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-rw-r--r--tools/build/Documentation/Build.txt1
-rw-r--r--tools/build/Makefile.build4
-rw-r--r--tools/build/feature/Makefile13
-rw-r--r--tools/build/feature/test-bpf.c18
-rw-r--r--tools/build/feature/test-glibc.c11
-rw-r--r--tools/build/tests/ex/Build1
-rw-r--r--tools/hv/lsvmbus101
-rw-r--r--tools/iio/generic_buffer.c115
-rw-r--r--tools/iio/iio_event_monitor.c40
-rw-r--r--tools/iio/iio_utils.c243
-rw-r--r--tools/iio/iio_utils.h19
-rw-r--r--tools/iio/lsiio.c55
-rw-r--r--tools/include/linux/export.h10
-rw-r--r--tools/lguest/.gitignore1
-rw-r--r--tools/lguest/Makefile1
-rw-r--r--tools/lguest/lguest.c10
-rw-r--r--tools/lib/api/fs/debugfs.c15
-rw-r--r--tools/lib/bpf/.gitignore2
-rw-r--r--tools/lib/bpf/Build1
-rw-r--r--tools/lib/bpf/Makefile195
-rw-r--r--tools/lib/bpf/bpf.c85
-rw-r--r--tools/lib/bpf/bpf.h23
-rw-r--r--tools/lib/bpf/libbpf.c1037
-rw-r--r--tools/lib/bpf/libbpf.h81
-rw-r--r--tools/lib/lockdep/preload.c2
-rw-r--r--tools/lib/lockdep/uinclude/linux/kernel.h2
-rw-r--r--tools/lib/lockdep/uinclude/linux/rbtree.h1
-rw-r--r--tools/lib/traceevent/event-parse.c78
-rw-r--r--tools/lib/traceevent/event-parse.h8
-rw-r--r--tools/perf/.gitignore1
-rw-r--r--tools/perf/Build1
-rw-r--r--tools/perf/Documentation/intel-bts.txt86
-rw-r--r--tools/perf/Documentation/intel-pt.txt766
-rw-r--r--tools/perf/Documentation/itrace.txt22
-rw-r--r--tools/perf/Documentation/perf-bench.txt4
-rw-r--r--tools/perf/Documentation/perf-inject.txt23
-rw-r--r--tools/perf/Documentation/perf-record.txt30
-rw-r--r--tools/perf/Documentation/perf-report.txt39
-rw-r--r--tools/perf/Documentation/perf-script.txt37
-rw-r--r--tools/perf/Documentation/perf-top.txt21
-rw-r--r--tools/perf/MANIFEST2
-rw-r--r--tools/perf/Makefile.perf17
-rw-r--r--tools/perf/arch/alpha/Build1
-rw-r--r--tools/perf/arch/common.c4
-rw-r--r--tools/perf/arch/common.h2
-rw-r--r--tools/perf/arch/mips/Build1
-rw-r--r--tools/perf/arch/parisc/Build1
-rw-r--r--tools/perf/arch/x86/util/Build5
-rw-r--r--tools/perf/arch/x86/util/auxtrace.c83
-rw-r--r--tools/perf/arch/x86/util/intel-bts.c458
-rw-r--r--tools/perf/arch/x86/util/intel-pt.c1007
-rw-r--r--tools/perf/arch/x86/util/pmu.c18
-rw-r--r--tools/perf/arch/xtensa/Build1
-rw-r--r--tools/perf/arch/xtensa/Makefile3
-rw-r--r--tools/perf/arch/xtensa/util/Build1
-rw-r--r--tools/perf/arch/xtensa/util/dwarf-regs.c25
-rw-r--r--tools/perf/bench/Build1
-rw-r--r--tools/perf/bench/bench.h2
-rw-r--r--tools/perf/bench/futex-lock-pi.c219
-rw-r--r--tools/perf/bench/futex.h20
-rw-r--r--tools/perf/builtin-annotate.c4
-rw-r--r--tools/perf/builtin-bench.c2
-rw-r--r--tools/perf/builtin-buildid-cache.c30
-rw-r--r--tools/perf/builtin-buildid-list.c28
-rw-r--r--tools/perf/builtin-diff.c3
-rw-r--r--tools/perf/builtin-inject.c1
-rw-r--r--tools/perf/builtin-probe.c3
-rw-r--r--tools/perf/builtin-record.c25
-rw-r--r--tools/perf/builtin-report.c19
-rw-r--r--tools/perf/builtin-script.c73
-rw-r--r--tools/perf/builtin-stat.c230
-rw-r--r--tools/perf/builtin-top.c9
-rw-r--r--tools/perf/builtin-trace.c469
-rw-r--r--tools/perf/config/Makefile14
-rw-r--r--tools/perf/perf-with-kcore.sh28
-rw-r--r--tools/perf/perf.c2
-rw-r--r--tools/perf/perf.h3
-rwxr-xr-xtools/perf/python/twatch.py12
-rw-r--r--tools/perf/scripts/python/bin/compaction-times-record2
-rw-r--r--tools/perf/scripts/python/bin/compaction-times-report4
-rw-r--r--tools/perf/scripts/python/call-graph-from-postgresql.py327
-rw-r--r--tools/perf/scripts/python/compaction-times.py311
-rw-r--r--tools/perf/scripts/python/export-to-postgresql.py47
-rw-r--r--tools/perf/tests/Build1
-rw-r--r--tools/perf/tests/builtin-test.c4
-rw-r--r--tools/perf/tests/hists_cumulate.c4
-rw-r--r--tools/perf/tests/llvm.c98
-rw-r--r--tools/perf/tests/make13
-rw-r--r--tools/perf/tests/parse-events.c50
-rw-r--r--tools/perf/tests/tests.h1
-rw-r--r--tools/perf/tests/thread-map.c4
-rw-r--r--tools/perf/trace/strace/groups/file18
-rw-r--r--tools/perf/ui/browser.c17
-rw-r--r--tools/perf/ui/browser.h7
-rw-r--r--tools/perf/ui/browsers/annotate.c149
-rw-r--r--tools/perf/ui/browsers/header.c4
-rw-r--r--tools/perf/ui/browsers/hists.c66
-rw-r--r--tools/perf/ui/browsers/map.c11
-rw-r--r--tools/perf/ui/browsers/scripts.c2
-rw-r--r--tools/perf/ui/libslang.h3
-rw-r--r--tools/perf/ui/tui/progress.c19
-rw-r--r--tools/perf/ui/tui/util.c2
-rw-r--r--tools/perf/util/Build6
-rw-r--r--tools/perf/util/annotate.c128
-rw-r--r--tools/perf/util/annotate.h19
-rw-r--r--tools/perf/util/auxtrace.c15
-rw-r--r--tools/perf/util/auxtrace.h2
-rw-r--r--tools/perf/util/build-id.c38
-rw-r--r--tools/perf/util/build-id.h6
-rw-r--r--tools/perf/util/callchain.c93
-rw-r--r--tools/perf/util/callchain.h3
-rw-r--r--tools/perf/util/cloexec.h2
-rw-r--r--tools/perf/util/color.c21
-rw-r--r--tools/perf/util/color.h1
-rw-r--r--tools/perf/util/config.c4
-rw-r--r--tools/perf/util/counts.c52
-rw-r--r--tools/perf/util/counts.h37
-rw-r--r--tools/perf/util/debug.c5
-rw-r--r--tools/perf/util/debug.h1
-rw-r--r--tools/perf/util/dso.h6
-rw-r--r--tools/perf/util/dwarf-aux.c21
-rw-r--r--tools/perf/util/event.c28
-rw-r--r--tools/perf/util/event.h15
-rw-r--r--tools/perf/util/evlist.c48
-rw-r--r--tools/perf/util/evlist.h15
-rw-r--r--tools/perf/util/evsel.c173
-rw-r--r--tools/perf/util/evsel.h42
-rw-r--r--tools/perf/util/header.c36
-rw-r--r--tools/perf/util/header.h5
-rw-r--r--tools/perf/util/hist.c59
-rw-r--r--tools/perf/util/hist.h9
-rw-r--r--tools/perf/util/intel-bts.c933
-rw-r--r--tools/perf/util/intel-bts.h43
-rw-r--r--tools/perf/util/intel-pt-decoder/Build11
-rw-r--r--tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk386
-rw-r--r--tools/perf/util/intel-pt-decoder/inat.c96
-rw-r--r--tools/perf/util/intel-pt-decoder/inat.h221
-rw-r--r--tools/perf/util/intel-pt-decoder/inat_types.h29
-rw-r--r--tools/perf/util/intel-pt-decoder/insn.c594
-rw-r--r--tools/perf/util/intel-pt-decoder/insn.h201
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.c2345
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-decoder.h109
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c246
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h65
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-log.c155
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-log.h52
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c518
-rw-r--r--tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h70
-rw-r--r--tools/perf/util/intel-pt-decoder/x86-opcode-map.txt970
-rw-r--r--tools/perf/util/intel-pt.c1956
-rw-r--r--tools/perf/util/intel-pt.h56
-rw-r--r--tools/perf/util/llvm-utils.c408
-rw-r--r--tools/perf/util/llvm-utils.h49
-rw-r--r--tools/perf/util/machine.c27
-rw-r--r--tools/perf/util/machine.h6
-rw-r--r--tools/perf/util/map.c27
-rw-r--r--tools/perf/util/map.h7
-rw-r--r--tools/perf/util/ordered-events.c3
-rw-r--r--tools/perf/util/parse-events.c184
-rw-r--r--tools/perf/util/parse-events.h5
-rw-r--r--tools/perf/util/parse-events.l4
-rw-r--r--tools/perf/util/pmu.c55
-rw-r--r--tools/perf/util/pmu.h1
-rw-r--r--tools/perf/util/probe-event.c603
-rw-r--r--tools/perf/util/probe-event.h13
-rw-r--r--tools/perf/util/probe-file.c301
-rw-r--r--tools/perf/util/probe-file.h18
-rw-r--r--tools/perf/util/probe-finder.c23
-rw-r--r--tools/perf/util/python-ext-sources2
-rw-r--r--tools/perf/util/python.c140
-rw-r--r--tools/perf/util/record.c34
-rw-r--r--tools/perf/util/session.c41
-rw-r--r--tools/perf/util/sort.c80
-rw-r--r--tools/perf/util/sort.h3
-rw-r--r--tools/perf/util/srcline.c6
-rw-r--r--tools/perf/util/stat.c188
-rw-r--r--tools/perf/util/stat.h36
-rw-r--r--tools/perf/util/string.c39
-rw-r--r--tools/perf/util/strlist.c43
-rw-r--r--tools/perf/util/strlist.h9
-rw-r--r--tools/perf/util/symbol-elf.c13
-rw-r--r--tools/perf/util/symbol.c27
-rw-r--r--tools/perf/util/symbol.h7
-rw-r--r--tools/perf/util/thread_map.c6
-rw-r--r--tools/perf/util/tool.h1
-rw-r--r--tools/perf/util/trace-event-info.c22
-rw-r--r--tools/perf/util/trace-event-parse.c30
-rw-r--r--tools/perf/util/trace-event-read.c28
-rw-r--r--tools/perf/util/trace-event.c44
-rw-r--r--tools/perf/util/trace-event.h2
-rw-r--r--tools/perf/util/util.c147
-rw-r--r--tools/perf/util/util.h17
-rw-r--r--tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c4
-rwxr-xr-xtools/testing/selftests/firmware/fw_filesystem.sh25
-rwxr-xr-xtools/testing/selftests/firmware/fw_userhelper.sh12
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TASKS014
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE011
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE021
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE02-T1
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE031
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE041
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE051
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE061
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE071
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE081
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE08-T1
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TREE091
-rw-r--r--tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt1
-rw-r--r--tools/testing/selftests/x86/Makefile4
-rw-r--r--tools/testing/selftests/x86/entry_from_vm86.c139
-rw-r--r--tools/testing/selftests/x86/ldt_gdt.c576
-rw-r--r--tools/testing/selftests/x86/syscall_arg_fault.c130
-rw-r--r--tools/testing/selftests/x86/syscall_nt.c54
213 files changed, 19192 insertions, 1606 deletions
diff --git a/tools/build/Documentation/Build.txt b/tools/build/Documentation/Build.txt
index 00ad2d608727..aa5e092c4352 100644
--- a/tools/build/Documentation/Build.txt
+++ b/tools/build/Documentation/Build.txt
@@ -66,6 +66,7 @@ To follow the above example, the user provides following 'Build' files:
ex/Build:
ex-y += a.o
ex-y += b.o
+ ex-y += b.o # duplicates in the lists are allowed
libex-y += c.o
libex-y += d.o
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index faca2bf6a430..0c5f485521d6 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -57,11 +57,13 @@ quiet_cmd_cc_i_c = CPP $@
quiet_cmd_cc_s_c = AS $@
cmd_cc_s_c = $(CC) $(c_flags) -S -o $@ $<
+quiet_cmd_gen = GEN $@
+
# Link agregate command
# If there's nothing to link, create empty $@ object.
quiet_cmd_ld_multi = LD $@
cmd_ld_multi = $(if $(strip $(obj-y)),\
- $(LD) -r -o $@ $(obj-y),rm -f $@; $(AR) rcs $@)
+ $(LD) -r -o $@ $(filter $(obj-y),$^),rm -f $@; $(AR) rcs $@)
# Build rules
$(OUTPUT)%.o: %.c FORCE
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 463ed8f2a267..74ca42093d70 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -33,7 +33,8 @@ FILES= \
test-compile-32.bin \
test-compile-x32.bin \
test-zlib.bin \
- test-lzma.bin
+ test-lzma.bin \
+ test-bpf.bin
CC := $(CROSS_COMPILE)gcc -MD
PKG_CONFIG := $(CROSS_COMPILE)pkg-config
@@ -69,8 +70,13 @@ test-libelf.bin:
test-glibc.bin:
$(BUILD)
+DWARFLIBS := -ldw
+ifeq ($(findstring -static,${LDFLAGS}),-static)
+DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
+endif
+
test-dwarf.bin:
- $(BUILD) -ldw
+ $(BUILD) $(DWARFLIBS)
test-libelf-mmap.bin:
$(BUILD) -lelf
@@ -156,6 +162,9 @@ test-zlib.bin:
test-lzma.bin:
$(BUILD) -llzma
+test-bpf.bin:
+ $(BUILD)
+
-include *.d
###############################
diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
new file mode 100644
index 000000000000..062bac811af9
--- /dev/null
+++ b/tools/build/feature/test-bpf.c
@@ -0,0 +1,18 @@
+#include <linux/bpf.h>
+
+int main(void)
+{
+ union bpf_attr attr;
+
+ attr.prog_type = BPF_PROG_TYPE_KPROBE;
+ attr.insn_cnt = 0;
+ attr.insns = 0;
+ attr.license = 0;
+ attr.log_buf = 0;
+ attr.log_size = 0;
+ attr.log_level = 0;
+ attr.kern_version = 0;
+
+ attr = attr;
+ return 0;
+}
diff --git a/tools/build/feature/test-glibc.c b/tools/build/feature/test-glibc.c
index b0820345cd98..9367f7586676 100644
--- a/tools/build/feature/test-glibc.c
+++ b/tools/build/feature/test-glibc.c
@@ -1,8 +1,19 @@
+#include <stdlib.h>
+
+#if !defined(__UCLIBC__)
#include <gnu/libc-version.h>
+#else
+#define XSTR(s) STR(s)
+#define STR(s) #s
+#endif
int main(void)
{
+#if !defined(__UCLIBC__)
const char *version = gnu_get_libc_version();
+#else
+ const char *version = XSTR(__GLIBC__) "." XSTR(__GLIBC_MINOR__);
+#endif
return (long)version;
}
diff --git a/tools/build/tests/ex/Build b/tools/build/tests/ex/Build
index 70d876237c57..429c7d452101 100644
--- a/tools/build/tests/ex/Build
+++ b/tools/build/tests/ex/Build
@@ -1,6 +1,7 @@
ex-y += ex.o
ex-y += a.o
ex-y += b.o
+ex-y += b.o
ex-y += empty/
ex-y += empty2/
diff --git a/tools/hv/lsvmbus b/tools/hv/lsvmbus
new file mode 100644
index 000000000000..162a3784d80e
--- /dev/null
+++ b/tools/hv/lsvmbus
@@ -0,0 +1,101 @@
+#!/usr/bin/env python
+
+import os
+from optparse import OptionParser
+
+parser = OptionParser()
+parser.add_option("-v", "--verbose", dest="verbose",
+ help="print verbose messages. Try -vv, -vvv for \
+ more verbose messages", action="count")
+
+(options, args) = parser.parse_args()
+
+verbose = 0
+if options.verbose is not None:
+ verbose = options.verbose
+
+vmbus_sys_path = '/sys/bus/vmbus/devices'
+if not os.path.isdir(vmbus_sys_path):
+ print "%s doesn't exist: exiting..." % vmbus_sys_path
+ exit(-1)
+
+vmbus_dev_dict = {
+ '{0e0b6031-5213-4934-818b-38d90ced39db}' : '[Operating system shutdown]',
+ '{9527e630-d0ae-497b-adce-e80ab0175caf}' : '[Time Synchronization]',
+ '{57164f39-9115-4e78-ab55-382f3bd5422d}' : '[Heartbeat]',
+ '{a9a0f4e7-5a45-4d96-b827-8a841e8c03e6}' : '[Data Exchange]',
+ '{35fa2e29-ea23-4236-96ae-3a6ebacba440}' : '[Backup (volume checkpoint)]',
+ '{34d14be3-dee4-41c8-9ae7-6b174977c192}' : '[Guest services]',
+ '{525074dc-8985-46e2-8057-a307dc18a502}' : '[Dynamic Memory]',
+ '{cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a}' : 'Synthetic mouse',
+ '{f912ad6d-2b17-48ea-bd65-f927a61c7684}' : 'Synthetic keyboard',
+ '{da0a7802-e377-4aac-8e77-0558eb1073f8}' : 'Synthetic framebuffer adapter',
+ '{f8615163-df3e-46c5-913f-f2d2f965ed0e}' : 'Synthetic network adapter',
+ '{32412632-86cb-44a2-9b5c-50d1417354f5}' : 'Synthetic IDE Controller',
+ '{ba6163d9-04a1-4d29-b605-72e2ffb1dc7f}' : 'Synthetic SCSI Controller',
+ '{2f9bcc4a-0069-4af3-b76b-6fd0be528cda}' : 'Synthetic fiber channel adapter',
+ '{8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501}' : 'Synthetic RDMA adapter',
+ '{276aacf4-ac15-426c-98dd-7521ad3f01fe}' : '[Reserved system device]',
+ '{f8e65716-3cb3-4a06-9a60-1889c5cccab5}' : '[Reserved system device]',
+ '{3375baf4-9e15-4b30-b765-67acb10d607b}' : '[Reserved system device]',
+}
+
+def get_vmbus_dev_attr(dev_name, attr):
+ try:
+ f = open('%s/%s/%s' % (vmbus_sys_path, dev_name, attr), 'r')
+ lines = f.readlines()
+ f.close()
+ except IOError:
+ lines = []
+
+ return lines
+
+class VMBus_Dev:
+ pass
+
+
+vmbus_dev_list = []
+
+for f in os.listdir(vmbus_sys_path):
+ vmbus_id = get_vmbus_dev_attr(f, 'id')[0].strip()
+ class_id = get_vmbus_dev_attr(f, 'class_id')[0].strip()
+ device_id = get_vmbus_dev_attr(f, 'device_id')[0].strip()
+ dev_desc = vmbus_dev_dict.get(class_id, 'Unknown')
+
+ chn_vp_mapping = get_vmbus_dev_attr(f, 'channel_vp_mapping')
+ chn_vp_mapping = [c.strip() for c in chn_vp_mapping]
+ chn_vp_mapping = sorted(chn_vp_mapping,
+ key = lambda c : int(c.split(':')[0]))
+
+ chn_vp_mapping = ['\tRel_ID=%s, target_cpu=%s' %
+ (c.split(':')[0], c.split(':')[1])
+ for c in chn_vp_mapping]
+ d = VMBus_Dev()
+ d.sysfs_path = '%s/%s' % (vmbus_sys_path, f)
+ d.vmbus_id = vmbus_id
+ d.class_id = class_id
+ d.device_id = device_id
+ d.dev_desc = dev_desc
+ d.chn_vp_mapping = '\n'.join(chn_vp_mapping)
+ if d.chn_vp_mapping:
+ d.chn_vp_mapping += '\n'
+
+ vmbus_dev_list.append(d)
+
+
+vmbus_dev_list = sorted(vmbus_dev_list, key = lambda d : int(d.vmbus_id))
+
+format0 = '%2s: %s'
+format1 = '%2s: Class_ID = %s - %s\n%s'
+format2 = '%2s: Class_ID = %s - %s\n\tDevice_ID = %s\n\tSysfs path: %s\n%s'
+
+for d in vmbus_dev_list:
+ if verbose == 0:
+ print ('VMBUS ID ' + format0) % (d.vmbus_id, d.dev_desc)
+ elif verbose == 1:
+ print ('VMBUS ID ' + format1) % \
+ (d.vmbus_id, d.class_id, d.dev_desc, d.chn_vp_mapping)
+ else:
+ print ('VMBUS ID ' + format2) % \
+ (d.vmbus_id, d.class_id, d.dev_desc, \
+ d.device_id, d.sysfs_path, d.chn_vp_mapping)
diff --git a/tools/iio/generic_buffer.c b/tools/iio/generic_buffer.c
index 4eebb6616e5c..9f7b85bf6ada 100644
--- a/tools/iio/generic_buffer.c
+++ b/tools/iio/generic_buffer.c
@@ -51,14 +51,33 @@ int size_from_channelarray(struct iio_channel_info *channels, int num_channels)
if (bytes % channels[i].bytes == 0)
channels[i].location = bytes;
else
- channels[i].location = bytes - bytes%channels[i].bytes
- + channels[i].bytes;
+ channels[i].location = bytes - bytes % channels[i].bytes
+ + channels[i].bytes;
+
bytes = channels[i].location + channels[i].bytes;
i++;
}
+
return bytes;
}
+void print1byte(uint8_t input, struct iio_channel_info *info)
+{
+ /*
+ * Shift before conversion to avoid sign extension
+ * of left aligned data
+ */
+ input >>= info->shift;
+ input &= info->mask;
+ if (info->is_signed) {
+ int8_t val = (int8_t)(input << (8 - info->bits_used)) >>
+ (8 - info->bits_used);
+ printf("%05f ", ((float)val + info->offset) * info->scale);
+ } else {
+ printf("%05f ", ((float)input + info->offset) * info->scale);
+ }
+}
+
void print2byte(uint16_t input, struct iio_channel_info *info)
{
/* First swap if incorrect endian */
@@ -136,9 +155,9 @@ void print8byte(uint64_t input, struct iio_channel_info *info)
/**
* process_scan() - print out the values in SI units
* @data: pointer to the start of the scan
- * @channels: information about the channels. Note
- * size_from_channelarray must have been called first to fill the
- * location offsets.
+ * @channels: information about the channels.
+ * Note: size_from_channelarray must have been called first
+ * to fill the location offsets.
* @num_channels: number of channels
**/
void process_scan(char *data,
@@ -150,6 +169,10 @@ void process_scan(char *data,
for (k = 0; k < num_channels; k++)
switch (channels[k].bytes) {
/* only a few cases implemented so far */
+ case 1:
+ print1byte(*(uint8_t *)(data + channels[k].location),
+ &channels[k]);
+ break;
case 2:
print2byte(*(uint16_t *)(data + channels[k].location),
&channels[k]);
@@ -170,15 +193,15 @@ void process_scan(char *data,
void print_usage(void)
{
- printf("Usage: generic_buffer [options]...\n"
- "Capture, convert and output data from IIO device buffer\n"
- " -c <n> Do n conversions\n"
- " -e Disable wait for event (new data)\n"
- " -g Use trigger-less mode\n"
- " -l <n> Set buffer length to n samples\n"
- " -n <name> Set device name (mandatory)\n"
- " -t <name> Set trigger name\n"
- " -w <n> Set delay between reads in us (event-less mode)\n");
+ fprintf(stderr, "Usage: generic_buffer [options]...\n"
+ "Capture, convert and output data from IIO device buffer\n"
+ " -c <n> Do n conversions\n"
+ " -e Disable wait for event (new data)\n"
+ " -g Use trigger-less mode\n"
+ " -l <n> Set buffer length to n samples\n"
+ " -n <name> Set device name (mandatory)\n"
+ " -t <name> Set trigger name\n"
+ " -w <n> Set delay between reads in us (event-less mode)\n");
}
int main(int argc, char **argv)
@@ -213,6 +236,7 @@ int main(int argc, char **argv)
num_loops = strtoul(optarg, &dummy, 10);
if (errno)
return -errno;
+
break;
case 'e':
noevents = 1;
@@ -225,6 +249,7 @@ int main(int argc, char **argv)
buf_len = strtoul(optarg, &dummy, 10);
if (errno)
return -errno;
+
break;
case 'n':
device_name = optarg;
@@ -245,8 +270,8 @@ int main(int argc, char **argv)
}
}
- if (device_name == NULL) {
- printf("Device name not set\n");
+ if (!device_name) {
+ fprintf(stderr, "Device name not set\n");
print_usage();
return -1;
}
@@ -254,9 +279,10 @@ int main(int argc, char **argv)
/* Find the device requested */
dev_num = find_type_by_name(device_name, "iio:device");
if (dev_num < 0) {
- printf("Failed to find the %s\n", device_name);
+ fprintf(stderr, "Failed to find the %s\n", device_name);
return dev_num;
}
+
printf("iio device number being used is %d\n", dev_num);
ret = asprintf(&dev_dir_name, "%siio:device%d", iio_dir, dev_num);
@@ -264,7 +290,7 @@ int main(int argc, char **argv)
return -ENOMEM;
if (!notrigger) {
- if (trigger_name == NULL) {
+ if (!trigger_name) {
/*
* Build the trigger name. If it is device associated
* its name is <device_name>_dev[n] where n matches
@@ -281,13 +307,16 @@ int main(int argc, char **argv)
/* Verify the trigger exists */
trig_num = find_type_by_name(trigger_name, "trigger");
if (trig_num < 0) {
- printf("Failed to find the trigger %s\n", trigger_name);
+ fprintf(stderr, "Failed to find the trigger %s\n",
+ trigger_name);
ret = trig_num;
goto error_free_triggername;
}
+
printf("iio trigger number being used is %d\n", trig_num);
- } else
+ } else {
printf("trigger-less mode selected\n");
+ }
/*
* Parse the files in scan_elements to identify what channels are
@@ -295,8 +324,8 @@ int main(int argc, char **argv)
*/
ret = build_channel_array(dev_dir_name, &channels, &num_channels);
if (ret) {
- printf("Problem reading scan element information\n");
- printf("diag %s\n", dev_dir_name);
+ fprintf(stderr, "Problem reading scan element information\n"
+ "diag %s\n", dev_dir_name);
goto error_free_triggername;
}
@@ -314,13 +343,16 @@ int main(int argc, char **argv)
if (!notrigger) {
printf("%s %s\n", dev_dir_name, trigger_name);
- /* Set the device trigger to be the data ready trigger found
- * above */
+ /*
+ * Set the device trigger to be the data ready trigger found
+ * above
+ */
ret = write_sysfs_string_and_verify("trigger/current_trigger",
dev_dir_name,
trigger_name);
if (ret < 0) {
- printf("Failed to write current_trigger file\n");
+ fprintf(stderr,
+ "Failed to write current_trigger file\n");
goto error_free_buf_dir_name;
}
}
@@ -332,10 +364,14 @@ int main(int argc, char **argv)
/* Enable the buffer */
ret = write_sysfs_int("enable", buf_dir_name, 1);
- if (ret < 0)
+ if (ret < 0) {
+ fprintf(stderr,
+ "Failed to enable buffer: %s\n", strerror(-ret));
goto error_free_buf_dir_name;
+ }
+
scan_size = size_from_channelarray(channels, num_channels);
- data = malloc(scan_size*buf_len);
+ data = malloc(scan_size * buf_len);
if (!data) {
ret = -ENOMEM;
goto error_free_buf_dir_name;
@@ -349,13 +385,12 @@ int main(int argc, char **argv)
/* Attempt to open non blocking the access dev */
fp = open(buffer_access, O_RDONLY | O_NONBLOCK);
- if (fp == -1) { /* If it isn't there make the node */
+ if (fp == -1) { /* TODO: If it isn't there make the node */
ret = -errno;
- printf("Failed to open %s\n", buffer_access);
+ fprintf(stderr, "Failed to open %s\n", buffer_access);
goto error_free_buffer_access;
}
- /* Wait for events 10 times */
for (j = 0; j < num_loops; j++) {
if (!noevents) {
struct pollfd pfd = {
@@ -372,25 +407,22 @@ int main(int argc, char **argv)
}
toread = buf_len;
-
} else {
usleep(timedelay);
toread = 64;
}
- read_size = read(fp,
- data,
- toread*scan_size);
+ read_size = read(fp, data, toread * scan_size);
if (read_size < 0) {
if (errno == EAGAIN) {
- printf("nothing available\n");
+ fprintf(stderr, "nothing available\n");
continue;
- } else
+ } else {
break;
+ }
}
- for (i = 0; i < read_size/scan_size; i++)
- process_scan(data + scan_size*i,
- channels,
+ for (i = 0; i < read_size / scan_size; i++)
+ process_scan(data + scan_size * i, channels,
num_channels);
}
@@ -404,11 +436,13 @@ int main(int argc, char **argv)
ret = write_sysfs_string("trigger/current_trigger",
dev_dir_name, "NULL");
if (ret < 0)
- printf("Failed to write to %s\n", dev_dir_name);
+ fprintf(stderr, "Failed to write to %s\n",
+ dev_dir_name);
error_close_buffer_access:
if (close(fp) == -1)
perror("Failed to close buffer");
+
error_free_buffer_access:
free(buffer_access);
error_free_data:
@@ -424,6 +458,7 @@ error_free_channels:
error_free_triggername:
if (datardytrigger)
free(trigger_name);
+
error_free_dev_dir_name:
free(dev_dir_name);
diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c
index 016760e769c0..cd3fd41b481d 100644
--- a/tools/iio/iio_event_monitor.c
+++ b/tools/iio/iio_event_monitor.c
@@ -13,7 +13,6 @@
*
* Usage:
* iio_event_monitor <device_name>
- *
*/
#include <unistd.h>
@@ -51,6 +50,9 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_HUMIDITYRELATIVE] = "humidityrelative",
[IIO_ACTIVITY] = "activity",
[IIO_STEPS] = "steps",
+ [IIO_ENERGY] = "energy",
+ [IIO_DISTANCE] = "distance",
+ [IIO_VELOCITY] = "velocity",
};
static const char * const iio_ev_type_text[] = {
@@ -99,6 +101,7 @@ static const char * const iio_modifier_names[] = {
[IIO_MOD_JOGGING] = "jogging",
[IIO_MOD_WALKING] = "walking",
[IIO_MOD_STILL] = "still",
+ [IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z] = "sqrt(x^2+y^2+z^2)",
};
static bool event_is_known(struct iio_event_data *event)
@@ -130,6 +133,9 @@ static bool event_is_known(struct iio_event_data *event)
case IIO_HUMIDITYRELATIVE:
case IIO_ACTIVITY:
case IIO_STEPS:
+ case IIO_ENERGY:
+ case IIO_DISTANCE:
+ case IIO_VELOCITY:
break;
default:
return false;
@@ -167,6 +173,7 @@ static bool event_is_known(struct iio_event_data *event)
case IIO_MOD_JOGGING:
case IIO_MOD_WALKING:
case IIO_MOD_STILL:
+ case IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z:
break;
default:
return false;
@@ -208,8 +215,9 @@ static void print_event(struct iio_event_data *event)
bool diff = IIO_EVENT_CODE_EXTRACT_DIFF(event->id);
if (!event_is_known(event)) {
- printf("Unknown event: time: %lld, id: %llx\n",
- event->timestamp, event->id);
+ fprintf(stderr, "Unknown event: time: %lld, id: %llx\n",
+ event->timestamp, event->id);
+
return;
}
@@ -229,6 +237,7 @@ static void print_event(struct iio_event_data *event)
if (dir != IIO_EV_DIR_NONE)
printf(", direction: %s", iio_ev_dir_text[dir]);
+
printf("\n");
}
@@ -242,7 +251,7 @@ int main(int argc, char **argv)
int fd, event_fd;
if (argc <= 1) {
- printf("Usage: %s <device_name>\n", argv[0]);
+ fprintf(stderr, "Usage: %s <device_name>\n", argv[0]);
return -1;
}
@@ -251,14 +260,15 @@ int main(int argc, char **argv)
dev_num = find_type_by_name(device_name, "iio:device");
if (dev_num >= 0) {
printf("Found IIO device with name %s with device number %d\n",
- device_name, dev_num);
+ device_name, dev_num);
ret = asprintf(&chrdev_name, "/dev/iio:device%d", dev_num);
- if (ret < 0) {
+ if (ret < 0)
return -ENOMEM;
- }
} else {
- /* If we can't find a IIO device by name assume device_name is a
- IIO chrdev */
+ /*
+ * If we can't find an IIO device by name assume device_name is
+ * an IIO chrdev
+ */
chrdev_name = strdup(device_name);
if (!chrdev_name)
return -ENOMEM;
@@ -267,14 +277,14 @@ int main(int argc, char **argv)
fd = open(chrdev_name, 0);
if (fd == -1) {
ret = -errno;
- fprintf(stdout, "Failed to open %s\n", chrdev_name);
+ fprintf(stderr, "Failed to open %s\n", chrdev_name);
goto error_free_chrdev_name;
}
ret = ioctl(fd, IIO_GET_EVENT_FD_IOCTL, &event_fd);
if (ret == -1 || event_fd == -1) {
ret = -errno;
- fprintf(stdout, "Failed to retrieve event fd\n");
+ fprintf(stderr, "Failed to retrieve event fd\n");
if (close(fd) == -1)
perror("Failed to close character device file");
@@ -290,7 +300,7 @@ int main(int argc, char **argv)
ret = read(event_fd, &event, sizeof(event));
if (ret == -1) {
if (errno == EAGAIN) {
- printf("nothing available\n");
+ fprintf(stderr, "nothing available\n");
continue;
} else {
ret = -errno;
@@ -299,6 +309,12 @@ int main(int argc, char **argv)
}
}
+ if (ret != sizeof(event)) {
+ fprintf(stderr, "Reading event failed!\n");
+ ret = -EIO;
+ break;
+ }
+
print_event(&event);
}
diff --git a/tools/iio/iio_utils.c b/tools/iio/iio_utils.c
index ec9ab7f9ae4c..5eb6793f3972 100644
--- a/tools/iio/iio_utils.c
+++ b/tools/iio/iio_utils.c
@@ -6,9 +6,6 @@
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
-#ifndef _IIO_UTILS_H
-#define _IIO_UTILS_H
-
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
@@ -32,15 +29,14 @@ static char * const iio_direction[] = {
*
* Returns 0 on success, or a negative error code if string extraction failed.
**/
-int iioutils_break_up_name(const char *full_name,
- char **generic_name)
+int iioutils_break_up_name(const char *full_name, char **generic_name)
{
char *current;
char *w, *r;
char *working, *prefix = "";
int i, ret;
- for (i = 0; i < sizeof(iio_direction) / sizeof(iio_direction[0]); i++)
+ for (i = 0; i < ARRAY_SIZE(iio_direction); i++)
if (!strncmp(full_name, iio_direction[i],
strlen(iio_direction[i]))) {
prefix = iio_direction[i];
@@ -65,6 +61,7 @@ int iioutils_break_up_name(const char *full_name,
*w = *r;
w++;
}
+
r++;
}
*w = '\0';
@@ -88,15 +85,10 @@ int iioutils_break_up_name(const char *full_name,
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int iioutils_get_type(unsigned *is_signed,
- unsigned *bytes,
- unsigned *bits_used,
- unsigned *shift,
- uint64_t *mask,
- unsigned *be,
- const char *device_dir,
- const char *name,
- const char *generic_name)
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
+ unsigned *shift, uint64_t *mask, unsigned *be,
+ const char *device_dir, const char *name,
+ const char *generic_name)
{
FILE *sysfsfp;
int ret;
@@ -122,12 +114,13 @@ int iioutils_get_type(unsigned *is_signed,
}
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
+
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
/*
* Do we allow devices to override a generic name with
* a specific one?
@@ -140,10 +133,12 @@ int iioutils_get_type(unsigned *is_signed,
ret = -ENOMEM;
goto error_closedir;
}
+
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", filename);
+ fprintf(stderr, "failed to open %s\n",
+ filename);
goto error_free_filename;
}
@@ -155,31 +150,36 @@ int iioutils_get_type(unsigned *is_signed,
&padint, shift);
if (ret < 0) {
ret = -errno;
- printf("failed to pass scan type description\n");
+ fprintf(stderr,
+ "failed to pass scan type description\n");
goto error_close_sysfsfp;
} else if (ret != 5) {
ret = -EIO;
- printf("scan type description didn't match\n");
+ fprintf(stderr,
+ "scan type description didn't match\n");
goto error_close_sysfsfp;
}
+
*be = (endianchar == 'b');
*bytes = padint / 8;
if (*bits_used == 64)
*mask = ~0;
else
- *mask = (1 << *bits_used) - 1;
+ *mask = (1ULL << *bits_used) - 1;
+
*is_signed = (signchar == 's');
if (fclose(sysfsfp)) {
ret = -errno;
- printf("Failed to close %s\n", filename);
+ fprintf(stderr, "Failed to close %s\n",
+ filename);
goto error_free_filename;
}
sysfsfp = 0;
free(filename);
-
filename = 0;
}
+
error_close_sysfsfp:
if (sysfsfp)
if (fclose(sysfsfp))
@@ -188,6 +188,7 @@ error_close_sysfsfp:
error_free_filename:
if (filename)
free(filename);
+
error_closedir:
if (closedir(dp) == -1)
perror("iioutils_get_type(): Failed to close directory");
@@ -212,11 +213,9 @@ error_free_scan_el_dir:
*
* Returns a value >= 0 on success, otherwise a negative error code.
**/
-int iioutils_get_param_float(float *output,
- const char *param_name,
- const char *device_dir,
- const char *name,
- const char *generic_name)
+int iioutils_get_param_float(float *output, const char *param_name,
+ const char *device_dir, const char *name,
+ const char *generic_name)
{
FILE *sysfsfp;
int ret;
@@ -235,13 +234,15 @@ int iioutils_get_param_float(float *output,
ret = -ENOMEM;
goto error_free_builtname;
}
+
dp = opendir(device_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_builtname_generic;
}
+
ret = -ENOENT;
- while (ent = readdir(dp), ent != NULL)
+ while (ent = readdir(dp), ent)
if ((strcmp(builtname, ent->d_name) == 0) ||
(strcmp(builtname_generic, ent->d_name) == 0)) {
ret = asprintf(&filename,
@@ -250,11 +251,13 @@ int iioutils_get_param_float(float *output,
ret = -ENOMEM;
goto error_closedir;
}
+
sysfsfp = fopen(filename, "r");
if (!sysfsfp) {
ret = -errno;
goto error_free_filename;
}
+
errno = 0;
if (fscanf(sysfsfp, "%f", output) != 1)
ret = errno ? -errno : -ENODATA;
@@ -264,6 +267,7 @@ int iioutils_get_param_float(float *output,
error_free_filename:
if (filename)
free(filename);
+
error_closedir:
if (closedir(dp) == -1)
perror("iioutils_get_param_float(): Failed to close directory");
@@ -282,19 +286,17 @@ error_free_builtname:
* @cnt: the amount of array elements
**/
-void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
- int cnt)
+void bsort_channel_array_by_index(struct iio_channel_info *ci_array, int cnt)
{
-
struct iio_channel_info temp;
int x, y;
for (x = 0; x < cnt; x++)
for (y = 0; y < (cnt - 1); y++)
- if ((*ci_array)[y].index > (*ci_array)[y+1].index) {
- temp = (*ci_array)[y + 1];
- (*ci_array)[y + 1] = (*ci_array)[y];
- (*ci_array)[y] = temp;
+ if (ci_array[y].index > ci_array[y + 1].index) {
+ temp = ci_array[y + 1];
+ ci_array[y + 1] = ci_array[y];
+ ci_array[y] = temp;
}
}
@@ -307,8 +309,7 @@ void bsort_channel_array_by_index(struct iio_channel_info **ci_array,
* Returns 0 on success, otherwise a negative error code.
**/
int build_channel_array(const char *device_dir,
- struct iio_channel_info **ci_array,
- int *counter)
+ struct iio_channel_info **ci_array, int *counter)
{
DIR *dp;
FILE *sysfsfp;
@@ -325,11 +326,12 @@ int build_channel_array(const char *device_dir,
return -ENOMEM;
dp = opendir(scan_el_dir);
- if (dp == NULL) {
+ if (!dp) {
ret = -errno;
goto error_free_name;
}
- while (ent = readdir(dp), ent != NULL)
+
+ while (ent = readdir(dp), ent)
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) {
ret = asprintf(&filename,
@@ -338,12 +340,14 @@ int build_channel_array(const char *device_dir,
ret = -ENOMEM;
goto error_close_dir;
}
+
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
goto error_close_dir;
}
+
errno = 0;
if (fscanf(sysfsfp, "%i", &ret) != 1) {
ret = errno ? -errno : -ENODATA;
@@ -353,9 +357,9 @@ int build_channel_array(const char *device_dir,
free(filename);
goto error_close_dir;
}
-
if (ret == 1)
(*counter)++;
+
if (fclose(sysfsfp)) {
ret = -errno;
free(filename);
@@ -364,13 +368,15 @@ int build_channel_array(const char *device_dir,
free(filename);
}
+
*ci_array = malloc(sizeof(**ci_array) * (*counter));
- if (*ci_array == NULL) {
+ if (!*ci_array) {
ret = -ENOMEM;
goto error_close_dir;
}
+
seekdir(dp, 0);
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name + strlen(ent->d_name) - strlen("_en"),
"_en") == 0) {
int current_enabled = 0;
@@ -384,13 +390,15 @@ int build_channel_array(const char *device_dir,
count--;
goto error_cleanup_array;
}
+
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
free(filename);
count--;
goto error_cleanup_array;
}
+
errno = 0;
if (fscanf(sysfsfp, "%i", &current_enabled) != 1) {
ret = errno ? -errno : -ENODATA;
@@ -417,12 +425,13 @@ int build_channel_array(const char *device_dir,
current->name = strndup(ent->d_name,
strlen(ent->d_name) -
strlen("_en"));
- if (current->name == NULL) {
+ if (!current->name) {
free(filename);
ret = -ENOMEM;
count--;
goto error_cleanup_array;
}
+
/* Get the generic and specific name elements */
ret = iioutils_break_up_name(current->name,
&current->generic_name);
@@ -432,6 +441,7 @@ int build_channel_array(const char *device_dir,
count--;
goto error_cleanup_array;
}
+
ret = asprintf(&filename,
"%s/%s_index",
scan_el_dir,
@@ -441,10 +451,12 @@ int build_channel_array(const char *device_dir,
ret = -ENOMEM;
goto error_cleanup_array;
}
+
sysfsfp = fopen(filename, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", filename);
+ fprintf(stderr, "failed to open %s\n",
+ filename);
free(filename);
goto error_cleanup_array;
}
@@ -472,15 +484,17 @@ int build_channel_array(const char *device_dir,
device_dir,
current->name,
current->generic_name);
- if (ret < 0)
+ if ((ret < 0) && (ret != -ENOENT))
goto error_cleanup_array;
+
ret = iioutils_get_param_float(&current->offset,
"offset",
device_dir,
current->name,
current->generic_name);
- if (ret < 0)
+ if ((ret < 0) && (ret != -ENOENT))
goto error_cleanup_array;
+
ret = iioutils_get_type(&current->is_signed,
&current->bytes,
&current->bits_used,
@@ -502,7 +516,7 @@ int build_channel_array(const char *device_dir,
free(scan_el_dir);
/* reorder so that the array is in index order */
- bsort_channel_array_by_index(ci_array, *counter);
+ bsort_channel_array_by_index(*ci_array, *counter);
return 0;
@@ -512,6 +526,8 @@ error_cleanup_array:
free((*ci_array)[i].generic_name);
}
free(*ci_array);
+ *ci_array = NULL;
+ *counter = 0;
error_close_dir:
if (dp)
if (closedir(dp) == -1)
@@ -523,7 +539,7 @@ error_free_name:
return ret;
}
-int calc_digits(int num)
+static int calc_digits(int num)
{
int count = 0;
@@ -549,44 +565,43 @@ int find_type_by_name(const char *name, const char *type)
const struct dirent *ent;
int number, numstrlen, ret;
- FILE *nameFile;
+ FILE *namefp;
DIR *dp;
char thisname[IIO_MAX_NAME_LENGTH];
char *filename;
dp = opendir(iio_dir);
- if (dp == NULL) {
- printf("No industrialio devices available\n");
+ if (!dp) {
+ fprintf(stderr, "No industrialio devices available\n");
return -ENODEV;
}
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (strcmp(ent->d_name, ".") != 0 &&
- strcmp(ent->d_name, "..") != 0 &&
- strlen(ent->d_name) > strlen(type) &&
- strncmp(ent->d_name, type, strlen(type)) == 0) {
+ strcmp(ent->d_name, "..") != 0 &&
+ strlen(ent->d_name) > strlen(type) &&
+ strncmp(ent->d_name, type, strlen(type)) == 0) {
errno = 0;
ret = sscanf(ent->d_name + strlen(type), "%d", &number);
if (ret < 0) {
ret = -errno;
- printf("failed to read element number\n");
+ fprintf(stderr,
+ "failed to read element number\n");
goto error_close_dir;
} else if (ret != 1) {
ret = -EIO;
- printf("failed to match element number\n");
+ fprintf(stderr,
+ "failed to match element number\n");
goto error_close_dir;
}
numstrlen = calc_digits(number);
/* verify the next character is not a colon */
if (strncmp(ent->d_name + strlen(type) + numstrlen,
- ":",
- 1) != 0) {
- filename = malloc(strlen(iio_dir)
- + strlen(type)
- + numstrlen
- + 6);
- if (filename == NULL) {
+ ":", 1) != 0) {
+ filename = malloc(strlen(iio_dir) + strlen(type)
+ + numstrlen + 6);
+ if (!filename) {
ret = -ENOMEM;
goto error_close_dir;
}
@@ -598,19 +613,20 @@ int find_type_by_name(const char *name, const char *type)
goto error_close_dir;
}
- nameFile = fopen(filename, "r");
- if (!nameFile) {
+ namefp = fopen(filename, "r");
+ if (!namefp) {
free(filename);
continue;
}
+
free(filename);
errno = 0;
- if (fscanf(nameFile, "%s", thisname) != 1) {
+ if (fscanf(namefp, "%s", thisname) != 1) {
ret = errno ? -errno : -ENODATA;
goto error_close_dir;
}
- if (fclose(nameFile)) {
+ if (fclose(namefp)) {
ret = -errno;
goto error_close_dir;
}
@@ -618,6 +634,7 @@ int find_type_by_name(const char *name, const char *type)
if (strcmp(name, thisname) == 0) {
if (closedir(dp) == -1)
return -errno;
+
return number;
}
}
@@ -631,6 +648,7 @@ int find_type_by_name(const char *name, const char *type)
error_close_dir:
if (closedir(dp) == -1)
perror("find_type_by_name(): Failed to close directory");
+
return ret;
}
@@ -642,18 +660,20 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
int test;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL)
+ if (!temp)
return -ENOMEM;
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", temp);
+ fprintf(stderr, "failed to open %s\n", temp);
goto error_free;
}
+
ret = fprintf(sysfsfp, "%d", val);
if (ret < 0) {
if (fclose(sysfsfp))
@@ -669,11 +689,12 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("failed to open %s\n", temp);
+ fprintf(stderr, "failed to open %s\n", temp);
goto error_free;
}
+
if (fscanf(sysfsfp, "%d", &test) != 1) {
ret = errno ? -errno : -ENODATA;
if (fclose(sysfsfp))
@@ -688,13 +709,13 @@ static int _write_sysfs_int(const char *filename, const char *basedir, int val,
}
if (test != val) {
- printf("Possible failure in int write %d to %s%s\n",
- val,
- basedir,
- filename);
+ fprintf(stderr,
+ "Possible failure in int write %d to %s/%s\n",
+ val, basedir, filename);
ret = -1;
}
}
+
error_free:
free(temp);
return ret;
@@ -735,20 +756,22 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed\n");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed\n");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
sysfsfp = fopen(temp, "w");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("Could not open %s\n", temp);
+ fprintf(stderr, "Could not open %s\n", temp);
goto error_free;
}
+
ret = fprintf(sysfsfp, "%s", val);
if (ret < 0) {
if (fclose(sysfsfp))
@@ -764,11 +787,12 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
if (verify) {
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
- printf("could not open file to verify\n");
+ fprintf(stderr, "Could not open file to verify\n");
goto error_free;
}
+
if (fscanf(sysfsfp, "%s", temp) != 1) {
ret = errno ? -errno : -ENODATA;
if (fclose(sysfsfp))
@@ -783,16 +807,14 @@ static int _write_sysfs_string(const char *filename, const char *basedir,
}
if (strcmp(temp, val) != 0) {
- printf("Possible failure in string write of %s "
- "Should be %s "
- "written to %s\%s\n",
- temp,
- val,
- basedir,
- filename);
+ fprintf(stderr,
+ "Possible failure in string write of %s "
+ "Should be %s written to %s/%s\n", temp, val,
+ basedir, filename);
ret = -1;
}
}
+
error_free:
free(temp);
@@ -841,19 +863,21 @@ int read_sysfs_posint(const char *filename, const char *basedir)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%d\n", &ret) != 1) {
ret = errno ? -errno : -ENODATA;
@@ -868,6 +892,7 @@ int read_sysfs_posint(const char *filename, const char *basedir)
error_free:
free(temp);
+
return ret;
}
@@ -885,19 +910,21 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%f\n", val) != 1) {
ret = errno ? -errno : -ENODATA;
@@ -912,6 +939,7 @@ int read_sysfs_float(const char *filename, const char *basedir, float *val)
error_free:
free(temp);
+
return ret;
}
@@ -929,19 +957,21 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
FILE *sysfsfp;
char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
- if (temp == NULL) {
- printf("Memory allocation failed");
+ if (!temp) {
+ fprintf(stderr, "Memory allocation failed");
return -ENOMEM;
}
+
ret = sprintf(temp, "%s/%s", basedir, filename);
if (ret < 0)
goto error_free;
sysfsfp = fopen(temp, "r");
- if (sysfsfp == NULL) {
+ if (!sysfsfp) {
ret = -errno;
goto error_free;
}
+
errno = 0;
if (fscanf(sysfsfp, "%s\n", str) != 1) {
ret = errno ? -errno : -ENODATA;
@@ -956,7 +986,6 @@ int read_sysfs_string(const char *filename, const char *basedir, char *str)
error_free:
free(temp);
+
return ret;
}
-
-#endif /* _IIO_UTILS_H */
diff --git a/tools/iio/iio_utils.h b/tools/iio/iio_utils.h
index 379eed9deaea..e3503bfe538b 100644
--- a/tools/iio/iio_utils.h
+++ b/tools/iio/iio_utils.h
@@ -18,6 +18,8 @@
#define FORMAT_SCAN_ELEMENTS_DIR "%s/scan_elements"
#define FORMAT_TYPE_FILE "%s_type"
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
+
extern const char *iio_dir;
/**
@@ -51,17 +53,16 @@ struct iio_channel_info {
};
int iioutils_break_up_name(const char *full_name, char **generic_name);
-int iioutils_get_type(unsigned *is_signed, unsigned *bytes,
- unsigned *bits_used, unsigned *shift,
- uint64_t *mask, unsigned *be,
- const char *device_dir, const char *name,
- const char *generic_name);
+int iioutils_get_type(unsigned *is_signed, unsigned *bytes, unsigned *bits_used,
+ unsigned *shift, uint64_t *mask, unsigned *be,
+ const char *device_dir, const char *name,
+ const char *generic_name);
int iioutils_get_param_float(float *output, const char *param_name,
- const char *device_dir, const char *name,
- const char *generic_name);
-void bsort_channel_array_by_index(struct iio_channel_info **ci_array, int cnt);
+ const char *device_dir, const char *name,
+ const char *generic_name);
+void bsort_channel_array_by_index(struct iio_channel_info *ci_array, int cnt);
int build_channel_array(const char *device_dir,
- struct iio_channel_info **ci_array, int *counter);
+ struct iio_channel_info **ci_array, int *counter);
int find_type_by_name(const char *name, const char *type);
int write_sysfs_int(const char *filename, const char *basedir, int val);
int write_sysfs_int_and_verify(const char *filename, const char *basedir,
diff --git a/tools/iio/lsiio.c b/tools/iio/lsiio.c
index b59ee1733924..3d650e668252 100644
--- a/tools/iio/lsiio.c
+++ b/tools/iio/lsiio.c
@@ -20,7 +20,6 @@
#include <sys/dir.h>
#include "iio_utils.h"
-
static enum verbosity {
VERBLEVEL_DEFAULT, /* 0 gives lspci behaviour */
VERBLEVEL_SENSORS, /* 1 lists sensors */
@@ -29,17 +28,16 @@ static enum verbosity {
const char *type_device = "iio:device";
const char *type_trigger = "trigger";
-
static inline int check_prefix(const char *str, const char *prefix)
{
return strlen(str) > strlen(prefix) &&
- strncmp(str, prefix, strlen(prefix)) == 0;
+ strncmp(str, prefix, strlen(prefix)) == 0;
}
static inline int check_postfix(const char *str, const char *postfix)
{
return strlen(str) > strlen(postfix) &&
- strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
+ strcmp(str + strlen(str) - strlen(postfix), postfix) == 0;
}
static int dump_channels(const char *dev_dir_name)
@@ -48,13 +46,13 @@ static int dump_channels(const char *dev_dir_name)
const struct dirent *ent;
dp = opendir(dev_dir_name);
- if (dp == NULL)
+ if (!dp)
return -errno;
- while (ent = readdir(dp), ent != NULL)
+
+ while (ent = readdir(dp), ent)
if (check_prefix(ent->d_name, "in_") &&
- check_postfix(ent->d_name, "_raw")) {
+ check_postfix(ent->d_name, "_raw"))
printf(" %-10s\n", ent->d_name);
- }
return (closedir(dp) == -1) ? -errno : 0;
}
@@ -63,20 +61,22 @@ static int dump_one_device(const char *dev_dir_name)
{
char name[IIO_MAX_NAME_LENGTH];
int dev_idx;
- int retval;
+ int ret;
- retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device),
- "%i", &dev_idx);
- if (retval != 1)
+ ret = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_device), "%i",
+ &dev_idx);
+ if (ret != 1)
return -EINVAL;
- retval = read_sysfs_string("name", dev_dir_name, name);
- if (retval)
- return retval;
+
+ ret = read_sysfs_string("name", dev_dir_name, name);
+ if (ret < 0)
+ return ret;
printf("Device %03d: %s\n", dev_idx, name);
if (verblevel >= VERBLEVEL_SENSORS)
return dump_channels(dev_dir_name);
+
return 0;
}
@@ -84,17 +84,19 @@ static int dump_one_trigger(const char *dev_dir_name)
{
char name[IIO_MAX_NAME_LENGTH];
int dev_idx;
- int retval;
+ int ret;
- retval = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger),
- "%i", &dev_idx);
- if (retval != 1)
+ ret = sscanf(dev_dir_name + strlen(iio_dir) + strlen(type_trigger),
+ "%i", &dev_idx);
+ if (ret != 1)
return -EINVAL;
- retval = read_sysfs_string("name", dev_dir_name, name);
- if (retval)
- return retval;
+
+ ret = read_sysfs_string("name", dev_dir_name, name);
+ if (ret < 0)
+ return ret;
printf("Trigger %03d: %s\n", dev_idx, name);
+
return 0;
}
@@ -105,12 +107,12 @@ static int dump_devices(void)
DIR *dp;
dp = opendir(iio_dir);
- if (dp == NULL) {
- printf("No industrial I/O devices available\n");
+ if (!dp) {
+ fprintf(stderr, "No industrial I/O devices available\n");
return -ENODEV;
}
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_device)) {
char *dev_dir_name;
@@ -132,7 +134,7 @@ static int dump_devices(void)
}
}
rewinddir(dp);
- while (ent = readdir(dp), ent != NULL) {
+ while (ent = readdir(dp), ent) {
if (check_prefix(ent->d_name, type_trigger)) {
char *dev_dir_name;
@@ -151,6 +153,7 @@ static int dump_devices(void)
free(dev_dir_name);
}
}
+
return (closedir(dp) == -1) ? -errno : 0;
error_close_dir:
diff --git a/tools/include/linux/export.h b/tools/include/linux/export.h
new file mode 100644
index 000000000000..d07e586b9ba0
--- /dev/null
+++ b/tools/include/linux/export.h
@@ -0,0 +1,10 @@
+#ifndef _TOOLS_LINUX_EXPORT_H_
+#define _TOOLS_LINUX_EXPORT_H_
+
+#define EXPORT_SYMBOL(sym)
+#define EXPORT_SYMBOL_GPL(sym)
+#define EXPORT_SYMBOL_GPL_FUTURE(sym)
+#define EXPORT_UNUSED_SYMBOL(sym)
+#define EXPORT_UNUSED_SYMBOL_GPL(sym)
+
+#endif
diff --git a/tools/lguest/.gitignore b/tools/lguest/.gitignore
index 115587fd5f65..8d9a8383a52e 100644
--- a/tools/lguest/.gitignore
+++ b/tools/lguest/.gitignore
@@ -1 +1,2 @@
lguest
+include
diff --git a/tools/lguest/Makefile b/tools/lguest/Makefile
index a107b5e4da13..d04599a79802 100644
--- a/tools/lguest/Makefile
+++ b/tools/lguest/Makefile
@@ -11,3 +11,4 @@ lguest: include/linux/virtio_types.h
clean:
rm -f lguest
+ rm -rf include
diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index e44052483ed9..80159e6811c2 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -125,7 +125,11 @@ struct device_list {
/* The list of Guest devices, based on command line arguments. */
static struct device_list devices;
-struct virtio_pci_cfg_cap {
+/*
+ * Just like struct virtio_pci_cfg_cap in uapi/linux/virtio_pci.h,
+ * but uses a u32 explicitly for the data.
+ */
+struct virtio_pci_cfg_cap_u32 {
struct virtio_pci_cap cap;
u32 pci_cfg_data; /* Data for BAR access. */
};
@@ -157,7 +161,7 @@ struct pci_config {
struct virtio_pci_notify_cap notify;
struct virtio_pci_cap isr;
struct virtio_pci_cap device;
- struct virtio_pci_cfg_cap cfg_access;
+ struct virtio_pci_cfg_cap_u32 cfg_access;
};
/* The device structure describes a single device. */
@@ -1291,7 +1295,7 @@ static struct device *dev_and_reg(u32 *reg)
* only fault if they try to write with some invalid bar/offset/length.
*/
static bool valid_bar_access(struct device *d,
- struct virtio_pci_cfg_cap *cfg_access)
+ struct virtio_pci_cfg_cap_u32 *cfg_access)
{
/* We only have 1 bar (BAR0) */
if (cfg_access->cap.bar != 0)
diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c
index 8305b3e9d48e..eb7cf4d18f8a 100644
--- a/tools/lib/api/fs/debugfs.c
+++ b/tools/lib/api/fs/debugfs.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include "debugfs.h"
+#include "tracefs.h"
#ifndef DEBUGFS_DEFAULT_PATH
#define DEBUGFS_DEFAULT_PATH "/sys/kernel/debug"
@@ -94,11 +95,21 @@ int debugfs__strerror_open(int err, char *buf, size_t size, const char *filename
"Hint:\tIs the debugfs filesystem mounted?\n"
"Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
break;
- case EACCES:
+ case EACCES: {
+ const char *mountpoint = debugfs_mountpoint;
+
+ if (!access(debugfs_mountpoint, R_OK) && strncmp(filename, "tracing/", 8) == 0) {
+ const char *tracefs_mntpoint = tracefs_find_mountpoint();
+
+ if (tracefs_mntpoint)
+ mountpoint = tracefs_mntpoint;
+ }
+
snprintf(buf, size,
"Error:\tNo permissions to read %s/%s\n"
"Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
- debugfs_mountpoint, filename, debugfs_mountpoint);
+ debugfs_mountpoint, filename, mountpoint);
+ }
break;
default:
snprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
diff --git a/tools/lib/bpf/.gitignore b/tools/lib/bpf/.gitignore
new file mode 100644
index 000000000000..812aeedaea38
--- /dev/null
+++ b/tools/lib/bpf/.gitignore
@@ -0,0 +1,2 @@
+libbpf_version.h
+FEATURE-DUMP
diff --git a/tools/lib/bpf/Build b/tools/lib/bpf/Build
new file mode 100644
index 000000000000..d8749756352d
--- /dev/null
+++ b/tools/lib/bpf/Build
@@ -0,0 +1 @@
+libbpf-y := libbpf.o bpf.o
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
new file mode 100644
index 000000000000..f68d23a0b487
--- /dev/null
+++ b/tools/lib/bpf/Makefile
@@ -0,0 +1,195 @@
+# Most of this file is copied from tools/lib/traceevent/Makefile
+
+BPF_VERSION = 0
+BPF_PATCHLEVEL = 0
+BPF_EXTRAVERSION = 1
+
+MAKEFLAGS += --no-print-directory
+
+
+# Makefiles suck: This macro sets a default value of $(2) for the
+# variable named by $(1), unless the variable has been set by
+# environment or command line. This is necessary for CC and AR
+# because make sets default values, so the simpler ?= approach
+# won't work as expected.
+define allow-override
+ $(if $(or $(findstring environment,$(origin $(1))),\
+ $(findstring command line,$(origin $(1)))),,\
+ $(eval $(1) = $(2)))
+endef
+
+# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
+$(call allow-override,CC,$(CROSS_COMPILE)gcc)
+$(call allow-override,AR,$(CROSS_COMPILE)ar)
+
+INSTALL = install
+
+# Use DESTDIR for installing into a different root directory.
+# This is useful for building a package. The program will be
+# installed in this directory as if it was the root directory.
+# Then the build tool can move it later.
+DESTDIR ?=
+DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
+
+LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
+ifeq ($(LP64), 1)
+ libdir_relative = lib64
+else
+ libdir_relative = lib
+endif
+
+prefix ?= /usr/local
+libdir = $(prefix)/$(libdir_relative)
+man_dir = $(prefix)/share/man
+man_dir_SQ = '$(subst ','\'',$(man_dir))'
+
+export man_dir man_dir_SQ INSTALL
+export DESTDIR DESTDIR_SQ
+
+include ../../scripts/Makefile.include
+
+# copy a bit from Linux kbuild
+
+ifeq ("$(origin V)", "command line")
+ VERBOSE = $(V)
+endif
+ifndef VERBOSE
+ VERBOSE = 0
+endif
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
+FEATURE_DISPLAY = libelf libelf-getphdrnum libelf-mmap bpf
+FEATURE_TESTS = libelf bpf
+
+INCLUDES = -I. -I$(srctree)/tools/include -I$(srctree)/arch/$(ARCH)/include/uapi -I$(srctree)/include/uapi
+FEATURE_CHECK_CFLAGS-bpf = $(INCLUDES)
+
+include $(srctree)/tools/build/Makefile.feature
+
+export prefix libdir src obj
+
+# Shell quotes
+libdir_SQ = $(subst ','\'',$(libdir))
+libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
+plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
+
+LIB_FILE = libbpf.a libbpf.so
+
+VERSION = $(BPF_VERSION)
+PATCHLEVEL = $(BPF_PATCHLEVEL)
+EXTRAVERSION = $(BPF_EXTRAVERSION)
+
+OBJ = $@
+N =
+
+LIBBPF_VERSION = $(BPF_VERSION).$(BPF_PATCHLEVEL).$(BPF_EXTRAVERSION)
+
+# Set compile option CFLAGS
+ifdef EXTRA_CFLAGS
+ CFLAGS := $(EXTRA_CFLAGS)
+else
+ CFLAGS := -g -Wall
+endif
+
+ifeq ($(feature-libelf-mmap), 1)
+ override CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
+endif
+
+ifeq ($(feature-libelf-getphdrnum), 1)
+ override CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
+endif
+
+# Append required CFLAGS
+override CFLAGS += $(EXTRA_WARNINGS)
+override CFLAGS += -Werror -Wall
+override CFLAGS += -fPIC
+override CFLAGS += $(INCLUDES)
+
+ifeq ($(VERBOSE),1)
+ Q =
+else
+ Q = @
+endif
+
+# Disable command line variables (CFLAGS) overide from top
+# level Makefile (perf), otherwise build Makefile will get
+# the same command line setup.
+MAKEOVERRIDES=
+
+export srctree OUTPUT CC LD CFLAGS V
+build := -f $(srctree)/tools/build/Makefile.build dir=. obj
+
+BPF_IN := $(OUTPUT)libbpf-in.o
+LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
+
+CMD_TARGETS = $(LIB_FILE)
+
+TARGETS = $(CMD_TARGETS)
+
+all: $(VERSION_FILES) all_cmd
+
+all_cmd: $(CMD_TARGETS)
+
+$(BPF_IN): force elfdep bpfdep
+ $(Q)$(MAKE) $(build)=libbpf
+
+$(OUTPUT)libbpf.so: $(BPF_IN)
+ $(QUIET_LINK)$(CC) --shared $^ -o $@
+
+$(OUTPUT)libbpf.a: $(BPF_IN)
+ $(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
+
+define update_dir
+ (echo $1 > $@.tmp; \
+ if [ -r $@ ] && cmp -s $@ $@.tmp; then \
+ rm -f $@.tmp; \
+ else \
+ echo ' UPDATE $@'; \
+ mv -f $@.tmp $@; \
+ fi);
+endef
+
+define do_install
+ if [ ! -d '$(DESTDIR_SQ)$2' ]; then \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
+ fi; \
+ $(INSTALL) $1 '$(DESTDIR_SQ)$2'
+endef
+
+install_lib: all_cmd
+ $(call QUIET_INSTALL, $(LIB_FILE)) \
+ $(call do_install,$(LIB_FILE),$(libdir_SQ))
+
+install: install_lib
+
+### Cleaning rules
+
+config-clean:
+ $(call QUIET_CLEAN, config)
+ $(Q)$(MAKE) -C $(srctree)/tools/build/feature/ clean >/dev/null
+
+clean:
+ $(call QUIET_CLEAN, libbpf) $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
+ $(RM) LIBBPF-CFLAGS
+ $(call QUIET_CLEAN, core-gen) $(RM) $(OUTPUT)FEATURE-DUMP
+
+
+
+PHONY += force elfdep bpfdep
+force:
+
+elfdep:
+ @if [ "$(feature-libelf)" != "1" ]; then echo "No libelf found"; exit -1 ; fi
+
+bpfdep:
+ @if [ "$(feature-bpf)" != "1" ]; then echo "BPF API too old"; exit -1 ; fi
+
+# Declare the contents of the .PHONY variable as phony. We keep that
+# information in a variable so we can use it in if_changed and friends.
+.PHONY: $(PHONY)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
new file mode 100644
index 000000000000..a6331050ab79
--- /dev/null
+++ b/tools/lib/bpf/bpf.c
@@ -0,0 +1,85 @@
+/*
+ * common eBPF ELF operations.
+ *
+ * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
+ * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015 Huawei Inc.
+ */
+
+#include <stdlib.h>
+#include <memory.h>
+#include <unistd.h>
+#include <asm/unistd.h>
+#include <linux/bpf.h>
+#include "bpf.h"
+
+/*
+ * When building perf, unistd.h is override. Define __NR_bpf is
+ * required to be defined.
+ */
+#ifndef __NR_bpf
+# if defined(__i386__)
+# define __NR_bpf 357
+# elif defined(__x86_64__)
+# define __NR_bpf 321
+# elif defined(__aarch64__)
+# define __NR_bpf 280
+# else
+# error __NR_bpf not defined. libbpf does not support your arch.
+# endif
+#endif
+
+static __u64 ptr_to_u64(void *ptr)
+{
+ return (__u64) (unsigned long) ptr;
+}
+
+static int sys_bpf(enum bpf_cmd cmd, union bpf_attr *attr,
+ unsigned int size)
+{
+ return syscall(__NR_bpf, cmd, attr, size);
+}
+
+int bpf_create_map(enum bpf_map_type map_type, int key_size,
+ int value_size, int max_entries)
+{
+ union bpf_attr attr;
+
+ memset(&attr, '\0', sizeof(attr));
+
+ attr.map_type = map_type;
+ attr.key_size = key_size;
+ attr.value_size = value_size;
+ attr.max_entries = max_entries;
+
+ return sys_bpf(BPF_MAP_CREATE, &attr, sizeof(attr));
+}
+
+int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
+ size_t insns_cnt, char *license,
+ u32 kern_version, char *log_buf, size_t log_buf_sz)
+{
+ int fd;
+ union bpf_attr attr;
+
+ bzero(&attr, sizeof(attr));
+ attr.prog_type = type;
+ attr.insn_cnt = (__u32)insns_cnt;
+ attr.insns = ptr_to_u64(insns);
+ attr.license = ptr_to_u64(license);
+ attr.log_buf = ptr_to_u64(NULL);
+ attr.log_size = 0;
+ attr.log_level = 0;
+ attr.kern_version = kern_version;
+
+ fd = sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
+ if (fd >= 0 || !log_buf || !log_buf_sz)
+ return fd;
+
+ /* Try again with log */
+ attr.log_buf = ptr_to_u64(log_buf);
+ attr.log_size = log_buf_sz;
+ attr.log_level = 1;
+ log_buf[0] = 0;
+ return sys_bpf(BPF_PROG_LOAD, &attr, sizeof(attr));
+}
diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h
new file mode 100644
index 000000000000..854b7361b784
--- /dev/null
+++ b/tools/lib/bpf/bpf.h
@@ -0,0 +1,23 @@
+/*
+ * common eBPF ELF operations.
+ *
+ * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
+ * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015 Huawei Inc.
+ */
+#ifndef __BPF_BPF_H
+#define __BPF_BPF_H
+
+#include <linux/bpf.h>
+
+int bpf_create_map(enum bpf_map_type map_type, int key_size, int value_size,
+ int max_entries);
+
+/* Recommend log buffer size */
+#define BPF_LOG_BUF_SIZE 65536
+int bpf_load_program(enum bpf_prog_type type, struct bpf_insn *insns,
+ size_t insns_cnt, char *license,
+ u32 kern_version, char *log_buf,
+ size_t log_buf_sz);
+
+#endif
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
new file mode 100644
index 000000000000..4fa4bc4505f5
--- /dev/null
+++ b/tools/lib/bpf/libbpf.c
@@ -0,0 +1,1037 @@
+/*
+ * Common eBPF ELF object loading operations.
+ *
+ * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
+ * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015 Huawei Inc.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <asm/unistd.h>
+#include <linux/kernel.h>
+#include <linux/bpf.h>
+#include <linux/list.h>
+#include <libelf.h>
+#include <gelf.h>
+
+#include "libbpf.h"
+#include "bpf.h"
+
+#define __printf(a, b) __attribute__((format(printf, a, b)))
+
+__printf(1, 2)
+static int __base_pr(const char *format, ...)
+{
+ va_list args;
+ int err;
+
+ va_start(args, format);
+ err = vfprintf(stderr, format, args);
+ va_end(args);
+ return err;
+}
+
+static __printf(1, 2) libbpf_print_fn_t __pr_warning = __base_pr;
+static __printf(1, 2) libbpf_print_fn_t __pr_info = __base_pr;
+static __printf(1, 2) libbpf_print_fn_t __pr_debug;
+
+#define __pr(func, fmt, ...) \
+do { \
+ if ((func)) \
+ (func)("libbpf: " fmt, ##__VA_ARGS__); \
+} while (0)
+
+#define pr_warning(fmt, ...) __pr(__pr_warning, fmt, ##__VA_ARGS__)
+#define pr_info(fmt, ...) __pr(__pr_info, fmt, ##__VA_ARGS__)
+#define pr_debug(fmt, ...) __pr(__pr_debug, fmt, ##__VA_ARGS__)
+
+void libbpf_set_print(libbpf_print_fn_t warn,
+ libbpf_print_fn_t info,
+ libbpf_print_fn_t debug)
+{
+ __pr_warning = warn;
+ __pr_info = info;
+ __pr_debug = debug;
+}
+
+/* Copied from tools/perf/util/util.h */
+#ifndef zfree
+# define zfree(ptr) ({ free(*ptr); *ptr = NULL; })
+#endif
+
+#ifndef zclose
+# define zclose(fd) ({ \
+ int ___err = 0; \
+ if ((fd) >= 0) \
+ ___err = close((fd)); \
+ fd = -1; \
+ ___err; })
+#endif
+
+#ifdef HAVE_LIBELF_MMAP_SUPPORT
+# define LIBBPF_ELF_C_READ_MMAP ELF_C_READ_MMAP
+#else
+# define LIBBPF_ELF_C_READ_MMAP ELF_C_READ
+#endif
+
+/*
+ * bpf_prog should be a better name but it has been used in
+ * linux/filter.h.
+ */
+struct bpf_program {
+ /* Index in elf obj file, for relocation use. */
+ int idx;
+ char *section_name;
+ struct bpf_insn *insns;
+ size_t insns_cnt;
+
+ struct {
+ int insn_idx;
+ int map_idx;
+ } *reloc_desc;
+ int nr_reloc;
+
+ int fd;
+
+ struct bpf_object *obj;
+ void *priv;
+ bpf_program_clear_priv_t clear_priv;
+};
+
+static LIST_HEAD(bpf_objects_list);
+
+struct bpf_object {
+ char license[64];
+ u32 kern_version;
+ void *maps_buf;
+ size_t maps_buf_sz;
+
+ struct bpf_program *programs;
+ size_t nr_programs;
+ int *map_fds;
+ /*
+ * This field is required because maps_buf will be freed and
+ * maps_buf_sz will be set to 0 after loaded.
+ */
+ size_t nr_map_fds;
+ bool loaded;
+
+ /*
+ * Information when doing elf related work. Only valid if fd
+ * is valid.
+ */
+ struct {
+ int fd;
+ void *obj_buf;
+ size_t obj_buf_sz;
+ Elf *elf;
+ GElf_Ehdr ehdr;
+ Elf_Data *symbols;
+ struct {
+ GElf_Shdr shdr;
+ Elf_Data *data;
+ } *reloc;
+ int nr_reloc;
+ } efile;
+ /*
+ * All loaded bpf_object is linked in a list, which is
+ * hidden to caller. bpf_objects__<func> handlers deal with
+ * all objects.
+ */
+ struct list_head list;
+ char path[];
+};
+#define obj_elf_valid(o) ((o)->efile.elf)
+
+static void bpf_program__unload(struct bpf_program *prog)
+{
+ if (!prog)
+ return;
+
+ zclose(prog->fd);
+}
+
+static void bpf_program__exit(struct bpf_program *prog)
+{
+ if (!prog)
+ return;
+
+ if (prog->clear_priv)
+ prog->clear_priv(prog, prog->priv);
+
+ prog->priv = NULL;
+ prog->clear_priv = NULL;
+
+ bpf_program__unload(prog);
+ zfree(&prog->section_name);
+ zfree(&prog->insns);
+ zfree(&prog->reloc_desc);
+
+ prog->nr_reloc = 0;
+ prog->insns_cnt = 0;
+ prog->idx = -1;
+}
+
+static int
+bpf_program__init(void *data, size_t size, char *name, int idx,
+ struct bpf_program *prog)
+{
+ if (size < sizeof(struct bpf_insn)) {
+ pr_warning("corrupted section '%s'\n", name);
+ return -EINVAL;
+ }
+
+ bzero(prog, sizeof(*prog));
+
+ prog->section_name = strdup(name);
+ if (!prog->section_name) {
+ pr_warning("failed to alloc name for prog %s\n",
+ name);
+ goto errout;
+ }
+
+ prog->insns = malloc(size);
+ if (!prog->insns) {
+ pr_warning("failed to alloc insns for %s\n", name);
+ goto errout;
+ }
+ prog->insns_cnt = size / sizeof(struct bpf_insn);
+ memcpy(prog->insns, data,
+ prog->insns_cnt * sizeof(struct bpf_insn));
+ prog->idx = idx;
+ prog->fd = -1;
+
+ return 0;
+errout:
+ bpf_program__exit(prog);
+ return -ENOMEM;
+}
+
+static int
+bpf_object__add_program(struct bpf_object *obj, void *data, size_t size,
+ char *name, int idx)
+{
+ struct bpf_program prog, *progs;
+ int nr_progs, err;
+
+ err = bpf_program__init(data, size, name, idx, &prog);
+ if (err)
+ return err;
+
+ progs = obj->programs;
+ nr_progs = obj->nr_programs;
+
+ progs = realloc(progs, sizeof(progs[0]) * (nr_progs + 1));
+ if (!progs) {
+ /*
+ * In this case the original obj->programs
+ * is still valid, so don't need special treat for
+ * bpf_close_object().
+ */
+ pr_warning("failed to alloc a new program '%s'\n",
+ name);
+ bpf_program__exit(&prog);
+ return -ENOMEM;
+ }
+
+ pr_debug("found program %s\n", prog.section_name);
+ obj->programs = progs;
+ obj->nr_programs = nr_progs + 1;
+ prog.obj = obj;
+ progs[nr_progs] = prog;
+ return 0;
+}
+
+static struct bpf_object *bpf_object__new(const char *path,
+ void *obj_buf,
+ size_t obj_buf_sz)
+{
+ struct bpf_object *obj;
+
+ obj = calloc(1, sizeof(struct bpf_object) + strlen(path) + 1);
+ if (!obj) {
+ pr_warning("alloc memory failed for %s\n", path);
+ return NULL;
+ }
+
+ strcpy(obj->path, path);
+ obj->efile.fd = -1;
+
+ /*
+ * Caller of this function should also calls
+ * bpf_object__elf_finish() after data collection to return
+ * obj_buf to user. If not, we should duplicate the buffer to
+ * avoid user freeing them before elf finish.
+ */
+ obj->efile.obj_buf = obj_buf;
+ obj->efile.obj_buf_sz = obj_buf_sz;
+
+ obj->loaded = false;
+
+ INIT_LIST_HEAD(&obj->list);
+ list_add(&obj->list, &bpf_objects_list);
+ return obj;
+}
+
+static void bpf_object__elf_finish(struct bpf_object *obj)
+{
+ if (!obj_elf_valid(obj))
+ return;
+
+ if (obj->efile.elf) {
+ elf_end(obj->efile.elf);
+ obj->efile.elf = NULL;
+ }
+ obj->efile.symbols = NULL;
+
+ zfree(&obj->efile.reloc);
+ obj->efile.nr_reloc = 0;
+ zclose(obj->efile.fd);
+ obj->efile.obj_buf = NULL;
+ obj->efile.obj_buf_sz = 0;
+}
+
+static int bpf_object__elf_init(struct bpf_object *obj)
+{
+ int err = 0;
+ GElf_Ehdr *ep;
+
+ if (obj_elf_valid(obj)) {
+ pr_warning("elf init: internal error\n");
+ return -EEXIST;
+ }
+
+ if (obj->efile.obj_buf_sz > 0) {
+ /*
+ * obj_buf should have been validated by
+ * bpf_object__open_buffer().
+ */
+ obj->efile.elf = elf_memory(obj->efile.obj_buf,
+ obj->efile.obj_buf_sz);
+ } else {
+ obj->efile.fd = open(obj->path, O_RDONLY);
+ if (obj->efile.fd < 0) {
+ pr_warning("failed to open %s: %s\n", obj->path,
+ strerror(errno));
+ return -errno;
+ }
+
+ obj->efile.elf = elf_begin(obj->efile.fd,
+ LIBBPF_ELF_C_READ_MMAP,
+ NULL);
+ }
+
+ if (!obj->efile.elf) {
+ pr_warning("failed to open %s as ELF file\n",
+ obj->path);
+ err = -EINVAL;
+ goto errout;
+ }
+
+ if (!gelf_getehdr(obj->efile.elf, &obj->efile.ehdr)) {
+ pr_warning("failed to get EHDR from %s\n",
+ obj->path);
+ err = -EINVAL;
+ goto errout;
+ }
+ ep = &obj->efile.ehdr;
+
+ if ((ep->e_type != ET_REL) || (ep->e_machine != 0)) {
+ pr_warning("%s is not an eBPF object file\n",
+ obj->path);
+ err = -EINVAL;
+ goto errout;
+ }
+
+ return 0;
+errout:
+ bpf_object__elf_finish(obj);
+ return err;
+}
+
+static int
+bpf_object__check_endianness(struct bpf_object *obj)
+{
+ static unsigned int const endian = 1;
+
+ switch (obj->efile.ehdr.e_ident[EI_DATA]) {
+ case ELFDATA2LSB:
+ /* We are big endian, BPF obj is little endian. */
+ if (*(unsigned char const *)&endian != 1)
+ goto mismatch;
+ break;
+
+ case ELFDATA2MSB:
+ /* We are little endian, BPF obj is big endian. */
+ if (*(unsigned char const *)&endian != 0)
+ goto mismatch;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+
+mismatch:
+ pr_warning("Error: endianness mismatch.\n");
+ return -EINVAL;
+}
+
+static int
+bpf_object__init_license(struct bpf_object *obj,
+ void *data, size_t size)
+{
+ memcpy(obj->license, data,
+ min(size, sizeof(obj->license) - 1));
+ pr_debug("license of %s is %s\n", obj->path, obj->license);
+ return 0;
+}
+
+static int
+bpf_object__init_kversion(struct bpf_object *obj,
+ void *data, size_t size)
+{
+ u32 kver;
+
+ if (size != sizeof(kver)) {
+ pr_warning("invalid kver section in %s\n", obj->path);
+ return -EINVAL;
+ }
+ memcpy(&kver, data, sizeof(kver));
+ obj->kern_version = kver;
+ pr_debug("kernel version of %s is %x\n", obj->path,
+ obj->kern_version);
+ return 0;
+}
+
+static int
+bpf_object__init_maps(struct bpf_object *obj, void *data,
+ size_t size)
+{
+ if (size == 0) {
+ pr_debug("%s doesn't need map definition\n",
+ obj->path);
+ return 0;
+ }
+
+ obj->maps_buf = malloc(size);
+ if (!obj->maps_buf) {
+ pr_warning("malloc maps failed: %s\n", obj->path);
+ return -ENOMEM;
+ }
+
+ obj->maps_buf_sz = size;
+ memcpy(obj->maps_buf, data, size);
+ pr_debug("maps in %s: %ld bytes\n", obj->path, (long)size);
+ return 0;
+}
+
+static int bpf_object__elf_collect(struct bpf_object *obj)
+{
+ Elf *elf = obj->efile.elf;
+ GElf_Ehdr *ep = &obj->efile.ehdr;
+ Elf_Scn *scn = NULL;
+ int idx = 0, err = 0;
+
+ /* Elf is corrupted/truncated, avoid calling elf_strptr. */
+ if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL)) {
+ pr_warning("failed to get e_shstrndx from %s\n",
+ obj->path);
+ return -EINVAL;
+ }
+
+ while ((scn = elf_nextscn(elf, scn)) != NULL) {
+ char *name;
+ GElf_Shdr sh;
+ Elf_Data *data;
+
+ idx++;
+ if (gelf_getshdr(scn, &sh) != &sh) {
+ pr_warning("failed to get section header from %s\n",
+ obj->path);
+ err = -EINVAL;
+ goto out;
+ }
+
+ name = elf_strptr(elf, ep->e_shstrndx, sh.sh_name);
+ if (!name) {
+ pr_warning("failed to get section name from %s\n",
+ obj->path);
+ err = -EINVAL;
+ goto out;
+ }
+
+ data = elf_getdata(scn, 0);
+ if (!data) {
+ pr_warning("failed to get section data from %s(%s)\n",
+ name, obj->path);
+ err = -EINVAL;
+ goto out;
+ }
+ pr_debug("section %s, size %ld, link %d, flags %lx, type=%d\n",
+ name, (unsigned long)data->d_size,
+ (int)sh.sh_link, (unsigned long)sh.sh_flags,
+ (int)sh.sh_type);
+
+ if (strcmp(name, "license") == 0)
+ err = bpf_object__init_license(obj,
+ data->d_buf,
+ data->d_size);
+ else if (strcmp(name, "version") == 0)
+ err = bpf_object__init_kversion(obj,
+ data->d_buf,
+ data->d_size);
+ else if (strcmp(name, "maps") == 0)
+ err = bpf_object__init_maps(obj, data->d_buf,
+ data->d_size);
+ else if (sh.sh_type == SHT_SYMTAB) {
+ if (obj->efile.symbols) {
+ pr_warning("bpf: multiple SYMTAB in %s\n",
+ obj->path);
+ err = -EEXIST;
+ } else
+ obj->efile.symbols = data;
+ } else if ((sh.sh_type == SHT_PROGBITS) &&
+ (sh.sh_flags & SHF_EXECINSTR) &&
+ (data->d_size > 0)) {
+ err = bpf_object__add_program(obj, data->d_buf,
+ data->d_size, name, idx);
+ if (err) {
+ char errmsg[128];
+ strerror_r(-err, errmsg, sizeof(errmsg));
+ pr_warning("failed to alloc program %s (%s): %s",
+ name, obj->path, errmsg);
+ }
+ } else if (sh.sh_type == SHT_REL) {
+ void *reloc = obj->efile.reloc;
+ int nr_reloc = obj->efile.nr_reloc + 1;
+
+ reloc = realloc(reloc,
+ sizeof(*obj->efile.reloc) * nr_reloc);
+ if (!reloc) {
+ pr_warning("realloc failed\n");
+ err = -ENOMEM;
+ } else {
+ int n = nr_reloc - 1;
+
+ obj->efile.reloc = reloc;
+ obj->efile.nr_reloc = nr_reloc;
+
+ obj->efile.reloc[n].shdr = sh;
+ obj->efile.reloc[n].data = data;
+ }
+ }
+ if (err)
+ goto out;
+ }
+out:
+ return err;
+}
+
+static struct bpf_program *
+bpf_object__find_prog_by_idx(struct bpf_object *obj, int idx)
+{
+ struct bpf_program *prog;
+ size_t i;
+
+ for (i = 0; i < obj->nr_programs; i++) {
+ prog = &obj->programs[i];
+ if (prog->idx == idx)
+ return prog;
+ }
+ return NULL;
+}
+
+static int
+bpf_program__collect_reloc(struct bpf_program *prog,
+ size_t nr_maps, GElf_Shdr *shdr,
+ Elf_Data *data, Elf_Data *symbols)
+{
+ int i, nrels;
+
+ pr_debug("collecting relocating info for: '%s'\n",
+ prog->section_name);
+ nrels = shdr->sh_size / shdr->sh_entsize;
+
+ prog->reloc_desc = malloc(sizeof(*prog->reloc_desc) * nrels);
+ if (!prog->reloc_desc) {
+ pr_warning("failed to alloc memory in relocation\n");
+ return -ENOMEM;
+ }
+ prog->nr_reloc = nrels;
+
+ for (i = 0; i < nrels; i++) {
+ GElf_Sym sym;
+ GElf_Rel rel;
+ unsigned int insn_idx;
+ struct bpf_insn *insns = prog->insns;
+ size_t map_idx;
+
+ if (!gelf_getrel(data, i, &rel)) {
+ pr_warning("relocation: failed to get %d reloc\n", i);
+ return -EINVAL;
+ }
+
+ insn_idx = rel.r_offset / sizeof(struct bpf_insn);
+ pr_debug("relocation: insn_idx=%u\n", insn_idx);
+
+ if (!gelf_getsym(symbols,
+ GELF_R_SYM(rel.r_info),
+ &sym)) {
+ pr_warning("relocation: symbol %"PRIx64" not found\n",
+ GELF_R_SYM(rel.r_info));
+ return -EINVAL;
+ }
+
+ if (insns[insn_idx].code != (BPF_LD | BPF_IMM | BPF_DW)) {
+ pr_warning("bpf: relocation: invalid relo for insns[%d].code 0x%x\n",
+ insn_idx, insns[insn_idx].code);
+ return -EINVAL;
+ }
+
+ map_idx = sym.st_value / sizeof(struct bpf_map_def);
+ if (map_idx >= nr_maps) {
+ pr_warning("bpf relocation: map_idx %d large than %d\n",
+ (int)map_idx, (int)nr_maps - 1);
+ return -EINVAL;
+ }
+
+ prog->reloc_desc[i].insn_idx = insn_idx;
+ prog->reloc_desc[i].map_idx = map_idx;
+ }
+ return 0;
+}
+
+static int
+bpf_object__create_maps(struct bpf_object *obj)
+{
+ unsigned int i;
+ size_t nr_maps;
+ int *pfd;
+
+ nr_maps = obj->maps_buf_sz / sizeof(struct bpf_map_def);
+ if (!obj->maps_buf || !nr_maps) {
+ pr_debug("don't need create maps for %s\n",
+ obj->path);
+ return 0;
+ }
+
+ obj->map_fds = malloc(sizeof(int) * nr_maps);
+ if (!obj->map_fds) {
+ pr_warning("realloc perf_bpf_map_fds failed\n");
+ return -ENOMEM;
+ }
+ obj->nr_map_fds = nr_maps;
+
+ /* fill all fd with -1 */
+ memset(obj->map_fds, -1, sizeof(int) * nr_maps);
+
+ pfd = obj->map_fds;
+ for (i = 0; i < nr_maps; i++) {
+ struct bpf_map_def def;
+
+ def = *(struct bpf_map_def *)(obj->maps_buf +
+ i * sizeof(struct bpf_map_def));
+
+ *pfd = bpf_create_map(def.type,
+ def.key_size,
+ def.value_size,
+ def.max_entries);
+ if (*pfd < 0) {
+ size_t j;
+ int err = *pfd;
+
+ pr_warning("failed to create map: %s\n",
+ strerror(errno));
+ for (j = 0; j < i; j++)
+ zclose(obj->map_fds[j]);
+ obj->nr_map_fds = 0;
+ zfree(&obj->map_fds);
+ return err;
+ }
+ pr_debug("create map: fd=%d\n", *pfd);
+ pfd++;
+ }
+
+ zfree(&obj->maps_buf);
+ obj->maps_buf_sz = 0;
+ return 0;
+}
+
+static int
+bpf_program__relocate(struct bpf_program *prog, int *map_fds)
+{
+ int i;
+
+ if (!prog || !prog->reloc_desc)
+ return 0;
+
+ for (i = 0; i < prog->nr_reloc; i++) {
+ int insn_idx, map_idx;
+ struct bpf_insn *insns = prog->insns;
+
+ insn_idx = prog->reloc_desc[i].insn_idx;
+ map_idx = prog->reloc_desc[i].map_idx;
+
+ if (insn_idx >= (int)prog->insns_cnt) {
+ pr_warning("relocation out of range: '%s'\n",
+ prog->section_name);
+ return -ERANGE;
+ }
+ insns[insn_idx].src_reg = BPF_PSEUDO_MAP_FD;
+ insns[insn_idx].imm = map_fds[map_idx];
+ }
+
+ zfree(&prog->reloc_desc);
+ prog->nr_reloc = 0;
+ return 0;
+}
+
+
+static int
+bpf_object__relocate(struct bpf_object *obj)
+{
+ struct bpf_program *prog;
+ size_t i;
+ int err;
+
+ for (i = 0; i < obj->nr_programs; i++) {
+ prog = &obj->programs[i];
+
+ err = bpf_program__relocate(prog, obj->map_fds);
+ if (err) {
+ pr_warning("failed to relocate '%s'\n",
+ prog->section_name);
+ return err;
+ }
+ }
+ return 0;
+}
+
+static int bpf_object__collect_reloc(struct bpf_object *obj)
+{
+ int i, err;
+
+ if (!obj_elf_valid(obj)) {
+ pr_warning("Internal error: elf object is closed\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < obj->efile.nr_reloc; i++) {
+ GElf_Shdr *shdr = &obj->efile.reloc[i].shdr;
+ Elf_Data *data = obj->efile.reloc[i].data;
+ int idx = shdr->sh_info;
+ struct bpf_program *prog;
+ size_t nr_maps = obj->maps_buf_sz /
+ sizeof(struct bpf_map_def);
+
+ if (shdr->sh_type != SHT_REL) {
+ pr_warning("internal error at %d\n", __LINE__);
+ return -EINVAL;
+ }
+
+ prog = bpf_object__find_prog_by_idx(obj, idx);
+ if (!prog) {
+ pr_warning("relocation failed: no %d section\n",
+ idx);
+ return -ENOENT;
+ }
+
+ err = bpf_program__collect_reloc(prog, nr_maps,
+ shdr, data,
+ obj->efile.symbols);
+ if (err)
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int
+load_program(struct bpf_insn *insns, int insns_cnt,
+ char *license, u32 kern_version, int *pfd)
+{
+ int ret;
+ char *log_buf;
+
+ if (!insns || !insns_cnt)
+ return -EINVAL;
+
+ log_buf = malloc(BPF_LOG_BUF_SIZE);
+ if (!log_buf)
+ pr_warning("Alloc log buffer for bpf loader error, continue without log\n");
+
+ ret = bpf_load_program(BPF_PROG_TYPE_KPROBE, insns,
+ insns_cnt, license, kern_version,
+ log_buf, BPF_LOG_BUF_SIZE);
+
+ if (ret >= 0) {
+ *pfd = ret;
+ ret = 0;
+ goto out;
+ }
+
+ ret = -EINVAL;
+ pr_warning("load bpf program failed: %s\n", strerror(errno));
+
+ if (log_buf) {
+ pr_warning("-- BEGIN DUMP LOG ---\n");
+ pr_warning("\n%s\n", log_buf);
+ pr_warning("-- END LOG --\n");
+ }
+
+out:
+ free(log_buf);
+ return ret;
+}
+
+static int
+bpf_program__load(struct bpf_program *prog,
+ char *license, u32 kern_version)
+{
+ int err, fd;
+
+ err = load_program(prog->insns, prog->insns_cnt,
+ license, kern_version, &fd);
+ if (!err)
+ prog->fd = fd;
+
+ if (err)
+ pr_warning("failed to load program '%s'\n",
+ prog->section_name);
+ zfree(&prog->insns);
+ prog->insns_cnt = 0;
+ return err;
+}
+
+static int
+bpf_object__load_progs(struct bpf_object *obj)
+{
+ size_t i;
+ int err;
+
+ for (i = 0; i < obj->nr_programs; i++) {
+ err = bpf_program__load(&obj->programs[i],
+ obj->license,
+ obj->kern_version);
+ if (err)
+ return err;
+ }
+ return 0;
+}
+
+static int bpf_object__validate(struct bpf_object *obj)
+{
+ if (obj->kern_version == 0) {
+ pr_warning("%s doesn't provide kernel version\n",
+ obj->path);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static struct bpf_object *
+__bpf_object__open(const char *path, void *obj_buf, size_t obj_buf_sz)
+{
+ struct bpf_object *obj;
+
+ if (elf_version(EV_CURRENT) == EV_NONE) {
+ pr_warning("failed to init libelf for %s\n", path);
+ return NULL;
+ }
+
+ obj = bpf_object__new(path, obj_buf, obj_buf_sz);
+ if (!obj)
+ return NULL;
+
+ if (bpf_object__elf_init(obj))
+ goto out;
+ if (bpf_object__check_endianness(obj))
+ goto out;
+ if (bpf_object__elf_collect(obj))
+ goto out;
+ if (bpf_object__collect_reloc(obj))
+ goto out;
+ if (bpf_object__validate(obj))
+ goto out;
+
+ bpf_object__elf_finish(obj);
+ return obj;
+out:
+ bpf_object__close(obj);
+ return NULL;
+}
+
+struct bpf_object *bpf_object__open(const char *path)
+{
+ /* param validation */
+ if (!path)
+ return NULL;
+
+ pr_debug("loading %s\n", path);
+
+ return __bpf_object__open(path, NULL, 0);
+}
+
+struct bpf_object *bpf_object__open_buffer(void *obj_buf,
+ size_t obj_buf_sz)
+{
+ /* param validation */
+ if (!obj_buf || obj_buf_sz <= 0)
+ return NULL;
+
+ pr_debug("loading object from buffer\n");
+
+ return __bpf_object__open("[buffer]", obj_buf, obj_buf_sz);
+}
+
+int bpf_object__unload(struct bpf_object *obj)
+{
+ size_t i;
+
+ if (!obj)
+ return -EINVAL;
+
+ for (i = 0; i < obj->nr_map_fds; i++)
+ zclose(obj->map_fds[i]);
+ zfree(&obj->map_fds);
+ obj->nr_map_fds = 0;
+
+ for (i = 0; i < obj->nr_programs; i++)
+ bpf_program__unload(&obj->programs[i]);
+
+ return 0;
+}
+
+int bpf_object__load(struct bpf_object *obj)
+{
+ if (!obj)
+ return -EINVAL;
+
+ if (obj->loaded) {
+ pr_warning("object should not be loaded twice\n");
+ return -EINVAL;
+ }
+
+ obj->loaded = true;
+ if (bpf_object__create_maps(obj))
+ goto out;
+ if (bpf_object__relocate(obj))
+ goto out;
+ if (bpf_object__load_progs(obj))
+ goto out;
+
+ return 0;
+out:
+ bpf_object__unload(obj);
+ pr_warning("failed to load object '%s'\n", obj->path);
+ return -EINVAL;
+}
+
+void bpf_object__close(struct bpf_object *obj)
+{
+ size_t i;
+
+ if (!obj)
+ return;
+
+ bpf_object__elf_finish(obj);
+ bpf_object__unload(obj);
+
+ zfree(&obj->maps_buf);
+
+ if (obj->programs && obj->nr_programs) {
+ for (i = 0; i < obj->nr_programs; i++)
+ bpf_program__exit(&obj->programs[i]);
+ }
+ zfree(&obj->programs);
+
+ list_del(&obj->list);
+ free(obj);
+}
+
+struct bpf_object *
+bpf_object__next(struct bpf_object *prev)
+{
+ struct bpf_object *next;
+
+ if (!prev)
+ next = list_first_entry(&bpf_objects_list,
+ struct bpf_object,
+ list);
+ else
+ next = list_next_entry(prev, list);
+
+ /* Empty list is noticed here so don't need checking on entry. */
+ if (&next->list == &bpf_objects_list)
+ return NULL;
+
+ return next;
+}
+
+struct bpf_program *
+bpf_program__next(struct bpf_program *prev, struct bpf_object *obj)
+{
+ size_t idx;
+
+ if (!obj->programs)
+ return NULL;
+ /* First handler */
+ if (prev == NULL)
+ return &obj->programs[0];
+
+ if (prev->obj != obj) {
+ pr_warning("error: program handler doesn't match object\n");
+ return NULL;
+ }
+
+ idx = (prev - obj->programs) + 1;
+ if (idx >= obj->nr_programs)
+ return NULL;
+ return &obj->programs[idx];
+}
+
+int bpf_program__set_private(struct bpf_program *prog,
+ void *priv,
+ bpf_program_clear_priv_t clear_priv)
+{
+ if (prog->priv && prog->clear_priv)
+ prog->clear_priv(prog, prog->priv);
+
+ prog->priv = priv;
+ prog->clear_priv = clear_priv;
+ return 0;
+}
+
+int bpf_program__get_private(struct bpf_program *prog, void **ppriv)
+{
+ *ppriv = prog->priv;
+ return 0;
+}
+
+const char *bpf_program__title(struct bpf_program *prog, bool dup)
+{
+ const char *title;
+
+ title = prog->section_name;
+ if (dup) {
+ title = strdup(title);
+ if (!title) {
+ pr_warning("failed to strdup program title\n");
+ return NULL;
+ }
+ }
+
+ return title;
+}
+
+int bpf_program__fd(struct bpf_program *prog)
+{
+ return prog->fd;
+}
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h
new file mode 100644
index 000000000000..ea8adc206b62
--- /dev/null
+++ b/tools/lib/bpf/libbpf.h
@@ -0,0 +1,81 @@
+/*
+ * Common eBPF ELF object loading operations.
+ *
+ * Copyright (C) 2013-2015 Alexei Starovoitov <ast@kernel.org>
+ * Copyright (C) 2015 Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015 Huawei Inc.
+ */
+#ifndef __BPF_LIBBPF_H
+#define __BPF_LIBBPF_H
+
+#include <stdio.h>
+#include <stdbool.h>
+
+/*
+ * In include/linux/compiler-gcc.h, __printf is defined. However
+ * it should be better if libbpf.h doesn't depend on Linux header file.
+ * So instead of __printf, here we use gcc attribute directly.
+ */
+typedef int (*libbpf_print_fn_t)(const char *, ...)
+ __attribute__((format(printf, 1, 2)));
+
+void libbpf_set_print(libbpf_print_fn_t warn,
+ libbpf_print_fn_t info,
+ libbpf_print_fn_t debug);
+
+/* Hide internal to user */
+struct bpf_object;
+
+struct bpf_object *bpf_object__open(const char *path);
+struct bpf_object *bpf_object__open_buffer(void *obj_buf,
+ size_t obj_buf_sz);
+void bpf_object__close(struct bpf_object *object);
+
+/* Load/unload object into/from kernel */
+int bpf_object__load(struct bpf_object *obj);
+int bpf_object__unload(struct bpf_object *obj);
+
+struct bpf_object *bpf_object__next(struct bpf_object *prev);
+#define bpf_object__for_each_safe(pos, tmp) \
+ for ((pos) = bpf_object__next(NULL), \
+ (tmp) = bpf_object__next(pos); \
+ (pos) != NULL; \
+ (pos) = (tmp), (tmp) = bpf_object__next(tmp))
+
+/* Accessors of bpf_program. */
+struct bpf_program;
+struct bpf_program *bpf_program__next(struct bpf_program *prog,
+ struct bpf_object *obj);
+
+#define bpf_object__for_each_program(pos, obj) \
+ for ((pos) = bpf_program__next(NULL, (obj)); \
+ (pos) != NULL; \
+ (pos) = bpf_program__next((pos), (obj)))
+
+typedef void (*bpf_program_clear_priv_t)(struct bpf_program *,
+ void *);
+
+int bpf_program__set_private(struct bpf_program *prog, void *priv,
+ bpf_program_clear_priv_t clear_priv);
+
+int bpf_program__get_private(struct bpf_program *prog,
+ void **ppriv);
+
+const char *bpf_program__title(struct bpf_program *prog, bool dup);
+
+int bpf_program__fd(struct bpf_program *prog);
+
+/*
+ * We don't need __attribute__((packed)) now since it is
+ * unnecessary for 'bpf_map_def' because they are all aligned.
+ * In addition, using it will trigger -Wpacked warning message,
+ * and will be treated as an error due to -Werror.
+ */
+struct bpf_map_def {
+ unsigned int type;
+ unsigned int key_size;
+ unsigned int value_size;
+ unsigned int max_entries;
+};
+
+#endif
diff --git a/tools/lib/lockdep/preload.c b/tools/lib/lockdep/preload.c
index 0b0112c80f22..21cdf869a01b 100644
--- a/tools/lib/lockdep/preload.c
+++ b/tools/lib/lockdep/preload.c
@@ -5,7 +5,7 @@
#include <stdlib.h>
#include <sysexits.h>
#include "include/liblockdep/mutex.h"
-#include "../../../include/linux/rbtree.h"
+#include "../../include/linux/rbtree.h"
/**
* struct lock_lookup - liblockdep's view of a single unique lock
diff --git a/tools/lib/lockdep/uinclude/linux/kernel.h b/tools/lib/lockdep/uinclude/linux/kernel.h
index cd2cc59a5da7..276c7a8b2ed1 100644
--- a/tools/lib/lockdep/uinclude/linux/kernel.h
+++ b/tools/lib/lockdep/uinclude/linux/kernel.h
@@ -23,7 +23,7 @@
#define WARN_ON(x) (x)
#define WARN_ON_ONCE(x) (x)
#define likely(x) (x)
-#define WARN(x, y, z) (x)
+#define WARN(x, y...) (x)
#define uninitialized_var(x) x
#define __init
#define noinline
diff --git a/tools/lib/lockdep/uinclude/linux/rbtree.h b/tools/lib/lockdep/uinclude/linux/rbtree.h
deleted file mode 100644
index 965901db4862..000000000000
--- a/tools/lib/lockdep/uinclude/linux/rbtree.h
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../include/linux/rbtree.h"
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index cc25f059ab3d..4d885934b919 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -418,7 +418,7 @@ static int func_map_init(struct pevent *pevent)
}
static struct func_map *
-find_func(struct pevent *pevent, unsigned long long addr)
+__find_func(struct pevent *pevent, unsigned long long addr)
{
struct func_map *func;
struct func_map key;
@@ -434,6 +434,71 @@ find_func(struct pevent *pevent, unsigned long long addr)
return func;
}
+struct func_resolver {
+ pevent_func_resolver_t *func;
+ void *priv;
+ struct func_map map;
+};
+
+/**
+ * pevent_set_function_resolver - set an alternative function resolver
+ * @pevent: handle for the pevent
+ * @resolver: function to be used
+ * @priv: resolver function private state.
+ *
+ * Some tools may have already a way to resolve kernel functions, allow them to
+ * keep using it instead of duplicating all the entries inside
+ * pevent->funclist.
+ */
+int pevent_set_function_resolver(struct pevent *pevent,
+ pevent_func_resolver_t *func, void *priv)
+{
+ struct func_resolver *resolver = malloc(sizeof(*resolver));
+
+ if (resolver == NULL)
+ return -1;
+
+ resolver->func = func;
+ resolver->priv = priv;
+
+ free(pevent->func_resolver);
+ pevent->func_resolver = resolver;
+
+ return 0;
+}
+
+/**
+ * pevent_reset_function_resolver - reset alternative function resolver
+ * @pevent: handle for the pevent
+ *
+ * Stop using whatever alternative resolver was set, use the default
+ * one instead.
+ */
+void pevent_reset_function_resolver(struct pevent *pevent)
+{
+ free(pevent->func_resolver);
+ pevent->func_resolver = NULL;
+}
+
+static struct func_map *
+find_func(struct pevent *pevent, unsigned long long addr)
+{
+ struct func_map *map;
+
+ if (!pevent->func_resolver)
+ return __find_func(pevent, addr);
+
+ map = &pevent->func_resolver->map;
+ map->mod = NULL;
+ map->addr = addr;
+ map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
+ &map->addr, &map->mod);
+ if (map->func == NULL)
+ return NULL;
+
+ return map;
+}
+
/**
* pevent_find_function - find a function by a given address
* @pevent: handle for the pevent
@@ -1680,6 +1745,9 @@ process_cond(struct event_format *event, struct print_arg *top, char **tok)
type = process_arg(event, left, &token);
again:
+ if (type == EVENT_ERROR)
+ goto out_free;
+
/* Handle other operations in the arguments */
if (type == EVENT_OP && strcmp(token, ":") != 0) {
type = process_op(event, left, &token);
@@ -1939,6 +2007,12 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
goto out_warn_free;
type = process_arg_token(event, right, tok, type);
+ if (type == EVENT_ERROR) {
+ free_arg(right);
+ /* token was freed in process_arg_token() via *tok */
+ token = NULL;
+ goto out_free;
+ }
if (right->type == PRINT_OP &&
get_op_prio(arg->op.op) < get_op_prio(right->op.op)) {
@@ -4754,6 +4828,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
case 'z':
case 'Z':
case '0' ... '9':
+ case '-':
goto cont_process;
case 'p':
if (pevent->long_size == 4)
@@ -6564,6 +6639,7 @@ void pevent_free(struct pevent *pevent)
free(pevent->trace_clock);
free(pevent->events);
free(pevent->sort_events);
+ free(pevent->func_resolver);
free(pevent);
}
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 063b1971eb35..204befb05a17 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -453,6 +453,10 @@ struct cmdline_list;
struct func_map;
struct func_list;
struct event_handler;
+struct func_resolver;
+
+typedef char *(pevent_func_resolver_t)(void *priv,
+ unsigned long long *addrp, char **modp);
struct pevent {
int ref_count;
@@ -481,6 +485,7 @@ struct pevent {
int cmdline_count;
struct func_map *func_map;
+ struct func_resolver *func_resolver;
struct func_list *funclist;
unsigned int func_count;
@@ -611,6 +616,9 @@ enum trace_flag_type {
TRACE_FLAG_SOFTIRQ = 0x10,
};
+int pevent_set_function_resolver(struct pevent *pevent,
+ pevent_func_resolver_t *func, void *priv);
+void pevent_reset_function_resolver(struct pevent *pevent);
int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock);
int pevent_register_function(struct pevent *pevent, char *name,
diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 09db62ba5786..3d1bb802dbf4 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -29,3 +29,4 @@ config.mak.autogen
*.pyc
*.pyo
.config-detected
+util/intel-pt-decoder/inat-tables.c
diff --git a/tools/perf/Build b/tools/perf/Build
index b77370ef7005..72237455b400 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -35,6 +35,7 @@ paths += -DPERF_MAN_PATH="BUILD_STR($(mandir_SQ))"
CFLAGS_builtin-help.o += $(paths)
CFLAGS_builtin-timechart.o += $(paths)
CFLAGS_perf.o += -DPERF_HTML_PATH="BUILD_STR($(htmldir_SQ))" -include $(OUTPUT)PERF-VERSION-FILE
+CFLAGS_builtin-trace.o += -DSTRACE_GROUPS_DIR="BUILD_STR($(STRACE_GROUPS_DIR_SQ))"
libperf-y += util/
libperf-y += arch/
diff --git a/tools/perf/Documentation/intel-bts.txt b/tools/perf/Documentation/intel-bts.txt
new file mode 100644
index 000000000000..8bdc93bd7fdb
--- /dev/null
+++ b/tools/perf/Documentation/intel-bts.txt
@@ -0,0 +1,86 @@
+Intel Branch Trace Store
+========================
+
+Overview
+========
+
+Intel BTS could be regarded as a predecessor to Intel PT and has some
+similarities because it can also identify every branch a program takes. A
+notable difference is that Intel BTS has no timing information and as a
+consequence the present implementation is limited to per-thread recording.
+
+While decoding Intel BTS does not require walking the object code, the object
+code is still needed to pair up calls and returns correctly, consequently much
+of the Intel PT documentation applies also to Intel BTS. Refer to the Intel PT
+documentation and consider that the PMU 'intel_bts' can usually be used in
+place of 'intel_pt' in the examples provided, with the proviso that per-thread
+recording must also be stipulated i.e. the --per-thread option for
+'perf record'.
+
+
+perf record
+===========
+
+new event
+---------
+
+The Intel BTS kernel driver creates a new PMU for Intel BTS. The perf record
+option is:
+
+ -e intel_bts//
+
+Currently Intel BTS is limited to per-thread tracing so the --per-thread option
+is also needed.
+
+
+snapshot option
+---------------
+
+The snapshot option is the same as Intel PT (refer Intel PT documentation).
+
+
+auxtrace mmap size option
+-----------------------
+
+The mmap size option is the same as Intel PT (refer Intel PT documentation).
+
+
+perf script
+===========
+
+By default, perf script will decode trace data found in the perf.data file.
+This can be further controlled by option --itrace. The --itrace option is
+the same as Intel PT (refer Intel PT documentation) except that neither
+"instructions" events nor "transactions" events (and consequently call
+chains) are supported.
+
+To disable trace decoding entirely, use the option --no-itrace.
+
+
+dump option
+-----------
+
+perf script has an option (-D) to "dump" the events i.e. display the binary
+data.
+
+When -D is used, Intel BTS packets are displayed.
+
+To disable the display of Intel BTS packets, combine the -D option with
+--no-itrace.
+
+
+perf report
+===========
+
+By default, perf report will decode trace data found in the perf.data file.
+This can be further controlled by new option --itrace exactly the same as
+perf script.
+
+
+perf inject
+===========
+
+perf inject also accepts the --itrace option in which case tracing data is
+removed and replaced with the synthesized events. e.g.
+
+ perf inject --itrace -i perf.data -o perf.data.new
diff --git a/tools/perf/Documentation/intel-pt.txt b/tools/perf/Documentation/intel-pt.txt
new file mode 100644
index 000000000000..4a0501d7a3b4
--- /dev/null
+++ b/tools/perf/Documentation/intel-pt.txt
@@ -0,0 +1,766 @@
+Intel Processor Trace
+=====================
+
+Overview
+========
+
+Intel Processor Trace (Intel PT) is an extension of Intel Architecture that
+collects information about software execution such as control flow, execution
+modes and timings and formats it into highly compressed binary packets.
+Technical details are documented in the Intel 64 and IA-32 Architectures
+Software Developer Manuals, Chapter 36 Intel Processor Trace.
+
+Intel PT is first supported in Intel Core M and 5th generation Intel Core
+processors that are based on the Intel micro-architecture code name Broadwell.
+
+Trace data is collected by 'perf record' and stored within the perf.data file.
+See below for options to 'perf record'.
+
+Trace data must be 'decoded' which involves walking the object code and matching
+the trace data packets. For example a TNT packet only tells whether a
+conditional branch was taken or not taken, so to make use of that packet the
+decoder must know precisely which instruction was being executed.
+
+Decoding is done on-the-fly. The decoder outputs samples in the same format as
+samples output by perf hardware events, for example as though the "instructions"
+or "branches" events had been recorded. Presently 3 tools support this:
+'perf script', 'perf report' and 'perf inject'. See below for more information
+on using those tools.
+
+The main distinguishing feature of Intel PT is that the decoder can determine
+the exact flow of software execution. Intel PT can be used to understand why
+and how did software get to a certain point, or behave a certain way. The
+software does not have to be recompiled, so Intel PT works with debug or release
+builds, however the executed images are needed - which makes use in JIT-compiled
+environments, or with self-modified code, a challenge. Also symbols need to be
+provided to make sense of addresses.
+
+A limitation of Intel PT is that it produces huge amounts of trace data
+(hundreds of megabytes per second per core) which takes a long time to decode,
+for example two or three orders of magnitude longer than it took to collect.
+Another limitation is the performance impact of tracing, something that will
+vary depending on the use-case and architecture.
+
+
+Quickstart
+==========
+
+It is important to start small. That is because it is easy to capture vastly
+more data than can possibly be processed.
+
+The simplest thing to do with Intel PT is userspace profiling of small programs.
+Data is captured with 'perf record' e.g. to trace 'ls' userspace-only:
+
+ perf record -e intel_pt//u ls
+
+And profiled with 'perf report' e.g.
+
+ perf report
+
+To also trace kernel space presents a problem, namely kernel self-modifying
+code. A fairly good kernel image is available in /proc/kcore but to get an
+accurate image a copy of /proc/kcore needs to be made under the same conditions
+as the data capture. A script perf-with-kcore can do that, but beware that the
+script makes use of 'sudo' to copy /proc/kcore. If you have perf installed
+locally from the source tree you can do:
+
+ ~/libexec/perf-core/perf-with-kcore record pt_ls -e intel_pt// -- ls
+
+which will create a directory named 'pt_ls' and put the perf.data file and
+copies of /proc/kcore, /proc/kallsyms and /proc/modules into it. Then to use
+'perf report' becomes:
+
+ ~/libexec/perf-core/perf-with-kcore report pt_ls
+
+Because samples are synthesized after-the-fact, the sampling period can be
+selected for reporting. e.g. sample every microsecond
+
+ ~/libexec/perf-core/perf-with-kcore report pt_ls --itrace=i1usge
+
+See the sections below for more information about the --itrace option.
+
+Beware the smaller the period, the more samples that are produced, and the
+longer it takes to process them.
+
+Also note that the coarseness of Intel PT timing information will start to
+distort the statistical value of the sampling as the sampling period becomes
+smaller.
+
+To represent software control flow, "branches" samples are produced. By default
+a branch sample is synthesized for every single branch. To get an idea what
+data is available you can use the 'perf script' tool with no parameters, which
+will list all the samples.
+
+ perf record -e intel_pt//u ls
+ perf script
+
+An interesting field that is not printed by default is 'flags' which can be
+displayed as follows:
+
+ perf script -Fcomm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr,symoff,flags
+
+The flags are "bcrosyiABEx" which stand for branch, call, return, conditional,
+system, asynchronous, interrupt, transaction abort, trace begin, trace end, and
+in transaction, respectively.
+
+While it is possible to create scripts to analyze the data, an alternative
+approach is available to export the data to a postgresql database. Refer to
+script export-to-postgresql.py for more details, and to script
+call-graph-from-postgresql.py for an example of using the database.
+
+As mentioned above, it is easy to capture too much data. One way to limit the
+data captured is to use 'snapshot' mode which is explained further below.
+Refer to 'new snapshot option' and 'Intel PT modes of operation' further below.
+
+Another problem that will be experienced is decoder errors. They can be caused
+by inability to access the executed image, self-modified or JIT-ed code, or the
+inability to match side-band information (such as context switches and mmaps)
+which results in the decoder not knowing what code was executed.
+
+There is also the problem of perf not being able to copy the data fast enough,
+resulting in data lost because the buffer was full. See 'Buffer handling' below
+for more details.
+
+
+perf record
+===========
+
+new event
+---------
+
+The Intel PT kernel driver creates a new PMU for Intel PT. PMU events are
+selected by providing the PMU name followed by the "config" separated by slashes.
+An enhancement has been made to allow default "config" e.g. the option
+
+ -e intel_pt//
+
+will use a default config value. Currently that is the same as
+
+ -e intel_pt/tsc,noretcomp=0/
+
+which is the same as
+
+ -e intel_pt/tsc=1,noretcomp=0/
+
+Note there are now new config terms - see section 'config terms' further below.
+
+The config terms are listed in /sys/devices/intel_pt/format. They are bit
+fields within the config member of the struct perf_event_attr which is
+passed to the kernel by the perf_event_open system call. They correspond to bit
+fields in the IA32_RTIT_CTL MSR. Here is a list of them and their definitions:
+
+ $ grep -H . /sys/bus/event_source/devices/intel_pt/format/*
+ /sys/bus/event_source/devices/intel_pt/format/cyc:config:1
+ /sys/bus/event_source/devices/intel_pt/format/cyc_thresh:config:19-22
+ /sys/bus/event_source/devices/intel_pt/format/mtc:config:9
+ /sys/bus/event_source/devices/intel_pt/format/mtc_period:config:14-17
+ /sys/bus/event_source/devices/intel_pt/format/noretcomp:config:11
+ /sys/bus/event_source/devices/intel_pt/format/psb_period:config:24-27
+ /sys/bus/event_source/devices/intel_pt/format/tsc:config:10
+
+Note that the default config must be overridden for each term i.e.
+
+ -e intel_pt/noretcomp=0/
+
+is the same as:
+
+ -e intel_pt/tsc=1,noretcomp=0/
+
+So, to disable TSC packets use:
+
+ -e intel_pt/tsc=0/
+
+It is also possible to specify the config value explicitly:
+
+ -e intel_pt/config=0x400/
+
+Note that, as with all events, the event is suffixed with event modifiers:
+
+ u userspace
+ k kernel
+ h hypervisor
+ G guest
+ H host
+ p precise ip
+
+'h', 'G' and 'H' are for virtualization which is not supported by Intel PT.
+'p' is also not relevant to Intel PT. So only options 'u' and 'k' are
+meaningful for Intel PT.
+
+perf_event_attr is displayed if the -vv option is used e.g.
+
+ ------------------------------------------------------------
+ perf_event_attr:
+ type 6
+ size 112
+ config 0x400
+ { sample_period, sample_freq } 1
+ sample_type IP|TID|TIME|CPU|IDENTIFIER
+ read_format ID
+ disabled 1
+ inherit 1
+ exclude_kernel 1
+ exclude_hv 1
+ enable_on_exec 1
+ sample_id_all 1
+ ------------------------------------------------------------
+ sys_perf_event_open: pid 31104 cpu 0 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 1 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 2 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 3 group_fd -1 flags 0x8
+ ------------------------------------------------------------
+
+
+config terms
+------------
+
+The June 2015 version of Intel 64 and IA-32 Architectures Software Developer
+Manuals, Chapter 36 Intel Processor Trace, defined new Intel PT features.
+Some of the features are reflect in new config terms. All the config terms are
+described below.
+
+tsc Always supported. Produces TSC timestamp packets to provide
+ timing information. In some cases it is possible to decode
+ without timing information, for example a per-thread context
+ that does not overlap executable memory maps.
+
+ The default config selects tsc (i.e. tsc=1).
+
+noretcomp Always supported. Disables "return compression" so a TIP packet
+ is produced when a function returns. Causes more packets to be
+ produced but might make decoding more reliable.
+
+ The default config does not select noretcomp (i.e. noretcomp=0).
+
+psb_period Allows the frequency of PSB packets to be specified.
+
+ The PSB packet is a synchronization packet that provides a
+ starting point for decoding or recovery from errors.
+
+ Support for psb_period is indicated by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/psb_cyc
+
+ which contains "1" if the feature is supported and "0"
+ otherwise.
+
+ Valid values are given by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/psb_periods
+
+ which contains a hexadecimal value, the bits of which represent
+ valid values e.g. bit 2 set means value 2 is valid.
+
+ The psb_period value is converted to the approximate number of
+ trace bytes between PSB packets as:
+
+ 2 ^ (value + 11)
+
+ e.g. value 3 means 16KiB bytes between PSBs
+
+ If an invalid value is entered, the error message
+ will give a list of valid values e.g.
+
+ $ perf record -e intel_pt/psb_period=15/u uname
+ Invalid psb_period for intel_pt. Valid values are: 0-5
+
+ If MTC packets are selected, the default config selects a value
+ of 3 (i.e. psb_period=3) or the nearest lower value that is
+ supported (0 is always supported). Otherwise the default is 0.
+
+ If decoding is expected to be reliable and the buffer is large
+ then a large PSB period can be used.
+
+ Because a TSC packet is produced with PSB, the PSB period can
+ also affect the granularity to timing information in the absence
+ of MTC or CYC.
+
+mtc Produces MTC timing packets.
+
+ MTC packets provide finer grain timestamp information than TSC
+ packets. MTC packets record time using the hardware crystal
+ clock (CTC) which is related to TSC packets using a TMA packet.
+
+ Support for this feature is indicated by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/mtc
+
+ which contains "1" if the feature is supported and
+ "0" otherwise.
+
+ The frequency of MTC packets can also be specified - see
+ mtc_period below.
+
+mtc_period Specifies how frequently MTC packets are produced - see mtc
+ above for how to determine if MTC packets are supported.
+
+ Valid values are given by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/mtc_periods
+
+ which contains a hexadecimal value, the bits of which represent
+ valid values e.g. bit 2 set means value 2 is valid.
+
+ The mtc_period value is converted to the MTC frequency as:
+
+ CTC-frequency / (2 ^ value)
+
+ e.g. value 3 means one eighth of CTC-frequency
+
+ Where CTC is the hardware crystal clock, the frequency of which
+ can be related to TSC via values provided in cpuid leaf 0x15.
+
+ If an invalid value is entered, the error message
+ will give a list of valid values e.g.
+
+ $ perf record -e intel_pt/mtc_period=15/u uname
+ Invalid mtc_period for intel_pt. Valid values are: 0,3,6,9
+
+ The default value is 3 or the nearest lower value
+ that is supported (0 is always supported).
+
+cyc Produces CYC timing packets.
+
+ CYC packets provide even finer grain timestamp information than
+ MTC and TSC packets. A CYC packet contains the number of CPU
+ cycles since the last CYC packet. Unlike MTC and TSC packets,
+ CYC packets are only sent when another packet is also sent.
+
+ Support for this feature is indicated by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/psb_cyc
+
+ which contains "1" if the feature is supported and
+ "0" otherwise.
+
+ The number of CYC packets produced can be reduced by specifying
+ a threshold - see cyc_thresh below.
+
+cyc_thresh Specifies how frequently CYC packets are produced - see cyc
+ above for how to determine if CYC packets are supported.
+
+ Valid cyc_thresh values are given by:
+
+ /sys/bus/event_source/devices/intel_pt/caps/cycle_thresholds
+
+ which contains a hexadecimal value, the bits of which represent
+ valid values e.g. bit 2 set means value 2 is valid.
+
+ The cyc_thresh value represents the minimum number of CPU cycles
+ that must have passed before a CYC packet can be sent. The
+ number of CPU cycles is:
+
+ 2 ^ (value - 1)
+
+ e.g. value 4 means 8 CPU cycles must pass before a CYC packet
+ can be sent. Note a CYC packet is still only sent when another
+ packet is sent, not at, e.g. every 8 CPU cycles.
+
+ If an invalid value is entered, the error message
+ will give a list of valid values e.g.
+
+ $ perf record -e intel_pt/cyc,cyc_thresh=15/u uname
+ Invalid cyc_thresh for intel_pt. Valid values are: 0-12
+
+ CYC packets are not requested by default.
+
+no_force_psb This is a driver option and is not in the IA32_RTIT_CTL MSR.
+
+ It stops the driver resetting the byte count to zero whenever
+ enabling the trace (for example on context switches) which in
+ turn results in no PSB being forced. However some processors
+ will produce a PSB anyway.
+
+ In any case, there is still a PSB when the trace is enabled for
+ the first time.
+
+ no_force_psb can be used to slightly decrease the trace size but
+ may make it harder for the decoder to recover from errors.
+
+ no_force_psb is not selected by default.
+
+
+new snapshot option
+-------------------
+
+The difference between full trace and snapshot from the kernel's perspective is
+that in full trace we don't overwrite trace data that the user hasn't collected
+yet (and indicated that by advancing aux_tail), whereas in snapshot mode we let
+the trace run and overwrite older data in the buffer so that whenever something
+interesting happens, we can stop it and grab a snapshot of what was going on
+around that interesting moment.
+
+To select snapshot mode a new option has been added:
+
+ -S
+
+Optionally it can be followed by the snapshot size e.g.
+
+ -S0x100000
+
+The default snapshot size is the auxtrace mmap size. If neither auxtrace mmap size
+nor snapshot size is specified, then the default is 4MiB for privileged users
+(or if /proc/sys/kernel/perf_event_paranoid < 0), 128KiB for unprivileged users.
+If an unprivileged user does not specify mmap pages, the mmap pages will be
+reduced as described in the 'new auxtrace mmap size option' section below.
+
+The snapshot size is displayed if the option -vv is used e.g.
+
+ Intel PT snapshot size: %zu
+
+
+new auxtrace mmap size option
+---------------------------
+
+Intel PT buffer size is specified by an addition to the -m option e.g.
+
+ -m,16
+
+selects a buffer size of 16 pages i.e. 64KiB.
+
+Note that the existing functionality of -m is unchanged. The auxtrace mmap size
+is specified by the optional addition of a comma and the value.
+
+The default auxtrace mmap size for Intel PT is 4MiB/page_size for privileged users
+(or if /proc/sys/kernel/perf_event_paranoid < 0), 128KiB for unprivileged users.
+If an unprivileged user does not specify mmap pages, the mmap pages will be
+reduced from the default 512KiB/page_size to 256KiB/page_size, otherwise the
+user is likely to get an error as they exceed their mlock limit (Max locked
+memory as shown in /proc/self/limits). Note that perf does not count the first
+512KiB (actually /proc/sys/kernel/perf_event_mlock_kb minus 1 page) per cpu
+against the mlock limit so an unprivileged user is allowed 512KiB per cpu plus
+their mlock limit (which defaults to 64KiB but is not multiplied by the number
+of cpus).
+
+In full-trace mode, powers of two are allowed for buffer size, with a minimum
+size of 2 pages. In snapshot mode, it is the same but the minimum size is
+1 page.
+
+The mmap size and auxtrace mmap size are displayed if the -vv option is used e.g.
+
+ mmap length 528384
+ auxtrace mmap length 4198400
+
+
+Intel PT modes of operation
+---------------------------
+
+Intel PT can be used in 2 modes:
+ full-trace mode
+ snapshot mode
+
+Full-trace mode traces continuously e.g.
+
+ perf record -e intel_pt//u uname
+
+Snapshot mode captures the available data when a signal is sent e.g.
+
+ perf record -v -e intel_pt//u -S ./loopy 1000000000 &
+ [1] 11435
+ kill -USR2 11435
+ Recording AUX area tracing snapshot
+
+Note that the signal sent is SIGUSR2.
+Note that "Recording AUX area tracing snapshot" is displayed because the -v
+option is used.
+
+The 2 modes cannot be used together.
+
+
+Buffer handling
+---------------
+
+There may be buffer limitations (i.e. single ToPa entry) which means that actual
+buffer sizes are limited to powers of 2 up to 4MiB (MAX_ORDER). In order to
+provide other sizes, and in particular an arbitrarily large size, multiple
+buffers are logically concatenated. However an interrupt must be used to switch
+between buffers. That has two potential problems:
+ a) the interrupt may not be handled in time so that the current buffer
+ becomes full and some trace data is lost.
+ b) the interrupts may slow the system and affect the performance
+ results.
+
+If trace data is lost, the driver sets 'truncated' in the PERF_RECORD_AUX event
+which the tools report as an error.
+
+In full-trace mode, the driver waits for data to be copied out before allowing
+the (logical) buffer to wrap-around. If data is not copied out quickly enough,
+again 'truncated' is set in the PERF_RECORD_AUX event. If the driver has to
+wait, the intel_pt event gets disabled. Because it is difficult to know when
+that happens, perf tools always re-enable the intel_pt event after copying out
+data.
+
+
+Intel PT and build ids
+----------------------
+
+By default "perf record" post-processes the event stream to find all build ids
+for executables for all addresses sampled. Deliberately, Intel PT is not
+decoded for that purpose (it would take too long). Instead the build ids for
+all executables encountered (due to mmap, comm or task events) are included
+in the perf.data file.
+
+To see buildids included in the perf.data file use the command:
+
+ perf buildid-list
+
+If the perf.data file contains Intel PT data, that is the same as:
+
+ perf buildid-list --with-hits
+
+
+Snapshot mode and event disabling
+---------------------------------
+
+In order to make a snapshot, the intel_pt event is disabled using an IOCTL,
+namely PERF_EVENT_IOC_DISABLE. However doing that can also disable the
+collection of side-band information. In order to prevent that, a dummy
+software event has been introduced that permits tracking events (like mmaps) to
+continue to be recorded while intel_pt is disabled. That is important to ensure
+there is complete side-band information to allow the decoding of subsequent
+snapshots.
+
+A test has been created for that. To find the test:
+
+ perf test list
+ ...
+ 23: Test using a dummy software event to keep tracking
+
+To run the test:
+
+ perf test 23
+ 23: Test using a dummy software event to keep tracking : Ok
+
+
+perf record modes (nothing new here)
+------------------------------------
+
+perf record essentially operates in one of three modes:
+ per thread
+ per cpu
+ workload only
+
+"per thread" mode is selected by -t or by --per-thread (with -p or -u or just a
+workload).
+"per cpu" is selected by -C or -a.
+"workload only" mode is selected by not using the other options but providing a
+command to run (i.e. the workload).
+
+In per-thread mode an exact list of threads is traced. There is no inheritance.
+Each thread has its own event buffer.
+
+In per-cpu mode all processes (or processes from the selected cgroup i.e. -G
+option, or processes selected with -p or -u) are traced. Each cpu has its own
+buffer. Inheritance is allowed.
+
+In workload-only mode, the workload is traced but with per-cpu buffers.
+Inheritance is allowed. Note that you can now trace a workload in per-thread
+mode by using the --per-thread option.
+
+
+Privileged vs non-privileged users
+----------------------------------
+
+Unless /proc/sys/kernel/perf_event_paranoid is set to -1, unprivileged users
+have memory limits imposed upon them. That affects what buffer sizes they can
+have as outlined above.
+
+Unless /proc/sys/kernel/perf_event_paranoid is set to -1, unprivileged users are
+not permitted to use tracepoints which means there is insufficient side-band
+information to decode Intel PT in per-cpu mode, and potentially workload-only
+mode too if the workload creates new processes.
+
+Note also, that to use tracepoints, read-access to debugfs is required. So if
+debugfs is not mounted or the user does not have read-access, it will again not
+be possible to decode Intel PT in per-cpu mode.
+
+
+sched_switch tracepoint
+-----------------------
+
+The sched_switch tracepoint is used to provide side-band data for Intel PT
+decoding. sched_switch events are automatically added. e.g. the second event
+shown below
+
+ $ perf record -vv -e intel_pt//u uname
+ ------------------------------------------------------------
+ perf_event_attr:
+ type 6
+ size 112
+ config 0x400
+ { sample_period, sample_freq } 1
+ sample_type IP|TID|TIME|CPU|IDENTIFIER
+ read_format ID
+ disabled 1
+ inherit 1
+ exclude_kernel 1
+ exclude_hv 1
+ enable_on_exec 1
+ sample_id_all 1
+ ------------------------------------------------------------
+ sys_perf_event_open: pid 31104 cpu 0 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 1 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 2 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 3 group_fd -1 flags 0x8
+ ------------------------------------------------------------
+ perf_event_attr:
+ type 2
+ size 112
+ config 0x108
+ { sample_period, sample_freq } 1
+ sample_type IP|TID|TIME|CPU|PERIOD|RAW|IDENTIFIER
+ read_format ID
+ inherit 1
+ sample_id_all 1
+ exclude_guest 1
+ ------------------------------------------------------------
+ sys_perf_event_open: pid -1 cpu 0 group_fd -1 flags 0x8
+ sys_perf_event_open: pid -1 cpu 1 group_fd -1 flags 0x8
+ sys_perf_event_open: pid -1 cpu 2 group_fd -1 flags 0x8
+ sys_perf_event_open: pid -1 cpu 3 group_fd -1 flags 0x8
+ ------------------------------------------------------------
+ perf_event_attr:
+ type 1
+ size 112
+ config 0x9
+ { sample_period, sample_freq } 1
+ sample_type IP|TID|TIME|IDENTIFIER
+ read_format ID
+ disabled 1
+ inherit 1
+ exclude_kernel 1
+ exclude_hv 1
+ mmap 1
+ comm 1
+ enable_on_exec 1
+ task 1
+ sample_id_all 1
+ mmap2 1
+ comm_exec 1
+ ------------------------------------------------------------
+ sys_perf_event_open: pid 31104 cpu 0 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 1 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 2 group_fd -1 flags 0x8
+ sys_perf_event_open: pid 31104 cpu 3 group_fd -1 flags 0x8
+ mmap size 528384B
+ AUX area mmap length 4194304
+ perf event ring buffer mmapped per cpu
+ Synthesizing auxtrace information
+ Linux
+ [ perf record: Woken up 1 times to write data ]
+ [ perf record: Captured and wrote 0.042 MB perf.data ]
+
+Note, the sched_switch event is only added if the user is permitted to use it
+and only in per-cpu mode.
+
+Note also, the sched_switch event is only added if TSC packets are requested.
+That is because, in the absence of timing information, the sched_switch events
+cannot be matched against the Intel PT trace.
+
+
+perf script
+===========
+
+By default, perf script will decode trace data found in the perf.data file.
+This can be further controlled by new option --itrace.
+
+
+New --itrace option
+-------------------
+
+Having no option is the same as
+
+ --itrace
+
+which, in turn, is the same as
+
+ --itrace=ibxe
+
+The letters are:
+
+ i synthesize "instructions" events
+ b synthesize "branches" events
+ x synthesize "transactions" events
+ c synthesize branches events (calls only)
+ r synthesize branches events (returns only)
+ e synthesize tracing error events
+ d create a debug log
+ g synthesize a call chain (use with i or x)
+
+"Instructions" events look like they were recorded by "perf record -e
+instructions".
+
+"Branches" events look like they were recorded by "perf record -e branches". "c"
+and "r" can be combined to get calls and returns.
+
+"Transactions" events correspond to the start or end of transactions. The
+'flags' field can be used in perf script to determine whether the event is a
+tranasaction start, commit or abort.
+
+Error events are new. They show where the decoder lost the trace. Error events
+are quite important. Users must know if what they are seeing is a complete
+picture or not.
+
+The "d" option will cause the creation of a file "intel_pt.log" containing all
+decoded packets and instructions. Note that this option slows down the decoder
+and that the resulting file may be very large.
+
+In addition, the period of the "instructions" event can be specified. e.g.
+
+ --itrace=i10us
+
+sets the period to 10us i.e. one instruction sample is synthesized for each 10
+microseconds of trace. Alternatives to "us" are "ms" (milliseconds),
+"ns" (nanoseconds), "t" (TSC ticks) or "i" (instructions).
+
+"ms", "us" and "ns" are converted to TSC ticks.
+
+The timing information included with Intel PT does not give the time of every
+instruction. Consequently, for the purpose of sampling, the decoder estimates
+the time since the last timing packet based on 1 tick per instruction. The time
+on the sample is *not* adjusted and reflects the last known value of TSC.
+
+For Intel PT, the default period is 100us.
+
+Also the call chain size (default 16, max. 1024) for instructions or
+transactions events can be specified. e.g.
+
+ --itrace=ig32
+ --itrace=xg32
+
+To disable trace decoding entirely, use the option --no-itrace.
+
+
+dump option
+-----------
+
+perf script has an option (-D) to "dump" the events i.e. display the binary
+data.
+
+When -D is used, Intel PT packets are displayed. The packet decoder does not
+pay attention to PSB packets, but just decodes the bytes - so the packets seen
+by the actual decoder may not be identical in places where the data is corrupt.
+One example of that would be when the buffer-switching interrupt has been too
+slow, and the buffer has been filled completely. In that case, the last packet
+in the buffer might be truncated and immediately followed by a PSB as the trace
+continues in the next buffer.
+
+To disable the display of Intel PT packets, combine the -D option with
+--no-itrace.
+
+
+perf report
+===========
+
+By default, perf report will decode trace data found in the perf.data file.
+This can be further controlled by new option --itrace exactly the same as
+perf script, with the exception that the default is --itrace=igxe.
+
+
+perf inject
+===========
+
+perf inject also accepts the --itrace option in which case tracing data is
+removed and replaced with the synthesized events. e.g.
+
+ perf inject --itrace -i perf.data -o perf.data.new
diff --git a/tools/perf/Documentation/itrace.txt b/tools/perf/Documentation/itrace.txt
new file mode 100644
index 000000000000..2ff946677e3b
--- /dev/null
+++ b/tools/perf/Documentation/itrace.txt
@@ -0,0 +1,22 @@
+ i synthesize instructions events
+ b synthesize branches events
+ c synthesize branches events (calls only)
+ r synthesize branches events (returns only)
+ x synthesize transactions events
+ e synthesize error events
+ d create a debug log
+ g synthesize a call chain (use with i or x)
+
+ The default is all events i.e. the same as --itrace=ibxe
+
+ In addition, the period (default 100000) for instructions events
+ can be specified in units of:
+
+ i instructions
+ t ticks
+ ms milliseconds
+ us microseconds
+ ns nanoseconds (default)
+
+ Also the call chain size (default 16, max. 1024) for instructions or
+ transactions events can be specified.
diff --git a/tools/perf/Documentation/perf-bench.txt b/tools/perf/Documentation/perf-bench.txt
index bf3d0644bf10..ab632d9fbd7d 100644
--- a/tools/perf/Documentation/perf-bench.txt
+++ b/tools/perf/Documentation/perf-bench.txt
@@ -216,6 +216,10 @@ Suite for evaluating parallel wake calls.
*requeue*::
Suite for evaluating requeue calls.
+*lock-pi*::
+Suite for evaluating futex lock_pi calls.
+
+
SEE ALSO
--------
linkperf:perf[1]
diff --git a/tools/perf/Documentation/perf-inject.txt b/tools/perf/Documentation/perf-inject.txt
index b876ae312699..0c721c3e37e1 100644
--- a/tools/perf/Documentation/perf-inject.txt
+++ b/tools/perf/Documentation/perf-inject.txt
@@ -48,28 +48,7 @@ OPTIONS
Decode Instruction Tracing data, replacing it with synthesized events.
Options are:
- i synthesize instructions events
- b synthesize branches events
- c synthesize branches events (calls only)
- r synthesize branches events (returns only)
- x synthesize transactions events
- e synthesize error events
- d create a debug log
- g synthesize a call chain (use with i or x)
-
- The default is all events i.e. the same as --itrace=ibxe
-
- In addition, the period (default 100000) for instructions events
- can be specified in units of:
-
- i instructions
- t ticks
- ms milliseconds
- us microseconds
- ns nanoseconds (default)
-
- Also the call chain size (default 16, max. 1024) for instructions or
- transactions events can be specified.
+include::itrace.txt[]
SEE ALSO
--------
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 9b9d9d086680..347a27322ed8 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -45,6 +45,21 @@ OPTIONS
param1 and param2 are defined as formats for the PMU in:
/sys/bus/event_sources/devices/<pmu>/format/*
+ There are also some params which are not defined in .../<pmu>/format/*.
+ These params can be used to overload default config values per event.
+ Here is a list of the params.
+ - 'period': Set event sampling period
+ - 'freq': Set event sampling frequency
+ - 'time': Disable/enable time stamping. Acceptable values are 1 for
+ enabling time stamping. 0 for disabling time stamping.
+ The default is 1.
+ - 'call-graph': Disable/enable callgraph. Acceptable str are "fp" for
+ FP mode, "dwarf" for DWARF mode, "lbr" for LBR mode and
+ "no" for disable callgraph.
+ - 'stack-size': user stack size for dwarf mode
+ Note: If user explicitly sets options which conflict with the params,
+ the value set by the params will be overridden.
+
- a hardware breakpoint event in the form of '\mem:addr[/len][:access]'
where addr is the address in memory you want to break in.
Access is the memory access type (read, write, execute) it can
@@ -61,7 +76,16 @@ OPTIONS
"perf report" to view group events together.
--filter=<filter>::
- Event filter.
+ Event filter. This option should follow a event selector (-e) which
+ selects tracepoint event(s). Multiple '--filter' options are combined
+ using '&&'.
+
+--exclude-perf::
+ Don't record events issued by perf itself. This option should follow
+ a event selector (-e) which selects tracepoint event(s). It adds a
+ filter expression 'common_pid != $PERFPID' to filters. If other
+ '--filter' exists, the new filter expression will be combined with
+ them by '&&'.
-a::
--all-cpus::
@@ -276,6 +300,10 @@ When processing pre-existing threads /proc/XXX/mmap, it may take a long time,
because the file may be huge. A time out is needed in such cases.
This option sets the time out limit. The default value is 500 ms.
+--switch-events::
+Record context switch events i.e. events of type PERF_RECORD_SWITCH or
+PERF_RECORD_SWITCH_CPU_WIDE.
+
SEE ALSO
--------
linkperf:perf-stat[1], linkperf:perf-list[1]
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index c33b69f3374f..9c7981bfddad 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -81,6 +81,8 @@ OPTIONS
- cpu: cpu number the task ran at the time of sample
- srcline: filename and line number executed at the time of sample. The
DWARF debugging info must be provided.
+ - srcfile: file name of the source file of the same. Requires dwarf
+ information.
- weight: Event specific weight, e.g. memory latency or transaction
abort cost. This is the global weight.
- local_weight: Local weight version of the weight above.
@@ -109,6 +111,7 @@ OPTIONS
- mispredict: "N" for predicted branch, "Y" for mispredicted branch
- in_tx: branch in TSX transaction
- abort: TSX transaction abort.
+ - cycles: Cycles in basic block
And default sort keys are changed to comm, dso_from, symbol_from, dso_to
and symbol_to, see '--branch-stack'.
@@ -328,31 +331,23 @@ OPTIONS
--itrace::
Options for decoding instruction tracing data. The options are:
- i synthesize instructions events
- b synthesize branches events
- c synthesize branches events (calls only)
- r synthesize branches events (returns only)
- x synthesize transactions events
- e synthesize error events
- d create a debug log
- g synthesize a call chain (use with i or x)
-
- The default is all events i.e. the same as --itrace=ibxe
-
- In addition, the period (default 100000) for instructions events
- can be specified in units of:
-
- i instructions
- t ticks
- ms milliseconds
- us microseconds
- ns nanoseconds (default)
-
- Also the call chain size (default 16, max. 1024) for instructions or
- transactions events can be specified.
+include::itrace.txt[]
To disable decoding entirely, use --no-itrace.
+--full-source-path::
+ Show the full path for source files for srcline output.
+
+--show-ref-call-graph::
+ When multiple events are sampled, it may not be needed to collect
+ callgraphs for all of them. The sample sites are usually nearby,
+ and it's enough to collect the callgraphs on a reference event.
+ So user can use "call-graph=no" event modifier to disable callgraph
+ for other events to reduce the overhead.
+ However, perf report cannot show callgraphs for the event which
+ disable the callgraph.
+ This option extends the perf report to show reference callgraphs,
+ which collected by reference event, in no callgraph event.
include::callchain-overhead-calculation.txt[]
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index c82df572fac2..614b2c7b0293 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -222,6 +222,17 @@ OPTIONS
--show-mmap-events
Display mmap related events (e.g. MMAP, MMAP2).
+--show-switch-events
+ Display context switch events i.e. events of type PERF_RECORD_SWITCH or
+ PERF_RECORD_SWITCH_CPU_WIDE.
+
+--demangle::
+ Demangle symbol names to human readable form. It's enabled by default,
+ disable with --no-demangle.
+
+--demangle-kernel::
+ Demangle kernel symbol names to human readable form (for C++ kernels).
+
--header
Show perf.data header.
@@ -231,31 +242,13 @@ OPTIONS
--itrace::
Options for decoding instruction tracing data. The options are:
- i synthesize instructions events
- b synthesize branches events
- c synthesize branches events (calls only)
- r synthesize branches events (returns only)
- x synthesize transactions events
- e synthesize error events
- d create a debug log
- g synthesize a call chain (use with i or x)
-
- The default is all events i.e. the same as --itrace=ibxe
-
- In addition, the period (default 100000) for instructions events
- can be specified in units of:
-
- i instructions
- t ticks
- ms milliseconds
- us microseconds
- ns nanoseconds (default)
-
- Also the call chain size (default 16, max. 1024) for instructions or
- transactions events can be specified.
+include::itrace.txt[]
To disable decoding entirely, use --no-itrace.
+--full-source-path::
+ Show the full path for source files for srcline output.
+
SEE ALSO
--------
linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 776aec4d0927..f6a23eb294e7 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -208,6 +208,27 @@ Default is to monitor all CPUS.
This option sets the time out limit. The default value is 500 ms.
+-b::
+--branch-any::
+ Enable taken branch stack sampling. Any type of taken branch may be sampled.
+ This is a shortcut for --branch-filter any. See --branch-filter for more infos.
+
+-j::
+--branch-filter::
+ Enable taken branch stack sampling. Each sample captures a series of consecutive
+ taken branches. The number of branches captured with each sample depends on the
+ underlying hardware, the type of branches of interest, and the executed code.
+ It is possible to select the types of branches captured by enabling filters.
+ For a full list of modifiers please see the perf record manpage.
+
+ The option requires at least one branch type among any, any_call, any_ret, ind_call, cond.
+ The privilege levels may be omitted, in which case, the privilege levels of the associated
+ event are applied to the branch filter. Both kernel (k) and hypervisor (hv) privilege
+ levels are subject to permissions. When sampling on multiple events, branch stack sampling
+ is enabled for all the sampling events. The sampled branch type is the same for all events.
+ The various filters must be specified as a comma separated list: --branch-filter any_ret,u,k
+ Note that this feature may not be available on all processors.
+
INTERACTIVE PROMPTING KEYS
--------------------------
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index d01a0aad5a01..af009bd6e6b7 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -18,6 +18,7 @@ tools/arch/x86/include/asm/atomic.h
tools/arch/x86/include/asm/rmwcc.h
tools/lib/traceevent
tools/lib/api
+tools/lib/bpf
tools/lib/hweight.c
tools/lib/rbtree.c
tools/lib/symbol/kallsyms.c
@@ -40,7 +41,6 @@ tools/include/asm-generic/bitops.h
tools/include/linux/atomic.h
tools/include/linux/bitops.h
tools/include/linux/compiler.h
-tools/include/linux/export.h
tools/include/linux/hash.h
tools/include/linux/kernel.h
tools/include/linux/list.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index bba34636b733..d9863cb96f59 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -76,6 +76,12 @@ include config/utilities.mak
#
# Define NO_AUXTRACE if you do not want AUX area tracing support
+# As per kernel Makefile, avoid funny character set dependencies
+unexport LC_ALL
+LC_COLLATE=C
+LC_NUMERIC=C
+export LC_COLLATE LC_NUMERIC
+
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
@@ -135,6 +141,7 @@ INSTALL = install
FLEX = flex
BISON = bison
STRIP = strip
+AWK = awk
LIB_DIR = $(srctree)/tools/lib/api/
TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
@@ -289,7 +296,7 @@ strip: $(PROGRAMS) $(OUTPUT)perf
PERF_IN := $(OUTPUT)perf-in.o
-export srctree OUTPUT RM CC LD AR CFLAGS V BISON FLEX
+export srctree OUTPUT RM CC LD AR CFLAGS V BISON FLEX AWK
build := -f $(srctree)/tools/build/Makefile.build dir=. obj
$(PERF_IN): $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h FORCE
@@ -507,6 +514,11 @@ endif
$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
$(call QUIET_INSTALL, perf-with-kcore) \
$(INSTALL) $(OUTPUT)perf-with-kcore -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
+ifndef NO_LIBAUDIT
+ $(call QUIET_INSTALL, strace/groups) \
+ $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)'; \
+ $(INSTALL) trace/strace/groups/* -t '$(DESTDIR_SQ)$(STRACE_GROUPS_INSTDIR_SQ)'
+endif
ifndef NO_LIBPERL
$(call QUIET_INSTALL, perl-scripts) \
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \
@@ -560,7 +572,8 @@ clean: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean config-clean
$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
$(Q)$(RM) $(OUTPUT).config-detected
$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf perf-read-vdso32 perf-read-vdsox32
- $(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
+ $(call QUIET_CLEAN, core-gen) $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)FEATURE-DUMP $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex* \
+ $(OUTPUT)util/intel-pt-decoder/inat-tables.c
$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
$(python-clean)
diff --git a/tools/perf/arch/alpha/Build b/tools/perf/arch/alpha/Build
new file mode 100644
index 000000000000..1bb8bf6d7fd4
--- /dev/null
+++ b/tools/perf/arch/alpha/Build
@@ -0,0 +1 @@
+# empty
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index b7bb42c44694..b00dfd92ea73 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -128,7 +128,7 @@ static const char *normalize_arch(char *arch)
return arch;
}
-static int perf_session_env__lookup_binutils_path(struct perf_session_env *env,
+static int perf_session_env__lookup_binutils_path(struct perf_env *env,
const char *name,
const char **path)
{
@@ -206,7 +206,7 @@ out_error:
return -1;
}
-int perf_session_env__lookup_objdump(struct perf_session_env *env)
+int perf_session_env__lookup_objdump(struct perf_env *env)
{
/*
* For live mode, env->arch will be NULL and we can use
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
index ede246eda9be..20176df69fc8 100644
--- a/tools/perf/arch/common.h
+++ b/tools/perf/arch/common.h
@@ -5,6 +5,6 @@
extern const char *objdump_path;
-int perf_session_env__lookup_objdump(struct perf_session_env *env);
+int perf_session_env__lookup_objdump(struct perf_env *env);
#endif /* ARCH_PERF_COMMON_H */
diff --git a/tools/perf/arch/mips/Build b/tools/perf/arch/mips/Build
new file mode 100644
index 000000000000..1bb8bf6d7fd4
--- /dev/null
+++ b/tools/perf/arch/mips/Build
@@ -0,0 +1 @@
+# empty
diff --git a/tools/perf/arch/parisc/Build b/tools/perf/arch/parisc/Build
new file mode 100644
index 000000000000..1bb8bf6d7fd4
--- /dev/null
+++ b/tools/perf/arch/parisc/Build
@@ -0,0 +1 @@
+# empty
diff --git a/tools/perf/arch/x86/util/Build b/tools/perf/arch/x86/util/Build
index cfbccc4e3187..2c55e1b336c5 100644
--- a/tools/perf/arch/x86/util/Build
+++ b/tools/perf/arch/x86/util/Build
@@ -1,8 +1,13 @@
libperf-y += header.o
libperf-y += tsc.o
+libperf-y += pmu.o
libperf-y += kvm-stat.o
libperf-$(CONFIG_DWARF) += dwarf-regs.o
libperf-$(CONFIG_LIBUNWIND) += unwind-libunwind.o
libperf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
+
+libperf-$(CONFIG_AUXTRACE) += auxtrace.o
+libperf-$(CONFIG_AUXTRACE) += intel-pt.o
+libperf-$(CONFIG_AUXTRACE) += intel-bts.o
diff --git a/tools/perf/arch/x86/util/auxtrace.c b/tools/perf/arch/x86/util/auxtrace.c
new file mode 100644
index 000000000000..7a7805583e3f
--- /dev/null
+++ b/tools/perf/arch/x86/util/auxtrace.c
@@ -0,0 +1,83 @@
+/*
+ * auxtrace.c: AUX area tracing support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdbool.h>
+
+#include "../../util/header.h"
+#include "../../util/debug.h"
+#include "../../util/pmu.h"
+#include "../../util/auxtrace.h"
+#include "../../util/intel-pt.h"
+#include "../../util/intel-bts.h"
+#include "../../util/evlist.h"
+
+static
+struct auxtrace_record *auxtrace_record__init_intel(struct perf_evlist *evlist,
+ int *err)
+{
+ struct perf_pmu *intel_pt_pmu;
+ struct perf_pmu *intel_bts_pmu;
+ struct perf_evsel *evsel;
+ bool found_pt = false;
+ bool found_bts = false;
+
+ intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME);
+ intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);
+
+ if (evlist) {
+ evlist__for_each(evlist, evsel) {
+ if (intel_pt_pmu &&
+ evsel->attr.type == intel_pt_pmu->type)
+ found_pt = true;
+ if (intel_bts_pmu &&
+ evsel->attr.type == intel_bts_pmu->type)
+ found_bts = true;
+ }
+ }
+
+ if (found_pt && found_bts) {
+ pr_err("intel_pt and intel_bts may not be used together\n");
+ *err = -EINVAL;
+ return NULL;
+ }
+
+ if (found_pt)
+ return intel_pt_recording_init(err);
+
+ if (found_bts)
+ return intel_bts_recording_init(err);
+
+ return NULL;
+}
+
+struct auxtrace_record *auxtrace_record__init(struct perf_evlist *evlist,
+ int *err)
+{
+ char buffer[64];
+ int ret;
+
+ *err = 0;
+
+ ret = get_cpuid(buffer, sizeof(buffer));
+ if (ret) {
+ *err = ret;
+ return NULL;
+ }
+
+ if (!strncmp(buffer, "GenuineIntel,", 13))
+ return auxtrace_record__init_intel(evlist, err);
+
+ return NULL;
+}
diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
new file mode 100644
index 000000000000..9b94ce520917
--- /dev/null
+++ b/tools/perf/arch/x86/util/intel-bts.c
@@ -0,0 +1,458 @@
+/*
+ * intel-bts.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+
+#include "../../util/cpumap.h"
+#include "../../util/evsel.h"
+#include "../../util/evlist.h"
+#include "../../util/session.h"
+#include "../../util/util.h"
+#include "../../util/pmu.h"
+#include "../../util/debug.h"
+#include "../../util/tsc.h"
+#include "../../util/auxtrace.h"
+#include "../../util/intel-bts.h"
+
+#define KiB(x) ((x) * 1024)
+#define MiB(x) ((x) * 1024 * 1024)
+#define KiB_MASK(x) (KiB(x) - 1)
+#define MiB_MASK(x) (MiB(x) - 1)
+
+#define INTEL_BTS_DFLT_SAMPLE_SIZE KiB(4)
+
+#define INTEL_BTS_MAX_SAMPLE_SIZE KiB(60)
+
+struct intel_bts_snapshot_ref {
+ void *ref_buf;
+ size_t ref_offset;
+ bool wrapped;
+};
+
+struct intel_bts_recording {
+ struct auxtrace_record itr;
+ struct perf_pmu *intel_bts_pmu;
+ struct perf_evlist *evlist;
+ bool snapshot_mode;
+ size_t snapshot_size;
+ int snapshot_ref_cnt;
+ struct intel_bts_snapshot_ref *snapshot_refs;
+};
+
+struct branch {
+ u64 from;
+ u64 to;
+ u64 misc;
+};
+
+static size_t intel_bts_info_priv_size(struct auxtrace_record *itr __maybe_unused)
+{
+ return INTEL_BTS_AUXTRACE_PRIV_SIZE;
+}
+
+static int intel_bts_info_fill(struct auxtrace_record *itr,
+ struct perf_session *session,
+ struct auxtrace_info_event *auxtrace_info,
+ size_t priv_size)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ struct perf_pmu *intel_bts_pmu = btsr->intel_bts_pmu;
+ struct perf_event_mmap_page *pc;
+ struct perf_tsc_conversion tc = { .time_mult = 0, };
+ bool cap_user_time_zero = false;
+ int err;
+
+ if (priv_size != INTEL_BTS_AUXTRACE_PRIV_SIZE)
+ return -EINVAL;
+
+ if (!session->evlist->nr_mmaps)
+ return -EINVAL;
+
+ pc = session->evlist->mmap[0].base;
+ if (pc) {
+ err = perf_read_tsc_conversion(pc, &tc);
+ if (err) {
+ if (err != -EOPNOTSUPP)
+ return err;
+ } else {
+ cap_user_time_zero = tc.time_mult != 0;
+ }
+ if (!cap_user_time_zero)
+ ui__warning("Intel BTS: TSC not available\n");
+ }
+
+ auxtrace_info->type = PERF_AUXTRACE_INTEL_BTS;
+ auxtrace_info->priv[INTEL_BTS_PMU_TYPE] = intel_bts_pmu->type;
+ auxtrace_info->priv[INTEL_BTS_TIME_SHIFT] = tc.time_shift;
+ auxtrace_info->priv[INTEL_BTS_TIME_MULT] = tc.time_mult;
+ auxtrace_info->priv[INTEL_BTS_TIME_ZERO] = tc.time_zero;
+ auxtrace_info->priv[INTEL_BTS_CAP_USER_TIME_ZERO] = cap_user_time_zero;
+ auxtrace_info->priv[INTEL_BTS_SNAPSHOT_MODE] = btsr->snapshot_mode;
+
+ return 0;
+}
+
+static int intel_bts_recording_options(struct auxtrace_record *itr,
+ struct perf_evlist *evlist,
+ struct record_opts *opts)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ struct perf_pmu *intel_bts_pmu = btsr->intel_bts_pmu;
+ struct perf_evsel *evsel, *intel_bts_evsel = NULL;
+ const struct cpu_map *cpus = evlist->cpus;
+ bool privileged = geteuid() == 0 || perf_event_paranoid() < 0;
+
+ btsr->evlist = evlist;
+ btsr->snapshot_mode = opts->auxtrace_snapshot_mode;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == intel_bts_pmu->type) {
+ if (intel_bts_evsel) {
+ pr_err("There may be only one " INTEL_BTS_PMU_NAME " event\n");
+ return -EINVAL;
+ }
+ evsel->attr.freq = 0;
+ evsel->attr.sample_period = 1;
+ intel_bts_evsel = evsel;
+ opts->full_auxtrace = true;
+ }
+ }
+
+ if (opts->auxtrace_snapshot_mode && !opts->full_auxtrace) {
+ pr_err("Snapshot mode (-S option) requires " INTEL_BTS_PMU_NAME " PMU event (-e " INTEL_BTS_PMU_NAME ")\n");
+ return -EINVAL;
+ }
+
+ if (!opts->full_auxtrace)
+ return 0;
+
+ if (opts->full_auxtrace && !cpu_map__empty(cpus)) {
+ pr_err(INTEL_BTS_PMU_NAME " does not support per-cpu recording\n");
+ return -EINVAL;
+ }
+
+ /* Set default sizes for snapshot mode */
+ if (opts->auxtrace_snapshot_mode) {
+ if (!opts->auxtrace_snapshot_size && !opts->auxtrace_mmap_pages) {
+ if (privileged) {
+ opts->auxtrace_mmap_pages = MiB(4) / page_size;
+ } else {
+ opts->auxtrace_mmap_pages = KiB(128) / page_size;
+ if (opts->mmap_pages == UINT_MAX)
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ } else if (!opts->auxtrace_mmap_pages && !privileged &&
+ opts->mmap_pages == UINT_MAX) {
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ if (!opts->auxtrace_snapshot_size)
+ opts->auxtrace_snapshot_size =
+ opts->auxtrace_mmap_pages * (size_t)page_size;
+ if (!opts->auxtrace_mmap_pages) {
+ size_t sz = opts->auxtrace_snapshot_size;
+
+ sz = round_up(sz, page_size) / page_size;
+ opts->auxtrace_mmap_pages = roundup_pow_of_two(sz);
+ }
+ if (opts->auxtrace_snapshot_size >
+ opts->auxtrace_mmap_pages * (size_t)page_size) {
+ pr_err("Snapshot size %zu must not be greater than AUX area tracing mmap size %zu\n",
+ opts->auxtrace_snapshot_size,
+ opts->auxtrace_mmap_pages * (size_t)page_size);
+ return -EINVAL;
+ }
+ if (!opts->auxtrace_snapshot_size || !opts->auxtrace_mmap_pages) {
+ pr_err("Failed to calculate default snapshot size and/or AUX area tracing mmap pages\n");
+ return -EINVAL;
+ }
+ pr_debug2("Intel BTS snapshot size: %zu\n",
+ opts->auxtrace_snapshot_size);
+ }
+
+ /* Set default sizes for full trace mode */
+ if (opts->full_auxtrace && !opts->auxtrace_mmap_pages) {
+ if (privileged) {
+ opts->auxtrace_mmap_pages = MiB(4) / page_size;
+ } else {
+ opts->auxtrace_mmap_pages = KiB(128) / page_size;
+ if (opts->mmap_pages == UINT_MAX)
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ }
+
+ /* Validate auxtrace_mmap_pages */
+ if (opts->auxtrace_mmap_pages) {
+ size_t sz = opts->auxtrace_mmap_pages * (size_t)page_size;
+ size_t min_sz;
+
+ if (opts->auxtrace_snapshot_mode)
+ min_sz = KiB(4);
+ else
+ min_sz = KiB(8);
+
+ if (sz < min_sz || !is_power_of_2(sz)) {
+ pr_err("Invalid mmap size for Intel BTS: must be at least %zuKiB and a power of 2\n",
+ min_sz / 1024);
+ return -EINVAL;
+ }
+ }
+
+ if (intel_bts_evsel) {
+ /*
+ * To obtain the auxtrace buffer file descriptor, the auxtrace event
+ * must come first.
+ */
+ perf_evlist__to_front(evlist, intel_bts_evsel);
+ /*
+ * In the case of per-cpu mmaps, we need the CPU on the
+ * AUX event.
+ */
+ if (!cpu_map__empty(cpus))
+ perf_evsel__set_sample_bit(intel_bts_evsel, CPU);
+ }
+
+ /* Add dummy event to keep tracking */
+ if (opts->full_auxtrace) {
+ struct perf_evsel *tracking_evsel;
+ int err;
+
+ err = parse_events(evlist, "dummy:u", NULL);
+ if (err)
+ return err;
+
+ tracking_evsel = perf_evlist__last(evlist);
+
+ perf_evlist__set_tracking_event(evlist, tracking_evsel);
+
+ tracking_evsel->attr.freq = 0;
+ tracking_evsel->attr.sample_period = 1;
+ }
+
+ return 0;
+}
+
+static int intel_bts_parse_snapshot_options(struct auxtrace_record *itr,
+ struct record_opts *opts,
+ const char *str)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ unsigned long long snapshot_size = 0;
+ char *endptr;
+
+ if (str) {
+ snapshot_size = strtoull(str, &endptr, 0);
+ if (*endptr || snapshot_size > SIZE_MAX)
+ return -1;
+ }
+
+ opts->auxtrace_snapshot_mode = true;
+ opts->auxtrace_snapshot_size = snapshot_size;
+
+ btsr->snapshot_size = snapshot_size;
+
+ return 0;
+}
+
+static u64 intel_bts_reference(struct auxtrace_record *itr __maybe_unused)
+{
+ return rdtsc();
+}
+
+static int intel_bts_alloc_snapshot_refs(struct intel_bts_recording *btsr,
+ int idx)
+{
+ const size_t sz = sizeof(struct intel_bts_snapshot_ref);
+ int cnt = btsr->snapshot_ref_cnt, new_cnt = cnt * 2;
+ struct intel_bts_snapshot_ref *refs;
+
+ if (!new_cnt)
+ new_cnt = 16;
+
+ while (new_cnt <= idx)
+ new_cnt *= 2;
+
+ refs = calloc(new_cnt, sz);
+ if (!refs)
+ return -ENOMEM;
+
+ memcpy(refs, btsr->snapshot_refs, cnt * sz);
+
+ btsr->snapshot_refs = refs;
+ btsr->snapshot_ref_cnt = new_cnt;
+
+ return 0;
+}
+
+static void intel_bts_free_snapshot_refs(struct intel_bts_recording *btsr)
+{
+ int i;
+
+ for (i = 0; i < btsr->snapshot_ref_cnt; i++)
+ zfree(&btsr->snapshot_refs[i].ref_buf);
+ zfree(&btsr->snapshot_refs);
+}
+
+static void intel_bts_recording_free(struct auxtrace_record *itr)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+
+ intel_bts_free_snapshot_refs(btsr);
+ free(btsr);
+}
+
+static int intel_bts_snapshot_start(struct auxtrace_record *itr)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(btsr->evlist, evsel) {
+ if (evsel->attr.type == btsr->intel_bts_pmu->type)
+ return perf_evlist__disable_event(btsr->evlist, evsel);
+ }
+ return -EINVAL;
+}
+
+static int intel_bts_snapshot_finish(struct auxtrace_record *itr)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(btsr->evlist, evsel) {
+ if (evsel->attr.type == btsr->intel_bts_pmu->type)
+ return perf_evlist__enable_event(btsr->evlist, evsel);
+ }
+ return -EINVAL;
+}
+
+static bool intel_bts_first_wrap(u64 *data, size_t buf_size)
+{
+ int i, a, b;
+
+ b = buf_size >> 3;
+ a = b - 512;
+ if (a < 0)
+ a = 0;
+
+ for (i = a; i < b; i++) {
+ if (data[i])
+ return true;
+ }
+
+ return false;
+}
+
+static int intel_bts_find_snapshot(struct auxtrace_record *itr, int idx,
+ struct auxtrace_mmap *mm, unsigned char *data,
+ u64 *head, u64 *old)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ bool wrapped;
+ int err;
+
+ pr_debug3("%s: mmap index %d old head %zu new head %zu\n",
+ __func__, idx, (size_t)*old, (size_t)*head);
+
+ if (idx >= btsr->snapshot_ref_cnt) {
+ err = intel_bts_alloc_snapshot_refs(btsr, idx);
+ if (err)
+ goto out_err;
+ }
+
+ wrapped = btsr->snapshot_refs[idx].wrapped;
+ if (!wrapped && intel_bts_first_wrap((u64 *)data, mm->len)) {
+ btsr->snapshot_refs[idx].wrapped = true;
+ wrapped = true;
+ }
+
+ /*
+ * In full trace mode 'head' continually increases. However in snapshot
+ * mode 'head' is an offset within the buffer. Here 'old' and 'head'
+ * are adjusted to match the full trace case which expects that 'old' is
+ * always less than 'head'.
+ */
+ if (wrapped) {
+ *old = *head;
+ *head += mm->len;
+ } else {
+ if (mm->mask)
+ *old &= mm->mask;
+ else
+ *old %= mm->len;
+ if (*old > *head)
+ *head += mm->len;
+ }
+
+ pr_debug3("%s: wrap-around %sdetected, adjusted old head %zu adjusted new head %zu\n",
+ __func__, wrapped ? "" : "not ", (size_t)*old, (size_t)*head);
+
+ return 0;
+
+out_err:
+ pr_err("%s: failed, error %d\n", __func__, err);
+ return err;
+}
+
+static int intel_bts_read_finish(struct auxtrace_record *itr, int idx)
+{
+ struct intel_bts_recording *btsr =
+ container_of(itr, struct intel_bts_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(btsr->evlist, evsel) {
+ if (evsel->attr.type == btsr->intel_bts_pmu->type)
+ return perf_evlist__enable_event_idx(btsr->evlist,
+ evsel, idx);
+ }
+ return -EINVAL;
+}
+
+struct auxtrace_record *intel_bts_recording_init(int *err)
+{
+ struct perf_pmu *intel_bts_pmu = perf_pmu__find(INTEL_BTS_PMU_NAME);
+ struct intel_bts_recording *btsr;
+
+ if (!intel_bts_pmu)
+ return NULL;
+
+ btsr = zalloc(sizeof(struct intel_bts_recording));
+ if (!btsr) {
+ *err = -ENOMEM;
+ return NULL;
+ }
+
+ btsr->intel_bts_pmu = intel_bts_pmu;
+ btsr->itr.recording_options = intel_bts_recording_options;
+ btsr->itr.info_priv_size = intel_bts_info_priv_size;
+ btsr->itr.info_fill = intel_bts_info_fill;
+ btsr->itr.free = intel_bts_recording_free;
+ btsr->itr.snapshot_start = intel_bts_snapshot_start;
+ btsr->itr.snapshot_finish = intel_bts_snapshot_finish;
+ btsr->itr.find_snapshot = intel_bts_find_snapshot;
+ btsr->itr.parse_snapshot_options = intel_bts_parse_snapshot_options;
+ btsr->itr.reference = intel_bts_reference;
+ btsr->itr.read_finish = intel_bts_read_finish;
+ btsr->itr.alignment = sizeof(struct branch);
+ return &btsr->itr;
+}
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
new file mode 100644
index 000000000000..2ca10d796c0b
--- /dev/null
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -0,0 +1,1007 @@
+/*
+ * intel_pt.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdbool.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+#include <cpuid.h>
+
+#include "../../perf.h"
+#include "../../util/session.h"
+#include "../../util/event.h"
+#include "../../util/evlist.h"
+#include "../../util/evsel.h"
+#include "../../util/cpumap.h"
+#include "../../util/parse-options.h"
+#include "../../util/parse-events.h"
+#include "../../util/pmu.h"
+#include "../../util/debug.h"
+#include "../../util/auxtrace.h"
+#include "../../util/tsc.h"
+#include "../../util/intel-pt.h"
+
+#define KiB(x) ((x) * 1024)
+#define MiB(x) ((x) * 1024 * 1024)
+#define KiB_MASK(x) (KiB(x) - 1)
+#define MiB_MASK(x) (MiB(x) - 1)
+
+#define INTEL_PT_DEFAULT_SAMPLE_SIZE KiB(4)
+
+#define INTEL_PT_MAX_SAMPLE_SIZE KiB(60)
+
+#define INTEL_PT_PSB_PERIOD_NEAR 256
+
+struct intel_pt_snapshot_ref {
+ void *ref_buf;
+ size_t ref_offset;
+ bool wrapped;
+};
+
+struct intel_pt_recording {
+ struct auxtrace_record itr;
+ struct perf_pmu *intel_pt_pmu;
+ int have_sched_switch;
+ struct perf_evlist *evlist;
+ bool snapshot_mode;
+ bool snapshot_init_done;
+ size_t snapshot_size;
+ size_t snapshot_ref_buf_size;
+ int snapshot_ref_cnt;
+ struct intel_pt_snapshot_ref *snapshot_refs;
+};
+
+static int intel_pt_parse_terms_with_default(struct list_head *formats,
+ const char *str,
+ u64 *config)
+{
+ struct list_head *terms;
+ struct perf_event_attr attr = { .size = 0, };
+ int err;
+
+ terms = malloc(sizeof(struct list_head));
+ if (!terms)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(terms);
+
+ err = parse_events_terms(terms, str);
+ if (err)
+ goto out_free;
+
+ attr.config = *config;
+ err = perf_pmu__config_terms(formats, &attr, terms, true, NULL);
+ if (err)
+ goto out_free;
+
+ *config = attr.config;
+out_free:
+ parse_events__free_terms(terms);
+ return err;
+}
+
+static int intel_pt_parse_terms(struct list_head *formats, const char *str,
+ u64 *config)
+{
+ *config = 0;
+ return intel_pt_parse_terms_with_default(formats, str, config);
+}
+
+static u64 intel_pt_masked_bits(u64 mask, u64 bits)
+{
+ const u64 top_bit = 1ULL << 63;
+ u64 res = 0;
+ int i;
+
+ for (i = 0; i < 64; i++) {
+ if (mask & top_bit) {
+ res <<= 1;
+ if (bits & top_bit)
+ res |= 1;
+ }
+ mask <<= 1;
+ bits <<= 1;
+ }
+
+ return res;
+}
+
+static int intel_pt_read_config(struct perf_pmu *intel_pt_pmu, const char *str,
+ struct perf_evlist *evlist, u64 *res)
+{
+ struct perf_evsel *evsel;
+ u64 mask;
+
+ *res = 0;
+
+ mask = perf_pmu__format_bits(&intel_pt_pmu->format, str);
+ if (!mask)
+ return -EINVAL;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == intel_pt_pmu->type) {
+ *res = intel_pt_masked_bits(mask, evsel->attr.config);
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static size_t intel_pt_psb_period(struct perf_pmu *intel_pt_pmu,
+ struct perf_evlist *evlist)
+{
+ u64 val;
+ int err, topa_multiple_entries;
+ size_t psb_period;
+
+ if (perf_pmu__scan_file(intel_pt_pmu, "caps/topa_multiple_entries",
+ "%d", &topa_multiple_entries) != 1)
+ topa_multiple_entries = 0;
+
+ /*
+ * Use caps/topa_multiple_entries to indicate early hardware that had
+ * extra frequent PSBs.
+ */
+ if (!topa_multiple_entries) {
+ psb_period = 256;
+ goto out;
+ }
+
+ err = intel_pt_read_config(intel_pt_pmu, "psb_period", evlist, &val);
+ if (err)
+ val = 0;
+
+ psb_period = 1 << (val + 11);
+out:
+ pr_debug2("%s psb_period %zu\n", intel_pt_pmu->name, psb_period);
+ return psb_period;
+}
+
+static int intel_pt_pick_bit(int bits, int target)
+{
+ int pos, pick = -1;
+
+ for (pos = 0; bits; bits >>= 1, pos++) {
+ if (bits & 1) {
+ if (pos <= target || pick < 0)
+ pick = pos;
+ if (pos >= target)
+ break;
+ }
+ }
+
+ return pick;
+}
+
+static u64 intel_pt_default_config(struct perf_pmu *intel_pt_pmu)
+{
+ char buf[256];
+ int mtc, mtc_periods = 0, mtc_period;
+ int psb_cyc, psb_periods, psb_period;
+ int pos = 0;
+ u64 config;
+
+ pos += scnprintf(buf + pos, sizeof(buf) - pos, "tsc");
+
+ if (perf_pmu__scan_file(intel_pt_pmu, "caps/mtc", "%d",
+ &mtc) != 1)
+ mtc = 1;
+
+ if (mtc) {
+ if (perf_pmu__scan_file(intel_pt_pmu, "caps/mtc_periods", "%x",
+ &mtc_periods) != 1)
+ mtc_periods = 0;
+ if (mtc_periods) {
+ mtc_period = intel_pt_pick_bit(mtc_periods, 3);
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ ",mtc,mtc_period=%d", mtc_period);
+ }
+ }
+
+ if (perf_pmu__scan_file(intel_pt_pmu, "caps/psb_cyc", "%d",
+ &psb_cyc) != 1)
+ psb_cyc = 1;
+
+ if (psb_cyc && mtc_periods) {
+ if (perf_pmu__scan_file(intel_pt_pmu, "caps/psb_periods", "%x",
+ &psb_periods) != 1)
+ psb_periods = 0;
+ if (psb_periods) {
+ psb_period = intel_pt_pick_bit(psb_periods, 3);
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ ",psb_period=%d", psb_period);
+ }
+ }
+
+ pr_debug2("%s default config: %s\n", intel_pt_pmu->name, buf);
+
+ intel_pt_parse_terms(&intel_pt_pmu->format, buf, &config);
+
+ return config;
+}
+
+static int intel_pt_parse_snapshot_options(struct auxtrace_record *itr,
+ struct record_opts *opts,
+ const char *str)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ unsigned long long snapshot_size = 0;
+ char *endptr;
+
+ if (str) {
+ snapshot_size = strtoull(str, &endptr, 0);
+ if (*endptr || snapshot_size > SIZE_MAX)
+ return -1;
+ }
+
+ opts->auxtrace_snapshot_mode = true;
+ opts->auxtrace_snapshot_size = snapshot_size;
+
+ ptr->snapshot_size = snapshot_size;
+
+ return 0;
+}
+
+struct perf_event_attr *
+intel_pt_pmu_default_config(struct perf_pmu *intel_pt_pmu)
+{
+ struct perf_event_attr *attr;
+
+ attr = zalloc(sizeof(struct perf_event_attr));
+ if (!attr)
+ return NULL;
+
+ attr->config = intel_pt_default_config(intel_pt_pmu);
+
+ intel_pt_pmu->selectable = true;
+
+ return attr;
+}
+
+static size_t intel_pt_info_priv_size(struct auxtrace_record *itr __maybe_unused)
+{
+ return INTEL_PT_AUXTRACE_PRIV_SIZE;
+}
+
+static void intel_pt_tsc_ctc_ratio(u32 *n, u32 *d)
+{
+ unsigned int eax = 0, ebx = 0, ecx = 0, edx = 0;
+
+ __get_cpuid(0x15, &eax, &ebx, &ecx, &edx);
+ *n = ebx;
+ *d = eax;
+}
+
+static int intel_pt_info_fill(struct auxtrace_record *itr,
+ struct perf_session *session,
+ struct auxtrace_info_event *auxtrace_info,
+ size_t priv_size)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ struct perf_pmu *intel_pt_pmu = ptr->intel_pt_pmu;
+ struct perf_event_mmap_page *pc;
+ struct perf_tsc_conversion tc = { .time_mult = 0, };
+ bool cap_user_time_zero = false, per_cpu_mmaps;
+ u64 tsc_bit, mtc_bit, mtc_freq_bits, cyc_bit, noretcomp_bit;
+ u32 tsc_ctc_ratio_n, tsc_ctc_ratio_d;
+ int err;
+
+ if (priv_size != INTEL_PT_AUXTRACE_PRIV_SIZE)
+ return -EINVAL;
+
+ intel_pt_parse_terms(&intel_pt_pmu->format, "tsc", &tsc_bit);
+ intel_pt_parse_terms(&intel_pt_pmu->format, "noretcomp",
+ &noretcomp_bit);
+ intel_pt_parse_terms(&intel_pt_pmu->format, "mtc", &mtc_bit);
+ mtc_freq_bits = perf_pmu__format_bits(&intel_pt_pmu->format,
+ "mtc_period");
+ intel_pt_parse_terms(&intel_pt_pmu->format, "cyc", &cyc_bit);
+
+ intel_pt_tsc_ctc_ratio(&tsc_ctc_ratio_n, &tsc_ctc_ratio_d);
+
+ if (!session->evlist->nr_mmaps)
+ return -EINVAL;
+
+ pc = session->evlist->mmap[0].base;
+ if (pc) {
+ err = perf_read_tsc_conversion(pc, &tc);
+ if (err) {
+ if (err != -EOPNOTSUPP)
+ return err;
+ } else {
+ cap_user_time_zero = tc.time_mult != 0;
+ }
+ if (!cap_user_time_zero)
+ ui__warning("Intel Processor Trace: TSC not available\n");
+ }
+
+ per_cpu_mmaps = !cpu_map__empty(session->evlist->cpus);
+
+ auxtrace_info->type = PERF_AUXTRACE_INTEL_PT;
+ auxtrace_info->priv[INTEL_PT_PMU_TYPE] = intel_pt_pmu->type;
+ auxtrace_info->priv[INTEL_PT_TIME_SHIFT] = tc.time_shift;
+ auxtrace_info->priv[INTEL_PT_TIME_MULT] = tc.time_mult;
+ auxtrace_info->priv[INTEL_PT_TIME_ZERO] = tc.time_zero;
+ auxtrace_info->priv[INTEL_PT_CAP_USER_TIME_ZERO] = cap_user_time_zero;
+ auxtrace_info->priv[INTEL_PT_TSC_BIT] = tsc_bit;
+ auxtrace_info->priv[INTEL_PT_NORETCOMP_BIT] = noretcomp_bit;
+ auxtrace_info->priv[INTEL_PT_HAVE_SCHED_SWITCH] = ptr->have_sched_switch;
+ auxtrace_info->priv[INTEL_PT_SNAPSHOT_MODE] = ptr->snapshot_mode;
+ auxtrace_info->priv[INTEL_PT_PER_CPU_MMAPS] = per_cpu_mmaps;
+ auxtrace_info->priv[INTEL_PT_MTC_BIT] = mtc_bit;
+ auxtrace_info->priv[INTEL_PT_MTC_FREQ_BITS] = mtc_freq_bits;
+ auxtrace_info->priv[INTEL_PT_TSC_CTC_N] = tsc_ctc_ratio_n;
+ auxtrace_info->priv[INTEL_PT_TSC_CTC_D] = tsc_ctc_ratio_d;
+ auxtrace_info->priv[INTEL_PT_CYC_BIT] = cyc_bit;
+
+ return 0;
+}
+
+static int intel_pt_track_switches(struct perf_evlist *evlist)
+{
+ const char *sched_switch = "sched:sched_switch";
+ struct perf_evsel *evsel;
+ int err;
+
+ if (!perf_evlist__can_select_event(evlist, sched_switch))
+ return -EPERM;
+
+ err = parse_events(evlist, sched_switch, NULL);
+ if (err) {
+ pr_debug2("%s: failed to parse %s, error %d\n",
+ __func__, sched_switch, err);
+ return err;
+ }
+
+ evsel = perf_evlist__last(evlist);
+
+ perf_evsel__set_sample_bit(evsel, CPU);
+ perf_evsel__set_sample_bit(evsel, TIME);
+
+ evsel->system_wide = true;
+ evsel->no_aux_samples = true;
+ evsel->immediate = true;
+
+ return 0;
+}
+
+static void intel_pt_valid_str(char *str, size_t len, u64 valid)
+{
+ unsigned int val, last = 0, state = 1;
+ int p = 0;
+
+ str[0] = '\0';
+
+ for (val = 0; val <= 64; val++, valid >>= 1) {
+ if (valid & 1) {
+ last = val;
+ switch (state) {
+ case 0:
+ p += scnprintf(str + p, len - p, ",");
+ /* Fall through */
+ case 1:
+ p += scnprintf(str + p, len - p, "%u", val);
+ state = 2;
+ break;
+ case 2:
+ state = 3;
+ break;
+ case 3:
+ state = 4;
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (state) {
+ case 3:
+ p += scnprintf(str + p, len - p, ",%u", last);
+ state = 0;
+ break;
+ case 4:
+ p += scnprintf(str + p, len - p, "-%u", last);
+ state = 0;
+ break;
+ default:
+ break;
+ }
+ if (state != 1)
+ state = 0;
+ }
+ }
+}
+
+static int intel_pt_val_config_term(struct perf_pmu *intel_pt_pmu,
+ const char *caps, const char *name,
+ const char *supported, u64 config)
+{
+ char valid_str[256];
+ unsigned int shift;
+ unsigned long long valid;
+ u64 bits;
+ int ok;
+
+ if (perf_pmu__scan_file(intel_pt_pmu, caps, "%llx", &valid) != 1)
+ valid = 0;
+
+ if (supported &&
+ perf_pmu__scan_file(intel_pt_pmu, supported, "%d", &ok) == 1 && !ok)
+ valid = 0;
+
+ valid |= 1;
+
+ bits = perf_pmu__format_bits(&intel_pt_pmu->format, name);
+
+ config &= bits;
+
+ for (shift = 0; bits && !(bits & 1); shift++)
+ bits >>= 1;
+
+ config >>= shift;
+
+ if (config > 63)
+ goto out_err;
+
+ if (valid & (1 << config))
+ return 0;
+out_err:
+ intel_pt_valid_str(valid_str, sizeof(valid_str), valid);
+ pr_err("Invalid %s for %s. Valid values are: %s\n",
+ name, INTEL_PT_PMU_NAME, valid_str);
+ return -EINVAL;
+}
+
+static int intel_pt_validate_config(struct perf_pmu *intel_pt_pmu,
+ struct perf_evsel *evsel)
+{
+ int err;
+
+ if (!evsel)
+ return 0;
+
+ err = intel_pt_val_config_term(intel_pt_pmu, "caps/cycle_thresholds",
+ "cyc_thresh", "caps/psb_cyc",
+ evsel->attr.config);
+ if (err)
+ return err;
+
+ err = intel_pt_val_config_term(intel_pt_pmu, "caps/mtc_periods",
+ "mtc_period", "caps/mtc",
+ evsel->attr.config);
+ if (err)
+ return err;
+
+ return intel_pt_val_config_term(intel_pt_pmu, "caps/psb_periods",
+ "psb_period", "caps/psb_cyc",
+ evsel->attr.config);
+}
+
+static int intel_pt_recording_options(struct auxtrace_record *itr,
+ struct perf_evlist *evlist,
+ struct record_opts *opts)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ struct perf_pmu *intel_pt_pmu = ptr->intel_pt_pmu;
+ bool have_timing_info;
+ struct perf_evsel *evsel, *intel_pt_evsel = NULL;
+ const struct cpu_map *cpus = evlist->cpus;
+ bool privileged = geteuid() == 0 || perf_event_paranoid() < 0;
+ u64 tsc_bit;
+ int err;
+
+ ptr->evlist = evlist;
+ ptr->snapshot_mode = opts->auxtrace_snapshot_mode;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == intel_pt_pmu->type) {
+ if (intel_pt_evsel) {
+ pr_err("There may be only one " INTEL_PT_PMU_NAME " event\n");
+ return -EINVAL;
+ }
+ evsel->attr.freq = 0;
+ evsel->attr.sample_period = 1;
+ intel_pt_evsel = evsel;
+ opts->full_auxtrace = true;
+ }
+ }
+
+ if (opts->auxtrace_snapshot_mode && !opts->full_auxtrace) {
+ pr_err("Snapshot mode (-S option) requires " INTEL_PT_PMU_NAME " PMU event (-e " INTEL_PT_PMU_NAME ")\n");
+ return -EINVAL;
+ }
+
+ if (opts->use_clockid) {
+ pr_err("Cannot use clockid (-k option) with " INTEL_PT_PMU_NAME "\n");
+ return -EINVAL;
+ }
+
+ if (!opts->full_auxtrace)
+ return 0;
+
+ err = intel_pt_validate_config(intel_pt_pmu, intel_pt_evsel);
+ if (err)
+ return err;
+
+ /* Set default sizes for snapshot mode */
+ if (opts->auxtrace_snapshot_mode) {
+ size_t psb_period = intel_pt_psb_period(intel_pt_pmu, evlist);
+
+ if (!opts->auxtrace_snapshot_size && !opts->auxtrace_mmap_pages) {
+ if (privileged) {
+ opts->auxtrace_mmap_pages = MiB(4) / page_size;
+ } else {
+ opts->auxtrace_mmap_pages = KiB(128) / page_size;
+ if (opts->mmap_pages == UINT_MAX)
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ } else if (!opts->auxtrace_mmap_pages && !privileged &&
+ opts->mmap_pages == UINT_MAX) {
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ if (!opts->auxtrace_snapshot_size)
+ opts->auxtrace_snapshot_size =
+ opts->auxtrace_mmap_pages * (size_t)page_size;
+ if (!opts->auxtrace_mmap_pages) {
+ size_t sz = opts->auxtrace_snapshot_size;
+
+ sz = round_up(sz, page_size) / page_size;
+ opts->auxtrace_mmap_pages = roundup_pow_of_two(sz);
+ }
+ if (opts->auxtrace_snapshot_size >
+ opts->auxtrace_mmap_pages * (size_t)page_size) {
+ pr_err("Snapshot size %zu must not be greater than AUX area tracing mmap size %zu\n",
+ opts->auxtrace_snapshot_size,
+ opts->auxtrace_mmap_pages * (size_t)page_size);
+ return -EINVAL;
+ }
+ if (!opts->auxtrace_snapshot_size || !opts->auxtrace_mmap_pages) {
+ pr_err("Failed to calculate default snapshot size and/or AUX area tracing mmap pages\n");
+ return -EINVAL;
+ }
+ pr_debug2("Intel PT snapshot size: %zu\n",
+ opts->auxtrace_snapshot_size);
+ if (psb_period &&
+ opts->auxtrace_snapshot_size <= psb_period +
+ INTEL_PT_PSB_PERIOD_NEAR)
+ ui__warning("Intel PT snapshot size (%zu) may be too small for PSB period (%zu)\n",
+ opts->auxtrace_snapshot_size, psb_period);
+ }
+
+ /* Set default sizes for full trace mode */
+ if (opts->full_auxtrace && !opts->auxtrace_mmap_pages) {
+ if (privileged) {
+ opts->auxtrace_mmap_pages = MiB(4) / page_size;
+ } else {
+ opts->auxtrace_mmap_pages = KiB(128) / page_size;
+ if (opts->mmap_pages == UINT_MAX)
+ opts->mmap_pages = KiB(256) / page_size;
+ }
+ }
+
+ /* Validate auxtrace_mmap_pages */
+ if (opts->auxtrace_mmap_pages) {
+ size_t sz = opts->auxtrace_mmap_pages * (size_t)page_size;
+ size_t min_sz;
+
+ if (opts->auxtrace_snapshot_mode)
+ min_sz = KiB(4);
+ else
+ min_sz = KiB(8);
+
+ if (sz < min_sz || !is_power_of_2(sz)) {
+ pr_err("Invalid mmap size for Intel Processor Trace: must be at least %zuKiB and a power of 2\n",
+ min_sz / 1024);
+ return -EINVAL;
+ }
+ }
+
+ intel_pt_parse_terms(&intel_pt_pmu->format, "tsc", &tsc_bit);
+
+ if (opts->full_auxtrace && (intel_pt_evsel->attr.config & tsc_bit))
+ have_timing_info = true;
+ else
+ have_timing_info = false;
+
+ /*
+ * Per-cpu recording needs sched_switch events to distinguish different
+ * threads.
+ */
+ if (have_timing_info && !cpu_map__empty(cpus)) {
+ err = intel_pt_track_switches(evlist);
+ if (err == -EPERM)
+ pr_debug2("Unable to select sched:sched_switch\n");
+ else if (err)
+ return err;
+ else
+ ptr->have_sched_switch = 1;
+ }
+
+ if (intel_pt_evsel) {
+ /*
+ * To obtain the auxtrace buffer file descriptor, the auxtrace
+ * event must come first.
+ */
+ perf_evlist__to_front(evlist, intel_pt_evsel);
+ /*
+ * In the case of per-cpu mmaps, we need the CPU on the
+ * AUX event.
+ */
+ if (!cpu_map__empty(cpus))
+ perf_evsel__set_sample_bit(intel_pt_evsel, CPU);
+ }
+
+ /* Add dummy event to keep tracking */
+ if (opts->full_auxtrace) {
+ struct perf_evsel *tracking_evsel;
+
+ err = parse_events(evlist, "dummy:u", NULL);
+ if (err)
+ return err;
+
+ tracking_evsel = perf_evlist__last(evlist);
+
+ perf_evlist__set_tracking_event(evlist, tracking_evsel);
+
+ tracking_evsel->attr.freq = 0;
+ tracking_evsel->attr.sample_period = 1;
+
+ /* In per-cpu case, always need the time of mmap events etc */
+ if (!cpu_map__empty(cpus))
+ perf_evsel__set_sample_bit(tracking_evsel, TIME);
+ }
+
+ /*
+ * Warn the user when we do not have enough information to decode i.e.
+ * per-cpu with no sched_switch (except workload-only).
+ */
+ if (!ptr->have_sched_switch && !cpu_map__empty(cpus) &&
+ !target__none(&opts->target))
+ ui__warning("Intel Processor Trace decoding will not be possible except for kernel tracing!\n");
+
+ return 0;
+}
+
+static int intel_pt_snapshot_start(struct auxtrace_record *itr)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(ptr->evlist, evsel) {
+ if (evsel->attr.type == ptr->intel_pt_pmu->type)
+ return perf_evlist__disable_event(ptr->evlist, evsel);
+ }
+ return -EINVAL;
+}
+
+static int intel_pt_snapshot_finish(struct auxtrace_record *itr)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(ptr->evlist, evsel) {
+ if (evsel->attr.type == ptr->intel_pt_pmu->type)
+ return perf_evlist__enable_event(ptr->evlist, evsel);
+ }
+ return -EINVAL;
+}
+
+static int intel_pt_alloc_snapshot_refs(struct intel_pt_recording *ptr, int idx)
+{
+ const size_t sz = sizeof(struct intel_pt_snapshot_ref);
+ int cnt = ptr->snapshot_ref_cnt, new_cnt = cnt * 2;
+ struct intel_pt_snapshot_ref *refs;
+
+ if (!new_cnt)
+ new_cnt = 16;
+
+ while (new_cnt <= idx)
+ new_cnt *= 2;
+
+ refs = calloc(new_cnt, sz);
+ if (!refs)
+ return -ENOMEM;
+
+ memcpy(refs, ptr->snapshot_refs, cnt * sz);
+
+ ptr->snapshot_refs = refs;
+ ptr->snapshot_ref_cnt = new_cnt;
+
+ return 0;
+}
+
+static void intel_pt_free_snapshot_refs(struct intel_pt_recording *ptr)
+{
+ int i;
+
+ for (i = 0; i < ptr->snapshot_ref_cnt; i++)
+ zfree(&ptr->snapshot_refs[i].ref_buf);
+ zfree(&ptr->snapshot_refs);
+}
+
+static void intel_pt_recording_free(struct auxtrace_record *itr)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+
+ intel_pt_free_snapshot_refs(ptr);
+ free(ptr);
+}
+
+static int intel_pt_alloc_snapshot_ref(struct intel_pt_recording *ptr, int idx,
+ size_t snapshot_buf_size)
+{
+ size_t ref_buf_size = ptr->snapshot_ref_buf_size;
+ void *ref_buf;
+
+ ref_buf = zalloc(ref_buf_size);
+ if (!ref_buf)
+ return -ENOMEM;
+
+ ptr->snapshot_refs[idx].ref_buf = ref_buf;
+ ptr->snapshot_refs[idx].ref_offset = snapshot_buf_size - ref_buf_size;
+
+ return 0;
+}
+
+static size_t intel_pt_snapshot_ref_buf_size(struct intel_pt_recording *ptr,
+ size_t snapshot_buf_size)
+{
+ const size_t max_size = 256 * 1024;
+ size_t buf_size = 0, psb_period;
+
+ if (ptr->snapshot_size <= 64 * 1024)
+ return 0;
+
+ psb_period = intel_pt_psb_period(ptr->intel_pt_pmu, ptr->evlist);
+ if (psb_period)
+ buf_size = psb_period * 2;
+
+ if (!buf_size || buf_size > max_size)
+ buf_size = max_size;
+
+ if (buf_size >= snapshot_buf_size)
+ return 0;
+
+ if (buf_size >= ptr->snapshot_size / 2)
+ return 0;
+
+ return buf_size;
+}
+
+static int intel_pt_snapshot_init(struct intel_pt_recording *ptr,
+ size_t snapshot_buf_size)
+{
+ if (ptr->snapshot_init_done)
+ return 0;
+
+ ptr->snapshot_init_done = true;
+
+ ptr->snapshot_ref_buf_size = intel_pt_snapshot_ref_buf_size(ptr,
+ snapshot_buf_size);
+
+ return 0;
+}
+
+/**
+ * intel_pt_compare_buffers - compare bytes in a buffer to a circular buffer.
+ * @buf1: first buffer
+ * @compare_size: number of bytes to compare
+ * @buf2: second buffer (a circular buffer)
+ * @offs2: offset in second buffer
+ * @buf2_size: size of second buffer
+ *
+ * The comparison allows for the possibility that the bytes to compare in the
+ * circular buffer are not contiguous. It is assumed that @compare_size <=
+ * @buf2_size. This function returns %false if the bytes are identical, %true
+ * otherwise.
+ */
+static bool intel_pt_compare_buffers(void *buf1, size_t compare_size,
+ void *buf2, size_t offs2, size_t buf2_size)
+{
+ size_t end2 = offs2 + compare_size, part_size;
+
+ if (end2 <= buf2_size)
+ return memcmp(buf1, buf2 + offs2, compare_size);
+
+ part_size = end2 - buf2_size;
+ if (memcmp(buf1, buf2 + offs2, part_size))
+ return true;
+
+ compare_size -= part_size;
+
+ return memcmp(buf1 + part_size, buf2, compare_size);
+}
+
+static bool intel_pt_compare_ref(void *ref_buf, size_t ref_offset,
+ size_t ref_size, size_t buf_size,
+ void *data, size_t head)
+{
+ size_t ref_end = ref_offset + ref_size;
+
+ if (ref_end > buf_size) {
+ if (head > ref_offset || head < ref_end - buf_size)
+ return true;
+ } else if (head > ref_offset && head < ref_end) {
+ return true;
+ }
+
+ return intel_pt_compare_buffers(ref_buf, ref_size, data, ref_offset,
+ buf_size);
+}
+
+static void intel_pt_copy_ref(void *ref_buf, size_t ref_size, size_t buf_size,
+ void *data, size_t head)
+{
+ if (head >= ref_size) {
+ memcpy(ref_buf, data + head - ref_size, ref_size);
+ } else {
+ memcpy(ref_buf, data, head);
+ ref_size -= head;
+ memcpy(ref_buf + head, data + buf_size - ref_size, ref_size);
+ }
+}
+
+static bool intel_pt_wrapped(struct intel_pt_recording *ptr, int idx,
+ struct auxtrace_mmap *mm, unsigned char *data,
+ u64 head)
+{
+ struct intel_pt_snapshot_ref *ref = &ptr->snapshot_refs[idx];
+ bool wrapped;
+
+ wrapped = intel_pt_compare_ref(ref->ref_buf, ref->ref_offset,
+ ptr->snapshot_ref_buf_size, mm->len,
+ data, head);
+
+ intel_pt_copy_ref(ref->ref_buf, ptr->snapshot_ref_buf_size, mm->len,
+ data, head);
+
+ return wrapped;
+}
+
+static bool intel_pt_first_wrap(u64 *data, size_t buf_size)
+{
+ int i, a, b;
+
+ b = buf_size >> 3;
+ a = b - 512;
+ if (a < 0)
+ a = 0;
+
+ for (i = a; i < b; i++) {
+ if (data[i])
+ return true;
+ }
+
+ return false;
+}
+
+static int intel_pt_find_snapshot(struct auxtrace_record *itr, int idx,
+ struct auxtrace_mmap *mm, unsigned char *data,
+ u64 *head, u64 *old)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ bool wrapped;
+ int err;
+
+ pr_debug3("%s: mmap index %d old head %zu new head %zu\n",
+ __func__, idx, (size_t)*old, (size_t)*head);
+
+ err = intel_pt_snapshot_init(ptr, mm->len);
+ if (err)
+ goto out_err;
+
+ if (idx >= ptr->snapshot_ref_cnt) {
+ err = intel_pt_alloc_snapshot_refs(ptr, idx);
+ if (err)
+ goto out_err;
+ }
+
+ if (ptr->snapshot_ref_buf_size) {
+ if (!ptr->snapshot_refs[idx].ref_buf) {
+ err = intel_pt_alloc_snapshot_ref(ptr, idx, mm->len);
+ if (err)
+ goto out_err;
+ }
+ wrapped = intel_pt_wrapped(ptr, idx, mm, data, *head);
+ } else {
+ wrapped = ptr->snapshot_refs[idx].wrapped;
+ if (!wrapped && intel_pt_first_wrap((u64 *)data, mm->len)) {
+ ptr->snapshot_refs[idx].wrapped = true;
+ wrapped = true;
+ }
+ }
+
+ /*
+ * In full trace mode 'head' continually increases. However in snapshot
+ * mode 'head' is an offset within the buffer. Here 'old' and 'head'
+ * are adjusted to match the full trace case which expects that 'old' is
+ * always less than 'head'.
+ */
+ if (wrapped) {
+ *old = *head;
+ *head += mm->len;
+ } else {
+ if (mm->mask)
+ *old &= mm->mask;
+ else
+ *old %= mm->len;
+ if (*old > *head)
+ *head += mm->len;
+ }
+
+ pr_debug3("%s: wrap-around %sdetected, adjusted old head %zu adjusted new head %zu\n",
+ __func__, wrapped ? "" : "not ", (size_t)*old, (size_t)*head);
+
+ return 0;
+
+out_err:
+ pr_err("%s: failed, error %d\n", __func__, err);
+ return err;
+}
+
+static u64 intel_pt_reference(struct auxtrace_record *itr __maybe_unused)
+{
+ return rdtsc();
+}
+
+static int intel_pt_read_finish(struct auxtrace_record *itr, int idx)
+{
+ struct intel_pt_recording *ptr =
+ container_of(itr, struct intel_pt_recording, itr);
+ struct perf_evsel *evsel;
+
+ evlist__for_each(ptr->evlist, evsel) {
+ if (evsel->attr.type == ptr->intel_pt_pmu->type)
+ return perf_evlist__enable_event_idx(ptr->evlist, evsel,
+ idx);
+ }
+ return -EINVAL;
+}
+
+struct auxtrace_record *intel_pt_recording_init(int *err)
+{
+ struct perf_pmu *intel_pt_pmu = perf_pmu__find(INTEL_PT_PMU_NAME);
+ struct intel_pt_recording *ptr;
+
+ if (!intel_pt_pmu)
+ return NULL;
+
+ ptr = zalloc(sizeof(struct intel_pt_recording));
+ if (!ptr) {
+ *err = -ENOMEM;
+ return NULL;
+ }
+
+ ptr->intel_pt_pmu = intel_pt_pmu;
+ ptr->itr.recording_options = intel_pt_recording_options;
+ ptr->itr.info_priv_size = intel_pt_info_priv_size;
+ ptr->itr.info_fill = intel_pt_info_fill;
+ ptr->itr.free = intel_pt_recording_free;
+ ptr->itr.snapshot_start = intel_pt_snapshot_start;
+ ptr->itr.snapshot_finish = intel_pt_snapshot_finish;
+ ptr->itr.find_snapshot = intel_pt_find_snapshot;
+ ptr->itr.parse_snapshot_options = intel_pt_parse_snapshot_options;
+ ptr->itr.reference = intel_pt_reference;
+ ptr->itr.read_finish = intel_pt_read_finish;
+ return &ptr->itr;
+}
diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c
new file mode 100644
index 000000000000..79fe07158d00
--- /dev/null
+++ b/tools/perf/arch/x86/util/pmu.c
@@ -0,0 +1,18 @@
+#include <string.h>
+
+#include <linux/perf_event.h>
+
+#include "../../util/intel-pt.h"
+#include "../../util/intel-bts.h"
+#include "../../util/pmu.h"
+
+struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu __maybe_unused)
+{
+#ifdef HAVE_AUXTRACE_SUPPORT
+ if (!strcmp(pmu->name, INTEL_PT_PMU_NAME))
+ return intel_pt_pmu_default_config(pmu);
+ if (!strcmp(pmu->name, INTEL_BTS_PMU_NAME))
+ pmu->selectable = true;
+#endif
+ return NULL;
+}
diff --git a/tools/perf/arch/xtensa/Build b/tools/perf/arch/xtensa/Build
new file mode 100644
index 000000000000..54afe4a467e7
--- /dev/null
+++ b/tools/perf/arch/xtensa/Build
@@ -0,0 +1 @@
+libperf-y += util/
diff --git a/tools/perf/arch/xtensa/Makefile b/tools/perf/arch/xtensa/Makefile
new file mode 100644
index 000000000000..7fbca175099e
--- /dev/null
+++ b/tools/perf/arch/xtensa/Makefile
@@ -0,0 +1,3 @@
+ifndef NO_DWARF
+PERF_HAVE_DWARF_REGS := 1
+endif
diff --git a/tools/perf/arch/xtensa/util/Build b/tools/perf/arch/xtensa/util/Build
new file mode 100644
index 000000000000..954e287bbb89
--- /dev/null
+++ b/tools/perf/arch/xtensa/util/Build
@@ -0,0 +1 @@
+libperf-$(CONFIG_DWARF) += dwarf-regs.o
diff --git a/tools/perf/arch/xtensa/util/dwarf-regs.c b/tools/perf/arch/xtensa/util/dwarf-regs.c
new file mode 100644
index 000000000000..4dba76bfb4ce
--- /dev/null
+++ b/tools/perf/arch/xtensa/util/dwarf-regs.c
@@ -0,0 +1,25 @@
+/*
+ * Mapping of DWARF debug register numbers into register names.
+ *
+ * Copyright (c) 2015 Cadence Design Systems Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <stddef.h>
+#include <dwarf-regs.h>
+
+#define XTENSA_MAX_REGS 16
+
+const char *xtensa_regs_table[XTENSA_MAX_REGS] = {
+ "a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7",
+ "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15",
+};
+
+const char *get_arch_regstr(unsigned int n)
+{
+ return n < XTENSA_MAX_REGS ? xtensa_regs_table[n] : NULL;
+}
diff --git a/tools/perf/bench/Build b/tools/perf/bench/Build
index c3ab760e06b4..573e28896038 100644
--- a/tools/perf/bench/Build
+++ b/tools/perf/bench/Build
@@ -5,6 +5,7 @@ perf-y += futex-hash.o
perf-y += futex-wake.o
perf-y += futex-wake-parallel.o
perf-y += futex-requeue.o
+perf-y += futex-lock-pi.o
perf-$(CONFIG_X86_64) += mem-memcpy-x86-64-asm.o
perf-$(CONFIG_X86_64) += mem-memset-x86-64-asm.o
diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h
index 70b2f718cc21..a50df86f2b9b 100644
--- a/tools/perf/bench/bench.h
+++ b/tools/perf/bench/bench.h
@@ -36,6 +36,8 @@ extern int bench_futex_wake(int argc, const char **argv, const char *prefix);
extern int bench_futex_wake_parallel(int argc, const char **argv,
const char *prefix);
extern int bench_futex_requeue(int argc, const char **argv, const char *prefix);
+/* pi futexes */
+extern int bench_futex_lock_pi(int argc, const char **argv, const char *prefix);
#define BENCH_FORMAT_DEFAULT_STR "default"
#define BENCH_FORMAT_DEFAULT 0
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
new file mode 100644
index 000000000000..bc6a16adbca8
--- /dev/null
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -0,0 +1,219 @@
+/*
+ * Copyright (C) 2015 Davidlohr Bueso.
+ */
+
+#include "../perf.h"
+#include "../util/util.h"
+#include "../util/stat.h"
+#include "../util/parse-options.h"
+#include "../util/header.h"
+#include "bench.h"
+#include "futex.h"
+
+#include <err.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <pthread.h>
+
+struct worker {
+ int tid;
+ u_int32_t *futex;
+ pthread_t thread;
+ unsigned long ops;
+};
+
+static u_int32_t global_futex = 0;
+static struct worker *worker;
+static unsigned int nsecs = 10;
+static bool silent = false, multi = false;
+static bool done = false, fshared = false;
+static unsigned int ncpus, nthreads = 0;
+static int futex_flag = 0;
+struct timeval start, end, runtime;
+static pthread_mutex_t thread_lock;
+static unsigned int threads_starting;
+static struct stats throughput_stats;
+static pthread_cond_t thread_parent, thread_worker;
+
+static const struct option options[] = {
+ OPT_UINTEGER('t', "threads", &nthreads, "Specify amount of threads"),
+ OPT_UINTEGER('r', "runtime", &nsecs, "Specify runtime (in seconds)"),
+ OPT_BOOLEAN( 'M', "multi", &multi, "Use multiple futexes"),
+ OPT_BOOLEAN( 's', "silent", &silent, "Silent mode: do not display data/details"),
+ OPT_BOOLEAN( 'S', "shared", &fshared, "Use shared futexes instead of private ones"),
+ OPT_END()
+};
+
+static const char * const bench_futex_lock_pi_usage[] = {
+ "perf bench futex requeue <options>",
+ NULL
+};
+
+static void print_summary(void)
+{
+ unsigned long avg = avg_stats(&throughput_stats);
+ double stddev = stddev_stats(&throughput_stats);
+
+ printf("%sAveraged %ld operations/sec (+- %.2f%%), total secs = %d\n",
+ !silent ? "\n" : "", avg, rel_stddev_stats(stddev, avg),
+ (int) runtime.tv_sec);
+}
+
+static void toggle_done(int sig __maybe_unused,
+ siginfo_t *info __maybe_unused,
+ void *uc __maybe_unused)
+{
+ /* inform all threads that we're done for the day */
+ done = true;
+ gettimeofday(&end, NULL);
+ timersub(&end, &start, &runtime);
+}
+
+static void *workerfn(void *arg)
+{
+ struct worker *w = (struct worker *) arg;
+
+ pthread_mutex_lock(&thread_lock);
+ threads_starting--;
+ if (!threads_starting)
+ pthread_cond_signal(&thread_parent);
+ pthread_cond_wait(&thread_worker, &thread_lock);
+ pthread_mutex_unlock(&thread_lock);
+
+ do {
+ int ret;
+ again:
+ ret = futex_lock_pi(w->futex, NULL, 0, futex_flag);
+
+ if (ret) { /* handle lock acquisition */
+ if (!silent)
+ warn("thread %d: Could not lock pi-lock for %p (%d)",
+ w->tid, w->futex, ret);
+ if (done)
+ break;
+
+ goto again;
+ }
+
+ usleep(1);
+ ret = futex_unlock_pi(w->futex, futex_flag);
+ if (ret && !silent)
+ warn("thread %d: Could not unlock pi-lock for %p (%d)",
+ w->tid, w->futex, ret);
+ w->ops++; /* account for thread's share of work */
+ } while (!done);
+
+ return NULL;
+}
+
+static void create_threads(struct worker *w, pthread_attr_t thread_attr)
+{
+ cpu_set_t cpu;
+ unsigned int i;
+
+ threads_starting = nthreads;
+
+ for (i = 0; i < nthreads; i++) {
+ worker[i].tid = i;
+
+ if (multi) {
+ worker[i].futex = calloc(1, sizeof(u_int32_t));
+ if (!worker[i].futex)
+ err(EXIT_FAILURE, "calloc");
+ } else
+ worker[i].futex = &global_futex;
+
+ CPU_ZERO(&cpu);
+ CPU_SET(i % ncpus, &cpu);
+
+ if (pthread_attr_setaffinity_np(&thread_attr, sizeof(cpu_set_t), &cpu))
+ err(EXIT_FAILURE, "pthread_attr_setaffinity_np");
+
+ if (pthread_create(&w[i].thread, &thread_attr, workerfn, &worker[i]))
+ err(EXIT_FAILURE, "pthread_create");
+ }
+}
+
+int bench_futex_lock_pi(int argc, const char **argv,
+ const char *prefix __maybe_unused)
+{
+ int ret = 0;
+ unsigned int i;
+ struct sigaction act;
+ pthread_attr_t thread_attr;
+
+ argc = parse_options(argc, argv, options, bench_futex_lock_pi_usage, 0);
+ if (argc)
+ goto err;
+
+ ncpus = sysconf(_SC_NPROCESSORS_ONLN);
+
+ sigfillset(&act.sa_mask);
+ act.sa_sigaction = toggle_done;
+ sigaction(SIGINT, &act, NULL);
+
+ if (!nthreads)
+ nthreads = ncpus;
+
+ worker = calloc(nthreads, sizeof(*worker));
+ if (!worker)
+ err(EXIT_FAILURE, "calloc");
+
+ if (!fshared)
+ futex_flag = FUTEX_PRIVATE_FLAG;
+
+ printf("Run summary [PID %d]: %d threads doing pi lock/unlock pairing for %d secs.\n\n",
+ getpid(), nthreads, nsecs);
+
+ init_stats(&throughput_stats);
+ pthread_mutex_init(&thread_lock, NULL);
+ pthread_cond_init(&thread_parent, NULL);
+ pthread_cond_init(&thread_worker, NULL);
+
+ threads_starting = nthreads;
+ pthread_attr_init(&thread_attr);
+ gettimeofday(&start, NULL);
+
+ create_threads(worker, thread_attr);
+ pthread_attr_destroy(&thread_attr);
+
+ pthread_mutex_lock(&thread_lock);
+ while (threads_starting)
+ pthread_cond_wait(&thread_parent, &thread_lock);
+ pthread_cond_broadcast(&thread_worker);
+ pthread_mutex_unlock(&thread_lock);
+
+ sleep(nsecs);
+ toggle_done(0, NULL, NULL);
+
+ for (i = 0; i < nthreads; i++) {
+ ret = pthread_join(worker[i].thread, NULL);
+ if (ret)
+ err(EXIT_FAILURE, "pthread_join");
+ }
+
+ /* cleanup & report results */
+ pthread_cond_destroy(&thread_parent);
+ pthread_cond_destroy(&thread_worker);
+ pthread_mutex_destroy(&thread_lock);
+
+ for (i = 0; i < nthreads; i++) {
+ unsigned long t = worker[i].ops/runtime.tv_sec;
+
+ update_stats(&throughput_stats, t);
+ if (!silent)
+ printf("[thread %3d] futex: %p [ %ld ops/sec ]\n",
+ worker[i].tid, worker[i].futex, t);
+
+ if (multi)
+ free(worker[i].futex);
+ }
+
+ print_summary();
+
+ free(worker);
+ return ret;
+err:
+ usage_with_options(bench_futex_lock_pi_usage, options);
+ exit(EXIT_FAILURE);
+}
diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h
index 7ed22ff1e1ac..d44de9f44281 100644
--- a/tools/perf/bench/futex.h
+++ b/tools/perf/bench/futex.h
@@ -56,6 +56,26 @@ futex_wake(u_int32_t *uaddr, int nr_wake, int opflags)
}
/**
+ * futex_lock_pi() - block on uaddr as a PI mutex
+ * @detect: whether (1) or not (0) to perform deadlock detection
+ */
+static inline int
+futex_lock_pi(u_int32_t *uaddr, struct timespec *timeout, int detect,
+ int opflags)
+{
+ return futex(uaddr, FUTEX_LOCK_PI, detect, timeout, NULL, 0, opflags);
+}
+
+/**
+ * futex_unlock_pi() - release uaddr as a PI mutex, waking the top waiter
+ */
+static inline int
+futex_unlock_pi(u_int32_t *uaddr, int opflags)
+{
+ return futex(uaddr, FUTEX_UNLOCK_PI, 0, NULL, NULL, 0, opflags);
+}
+
+/**
* futex_cmp_requeue() - requeue tasks from uaddr to uaddr2
* @nr_wake: wake up to this many tasks
* @nr_requeue: requeue up to this many tasks
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 2c1bec39c30e..8edc205ff9a7 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -67,6 +67,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
rb_erase(&al->sym->rb_node,
&al->map->dso->symbols[al->map->type]);
symbol__delete(al->sym);
+ dso__reset_find_symbol_cache(al->map->dso);
}
return 0;
}
@@ -187,6 +188,7 @@ find_next:
* symbol, free he->ms.sym->src to signal we already
* processed this symbol.
*/
+ zfree(&notes->src->cycles_hist);
zfree(&notes->src);
}
}
@@ -238,6 +240,8 @@ static int __cmd_annotate(struct perf_annotate *ann)
if (nr_samples > 0) {
total_nr_samples += nr_samples;
hists__collapse_resort(hists, NULL);
+ /* Don't sort callchain */
+ perf_evsel__reset_sample_bit(pos, CALLCHAIN);
hists__output_resort(hists, NULL);
if (symbol_conf.event_group &&
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index b5314e452ec7..f67934d46d40 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -60,6 +60,8 @@ static struct bench futex_benchmarks[] = {
{ "wake", "Benchmark for futex wake calls", bench_futex_wake },
{ "wake-parallel", "Benchmark for parallel futex wake calls", bench_futex_wake_parallel },
{ "requeue", "Benchmark for futex requeue calls", bench_futex_requeue },
+ /* pi-futexes */
+ { "lock-pi", "Benchmark for futex lock_pi calls", bench_futex_lock_pi },
{ "all", "Test all futex benchmarks", NULL },
{ NULL, NULL, NULL }
};
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index d47a0cdc71c9..7b8450cd33c2 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -25,8 +25,6 @@
static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
{
char root_dir[PATH_MAX];
- char notes[PATH_MAX];
- u8 build_id[BUILD_ID_SIZE];
char *p;
strlcpy(root_dir, proc_dir, sizeof(root_dir));
@@ -35,15 +33,7 @@ static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
if (!p)
return -1;
*p = '\0';
-
- scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
-
- if (sysfs__read_build_id(notes, build_id, sizeof(build_id)))
- return -1;
-
- build_id__sprintf(build_id, sizeof(build_id), sbuildid);
-
- return 0;
+ return sysfs__sprintf_build_id(root_dir, sbuildid);
}
static int build_id_cache__kcore_dir(char *dir, size_t sz)
@@ -127,7 +117,7 @@ static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir,
static int build_id_cache__add_kcore(const char *filename, bool force)
{
- char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
+ char dir[32], sbuildid[SBUILD_ID_SIZE];
char from_dir[PATH_MAX], to_dir[PATH_MAX];
char *p;
@@ -138,7 +128,7 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
return -1;
*p = '\0';
- if (build_id_cache__kcore_buildid(from_dir, sbuildid))
+ if (build_id_cache__kcore_buildid(from_dir, sbuildid) < 0)
return -1;
scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
@@ -184,7 +174,7 @@ static int build_id_cache__add_kcore(const char *filename, bool force)
static int build_id_cache__add_file(const char *filename)
{
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
u8 build_id[BUILD_ID_SIZE];
int err;
@@ -204,7 +194,7 @@ static int build_id_cache__add_file(const char *filename)
static int build_id_cache__remove_file(const char *filename)
{
u8 build_id[BUILD_ID_SIZE];
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
int err;
@@ -276,7 +266,7 @@ static int build_id_cache__fprintf_missing(struct perf_session *session, FILE *f
static int build_id_cache__update_file(const char *filename)
{
u8 build_id[BUILD_ID_SIZE];
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
int err = 0;
@@ -363,7 +353,7 @@ int cmd_buildid_cache(int argc, const char **argv,
setup_pager();
if (add_name_list_str) {
- list = strlist__new(true, add_name_list_str);
+ list = strlist__new(add_name_list_str, NULL);
if (list) {
strlist__for_each(pos, list)
if (build_id_cache__add_file(pos->s)) {
@@ -381,7 +371,7 @@ int cmd_buildid_cache(int argc, const char **argv,
}
if (remove_name_list_str) {
- list = strlist__new(true, remove_name_list_str);
+ list = strlist__new(remove_name_list_str, NULL);
if (list) {
strlist__for_each(pos, list)
if (build_id_cache__remove_file(pos->s)) {
@@ -399,7 +389,7 @@ int cmd_buildid_cache(int argc, const char **argv,
}
if (purge_name_list_str) {
- list = strlist__new(true, purge_name_list_str);
+ list = strlist__new(purge_name_list_str, NULL);
if (list) {
strlist__for_each(pos, list)
if (build_id_cache__purge_path(pos->s)) {
@@ -420,7 +410,7 @@ int cmd_buildid_cache(int argc, const char **argv,
ret = build_id_cache__fprintf_missing(session, stdout);
if (update_name_list_str) {
- list = strlist__new(true, update_name_list_str);
+ list = strlist__new(update_name_list_str, NULL);
if (list) {
strlist__for_each(pos, list)
if (build_id_cache__update_file(pos->s)) {
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 9fe93c8d4fcf..918b4de29de4 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -19,29 +19,25 @@
static int sysfs__fprintf_build_id(FILE *fp)
{
- u8 kallsyms_build_id[BUILD_ID_SIZE];
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
+ int ret;
- if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
- sizeof(kallsyms_build_id)) != 0)
- return -1;
+ ret = sysfs__sprintf_build_id("/", sbuild_id);
+ if (ret != sizeof(sbuild_id))
+ return ret < 0 ? ret : -EINVAL;
- build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id),
- sbuild_id);
- fprintf(fp, "%s\n", sbuild_id);
- return 0;
+ return fprintf(fp, "%s\n", sbuild_id);
}
static int filename__fprintf_build_id(const char *name, FILE *fp)
{
- u8 build_id[BUILD_ID_SIZE];
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
+ int ret;
- if (filename__read_build_id(name, build_id,
- sizeof(build_id)) != sizeof(build_id))
- return 0;
+ ret = filename__sprintf_build_id(name, sbuild_id);
+ if (ret != sizeof(sbuild_id))
+ return ret < 0 ? ret : -EINVAL;
- build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
return fprintf(fp, "%s\n", sbuild_id);
}
@@ -63,7 +59,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
/*
* See if this is an ELF file first:
*/
- if (filename__fprintf_build_id(input_name, stdout))
+ if (filename__fprintf_build_id(input_name, stdout) > 0)
goto out;
session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index daaa7dca9c3b..0b180a885ba3 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -722,6 +722,9 @@ static void data_process(void)
if (verbose || data__files_cnt > 2)
data__fprintf();
+ /* Don't sort callchain for perf diff */
+ perf_evsel__reset_sample_bit(evsel_base, CALLCHAIN);
+
hists__process(hists_base);
}
}
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 01b06492bd6a..f62c49b35be0 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -561,6 +561,7 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
.lost = perf_event__repipe,
.aux = perf_event__repipe,
.itrace_start = perf_event__repipe,
+ .context_switch = perf_event__repipe,
.read = perf_event__repipe_sample,
.throttle = perf_event__repipe,
.unthrottle = perf_event__repipe,
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 1272559fa22d..b81cec33b4b2 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -297,8 +297,7 @@ static void cleanup_params(void)
clear_perf_probe_event(params.events + i);
line_range__clear(&params.line_range);
free(params.target);
- if (params.filter)
- strfilter__delete(params.filter);
+ strfilter__delete(params.filter);
memset(&params, 0, sizeof(params));
}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 20b56eb987f8..a660022f2c92 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -771,12 +771,14 @@ static void callchain_debug(void)
callchain_param.dump_size);
}
-int record_parse_callchain_opt(const struct option *opt __maybe_unused,
+int record_parse_callchain_opt(const struct option *opt,
const char *arg,
int unset)
{
int ret;
+ struct record_opts *record = (struct record_opts *)opt->value;
+ record->callgraph_set = true;
callchain_param.enabled = !unset;
/* --no-call-graph */
@@ -786,17 +788,20 @@ int record_parse_callchain_opt(const struct option *opt __maybe_unused,
return 0;
}
- ret = parse_callchain_record_opt(arg);
+ ret = parse_callchain_record_opt(arg, &callchain_param);
if (!ret)
callchain_debug();
return ret;
}
-int record_callchain_opt(const struct option *opt __maybe_unused,
+int record_callchain_opt(const struct option *opt,
const char *arg __maybe_unused,
int unset __maybe_unused)
{
+ struct record_opts *record = (struct record_opts *)opt->value;
+
+ record->callgraph_set = true;
callchain_param.enabled = true;
if (callchain_param.record_mode == CALLCHAIN_NONE)
@@ -1003,6 +1008,9 @@ struct option __record_options[] = {
parse_events_option),
OPT_CALLBACK(0, "filter", &record.evlist, "filter",
"event filter", parse_filter),
+ OPT_CALLBACK_NOOPT(0, "exclude-perf", &record.evlist,
+ NULL, "don't record events from perf itself",
+ exclude_perf),
OPT_STRING('p', "pid", &record.opts.target.pid, "pid",
"record events on existing process id"),
OPT_STRING('t', "tid", &record.opts.target.tid, "tid",
@@ -1041,7 +1049,9 @@ struct option __record_options[] = {
OPT_BOOLEAN('s', "stat", &record.opts.inherit_stat,
"per thread counts"),
OPT_BOOLEAN('d', "data", &record.opts.sample_address, "Record the sample addresses"),
- OPT_BOOLEAN('T', "timestamp", &record.opts.sample_time, "Record the sample timestamps"),
+ OPT_BOOLEAN_SET('T', "timestamp", &record.opts.sample_time,
+ &record.opts.sample_time_set,
+ "Record the sample timestamps"),
OPT_BOOLEAN('P', "period", &record.opts.period, "Record the sample period"),
OPT_BOOLEAN('n', "no-samples", &record.opts.no_samples,
"don't sample"),
@@ -1081,6 +1091,8 @@ struct option __record_options[] = {
"opts", "AUX area tracing Snapshot Mode", ""),
OPT_UINTEGER(0, "proc-map-timeout", &record.opts.proc_map_timeout,
"per thread proc mmap processing timeout in ms"),
+ OPT_BOOLEAN(0, "switch-events", &record.opts.record_switch_events,
+ "Record context switch events"),
OPT_END()
};
@@ -1108,6 +1120,11 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
" system-wide mode\n");
usage_with_options(record_usage, record_options);
}
+ if (rec->opts.record_switch_events &&
+ !perf_can_record_switch_events()) {
+ ui__error("kernel does not support recording context switch events (--switch-events option)\n");
+ usage_with_options(record_usage, record_options);
+ }
if (!rec->itr) {
rec->itr = auxtrace_record__init(rec->evlist, &err);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 95a47719aec3..62b285e32aa5 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -53,6 +53,7 @@ struct report {
bool mem_mode;
bool header;
bool header_only;
+ bool nonany_branch_mode;
int max_stack;
struct perf_read_values show_threads_values;
const char *pretty_printing_style;
@@ -102,6 +103,9 @@ static int hist_iter__report_callback(struct hist_entry_iter *iter,
if (!ui__has_annotation())
return 0;
+ hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
+ rep->nonany_branch_mode);
+
if (sort__mode == SORT_MODE__BRANCH) {
bi = he->branch_info;
err = addr_map_symbol__inc_samples(&bi->from, evsel->idx);
@@ -258,6 +262,12 @@ static int report__setup_sample_type(struct report *rep)
else
callchain_param.record_mode = CALLCHAIN_FP;
}
+
+ /* ??? handle more cases than just ANY? */
+ if (!(perf_evlist__combined_branch_type(session->evlist) &
+ PERF_SAMPLE_BRANCH_ANY))
+ rep->nonany_branch_mode = true;
+
return 0;
}
@@ -306,6 +316,11 @@ static size_t hists__fprintf_nr_sample_events(struct hists *hists, struct report
if (evname != NULL)
ret += fprintf(fp, " of event '%s'", evname);
+ if (symbol_conf.show_ref_callgraph &&
+ strstr(evname, "call-graph=no")) {
+ ret += fprintf(fp, ", show reference callgraph");
+ }
+
if (rep->mem_mode) {
ret += fprintf(fp, "\n# Total weight : %" PRIu64, nr_events);
ret += fprintf(fp, "\n# Sort order : %s", sort_order ? : default_mem_sort_order);
@@ -728,6 +743,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
"Instruction Tracing options",
itrace_parse_synth_opts),
+ OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
+ "Show full source file name path for source lines"),
+ OPT_BOOLEAN(0, "show-ref-call-graph", &symbol_conf.show_ref_callgraph,
+ "Show callgraph from reference event"),
OPT_END()
};
struct perf_data_file file = {
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 24809787369f..4430340292c0 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -623,6 +623,7 @@ struct perf_script {
struct perf_session *session;
bool show_task_events;
bool show_mmap_events;
+ bool show_switch_events;
};
static int process_attr(struct perf_tool *tool, union perf_event *event,
@@ -661,7 +662,7 @@ static int process_comm_event(struct perf_tool *tool,
struct thread *thread;
struct perf_script *script = container_of(tool, struct perf_script, tool);
struct perf_session *session = script->session;
- struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
int ret = -1;
thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
@@ -695,7 +696,7 @@ static int process_fork_event(struct perf_tool *tool,
struct thread *thread;
struct perf_script *script = container_of(tool, struct perf_script, tool);
struct perf_session *session = script->session;
- struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
if (perf_event__process_fork(tool, event, sample, machine) < 0)
return -1;
@@ -727,7 +728,7 @@ static int process_exit_event(struct perf_tool *tool,
struct thread *thread;
struct perf_script *script = container_of(tool, struct perf_script, tool);
struct perf_session *session = script->session;
- struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
if (thread == NULL) {
@@ -759,7 +760,7 @@ static int process_mmap_event(struct perf_tool *tool,
struct thread *thread;
struct perf_script *script = container_of(tool, struct perf_script, tool);
struct perf_session *session = script->session;
- struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
if (perf_event__process_mmap(tool, event, sample, machine) < 0)
return -1;
@@ -790,7 +791,7 @@ static int process_mmap2_event(struct perf_tool *tool,
struct thread *thread;
struct perf_script *script = container_of(tool, struct perf_script, tool);
struct perf_session *session = script->session;
- struct perf_evsel *evsel = perf_evlist__first(session->evlist);
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
return -1;
@@ -813,6 +814,32 @@ static int process_mmap2_event(struct perf_tool *tool,
return 0;
}
+static int process_switch_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct thread *thread;
+ struct perf_script *script = container_of(tool, struct perf_script, tool);
+ struct perf_session *session = script->session;
+ struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+
+ if (perf_event__process_switch(tool, event, sample, machine) < 0)
+ return -1;
+
+ thread = machine__findnew_thread(machine, sample->pid,
+ sample->tid);
+ if (thread == NULL) {
+ pr_debug("problem processing SWITCH event, skipping it.\n");
+ return -1;
+ }
+
+ print_sample_start(sample, thread, evsel);
+ perf_event__fprintf(event, stdout);
+ thread__put(thread);
+ return 0;
+}
+
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
@@ -834,6 +861,8 @@ static int __cmd_script(struct perf_script *script)
script->tool.mmap = process_mmap_event;
script->tool.mmap2 = process_mmap2_event;
}
+ if (script->show_switch_events)
+ script->tool.context_switch = process_switch_event;
ret = perf_session__process_events(script->session);
@@ -1532,6 +1561,22 @@ static int have_cmd(int argc, const char **argv)
return 0;
}
+static void script__setup_sample_type(struct perf_script *script)
+{
+ struct perf_session *session = script->session;
+ u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
+
+ if (symbol_conf.use_callchain || symbol_conf.cumulate_callchain) {
+ if ((sample_type & PERF_SAMPLE_REGS_USER) &&
+ (sample_type & PERF_SAMPLE_STACK_USER))
+ callchain_param.record_mode = CALLCHAIN_DWARF;
+ else if (sample_type & PERF_SAMPLE_BRANCH_STACK)
+ callchain_param.record_mode = CALLCHAIN_LBR;
+ else
+ callchain_param.record_mode = CALLCHAIN_FP;
+ }
+}
+
int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
{
bool show_full_info = false;
@@ -1618,10 +1663,19 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
"Show the fork/comm/exit events"),
OPT_BOOLEAN('\0', "show-mmap-events", &script.show_mmap_events,
"Show the mmap events"),
+ OPT_BOOLEAN('\0', "show-switch-events", &script.show_switch_events,
+ "Show context switch events (if recorded)"),
OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
OPT_CALLBACK_OPTARG(0, "itrace", &itrace_synth_opts, NULL, "opts",
"Instruction Tracing options",
itrace_parse_synth_opts),
+ OPT_BOOLEAN(0, "full-source-path", &srcline_full_filename,
+ "Show full source file name path for source lines"),
+ OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
+ "Enable symbol demangling"),
+ OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
+ "Enable kernel symbol demangling"),
+
OPT_END()
};
const char * const script_subcommands[] = { "record", "report", NULL };
@@ -1816,6 +1870,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
goto out_delete;
script.session = session;
+ script__setup_sample_type(&script);
session->itrace_synth_opts = &itrace_synth_opts;
@@ -1830,6 +1885,14 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
else
symbol_conf.use_callchain = false;
+ if (session->tevent.pevent &&
+ pevent_set_function_resolver(session->tevent.pevent,
+ machine__resolve_kernel_addr,
+ &session->machines.host) < 0) {
+ pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
+ return -1;
+ }
+
if (generate_script_lang) {
struct stat perf_stat;
int input;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index d99d850e1444..d46dbb1bc65d 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -58,6 +58,7 @@
#include "util/cpumap.h"
#include "util/thread.h"
#include "util/thread_map.h"
+#include "util/counts.h"
#include <stdlib.h>
#include <sys/prctl.h>
@@ -101,8 +102,6 @@ static struct target target = {
static int run_count = 1;
static bool no_inherit = false;
-static bool scale = true;
-static enum aggr_mode aggr_mode = AGGR_GLOBAL;
static volatile pid_t child_pid = -1;
static bool null_run = false;
static int detailed_run = 0;
@@ -112,11 +111,9 @@ static int big_num_opt = -1;
static const char *csv_sep = NULL;
static bool csv_output = false;
static bool group = false;
-static FILE *output = NULL;
static const char *pre_cmd = NULL;
static const char *post_cmd = NULL;
static bool sync_run = false;
-static unsigned int interval = 0;
static unsigned int initial_delay = 0;
static unsigned int unit_width = 4; /* strlen("unit") */
static bool forever = false;
@@ -126,6 +123,11 @@ static int (*aggr_get_id)(struct cpu_map *m, int cpu);
static volatile int done = 0;
+static struct perf_stat_config stat_config = {
+ .aggr_mode = AGGR_GLOBAL,
+ .scale = true,
+};
+
static inline void diff_timespec(struct timespec *r, struct timespec *a,
struct timespec *b)
{
@@ -148,7 +150,7 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
{
struct perf_event_attr *attr = &evsel->attr;
- if (scale)
+ if (stat_config.scale)
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
@@ -178,142 +180,6 @@ static inline int nsec_counter(struct perf_evsel *evsel)
return 0;
}
-static void zero_per_pkg(struct perf_evsel *counter)
-{
- if (counter->per_pkg_mask)
- memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
-}
-
-static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
-{
- unsigned long *mask = counter->per_pkg_mask;
- struct cpu_map *cpus = perf_evsel__cpus(counter);
- int s;
-
- *skip = false;
-
- if (!counter->per_pkg)
- return 0;
-
- if (cpu_map__empty(cpus))
- return 0;
-
- if (!mask) {
- mask = zalloc(MAX_NR_CPUS);
- if (!mask)
- return -ENOMEM;
-
- counter->per_pkg_mask = mask;
- }
-
- s = cpu_map__get_socket(cpus, cpu);
- if (s < 0)
- return -1;
-
- *skip = test_and_set_bit(s, mask) == 1;
- return 0;
-}
-
-static int
-process_counter_values(struct perf_evsel *evsel, int cpu, int thread,
- struct perf_counts_values *count)
-{
- struct perf_counts_values *aggr = &evsel->counts->aggr;
- static struct perf_counts_values zero;
- bool skip = false;
-
- if (check_per_pkg(evsel, cpu, &skip)) {
- pr_err("failed to read per-pkg counter\n");
- return -1;
- }
-
- if (skip)
- count = &zero;
-
- switch (aggr_mode) {
- case AGGR_THREAD:
- case AGGR_CORE:
- case AGGR_SOCKET:
- case AGGR_NONE:
- if (!evsel->snapshot)
- perf_evsel__compute_deltas(evsel, cpu, thread, count);
- perf_counts_values__scale(count, scale, NULL);
- if (aggr_mode == AGGR_NONE)
- perf_stat__update_shadow_stats(evsel, count->values, cpu);
- break;
- case AGGR_GLOBAL:
- aggr->val += count->val;
- if (scale) {
- aggr->ena += count->ena;
- aggr->run += count->run;
- }
- default:
- break;
- }
-
- return 0;
-}
-
-static int process_counter_maps(struct perf_evsel *counter)
-{
- int nthreads = thread_map__nr(counter->threads);
- int ncpus = perf_evsel__nr_cpus(counter);
- int cpu, thread;
-
- if (counter->system_wide)
- nthreads = 1;
-
- for (thread = 0; thread < nthreads; thread++) {
- for (cpu = 0; cpu < ncpus; cpu++) {
- if (process_counter_values(counter, cpu, thread,
- perf_counts(counter->counts, cpu, thread)))
- return -1;
- }
- }
-
- return 0;
-}
-
-static int process_counter(struct perf_evsel *counter)
-{
- struct perf_counts_values *aggr = &counter->counts->aggr;
- struct perf_stat *ps = counter->priv;
- u64 *count = counter->counts->aggr.values;
- int i, ret;
-
- aggr->val = aggr->ena = aggr->run = 0;
- init_stats(ps->res_stats);
-
- if (counter->per_pkg)
- zero_per_pkg(counter);
-
- ret = process_counter_maps(counter);
- if (ret)
- return ret;
-
- if (aggr_mode != AGGR_GLOBAL)
- return 0;
-
- if (!counter->snapshot)
- perf_evsel__compute_deltas(counter, -1, -1, aggr);
- perf_counts_values__scale(aggr, scale, &counter->counts->scaled);
-
- for (i = 0; i < 3; i++)
- update_stats(&ps->res_stats[i], count[i]);
-
- if (verbose) {
- fprintf(output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
- perf_evsel__name(counter), count[0], count[1], count[2]);
- }
-
- /*
- * Save the full runtime - to allow normalization during printout:
- */
- perf_stat__update_shadow_stats(counter, count, 0);
-
- return 0;
-}
-
/*
* Read out the results of a single counter:
* do not aggregate counts across CPUs in system-wide mode
@@ -351,7 +217,7 @@ static void read_counters(bool close_counters)
if (read_counter(counter))
pr_warning("failed to read counter %s\n", counter->name);
- if (process_counter(counter))
+ if (perf_stat_process_counter(&stat_config, counter))
pr_warning("failed to process counter %s\n", counter->name);
if (close_counters) {
@@ -402,6 +268,7 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
static int __run_perf_stat(int argc, const char **argv)
{
+ int interval = stat_config.interval;
char msg[512];
unsigned long long t0, t1;
struct perf_evsel *counter;
@@ -545,13 +412,13 @@ static int run_perf_stat(int argc, const char **argv)
static void print_running(u64 run, u64 ena)
{
if (csv_output) {
- fprintf(output, "%s%" PRIu64 "%s%.2f",
+ fprintf(stat_config.output, "%s%" PRIu64 "%s%.2f",
csv_sep,
run,
csv_sep,
ena ? 100.0 * run / ena : 100.0);
} else if (run != ena) {
- fprintf(output, " (%.2f%%)", 100.0 * run / ena);
+ fprintf(stat_config.output, " (%.2f%%)", 100.0 * run / ena);
}
}
@@ -560,9 +427,9 @@ static void print_noise_pct(double total, double avg)
double pct = rel_stddev_stats(total, avg);
if (csv_output)
- fprintf(output, "%s%.2f%%", csv_sep, pct);
+ fprintf(stat_config.output, "%s%.2f%%", csv_sep, pct);
else if (pct)
- fprintf(output, " ( +-%6.2f%% )", pct);
+ fprintf(stat_config.output, " ( +-%6.2f%% )", pct);
}
static void print_noise(struct perf_evsel *evsel, double avg)
@@ -578,9 +445,9 @@ static void print_noise(struct perf_evsel *evsel, double avg)
static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
- fprintf(output, "S%d-C%*d%s%*d%s",
+ fprintf(stat_config.output, "S%d-C%*d%s%*d%s",
cpu_map__id_to_socket(id),
csv_output ? 0 : -8,
cpu_map__id_to_cpu(id),
@@ -590,7 +457,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
csv_sep);
break;
case AGGR_SOCKET:
- fprintf(output, "S%*d%s%*d%s",
+ fprintf(stat_config.output, "S%*d%s%*d%s",
csv_output ? 0 : -5,
id,
csv_sep,
@@ -599,12 +466,12 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
csv_sep);
break;
case AGGR_NONE:
- fprintf(output, "CPU%*d%s",
+ fprintf(stat_config.output, "CPU%*d%s",
csv_output ? 0 : -4,
perf_evsel__cpus(evsel)->map[id], csv_sep);
break;
case AGGR_THREAD:
- fprintf(output, "%*s-%*d%s",
+ fprintf(stat_config.output, "%*s-%*d%s",
csv_output ? 0 : 16,
thread_map__comm(evsel->threads, id),
csv_output ? 0 : -8,
@@ -619,6 +486,7 @@ static void aggr_printout(struct perf_evsel *evsel, int id, int nr)
static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
+ FILE *output = stat_config.output;
double msecs = avg / 1e6;
const char *fmt_v, *fmt_n;
char name[25];
@@ -643,7 +511,7 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
- if (csv_output || interval)
+ if (csv_output || stat_config.interval)
return;
if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
@@ -655,6 +523,7 @@ static void nsec_printout(int id, int nr, struct perf_evsel *evsel, double avg)
static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
{
+ FILE *output = stat_config.output;
double sc = evsel->scale;
const char *fmt;
int cpu = cpu_map__id_to_cpu(id);
@@ -670,7 +539,7 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
aggr_printout(evsel, id, nr);
- if (aggr_mode == AGGR_GLOBAL)
+ if (stat_config.aggr_mode == AGGR_GLOBAL)
cpu = 0;
fprintf(output, fmt, avg, csv_sep);
@@ -685,16 +554,18 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
if (evsel->cgrp)
fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
- if (csv_output || interval)
+ if (csv_output || stat_config.interval)
return;
- perf_stat__print_shadow_stats(output, evsel, avg, cpu, aggr_mode);
+ perf_stat__print_shadow_stats(output, evsel, avg, cpu,
+ stat_config.aggr_mode);
}
static void print_aggr(char *prefix)
{
+ FILE *output = stat_config.output;
struct perf_evsel *counter;
- int cpu, cpu2, s, s2, id, nr;
+ int cpu, s, s2, id, nr;
double uval;
u64 ena, run, val;
@@ -707,8 +578,7 @@ static void print_aggr(char *prefix)
val = ena = run = 0;
nr = 0;
for (cpu = 0; cpu < perf_evsel__nr_cpus(counter); cpu++) {
- cpu2 = perf_evsel__cpus(counter)->map[cpu];
- s2 = aggr_get_id(evsel_list->cpus, cpu2);
+ s2 = aggr_get_id(perf_evsel__cpus(counter), cpu);
if (s2 != id)
continue;
val += perf_counts(counter->counts, cpu, 0)->val;
@@ -761,6 +631,7 @@ static void print_aggr(char *prefix)
static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
int nthreads = thread_map__nr(counter->threads);
int ncpus = cpu_map__nr(counter->cpus);
int cpu, thread;
@@ -799,6 +670,7 @@ static void print_aggr_thread(struct perf_evsel *counter, char *prefix)
*/
static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
struct perf_stat *ps = counter->priv;
double avg = avg_stats(&ps->res_stats[0]);
int scaled = counter->counts->scaled;
@@ -850,6 +722,7 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix)
*/
static void print_counter(struct perf_evsel *counter, char *prefix)
{
+ FILE *output = stat_config.output;
u64 ena, run, val;
double uval;
int cpu;
@@ -904,12 +777,13 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
static void print_interval(char *prefix, struct timespec *ts)
{
+ FILE *output = stat_config.output;
static int num_print_interval;
sprintf(prefix, "%6lu.%09lu%s", ts->tv_sec, ts->tv_nsec, csv_sep);
if (num_print_interval == 0 && !csv_output) {
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
fprintf(output, "# time socket cpus counts %*s events\n", unit_width, "unit");
break;
@@ -934,6 +808,7 @@ static void print_interval(char *prefix, struct timespec *ts)
static void print_header(int argc, const char **argv)
{
+ FILE *output = stat_config.output;
int i;
fflush(stdout);
@@ -963,6 +838,8 @@ static void print_header(int argc, const char **argv)
static void print_footer(void)
{
+ FILE *output = stat_config.output;
+
if (!null_run)
fprintf(output, "\n");
fprintf(output, " %17.9f seconds time elapsed",
@@ -977,6 +854,7 @@ static void print_footer(void)
static void print_counters(struct timespec *ts, int argc, const char **argv)
{
+ int interval = stat_config.interval;
struct perf_evsel *counter;
char buf[64], *prefix = NULL;
@@ -985,7 +863,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
else
print_header(argc, argv);
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_CORE:
case AGGR_SOCKET:
print_aggr(prefix);
@@ -1009,14 +887,14 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
if (!interval && !csv_output)
print_footer();
- fflush(output);
+ fflush(stat_config.output);
}
static volatile int signr = -1;
static void skip_signal(int signo)
{
- if ((child_pid == -1) || interval)
+ if ((child_pid == -1) || stat_config.interval)
done = 1;
signr = signo;
@@ -1064,7 +942,7 @@ static int stat__set_big_num(const struct option *opt __maybe_unused,
static int perf_stat_init_aggr_mode(void)
{
- switch (aggr_mode) {
+ switch (stat_config.aggr_mode) {
case AGGR_SOCKET:
if (cpu_map__build_socket_map(evsel_list->cpus, &aggr_map)) {
perror("cannot build socket map");
@@ -1270,7 +1148,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
"system-wide collection from all CPUs"),
OPT_BOOLEAN('g', "group", &group,
"put the counters into a counter group"),
- OPT_BOOLEAN('c', "scale", &scale, "scale/normalize counters"),
+ OPT_BOOLEAN('c', "scale", &stat_config.scale, "scale/normalize counters"),
OPT_INCR('v', "verbose", &verbose,
"be more verbose (show counter open errors, etc)"),
OPT_INTEGER('r', "repeat", &run_count,
@@ -1286,7 +1164,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
stat__set_big_num),
OPT_STRING('C', "cpu", &target.cpu_list, "cpu",
"list of cpus to monitor in system-wide"),
- OPT_SET_UINT('A', "no-aggr", &aggr_mode,
+ OPT_SET_UINT('A', "no-aggr", &stat_config.aggr_mode,
"disable CPU count aggregation", AGGR_NONE),
OPT_STRING('x', "field-separator", &csv_sep, "separator",
"print counts with custom separator"),
@@ -1300,13 +1178,13 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
"command to run prior to the measured command"),
OPT_STRING(0, "post", &post_cmd, "command",
"command to run after to the measured command"),
- OPT_UINTEGER('I', "interval-print", &interval,
+ OPT_UINTEGER('I', "interval-print", &stat_config.interval,
"print counts at regular interval in ms (>= 100)"),
- OPT_SET_UINT(0, "per-socket", &aggr_mode,
+ OPT_SET_UINT(0, "per-socket", &stat_config.aggr_mode,
"aggregate counts per processor socket", AGGR_SOCKET),
- OPT_SET_UINT(0, "per-core", &aggr_mode,
+ OPT_SET_UINT(0, "per-core", &stat_config.aggr_mode,
"aggregate counts per physical processor core", AGGR_CORE),
- OPT_SET_UINT(0, "per-thread", &aggr_mode,
+ OPT_SET_UINT(0, "per-thread", &stat_config.aggr_mode,
"aggregate counts per thread", AGGR_THREAD),
OPT_UINTEGER('D', "delay", &initial_delay,
"ms to wait before starting measurement after program start"),
@@ -1318,6 +1196,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
};
int status = -EINVAL, run_idx;
const char *mode;
+ FILE *output = stderr;
+ unsigned int interval;
setlocale(LC_ALL, "");
@@ -1328,7 +1208,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
argc = parse_options(argc, argv, options, stat_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
- output = stderr;
+ interval = stat_config.interval;
+
if (output_name && strcmp(output_name, "-"))
output = NULL;
@@ -1365,6 +1246,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
}
}
+ stat_config.output = output;
+
if (csv_sep) {
csv_output = true;
if (!strcmp(csv_sep, "\\t"))
@@ -1399,7 +1282,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
run_count = 1;
}
- if ((aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
+ if ((stat_config.aggr_mode == AGGR_THREAD) && !target__has_task(&target)) {
fprintf(stderr, "The --per-thread option is only available "
"when monitoring via -p -t options.\n");
parse_options_usage(NULL, options, "p", 1);
@@ -1411,7 +1294,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* no_aggr, cgroup are for system-wide only
* --per-thread is aggregated per thread, we dont mix it with cpu mode
*/
- if (((aggr_mode != AGGR_GLOBAL && aggr_mode != AGGR_THREAD) || nr_cgroups) &&
+ if (((stat_config.aggr_mode != AGGR_GLOBAL &&
+ stat_config.aggr_mode != AGGR_THREAD) || nr_cgroups) &&
!target__has_cpu(&target)) {
fprintf(stderr, "both cgroup and no-aggregation "
"modes only available in system-wide mode\n");
@@ -1444,7 +1328,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
* Initialize thread_map with comm names,
* so we could print it out on output.
*/
- if (aggr_mode == AGGR_THREAD)
+ if (stat_config.aggr_mode == AGGR_THREAD)
thread_map__read_comms(evsel_list->threads);
if (interval && interval < 100) {
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 6135cc07213c..8c465c83aabf 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -40,6 +40,7 @@
#include "util/xyarray.h"
#include "util/sort.h"
#include "util/intlist.h"
+#include "util/parse-branch-options.h"
#include "arch/common.h"
#include "util/debug.h"
@@ -695,6 +696,8 @@ static int hist_iter__top_callback(struct hist_entry_iter *iter,
perf_top__record_precise_ip(top, he, evsel->idx, ip);
}
+ hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
+ !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY));
return 0;
}
@@ -1171,6 +1174,12 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
"don't try to adjust column width, use these fixed values"),
OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout,
"per thread proc mmap processing timeout in ms"),
+ OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack,
+ "branch any", "sample any taken branches",
+ parse_branch_stack),
+ OPT_CALLBACK('j', "branch-filter", &opts->branch_stack,
+ "branch filter mask", "branch stack filter modes",
+ parse_branch_stack),
OPT_END()
};
const char * const top_usage[] = {
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 39ad4d0ca884..4e3abba03062 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1,8 +1,27 @@
+/*
+ * builtin-trace.c
+ *
+ * Builtin 'trace' command:
+ *
+ * Display a continuously updated trace of any workload, CPU, specific PID,
+ * system wide, etc. Default format is loosely strace like, but any other
+ * event may be specified using --event.
+ *
+ * Copyright (C) 2012, 2013, 2014, 2015 Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Initially based on the 'trace' prototype by Thomas Gleixner:
+ *
+ * http://lwn.net/Articles/415728/ ("Announcing a new utility: 'trace'")
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
#include <traceevent/event-parse.h>
#include "builtin.h"
#include "util/color.h"
#include "util/debug.h"
#include "util/evlist.h"
+#include "util/exec_cmd.h"
#include "util/machine.h"
#include "util/session.h"
#include "util/thread.h"
@@ -26,6 +45,7 @@
#ifndef MADV_HWPOISON
# define MADV_HWPOISON 100
+
#endif
#ifndef MADV_MERGEABLE
@@ -247,42 +267,6 @@ out_delete:
({ struct syscall_tp *fields = evsel->priv; \
fields->name.pointer(&fields->name, sample); })
-static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
- void *sys_enter_handler,
- void *sys_exit_handler)
-{
- int ret = -1;
- struct perf_evsel *sys_enter, *sys_exit;
-
- sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
- if (sys_enter == NULL)
- goto out;
-
- if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
- goto out_delete_sys_enter;
-
- sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
- if (sys_exit == NULL)
- goto out_delete_sys_enter;
-
- if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
- goto out_delete_sys_exit;
-
- perf_evlist__add(evlist, sys_enter);
- perf_evlist__add(evlist, sys_exit);
-
- ret = 0;
-out:
- return ret;
-
-out_delete_sys_exit:
- perf_evsel__delete_priv(sys_exit);
-out_delete_sys_enter:
- perf_evsel__delete_priv(sys_enter);
- goto out;
-}
-
-
struct syscall_arg {
unsigned long val;
struct thread *thread;
@@ -604,6 +588,15 @@ static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
static DEFINE_STRARRAY(itimers);
+static const char *keyctl_options[] = {
+ "GET_KEYRING_ID", "JOIN_SESSION_KEYRING", "UPDATE", "REVOKE", "CHOWN",
+ "SETPERM", "DESCRIBE", "CLEAR", "LINK", "UNLINK", "SEARCH", "READ",
+ "INSTANTIATE", "NEGATE", "SET_REQKEY_KEYRING", "SET_TIMEOUT",
+ "ASSUME_AUTHORITY", "GET_SECURITY", "SESSION_TO_PARENT", "REJECT",
+ "INSTANTIATE_IOV", "INVALIDATE", "GET_PERSISTENT",
+};
+static DEFINE_STRARRAY(keyctl_options);
+
static const char *whences[] = { "SET", "CUR", "END",
#ifdef SEEK_DATA
"DATA",
@@ -634,7 +627,8 @@ static DEFINE_STRARRAY(sighow);
static const char *clockid[] = {
"REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
- "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE",
+ "MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE", "BOOTTIME",
+ "REALTIME_ALARM", "BOOTTIME_ALARM", "SGI_CYCLE", "TAI"
};
static DEFINE_STRARRAY(clockid);
@@ -779,6 +773,11 @@ static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
+static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
+ struct syscall_arg *arg);
+
+#define SCA_FILENAME syscall_arg__scnprintf_filename
+
static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
struct syscall_arg *arg)
{
@@ -1006,14 +1005,23 @@ static struct syscall_fmt {
bool hexret;
} syscall_fmts[] = {
{ .name = "access", .errmsg = true,
- .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, },
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */
+ [1] = SCA_ACCMODE, /* mode */ }, },
{ .name = "arch_prctl", .errmsg = true, .alias = "prctl", },
{ .name = "brk", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
+ { .name = "chdir", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
+ { .name = "chmod", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
+ { .name = "chroot", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
{ .name = "clock_gettime", .errmsg = true, STRARRAY(0, clk_id, clockid), },
{ .name = "close", .errmsg = true,
.arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, },
{ .name = "connect", .errmsg = true, },
+ { .name = "creat", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "dup", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "dup2", .errmsg = true,
@@ -1024,7 +1032,8 @@ static struct syscall_fmt {
{ .name = "eventfd2", .errmsg = true,
.arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
{ .name = "faccessat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "fadvise64", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "fallocate", .errmsg = true,
@@ -1034,11 +1043,13 @@ static struct syscall_fmt {
{ .name = "fchmod", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "fchmodat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "fchown", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "fchownat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "fcntl", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */
[1] = SCA_STRARRAY, /* cmd */ },
@@ -1053,7 +1064,8 @@ static struct syscall_fmt {
{ .name = "fstat", .errmsg = true, .alias = "newfstat",
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "fstatat", .errmsg = true, .alias = "newfstatat",
- .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "fstatfs", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "fsync", .errmsg = true,
@@ -1063,13 +1075,18 @@ static struct syscall_fmt {
{ .name = "futex", .errmsg = true,
.arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
{ .name = "futimesat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "getdents", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "getdents64", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "getitimer", .errmsg = true, STRARRAY(0, which, itimers), },
{ .name = "getrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
+ { .name = "getxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "inotify_add_watch", .errmsg = true,
+ .arg_scnprintf = { [1] = SCA_FILENAME, /* pathname */ }, },
{ .name = "ioctl", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */
#if defined(__i386__) || defined(__x86_64__)
@@ -1082,22 +1099,44 @@ static struct syscall_fmt {
#else
[2] = SCA_HEX, /* arg */ }, },
#endif
+ { .name = "keyctl", .errmsg = true, STRARRAY(0, option, keyctl_options), },
{ .name = "kill", .errmsg = true,
.arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
+ { .name = "lchown", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
+ { .name = "lgetxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "linkat", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ { .name = "listxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "llistxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "lremovexattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "lseek", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */
[2] = SCA_STRARRAY, /* whence */ },
.arg_parm = { [2] = &strarray__whences, /* whence */ }, },
- { .name = "lstat", .errmsg = true, .alias = "newlstat", },
+ { .name = "lsetxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "lstat", .errmsg = true, .alias = "newlstat",
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
+ { .name = "lsxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "madvise", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* start */
[2] = SCA_MADV_BHV, /* behavior */ }, },
+ { .name = "mkdir", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "mkdirat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
+ [1] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "mknod", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
{ .name = "mknodat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* fd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "mlock", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
{ .name = "mlockall", .errmsg = true,
@@ -1110,6 +1149,8 @@ static struct syscall_fmt {
{ .name = "mprotect", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* start */
[2] = SCA_MMAP_PROT, /* prot */ }, },
+ { .name = "mq_unlink", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* u_name */ }, },
{ .name = "mremap", .hexret = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */
[3] = SCA_MREMAP_FLAGS, /* flags */
@@ -1121,14 +1162,17 @@ static struct syscall_fmt {
{ .name = "name_to_handle_at", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
{ .name = "newfstatat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* filename */ }, },
{ .name = "open", .errmsg = true,
- .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */
+ [1] = SCA_OPEN_FLAGS, /* flags */ }, },
{ .name = "open_by_handle_at", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
[2] = SCA_OPEN_FLAGS, /* flags */ }, },
{ .name = "openat", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* filename */
[2] = SCA_OPEN_FLAGS, /* flags */ }, },
{ .name = "perf_event_open", .errmsg = true,
.arg_scnprintf = { [1] = SCA_INT, /* pid */
@@ -1150,18 +1194,28 @@ static struct syscall_fmt {
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "read", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
+ { .name = "readlink", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* path */ }, },
{ .name = "readlinkat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* pathname */ }, },
{ .name = "readv", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "recvfrom", .errmsg = true,
- .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [3] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "recvmmsg", .errmsg = true,
- .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [3] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "recvmsg", .errmsg = true,
- .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [2] = SCA_MSG_FLAGS, /* flags */ }, },
+ { .name = "removexattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "renameat", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ { .name = "rmdir", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "rt_sigaction", .errmsg = true,
.arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
{ .name = "rt_sigprocmask", .errmsg = true, STRARRAY(0, how, sighow), },
@@ -1171,13 +1225,18 @@ static struct syscall_fmt {
.arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
{ .name = "select", .errmsg = true, .timeout = true, },
{ .name = "sendmmsg", .errmsg = true,
- .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [3] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "sendmsg", .errmsg = true,
- .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [2] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "sendto", .errmsg = true,
- .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */
+ [3] = SCA_MSG_FLAGS, /* flags */ }, },
{ .name = "setitimer", .errmsg = true, STRARRAY(0, which, itimers), },
{ .name = "setrlimit", .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
+ { .name = "setxattr", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
{ .name = "shutdown", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "socket", .errmsg = true,
@@ -1188,18 +1247,35 @@ static struct syscall_fmt {
.arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
[1] = SCA_SK_TYPE, /* type */ },
.arg_parm = { [0] = &strarray__socket_families, /* family */ }, },
- { .name = "stat", .errmsg = true, .alias = "newstat", },
+ { .name = "stat", .errmsg = true, .alias = "newstat",
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "statfs", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "swapoff", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, },
+ { .name = "swapon", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* specialfile */ }, },
{ .name = "symlinkat", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
{ .name = "tgkill", .errmsg = true,
.arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
{ .name = "tkill", .errmsg = true,
.arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
+ { .name = "truncate", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* path */ }, },
{ .name = "uname", .errmsg = true, .alias = "newuname", },
{ .name = "unlinkat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+ [1] = SCA_FILENAME, /* pathname */ }, },
+ { .name = "utime", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
{ .name = "utimensat", .errmsg = true,
- .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, },
+ .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */
+ [1] = SCA_FILENAME, /* filename */ }, },
+ { .name = "utimes", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FILENAME, /* filename */ }, },
+ { .name = "vmsplice", .errmsg = true,
+ .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "write", .errmsg = true,
.arg_scnprintf = { [0] = SCA_FD, /* fd */ }, },
{ .name = "writev", .errmsg = true,
@@ -1223,7 +1299,6 @@ struct syscall {
int nr_args;
struct format_field *args;
const char *name;
- bool filtered;
bool is_exit;
struct syscall_fmt *fmt;
size_t (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
@@ -1244,6 +1319,11 @@ static size_t fprintf_duration(unsigned long t, FILE *fp)
return printed + fprintf(fp, "): ");
}
+/**
+ * filename.ptr: The filename char pointer that will be vfs_getname'd
+ * filename.entry_str_pos: Where to insert the string translated from
+ * filename.ptr by the vfs_getname tracepoint/kprobe.
+ */
struct thread_trace {
u64 entry_time;
u64 exit_time;
@@ -1252,6 +1332,13 @@ struct thread_trace {
unsigned long pfmaj, pfmin;
char *entry_str;
double runtime_ms;
+ struct {
+ unsigned long ptr;
+ short int entry_str_pos;
+ bool pending_open;
+ unsigned int namelen;
+ char *name;
+ } filename;
struct {
int max;
char **table;
@@ -1298,6 +1385,8 @@ fail:
#define TRACE_PFMAJ (1 << 0)
#define TRACE_PFMIN (1 << 1)
+static const size_t trace__entry_str_size = 2048;
+
struct trace {
struct perf_tool tool;
struct {
@@ -1307,6 +1396,10 @@ struct trace {
struct {
int max;
struct syscall *table;
+ struct {
+ struct perf_evsel *sys_enter,
+ *sys_exit;
+ } events;
} syscalls;
struct record_opts opts;
struct perf_evlist *evlist;
@@ -1316,7 +1409,10 @@ struct trace {
FILE *output;
unsigned long nr_events;
struct strlist *ev_qualifier;
- const char *last_vfs_getname;
+ struct {
+ size_t nr;
+ int *entries;
+ } ev_qualifier_ids;
struct intlist *tid_list;
struct intlist *pid_list;
struct {
@@ -1340,6 +1436,7 @@ struct trace {
bool show_tool_stats;
bool trace_syscalls;
bool force;
+ bool vfs_getname;
int trace_pgfaults;
};
@@ -1443,6 +1540,27 @@ static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
return printed;
}
+static void thread__set_filename_pos(struct thread *thread, const char *bf,
+ unsigned long ptr)
+{
+ struct thread_trace *ttrace = thread__priv(thread);
+
+ ttrace->filename.ptr = ptr;
+ ttrace->filename.entry_str_pos = bf - ttrace->entry_str;
+}
+
+static size_t syscall_arg__scnprintf_filename(char *bf, size_t size,
+ struct syscall_arg *arg)
+{
+ unsigned long ptr = arg->val;
+
+ if (!arg->trace->vfs_getname)
+ return scnprintf(bf, size, "%#x", ptr);
+
+ thread__set_filename_pos(arg->thread, bf, ptr);
+ return 0;
+}
+
static bool trace__filter_duration(struct trace *trace, double t)
{
return t < (trace->duration_filter * NSEC_PER_MSEC);
@@ -1517,6 +1635,9 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
if (trace->host == NULL)
return -ENOMEM;
+ if (trace_event__register_resolver(trace->host, machine__resolve_kernel_addr) < 0)
+ return -errno;
+
err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
evlist->threads, trace__tool_process, false,
trace->opts.proc_map_timeout);
@@ -1578,19 +1699,6 @@ static int trace__read_syscall_info(struct trace *trace, int id)
sc = trace->syscalls.table + id;
sc->name = name;
- if (trace->ev_qualifier) {
- bool in = strlist__find(trace->ev_qualifier, name) != NULL;
-
- if (!(in ^ trace->not_ev_qualifier)) {
- sc->filtered = true;
- /*
- * No need to do read tracepoint information since this will be
- * filtered out.
- */
- return 0;
- }
- }
-
sc->fmt = syscall_fmt__find(sc->name);
snprintf(tp_name, sizeof(tp_name), "sys_enter_%s", sc->name);
@@ -1619,13 +1727,27 @@ static int trace__read_syscall_info(struct trace *trace, int id)
static int trace__validate_ev_qualifier(struct trace *trace)
{
- int err = 0;
+ int err = 0, i;
struct str_node *pos;
+ trace->ev_qualifier_ids.nr = strlist__nr_entries(trace->ev_qualifier);
+ trace->ev_qualifier_ids.entries = malloc(trace->ev_qualifier_ids.nr *
+ sizeof(trace->ev_qualifier_ids.entries[0]));
+
+ if (trace->ev_qualifier_ids.entries == NULL) {
+ fputs("Error:\tNot enough memory for allocating events qualifier ids\n",
+ trace->output);
+ err = -EINVAL;
+ goto out;
+ }
+
+ i = 0;
+
strlist__for_each(pos, trace->ev_qualifier) {
const char *sc = pos->s;
+ int id = audit_name_to_syscall(sc, trace->audit.machine);
- if (audit_name_to_syscall(sc, trace->audit.machine) < 0) {
+ if (id < 0) {
if (err == 0) {
fputs("Error:\tInvalid syscall ", trace->output);
err = -EINVAL;
@@ -1635,13 +1757,17 @@ static int trace__validate_ev_qualifier(struct trace *trace)
fputs(sc, trace->output);
}
+
+ trace->ev_qualifier_ids.entries[i++] = id;
}
if (err < 0) {
fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
"\nHint:\tand: 'man syscalls'\n", trace->output);
+ zfree(&trace->ev_qualifier_ids.entries);
+ trace->ev_qualifier_ids.nr = 0;
}
-
+out:
return err;
}
@@ -1833,9 +1959,6 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
if (sc == NULL)
return -1;
- if (sc->filtered)
- return 0;
-
thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
ttrace = thread__trace(thread, trace->output);
if (ttrace == NULL)
@@ -1844,7 +1967,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
args = perf_evsel__sc_tp_ptr(evsel, args, sample);
if (ttrace->entry_str == NULL) {
- ttrace->entry_str = malloc(1024);
+ ttrace->entry_str = malloc(trace__entry_str_size);
if (!ttrace->entry_str)
goto out_put;
}
@@ -1854,9 +1977,9 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
ttrace->entry_time = sample->time;
msg = ttrace->entry_str;
- printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
+ printed += scnprintf(msg + printed, trace__entry_str_size - printed, "%s(", sc->name);
- printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
+ printed += syscall__scnprintf_args(sc, msg + printed, trace__entry_str_size - printed,
args, trace, thread);
if (sc->is_exit) {
@@ -1864,8 +1987,11 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
fprintf(trace->output, "%-70s\n", ttrace->entry_str);
}
- } else
+ } else {
ttrace->entry_pending = true;
+ /* See trace__vfs_getname & trace__sys_exit */
+ ttrace->filename.pending_open = false;
+ }
if (trace->current != thread) {
thread__put(trace->current);
@@ -1891,9 +2017,6 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
if (sc == NULL)
return -1;
- if (sc->filtered)
- return 0;
-
thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
ttrace = thread__trace(thread, trace->output);
if (ttrace == NULL)
@@ -1904,9 +2027,9 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
- if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
- trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
- trace->last_vfs_getname = NULL;
+ if (id == trace->audit.open_id && ret >= 0 && ttrace->filename.pending_open) {
+ trace__set_fd_pathname(thread, ret, ttrace->filename.name);
+ ttrace->filename.pending_open = false;
++trace->stats.vfs_getname;
}
@@ -1961,7 +2084,56 @@ static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
union perf_event *event __maybe_unused,
struct perf_sample *sample)
{
- trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
+ struct thread *thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
+ struct thread_trace *ttrace;
+ size_t filename_len, entry_str_len, to_move;
+ ssize_t remaining_space;
+ char *pos;
+ const char *filename = perf_evsel__rawptr(evsel, sample, "pathname");
+
+ if (!thread)
+ goto out;
+
+ ttrace = thread__priv(thread);
+ if (!ttrace)
+ goto out;
+
+ filename_len = strlen(filename);
+
+ if (ttrace->filename.namelen < filename_len) {
+ char *f = realloc(ttrace->filename.name, filename_len + 1);
+
+ if (f == NULL)
+ goto out;
+
+ ttrace->filename.namelen = filename_len;
+ ttrace->filename.name = f;
+ }
+
+ strcpy(ttrace->filename.name, filename);
+ ttrace->filename.pending_open = true;
+
+ if (!ttrace->filename.ptr)
+ goto out;
+
+ entry_str_len = strlen(ttrace->entry_str);
+ remaining_space = trace__entry_str_size - entry_str_len - 1; /* \0 */
+ if (remaining_space <= 0)
+ goto out;
+
+ if (filename_len > (size_t)remaining_space) {
+ filename += filename_len - remaining_space;
+ filename_len = remaining_space;
+ }
+
+ to_move = entry_str_len - ttrace->filename.entry_str_pos + 1; /* \0 */
+ pos = ttrace->entry_str + ttrace->filename.entry_str_pos;
+ memmove(pos + filename_len, pos, to_move);
+ memcpy(pos, filename, filename_len);
+
+ ttrace->filename.ptr = 0;
+ ttrace->filename.entry_str_pos = 0;
+out:
return 0;
}
@@ -2214,19 +2386,20 @@ static int trace__record(struct trace *trace, int argc, const char **argv)
static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
-static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
+static bool perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
{
struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
if (evsel == NULL)
- return;
+ return false;
if (perf_evsel__field(evsel, "pathname") == NULL) {
perf_evsel__delete(evsel);
- return;
+ return false;
}
evsel->handler = trace__vfs_getname;
perf_evlist__add(evlist, evsel);
+ return true;
}
static int perf_evlist__add_pgfault(struct perf_evlist *evlist,
@@ -2283,9 +2456,68 @@ static void trace__handle_event(struct trace *trace, union perf_event *event, st
}
}
+static int trace__add_syscall_newtp(struct trace *trace)
+{
+ int ret = -1;
+ struct perf_evlist *evlist = trace->evlist;
+ struct perf_evsel *sys_enter, *sys_exit;
+
+ sys_enter = perf_evsel__syscall_newtp("sys_enter", trace__sys_enter);
+ if (sys_enter == NULL)
+ goto out;
+
+ if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
+ goto out_delete_sys_enter;
+
+ sys_exit = perf_evsel__syscall_newtp("sys_exit", trace__sys_exit);
+ if (sys_exit == NULL)
+ goto out_delete_sys_enter;
+
+ if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
+ goto out_delete_sys_exit;
+
+ perf_evlist__add(evlist, sys_enter);
+ perf_evlist__add(evlist, sys_exit);
+
+ trace->syscalls.events.sys_enter = sys_enter;
+ trace->syscalls.events.sys_exit = sys_exit;
+
+ ret = 0;
+out:
+ return ret;
+
+out_delete_sys_exit:
+ perf_evsel__delete_priv(sys_exit);
+out_delete_sys_enter:
+ perf_evsel__delete_priv(sys_enter);
+ goto out;
+}
+
+static int trace__set_ev_qualifier_filter(struct trace *trace)
+{
+ int err = -1;
+ char *filter = asprintf_expr_inout_ints("id", !trace->not_ev_qualifier,
+ trace->ev_qualifier_ids.nr,
+ trace->ev_qualifier_ids.entries);
+
+ if (filter == NULL)
+ goto out_enomem;
+
+ if (!perf_evsel__append_filter(trace->syscalls.events.sys_enter, "&&", filter))
+ err = perf_evsel__append_filter(trace->syscalls.events.sys_exit, "&&", filter);
+
+ free(filter);
+out:
+ return err;
+out_enomem:
+ errno = ENOMEM;
+ goto out;
+}
+
static int trace__run(struct trace *trace, int argc, const char **argv)
{
struct perf_evlist *evlist = trace->evlist;
+ struct perf_evsel *evsel;
int err = -1, i;
unsigned long before;
const bool forks = argc > 0;
@@ -2293,13 +2525,11 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
trace->live = true;
- if (trace->trace_syscalls &&
- perf_evlist__add_syscall_newtp(evlist, trace__sys_enter,
- trace__sys_exit))
+ if (trace->trace_syscalls && trace__add_syscall_newtp(trace))
goto out_error_raw_syscalls;
if (trace->trace_syscalls)
- perf_evlist__add_vfs_getname(evlist);
+ trace->vfs_getname = perf_evlist__add_vfs_getname(evlist);
if ((trace->trace_pgfaults & TRACE_PFMAJ) &&
perf_evlist__add_pgfault(evlist, PERF_COUNT_SW_PAGE_FAULTS_MAJ)) {
@@ -2356,11 +2586,22 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
else if (thread_map__pid(evlist->threads, 0) == -1)
err = perf_evlist__set_filter_pid(evlist, getpid());
- if (err < 0) {
- printf("err=%d,%s\n", -err, strerror(-err));
- exit(1);
+ if (err < 0)
+ goto out_error_mem;
+
+ if (trace->ev_qualifier_ids.nr > 0) {
+ err = trace__set_ev_qualifier_filter(trace);
+ if (err < 0)
+ goto out_errno;
+
+ pr_debug("event qualifier tracepoint filter: %s\n",
+ trace->syscalls.events.sys_exit->filter);
}
+ err = perf_evlist__apply_filters(evlist, &evsel);
+ if (err < 0)
+ goto out_error_apply_filters;
+
err = perf_evlist__mmap(evlist, trace->opts.mmap_pages, false);
if (err < 0)
goto out_error_mmap;
@@ -2462,10 +2703,21 @@ out_error_open:
out_error:
fprintf(trace->output, "%s\n", errbuf);
goto out_delete_evlist;
+
+out_error_apply_filters:
+ fprintf(trace->output,
+ "Failed to set filter \"%s\" on event %s with %d (%s)\n",
+ evsel->filter, perf_evsel__name(evsel), errno,
+ strerror_r(errno, errbuf, sizeof(errbuf)));
+ goto out_delete_evlist;
}
out_error_mem:
fprintf(trace->output, "Not enough memory to run!\n");
goto out_delete_evlist;
+
+out_errno:
+ fprintf(trace->output, "errno=%d,%s\n", errno, strerror(errno));
+ goto out_delete_evlist;
}
static int trace__replay(struct trace *trace)
@@ -2586,9 +2838,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
printed += fprintf(fp, "\n");
- printed += fprintf(fp, " syscall calls min avg max stddev\n");
- printed += fprintf(fp, " (msec) (msec) (msec) (%%)\n");
- printed += fprintf(fp, " --------------- -------- --------- --------- --------- ------\n");
+ printed += fprintf(fp, " syscall calls total min avg max stddev\n");
+ printed += fprintf(fp, " (msec) (msec) (msec) (msec) (%%)\n");
+ printed += fprintf(fp, " --------------- -------- --------- --------- --------- --------- ------\n");
/* each int_node is a syscall */
while (inode) {
@@ -2605,8 +2857,8 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
sc = &trace->syscalls.table[inode->i];
printed += fprintf(fp, " %-15s", sc->name);
- printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
- n, min, avg);
+ printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f %9.3f",
+ n, avg * n, min, avg);
printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
}
@@ -2778,7 +3030,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
.mmap_pages = UINT_MAX,
.proc_map_timeout = 500,
},
- .output = stdout,
+ .output = stderr,
.show_comm = true,
.trace_syscalls = true,
};
@@ -2879,11 +3131,14 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
if (ev_qualifier_str != NULL) {
const char *s = ev_qualifier_str;
+ struct strlist_config slist_config = {
+ .dirname = system_path(STRACE_GROUPS_DIR),
+ };
trace.not_ev_qualifier = *s == '!';
if (trace.not_ev_qualifier)
++s;
- trace.ev_qualifier = strlist__new(true, s);
+ trace.ev_qualifier = strlist__new(s, &slist_config);
if (trace.ev_qualifier == NULL) {
fputs("Not enough memory to parse event qualifier",
trace.output);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d31fac19c30b..827557fc7511 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -11,7 +11,7 @@ ifneq ($(obj-perf),)
obj-perf := $(abspath $(obj-perf))/
endif
-$(shell echo -n > $(OUTPUT).config-detected)
+$(shell printf "" > $(OUTPUT).config-detected)
detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
@@ -297,7 +297,11 @@ ifndef NO_LIBELF
else
CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
LDFLAGS += $(LIBDW_LDFLAGS)
- EXTLIBS += -ldw
+ DWARFLIBS := -ldw
+ ifeq ($(findstring -static,${LDFLAGS}),-static)
+ DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
+ endif
+ EXTLIBS += ${DWARFLIBS}
$(call detected,CONFIG_DWARF)
endif # PERF_HAVE_DWARF_REGS
endif # NO_DWARF
@@ -644,6 +648,7 @@ infodir = share/info
perfexecdir = libexec/perf-core
sharedir = $(prefix)/share
template_dir = share/perf-core/templates
+STRACE_GROUPS_DIR = share/perf-core/strace/groups
htmldir = share/doc/perf-doc
ifeq ($(prefix),/usr)
sysconfdir = /etc
@@ -663,6 +668,7 @@ libdir = $(prefix)/$(lib)
# Shell quote (do not use $(call) to accommodate ancient setups);
ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
+STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
bindir_SQ = $(subst ','\'',$(bindir))
mandir_SQ = $(subst ','\'',$(mandir))
@@ -676,10 +682,13 @@ libdir_SQ = $(subst ','\'',$(libdir))
ifneq ($(filter /%,$(firstword $(perfexecdir))),)
perfexec_instdir = $(perfexecdir)
+STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
else
perfexec_instdir = $(prefix)/$(perfexecdir)
+STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
endif
perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
+STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
# If we install to $(HOME) we keep the traceevent default:
# $(HOME)/.traceevent/plugins
@@ -713,6 +722,7 @@ $(call detected_var,htmldir_SQ)
$(call detected_var,infodir_SQ)
$(call detected_var,mandir_SQ)
$(call detected_var,ETC_PERFCONFIG_SQ)
+$(call detected_var,STRACE_GROUPS_DIR_SQ)
$(call detected_var,prefix_SQ)
$(call detected_var,perfexecdir_SQ)
$(call detected_var,LIBDIR)
diff --git a/tools/perf/perf-with-kcore.sh b/tools/perf/perf-with-kcore.sh
index c7ff90a90e4e..7e47a7cbc195 100644
--- a/tools/perf/perf-with-kcore.sh
+++ b/tools/perf/perf-with-kcore.sh
@@ -50,7 +50,7 @@ copy_kcore()
fi
rm -f perf.data.junk
- ("$PERF" record -o perf.data.junk $PERF_OPTIONS -- sleep 60) >/dev/null 2>/dev/null &
+ ("$PERF" record -o perf.data.junk "${PERF_OPTIONS[@]}" -- sleep 60) >/dev/null 2>/dev/null &
PERF_PID=$!
# Need to make sure that perf has started
@@ -160,18 +160,18 @@ record()
echo "*** WARNING *** /proc/sys/kernel/kptr_restrict prevents access to kernel addresses" >&2
fi
- if echo "$PERF_OPTIONS" | grep -q ' -a \|^-a \| -a$\|^-a$\| --all-cpus \|^--all-cpus \| --all-cpus$\|^--all-cpus$' ; then
+ if echo "${PERF_OPTIONS[@]}" | grep -q ' -a \|^-a \| -a$\|^-a$\| --all-cpus \|^--all-cpus \| --all-cpus$\|^--all-cpus$' ; then
echo "*** WARNING *** system-wide tracing without root access will not be able to read all necessary information from /proc" >&2
fi
- if echo "$PERF_OPTIONS" | grep -q 'intel_pt\|intel_bts\| -I\|^-I' ; then
+ if echo "${PERF_OPTIONS[@]}" | grep -q 'intel_pt\|intel_bts\| -I\|^-I' ; then
if [ "$(cat /proc/sys/kernel/perf_event_paranoid)" -gt -1 ] ; then
echo "*** WARNING *** /proc/sys/kernel/perf_event_paranoid restricts buffer size and tracepoint (sched_switch) use" >&2
fi
- if echo "$PERF_OPTIONS" | grep -q ' --per-thread \|^--per-thread \| --per-thread$\|^--per-thread$' ; then
+ if echo "${PERF_OPTIONS[@]}" | grep -q ' --per-thread \|^--per-thread \| --per-thread$\|^--per-thread$' ; then
true
- elif echo "$PERF_OPTIONS" | grep -q ' -t \|^-t \| -t$\|^-t$' ; then
+ elif echo "${PERF_OPTIONS[@]}" | grep -q ' -t \|^-t \| -t$\|^-t$' ; then
true
elif [ ! -r /sys/kernel/debug -o ! -x /sys/kernel/debug ] ; then
echo "*** WARNING *** /sys/kernel/debug permissions prevent tracepoint (sched_switch) use" >&2
@@ -193,8 +193,8 @@ record()
mkdir "$PERF_DATA_DIR"
- echo "$PERF record -o $PERF_DATA_DIR/perf.data $PERF_OPTIONS -- $*"
- "$PERF" record -o "$PERF_DATA_DIR/perf.data" $PERF_OPTIONS -- $* || true
+ echo "$PERF record -o $PERF_DATA_DIR/perf.data ${PERF_OPTIONS[@]} -- $@"
+ "$PERF" record -o "$PERF_DATA_DIR/perf.data" "${PERF_OPTIONS[@]}" -- "$@" || true
if rmdir "$PERF_DATA_DIR" > /dev/null 2>/dev/null ; then
exit 1
@@ -209,8 +209,8 @@ subcommand()
{
find_perf
check_buildid_cache_permissions
- echo "$PERF $PERF_SUB_COMMAND -i $PERF_DATA_DIR/perf.data --kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms $*"
- "$PERF" $PERF_SUB_COMMAND -i "$PERF_DATA_DIR/perf.data" "--kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms" $*
+ echo "$PERF $PERF_SUB_COMMAND -i $PERF_DATA_DIR/perf.data --kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms $@"
+ "$PERF" $PERF_SUB_COMMAND -i "$PERF_DATA_DIR/perf.data" "--kallsyms=$PERF_DATA_DIR/kcore_dir/kallsyms" "$@"
}
if [ "$1" = "fix_buildid_cache_permissions" ] ; then
@@ -234,7 +234,7 @@ fi
case "$PERF_SUB_COMMAND" in
"record")
while [ "$1" != "--" ] ; do
- PERF_OPTIONS+="$1 "
+ PERF_OPTIONS+=("$1")
shift || break
done
if [ "$1" != "--" ] ; then
@@ -242,16 +242,16 @@ case "$PERF_SUB_COMMAND" in
usage
fi
shift
- record $*
+ record "$@"
;;
"script")
- subcommand $*
+ subcommand "$@"
;;
"report")
- subcommand $*
+ subcommand "$@"
;;
"inject")
- subcommand $*
+ subcommand "$@"
;;
*)
usage
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index b857fcbd00cf..07dbff5c0e60 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -231,7 +231,7 @@ static int handle_options(const char ***argv, int *argc, int *envchanged)
(*argc)--;
} else if (!prefixcmp(cmd, CMD_DEBUGFS_DIR)) {
perf_debugfs_set_path(cmd + strlen(CMD_DEBUGFS_DIR));
- fprintf(stderr, "dir: %s\n", debugfs_mountpoint);
+ fprintf(stderr, "dir: %s\n", tracing_path);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--list-cmds")) {
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 4a5827fff799..cccb4cf575d3 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -51,11 +51,14 @@ struct record_opts {
bool sample_address;
bool sample_weight;
bool sample_time;
+ bool sample_time_set;
+ bool callgraph_set;
bool period;
bool sample_intr_regs;
bool running_time;
bool full_auxtrace;
bool auxtrace_snapshot_mode;
+ bool record_switch_events;
unsigned int freq;
unsigned int mmap_pages;
unsigned int auxtrace_mmap_pages;
diff --git a/tools/perf/python/twatch.py b/tools/perf/python/twatch.py
index 2225162ee1fc..b9d508336ae6 100755
--- a/tools/perf/python/twatch.py
+++ b/tools/perf/python/twatch.py
@@ -18,10 +18,20 @@ import perf
def main():
cpus = perf.cpu_map()
threads = perf.thread_map()
- evsel = perf.evsel(task = 1, comm = 1, mmap = 0,
+ evsel = perf.evsel(type = perf.TYPE_SOFTWARE,
+ config = perf.COUNT_SW_DUMMY,
+ task = 1, comm = 1, mmap = 0, freq = 0,
wakeup_events = 1, watermark = 1,
sample_id_all = 1,
sample_type = perf.SAMPLE_PERIOD | perf.SAMPLE_TID | perf.SAMPLE_CPU)
+
+ """What we want are just the PERF_RECORD_ lifetime events for threads,
+ using the default, PERF_TYPE_HARDWARE + PERF_COUNT_HW_CYCLES & freq=1
+ (the default), makes perf reenable irq_vectors:local_timer_entry, when
+ disabling nohz, not good for some use cases where all we want is to get
+ threads comes and goes... So use (perf.TYPE_SOFTWARE, perf_COUNT_SW_DUMMY,
+ freq=0) instead."""
+
evsel.open(cpus = cpus, threads = threads);
evlist = perf.evlist(cpus, threads)
evlist.add(evsel)
diff --git a/tools/perf/scripts/python/bin/compaction-times-record b/tools/perf/scripts/python/bin/compaction-times-record
new file mode 100644
index 000000000000..6edcd40e14e8
--- /dev/null
+++ b/tools/perf/scripts/python/bin/compaction-times-record
@@ -0,0 +1,2 @@
+#!/bin/bash
+perf record -e compaction:mm_compaction_begin -e compaction:mm_compaction_end -e compaction:mm_compaction_migratepages -e compaction:mm_compaction_isolate_migratepages -e compaction:mm_compaction_isolate_freepages $@
diff --git a/tools/perf/scripts/python/bin/compaction-times-report b/tools/perf/scripts/python/bin/compaction-times-report
new file mode 100644
index 000000000000..3dc13897cfde
--- /dev/null
+++ b/tools/perf/scripts/python/bin/compaction-times-report
@@ -0,0 +1,4 @@
+#!/bin/bash
+#description: display time taken by mm compaction
+#args: [-h] [-u] [-p|-pv] [-t | [-m] [-fs] [-ms]] [pid|pid-range|comm-regex]
+perf script -s "$PERF_EXEC_PATH"/scripts/python/compaction-times.py $@
diff --git a/tools/perf/scripts/python/call-graph-from-postgresql.py b/tools/perf/scripts/python/call-graph-from-postgresql.py
new file mode 100644
index 000000000000..e78fdc2a5a9d
--- /dev/null
+++ b/tools/perf/scripts/python/call-graph-from-postgresql.py
@@ -0,0 +1,327 @@
+#!/usr/bin/python2
+# call-graph-from-postgresql.py: create call-graph from postgresql database
+# Copyright (c) 2014, Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+
+# To use this script you will need to have exported data using the
+# export-to-postgresql.py script. Refer to that script for details.
+#
+# Following on from the example in the export-to-postgresql.py script, a
+# call-graph can be displayed for the pt_example database like this:
+#
+# python tools/perf/scripts/python/call-graph-from-postgresql.py pt_example
+#
+# Note this script supports connecting to remote databases by setting hostname,
+# port, username, password, and dbname e.g.
+#
+# python tools/perf/scripts/python/call-graph-from-postgresql.py "hostname=myhost username=myuser password=mypassword dbname=pt_example"
+#
+# The result is a GUI window with a tree representing a context-sensitive
+# call-graph. Expanding a couple of levels of the tree and adjusting column
+# widths to suit will display something like:
+#
+# Call Graph: pt_example
+# Call Path Object Count Time(ns) Time(%) Branch Count Branch Count(%)
+# v- ls
+# v- 2638:2638
+# v- _start ld-2.19.so 1 10074071 100.0 211135 100.0
+# |- unknown unknown 1 13198 0.1 1 0.0
+# >- _dl_start ld-2.19.so 1 1400980 13.9 19637 9.3
+# >- _d_linit_internal ld-2.19.so 1 448152 4.4 11094 5.3
+# v-__libc_start_main@plt ls 1 8211741 81.5 180397 85.4
+# >- _dl_fixup ld-2.19.so 1 7607 0.1 108 0.1
+# >- __cxa_atexit libc-2.19.so 1 11737 0.1 10 0.0
+# >- __libc_csu_init ls 1 10354 0.1 10 0.0
+# |- _setjmp libc-2.19.so 1 0 0.0 4 0.0
+# v- main ls 1 8182043 99.6 180254 99.9
+#
+# Points to note:
+# The top level is a command name (comm)
+# The next level is a thread (pid:tid)
+# Subsequent levels are functions
+# 'Count' is the number of calls
+# 'Time' is the elapsed time until the function returns
+# Percentages are relative to the level above
+# 'Branch Count' is the total number of branches for that function and all
+# functions that it calls
+
+import sys
+from PySide.QtCore import *
+from PySide.QtGui import *
+from PySide.QtSql import *
+from decimal import *
+
+class TreeItem():
+
+ def __init__(self, db, row, parent_item):
+ self.db = db
+ self.row = row
+ self.parent_item = parent_item
+ self.query_done = False;
+ self.child_count = 0
+ self.child_items = []
+ self.data = ["", "", "", "", "", "", ""]
+ self.comm_id = 0
+ self.thread_id = 0
+ self.call_path_id = 1
+ self.branch_count = 0
+ self.time = 0
+ if not parent_item:
+ self.setUpRoot()
+
+ def setUpRoot(self):
+ self.query_done = True
+ query = QSqlQuery(self.db)
+ ret = query.exec_('SELECT id, comm FROM comms')
+ if not ret:
+ raise Exception("Query failed: " + query.lastError().text())
+ while query.next():
+ if not query.value(0):
+ continue
+ child_item = TreeItem(self.db, self.child_count, self)
+ self.child_items.append(child_item)
+ self.child_count += 1
+ child_item.setUpLevel1(query.value(0), query.value(1))
+
+ def setUpLevel1(self, comm_id, comm):
+ self.query_done = True;
+ self.comm_id = comm_id
+ self.data[0] = comm
+ self.child_items = []
+ self.child_count = 0
+ query = QSqlQuery(self.db)
+ ret = query.exec_('SELECT thread_id, ( SELECT pid FROM threads WHERE id = thread_id ), ( SELECT tid FROM threads WHERE id = thread_id ) FROM comm_threads WHERE comm_id = ' + str(comm_id))
+ if not ret:
+ raise Exception("Query failed: " + query.lastError().text())
+ while query.next():
+ child_item = TreeItem(self.db, self.child_count, self)
+ self.child_items.append(child_item)
+ self.child_count += 1
+ child_item.setUpLevel2(comm_id, query.value(0), query.value(1), query.value(2))
+
+ def setUpLevel2(self, comm_id, thread_id, pid, tid):
+ self.comm_id = comm_id
+ self.thread_id = thread_id
+ self.data[0] = str(pid) + ":" + str(tid)
+
+ def getChildItem(self, row):
+ return self.child_items[row]
+
+ def getParentItem(self):
+ return self.parent_item
+
+ def getRow(self):
+ return self.row
+
+ def timePercent(self, b):
+ if not self.time:
+ return "0.0"
+ x = (b * Decimal(100)) / self.time
+ return str(x.quantize(Decimal('.1'), rounding=ROUND_HALF_UP))
+
+ def branchPercent(self, b):
+ if not self.branch_count:
+ return "0.0"
+ x = (b * Decimal(100)) / self.branch_count
+ return str(x.quantize(Decimal('.1'), rounding=ROUND_HALF_UP))
+
+ def addChild(self, call_path_id, name, dso, count, time, branch_count):
+ child_item = TreeItem(self.db, self.child_count, self)
+ child_item.comm_id = self.comm_id
+ child_item.thread_id = self.thread_id
+ child_item.call_path_id = call_path_id
+ child_item.branch_count = branch_count
+ child_item.time = time
+ child_item.data[0] = name
+ if dso == "[kernel.kallsyms]":
+ dso = "[kernel]"
+ child_item.data[1] = dso
+ child_item.data[2] = str(count)
+ child_item.data[3] = str(time)
+ child_item.data[4] = self.timePercent(time)
+ child_item.data[5] = str(branch_count)
+ child_item.data[6] = self.branchPercent(branch_count)
+ self.child_items.append(child_item)
+ self.child_count += 1
+
+ def selectCalls(self):
+ self.query_done = True;
+ query = QSqlQuery(self.db)
+ ret = query.exec_('SELECT id, call_path_id, branch_count, call_time, return_time, '
+ '( SELECT name FROM symbols WHERE id = ( SELECT symbol_id FROM call_paths WHERE id = call_path_id ) ), '
+ '( SELECT short_name FROM dsos WHERE id = ( SELECT dso_id FROM symbols WHERE id = ( SELECT symbol_id FROM call_paths WHERE id = call_path_id ) ) ), '
+ '( SELECT ip FROM call_paths where id = call_path_id ) '
+ 'FROM calls WHERE parent_call_path_id = ' + str(self.call_path_id) + ' AND comm_id = ' + str(self.comm_id) + ' AND thread_id = ' + str(self.thread_id) +
+ 'ORDER BY call_path_id')
+ if not ret:
+ raise Exception("Query failed: " + query.lastError().text())
+ last_call_path_id = 0
+ name = ""
+ dso = ""
+ count = 0
+ branch_count = 0
+ total_branch_count = 0
+ time = 0
+ total_time = 0
+ while query.next():
+ if query.value(1) == last_call_path_id:
+ count += 1
+ branch_count += query.value(2)
+ time += query.value(4) - query.value(3)
+ else:
+ if count:
+ self.addChild(last_call_path_id, name, dso, count, time, branch_count)
+ last_call_path_id = query.value(1)
+ name = query.value(5)
+ dso = query.value(6)
+ count = 1
+ total_branch_count += branch_count
+ total_time += time
+ branch_count = query.value(2)
+ time = query.value(4) - query.value(3)
+ if count:
+ self.addChild(last_call_path_id, name, dso, count, time, branch_count)
+ total_branch_count += branch_count
+ total_time += time
+ # Top level does not have time or branch count, so fix that here
+ if total_branch_count > self.branch_count:
+ self.branch_count = total_branch_count
+ if self.branch_count:
+ for child_item in self.child_items:
+ child_item.data[6] = self.branchPercent(child_item.branch_count)
+ if total_time > self.time:
+ self.time = total_time
+ if self.time:
+ for child_item in self.child_items:
+ child_item.data[4] = self.timePercent(child_item.time)
+
+ def childCount(self):
+ if not self.query_done:
+ self.selectCalls()
+ return self.child_count
+
+ def columnCount(self):
+ return 7
+
+ def columnHeader(self, column):
+ headers = ["Call Path", "Object", "Count ", "Time (ns) ", "Time (%) ", "Branch Count ", "Branch Count (%) "]
+ return headers[column]
+
+ def getData(self, column):
+ return self.data[column]
+
+class TreeModel(QAbstractItemModel):
+
+ def __init__(self, db, parent=None):
+ super(TreeModel, self).__init__(parent)
+ self.db = db
+ self.root = TreeItem(db, 0, None)
+
+ def columnCount(self, parent):
+ return self.root.columnCount()
+
+ def rowCount(self, parent):
+ if parent.isValid():
+ parent_item = parent.internalPointer()
+ else:
+ parent_item = self.root
+ return parent_item.childCount()
+
+ def headerData(self, section, orientation, role):
+ if role == Qt.TextAlignmentRole:
+ if section > 1:
+ return Qt.AlignRight
+ if role != Qt.DisplayRole:
+ return None
+ if orientation != Qt.Horizontal:
+ return None
+ return self.root.columnHeader(section)
+
+ def parent(self, child):
+ child_item = child.internalPointer()
+ if child_item is self.root:
+ return QModelIndex()
+ parent_item = child_item.getParentItem()
+ return self.createIndex(parent_item.getRow(), 0, parent_item)
+
+ def index(self, row, column, parent):
+ if parent.isValid():
+ parent_item = parent.internalPointer()
+ else:
+ parent_item = self.root
+ child_item = parent_item.getChildItem(row)
+ return self.createIndex(row, column, child_item)
+
+ def data(self, index, role):
+ if role == Qt.TextAlignmentRole:
+ if index.column() > 1:
+ return Qt.AlignRight
+ if role != Qt.DisplayRole:
+ return None
+ index_item = index.internalPointer()
+ return index_item.getData(index.column())
+
+class MainWindow(QMainWindow):
+
+ def __init__(self, db, dbname, parent=None):
+ super(MainWindow, self).__init__(parent)
+
+ self.setObjectName("MainWindow")
+ self.setWindowTitle("Call Graph: " + dbname)
+ self.move(100, 100)
+ self.resize(800, 600)
+ style = self.style()
+ icon = style.standardIcon(QStyle.SP_MessageBoxInformation)
+ self.setWindowIcon(icon);
+
+ self.model = TreeModel(db)
+
+ self.view = QTreeView()
+ self.view.setModel(self.model)
+
+ self.setCentralWidget(self.view)
+
+if __name__ == '__main__':
+ if (len(sys.argv) < 2):
+ print >> sys.stderr, "Usage is: call-graph-from-postgresql.py <database name>"
+ raise Exception("Too few arguments")
+
+ dbname = sys.argv[1]
+
+ db = QSqlDatabase.addDatabase('QPSQL')
+
+ opts = dbname.split()
+ for opt in opts:
+ if '=' in opt:
+ opt = opt.split('=')
+ if opt[0] == 'hostname':
+ db.setHostName(opt[1])
+ elif opt[0] == 'port':
+ db.setPort(int(opt[1]))
+ elif opt[0] == 'username':
+ db.setUserName(opt[1])
+ elif opt[0] == 'password':
+ db.setPassword(opt[1])
+ elif opt[0] == 'dbname':
+ dbname = opt[1]
+ else:
+ dbname = opt
+
+ db.setDatabaseName(dbname)
+ if not db.open():
+ raise Exception("Failed to open database " + dbname + " error: " + db.lastError().text())
+
+ app = QApplication(sys.argv)
+ window = MainWindow(db, dbname)
+ window.show()
+ err = app.exec_()
+ db.close()
+ sys.exit(err)
diff --git a/tools/perf/scripts/python/compaction-times.py b/tools/perf/scripts/python/compaction-times.py
new file mode 100644
index 000000000000..239cb0568ec3
--- /dev/null
+++ b/tools/perf/scripts/python/compaction-times.py
@@ -0,0 +1,311 @@
+# report time spent in compaction
+# Licensed under the terms of the GNU GPL License version 2
+
+# testing:
+# 'echo 1 > /proc/sys/vm/compact_memory' to force compaction of all zones
+
+import os
+import sys
+import re
+
+import signal
+signal.signal(signal.SIGPIPE, signal.SIG_DFL)
+
+usage = "usage: perf script report compaction-times.py -- [-h] [-u] [-p|-pv] [-t | [-m] [-fs] [-ms]] [pid|pid-range|comm-regex]\n"
+
+class popt:
+ DISP_DFL = 0
+ DISP_PROC = 1
+ DISP_PROC_VERBOSE=2
+
+class topt:
+ DISP_TIME = 0
+ DISP_MIG = 1
+ DISP_ISOLFREE = 2
+ DISP_ISOLMIG = 4
+ DISP_ALL = 7
+
+class comm_filter:
+ def __init__(self, re):
+ self.re = re
+
+ def filter(self, pid, comm):
+ m = self.re.search(comm)
+ return m == None or m.group() == ""
+
+class pid_filter:
+ def __init__(self, low, high):
+ self.low = (0 if low == "" else int(low))
+ self.high = (0 if high == "" else int(high))
+
+ def filter(self, pid, comm):
+ return not (pid >= self.low and (self.high == 0 or pid <= self.high))
+
+def set_type(t):
+ global opt_disp
+ opt_disp = (t if opt_disp == topt.DISP_ALL else opt_disp|t)
+
+def ns(sec, nsec):
+ return (sec * 1000000000) + nsec
+
+def time(ns):
+ return "%dns" % ns if opt_ns else "%dus" % (round(ns, -3) / 1000)
+
+class pair:
+ def __init__(self, aval, bval, alabel = None, blabel = None):
+ self.alabel = alabel
+ self.blabel = blabel
+ self.aval = aval
+ self.bval = bval
+
+ def __add__(self, rhs):
+ self.aval += rhs.aval
+ self.bval += rhs.bval
+ return self
+
+ def __str__(self):
+ return "%s=%d %s=%d" % (self.alabel, self.aval, self.blabel, self.bval)
+
+class cnode:
+ def __init__(self, ns):
+ self.ns = ns
+ self.migrated = pair(0, 0, "moved", "failed")
+ self.fscan = pair(0,0, "scanned", "isolated")
+ self.mscan = pair(0,0, "scanned", "isolated")
+
+ def __add__(self, rhs):
+ self.ns += rhs.ns
+ self.migrated += rhs.migrated
+ self.fscan += rhs.fscan
+ self.mscan += rhs.mscan
+ return self
+
+ def __str__(self):
+ prev = 0
+ s = "%s " % time(self.ns)
+ if (opt_disp & topt.DISP_MIG):
+ s += "migration: %s" % self.migrated
+ prev = 1
+ if (opt_disp & topt.DISP_ISOLFREE):
+ s += "%sfree_scanner: %s" % (" " if prev else "", self.fscan)
+ prev = 1
+ if (opt_disp & topt.DISP_ISOLMIG):
+ s += "%smigration_scanner: %s" % (" " if prev else "", self.mscan)
+ return s
+
+ def complete(self, secs, nsecs):
+ self.ns = ns(secs, nsecs) - self.ns
+
+ def increment(self, migrated, fscan, mscan):
+ if (migrated != None):
+ self.migrated += migrated
+ if (fscan != None):
+ self.fscan += fscan
+ if (mscan != None):
+ self.mscan += mscan
+
+
+class chead:
+ heads = {}
+ val = cnode(0);
+ fobj = None
+
+ @classmethod
+ def add_filter(cls, filter):
+ cls.fobj = filter
+
+ @classmethod
+ def create_pending(cls, pid, comm, start_secs, start_nsecs):
+ filtered = 0
+ try:
+ head = cls.heads[pid]
+ filtered = head.is_filtered()
+ except KeyError:
+ if cls.fobj != None:
+ filtered = cls.fobj.filter(pid, comm)
+ head = cls.heads[pid] = chead(comm, pid, filtered)
+
+ if not filtered:
+ head.mark_pending(start_secs, start_nsecs)
+
+ @classmethod
+ def increment_pending(cls, pid, migrated, fscan, mscan):
+ head = cls.heads[pid]
+ if not head.is_filtered():
+ if head.is_pending():
+ head.do_increment(migrated, fscan, mscan)
+ else:
+ sys.stderr.write("missing start compaction event for pid %d\n" % pid)
+
+ @classmethod
+ def complete_pending(cls, pid, secs, nsecs):
+ head = cls.heads[pid]
+ if not head.is_filtered():
+ if head.is_pending():
+ head.make_complete(secs, nsecs)
+ else:
+ sys.stderr.write("missing start compaction event for pid %d\n" % pid)
+
+ @classmethod
+ def gen(cls):
+ if opt_proc != popt.DISP_DFL:
+ for i in cls.heads:
+ yield cls.heads[i]
+
+ @classmethod
+ def str(cls):
+ return cls.val
+
+ def __init__(self, comm, pid, filtered):
+ self.comm = comm
+ self.pid = pid
+ self.val = cnode(0)
+ self.pending = None
+ self.filtered = filtered
+ self.list = []
+
+ def __add__(self, rhs):
+ self.ns += rhs.ns
+ self.val += rhs.val
+ return self
+
+ def mark_pending(self, secs, nsecs):
+ self.pending = cnode(ns(secs, nsecs))
+
+ def do_increment(self, migrated, fscan, mscan):
+ self.pending.increment(migrated, fscan, mscan)
+
+ def make_complete(self, secs, nsecs):
+ self.pending.complete(secs, nsecs)
+ chead.val += self.pending
+
+ if opt_proc != popt.DISP_DFL:
+ self.val += self.pending
+
+ if opt_proc == popt.DISP_PROC_VERBOSE:
+ self.list.append(self.pending)
+ self.pending = None
+
+ def enumerate(self):
+ if opt_proc == popt.DISP_PROC_VERBOSE and not self.is_filtered():
+ for i, pelem in enumerate(self.list):
+ sys.stdout.write("%d[%s].%d: %s\n" % (self.pid, self.comm, i+1, pelem))
+
+ def is_pending(self):
+ return self.pending != None
+
+ def is_filtered(self):
+ return self.filtered
+
+ def display(self):
+ if not self.is_filtered():
+ sys.stdout.write("%d[%s]: %s\n" % (self.pid, self.comm, self.val))
+
+
+def trace_end():
+ sys.stdout.write("total: %s\n" % chead.str())
+ for i in chead.gen():
+ i.display(),
+ i.enumerate()
+
+def compaction__mm_compaction_migratepages(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ common_callchain, nr_migrated, nr_failed):
+
+ chead.increment_pending(common_pid,
+ pair(nr_migrated, nr_failed), None, None)
+
+def compaction__mm_compaction_isolate_freepages(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ common_callchain, start_pfn, end_pfn, nr_scanned, nr_taken):
+
+ chead.increment_pending(common_pid,
+ None, pair(nr_scanned, nr_taken), None)
+
+def compaction__mm_compaction_isolate_migratepages(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ common_callchain, start_pfn, end_pfn, nr_scanned, nr_taken):
+
+ chead.increment_pending(common_pid,
+ None, None, pair(nr_scanned, nr_taken))
+
+def compaction__mm_compaction_end(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ common_callchain, zone_start, migrate_start, free_start, zone_end,
+ sync, status):
+
+ chead.complete_pending(common_pid, common_secs, common_nsecs)
+
+def compaction__mm_compaction_begin(event_name, context, common_cpu,
+ common_secs, common_nsecs, common_pid, common_comm,
+ common_callchain, zone_start, migrate_start, free_start, zone_end,
+ sync):
+
+ chead.create_pending(common_pid, common_comm, common_secs, common_nsecs)
+
+def pr_help():
+ global usage
+
+ sys.stdout.write(usage)
+ sys.stdout.write("\n")
+ sys.stdout.write("-h display this help\n")
+ sys.stdout.write("-p display by process\n")
+ sys.stdout.write("-pv display by process (verbose)\n")
+ sys.stdout.write("-t display stall times only\n")
+ sys.stdout.write("-m display stats for migration\n")
+ sys.stdout.write("-fs display stats for free scanner\n")
+ sys.stdout.write("-ms display stats for migration scanner\n")
+ sys.stdout.write("-u display results in microseconds (default nanoseconds)\n")
+
+
+comm_re = None
+pid_re = None
+pid_regex = "^(\d*)-(\d*)$|^(\d*)$"
+
+opt_proc = popt.DISP_DFL
+opt_disp = topt.DISP_ALL
+
+opt_ns = True
+
+argc = len(sys.argv) - 1
+if argc >= 1:
+ pid_re = re.compile(pid_regex)
+
+ for i, opt in enumerate(sys.argv[1:]):
+ if opt[0] == "-":
+ if opt == "-h":
+ pr_help()
+ exit(0);
+ elif opt == "-p":
+ opt_proc = popt.DISP_PROC
+ elif opt == "-pv":
+ opt_proc = popt.DISP_PROC_VERBOSE
+ elif opt == '-u':
+ opt_ns = False
+ elif opt == "-t":
+ set_type(topt.DISP_TIME)
+ elif opt == "-m":
+ set_type(topt.DISP_MIG)
+ elif opt == "-fs":
+ set_type(topt.DISP_ISOLFREE)
+ elif opt == "-ms":
+ set_type(topt.DISP_ISOLMIG)
+ else:
+ sys.exit(usage)
+
+ elif i == argc - 1:
+ m = pid_re.search(opt)
+ if m != None and m.group() != "":
+ if m.group(3) != None:
+ f = pid_filter(m.group(3), m.group(3))
+ else:
+ f = pid_filter(m.group(1), m.group(2))
+ else:
+ try:
+ comm_re=re.compile(opt)
+ except:
+ sys.stderr.write("invalid regex '%s'" % opt)
+ sys.exit(usage)
+ f = comm_filter(comm_re)
+
+ chead.add_filter(f)
diff --git a/tools/perf/scripts/python/export-to-postgresql.py b/tools/perf/scripts/python/export-to-postgresql.py
index 4cdafd880074..84a32037a80f 100644
--- a/tools/perf/scripts/python/export-to-postgresql.py
+++ b/tools/perf/scripts/python/export-to-postgresql.py
@@ -15,6 +15,53 @@ import sys
import struct
import datetime
+# To use this script you will need to have installed package python-pyside which
+# provides LGPL-licensed Python bindings for Qt. You will also need the package
+# libqt4-sql-psql for Qt postgresql support.
+#
+# The script assumes postgresql is running on the local machine and that the
+# user has postgresql permissions to create databases. Examples of installing
+# postgresql and adding such a user are:
+#
+# fedora:
+#
+# $ sudo yum install postgresql postgresql-server python-pyside qt-postgresql
+# $ sudo su - postgres -c initdb
+# $ sudo service postgresql start
+# $ sudo su - postgres
+# $ createuser <your user id here>
+# Shall the new role be a superuser? (y/n) y
+#
+# ubuntu:
+#
+# $ sudo apt-get install postgresql
+# $ sudo su - postgres
+# $ createuser <your user id here>
+# Shall the new role be a superuser? (y/n) y
+#
+# An example of using this script with Intel PT:
+#
+# $ perf record -e intel_pt//u ls
+# $ perf script -s ~/libexec/perf-core/scripts/python/export-to-postgresql.py pt_example branches calls
+# 2015-05-29 12:49:23.464364 Creating database...
+# 2015-05-29 12:49:26.281717 Writing to intermediate files...
+# 2015-05-29 12:49:27.190383 Copying to database...
+# 2015-05-29 12:49:28.140451 Removing intermediate files...
+# 2015-05-29 12:49:28.147451 Adding primary keys
+# 2015-05-29 12:49:28.655683 Adding foreign keys
+# 2015-05-29 12:49:29.365350 Done
+#
+# To browse the database, psql can be used e.g.
+#
+# $ psql pt_example
+# pt_example=# select * from samples_view where id < 100;
+# pt_example=# \d+
+# pt_example=# \d+ samples_view
+# pt_example=# \q
+#
+# An example of using the database is provided by the script
+# call-graph-from-postgresql.py. Refer to that script for details.
+
from PySide.QtSql import *
# Need to access PostgreSQL C library directly to use COPY FROM STDIN
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index d20d6e6ab65b..c1518bdd0f1b 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -32,6 +32,7 @@ perf-y += sample-parsing.o
perf-y += parse-no-sample-id-all.o
perf-y += kmod-path.o
perf-y += thread-map.o
+perf-y += llvm.o
perf-$(CONFIG_X86) += perf-time-to-tsc.o
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index c1dde733c3a6..136cd934be66 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -175,6 +175,10 @@ static struct test {
.func = test__thread_map,
},
{
+ .desc = "Test LLVM searching and compiling",
+ .func = test__llvm,
+ },
+ {
.func = NULL,
},
};
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 7d82c8be5e36..7ed737019de7 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -279,6 +279,7 @@ static int test1(struct perf_evsel *evsel, struct machine *machine)
symbol_conf.use_callchain = false;
symbol_conf.cumulate_callchain = false;
+ perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
setup_sorting();
callchain_register_param(&callchain_param);
@@ -425,6 +426,7 @@ static int test2(struct perf_evsel *evsel, struct machine *machine)
symbol_conf.use_callchain = true;
symbol_conf.cumulate_callchain = false;
+ perf_evsel__set_sample_bit(evsel, CALLCHAIN);
setup_sorting();
callchain_register_param(&callchain_param);
@@ -482,6 +484,7 @@ static int test3(struct perf_evsel *evsel, struct machine *machine)
symbol_conf.use_callchain = false;
symbol_conf.cumulate_callchain = true;
+ perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
setup_sorting();
callchain_register_param(&callchain_param);
@@ -665,6 +668,7 @@ static int test4(struct perf_evsel *evsel, struct machine *machine)
symbol_conf.use_callchain = true;
symbol_conf.cumulate_callchain = true;
+ perf_evsel__set_sample_bit(evsel, CALLCHAIN);
setup_sorting();
callchain_register_param(&callchain_param);
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
new file mode 100644
index 000000000000..a337356fd979
--- /dev/null
+++ b/tools/perf/tests/llvm.c
@@ -0,0 +1,98 @@
+#include <stdio.h>
+#include <bpf/libbpf.h>
+#include <util/llvm-utils.h>
+#include <util/cache.h>
+#include "tests.h"
+#include "debug.h"
+
+static int perf_config_cb(const char *var, const char *val,
+ void *arg __maybe_unused)
+{
+ return perf_default_config(var, val, arg);
+}
+
+/*
+ * Randomly give it a "version" section since we don't really load it
+ * into kernel
+ */
+static const char test_bpf_prog[] =
+ "__attribute__((section(\"do_fork\"), used)) "
+ "int fork(void *ctx) {return 0;} "
+ "char _license[] __attribute__((section(\"license\"), used)) = \"GPL\";"
+ "int _version __attribute__((section(\"version\"), used)) = 0x40100;";
+
+#ifdef HAVE_LIBBPF_SUPPORT
+static int test__bpf_parsing(void *obj_buf, size_t obj_buf_sz)
+{
+ struct bpf_object *obj;
+
+ obj = bpf_object__open_buffer(obj_buf, obj_buf_sz);
+ if (!obj)
+ return -1;
+ bpf_object__close(obj);
+ return 0;
+}
+#else
+static int test__bpf_parsing(void *obj_buf __maybe_unused,
+ size_t obj_buf_sz __maybe_unused)
+{
+ fprintf(stderr, " (skip bpf parsing)");
+ return 0;
+}
+#endif
+
+int test__llvm(void)
+{
+ char *tmpl_new, *clang_opt_new;
+ void *obj_buf;
+ size_t obj_buf_sz;
+ int err, old_verbose;
+
+ perf_config(perf_config_cb, NULL);
+
+ /*
+ * Skip this test if user's .perfconfig doesn't set [llvm] section
+ * and clang is not found in $PATH, and this is not perf test -v
+ */
+ if (verbose == 0 && !llvm_param.user_set_param && llvm__search_clang()) {
+ fprintf(stderr, " (no clang, try 'perf test -v LLVM')");
+ return TEST_SKIP;
+ }
+
+ old_verbose = verbose;
+ /*
+ * llvm is verbosity when error. Suppress all error output if
+ * not 'perf test -v'.
+ */
+ if (verbose == 0)
+ verbose = -1;
+
+ if (!llvm_param.clang_bpf_cmd_template)
+ return -1;
+
+ if (!llvm_param.clang_opt)
+ llvm_param.clang_opt = strdup("");
+
+ err = asprintf(&tmpl_new, "echo '%s' | %s", test_bpf_prog,
+ llvm_param.clang_bpf_cmd_template);
+ if (err < 0)
+ return -1;
+ err = asprintf(&clang_opt_new, "-xc %s", llvm_param.clang_opt);
+ if (err < 0)
+ return -1;
+
+ llvm_param.clang_bpf_cmd_template = tmpl_new;
+ llvm_param.clang_opt = clang_opt_new;
+ err = llvm__compile_bpf("-", &obj_buf, &obj_buf_sz);
+
+ verbose = old_verbose;
+ if (err) {
+ if (!verbose)
+ fprintf(stderr, " (use -v to see error message)");
+ return -1;
+ }
+
+ err = test__bpf_parsing(obj_buf, obj_buf_sz);
+ free(obj_buf);
+ return err;
+}
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 729112f4cfaa..ba31c4bd441d 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -58,7 +58,8 @@ make_install_man := install-man
make_install_html := install-html
make_install_info := install-info
make_install_pdf := install-pdf
-make_install_prefix := install prefix=/tmp/krava
+make_install_prefix := install prefix=/tmp/krava
+make_install_prefix_slash := install prefix=/tmp/krava/
make_static := LDFLAGS=-static
# all the NO_* variable combined
@@ -101,6 +102,7 @@ run += make_util_pmu_bison_o
run += make_install
run += make_install_bin
run += make_install_prefix
+run += make_install_prefix_slash
# FIXME 'install-*' commented out till they're fixed
# run += make_install_doc
# run += make_install_man
@@ -175,11 +177,14 @@ test_make_install_O := $(call test_dest_files,$(installed_files_all))
test_make_install_bin := $(call test_dest_files,$(installed_files_bin))
test_make_install_bin_O := $(call test_dest_files,$(installed_files_bin))
-# We prefix all installed files for make_install_prefix
+# We prefix all installed files for make_install_prefix(_slash)
# with '/tmp/krava' to match installed/prefix-ed files.
installed_files_all_prefix := $(addprefix /tmp/krava/,$(installed_files_all))
-test_make_install_prefix := $(call test_dest_files,$(installed_files_all_prefix))
-test_make_install_prefix_O := $(call test_dest_files,$(installed_files_all_prefix))
+test_make_install_prefix := $(call test_dest_files,$(installed_files_all_prefix))
+test_make_install_prefix_O := $(call test_dest_files,$(installed_files_all_prefix))
+
+test_make_install_prefix_slash := $(test_make_install_prefix)
+test_make_install_prefix_slash_O := $(test_make_install_prefix_O)
# FIXME nothing gets installed
test_make_install_man := test -f $$TMP_DEST/share/man/man1/perf.1
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index d76963f7ad3d..9b6b2b6324a1 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -82,8 +82,12 @@ static int test__checkevent_symbolic_name_config(struct perf_evlist *evlist)
TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->attr.type);
TEST_ASSERT_VAL("wrong config",
PERF_COUNT_HW_CPU_CYCLES == evsel->attr.config);
+ /*
+ * The period value gets configured within perf_evlist__config,
+ * while this test executes only parse events method.
+ */
TEST_ASSERT_VAL("wrong period",
- 100000 == evsel->attr.sample_period);
+ 0 == evsel->attr.sample_period);
TEST_ASSERT_VAL("wrong config1",
0 == evsel->attr.config1);
TEST_ASSERT_VAL("wrong config2",
@@ -406,7 +410,11 @@ static int test__checkevent_pmu(struct perf_evlist *evlist)
TEST_ASSERT_VAL("wrong config", 10 == evsel->attr.config);
TEST_ASSERT_VAL("wrong config1", 1 == evsel->attr.config1);
TEST_ASSERT_VAL("wrong config2", 3 == evsel->attr.config2);
- TEST_ASSERT_VAL("wrong period", 1000 == evsel->attr.sample_period);
+ /*
+ * The period value gets configured within perf_evlist__config,
+ * while this test executes only parse events method.
+ */
+ TEST_ASSERT_VAL("wrong period", 0 == evsel->attr.sample_period);
return 0;
}
@@ -471,6 +479,39 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist)
return 0;
}
+static int test__checkevent_pmu_partial_time_callgraph(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel = perf_evlist__first(evlist);
+
+ /* cpu/config=1,call-graph=fp,time,period=100000/ */
+ TEST_ASSERT_VAL("wrong number of entries", 2 == evlist->nr_entries);
+ TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
+ TEST_ASSERT_VAL("wrong config", 1 == evsel->attr.config);
+ /*
+ * The period, time and callgraph value gets configured
+ * within perf_evlist__config,
+ * while this test executes only parse events method.
+ */
+ TEST_ASSERT_VAL("wrong period", 0 == evsel->attr.sample_period);
+ TEST_ASSERT_VAL("wrong callgraph", !(PERF_SAMPLE_CALLCHAIN & evsel->attr.sample_type));
+ TEST_ASSERT_VAL("wrong time", !(PERF_SAMPLE_TIME & evsel->attr.sample_type));
+
+ /* cpu/config=2,call-graph=no,time=0,period=2000/ */
+ evsel = perf_evsel__next(evsel);
+ TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
+ TEST_ASSERT_VAL("wrong config", 2 == evsel->attr.config);
+ /*
+ * The period, time and callgraph value gets configured
+ * within perf_evlist__config,
+ * while this test executes only parse events method.
+ */
+ TEST_ASSERT_VAL("wrong period", 0 == evsel->attr.sample_period);
+ TEST_ASSERT_VAL("wrong callgraph", !(PERF_SAMPLE_CALLCHAIN & evsel->attr.sample_type));
+ TEST_ASSERT_VAL("wrong time", !(PERF_SAMPLE_TIME & evsel->attr.sample_type));
+
+ return 0;
+}
+
static int test__checkevent_pmu_events(struct perf_evlist *evlist)
{
struct perf_evsel *evsel = perf_evlist__first(evlist);
@@ -1547,6 +1588,11 @@ static struct evlist_test test__events_pmu[] = {
.check = test__checkevent_pmu_name,
.id = 1,
},
+ {
+ .name = "cpu/config=1,call-graph=fp,time,period=100000/,cpu/config=2,call-graph=no,time=0,period=2000/",
+ .check = test__checkevent_pmu_partial_time_callgraph,
+ .id = 2,
+ },
};
struct terms_test {
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index ebb47d96bc0b..bf113a247987 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -62,6 +62,7 @@ int test__fdarray__filter(void);
int test__fdarray__add(void);
int test__kmod_path__parse(void);
int test__thread_map(void);
+int test__llvm(void);
#if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__)
#ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index 5acf000939ea..138a0e3431fa 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -20,6 +20,8 @@ int test__thread_map(void)
TEST_ASSERT_VAL("wrong comm",
thread_map__comm(map, 0) &&
!strcmp(thread_map__comm(map, 0), "perf"));
+ TEST_ASSERT_VAL("wrong refcnt",
+ atomic_read(&map->refcnt) == 1);
thread_map__put(map);
/* test dummy pid */
@@ -33,6 +35,8 @@ int test__thread_map(void)
TEST_ASSERT_VAL("wrong comm",
thread_map__comm(map, 0) &&
!strcmp(thread_map__comm(map, 0), "dummy"));
+ TEST_ASSERT_VAL("wrong refcnt",
+ atomic_read(&map->refcnt) == 1);
thread_map__put(map);
return 0;
}
diff --git a/tools/perf/trace/strace/groups/file b/tools/perf/trace/strace/groups/file
new file mode 100644
index 000000000000..62378a899d79
--- /dev/null
+++ b/tools/perf/trace/strace/groups/file
@@ -0,0 +1,18 @@
+access
+chmod
+creat
+execve
+faccessat
+getcwd
+lstat
+mkdir
+open
+openat
+quotactl
+readlink
+rename
+rmdir
+stat
+statfs
+symlink
+unlink
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index 6680fa5cb9dd..c6c7e5189214 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -46,6 +46,21 @@ void ui_browser__gotorc(struct ui_browser *browser, int y, int x)
SLsmg_gotorc(browser->y + y, browser->x + x);
}
+void ui_browser__write_nstring(struct ui_browser *browser __maybe_unused, const char *msg,
+ unsigned int width)
+{
+ slsmg_write_nstring(msg, width);
+}
+
+void ui_browser__printf(struct ui_browser *browser __maybe_unused, const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ slsmg_vprintf(fmt, args);
+ va_end(args);
+}
+
static struct list_head *
ui_browser__list_head_filter_entries(struct ui_browser *browser,
struct list_head *pos)
@@ -234,7 +249,7 @@ void __ui_browser__show_title(struct ui_browser *browser, const char *title)
{
SLsmg_gotorc(0, 0);
ui_browser__set_color(browser, HE_COLORSET_ROOT);
- slsmg_write_nstring(title, browser->width + 1);
+ ui_browser__write_nstring(browser, title, browser->width + 1);
}
void ui_browser__show_title(struct ui_browser *browser, const char *title)
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index 92ae72113965..f3cef564de02 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -37,6 +37,9 @@ void ui_browser__refresh_dimensions(struct ui_browser *browser);
void ui_browser__reset_index(struct ui_browser *browser);
void ui_browser__gotorc(struct ui_browser *browser, int y, int x);
+void ui_browser__write_nstring(struct ui_browser *browser, const char *msg,
+ unsigned int width);
+void ui_browser__printf(struct ui_browser *browser, const char *fmt, ...);
void ui_browser__write_graph(struct ui_browser *browser, int graph);
void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
u64 start, u64 end);
@@ -58,8 +61,8 @@ int ui_browser__help_window(struct ui_browser *browser, const char *text);
bool ui_browser__dialog_yesno(struct ui_browser *browser, const char *text);
int ui_browser__input_window(const char *title, const char *text, char *input,
const char *exit_msg, int delay_sec);
-struct perf_session_env;
-int tui__header_window(struct perf_session_env *env);
+struct perf_env;
+int tui__header_window(struct perf_env *env);
void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);
unsigned int ui_browser__argv_refresh(struct ui_browser *browser);
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 5995a8bd7c69..29739b347599 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -1,7 +1,6 @@
#include "../../util/util.h"
#include "../browser.h"
#include "../helpline.h"
-#include "../libslang.h"
#include "../ui.h"
#include "../util.h"
#include "../../util/annotate.h"
@@ -16,6 +15,9 @@ struct disasm_line_samples {
u64 nr;
};
+#define IPC_WIDTH 6
+#define CYCLES_WIDTH 6
+
struct browser_disasm_line {
struct rb_node rb_node;
u32 idx;
@@ -53,6 +55,7 @@ struct annotate_browser {
int max_jump_sources;
int nr_jumps;
bool searching_backwards;
+ bool have_cycles;
u8 addr_width;
u8 jumps_width;
u8 target_width;
@@ -96,6 +99,15 @@ static int annotate_browser__set_jumps_percent_color(struct annotate_browser *br
return ui_browser__set_color(&browser->b, color);
}
+static int annotate_browser__pcnt_width(struct annotate_browser *ab)
+{
+ int w = 7 * ab->nr_events;
+
+ if (ab->have_cycles)
+ w += IPC_WIDTH + CYCLES_WIDTH;
+ return w;
+}
+
static void annotate_browser__write(struct ui_browser *browser, void *entry, int row)
{
struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
@@ -106,7 +118,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
(!current_entry || (browser->use_navkeypressed &&
!browser->navkeypressed)));
int width = browser->width, printed;
- int i, pcnt_width = 7 * ab->nr_events;
+ int i, pcnt_width = annotate_browser__pcnt_width(ab);
double percent_max = 0.0;
char bf[256];
@@ -116,19 +128,36 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
}
if (dl->offset != -1 && percent_max != 0.0) {
- for (i = 0; i < ab->nr_events; i++) {
- ui_browser__set_percent_color(browser,
- bdl->samples[i].percent,
- current_entry);
- if (annotate_browser__opts.show_total_period)
- slsmg_printf("%6" PRIu64 " ",
- bdl->samples[i].nr);
- else
- slsmg_printf("%6.2f ", bdl->samples[i].percent);
+ if (percent_max != 0.0) {
+ for (i = 0; i < ab->nr_events; i++) {
+ ui_browser__set_percent_color(browser,
+ bdl->samples[i].percent,
+ current_entry);
+ if (annotate_browser__opts.show_total_period) {
+ ui_browser__printf(browser, "%6" PRIu64 " ",
+ bdl->samples[i].nr);
+ } else {
+ ui_browser__printf(browser, "%6.2f ",
+ bdl->samples[i].percent);
+ }
+ }
+ } else {
+ ui_browser__write_nstring(browser, " ", 7 * ab->nr_events);
}
} else {
ui_browser__set_percent_color(browser, 0, current_entry);
- slsmg_write_nstring(" ", pcnt_width);
+ ui_browser__write_nstring(browser, " ", 7 * ab->nr_events);
+ }
+ if (ab->have_cycles) {
+ if (dl->ipc)
+ ui_browser__printf(browser, "%*.2f ", IPC_WIDTH - 1, dl->ipc);
+ else
+ ui_browser__write_nstring(browser, " ", IPC_WIDTH);
+ if (dl->cycles)
+ ui_browser__printf(browser, "%*" PRIu64 " ",
+ CYCLES_WIDTH - 1, dl->cycles);
+ else
+ ui_browser__write_nstring(browser, " ", CYCLES_WIDTH);
}
SLsmg_write_char(' ');
@@ -138,7 +167,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
width += 1;
if (!*dl->line)
- slsmg_write_nstring(" ", width - pcnt_width);
+ ui_browser__write_nstring(browser, " ", width - pcnt_width);
else if (dl->offset == -1) {
if (dl->line_nr && annotate_browser__opts.show_linenr)
printed = scnprintf(bf, sizeof(bf), "%-*d ",
@@ -146,8 +175,8 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
else
printed = scnprintf(bf, sizeof(bf), "%*s ",
ab->addr_width, " ");
- slsmg_write_nstring(bf, printed);
- slsmg_write_nstring(dl->line, width - printed - pcnt_width + 1);
+ ui_browser__write_nstring(browser, bf, printed);
+ ui_browser__write_nstring(browser, dl->line, width - printed - pcnt_width + 1);
} else {
u64 addr = dl->offset;
int color = -1;
@@ -166,7 +195,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
bdl->jump_sources);
prev = annotate_browser__set_jumps_percent_color(ab, bdl->jump_sources,
current_entry);
- slsmg_write_nstring(bf, printed);
+ ui_browser__write_nstring(browser, bf, printed);
ui_browser__set_color(browser, prev);
}
@@ -180,7 +209,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
if (change_color)
color = ui_browser__set_color(browser, HE_COLORSET_ADDR);
- slsmg_write_nstring(bf, printed);
+ ui_browser__write_nstring(browser, bf, printed);
if (change_color)
ui_browser__set_color(browser, color);
if (dl->ins && dl->ins->ops->scnprintf) {
@@ -194,11 +223,11 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
ui_browser__write_graph(browser, SLSMG_RARROW_CHAR);
SLsmg_write_char(' ');
} else {
- slsmg_write_nstring(" ", 2);
+ ui_browser__write_nstring(browser, " ", 2);
}
} else {
if (strcmp(dl->name, "retq")) {
- slsmg_write_nstring(" ", 2);
+ ui_browser__write_nstring(browser, " ", 2);
} else {
ui_browser__write_graph(browser, SLSMG_LARROW_CHAR);
SLsmg_write_char(' ');
@@ -206,7 +235,7 @@ static void annotate_browser__write(struct ui_browser *browser, void *entry, int
}
disasm_line__scnprintf(dl, bf, sizeof(bf), !annotate_browser__opts.use_offset);
- slsmg_write_nstring(bf, width - pcnt_width - 3 - printed);
+ ui_browser__write_nstring(browser, bf, width - pcnt_width - 3 - printed);
}
if (current_entry)
@@ -231,7 +260,7 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
unsigned int from, to;
struct map_symbol *ms = ab->b.priv;
struct symbol *sym = ms->sym;
- u8 pcnt_width = 7;
+ u8 pcnt_width = annotate_browser__pcnt_width(ab);
/* PLT symbols contain external offsets */
if (strstr(sym->name, "@plt"))
@@ -255,8 +284,6 @@ static void annotate_browser__draw_current_jump(struct ui_browser *browser)
to = (u64)btarget->idx;
}
- pcnt_width *= ab->nr_events;
-
ui_browser__set_color(browser, HE_COLORSET_CODE);
__ui_browser__line_arrow(browser, pcnt_width + 2 + ab->addr_width,
from, to);
@@ -266,9 +293,7 @@ static unsigned int annotate_browser__refresh(struct ui_browser *browser)
{
struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
int ret = ui_browser__list_head_refresh(browser);
- int pcnt_width;
-
- pcnt_width = 7 * ab->nr_events;
+ int pcnt_width = annotate_browser__pcnt_width(ab);
if (annotate_browser__opts.jump_arrows)
annotate_browser__draw_current_jump(browser);
@@ -390,7 +415,7 @@ static void annotate_browser__calc_percent(struct annotate_browser *browser,
max_percent = bpos->samples[i].percent;
}
- if (max_percent < 0.01) {
+ if (max_percent < 0.01 && pos->ipc == 0) {
RB_CLEAR_NODE(&bpos->rb_node);
continue;
}
@@ -869,6 +894,75 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
return map_symbol__tui_annotate(&he->ms, evsel, hbt);
}
+
+static unsigned count_insn(struct annotate_browser *browser, u64 start, u64 end)
+{
+ unsigned n_insn = 0;
+ u64 offset;
+
+ for (offset = start; offset <= end; offset++) {
+ if (browser->offsets[offset])
+ n_insn++;
+ }
+ return n_insn;
+}
+
+static void count_and_fill(struct annotate_browser *browser, u64 start, u64 end,
+ struct cyc_hist *ch)
+{
+ unsigned n_insn;
+ u64 offset;
+
+ n_insn = count_insn(browser, start, end);
+ if (n_insn && ch->num && ch->cycles) {
+ float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
+
+ /* Hide data when there are too many overlaps. */
+ if (ch->reset >= 0x7fff || ch->reset >= ch->num / 2)
+ return;
+
+ for (offset = start; offset <= end; offset++) {
+ struct disasm_line *dl = browser->offsets[offset];
+
+ if (dl)
+ dl->ipc = ipc;
+ }
+ }
+}
+
+/*
+ * This should probably be in util/annotate.c to share with the tty
+ * annotate, but right now we need the per byte offsets arrays,
+ * which are only here.
+ */
+static void annotate__compute_ipc(struct annotate_browser *browser, size_t size,
+ struct symbol *sym)
+{
+ u64 offset;
+ struct annotation *notes = symbol__annotation(sym);
+
+ if (!notes->src || !notes->src->cycles_hist)
+ return;
+
+ pthread_mutex_lock(&notes->lock);
+ for (offset = 0; offset < size; ++offset) {
+ struct cyc_hist *ch;
+
+ ch = &notes->src->cycles_hist[offset];
+ if (ch && ch->cycles) {
+ struct disasm_line *dl;
+
+ if (ch->have_start)
+ count_and_fill(browser, ch->start, offset, ch);
+ dl = browser->offsets[offset];
+ if (dl && ch->num_aggr)
+ dl->cycles = ch->cycles_aggr / ch->num_aggr;
+ browser->have_cycles = true;
+ }
+ }
+ pthread_mutex_unlock(&notes->lock);
+}
+
static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
size_t size)
{
@@ -991,6 +1085,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map,
}
annotate_browser__mark_jump_targets(&browser, size);
+ annotate__compute_ipc(&browser, size, sym);
browser.addr_width = browser.target_width = browser.min_addr_width = hex_width(size);
browser.max_addr_width = hex_width(sym->end);
diff --git a/tools/perf/ui/browsers/header.c b/tools/perf/ui/browsers/header.c
index e8278c558d4a..edbeaaf31ace 100644
--- a/tools/perf/ui/browsers/header.c
+++ b/tools/perf/ui/browsers/header.c
@@ -25,7 +25,7 @@ static void ui_browser__argv_write(struct ui_browser *browser,
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
HE_COLORSET_NORMAL);
- slsmg_write_nstring(str, browser->width);
+ ui_browser__write_nstring(browser, str, browser->width);
}
static int list_menu__run(struct ui_browser *menu)
@@ -91,7 +91,7 @@ static int ui__list_menu(int argc, char * const argv[])
return list_menu__run(&menu);
}
-int tui__header_window(struct perf_session_env *env)
+int tui__header_window(struct perf_env *env)
{
int i, argc = 0;
char **argv;
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index fa67613976a8..cf86f2d3a5e7 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1,5 +1,4 @@
#include <stdio.h>
-#include "../libslang.h"
#include <stdlib.h>
#include <string.h>
#include <linux/rbtree.h>
@@ -27,7 +26,7 @@ struct hist_browser {
struct map_symbol *selection;
struct hist_browser_timer *hbt;
struct pstack *pstack;
- struct perf_session_env *env;
+ struct perf_env *env;
int print_seq;
bool show_dso;
bool show_headers;
@@ -540,10 +539,10 @@ static void hist_browser__show_callchain_entry(struct hist_browser *browser,
ui_browser__set_color(&browser->b, color);
hist_browser__gotorc(browser, row, 0);
- slsmg_write_nstring(" ", offset);
- slsmg_printf("%c", folded_sign);
+ ui_browser__write_nstring(&browser->b, " ", offset);
+ ui_browser__printf(&browser->b, "%c", folded_sign);
ui_browser__write_graph(&browser->b, show_annotated ? SLSMG_RARROW_CHAR : ' ');
- slsmg_write_nstring(str, width);
+ ui_browser__write_nstring(&browser->b, str, width);
}
static void hist_browser__fprintf_callchain_entry(struct hist_browser *b __maybe_unused,
@@ -680,7 +679,7 @@ static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
ret = scnprintf(hpp->buf, hpp->size, fmt, len, percent);
- slsmg_printf("%s", hpp->buf);
+ ui_browser__printf(arg->b, "%s", hpp->buf);
advance_hpp(hpp, ret);
return ret;
@@ -713,10 +712,11 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
struct hist_entry *he) \
{ \
if (!symbol_conf.cumulate_callchain) { \
+ struct hpp_arg *arg = hpp->ptr; \
int len = fmt->user_len ?: fmt->len; \
int ret = scnprintf(hpp->buf, hpp->size, \
"%*s", len, "N/A"); \
- slsmg_printf("%s", hpp->buf); \
+ ui_browser__printf(arg->b, "%s", hpp->buf); \
\
return ret; \
} \
@@ -801,12 +801,12 @@ static int hist_browser__show_entry(struct hist_browser *browser,
if (first) {
if (symbol_conf.use_callchain) {
- slsmg_printf("%c ", folded_sign);
+ ui_browser__printf(&browser->b, "%c ", folded_sign);
width -= 2;
}
first = false;
} else {
- slsmg_printf(" ");
+ ui_browser__printf(&browser->b, " ");
width -= 2;
}
@@ -814,7 +814,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
width -= fmt->color(fmt, &hpp, entry);
} else {
width -= fmt->entry(fmt, &hpp, entry);
- slsmg_printf("%s", s);
+ ui_browser__printf(&browser->b, "%s", s);
}
}
@@ -822,7 +822,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
if (!browser->b.navkeypressed)
width += 1;
- slsmg_write_nstring("", width);
+ ui_browser__write_nstring(&browser->b, "", width);
++row;
++printed;
@@ -899,7 +899,7 @@ static void hist_browser__show_headers(struct hist_browser *browser)
hists__scnprintf_headers(headers, sizeof(headers), browser->hists);
ui_browser__gotorc(&browser->b, 0, 0);
ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
- slsmg_write_nstring(headers, browser->b.width + 1);
+ ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
}
static void ui_browser__hists_init_top(struct ui_browser *browser)
@@ -1214,7 +1214,7 @@ static int hist_browser__dump(struct hist_browser *browser)
static struct hist_browser *hist_browser__new(struct hists *hists,
struct hist_browser_timer *hbt,
- struct perf_session_env *env)
+ struct perf_env *env)
{
struct hist_browser *browser = zalloc(sizeof(*browser));
@@ -1267,6 +1267,8 @@ static int hists__browser_title(struct hists *hists,
const char *ev_name = perf_evsel__name(evsel);
char buf[512];
size_t buflen = sizeof(buf);
+ char ref[30] = " show reference callgraph, ";
+ bool enable_ref = false;
if (symbol_conf.filter_relative) {
nr_samples = hists->stats.nr_non_filtered_samples;
@@ -1292,10 +1294,13 @@ static int hists__browser_title(struct hists *hists,
}
}
+ if (symbol_conf.show_ref_callgraph &&
+ strstr(ev_name, "call-graph=no"))
+ enable_ref = true;
nr_samples = convert_unit(nr_samples, &unit);
printed = scnprintf(bf, size,
- "Samples: %lu%c of event '%s', Event count (approx.): %" PRIu64,
- nr_samples, unit, ev_name, nr_events);
+ "Samples: %lu%c of event '%s',%sEvent count (approx.): %" PRIu64,
+ nr_samples, unit, ev_name, enable_ref ? ref : " ", nr_events);
if (hists->uid_filter_str)
@@ -1690,7 +1695,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
bool left_exits,
struct hist_browser_timer *hbt,
float min_pcnt,
- struct perf_session_env *env)
+ struct perf_env *env)
{
struct hists *hists = evsel__hists(evsel);
struct hist_browser *browser = hist_browser__new(hists, hbt, env);
@@ -1868,6 +1873,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
case K_RIGHT:
/* menu */
break;
+ case K_ESC:
case K_LEFT: {
const void *top;
@@ -1877,6 +1883,12 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
*/
if (left_exits)
goto out_free_stack;
+
+ if (key == K_ESC &&
+ ui_browser__dialog_yesno(&browser->b,
+ "Do you really want to exit?"))
+ goto out_free_stack;
+
continue;
}
top = pstack__peek(browser->pstack);
@@ -1892,12 +1904,6 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
do_zoom_thread(browser, actions);
continue;
}
- case K_ESC:
- if (!left_exits &&
- !ui_browser__dialog_yesno(&browser->b,
- "Do you really want to exit?"))
- continue;
- /* Fall thru */
case 'q':
case CTRL('c'):
goto out_free_stack;
@@ -2010,7 +2016,7 @@ struct perf_evsel_menu {
struct perf_evsel *selection;
bool lost_events, lost_events_warned;
float min_pcnt;
- struct perf_session_env *env;
+ struct perf_env *env;
};
static void perf_evsel_menu__write(struct ui_browser *browser,
@@ -2044,7 +2050,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
nr_events = convert_unit(nr_events, &unit);
printed = scnprintf(bf, sizeof(bf), "%lu%c%s%s", nr_events,
unit, unit == ' ' ? "" : " ", ev_name);
- slsmg_printf("%s", bf);
+ ui_browser__printf(browser, "%s", bf);
nr_events = hists->stats.nr_events[PERF_RECORD_LOST];
if (nr_events != 0) {
@@ -2057,7 +2063,7 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
warn = bf;
}
- slsmg_write_nstring(warn, browser->width - printed);
+ ui_browser__write_nstring(browser, warn, browser->width - printed);
if (current_entry)
menu->selection = evsel;
@@ -2120,15 +2126,11 @@ browse_hists:
else
pos = perf_evsel__prev(pos);
goto browse_hists;
- case K_ESC:
- if (!ui_browser__dialog_yesno(&menu->b,
- "Do you really want to exit?"))
- continue;
- /* Fall thru */
case K_SWITCH_INPUT_DATA:
case 'q':
case CTRL('c'):
goto out;
+ case K_ESC:
default:
continue;
}
@@ -2167,7 +2169,7 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
int nr_entries, const char *help,
struct hist_browser_timer *hbt,
float min_pcnt,
- struct perf_session_env *env)
+ struct perf_env *env)
{
struct perf_evsel *pos;
struct perf_evsel_menu menu = {
@@ -2200,7 +2202,7 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
struct hist_browser_timer *hbt,
float min_pcnt,
- struct perf_session_env *env)
+ struct perf_env *env)
{
int nr_entries = evlist->nr_entries;
diff --git a/tools/perf/ui/browsers/map.c b/tools/perf/ui/browsers/map.c
index b11639f33682..8c154c7d4669 100644
--- a/tools/perf/ui/browsers/map.c
+++ b/tools/perf/ui/browsers/map.c
@@ -1,4 +1,3 @@
-#include "../libslang.h"
#include <elf.h>
#include <inttypes.h>
#include <sys/ttydefaults.h>
@@ -26,13 +25,13 @@ static void map_browser__write(struct ui_browser *browser, void *nd, int row)
int width;
ui_browser__set_percent_color(browser, 0, current_entry);
- slsmg_printf("%*" PRIx64 " %*" PRIx64 " %c ",
- mb->addrlen, sym->start, mb->addrlen, sym->end,
- sym->binding == STB_GLOBAL ? 'g' :
- sym->binding == STB_LOCAL ? 'l' : 'w');
+ ui_browser__printf(browser, "%*" PRIx64 " %*" PRIx64 " %c ",
+ mb->addrlen, sym->start, mb->addrlen, sym->end,
+ sym->binding == STB_GLOBAL ? 'g' :
+ sym->binding == STB_LOCAL ? 'l' : 'w');
width = browser->width - ((mb->addrlen * 2) + 4);
if (width > 0)
- slsmg_write_nstring(sym->name, width);
+ ui_browser__write_nstring(browser, sym->name, width);
}
/* FIXME uber-kludgy, see comment on cmd_report... */
diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
index 402d2bd30b09..e13b48d705ef 100644
--- a/tools/perf/ui/browsers/scripts.c
+++ b/tools/perf/ui/browsers/scripts.c
@@ -81,7 +81,7 @@ static void script_browser__write(struct ui_browser *browser,
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
HE_COLORSET_NORMAL);
- slsmg_write_nstring(sline->line, browser->width);
+ ui_browser__write_nstring(browser, sline->line, browser->width);
}
static int script_browser__run(struct perf_script_browser *browser)
diff --git a/tools/perf/ui/libslang.h b/tools/perf/ui/libslang.h
index 4d54b6450f5b..db816695ad97 100644
--- a/tools/perf/ui/libslang.h
+++ b/tools/perf/ui/libslang.h
@@ -14,12 +14,15 @@
#if SLANG_VERSION < 20104
#define slsmg_printf(msg, args...) \
SLsmg_printf((char *)(msg), ##args)
+#define slsmg_vprintf(msg, vargs) \
+ SLsmg_vprintf((char *)(msg), vargs)
#define slsmg_write_nstring(msg, len) \
SLsmg_write_nstring((char *)(msg), len)
#define sltt_set_color(obj, name, fg, bg) \
SLtt_set_color(obj,(char *)(name), (char *)(fg), (char *)(bg))
#else
#define slsmg_printf SLsmg_printf
+#define slsmg_vprintf SLsmg_vprintf
#define slsmg_write_nstring SLsmg_write_nstring
#define sltt_set_color SLtt_set_color
#endif
diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index c61d14b101e0..c4b99008e2c9 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -33,9 +33,26 @@ static void tui_progress__update(struct ui_progress *p)
pthread_mutex_unlock(&ui__lock);
}
+static void tui_progress__finish(void)
+{
+ int y;
+
+ if (use_browser <= 0)
+ return;
+
+ ui__refresh_dimensions(false);
+ pthread_mutex_lock(&ui__lock);
+ y = SLtt_Screen_Rows / 2 - 2;
+ SLsmg_set_color(0);
+ SLsmg_fill_region(y, 0, 3, SLtt_Screen_Cols, ' ');
+ SLsmg_refresh();
+ pthread_mutex_unlock(&ui__lock);
+}
+
static struct ui_progress_ops tui_progress__ops =
{
- .update = tui_progress__update,
+ .update = tui_progress__update,
+ .finish = tui_progress__finish,
};
void tui_progress__init(void)
diff --git a/tools/perf/ui/tui/util.c b/tools/perf/ui/tui/util.c
index bf890f72fe80..d96ad7c8325d 100644
--- a/tools/perf/ui/tui/util.c
+++ b/tools/perf/ui/tui/util.c
@@ -21,7 +21,7 @@ static void ui_browser__argv_write(struct ui_browser *browser,
ui_browser__set_color(browser, current_entry ? HE_COLORSET_SELECTED :
HE_COLORSET_NORMAL);
- slsmg_write_nstring(*arg, browser->width);
+ ui_browser__write_nstring(browser, *arg, browser->width);
}
static int popup_menu__run(struct ui_browser *menu)
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index d2d318c59b37..e912856cc4e5 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -14,6 +14,7 @@ libperf-y += find_next_bit.o
libperf-y += help.o
libperf-y += kallsyms.o
libperf-y += levenshtein.o
+libperf-y += llvm-utils.o
libperf-y += parse-options.o
libperf-y += parse-events.o
libperf-y += path.o
@@ -67,6 +68,7 @@ libperf-y += target.o
libperf-y += rblist.o
libperf-y += intlist.o
libperf-y += vdso.o
+libperf-y += counts.o
libperf-y += stat.o
libperf-y += stat-shadow.o
libperf-y += record.o
@@ -76,9 +78,13 @@ libperf-$(CONFIG_X86) += tsc.o
libperf-y += cloexec.o
libperf-y += thread-stack.o
libperf-$(CONFIG_AUXTRACE) += auxtrace.o
+libperf-$(CONFIG_AUXTRACE) += intel-pt-decoder/
+libperf-$(CONFIG_AUXTRACE) += intel-pt.o
+libperf-$(CONFIG_AUXTRACE) += intel-bts.o
libperf-y += parse-branch-options.o
libperf-$(CONFIG_LIBELF) += symbol-elf.o
+libperf-$(CONFIG_LIBELF) += probe-file.o
libperf-$(CONFIG_LIBELF) += probe-event.o
ifndef CONFIG_LIBELF
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 03b7bc70eb66..d1eece70b84d 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -473,17 +473,73 @@ int symbol__alloc_hist(struct symbol *sym)
return 0;
}
+/* The cycles histogram is lazily allocated. */
+static int symbol__alloc_hist_cycles(struct symbol *sym)
+{
+ struct annotation *notes = symbol__annotation(sym);
+ const size_t size = symbol__size(sym);
+
+ notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
+ if (notes->src->cycles_hist == NULL)
+ return -1;
+ return 0;
+}
+
void symbol__annotate_zero_histograms(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
pthread_mutex_lock(&notes->lock);
- if (notes->src != NULL)
+ if (notes->src != NULL) {
memset(notes->src->histograms, 0,
notes->src->nr_histograms * notes->src->sizeof_sym_hist);
+ if (notes->src->cycles_hist)
+ memset(notes->src->cycles_hist, 0,
+ symbol__size(sym) * sizeof(struct cyc_hist));
+ }
pthread_mutex_unlock(&notes->lock);
}
+static int __symbol__account_cycles(struct annotation *notes,
+ u64 start,
+ unsigned offset, unsigned cycles,
+ unsigned have_start)
+{
+ struct cyc_hist *ch;
+
+ ch = notes->src->cycles_hist;
+ /*
+ * For now we can only account one basic block per
+ * final jump. But multiple could be overlapping.
+ * Always account the longest one. So when
+ * a shorter one has been already seen throw it away.
+ *
+ * We separately always account the full cycles.
+ */
+ ch[offset].num_aggr++;
+ ch[offset].cycles_aggr += cycles;
+
+ if (!have_start && ch[offset].have_start)
+ return 0;
+ if (ch[offset].num) {
+ if (have_start && (!ch[offset].have_start ||
+ ch[offset].start > start)) {
+ ch[offset].have_start = 0;
+ ch[offset].cycles = 0;
+ ch[offset].num = 0;
+ if (ch[offset].reset < 0xffff)
+ ch[offset].reset++;
+ } else if (have_start &&
+ ch[offset].start < start)
+ return 0;
+ }
+ ch[offset].have_start = have_start;
+ ch[offset].start = start;
+ ch[offset].cycles += cycles;
+ ch[offset].num++;
+ return 0;
+}
+
static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
struct annotation *notes, int evidx, u64 addr)
{
@@ -506,7 +562,7 @@ static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
return 0;
}
-static struct annotation *symbol__get_annotation(struct symbol *sym)
+static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
{
struct annotation *notes = symbol__annotation(sym);
@@ -514,6 +570,10 @@ static struct annotation *symbol__get_annotation(struct symbol *sym)
if (symbol__alloc_hist(sym) < 0)
return NULL;
}
+ if (!notes->src->cycles_hist && cycles) {
+ if (symbol__alloc_hist_cycles(sym) < 0)
+ return NULL;
+ }
return notes;
}
@@ -524,12 +584,73 @@ static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
if (sym == NULL)
return 0;
- notes = symbol__get_annotation(sym);
+ notes = symbol__get_annotation(sym, false);
if (notes == NULL)
return -ENOMEM;
return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
}
+static int symbol__account_cycles(u64 addr, u64 start,
+ struct symbol *sym, unsigned cycles)
+{
+ struct annotation *notes;
+ unsigned offset;
+
+ if (sym == NULL)
+ return 0;
+ notes = symbol__get_annotation(sym, true);
+ if (notes == NULL)
+ return -ENOMEM;
+ if (addr < sym->start || addr >= sym->end)
+ return -ERANGE;
+
+ if (start) {
+ if (start < sym->start || start >= sym->end)
+ return -ERANGE;
+ if (start >= addr)
+ start = 0;
+ }
+ offset = addr - sym->start;
+ return __symbol__account_cycles(notes,
+ start ? start - sym->start : 0,
+ offset, cycles,
+ !!start);
+}
+
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+ struct addr_map_symbol *start,
+ unsigned cycles)
+{
+ u64 saddr = 0;
+ int err;
+
+ if (!cycles)
+ return 0;
+
+ /*
+ * Only set start when IPC can be computed. We can only
+ * compute it when the basic block is completely in a single
+ * function.
+ * Special case the case when the jump is elsewhere, but
+ * it starts on the function start.
+ */
+ if (start &&
+ (start->sym == ams->sym ||
+ (ams->sym &&
+ start->addr == ams->sym->start + ams->map->start)))
+ saddr = start->al_addr;
+ if (saddr == 0)
+ pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
+ ams->addr,
+ start ? start->addr : 0,
+ ams->sym ? ams->sym->start + ams->map->start : 0,
+ saddr);
+ err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
+ if (err)
+ pr_debug2("account_cycles failed %d\n", err);
+ return err;
+}
+
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
{
return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
@@ -1005,6 +1126,7 @@ fallback:
dso->annotate_warned = 1;
pr_err("Can't annotate %s:\n\n"
"No vmlinux file%s\nwas found in the path.\n\n"
+ "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
"Please use:\n\n"
" perf buildid-cache -vu vmlinux\n\n"
"or:\n\n"
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 7e78e6c27078..e9996092a093 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -59,6 +59,8 @@ struct disasm_line {
char *name;
struct ins *ins;
int line_nr;
+ float ipc;
+ u64 cycles;
struct ins_operands ops;
};
@@ -79,6 +81,17 @@ struct sym_hist {
u64 addr[0];
};
+struct cyc_hist {
+ u64 start;
+ u64 cycles;
+ u64 cycles_aggr;
+ u32 num;
+ u32 num_aggr;
+ u8 have_start;
+ /* 1 byte padding */
+ u16 reset;
+};
+
struct source_line_samples {
double percent;
double percent_sum;
@@ -97,6 +110,7 @@ struct source_line {
* @histogram: Array of addr hit histograms per event being monitored
* @lines: If 'print_lines' is specified, per source code line percentages
* @source: source parsed from a disassembler like objdump -dS
+ * @cyc_hist: Average cycles per basic block
*
* lines is allocated, percentages calculated and all sorted by percentage
* when the annotation is about to be presented, so the percentages are for
@@ -109,6 +123,7 @@ struct annotated_source {
struct source_line *lines;
int nr_histograms;
int sizeof_sym_hist;
+ struct cyc_hist *cycles_hist;
struct sym_hist histograms[0];
};
@@ -130,6 +145,10 @@ static inline struct annotation *symbol__annotation(struct symbol *sym)
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx);
+int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
+ struct addr_map_symbol *start,
+ unsigned cycles);
+
int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
int symbol__alloc_hist(struct symbol *sym);
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 83d9dd96fe08..a980e7c50ee0 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -47,6 +47,9 @@
#include "debug.h"
#include "parse-options.h"
+#include "intel-pt.h"
+#include "intel-bts.h"
+
int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
struct auxtrace_mmap_params *mp,
void *userpg, int fd)
@@ -876,7 +879,7 @@ static bool auxtrace__dont_decode(struct perf_session *session)
int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
union perf_event *event,
- struct perf_session *session __maybe_unused)
+ struct perf_session *session)
{
enum auxtrace_type type = event->auxtrace_info.type;
@@ -884,6 +887,10 @@ int perf_event__process_auxtrace_info(struct perf_tool *tool __maybe_unused,
fprintf(stdout, " type: %u\n", type);
switch (type) {
+ case PERF_AUXTRACE_INTEL_PT:
+ return intel_pt_process_auxtrace_info(event, session);
+ case PERF_AUXTRACE_INTEL_BTS:
+ return intel_bts_process_auxtrace_info(event, session);
case PERF_AUXTRACE_UNKNOWN:
default:
return -EINVAL;
@@ -942,6 +949,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
struct itrace_synth_opts *synth_opts = opt->value;
const char *p;
char *endptr;
+ bool period_type_set = false;
synth_opts->set = true;
@@ -970,10 +978,12 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
case 'i':
synth_opts->period_type =
PERF_ITRACE_PERIOD_INSTRUCTIONS;
+ period_type_set = true;
break;
case 't':
synth_opts->period_type =
PERF_ITRACE_PERIOD_TICKS;
+ period_type_set = true;
break;
case 'm':
synth_opts->period *= 1000;
@@ -986,6 +996,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
goto out_err;
synth_opts->period_type =
PERF_ITRACE_PERIOD_NANOSECS;
+ period_type_set = true;
break;
case '\0':
goto out;
@@ -1039,7 +1050,7 @@ int itrace_parse_synth_opts(const struct option *opt, const char *str,
}
out:
if (synth_opts->instructions) {
- if (!synth_opts->period_type)
+ if (!period_type_set)
synth_opts->period_type =
PERF_ITRACE_DEFAULT_PERIOD_TYPE;
if (!synth_opts->period)
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 471aecbc4d68..bf72b77a588a 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -39,6 +39,8 @@ struct events_stats;
enum auxtrace_type {
PERF_AUXTRACE_UNKNOWN,
+ PERF_AUXTRACE_INTEL_PT,
+ PERF_AUXTRACE_INTEL_BTS,
};
enum itrace_period_type {
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 1f6fc2323ef9..d909459fb54c 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -93,6 +93,38 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf)
return raw - build_id;
}
+int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id)
+{
+ char notes[PATH_MAX];
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ if (!root_dir)
+ root_dir = "";
+
+ scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
+
+ ret = sysfs__read_build_id(notes, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
+}
+
+int filename__sprintf_build_id(const char *pathname, char *sbuild_id)
+{
+ u8 build_id[BUILD_ID_SIZE];
+ int ret;
+
+ ret = filename__read_build_id(pathname, build_id, sizeof(build_id));
+ if (ret < 0)
+ return ret;
+ else if (ret != sizeof(build_id))
+ return -EINVAL;
+
+ return build_id__sprintf(build_id, sizeof(build_id), sbuild_id);
+}
+
/* asnprintf consolidates asprintf and snprintf */
static int asnprintf(char **strp, size_t size, const char *fmt, ...)
{
@@ -124,7 +156,7 @@ static char *build_id__filename(const char *sbuild_id, char *bf, size_t size)
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size)
{
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
+ char build_id_hex[SBUILD_ID_SIZE];
if (!dso->has_build_id)
return NULL;
@@ -291,7 +323,7 @@ int build_id_cache__list_build_ids(const char *pathname,
struct dirent *d;
int ret = 0;
- list = strlist__new(true, NULL);
+ list = strlist__new(NULL, NULL);
dir_name = build_id_cache__dirname_from_path(pathname, false, false);
if (!list || !dir_name) {
ret = -ENOMEM;
@@ -384,7 +416,7 @@ static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
const char *name, bool is_kallsyms,
bool is_vdso)
{
- char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+ char sbuild_id[SBUILD_ID_SIZE];
build_id__sprintf(build_id, build_id_size, sbuild_id);
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index 85011222cc14..27a14a8a945b 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -1,7 +1,8 @@
#ifndef PERF_BUILD_ID_H_
#define PERF_BUILD_ID_H_ 1
-#define BUILD_ID_SIZE 20
+#define BUILD_ID_SIZE 20
+#define SBUILD_ID_SIZE (BUILD_ID_SIZE * 2 + 1)
#include "tool.h"
#include "strlist.h"
@@ -11,6 +12,9 @@ extern struct perf_tool build_id__mark_dso_hit_ops;
struct dso;
int build_id__sprintf(const u8 *build_id, int len, char *bf);
+int sysfs__sprintf_build_id(const char *root_dir, char *sbuild_id);
+int filename__sprintf_build_id(const char *pathname, char *sbuild_id);
+
char *dso__build_id_filename(const struct dso *dso, char *bf, size_t size);
int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 9f643ee77001..773fe13ce627 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -25,96 +25,9 @@
__thread struct callchain_cursor callchain_cursor;
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
-static int get_stack_size(const char *str, unsigned long *_size)
-{
- char *endptr;
- unsigned long size;
- unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
-
- size = strtoul(str, &endptr, 0);
-
- do {
- if (*endptr)
- break;
-
- size = round_up(size, sizeof(u64));
- if (!size || size > max_size)
- break;
-
- *_size = size;
- return 0;
-
- } while (0);
-
- pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
- max_size, str);
- return -1;
-}
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
-
-int parse_callchain_record_opt(const char *arg)
+int parse_callchain_record_opt(const char *arg, struct callchain_param *param)
{
- char *tok, *name, *saveptr = NULL;
- char *buf;
- int ret = -1;
-
- /* We need buffer that we know we can write to. */
- buf = malloc(strlen(arg) + 1);
- if (!buf)
- return -ENOMEM;
-
- strcpy(buf, arg);
-
- tok = strtok_r((char *)buf, ",", &saveptr);
- name = tok ? : (char *)buf;
-
- do {
- /* Framepointer style */
- if (!strncmp(name, "fp", sizeof("fp"))) {
- if (!strtok_r(NULL, ",", &saveptr)) {
- callchain_param.record_mode = CALLCHAIN_FP;
- ret = 0;
- } else
- pr_err("callchain: No more arguments "
- "needed for --call-graph fp\n");
- break;
-
-#ifdef HAVE_DWARF_UNWIND_SUPPORT
- /* Dwarf style */
- } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
- const unsigned long default_stack_dump_size = 8192;
-
- ret = 0;
- callchain_param.record_mode = CALLCHAIN_DWARF;
- callchain_param.dump_size = default_stack_dump_size;
-
- tok = strtok_r(NULL, ",", &saveptr);
- if (tok) {
- unsigned long size = 0;
-
- ret = get_stack_size(tok, &size);
- callchain_param.dump_size = size;
- }
-#endif /* HAVE_DWARF_UNWIND_SUPPORT */
- } else if (!strncmp(name, "lbr", sizeof("lbr"))) {
- if (!strtok_r(NULL, ",", &saveptr)) {
- callchain_param.record_mode = CALLCHAIN_LBR;
- ret = 0;
- } else
- pr_err("callchain: No more arguments "
- "needed for --call-graph lbr\n");
- break;
- } else {
- pr_err("callchain: Unknown --call-graph option "
- "value: %s\n", arg);
- break;
- }
-
- } while (0);
-
- free(buf);
- return ret;
+ return parse_callchain_record(arg, param);
}
static int parse_callchain_mode(const char *value)
@@ -219,7 +132,7 @@ int perf_callchain_config(const char *var, const char *value)
var += sizeof("call-graph.") - 1;
if (!strcmp(var, "record-mode"))
- return parse_callchain_record_opt(value);
+ return parse_callchain_record_opt(value, &callchain_param);
#ifdef HAVE_DWARF_UNWIND_SUPPORT
if (!strcmp(var, "dump-size")) {
unsigned long size = 0;
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 679c2c6d8ade..acee2b3cd801 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -177,7 +177,8 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
bool hide_unresolved);
extern const char record_callchain_help[];
-int parse_callchain_record_opt(const char *arg);
+extern int parse_callchain_record(const char *arg, struct callchain_param *param);
+int parse_callchain_record_opt(const char *arg, struct callchain_param *param);
int parse_callchain_report_opt(const char *arg);
int perf_callchain_config(const char *var, const char *value);
diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h
index 68888c29b04a..3bee6773ddb0 100644
--- a/tools/perf/util/cloexec.h
+++ b/tools/perf/util/cloexec.h
@@ -4,7 +4,7 @@
unsigned long perf_event_open_cloexec_flag(void);
#ifdef __GLIBC_PREREQ
-#if !__GLIBC_PREREQ(2, 6)
+#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__)
extern int sched_getcpu(void) __THROW;
#endif
#endif
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 55355b3d4f85..9b9565416f90 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -67,8 +67,9 @@ static int __color_vsnprintf(char *bf, size_t size, const char *color,
return r;
}
+/* Colors are not included in return value */
static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
- va_list args, const char *trail)
+ va_list args)
{
int r = 0;
@@ -83,12 +84,10 @@ static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
}
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", color);
+ fprintf(fp, "%s", color);
r += vfprintf(fp, fmt, args);
if (perf_use_color_default && *color)
- r += fprintf(fp, "%s", PERF_COLOR_RESET);
- if (trail)
- r += fprintf(fp, "%s", trail);
+ fprintf(fp, "%s", PERF_COLOR_RESET);
return r;
}
@@ -100,7 +99,7 @@ int color_vsnprintf(char *bf, size_t size, const char *color,
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args)
{
- return __color_vfprintf(fp, color, fmt, args, NULL);
+ return __color_vfprintf(fp, color, fmt, args);
}
int color_snprintf(char *bf, size_t size, const char *color,
@@ -126,16 +125,6 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
return r;
}
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...)
-{
- va_list args;
- int r;
- va_start(args, fmt);
- r = __color_vfprintf(fp, color, fmt, args, "\n");
- va_end(args);
- return r;
-}
-
/*
* This function splits the buffer by newlines and colors the lines individually.
*
diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
index 38146f922c54..a93997f16dec 100644
--- a/tools/perf/util/color.h
+++ b/tools/perf/util/color.h
@@ -35,7 +35,6 @@ int color_vsnprintf(char *bf, size_t size, const char *color,
int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args);
int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);
-int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
int value_color_snprintf(char *bf, size_t size, const char *fmt, double value);
int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index e18f653cd7db..2e452ac1353d 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -12,6 +12,7 @@
#include "cache.h"
#include "exec_cmd.h"
#include "util/hist.h" /* perf_hist_config */
+#include "util/llvm-utils.h" /* perf_llvm_config */
#define MAXNAME (256)
@@ -408,6 +409,9 @@ int perf_default_config(const char *var, const char *value,
if (!prefixcmp(var, "call-graph."))
return perf_callchain_config(var, value);
+ if (!prefixcmp(var, "llvm."))
+ return perf_llvm_config(var, value);
+
/* Add other config variables here. */
return 0;
}
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
new file mode 100644
index 000000000000..e3fde313deb2
--- /dev/null
+++ b/tools/perf/util/counts.c
@@ -0,0 +1,52 @@
+#include <stdlib.h>
+#include "evsel.h"
+#include "counts.h"
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads)
+{
+ struct perf_counts *counts = zalloc(sizeof(*counts));
+
+ if (counts) {
+ struct xyarray *values;
+
+ values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
+ if (!values) {
+ free(counts);
+ return NULL;
+ }
+
+ counts->values = values;
+ }
+
+ return counts;
+}
+
+void perf_counts__delete(struct perf_counts *counts)
+{
+ if (counts) {
+ xyarray__delete(counts->values);
+ free(counts);
+ }
+}
+
+static void perf_counts__reset(struct perf_counts *counts)
+{
+ xyarray__reset(counts->values);
+}
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel)
+{
+ perf_counts__reset(evsel->counts);
+}
+
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
+{
+ evsel->counts = perf_counts__new(ncpus, nthreads);
+ return evsel->counts != NULL ? 0 : -ENOMEM;
+}
+
+void perf_evsel__free_counts(struct perf_evsel *evsel)
+{
+ perf_counts__delete(evsel->counts);
+ evsel->counts = NULL;
+}
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
new file mode 100644
index 000000000000..34d8baaf558a
--- /dev/null
+++ b/tools/perf/util/counts.h
@@ -0,0 +1,37 @@
+#ifndef __PERF_COUNTS_H
+#define __PERF_COUNTS_H
+
+#include "xyarray.h"
+
+struct perf_counts_values {
+ union {
+ struct {
+ u64 val;
+ u64 ena;
+ u64 run;
+ };
+ u64 values[3];
+ };
+};
+
+struct perf_counts {
+ s8 scaled;
+ struct perf_counts_values aggr;
+ struct xyarray *values;
+};
+
+
+static inline struct perf_counts_values*
+perf_counts(struct perf_counts *counts, int cpu, int thread)
+{
+ return xyarray__entry(counts->values, cpu, thread);
+}
+
+struct perf_counts *perf_counts__new(int ncpus, int nthreads);
+void perf_counts__delete(struct perf_counts *counts);
+
+void perf_evsel__reset_counts(struct perf_evsel *evsel);
+int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
+void perf_evsel__free_counts(struct perf_evsel *evsel);
+
+#endif /* __PERF_COUNTS_H */
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index 2da5581ec74d..86d9c7302598 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -36,6 +36,11 @@ static int _eprintf(int level, int var, const char *fmt, va_list args)
return ret;
}
+int veprintf(int level, int var, const char *fmt, va_list args)
+{
+ return _eprintf(level, var, fmt, args);
+}
+
int eprintf(int level, int var, const char *fmt, ...)
{
va_list args;
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index caac2fdc6105..8b9a088c32ab 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -50,6 +50,7 @@ void pr_stat(const char *fmt, ...);
int eprintf(int level, int var, const char *fmt, ...) __attribute__((format(printf, 3, 4)));
int eprintf_time(int level, int var, u64 t, const char *fmt, ...) __attribute__((format(printf, 4, 5)));
+int veprintf(int level, int var, const char *fmt, va_list args);
int perf_debug_option(const char *str);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 2fe98bb0e95b..fc8db9c764ac 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -137,6 +137,10 @@ struct dso {
struct rb_node rb_node; /* rbtree node sorted by long name */
struct rb_root symbols[MAP__NR_TYPES];
struct rb_root symbol_names[MAP__NR_TYPES];
+ struct {
+ u64 addr;
+ struct symbol *symbol;
+ } last_find_result[MAP__NR_TYPES];
void *a2l;
char *symsrc_filename;
unsigned int a2l_fails;
@@ -320,6 +324,8 @@ struct dso *__dsos__findnew(struct dsos *dsos, const char *name);
struct dso *dsos__findnew(struct dsos *dsos, const char *name);
bool __dsos__read_build_ids(struct list_head *head, bool with_hits);
+void dso__reset_find_symbol_cache(struct dso *dso);
+
size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
bool (skip)(struct dso *dso, int parm), int parm);
size_t __dsos__fprintf(struct list_head *head, FILE *fp);
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index 57f3ef41c2bc..a509aa8433a1 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -734,15 +734,18 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
Dwarf_Lines *lines;
Dwarf_Line *line;
Dwarf_Addr addr;
- const char *fname;
+ const char *fname, *decf = NULL;
int lineno, ret = 0;
+ int decl = 0, inl;
Dwarf_Die die_mem, *cu_die;
size_t nlines, i;
/* Get the CU die */
- if (dwarf_tag(rt_die) != DW_TAG_compile_unit)
+ if (dwarf_tag(rt_die) != DW_TAG_compile_unit) {
cu_die = dwarf_diecu(rt_die, &die_mem, NULL, NULL);
- else
+ dwarf_decl_line(rt_die, &decl);
+ decf = dwarf_decl_file(rt_die);
+ } else
cu_die = rt_die;
if (!cu_die) {
pr_debug2("Failed to get CU from given DIE.\n");
@@ -767,15 +770,21 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
continue;
}
/* Filter lines based on address */
- if (rt_die != cu_die)
+ if (rt_die != cu_die) {
/*
* Address filtering
* The line is included in given function, and
* no inline block includes it.
*/
- if (!dwarf_haspc(rt_die, addr) ||
- die_find_inlinefunc(rt_die, addr, &die_mem))
+ if (!dwarf_haspc(rt_die, addr))
continue;
+ if (die_find_inlinefunc(rt_die, addr, &die_mem)) {
+ dwarf_decl_line(&die_mem, &inl);
+ if (inl != decl ||
+ decf != dwarf_decl_file(&die_mem))
+ continue;
+ }
+ }
/* Get source line */
fname = dwarf_linesrc(line, NULL, NULL);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 67a977e5d0ab..7ff61274ed57 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -26,6 +26,8 @@ static const char *perf_event__names[] = {
[PERF_RECORD_AUX] = "AUX",
[PERF_RECORD_ITRACE_START] = "ITRACE_START",
[PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
+ [PERF_RECORD_SWITCH] = "SWITCH",
+ [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
[PERF_RECORD_HEADER_ATTR] = "ATTR",
[PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
[PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
@@ -749,6 +751,14 @@ int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
return machine__process_lost_samples_event(machine, event, sample);
}
+int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_switch_event(machine, event);
+}
+
size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
{
return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n",
@@ -827,6 +837,20 @@ size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
event->itrace_start.pid, event->itrace_start.tid);
}
+size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
+{
+ bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
+ const char *in_out = out ? "OUT" : "IN ";
+
+ if (event->header.type == PERF_RECORD_SWITCH)
+ return fprintf(fp, " %s\n", in_out);
+
+ return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n",
+ in_out, out ? "next" : "prev",
+ event->context_switch.next_prev_pid,
+ event->context_switch.next_prev_tid);
+}
+
size_t perf_event__fprintf(union perf_event *event, FILE *fp)
{
size_t ret = fprintf(fp, "PERF_RECORD_%s",
@@ -852,6 +876,10 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp)
case PERF_RECORD_ITRACE_START:
ret += perf_event__fprintf_itrace_start(event, fp);
break;
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ ret += perf_event__fprintf_switch(event, fp);
+ break;
default:
ret += fprintf(fp, "\n");
}
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index c53f36384b64..f729df5e25e6 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -134,7 +134,8 @@ struct branch_flags {
u64 predicted:1;
u64 in_tx:1;
u64 abort:1;
- u64 reserved:60;
+ u64 cycles:16;
+ u64 reserved:44;
};
struct branch_entry {
@@ -348,6 +349,12 @@ struct itrace_start_event {
u32 pid, tid;
};
+struct context_switch_event {
+ struct perf_event_header header;
+ u32 next_prev_pid;
+ u32 next_prev_tid;
+};
+
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@@ -369,6 +376,7 @@ union perf_event {
struct auxtrace_error_event auxtrace_error;
struct aux_event aux;
struct itrace_start_event itrace_start;
+ struct context_switch_event context_switch;
};
void perf_event__print_totals(void);
@@ -418,6 +426,10 @@ int perf_event__process_itrace_start(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine);
+int perf_event__process_switch(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
int perf_event__process_mmap(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@@ -480,6 +492,7 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
+size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
size_t perf_event__fprintf(union perf_event *event, FILE *fp);
u64 kallsyms__get_function_start(const char *kallsyms_filename,
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6cfdee68e763..8d00039d6a20 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -98,6 +98,7 @@ static void perf_evlist__purge(struct perf_evlist *evlist)
evlist__for_each_safe(evlist, n, pos) {
list_del_init(&pos->node);
+ pos->evlist = NULL;
perf_evsel__delete(pos);
}
@@ -125,6 +126,7 @@ void perf_evlist__delete(struct perf_evlist *evlist)
void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
{
+ entry->evlist = evlist;
list_add_tail(&entry->node, &evlist->entries);
entry->idx = evlist->nr_entries;
entry->tracking = !entry->idx;
@@ -573,7 +575,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id)
{
struct perf_sample_id *sid;
- if (evlist->nr_entries == 1)
+ if (evlist->nr_entries == 1 || !id)
return perf_evlist__first(evlist);
sid = perf_evlist__id2sid(evlist, id);
@@ -1102,7 +1104,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
}
static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
- struct target *target)
+ bool has_user_cpus)
{
struct perf_evsel *evsel;
@@ -1111,15 +1113,16 @@ static int perf_evlist__propagate_maps(struct perf_evlist *evlist,
* We already have cpus for evsel (via PMU sysfs) so
* keep it, if there's no target cpu list defined.
*/
- if (evsel->cpus && target->cpu_list)
+ if (evsel->cpus && has_user_cpus)
cpu_map__put(evsel->cpus);
- if (!evsel->cpus || target->cpu_list)
+ if (!evsel->cpus || has_user_cpus)
evsel->cpus = cpu_map__get(evlist->cpus);
evsel->threads = thread_map__get(evlist->threads);
- if (!evsel->cpus || !evsel->threads)
+ if ((evlist->cpus && !evsel->cpus) ||
+ (evlist->threads && !evsel->threads))
return -ENOMEM;
}
@@ -1142,7 +1145,7 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
if (evlist->cpus == NULL)
goto out_delete_threads;
- return perf_evlist__propagate_maps(evlist, target);
+ return perf_evlist__propagate_maps(evlist, !!target->cpu_list);
out_delete_threads:
thread_map__put(evlist->threads);
@@ -1150,6 +1153,23 @@ out_delete_threads:
return -1;
}
+int perf_evlist__set_maps(struct perf_evlist *evlist,
+ struct cpu_map *cpus,
+ struct thread_map *threads)
+{
+ if (evlist->cpus)
+ cpu_map__put(evlist->cpus);
+
+ evlist->cpus = cpus;
+
+ if (evlist->threads)
+ thread_map__put(evlist->threads);
+
+ evlist->threads = threads;
+
+ return perf_evlist__propagate_maps(evlist, false);
+}
+
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel)
{
struct perf_evsel *evsel;
@@ -1161,7 +1181,7 @@ int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **e
if (evsel->filter == NULL)
continue;
- err = perf_evsel__set_filter(evsel, ncpus, nthreads, evsel->filter);
+ err = perf_evsel__apply_filter(evsel, ncpus, nthreads, evsel->filter);
if (err) {
*err_evsel = evsel;
break;
@@ -1175,11 +1195,9 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter)
{
struct perf_evsel *evsel;
int err = 0;
- const int ncpus = cpu_map__nr(evlist->cpus),
- nthreads = thread_map__nr(evlist->threads);
evlist__for_each(evlist, evsel) {
- err = perf_evsel__set_filter(evsel, ncpus, nthreads, filter);
+ err = perf_evsel__set_filter(evsel, filter);
if (err)
break;
}
@@ -1257,6 +1275,16 @@ u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist)
return __perf_evlist__combined_sample_type(evlist);
}
+u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+ u64 branch_type = 0;
+
+ evlist__for_each(evlist, evsel)
+ branch_type |= evsel->attr.branch_sample_type;
+ return branch_type;
+}
+
bool perf_evlist__valid_read_format(struct perf_evlist *evlist)
{
struct perf_evsel *first = perf_evlist__first(evlist), *pos = first;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 037633c1da9d..b39a6198f4ac 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -56,6 +56,7 @@ struct perf_evlist {
struct cpu_map *cpus;
struct perf_evsel *selected;
struct events_stats stats;
+ struct perf_env *env;
};
struct perf_evsel_str_handler {
@@ -114,6 +115,8 @@ void perf_evlist__close(struct perf_evlist *evlist);
void perf_evlist__set_id_pos(struct perf_evlist *evlist);
bool perf_can_sample_identifier(void);
+bool perf_can_record_switch_events(void);
+bool perf_can_record_cpu_wide(void);
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts);
int record_opts__config(struct record_opts *opts);
@@ -152,14 +155,9 @@ int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
void perf_evlist__set_selected(struct perf_evlist *evlist,
struct perf_evsel *evsel);
-static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
- struct cpu_map *cpus,
- struct thread_map *threads)
-{
- evlist->cpus = cpus;
- evlist->threads = threads;
-}
-
+int perf_evlist__set_maps(struct perf_evlist *evlist,
+ struct cpu_map *cpus,
+ struct thread_map *threads);
int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
@@ -169,6 +167,7 @@ void perf_evlist__set_leader(struct perf_evlist *evlist);
u64 perf_evlist__read_format(struct perf_evlist *evlist);
u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
+u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 2936b3080722..bac25f41a751 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -206,10 +206,13 @@ void perf_evsel__init(struct perf_evsel *evsel,
evsel->leader = evsel;
evsel->unit = "";
evsel->scale = 1.0;
+ evsel->evlist = NULL;
INIT_LIST_HEAD(&evsel->node);
+ INIT_LIST_HEAD(&evsel->config_terms);
perf_evsel__object.init(evsel);
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
perf_evsel__calc_id_pos(evsel);
+ evsel->cmdline_group_boundary = false;
}
struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
@@ -543,14 +546,15 @@ int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size)
static void
perf_evsel__config_callgraph(struct perf_evsel *evsel,
- struct record_opts *opts)
+ struct record_opts *opts,
+ struct callchain_param *param)
{
bool function = perf_evsel__is_function_event(evsel);
struct perf_event_attr *attr = &evsel->attr;
perf_evsel__set_sample_bit(evsel, CALLCHAIN);
- if (callchain_param.record_mode == CALLCHAIN_LBR) {
+ if (param->record_mode == CALLCHAIN_LBR) {
if (!opts->branch_stack) {
if (attr->exclude_user) {
pr_warning("LBR callstack option is only available "
@@ -566,12 +570,12 @@ perf_evsel__config_callgraph(struct perf_evsel *evsel,
"Falling back to framepointers.\n");
}
- if (callchain_param.record_mode == CALLCHAIN_DWARF) {
+ if (param->record_mode == CALLCHAIN_DWARF) {
if (!function) {
perf_evsel__set_sample_bit(evsel, REGS_USER);
perf_evsel__set_sample_bit(evsel, STACK_USER);
attr->sample_regs_user = PERF_REGS_MASK;
- attr->sample_stack_user = callchain_param.dump_size;
+ attr->sample_stack_user = param->dump_size;
attr->exclude_callchain_user = 1;
} else {
pr_info("Cannot use DWARF unwind for function trace event,"
@@ -585,6 +589,97 @@ perf_evsel__config_callgraph(struct perf_evsel *evsel,
}
}
+static void
+perf_evsel__reset_callgraph(struct perf_evsel *evsel,
+ struct callchain_param *param)
+{
+ struct perf_event_attr *attr = &evsel->attr;
+
+ perf_evsel__reset_sample_bit(evsel, CALLCHAIN);
+ if (param->record_mode == CALLCHAIN_LBR) {
+ perf_evsel__reset_sample_bit(evsel, BRANCH_STACK);
+ attr->branch_sample_type &= ~(PERF_SAMPLE_BRANCH_USER |
+ PERF_SAMPLE_BRANCH_CALL_STACK);
+ }
+ if (param->record_mode == CALLCHAIN_DWARF) {
+ perf_evsel__reset_sample_bit(evsel, REGS_USER);
+ perf_evsel__reset_sample_bit(evsel, STACK_USER);
+ }
+}
+
+static void apply_config_terms(struct perf_evsel *evsel,
+ struct record_opts *opts)
+{
+ struct perf_evsel_config_term *term;
+ struct list_head *config_terms = &evsel->config_terms;
+ struct perf_event_attr *attr = &evsel->attr;
+ struct callchain_param param;
+ u32 dump_size = 0;
+ char *callgraph_buf = NULL;
+
+ /* callgraph default */
+ param.record_mode = callchain_param.record_mode;
+
+ list_for_each_entry(term, config_terms, list) {
+ switch (term->type) {
+ case PERF_EVSEL__CONFIG_TERM_PERIOD:
+ attr->sample_period = term->val.period;
+ attr->freq = 0;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_FREQ:
+ attr->sample_freq = term->val.freq;
+ attr->freq = 1;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_TIME:
+ if (term->val.time)
+ perf_evsel__set_sample_bit(evsel, TIME);
+ else
+ perf_evsel__reset_sample_bit(evsel, TIME);
+ break;
+ case PERF_EVSEL__CONFIG_TERM_CALLGRAPH:
+ callgraph_buf = term->val.callgraph;
+ break;
+ case PERF_EVSEL__CONFIG_TERM_STACK_USER:
+ dump_size = term->val.stack_user;
+ break;
+ default:
+ break;
+ }
+ }
+
+ /* User explicitly set per-event callgraph, clear the old setting and reset. */
+ if ((callgraph_buf != NULL) || (dump_size > 0)) {
+
+ /* parse callgraph parameters */
+ if (callgraph_buf != NULL) {
+ if (!strcmp(callgraph_buf, "no")) {
+ param.enabled = false;
+ param.record_mode = CALLCHAIN_NONE;
+ } else {
+ param.enabled = true;
+ if (parse_callchain_record(callgraph_buf, &param)) {
+ pr_err("per-event callgraph setting for %s failed. "
+ "Apply callgraph global setting for it\n",
+ evsel->name);
+ return;
+ }
+ }
+ }
+ if (dump_size > 0) {
+ dump_size = round_up(dump_size, sizeof(u64));
+ param.dump_size = dump_size;
+ }
+
+ /* If global callgraph set, clear it */
+ if (callchain_param.enabled)
+ perf_evsel__reset_callgraph(evsel, &callchain_param);
+
+ /* set perf-event callgraph */
+ if (param.enabled)
+ perf_evsel__config_callgraph(evsel, opts, &param);
+ }
+}
+
/*
* The enable_on_exec/disabled value strategy:
*
@@ -689,7 +784,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
evsel->attr.exclude_callchain_user = 1;
if (callchain_param.enabled && !evsel->no_aux_samples)
- perf_evsel__config_callgraph(evsel, opts);
+ perf_evsel__config_callgraph(evsel, opts, &callchain_param);
if (opts->sample_intr_regs) {
attr->sample_regs_intr = PERF_REGS_MASK;
@@ -707,7 +802,8 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
*/
if (opts->sample_time &&
(!perf_missing_features.sample_id_all &&
- (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu)))
+ (!opts->no_inherit || target__has_cpu(&opts->target) || per_cpu ||
+ opts->sample_time_set)))
perf_evsel__set_sample_bit(evsel, TIME);
if (opts->raw_samples && !evsel->no_aux_samples) {
@@ -736,6 +832,9 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->mmap2 = track && !perf_missing_features.mmap2;
attr->comm = track;
+ if (opts->record_switch_events)
+ attr->context_switch = track;
+
if (opts->sample_transaction)
perf_evsel__set_sample_bit(evsel, TRANSACTION);
@@ -772,6 +871,12 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts)
attr->use_clockid = 1;
attr->clockid = opts->clockid;
}
+
+ /*
+ * Apply event specific term settings,
+ * it overloads any global configuration.
+ */
+ apply_config_terms(evsel, opts);
}
static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
@@ -815,14 +920,44 @@ static int perf_evsel__run_ioctl(struct perf_evsel *evsel, int ncpus, int nthrea
return 0;
}
-int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
- const char *filter)
+int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter)
{
return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
PERF_EVENT_IOC_SET_FILTER,
(void *)filter);
}
+int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter)
+{
+ char *new_filter = strdup(filter);
+
+ if (new_filter != NULL) {
+ free(evsel->filter);
+ evsel->filter = new_filter;
+ return 0;
+ }
+
+ return -1;
+}
+
+int perf_evsel__append_filter(struct perf_evsel *evsel,
+ const char *op, const char *filter)
+{
+ char *new_filter;
+
+ if (evsel->filter == NULL)
+ return perf_evsel__set_filter(evsel, filter);
+
+ if (asprintf(&new_filter,"(%s) %s (%s)", evsel->filter, op, filter) > 0) {
+ free(evsel->filter);
+ evsel->filter = new_filter;
+ return 0;
+ }
+
+ return -1;
+}
+
int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads)
{
return perf_evsel__run_ioctl(evsel, ncpus, nthreads,
@@ -865,6 +1000,16 @@ static void perf_evsel__free_id(struct perf_evsel *evsel)
zfree(&evsel->id);
}
+static void perf_evsel__free_config_terms(struct perf_evsel *evsel)
+{
+ struct perf_evsel_config_term *term, *h;
+
+ list_for_each_entry_safe(term, h, &evsel->config_terms, list) {
+ list_del(&term->list);
+ free(term);
+ }
+}
+
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
{
int cpu, thread;
@@ -882,8 +1027,10 @@ void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
void perf_evsel__exit(struct perf_evsel *evsel)
{
assert(list_empty(&evsel->node));
+ assert(evsel->evlist == NULL);
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
+ perf_evsel__free_config_terms(evsel);
close_cgroup(evsel->cgrp);
cpu_map__put(evsel->cpus);
thread_map__put(evsel->threads);
@@ -1095,6 +1242,7 @@ int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
PRINT_ATTRf(mmap2, p_unsigned);
PRINT_ATTRf(comm_exec, p_unsigned);
PRINT_ATTRf(use_clockid, p_unsigned);
+ PRINT_ATTRf(context_switch, p_unsigned);
PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned);
PRINT_ATTRf(bp_type, p_unsigned);
@@ -2075,8 +2223,13 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
printed += perf_event_attr__fprintf(fp, &evsel->attr,
__print_attr__fprintf, &first);
} else if (details->freq) {
- printed += comma_fprintf(fp, &first, " sample_freq=%" PRIu64,
- (u64)evsel->attr.sample_freq);
+ const char *term = "sample_freq";
+
+ if (!evsel->attr.freq)
+ term = "sample_period";
+
+ printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
+ term, (u64)evsel->attr.sample_freq);
}
out:
fputc('\n', fp);
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 4a7ed5656cf0..298e6bbca200 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -9,7 +9,7 @@
#include "xyarray.h"
#include "symbol.h"
#include "cpumap.h"
-#include "stat.h"
+#include "counts.h"
struct perf_evsel;
@@ -31,8 +31,38 @@ struct perf_sample_id {
struct cgroup_sel;
+/*
+ * The 'struct perf_evsel_config_term' is used to pass event
+ * specific configuration data to perf_evsel__config routine.
+ * It is allocated within event parsing and attached to
+ * perf_evsel::config_terms list head.
+*/
+enum {
+ PERF_EVSEL__CONFIG_TERM_PERIOD,
+ PERF_EVSEL__CONFIG_TERM_FREQ,
+ PERF_EVSEL__CONFIG_TERM_TIME,
+ PERF_EVSEL__CONFIG_TERM_CALLGRAPH,
+ PERF_EVSEL__CONFIG_TERM_STACK_USER,
+ PERF_EVSEL__CONFIG_TERM_MAX,
+};
+
+struct perf_evsel_config_term {
+ struct list_head list;
+ int type;
+ union {
+ u64 period;
+ u64 freq;
+ bool time;
+ char *callgraph;
+ u64 stack_user;
+ } val;
+};
+
/** struct perf_evsel - event selector
*
+ * @evlist - evlist this evsel is in, if it is in one.
+ * @node - To insert it into evlist->entries or in other list_heads, say in
+ * the event parsing routines.
* @name - Can be set to retain the original event name passed by the user,
* so that when showing results in tools such as 'perf stat', we
* show the name used, not some alias.
@@ -46,6 +76,7 @@ struct cgroup_sel;
*/
struct perf_evsel {
struct list_head node;
+ struct perf_evlist *evlist;
struct perf_event_attr attr;
char *filter;
struct xyarray *fd;
@@ -86,6 +117,8 @@ struct perf_evsel {
unsigned long *per_pkg_mask;
struct perf_evsel *leader;
char *group_name;
+ bool cmdline_group_boundary;
+ struct list_head config_terms;
};
union u64_swap {
@@ -182,8 +215,11 @@ void __perf_evsel__reset_sample_bit(struct perf_evsel *evsel,
void perf_evsel__set_sample_id(struct perf_evsel *evsel,
bool use_sample_identifier);
-int perf_evsel__set_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
- const char *filter);
+int perf_evsel__set_filter(struct perf_evsel *evsel, const char *filter);
+int perf_evsel__append_filter(struct perf_evsel *evsel,
+ const char *op, const char *filter);
+int perf_evsel__apply_filter(struct perf_evsel *evsel, int ncpus, int nthreads,
+ const char *filter);
int perf_evsel__enable(struct perf_evsel *evsel, int ncpus, int nthreads);
int perf_evsel__open_per_cpu(struct perf_evsel *evsel,
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 03ace57a800c..41814547da15 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -923,17 +923,13 @@ static void print_cmdline(struct perf_header *ph, int fd __maybe_unused,
FILE *fp)
{
int nr, i;
- char *str;
nr = ph->env.nr_cmdline;
- str = ph->env.cmdline;
fprintf(fp, "# cmdline : ");
- for (i = 0; i < nr; i++) {
- fprintf(fp, "%s ", str);
- str += strlen(str) + 1;
- }
+ for (i = 0; i < nr; i++)
+ fprintf(fp, "%s ", ph->env.cmdline_argv[i]);
fputc('\n', fp);
}
@@ -1541,14 +1537,13 @@ process_event_desc(struct perf_file_section *section __maybe_unused,
return 0;
}
-static int process_cmdline(struct perf_file_section *section __maybe_unused,
+static int process_cmdline(struct perf_file_section *section,
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
ssize_t ret;
- char *str;
- u32 nr, i;
- struct strbuf sb;
+ char *str, *cmdline = NULL, **argv = NULL;
+ u32 nr, i, len = 0;
ret = readn(fd, &nr, sizeof(nr));
if (ret != sizeof(nr))
@@ -1558,22 +1553,32 @@ static int process_cmdline(struct perf_file_section *section __maybe_unused,
nr = bswap_32(nr);
ph->env.nr_cmdline = nr;
- strbuf_init(&sb, 128);
+
+ cmdline = zalloc(section->size + nr + 1);
+ if (!cmdline)
+ return -1;
+
+ argv = zalloc(sizeof(char *) * (nr + 1));
+ if (!argv)
+ goto error;
for (i = 0; i < nr; i++) {
str = do_read_string(fd, ph);
if (!str)
goto error;
- /* include a NULL character at the end */
- strbuf_add(&sb, str, strlen(str) + 1);
+ argv[i] = cmdline + len;
+ memcpy(argv[i], str, strlen(str) + 1);
+ len += strlen(str) + 1;
free(str);
}
- ph->env.cmdline = strbuf_detach(&sb, NULL);
+ ph->env.cmdline = cmdline;
+ ph->env.cmdline_argv = (const char **) argv;
return 0;
error:
- strbuf_release(&sb);
+ free(argv);
+ free(cmdline);
return -1;
}
@@ -2509,6 +2514,7 @@ int perf_session__read_header(struct perf_session *session)
if (session->evlist == NULL)
return -ENOMEM;
+ session->evlist->env = &header->env;
if (perf_data_file__is_pipe(file))
return perf_header__read_pipe(session);
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index d4d57962c591..396e4965f0c9 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -66,7 +66,7 @@ struct perf_header;
int perf_file_header__read(struct perf_file_header *header,
struct perf_header *ph, int fd);
-struct perf_session_env {
+struct perf_env {
char *hostname;
char *os_release;
char *version;
@@ -84,6 +84,7 @@ struct perf_session_env {
int nr_pmu_mappings;
int nr_groups;
char *cmdline;
+ const char **cmdline_argv;
char *sibling_cores;
char *sibling_threads;
char *numa_nodes;
@@ -97,7 +98,7 @@ struct perf_header {
u64 data_size;
u64 feat_offset;
DECLARE_BITMAP(adds_features, HEADER_FEAT_BITS);
- struct perf_session_env env;
+ struct perf_env env;
};
struct perf_evlist;
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 6f28d53d4e46..08b6cd945f1e 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -151,6 +151,12 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
+ if (h->srcline)
+ hists__new_col_len(hists, HISTC_SRCLINE, strlen(h->srcline));
+
+ if (h->srcfile)
+ hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile));
+
if (h->transaction)
hists__new_col_len(hists, HISTC_TRANSACTION,
hist_entry__transaction_len());
@@ -618,7 +624,8 @@ iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *a
* and not events sampled. Thus we use a pseudo period of 1.
*/
he = __hists__add_entry(hists, al, iter->parent, &bi[i], NULL,
- 1, 1, 0, true);
+ 1, bi->flags.cycles ? bi->flags.cycles : 1,
+ 0, true);
if (he == NULL)
return -ENOMEM;
@@ -760,6 +767,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
struct hist_entry **he_cache = iter->priv;
struct hist_entry *he;
struct hist_entry he_tmp = {
+ .hists = evsel__hists(evsel),
.cpu = al->cpu,
.thread = al->thread,
.comm = thread__comm(al->thread),
@@ -944,6 +952,8 @@ void hist_entry__delete(struct hist_entry *he)
zfree(&he->stat_acc);
free_srcline(he->srcline);
+ if (he->srcfile && he->srcfile[0])
+ free(he->srcfile);
free_callchain(he->callchain);
free(he);
}
@@ -1099,13 +1109,14 @@ void hists__inc_stats(struct hists *hists, struct hist_entry *h)
static void __hists__insert_output_entry(struct rb_root *entries,
struct hist_entry *he,
- u64 min_callchain_hits)
+ u64 min_callchain_hits,
+ bool use_callchain)
{
struct rb_node **p = &entries->rb_node;
struct rb_node *parent = NULL;
struct hist_entry *iter;
- if (symbol_conf.use_callchain)
+ if (use_callchain)
callchain_param.sort(&he->sorted_chain, he->callchain,
min_callchain_hits, &callchain_param);
@@ -1129,6 +1140,13 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
struct rb_node *next;
struct hist_entry *n;
u64 min_callchain_hits;
+ struct perf_evsel *evsel = hists_to_evsel(hists);
+ bool use_callchain;
+
+ if (evsel && !symbol_conf.show_ref_callgraph)
+ use_callchain = evsel->attr.sample_type & PERF_SAMPLE_CALLCHAIN;
+ else
+ use_callchain = symbol_conf.use_callchain;
min_callchain_hits = hists->stats.total_period * (callchain_param.min_percent / 100);
@@ -1147,7 +1165,7 @@ void hists__output_resort(struct hists *hists, struct ui_progress *prog)
n = rb_entry(next, struct hist_entry, rb_node_in);
next = rb_next(&n->rb_node_in);
- __hists__insert_output_entry(&hists->entries, n, min_callchain_hits);
+ __hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain);
hists__inc_stats(hists, n);
if (!n->filtered)
@@ -1414,6 +1432,39 @@ int hists__link(struct hists *leader, struct hists *other)
return 0;
}
+void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
+ struct perf_sample *sample, bool nonany_branch_mode)
+{
+ struct branch_info *bi;
+
+ /* If we have branch cycles always annotate them. */
+ if (bs && bs->nr && bs->entries[0].flags.cycles) {
+ int i;
+
+ bi = sample__resolve_bstack(sample, al);
+ if (bi) {
+ struct addr_map_symbol *prev = NULL;
+
+ /*
+ * Ignore errors, still want to process the
+ * other entries.
+ *
+ * For non standard branch modes always
+ * force no IPC (prev == NULL)
+ *
+ * Note that perf stores branches reversed from
+ * program order!
+ */
+ for (i = bs->nr - 1; i >= 0; i--) {
+ addr_map_symbol__account_cycles(&bi[i].from,
+ nonany_branch_mode ? NULL : prev,
+ bi[i].flags.cycles);
+ prev = &bi[i].to;
+ }
+ free(bi);
+ }
+ }
+}
size_t perf_evlist__fprintf_nr_events(struct perf_evlist *evlist, FILE *fp)
{
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 5ed8d9c22981..de6d58e7f0d5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -30,6 +30,7 @@ enum hist_column {
HISTC_PARENT,
HISTC_CPU,
HISTC_SRCLINE,
+ HISTC_SRCFILE,
HISTC_MISPREDICT,
HISTC_IN_TX,
HISTC_ABORT,
@@ -47,6 +48,7 @@ enum hist_column {
HISTC_MEM_SNOOP,
HISTC_MEM_DCACHELINE,
HISTC_TRANSACTION,
+ HISTC_CYCLES,
HISTC_NR_COLS, /* Last entry */
};
@@ -311,7 +313,7 @@ int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
struct hist_browser_timer *hbt,
float min_pcnt,
- struct perf_session_env *env);
+ struct perf_env *env);
int script_browse(const char *script_opt);
#else
static inline
@@ -319,7 +321,7 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
const char *help __maybe_unused,
struct hist_browser_timer *hbt __maybe_unused,
float min_pcnt __maybe_unused,
- struct perf_session_env *env __maybe_unused)
+ struct perf_env *env __maybe_unused)
{
return 0;
}
@@ -349,6 +351,9 @@ static inline int script_browse(const char *script_opt __maybe_unused)
unsigned int hists__sort_list_width(struct hists *hists);
+void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
+ struct perf_sample *sample, bool nonany_branch_mode);
+
struct option;
int parse_filter_percentage(const struct option *opt __maybe_unused,
const char *arg, int unset __maybe_unused);
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
new file mode 100644
index 000000000000..ea768625ab5b
--- /dev/null
+++ b/tools/perf/util/intel-bts.c
@@ -0,0 +1,933 @@
+/*
+ * intel-bts.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <endian.h>
+#include <byteswap.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/log2.h>
+
+#include "cpumap.h"
+#include "color.h"
+#include "evsel.h"
+#include "evlist.h"
+#include "machine.h"
+#include "session.h"
+#include "util.h"
+#include "thread.h"
+#include "thread-stack.h"
+#include "debug.h"
+#include "tsc.h"
+#include "auxtrace.h"
+#include "intel-pt-decoder/intel-pt-insn-decoder.h"
+#include "intel-bts.h"
+
+#define MAX_TIMESTAMP (~0ULL)
+
+#define INTEL_BTS_ERR_NOINSN 5
+#define INTEL_BTS_ERR_LOST 9
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define le64_to_cpu bswap_64
+#else
+#define le64_to_cpu
+#endif
+
+struct intel_bts {
+ struct auxtrace auxtrace;
+ struct auxtrace_queues queues;
+ struct auxtrace_heap heap;
+ u32 auxtrace_type;
+ struct perf_session *session;
+ struct machine *machine;
+ bool sampling_mode;
+ bool snapshot_mode;
+ bool data_queued;
+ u32 pmu_type;
+ struct perf_tsc_conversion tc;
+ bool cap_user_time_zero;
+ struct itrace_synth_opts synth_opts;
+ bool sample_branches;
+ u32 branches_filter;
+ u64 branches_sample_type;
+ u64 branches_id;
+ size_t branches_event_size;
+ bool synth_needs_swap;
+};
+
+struct intel_bts_queue {
+ struct intel_bts *bts;
+ unsigned int queue_nr;
+ struct auxtrace_buffer *buffer;
+ bool on_heap;
+ bool done;
+ pid_t pid;
+ pid_t tid;
+ int cpu;
+ u64 time;
+ struct intel_pt_insn intel_pt_insn;
+ u32 sample_flags;
+};
+
+struct branch {
+ u64 from;
+ u64 to;
+ u64 misc;
+};
+
+static void intel_bts_dump(struct intel_bts *bts __maybe_unused,
+ unsigned char *buf, size_t len)
+{
+ struct branch *branch;
+ size_t i, pos = 0, br_sz = sizeof(struct branch), sz;
+ const char *color = PERF_COLOR_BLUE;
+
+ color_fprintf(stdout, color,
+ ". ... Intel BTS data: size %zu bytes\n",
+ len);
+
+ while (len) {
+ if (len >= br_sz)
+ sz = br_sz;
+ else
+ sz = len;
+ printf(".");
+ color_fprintf(stdout, color, " %08x: ", pos);
+ for (i = 0; i < sz; i++)
+ color_fprintf(stdout, color, " %02x", buf[i]);
+ for (; i < br_sz; i++)
+ color_fprintf(stdout, color, " ");
+ if (len >= br_sz) {
+ branch = (struct branch *)buf;
+ color_fprintf(stdout, color, " %"PRIx64" -> %"PRIx64" %s\n",
+ le64_to_cpu(branch->from),
+ le64_to_cpu(branch->to),
+ le64_to_cpu(branch->misc) & 0x10 ?
+ "pred" : "miss");
+ } else {
+ color_fprintf(stdout, color, " Bad record!\n");
+ }
+ pos += sz;
+ buf += sz;
+ len -= sz;
+ }
+}
+
+static void intel_bts_dump_event(struct intel_bts *bts, unsigned char *buf,
+ size_t len)
+{
+ printf(".\n");
+ intel_bts_dump(bts, buf, len);
+}
+
+static int intel_bts_lost(struct intel_bts *bts, struct perf_sample *sample)
+{
+ union perf_event event;
+ int err;
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ INTEL_BTS_ERR_LOST, sample->cpu, sample->pid,
+ sample->tid, 0, "Lost trace data");
+
+ err = perf_session__deliver_synth_event(bts->session, &event, NULL);
+ if (err)
+ pr_err("Intel BTS: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static struct intel_bts_queue *intel_bts_alloc_queue(struct intel_bts *bts,
+ unsigned int queue_nr)
+{
+ struct intel_bts_queue *btsq;
+
+ btsq = zalloc(sizeof(struct intel_bts_queue));
+ if (!btsq)
+ return NULL;
+
+ btsq->bts = bts;
+ btsq->queue_nr = queue_nr;
+ btsq->pid = -1;
+ btsq->tid = -1;
+ btsq->cpu = -1;
+
+ return btsq;
+}
+
+static int intel_bts_setup_queue(struct intel_bts *bts,
+ struct auxtrace_queue *queue,
+ unsigned int queue_nr)
+{
+ struct intel_bts_queue *btsq = queue->priv;
+
+ if (list_empty(&queue->head))
+ return 0;
+
+ if (!btsq) {
+ btsq = intel_bts_alloc_queue(bts, queue_nr);
+ if (!btsq)
+ return -ENOMEM;
+ queue->priv = btsq;
+
+ if (queue->cpu != -1)
+ btsq->cpu = queue->cpu;
+ btsq->tid = queue->tid;
+ }
+
+ if (bts->sampling_mode)
+ return 0;
+
+ if (!btsq->on_heap && !btsq->buffer) {
+ int ret;
+
+ btsq->buffer = auxtrace_buffer__next(queue, NULL);
+ if (!btsq->buffer)
+ return 0;
+
+ ret = auxtrace_heap__add(&bts->heap, queue_nr,
+ btsq->buffer->reference);
+ if (ret)
+ return ret;
+ btsq->on_heap = true;
+ }
+
+ return 0;
+}
+
+static int intel_bts_setup_queues(struct intel_bts *bts)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < bts->queues.nr_queues; i++) {
+ ret = intel_bts_setup_queue(bts, &bts->queues.queue_array[i],
+ i);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static inline int intel_bts_update_queues(struct intel_bts *bts)
+{
+ if (bts->queues.new_data) {
+ bts->queues.new_data = false;
+ return intel_bts_setup_queues(bts);
+ }
+ return 0;
+}
+
+static unsigned char *intel_bts_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b)
+{
+ size_t offs, len;
+
+ if (len_a > len_b)
+ offs = len_a - len_b;
+ else
+ offs = 0;
+
+ for (; offs < len_a; offs += sizeof(struct branch)) {
+ len = len_a - offs;
+ if (!memcmp(buf_a + offs, buf_b, len))
+ return buf_b + len;
+ }
+
+ return buf_b;
+}
+
+static int intel_bts_do_fix_overlap(struct auxtrace_queue *queue,
+ struct auxtrace_buffer *b)
+{
+ struct auxtrace_buffer *a;
+ void *start;
+
+ if (b->list.prev == &queue->head)
+ return 0;
+ a = list_entry(b->list.prev, struct auxtrace_buffer, list);
+ start = intel_bts_find_overlap(a->data, a->size, b->data, b->size);
+ if (!start)
+ return -EINVAL;
+ b->use_size = b->data + b->size - start;
+ b->use_data = start;
+ return 0;
+}
+
+static int intel_bts_synth_branch_sample(struct intel_bts_queue *btsq,
+ struct branch *branch)
+{
+ int ret;
+ struct intel_bts *bts = btsq->bts;
+ union perf_event event;
+ struct perf_sample sample = { .ip = 0, };
+
+ event.sample.header.type = PERF_RECORD_SAMPLE;
+ event.sample.header.misc = PERF_RECORD_MISC_USER;
+ event.sample.header.size = sizeof(struct perf_event_header);
+
+ sample.ip = le64_to_cpu(branch->from);
+ sample.pid = btsq->pid;
+ sample.tid = btsq->tid;
+ sample.addr = le64_to_cpu(branch->to);
+ sample.id = btsq->bts->branches_id;
+ sample.stream_id = btsq->bts->branches_id;
+ sample.period = 1;
+ sample.cpu = btsq->cpu;
+ sample.flags = btsq->sample_flags;
+ sample.insn_len = btsq->intel_pt_insn.length;
+
+ if (bts->synth_opts.inject) {
+ event.sample.header.size = bts->branches_event_size;
+ ret = perf_event__synthesize_sample(&event,
+ bts->branches_sample_type,
+ 0, &sample,
+ bts->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(bts->session, &event, &sample);
+ if (ret)
+ pr_err("Intel BTS: failed to deliver branch event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_bts_get_next_insn(struct intel_bts_queue *btsq, u64 ip)
+{
+ struct machine *machine = btsq->bts->machine;
+ struct thread *thread;
+ struct addr_location al;
+ unsigned char buf[1024];
+ size_t bufsz;
+ ssize_t len;
+ int x86_64;
+ uint8_t cpumode;
+ int err = -1;
+
+ bufsz = intel_pt_insn_max_size();
+
+ if (machine__kernel_ip(machine, ip))
+ cpumode = PERF_RECORD_MISC_KERNEL;
+ else
+ cpumode = PERF_RECORD_MISC_USER;
+
+ thread = machine__find_thread(machine, -1, btsq->tid);
+ if (!thread)
+ return -1;
+
+ thread__find_addr_map(thread, cpumode, MAP__FUNCTION, ip, &al);
+ if (!al.map || !al.map->dso)
+ goto out_put;
+
+ len = dso__data_read_addr(al.map->dso, al.map, machine, ip, buf, bufsz);
+ if (len <= 0)
+ goto out_put;
+
+ /* Load maps to ensure dso->is_64_bit has been updated */
+ map__load(al.map, machine->symbol_filter);
+
+ x86_64 = al.map->dso->is_64_bit;
+
+ if (intel_pt_get_insn(buf, len, x86_64, &btsq->intel_pt_insn))
+ goto out_put;
+
+ err = 0;
+out_put:
+ thread__put(thread);
+ return err;
+}
+
+static int intel_bts_synth_error(struct intel_bts *bts, int cpu, pid_t pid,
+ pid_t tid, u64 ip)
+{
+ union perf_event event;
+ int err;
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ INTEL_BTS_ERR_NOINSN, cpu, pid, tid, ip,
+ "Failed to get instruction");
+
+ err = perf_session__deliver_synth_event(bts->session, &event, NULL);
+ if (err)
+ pr_err("Intel BTS: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static int intel_bts_get_branch_type(struct intel_bts_queue *btsq,
+ struct branch *branch)
+{
+ int err;
+
+ if (!branch->from) {
+ if (branch->to)
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_BEGIN;
+ else
+ btsq->sample_flags = 0;
+ btsq->intel_pt_insn.length = 0;
+ } else if (!branch->to) {
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_END;
+ btsq->intel_pt_insn.length = 0;
+ } else {
+ err = intel_bts_get_next_insn(btsq, branch->from);
+ if (err) {
+ btsq->sample_flags = 0;
+ btsq->intel_pt_insn.length = 0;
+ if (!btsq->bts->synth_opts.errors)
+ return 0;
+ err = intel_bts_synth_error(btsq->bts, btsq->cpu,
+ btsq->pid, btsq->tid,
+ branch->from);
+ return err;
+ }
+ btsq->sample_flags = intel_pt_insn_type(btsq->intel_pt_insn.op);
+ /* Check for an async branch into the kernel */
+ if (!machine__kernel_ip(btsq->bts->machine, branch->from) &&
+ machine__kernel_ip(btsq->bts->machine, branch->to) &&
+ btsq->sample_flags != (PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_SYSCALLRET))
+ btsq->sample_flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT;
+ }
+
+ return 0;
+}
+
+static int intel_bts_process_buffer(struct intel_bts_queue *btsq,
+ struct auxtrace_buffer *buffer)
+{
+ struct branch *branch;
+ size_t sz, bsz = sizeof(struct branch);
+ u32 filter = btsq->bts->branches_filter;
+ int err = 0;
+
+ if (buffer->use_data) {
+ sz = buffer->use_size;
+ branch = buffer->use_data;
+ } else {
+ sz = buffer->size;
+ branch = buffer->data;
+ }
+
+ if (!btsq->bts->sample_branches)
+ return 0;
+
+ for (; sz > bsz; branch += 1, sz -= bsz) {
+ if (!branch->from && !branch->to)
+ continue;
+ intel_bts_get_branch_type(btsq, branch);
+ if (filter && !(filter & btsq->sample_flags))
+ continue;
+ err = intel_bts_synth_branch_sample(btsq, branch);
+ if (err)
+ break;
+ }
+ return err;
+}
+
+static int intel_bts_process_queue(struct intel_bts_queue *btsq, u64 *timestamp)
+{
+ struct auxtrace_buffer *buffer = btsq->buffer, *old_buffer = buffer;
+ struct auxtrace_queue *queue;
+ struct thread *thread;
+ int err;
+
+ if (btsq->done)
+ return 1;
+
+ if (btsq->pid == -1) {
+ thread = machine__find_thread(btsq->bts->machine, -1,
+ btsq->tid);
+ if (thread)
+ btsq->pid = thread->pid_;
+ } else {
+ thread = machine__findnew_thread(btsq->bts->machine, btsq->pid,
+ btsq->tid);
+ }
+
+ queue = &btsq->bts->queues.queue_array[btsq->queue_nr];
+
+ if (!buffer)
+ buffer = auxtrace_buffer__next(queue, NULL);
+
+ if (!buffer) {
+ if (!btsq->bts->sampling_mode)
+ btsq->done = 1;
+ err = 1;
+ goto out_put;
+ }
+
+ /* Currently there is no support for split buffers */
+ if (buffer->consecutive) {
+ err = -EINVAL;
+ goto out_put;
+ }
+
+ if (!buffer->data) {
+ int fd = perf_data_file__fd(btsq->bts->session->file);
+
+ buffer->data = auxtrace_buffer__get_data(buffer, fd);
+ if (!buffer->data) {
+ err = -ENOMEM;
+ goto out_put;
+ }
+ }
+
+ if (btsq->bts->snapshot_mode && !buffer->consecutive &&
+ intel_bts_do_fix_overlap(queue, buffer)) {
+ err = -ENOMEM;
+ goto out_put;
+ }
+
+ if (!btsq->bts->synth_opts.callchain && thread &&
+ (!old_buffer || btsq->bts->sampling_mode ||
+ (btsq->bts->snapshot_mode && !buffer->consecutive)))
+ thread_stack__set_trace_nr(thread, buffer->buffer_nr + 1);
+
+ err = intel_bts_process_buffer(btsq, buffer);
+
+ auxtrace_buffer__drop_data(buffer);
+
+ btsq->buffer = auxtrace_buffer__next(queue, buffer);
+ if (btsq->buffer) {
+ if (timestamp)
+ *timestamp = btsq->buffer->reference;
+ } else {
+ if (!btsq->bts->sampling_mode)
+ btsq->done = 1;
+ }
+out_put:
+ thread__put(thread);
+ return err;
+}
+
+static int intel_bts_flush_queue(struct intel_bts_queue *btsq)
+{
+ u64 ts = 0;
+ int ret;
+
+ while (1) {
+ ret = intel_bts_process_queue(btsq, &ts);
+ if (ret < 0)
+ return ret;
+ if (ret)
+ break;
+ }
+ return 0;
+}
+
+static int intel_bts_process_tid_exit(struct intel_bts *bts, pid_t tid)
+{
+ struct auxtrace_queues *queues = &bts->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ struct auxtrace_queue *queue = &bts->queues.queue_array[i];
+ struct intel_bts_queue *btsq = queue->priv;
+
+ if (btsq && btsq->tid == tid)
+ return intel_bts_flush_queue(btsq);
+ }
+ return 0;
+}
+
+static int intel_bts_process_queues(struct intel_bts *bts, u64 timestamp)
+{
+ while (1) {
+ unsigned int queue_nr;
+ struct auxtrace_queue *queue;
+ struct intel_bts_queue *btsq;
+ u64 ts = 0;
+ int ret;
+
+ if (!bts->heap.heap_cnt)
+ return 0;
+
+ if (bts->heap.heap_array[0].ordinal > timestamp)
+ return 0;
+
+ queue_nr = bts->heap.heap_array[0].queue_nr;
+ queue = &bts->queues.queue_array[queue_nr];
+ btsq = queue->priv;
+
+ auxtrace_heap__pop(&bts->heap);
+
+ ret = intel_bts_process_queue(btsq, &ts);
+ if (ret < 0) {
+ auxtrace_heap__add(&bts->heap, queue_nr, ts);
+ return ret;
+ }
+
+ if (!ret) {
+ ret = auxtrace_heap__add(&bts->heap, queue_nr, ts);
+ if (ret < 0)
+ return ret;
+ } else {
+ btsq->on_heap = false;
+ }
+ }
+
+ return 0;
+}
+
+static int intel_bts_process_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ u64 timestamp;
+ int err;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events) {
+ pr_err("Intel BTS requires ordered events\n");
+ return -EINVAL;
+ }
+
+ if (sample->time && sample->time != (u64)-1)
+ timestamp = perf_time_to_tsc(sample->time, &bts->tc);
+ else
+ timestamp = 0;
+
+ err = intel_bts_update_queues(bts);
+ if (err)
+ return err;
+
+ err = intel_bts_process_queues(bts, timestamp);
+ if (err)
+ return err;
+ if (event->header.type == PERF_RECORD_EXIT) {
+ err = intel_bts_process_tid_exit(bts, event->comm.tid);
+ if (err)
+ return err;
+ }
+
+ if (event->header.type == PERF_RECORD_AUX &&
+ (event->aux.flags & PERF_AUX_FLAG_TRUNCATED) &&
+ bts->synth_opts.errors)
+ err = intel_bts_lost(bts, sample);
+
+ return err;
+}
+
+static int intel_bts_process_auxtrace_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+
+ if (bts->sampling_mode)
+ return 0;
+
+ if (!bts->data_queued) {
+ struct auxtrace_buffer *buffer;
+ off_t data_offset;
+ int fd = perf_data_file__fd(session->file);
+ int err;
+
+ if (perf_data_file__is_pipe(session->file)) {
+ data_offset = 0;
+ } else {
+ data_offset = lseek(fd, 0, SEEK_CUR);
+ if (data_offset == -1)
+ return -errno;
+ }
+
+ err = auxtrace_queues__add_event(&bts->queues, session, event,
+ data_offset, &buffer);
+ if (err)
+ return err;
+
+ /* Dump here now we have copied a piped trace out of the pipe */
+ if (dump_trace) {
+ if (auxtrace_buffer__get_data(buffer, fd)) {
+ intel_bts_dump_event(bts, buffer->data,
+ buffer->size);
+ auxtrace_buffer__put_data(buffer);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int intel_bts_flush(struct perf_session *session __maybe_unused,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ int ret;
+
+ if (dump_trace || bts->sampling_mode)
+ return 0;
+
+ if (!tool->ordered_events)
+ return -EINVAL;
+
+ ret = intel_bts_update_queues(bts);
+ if (ret < 0)
+ return ret;
+
+ return intel_bts_process_queues(bts, MAX_TIMESTAMP);
+}
+
+static void intel_bts_free_queue(void *priv)
+{
+ struct intel_bts_queue *btsq = priv;
+
+ if (!btsq)
+ return;
+ free(btsq);
+}
+
+static void intel_bts_free_events(struct perf_session *session)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+ struct auxtrace_queues *queues = &bts->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ intel_bts_free_queue(queues->queue_array[i].priv);
+ queues->queue_array[i].priv = NULL;
+ }
+ auxtrace_queues__free(queues);
+}
+
+static void intel_bts_free(struct perf_session *session)
+{
+ struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,
+ auxtrace);
+
+ auxtrace_heap__free(&bts->heap);
+ intel_bts_free_events(session);
+ session->auxtrace = NULL;
+ free(bts);
+}
+
+struct intel_bts_synth {
+ struct perf_tool dummy_tool;
+ struct perf_session *session;
+};
+
+static int intel_bts_event_synth(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct intel_bts_synth *intel_bts_synth =
+ container_of(tool, struct intel_bts_synth, dummy_tool);
+
+ return perf_session__deliver_synth_event(intel_bts_synth->session,
+ event, NULL);
+}
+
+static int intel_bts_synth_event(struct perf_session *session,
+ struct perf_event_attr *attr, u64 id)
+{
+ struct intel_bts_synth intel_bts_synth;
+
+ memset(&intel_bts_synth, 0, sizeof(struct intel_bts_synth));
+ intel_bts_synth.session = session;
+
+ return perf_event__synthesize_attr(&intel_bts_synth.dummy_tool, attr, 1,
+ &id, intel_bts_event_synth);
+}
+
+static int intel_bts_synth_events(struct intel_bts *bts,
+ struct perf_session *session)
+{
+ struct perf_evlist *evlist = session->evlist;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr;
+ bool found = false;
+ u64 id;
+ int err;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == bts->pmu_type && evsel->ids) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ pr_debug("There are no selected events with Intel BTS data\n");
+ return 0;
+ }
+
+ memset(&attr, 0, sizeof(struct perf_event_attr));
+ attr.size = sizeof(struct perf_event_attr);
+ attr.type = PERF_TYPE_HARDWARE;
+ attr.sample_type = evsel->attr.sample_type & PERF_SAMPLE_MASK;
+ attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
+ PERF_SAMPLE_PERIOD;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CPU;
+ attr.exclude_user = evsel->attr.exclude_user;
+ attr.exclude_kernel = evsel->attr.exclude_kernel;
+ attr.exclude_hv = evsel->attr.exclude_hv;
+ attr.exclude_host = evsel->attr.exclude_host;
+ attr.exclude_guest = evsel->attr.exclude_guest;
+ attr.sample_id_all = evsel->attr.sample_id_all;
+ attr.read_format = evsel->attr.read_format;
+
+ id = evsel->id[0] + 1000000000;
+ if (!id)
+ id = 1;
+
+ if (bts->synth_opts.branches) {
+ attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
+ attr.sample_period = 1;
+ attr.sample_type |= PERF_SAMPLE_ADDR;
+ pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_bts_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'branches' event type\n",
+ __func__);
+ return err;
+ }
+ bts->sample_branches = true;
+ bts->branches_sample_type = attr.sample_type;
+ bts->branches_id = id;
+ /*
+ * We only use sample types from PERF_SAMPLE_MASK so we can use
+ * __perf_evsel__sample_size() here.
+ */
+ bts->branches_event_size = sizeof(struct sample_event) +
+ __perf_evsel__sample_size(attr.sample_type);
+ }
+
+ bts->synth_needs_swap = evsel->needs_swap;
+
+ return 0;
+}
+
+static const char * const intel_bts_info_fmts[] = {
+ [INTEL_BTS_PMU_TYPE] = " PMU Type %"PRId64"\n",
+ [INTEL_BTS_TIME_SHIFT] = " Time Shift %"PRIu64"\n",
+ [INTEL_BTS_TIME_MULT] = " Time Muliplier %"PRIu64"\n",
+ [INTEL_BTS_TIME_ZERO] = " Time Zero %"PRIu64"\n",
+ [INTEL_BTS_CAP_USER_TIME_ZERO] = " Cap Time Zero %"PRId64"\n",
+ [INTEL_BTS_SNAPSHOT_MODE] = " Snapshot mode %"PRId64"\n",
+};
+
+static void intel_bts_print_info(u64 *arr, int start, int finish)
+{
+ int i;
+
+ if (!dump_trace)
+ return;
+
+ for (i = start; i <= finish; i++)
+ fprintf(stdout, intel_bts_info_fmts[i], arr[i]);
+}
+
+u64 intel_bts_auxtrace_info_priv[INTEL_BTS_AUXTRACE_PRIV_SIZE];
+
+int intel_bts_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ size_t min_sz = sizeof(u64) * INTEL_BTS_SNAPSHOT_MODE;
+ struct intel_bts *bts;
+ int err;
+
+ if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event) +
+ min_sz)
+ return -EINVAL;
+
+ bts = zalloc(sizeof(struct intel_bts));
+ if (!bts)
+ return -ENOMEM;
+
+ err = auxtrace_queues__init(&bts->queues);
+ if (err)
+ goto err_free;
+
+ bts->session = session;
+ bts->machine = &session->machines.host; /* No kvm support */
+ bts->auxtrace_type = auxtrace_info->type;
+ bts->pmu_type = auxtrace_info->priv[INTEL_BTS_PMU_TYPE];
+ bts->tc.time_shift = auxtrace_info->priv[INTEL_BTS_TIME_SHIFT];
+ bts->tc.time_mult = auxtrace_info->priv[INTEL_BTS_TIME_MULT];
+ bts->tc.time_zero = auxtrace_info->priv[INTEL_BTS_TIME_ZERO];
+ bts->cap_user_time_zero =
+ auxtrace_info->priv[INTEL_BTS_CAP_USER_TIME_ZERO];
+ bts->snapshot_mode = auxtrace_info->priv[INTEL_BTS_SNAPSHOT_MODE];
+
+ bts->sampling_mode = false;
+
+ bts->auxtrace.process_event = intel_bts_process_event;
+ bts->auxtrace.process_auxtrace_event = intel_bts_process_auxtrace_event;
+ bts->auxtrace.flush_events = intel_bts_flush;
+ bts->auxtrace.free_events = intel_bts_free_events;
+ bts->auxtrace.free = intel_bts_free;
+ session->auxtrace = &bts->auxtrace;
+
+ intel_bts_print_info(&auxtrace_info->priv[0], INTEL_BTS_PMU_TYPE,
+ INTEL_BTS_SNAPSHOT_MODE);
+
+ if (dump_trace)
+ return 0;
+
+ if (session->itrace_synth_opts && session->itrace_synth_opts->set)
+ bts->synth_opts = *session->itrace_synth_opts;
+ else
+ itrace_synth_opts__set_default(&bts->synth_opts);
+
+ if (bts->synth_opts.calls)
+ bts->branches_filter |= PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_TRACE_END;
+ if (bts->synth_opts.returns)
+ bts->branches_filter |= PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_TRACE_BEGIN;
+
+ err = intel_bts_synth_events(bts, session);
+ if (err)
+ goto err_free_queues;
+
+ err = auxtrace_queues__process_index(&bts->queues, session);
+ if (err)
+ goto err_free_queues;
+
+ if (bts->queues.populated)
+ bts->data_queued = true;
+
+ return 0;
+
+err_free_queues:
+ auxtrace_queues__free(&bts->queues);
+ session->auxtrace = NULL;
+err_free:
+ free(bts);
+ return err;
+}
diff --git a/tools/perf/util/intel-bts.h b/tools/perf/util/intel-bts.h
new file mode 100644
index 000000000000..ca65e21b3e83
--- /dev/null
+++ b/tools/perf/util/intel-bts.h
@@ -0,0 +1,43 @@
+/*
+ * intel-bts.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__PERF_INTEL_BTS_H__
+#define INCLUDE__PERF_INTEL_BTS_H__
+
+#define INTEL_BTS_PMU_NAME "intel_bts"
+
+enum {
+ INTEL_BTS_PMU_TYPE,
+ INTEL_BTS_TIME_SHIFT,
+ INTEL_BTS_TIME_MULT,
+ INTEL_BTS_TIME_ZERO,
+ INTEL_BTS_CAP_USER_TIME_ZERO,
+ INTEL_BTS_SNAPSHOT_MODE,
+ INTEL_BTS_AUXTRACE_PRIV_MAX,
+};
+
+#define INTEL_BTS_AUXTRACE_PRIV_SIZE (INTEL_BTS_AUXTRACE_PRIV_MAX * sizeof(u64))
+
+struct auxtrace_record;
+struct perf_tool;
+union perf_event;
+struct perf_session;
+
+struct auxtrace_record *intel_bts_recording_init(int *err);
+
+int intel_bts_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/Build b/tools/perf/util/intel-pt-decoder/Build
new file mode 100644
index 000000000000..240730d682c1
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/Build
@@ -0,0 +1,11 @@
+libperf-$(CONFIG_AUXTRACE) += intel-pt-pkt-decoder.o intel-pt-insn-decoder.o intel-pt-log.o intel-pt-decoder.o
+
+inat_tables_script = util/intel-pt-decoder/gen-insn-attr-x86.awk
+inat_tables_maps = util/intel-pt-decoder/x86-opcode-map.txt
+
+$(OUTPUT)util/intel-pt-decoder/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
+ @$(call echo-cmd,gen)$(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
+
+$(OUTPUT)util/intel-pt-decoder/intel-pt-insn-decoder.o: util/intel-pt-decoder/inat.c $(OUTPUT)util/intel-pt-decoder/inat-tables.c
+
+CFLAGS_intel-pt-insn-decoder.o += -I$(OUTPUT)util/intel-pt-decoder -Wno-override-init
diff --git a/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
new file mode 100644
index 000000000000..517567347aac
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
@@ -0,0 +1,386 @@
+#!/bin/awk -f
+# gen-insn-attr-x86.awk: Instruction attribute table generator
+# Written by Masami Hiramatsu <mhiramat@redhat.com>
+#
+# Usage: awk -f gen-insn-attr-x86.awk x86-opcode-map.txt > inat-tables.c
+
+# Awk implementation sanity check
+function check_awk_implement() {
+ if (sprintf("%x", 0) != "0")
+ return "Your awk has a printf-format problem."
+ return ""
+}
+
+# Clear working vars
+function clear_vars() {
+ delete table
+ delete lptable2
+ delete lptable1
+ delete lptable3
+ eid = -1 # escape id
+ gid = -1 # group id
+ aid = -1 # AVX id
+ tname = ""
+}
+
+BEGIN {
+ # Implementation error checking
+ awkchecked = check_awk_implement()
+ if (awkchecked != "") {
+ print "Error: " awkchecked > "/dev/stderr"
+ print "Please try to use gawk." > "/dev/stderr"
+ exit 1
+ }
+
+ # Setup generating tables
+ print "/* x86 opcode map generated from x86-opcode-map.txt */"
+ print "/* Do not change this code. */\n"
+ ggid = 1
+ geid = 1
+ gaid = 0
+ delete etable
+ delete gtable
+ delete atable
+
+ opnd_expr = "^[A-Za-z/]"
+ ext_expr = "^\\("
+ sep_expr = "^\\|$"
+ group_expr = "^Grp[0-9A-Za-z]+"
+
+ imm_expr = "^[IJAOL][a-z]"
+ imm_flag["Ib"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+ imm_flag["Jb"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+ imm_flag["Iw"] = "INAT_MAKE_IMM(INAT_IMM_WORD)"
+ imm_flag["Id"] = "INAT_MAKE_IMM(INAT_IMM_DWORD)"
+ imm_flag["Iq"] = "INAT_MAKE_IMM(INAT_IMM_QWORD)"
+ imm_flag["Ap"] = "INAT_MAKE_IMM(INAT_IMM_PTR)"
+ imm_flag["Iz"] = "INAT_MAKE_IMM(INAT_IMM_VWORD32)"
+ imm_flag["Jz"] = "INAT_MAKE_IMM(INAT_IMM_VWORD32)"
+ imm_flag["Iv"] = "INAT_MAKE_IMM(INAT_IMM_VWORD)"
+ imm_flag["Ob"] = "INAT_MOFFSET"
+ imm_flag["Ov"] = "INAT_MOFFSET"
+ imm_flag["Lx"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
+
+ modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
+ force64_expr = "\\([df]64\\)"
+ rex_expr = "^REX(\\.[XRWB]+)*"
+ fpu_expr = "^ESC" # TODO
+
+ lprefix1_expr = "\\((66|!F3)\\)"
+ lprefix2_expr = "\\(F3\\)"
+ lprefix3_expr = "\\((F2|!F3|66\\&F2)\\)"
+ lprefix_expr = "\\((66|F2|F3)\\)"
+ max_lprefix = 4
+
+ # All opcodes starting with lower-case 'v' or with (v1) superscript
+ # accepts VEX prefix
+ vexok_opcode_expr = "^v.*"
+ vexok_expr = "\\(v1\\)"
+ # All opcodes with (v) superscript supports *only* VEX prefix
+ vexonly_expr = "\\(v\\)"
+
+ prefix_expr = "\\(Prefix\\)"
+ prefix_num["Operand-Size"] = "INAT_PFX_OPNDSZ"
+ prefix_num["REPNE"] = "INAT_PFX_REPNE"
+ prefix_num["REP/REPE"] = "INAT_PFX_REPE"
+ prefix_num["XACQUIRE"] = "INAT_PFX_REPNE"
+ prefix_num["XRELEASE"] = "INAT_PFX_REPE"
+ prefix_num["LOCK"] = "INAT_PFX_LOCK"
+ prefix_num["SEG=CS"] = "INAT_PFX_CS"
+ prefix_num["SEG=DS"] = "INAT_PFX_DS"
+ prefix_num["SEG=ES"] = "INAT_PFX_ES"
+ prefix_num["SEG=FS"] = "INAT_PFX_FS"
+ prefix_num["SEG=GS"] = "INAT_PFX_GS"
+ prefix_num["SEG=SS"] = "INAT_PFX_SS"
+ prefix_num["Address-Size"] = "INAT_PFX_ADDRSZ"
+ prefix_num["VEX+1byte"] = "INAT_PFX_VEX2"
+ prefix_num["VEX+2byte"] = "INAT_PFX_VEX3"
+
+ clear_vars()
+}
+
+function semantic_error(msg) {
+ print "Semantic error at " NR ": " msg > "/dev/stderr"
+ exit 1
+}
+
+function debug(msg) {
+ print "DEBUG: " msg
+}
+
+function array_size(arr, i,c) {
+ c = 0
+ for (i in arr)
+ c++
+ return c
+}
+
+/^Table:/ {
+ print "/* " $0 " */"
+ if (tname != "")
+ semantic_error("Hit Table: before EndTable:.");
+}
+
+/^Referrer:/ {
+ if (NF != 1) {
+ # escape opcode table
+ ref = ""
+ for (i = 2; i <= NF; i++)
+ ref = ref $i
+ eid = escape[ref]
+ tname = sprintf("inat_escape_table_%d", eid)
+ }
+}
+
+/^AVXcode:/ {
+ if (NF != 1) {
+ # AVX/escape opcode table
+ aid = $2
+ if (gaid <= aid)
+ gaid = aid + 1
+ if (tname == "") # AVX only opcode table
+ tname = sprintf("inat_avx_table_%d", $2)
+ }
+ if (aid == -1 && eid == -1) # primary opcode table
+ tname = "inat_primary_table"
+}
+
+/^GrpTable:/ {
+ print "/* " $0 " */"
+ if (!($2 in group))
+ semantic_error("No group: " $2 )
+ gid = group[$2]
+ tname = "inat_group_table_" gid
+}
+
+function print_table(tbl,name,fmt,n)
+{
+ print "const insn_attr_t " name " = {"
+ for (i = 0; i < n; i++) {
+ id = sprintf(fmt, i)
+ if (tbl[id])
+ print " [" id "] = " tbl[id] ","
+ }
+ print "};"
+}
+
+/^EndTable/ {
+ if (gid != -1) {
+ # print group tables
+ if (array_size(table) != 0) {
+ print_table(table, tname "[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,0] = tname
+ }
+ if (array_size(lptable1) != 0) {
+ print_table(lptable1, tname "_1[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,1] = tname "_1"
+ }
+ if (array_size(lptable2) != 0) {
+ print_table(lptable2, tname "_2[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,2] = tname "_2"
+ }
+ if (array_size(lptable3) != 0) {
+ print_table(lptable3, tname "_3[INAT_GROUP_TABLE_SIZE]",
+ "0x%x", 8)
+ gtable[gid,3] = tname "_3"
+ }
+ } else {
+ # print primary/escaped tables
+ if (array_size(table) != 0) {
+ print_table(table, tname "[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,0] = tname
+ if (aid >= 0)
+ atable[aid,0] = tname
+ }
+ if (array_size(lptable1) != 0) {
+ print_table(lptable1,tname "_1[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,1] = tname "_1"
+ if (aid >= 0)
+ atable[aid,1] = tname "_1"
+ }
+ if (array_size(lptable2) != 0) {
+ print_table(lptable2,tname "_2[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,2] = tname "_2"
+ if (aid >= 0)
+ atable[aid,2] = tname "_2"
+ }
+ if (array_size(lptable3) != 0) {
+ print_table(lptable3,tname "_3[INAT_OPCODE_TABLE_SIZE]",
+ "0x%02x", 256)
+ etable[eid,3] = tname "_3"
+ if (aid >= 0)
+ atable[aid,3] = tname "_3"
+ }
+ }
+ print ""
+ clear_vars()
+}
+
+function add_flags(old,new) {
+ if (old && new)
+ return old " | " new
+ else if (old)
+ return old
+ else
+ return new
+}
+
+# convert operands to flags.
+function convert_operands(count,opnd, i,j,imm,mod)
+{
+ imm = null
+ mod = null
+ for (j = 1; j <= count; j++) {
+ i = opnd[j]
+ if (match(i, imm_expr) == 1) {
+ if (!imm_flag[i])
+ semantic_error("Unknown imm opnd: " i)
+ if (imm) {
+ if (i != "Ib")
+ semantic_error("Second IMM error")
+ imm = add_flags(imm, "INAT_SCNDIMM")
+ } else
+ imm = imm_flag[i]
+ } else if (match(i, modrm_expr))
+ mod = "INAT_MODRM"
+ }
+ return add_flags(imm, mod)
+}
+
+/^[0-9a-f]+\:/ {
+ if (NR == 1)
+ next
+ # get index
+ idx = "0x" substr($1, 1, index($1,":") - 1)
+ if (idx in table)
+ semantic_error("Redefine " idx " in " tname)
+
+ # check if escaped opcode
+ if ("escape" == $2) {
+ if ($3 != "#")
+ semantic_error("No escaped name")
+ ref = ""
+ for (i = 4; i <= NF; i++)
+ ref = ref $i
+ if (ref in escape)
+ semantic_error("Redefine escape (" ref ")")
+ escape[ref] = geid
+ geid++
+ table[idx] = "INAT_MAKE_ESCAPE(" escape[ref] ")"
+ next
+ }
+
+ variant = null
+ # converts
+ i = 2
+ while (i <= NF) {
+ opcode = $(i++)
+ delete opnds
+ ext = null
+ flags = null
+ opnd = null
+ # parse one opcode
+ if (match($i, opnd_expr)) {
+ opnd = $i
+ count = split($(i++), opnds, ",")
+ flags = convert_operands(count, opnds)
+ }
+ if (match($i, ext_expr))
+ ext = $(i++)
+ if (match($i, sep_expr))
+ i++
+ else if (i < NF)
+ semantic_error($i " is not a separator")
+
+ # check if group opcode
+ if (match(opcode, group_expr)) {
+ if (!(opcode in group)) {
+ group[opcode] = ggid
+ ggid++
+ }
+ flags = add_flags(flags, "INAT_MAKE_GROUP(" group[opcode] ")")
+ }
+ # check force(or default) 64bit
+ if (match(ext, force64_expr))
+ flags = add_flags(flags, "INAT_FORCE64")
+
+ # check REX prefix
+ if (match(opcode, rex_expr))
+ flags = add_flags(flags, "INAT_MAKE_PREFIX(INAT_PFX_REX)")
+
+ # check coprocessor escape : TODO
+ if (match(opcode, fpu_expr))
+ flags = add_flags(flags, "INAT_MODRM")
+
+ # check VEX codes
+ if (match(ext, vexonly_expr))
+ flags = add_flags(flags, "INAT_VEXOK | INAT_VEXONLY")
+ else if (match(ext, vexok_expr) || match(opcode, vexok_opcode_expr))
+ flags = add_flags(flags, "INAT_VEXOK")
+
+ # check prefixes
+ if (match(ext, prefix_expr)) {
+ if (!prefix_num[opcode])
+ semantic_error("Unknown prefix: " opcode)
+ flags = add_flags(flags, "INAT_MAKE_PREFIX(" prefix_num[opcode] ")")
+ }
+ if (length(flags) == 0)
+ continue
+ # check if last prefix
+ if (match(ext, lprefix1_expr)) {
+ lptable1[idx] = add_flags(lptable1[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (match(ext, lprefix2_expr)) {
+ lptable2[idx] = add_flags(lptable2[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (match(ext, lprefix3_expr)) {
+ lptable3[idx] = add_flags(lptable3[idx],flags)
+ variant = "INAT_VARIANT"
+ }
+ if (!match(ext, lprefix_expr)){
+ table[idx] = add_flags(table[idx],flags)
+ }
+ }
+ if (variant)
+ table[idx] = add_flags(table[idx],variant)
+}
+
+END {
+ if (awkchecked != "")
+ exit 1
+ # print escape opcode map's array
+ print "/* Escape opcode map array */"
+ print "const insn_attr_t * const inat_escape_tables[INAT_ESC_MAX + 1]" \
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < geid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (etable[i,j])
+ print " ["i"]["j"] = "etable[i,j]","
+ print "};\n"
+ # print group opcode map's array
+ print "/* Group opcode map array */"
+ print "const insn_attr_t * const inat_group_tables[INAT_GRP_MAX + 1]"\
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < ggid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (gtable[i,j])
+ print " ["i"]["j"] = "gtable[i,j]","
+ print "};\n"
+ # print AVX opcode map's array
+ print "/* AVX opcode map array */"
+ print "const insn_attr_t * const inat_avx_tables[X86_VEX_M_MAX + 1]"\
+ "[INAT_LSTPFX_MAX + 1] = {"
+ for (i = 0; i < gaid; i++)
+ for (j = 0; j < max_lprefix; j++)
+ if (atable[i,j])
+ print " ["i"]["j"] = "atable[i,j]","
+ print "};"
+}
diff --git a/tools/perf/util/intel-pt-decoder/inat.c b/tools/perf/util/intel-pt-decoder/inat.c
new file mode 100644
index 000000000000..906d94aa0a24
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat.c
@@ -0,0 +1,96 @@
+/*
+ * x86 instruction attribute tables
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#include "insn.h"
+
+/* Attribute tables are generated from opcode map */
+#include "inat-tables.c"
+
+/* Attribute search APIs */
+insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
+{
+ return inat_primary_table[opcode];
+}
+
+int inat_get_last_prefix_id(insn_byte_t last_pfx)
+{
+ insn_attr_t lpfx_attr;
+
+ lpfx_attr = inat_get_opcode_attribute(last_pfx);
+ return inat_last_prefix_id(lpfx_attr);
+}
+
+insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id,
+ insn_attr_t esc_attr)
+{
+ const insn_attr_t *table;
+ int n;
+
+ n = inat_escape_id(esc_attr);
+
+ table = inat_escape_tables[n][0];
+ if (!table)
+ return 0;
+ if (inat_has_variant(table[opcode]) && lpfx_id) {
+ table = inat_escape_tables[n][lpfx_id];
+ if (!table)
+ return 0;
+ }
+ return table[opcode];
+}
+
+insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id,
+ insn_attr_t grp_attr)
+{
+ const insn_attr_t *table;
+ int n;
+
+ n = inat_group_id(grp_attr);
+
+ table = inat_group_tables[n][0];
+ if (!table)
+ return inat_group_common_attribute(grp_attr);
+ if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
+ table = inat_group_tables[n][lpfx_id];
+ if (!table)
+ return inat_group_common_attribute(grp_attr);
+ }
+ return table[X86_MODRM_REG(modrm)] |
+ inat_group_common_attribute(grp_attr);
+}
+
+insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m,
+ insn_byte_t vex_p)
+{
+ const insn_attr_t *table;
+ if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX)
+ return 0;
+ /* At first, this checks the master table */
+ table = inat_avx_tables[vex_m][0];
+ if (!table)
+ return 0;
+ if (!inat_is_group(table[opcode]) && vex_p) {
+ /* If this is not a group, get attribute directly */
+ table = inat_avx_tables[vex_m][vex_p];
+ if (!table)
+ return 0;
+ }
+ return table[opcode];
+}
diff --git a/tools/perf/util/intel-pt-decoder/inat.h b/tools/perf/util/intel-pt-decoder/inat.h
new file mode 100644
index 000000000000..611645e903a8
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat.h
@@ -0,0 +1,221 @@
+#ifndef _ASM_X86_INAT_H
+#define _ASM_X86_INAT_H
+/*
+ * x86 instruction attributes
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+#include "inat_types.h"
+
+/*
+ * Internal bits. Don't use bitmasks directly, because these bits are
+ * unstable. You should use checking functions.
+ */
+
+#define INAT_OPCODE_TABLE_SIZE 256
+#define INAT_GROUP_TABLE_SIZE 8
+
+/* Legacy last prefixes */
+#define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */
+#define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */
+#define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */
+/* Other Legacy prefixes */
+#define INAT_PFX_LOCK 4 /* 0xF0 */
+#define INAT_PFX_CS 5 /* 0x2E */
+#define INAT_PFX_DS 6 /* 0x3E */
+#define INAT_PFX_ES 7 /* 0x26 */
+#define INAT_PFX_FS 8 /* 0x64 */
+#define INAT_PFX_GS 9 /* 0x65 */
+#define INAT_PFX_SS 10 /* 0x36 */
+#define INAT_PFX_ADDRSZ 11 /* 0x67 */
+/* x86-64 REX prefix */
+#define INAT_PFX_REX 12 /* 0x4X */
+/* AVX VEX prefixes */
+#define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */
+#define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */
+
+#define INAT_LSTPFX_MAX 3
+#define INAT_LGCPFX_MAX 11
+
+/* Immediate size */
+#define INAT_IMM_BYTE 1
+#define INAT_IMM_WORD 2
+#define INAT_IMM_DWORD 3
+#define INAT_IMM_QWORD 4
+#define INAT_IMM_PTR 5
+#define INAT_IMM_VWORD32 6
+#define INAT_IMM_VWORD 7
+
+/* Legacy prefix */
+#define INAT_PFX_OFFS 0
+#define INAT_PFX_BITS 4
+#define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1)
+#define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS)
+/* Escape opcodes */
+#define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS)
+#define INAT_ESC_BITS 2
+#define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1)
+#define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS)
+/* Group opcodes (1-16) */
+#define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS)
+#define INAT_GRP_BITS 5
+#define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1)
+#define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS)
+/* Immediates */
+#define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS)
+#define INAT_IMM_BITS 3
+#define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS)
+/* Flags */
+#define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS)
+#define INAT_MODRM (1 << (INAT_FLAG_OFFS))
+#define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1))
+#define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2))
+#define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3))
+#define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4))
+#define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5))
+#define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6))
+/* Attribute making macros for attribute tables */
+#define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS)
+#define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS)
+#define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM)
+#define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS)
+
+/* Attribute search APIs */
+extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode);
+extern int inat_get_last_prefix_id(insn_byte_t last_pfx);
+extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode,
+ int lpfx_id,
+ insn_attr_t esc_attr);
+extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm,
+ int lpfx_id,
+ insn_attr_t esc_attr);
+extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode,
+ insn_byte_t vex_m,
+ insn_byte_t vex_pp);
+
+/* Attribute checking functions */
+static inline int inat_is_legacy_prefix(insn_attr_t attr)
+{
+ attr &= INAT_PFX_MASK;
+ return attr && attr <= INAT_LGCPFX_MAX;
+}
+
+static inline int inat_is_address_size_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ;
+}
+
+static inline int inat_is_operand_size_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ;
+}
+
+static inline int inat_is_rex_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_REX;
+}
+
+static inline int inat_last_prefix_id(insn_attr_t attr)
+{
+ if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX)
+ return 0;
+ else
+ return attr & INAT_PFX_MASK;
+}
+
+static inline int inat_is_vex_prefix(insn_attr_t attr)
+{
+ attr &= INAT_PFX_MASK;
+ return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3;
+}
+
+static inline int inat_is_vex3_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3;
+}
+
+static inline int inat_is_escape(insn_attr_t attr)
+{
+ return attr & INAT_ESC_MASK;
+}
+
+static inline int inat_escape_id(insn_attr_t attr)
+{
+ return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS;
+}
+
+static inline int inat_is_group(insn_attr_t attr)
+{
+ return attr & INAT_GRP_MASK;
+}
+
+static inline int inat_group_id(insn_attr_t attr)
+{
+ return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS;
+}
+
+static inline int inat_group_common_attribute(insn_attr_t attr)
+{
+ return attr & ~INAT_GRP_MASK;
+}
+
+static inline int inat_has_immediate(insn_attr_t attr)
+{
+ return attr & INAT_IMM_MASK;
+}
+
+static inline int inat_immediate_size(insn_attr_t attr)
+{
+ return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS;
+}
+
+static inline int inat_has_modrm(insn_attr_t attr)
+{
+ return attr & INAT_MODRM;
+}
+
+static inline int inat_is_force64(insn_attr_t attr)
+{
+ return attr & INAT_FORCE64;
+}
+
+static inline int inat_has_second_immediate(insn_attr_t attr)
+{
+ return attr & INAT_SCNDIMM;
+}
+
+static inline int inat_has_moffset(insn_attr_t attr)
+{
+ return attr & INAT_MOFFSET;
+}
+
+static inline int inat_has_variant(insn_attr_t attr)
+{
+ return attr & INAT_VARIANT;
+}
+
+static inline int inat_accept_vex(insn_attr_t attr)
+{
+ return attr & INAT_VEXOK;
+}
+
+static inline int inat_must_vex(insn_attr_t attr)
+{
+ return attr & INAT_VEXONLY;
+}
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/inat_types.h b/tools/perf/util/intel-pt-decoder/inat_types.h
new file mode 100644
index 000000000000..cb3c20ce39cf
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/inat_types.h
@@ -0,0 +1,29 @@
+#ifndef _ASM_X86_INAT_TYPES_H
+#define _ASM_X86_INAT_TYPES_H
+/*
+ * x86 instruction attributes
+ *
+ * Written by Masami Hiramatsu <mhiramat@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+/* Instruction attributes */
+typedef unsigned int insn_attr_t;
+typedef unsigned char insn_byte_t;
+typedef signed int insn_value_t;
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/insn.c b/tools/perf/util/intel-pt-decoder/insn.c
new file mode 100644
index 000000000000..47314a64399c
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/insn.c
@@ -0,0 +1,594 @@
+/*
+ * x86 instruction analysis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2002, 2004, 2009
+ */
+
+#ifdef __KERNEL__
+#include <linux/string.h>
+#else
+#include <string.h>
+#endif
+#include "inat.h"
+#include "insn.h"
+
+/* Verify next sizeof(t) bytes can be on the same instruction */
+#define validate_next(t, insn, n) \
+ ((insn)->next_byte + sizeof(t) + n <= (insn)->end_kaddr)
+
+#define __get_next(t, insn) \
+ ({ t r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; })
+
+#define __peek_nbyte_next(t, insn, n) \
+ ({ t r = *(t*)((insn)->next_byte + n); r; })
+
+#define get_next(t, insn) \
+ ({ if (unlikely(!validate_next(t, insn, 0))) goto err_out; __get_next(t, insn); })
+
+#define peek_nbyte_next(t, insn, n) \
+ ({ if (unlikely(!validate_next(t, insn, n))) goto err_out; __peek_nbyte_next(t, insn, n); })
+
+#define peek_next(t, insn) peek_nbyte_next(t, insn, 0)
+
+/**
+ * insn_init() - initialize struct insn
+ * @insn: &struct insn to be initialized
+ * @kaddr: address (in kernel memory) of instruction (or copy thereof)
+ * @x86_64: !0 for 64-bit kernel or 64-bit app
+ */
+void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64)
+{
+ /*
+ * Instructions longer than MAX_INSN_SIZE (15 bytes) are invalid
+ * even if the input buffer is long enough to hold them.
+ */
+ if (buf_len > MAX_INSN_SIZE)
+ buf_len = MAX_INSN_SIZE;
+
+ memset(insn, 0, sizeof(*insn));
+ insn->kaddr = kaddr;
+ insn->end_kaddr = kaddr + buf_len;
+ insn->next_byte = kaddr;
+ insn->x86_64 = x86_64 ? 1 : 0;
+ insn->opnd_bytes = 4;
+ if (x86_64)
+ insn->addr_bytes = 8;
+ else
+ insn->addr_bytes = 4;
+}
+
+/**
+ * insn_get_prefixes - scan x86 instruction prefix bytes
+ * @insn: &struct insn containing instruction
+ *
+ * Populates the @insn->prefixes bitmap, and updates @insn->next_byte
+ * to point to the (first) opcode. No effect if @insn->prefixes.got
+ * is already set.
+ */
+void insn_get_prefixes(struct insn *insn)
+{
+ struct insn_field *prefixes = &insn->prefixes;
+ insn_attr_t attr;
+ insn_byte_t b, lb;
+ int i, nb;
+
+ if (prefixes->got)
+ return;
+
+ nb = 0;
+ lb = 0;
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ while (inat_is_legacy_prefix(attr)) {
+ /* Skip if same prefix */
+ for (i = 0; i < nb; i++)
+ if (prefixes->bytes[i] == b)
+ goto found;
+ if (nb == 4)
+ /* Invalid instruction */
+ break;
+ prefixes->bytes[nb++] = b;
+ if (inat_is_address_size_prefix(attr)) {
+ /* address size switches 2/4 or 4/8 */
+ if (insn->x86_64)
+ insn->addr_bytes ^= 12;
+ else
+ insn->addr_bytes ^= 6;
+ } else if (inat_is_operand_size_prefix(attr)) {
+ /* oprand size switches 2/4 */
+ insn->opnd_bytes ^= 6;
+ }
+found:
+ prefixes->nbytes++;
+ insn->next_byte++;
+ lb = b;
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ }
+ /* Set the last prefix */
+ if (lb && lb != insn->prefixes.bytes[3]) {
+ if (unlikely(insn->prefixes.bytes[3])) {
+ /* Swap the last prefix */
+ b = insn->prefixes.bytes[3];
+ for (i = 0; i < nb; i++)
+ if (prefixes->bytes[i] == lb)
+ prefixes->bytes[i] = b;
+ }
+ insn->prefixes.bytes[3] = lb;
+ }
+
+ /* Decode REX prefix */
+ if (insn->x86_64) {
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ if (inat_is_rex_prefix(attr)) {
+ insn->rex_prefix.value = b;
+ insn->rex_prefix.nbytes = 1;
+ insn->next_byte++;
+ if (X86_REX_W(b))
+ /* REX.W overrides opnd_size */
+ insn->opnd_bytes = 8;
+ }
+ }
+ insn->rex_prefix.got = 1;
+
+ /* Decode VEX prefix */
+ b = peek_next(insn_byte_t, insn);
+ attr = inat_get_opcode_attribute(b);
+ if (inat_is_vex_prefix(attr)) {
+ insn_byte_t b2 = peek_nbyte_next(insn_byte_t, insn, 1);
+ if (!insn->x86_64) {
+ /*
+ * In 32-bits mode, if the [7:6] bits (mod bits of
+ * ModRM) on the second byte are not 11b, it is
+ * LDS or LES.
+ */
+ if (X86_MODRM_MOD(b2) != 3)
+ goto vex_end;
+ }
+ insn->vex_prefix.bytes[0] = b;
+ insn->vex_prefix.bytes[1] = b2;
+ if (inat_is_vex3_prefix(attr)) {
+ b2 = peek_nbyte_next(insn_byte_t, insn, 2);
+ insn->vex_prefix.bytes[2] = b2;
+ insn->vex_prefix.nbytes = 3;
+ insn->next_byte += 3;
+ if (insn->x86_64 && X86_VEX_W(b2))
+ /* VEX.W overrides opnd_size */
+ insn->opnd_bytes = 8;
+ } else {
+ /*
+ * For VEX2, fake VEX3-like byte#2.
+ * Makes it easier to decode vex.W, vex.vvvv,
+ * vex.L and vex.pp. Masking with 0x7f sets vex.W == 0.
+ */
+ insn->vex_prefix.bytes[2] = b2 & 0x7f;
+ insn->vex_prefix.nbytes = 2;
+ insn->next_byte += 2;
+ }
+ }
+vex_end:
+ insn->vex_prefix.got = 1;
+
+ prefixes->got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_opcode - collect opcode(s)
+ * @insn: &struct insn containing instruction
+ *
+ * Populates @insn->opcode, updates @insn->next_byte to point past the
+ * opcode byte(s), and set @insn->attr (except for groups).
+ * If necessary, first collects any preceding (prefix) bytes.
+ * Sets @insn->opcode.value = opcode1. No effect if @insn->opcode.got
+ * is already 1.
+ */
+void insn_get_opcode(struct insn *insn)
+{
+ struct insn_field *opcode = &insn->opcode;
+ insn_byte_t op;
+ int pfx_id;
+ if (opcode->got)
+ return;
+ if (!insn->prefixes.got)
+ insn_get_prefixes(insn);
+
+ /* Get first opcode */
+ op = get_next(insn_byte_t, insn);
+ opcode->bytes[0] = op;
+ opcode->nbytes = 1;
+
+ /* Check if there is VEX prefix or not */
+ if (insn_is_avx(insn)) {
+ insn_byte_t m, p;
+ m = insn_vex_m_bits(insn);
+ p = insn_vex_p_bits(insn);
+ insn->attr = inat_get_avx_attribute(op, m, p);
+ if (!inat_accept_vex(insn->attr) && !inat_is_group(insn->attr))
+ insn->attr = 0; /* This instruction is bad */
+ goto end; /* VEX has only 1 byte for opcode */
+ }
+
+ insn->attr = inat_get_opcode_attribute(op);
+ while (inat_is_escape(insn->attr)) {
+ /* Get escaped opcode */
+ op = get_next(insn_byte_t, insn);
+ opcode->bytes[opcode->nbytes++] = op;
+ pfx_id = insn_last_prefix_id(insn);
+ insn->attr = inat_get_escape_attribute(op, pfx_id, insn->attr);
+ }
+ if (inat_must_vex(insn->attr))
+ insn->attr = 0; /* This instruction is bad */
+end:
+ opcode->got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_modrm - collect ModRM byte, if any
+ * @insn: &struct insn containing instruction
+ *
+ * Populates @insn->modrm and updates @insn->next_byte to point past the
+ * ModRM byte, if any. If necessary, first collects the preceding bytes
+ * (prefixes and opcode(s)). No effect if @insn->modrm.got is already 1.
+ */
+void insn_get_modrm(struct insn *insn)
+{
+ struct insn_field *modrm = &insn->modrm;
+ insn_byte_t pfx_id, mod;
+ if (modrm->got)
+ return;
+ if (!insn->opcode.got)
+ insn_get_opcode(insn);
+
+ if (inat_has_modrm(insn->attr)) {
+ mod = get_next(insn_byte_t, insn);
+ modrm->value = mod;
+ modrm->nbytes = 1;
+ if (inat_is_group(insn->attr)) {
+ pfx_id = insn_last_prefix_id(insn);
+ insn->attr = inat_get_group_attribute(mod, pfx_id,
+ insn->attr);
+ if (insn_is_avx(insn) && !inat_accept_vex(insn->attr))
+ insn->attr = 0; /* This is bad */
+ }
+ }
+
+ if (insn->x86_64 && inat_is_force64(insn->attr))
+ insn->opnd_bytes = 8;
+ modrm->got = 1;
+
+err_out:
+ return;
+}
+
+
+/**
+ * insn_rip_relative() - Does instruction use RIP-relative addressing mode?
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * ModRM byte. No effect if @insn->x86_64 is 0.
+ */
+int insn_rip_relative(struct insn *insn)
+{
+ struct insn_field *modrm = &insn->modrm;
+
+ if (!insn->x86_64)
+ return 0;
+ if (!modrm->got)
+ insn_get_modrm(insn);
+ /*
+ * For rip-relative instructions, the mod field (top 2 bits)
+ * is zero and the r/m field (bottom 3 bits) is 0x5.
+ */
+ return (modrm->nbytes && (modrm->value & 0xc7) == 0x5);
+}
+
+/**
+ * insn_get_sib() - Get the SIB byte of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * ModRM byte.
+ */
+void insn_get_sib(struct insn *insn)
+{
+ insn_byte_t modrm;
+
+ if (insn->sib.got)
+ return;
+ if (!insn->modrm.got)
+ insn_get_modrm(insn);
+ if (insn->modrm.nbytes) {
+ modrm = (insn_byte_t)insn->modrm.value;
+ if (insn->addr_bytes != 2 &&
+ X86_MODRM_MOD(modrm) != 3 && X86_MODRM_RM(modrm) == 4) {
+ insn->sib.value = get_next(insn_byte_t, insn);
+ insn->sib.nbytes = 1;
+ }
+ }
+ insn->sib.got = 1;
+
+err_out:
+ return;
+}
+
+
+/**
+ * insn_get_displacement() - Get the displacement of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * SIB byte.
+ * Displacement value is sign-expanded.
+ */
+void insn_get_displacement(struct insn *insn)
+{
+ insn_byte_t mod, rm, base;
+
+ if (insn->displacement.got)
+ return;
+ if (!insn->sib.got)
+ insn_get_sib(insn);
+ if (insn->modrm.nbytes) {
+ /*
+ * Interpreting the modrm byte:
+ * mod = 00 - no displacement fields (exceptions below)
+ * mod = 01 - 1-byte displacement field
+ * mod = 10 - displacement field is 4 bytes, or 2 bytes if
+ * address size = 2 (0x67 prefix in 32-bit mode)
+ * mod = 11 - no memory operand
+ *
+ * If address size = 2...
+ * mod = 00, r/m = 110 - displacement field is 2 bytes
+ *
+ * If address size != 2...
+ * mod != 11, r/m = 100 - SIB byte exists
+ * mod = 00, SIB base = 101 - displacement field is 4 bytes
+ * mod = 00, r/m = 101 - rip-relative addressing, displacement
+ * field is 4 bytes
+ */
+ mod = X86_MODRM_MOD(insn->modrm.value);
+ rm = X86_MODRM_RM(insn->modrm.value);
+ base = X86_SIB_BASE(insn->sib.value);
+ if (mod == 3)
+ goto out;
+ if (mod == 1) {
+ insn->displacement.value = get_next(char, insn);
+ insn->displacement.nbytes = 1;
+ } else if (insn->addr_bytes == 2) {
+ if ((mod == 0 && rm == 6) || mod == 2) {
+ insn->displacement.value =
+ get_next(short, insn);
+ insn->displacement.nbytes = 2;
+ }
+ } else {
+ if ((mod == 0 && rm == 5) || mod == 2 ||
+ (mod == 0 && base == 5)) {
+ insn->displacement.value = get_next(int, insn);
+ insn->displacement.nbytes = 4;
+ }
+ }
+ }
+out:
+ insn->displacement.got = 1;
+
+err_out:
+ return;
+}
+
+/* Decode moffset16/32/64. Return 0 if failed */
+static int __get_moffset(struct insn *insn)
+{
+ switch (insn->addr_bytes) {
+ case 2:
+ insn->moffset1.value = get_next(short, insn);
+ insn->moffset1.nbytes = 2;
+ break;
+ case 4:
+ insn->moffset1.value = get_next(int, insn);
+ insn->moffset1.nbytes = 4;
+ break;
+ case 8:
+ insn->moffset1.value = get_next(int, insn);
+ insn->moffset1.nbytes = 4;
+ insn->moffset2.value = get_next(int, insn);
+ insn->moffset2.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->moffset1.got = insn->moffset2.got = 1;
+
+ return 1;
+
+err_out:
+ return 0;
+}
+
+/* Decode imm v32(Iz). Return 0 if failed */
+static int __get_immv32(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate.value = get_next(short, insn);
+ insn->immediate.nbytes = 2;
+ break;
+ case 4:
+ case 8:
+ insn->immediate.value = get_next(int, insn);
+ insn->immediate.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+
+ return 1;
+
+err_out:
+ return 0;
+}
+
+/* Decode imm v64(Iv/Ov), Return 0 if failed */
+static int __get_immv(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate1.value = get_next(short, insn);
+ insn->immediate1.nbytes = 2;
+ break;
+ case 4:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ break;
+ case 8:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ insn->immediate2.value = get_next(int, insn);
+ insn->immediate2.nbytes = 4;
+ break;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->immediate1.got = insn->immediate2.got = 1;
+
+ return 1;
+err_out:
+ return 0;
+}
+
+/* Decode ptr16:16/32(Ap) */
+static int __get_immptr(struct insn *insn)
+{
+ switch (insn->opnd_bytes) {
+ case 2:
+ insn->immediate1.value = get_next(short, insn);
+ insn->immediate1.nbytes = 2;
+ break;
+ case 4:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ break;
+ case 8:
+ /* ptr16:64 is not exist (no segment) */
+ return 0;
+ default: /* opnd_bytes must be modified manually */
+ goto err_out;
+ }
+ insn->immediate2.value = get_next(unsigned short, insn);
+ insn->immediate2.nbytes = 2;
+ insn->immediate1.got = insn->immediate2.got = 1;
+
+ return 1;
+err_out:
+ return 0;
+}
+
+/**
+ * insn_get_immediate() - Get the immediates of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * displacement bytes.
+ * Basically, most of immediates are sign-expanded. Unsigned-value can be
+ * get by bit masking with ((1 << (nbytes * 8)) - 1)
+ */
+void insn_get_immediate(struct insn *insn)
+{
+ if (insn->immediate.got)
+ return;
+ if (!insn->displacement.got)
+ insn_get_displacement(insn);
+
+ if (inat_has_moffset(insn->attr)) {
+ if (!__get_moffset(insn))
+ goto err_out;
+ goto done;
+ }
+
+ if (!inat_has_immediate(insn->attr))
+ /* no immediates */
+ goto done;
+
+ switch (inat_immediate_size(insn->attr)) {
+ case INAT_IMM_BYTE:
+ insn->immediate.value = get_next(char, insn);
+ insn->immediate.nbytes = 1;
+ break;
+ case INAT_IMM_WORD:
+ insn->immediate.value = get_next(short, insn);
+ insn->immediate.nbytes = 2;
+ break;
+ case INAT_IMM_DWORD:
+ insn->immediate.value = get_next(int, insn);
+ insn->immediate.nbytes = 4;
+ break;
+ case INAT_IMM_QWORD:
+ insn->immediate1.value = get_next(int, insn);
+ insn->immediate1.nbytes = 4;
+ insn->immediate2.value = get_next(int, insn);
+ insn->immediate2.nbytes = 4;
+ break;
+ case INAT_IMM_PTR:
+ if (!__get_immptr(insn))
+ goto err_out;
+ break;
+ case INAT_IMM_VWORD32:
+ if (!__get_immv32(insn))
+ goto err_out;
+ break;
+ case INAT_IMM_VWORD:
+ if (!__get_immv(insn))
+ goto err_out;
+ break;
+ default:
+ /* Here, insn must have an immediate, but failed */
+ goto err_out;
+ }
+ if (inat_has_second_immediate(insn->attr)) {
+ insn->immediate2.value = get_next(char, insn);
+ insn->immediate2.nbytes = 1;
+ }
+done:
+ insn->immediate.got = 1;
+
+err_out:
+ return;
+}
+
+/**
+ * insn_get_length() - Get the length of instruction
+ * @insn: &struct insn containing instruction
+ *
+ * If necessary, first collects the instruction up to and including the
+ * immediates bytes.
+ */
+void insn_get_length(struct insn *insn)
+{
+ if (insn->length)
+ return;
+ if (!insn->immediate.got)
+ insn_get_immediate(insn);
+ insn->length = (unsigned char)((unsigned long)insn->next_byte
+ - (unsigned long)insn->kaddr);
+}
diff --git a/tools/perf/util/intel-pt-decoder/insn.h b/tools/perf/util/intel-pt-decoder/insn.h
new file mode 100644
index 000000000000..dd12da0f4593
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/insn.h
@@ -0,0 +1,201 @@
+#ifndef _ASM_X86_INSN_H
+#define _ASM_X86_INSN_H
+/*
+ * x86 instruction analysis
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2009
+ */
+
+/* insn_attr_t is defined in inat.h */
+#include "inat.h"
+
+struct insn_field {
+ union {
+ insn_value_t value;
+ insn_byte_t bytes[4];
+ };
+ /* !0 if we've run insn_get_xxx() for this field */
+ unsigned char got;
+ unsigned char nbytes;
+};
+
+struct insn {
+ struct insn_field prefixes; /*
+ * Prefixes
+ * prefixes.bytes[3]: last prefix
+ */
+ struct insn_field rex_prefix; /* REX prefix */
+ struct insn_field vex_prefix; /* VEX prefix */
+ struct insn_field opcode; /*
+ * opcode.bytes[0]: opcode1
+ * opcode.bytes[1]: opcode2
+ * opcode.bytes[2]: opcode3
+ */
+ struct insn_field modrm;
+ struct insn_field sib;
+ struct insn_field displacement;
+ union {
+ struct insn_field immediate;
+ struct insn_field moffset1; /* for 64bit MOV */
+ struct insn_field immediate1; /* for 64bit imm or off16/32 */
+ };
+ union {
+ struct insn_field moffset2; /* for 64bit MOV */
+ struct insn_field immediate2; /* for 64bit imm or seg16 */
+ };
+
+ insn_attr_t attr;
+ unsigned char opnd_bytes;
+ unsigned char addr_bytes;
+ unsigned char length;
+ unsigned char x86_64;
+
+ const insn_byte_t *kaddr; /* kernel address of insn to analyze */
+ const insn_byte_t *end_kaddr; /* kernel address of last insn in buffer */
+ const insn_byte_t *next_byte;
+};
+
+#define MAX_INSN_SIZE 15
+
+#define X86_MODRM_MOD(modrm) (((modrm) & 0xc0) >> 6)
+#define X86_MODRM_REG(modrm) (((modrm) & 0x38) >> 3)
+#define X86_MODRM_RM(modrm) ((modrm) & 0x07)
+
+#define X86_SIB_SCALE(sib) (((sib) & 0xc0) >> 6)
+#define X86_SIB_INDEX(sib) (((sib) & 0x38) >> 3)
+#define X86_SIB_BASE(sib) ((sib) & 0x07)
+
+#define X86_REX_W(rex) ((rex) & 8)
+#define X86_REX_R(rex) ((rex) & 4)
+#define X86_REX_X(rex) ((rex) & 2)
+#define X86_REX_B(rex) ((rex) & 1)
+
+/* VEX bit flags */
+#define X86_VEX_W(vex) ((vex) & 0x80) /* VEX3 Byte2 */
+#define X86_VEX_R(vex) ((vex) & 0x80) /* VEX2/3 Byte1 */
+#define X86_VEX_X(vex) ((vex) & 0x40) /* VEX3 Byte1 */
+#define X86_VEX_B(vex) ((vex) & 0x20) /* VEX3 Byte1 */
+#define X86_VEX_L(vex) ((vex) & 0x04) /* VEX3 Byte2, VEX2 Byte1 */
+/* VEX bit fields */
+#define X86_VEX3_M(vex) ((vex) & 0x1f) /* VEX3 Byte1 */
+#define X86_VEX2_M 1 /* VEX2.M always 1 */
+#define X86_VEX_V(vex) (((vex) & 0x78) >> 3) /* VEX3 Byte2, VEX2 Byte1 */
+#define X86_VEX_P(vex) ((vex) & 0x03) /* VEX3 Byte2, VEX2 Byte1 */
+#define X86_VEX_M_MAX 0x1f /* VEX3.M Maximum value */
+
+extern void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64);
+extern void insn_get_prefixes(struct insn *insn);
+extern void insn_get_opcode(struct insn *insn);
+extern void insn_get_modrm(struct insn *insn);
+extern void insn_get_sib(struct insn *insn);
+extern void insn_get_displacement(struct insn *insn);
+extern void insn_get_immediate(struct insn *insn);
+extern void insn_get_length(struct insn *insn);
+
+/* Attribute will be determined after getting ModRM (for opcode groups) */
+static inline void insn_get_attribute(struct insn *insn)
+{
+ insn_get_modrm(insn);
+}
+
+/* Instruction uses RIP-relative addressing */
+extern int insn_rip_relative(struct insn *insn);
+
+/* Init insn for kernel text */
+static inline void kernel_insn_init(struct insn *insn,
+ const void *kaddr, int buf_len)
+{
+#ifdef CONFIG_X86_64
+ insn_init(insn, kaddr, buf_len, 1);
+#else /* CONFIG_X86_32 */
+ insn_init(insn, kaddr, buf_len, 0);
+#endif
+}
+
+static inline int insn_is_avx(struct insn *insn)
+{
+ if (!insn->prefixes.got)
+ insn_get_prefixes(insn);
+ return (insn->vex_prefix.value != 0);
+}
+
+/* Ensure this instruction is decoded completely */
+static inline int insn_complete(struct insn *insn)
+{
+ return insn->opcode.got && insn->modrm.got && insn->sib.got &&
+ insn->displacement.got && insn->immediate.got;
+}
+
+static inline insn_byte_t insn_vex_m_bits(struct insn *insn)
+{
+ if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
+ return X86_VEX2_M;
+ else
+ return X86_VEX3_M(insn->vex_prefix.bytes[1]);
+}
+
+static inline insn_byte_t insn_vex_p_bits(struct insn *insn)
+{
+ if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
+ return X86_VEX_P(insn->vex_prefix.bytes[1]);
+ else
+ return X86_VEX_P(insn->vex_prefix.bytes[2]);
+}
+
+/* Get the last prefix id from last prefix or VEX prefix */
+static inline int insn_last_prefix_id(struct insn *insn)
+{
+ if (insn_is_avx(insn))
+ return insn_vex_p_bits(insn); /* VEX_p is a SIMD prefix id */
+
+ if (insn->prefixes.bytes[3])
+ return inat_get_last_prefix_id(insn->prefixes.bytes[3]);
+
+ return 0;
+}
+
+/* Offset of each field from kaddr */
+static inline int insn_offset_rex_prefix(struct insn *insn)
+{
+ return insn->prefixes.nbytes;
+}
+static inline int insn_offset_vex_prefix(struct insn *insn)
+{
+ return insn_offset_rex_prefix(insn) + insn->rex_prefix.nbytes;
+}
+static inline int insn_offset_opcode(struct insn *insn)
+{
+ return insn_offset_vex_prefix(insn) + insn->vex_prefix.nbytes;
+}
+static inline int insn_offset_modrm(struct insn *insn)
+{
+ return insn_offset_opcode(insn) + insn->opcode.nbytes;
+}
+static inline int insn_offset_sib(struct insn *insn)
+{
+ return insn_offset_modrm(insn) + insn->modrm.nbytes;
+}
+static inline int insn_offset_displacement(struct insn *insn)
+{
+ return insn_offset_sib(insn) + insn->sib.nbytes;
+}
+static inline int insn_offset_immediate(struct insn *insn)
+{
+ return insn_offset_displacement(insn) + insn->displacement.nbytes;
+}
+
+#endif /* _ASM_X86_INSN_H */
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
new file mode 100644
index 000000000000..22ba50224319
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
@@ -0,0 +1,2345 @@
+/*
+ * intel_pt_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "../cache.h"
+#include "../util.h"
+
+#include "intel-pt-insn-decoder.h"
+#include "intel-pt-pkt-decoder.h"
+#include "intel-pt-decoder.h"
+#include "intel-pt-log.h"
+
+#define INTEL_PT_BLK_SIZE 1024
+
+#define BIT63 (((uint64_t)1 << 63))
+
+#define INTEL_PT_RETURN 1
+
+/* Maximum number of loops with no packets consumed i.e. stuck in a loop */
+#define INTEL_PT_MAX_LOOPS 10000
+
+struct intel_pt_blk {
+ struct intel_pt_blk *prev;
+ uint64_t ip[INTEL_PT_BLK_SIZE];
+};
+
+struct intel_pt_stack {
+ struct intel_pt_blk *blk;
+ struct intel_pt_blk *spare;
+ int pos;
+};
+
+enum intel_pt_pkt_state {
+ INTEL_PT_STATE_NO_PSB,
+ INTEL_PT_STATE_NO_IP,
+ INTEL_PT_STATE_ERR_RESYNC,
+ INTEL_PT_STATE_IN_SYNC,
+ INTEL_PT_STATE_TNT,
+ INTEL_PT_STATE_TIP,
+ INTEL_PT_STATE_TIP_PGD,
+ INTEL_PT_STATE_FUP,
+ INTEL_PT_STATE_FUP_NO_TIP,
+};
+
+#ifdef INTEL_PT_STRICT
+#define INTEL_PT_STATE_ERR1 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR2 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR3 INTEL_PT_STATE_NO_PSB
+#define INTEL_PT_STATE_ERR4 INTEL_PT_STATE_NO_PSB
+#else
+#define INTEL_PT_STATE_ERR1 (decoder->pkt_state)
+#define INTEL_PT_STATE_ERR2 INTEL_PT_STATE_NO_IP
+#define INTEL_PT_STATE_ERR3 INTEL_PT_STATE_ERR_RESYNC
+#define INTEL_PT_STATE_ERR4 INTEL_PT_STATE_IN_SYNC
+#endif
+
+struct intel_pt_decoder {
+ int (*get_trace)(struct intel_pt_buffer *buffer, void *data);
+ int (*walk_insn)(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip,
+ uint64_t max_insn_cnt, void *data);
+ void *data;
+ struct intel_pt_state state;
+ const unsigned char *buf;
+ size_t len;
+ bool return_compression;
+ bool mtc_insn;
+ bool pge;
+ bool have_tma;
+ bool have_cyc;
+ uint64_t pos;
+ uint64_t last_ip;
+ uint64_t ip;
+ uint64_t cr3;
+ uint64_t timestamp;
+ uint64_t tsc_timestamp;
+ uint64_t ref_timestamp;
+ uint64_t ret_addr;
+ uint64_t ctc_timestamp;
+ uint64_t ctc_delta;
+ uint64_t cycle_cnt;
+ uint64_t cyc_ref_timestamp;
+ uint32_t last_mtc;
+ uint32_t tsc_ctc_ratio_n;
+ uint32_t tsc_ctc_ratio_d;
+ uint32_t tsc_ctc_mult;
+ uint32_t tsc_slip;
+ uint32_t ctc_rem_mask;
+ int mtc_shift;
+ struct intel_pt_stack stack;
+ enum intel_pt_pkt_state pkt_state;
+ struct intel_pt_pkt packet;
+ struct intel_pt_pkt tnt;
+ int pkt_step;
+ int pkt_len;
+ int last_packet_type;
+ unsigned int cbr;
+ unsigned int max_non_turbo_ratio;
+ double max_non_turbo_ratio_fp;
+ double cbr_cyc_to_tsc;
+ double calc_cyc_to_tsc;
+ bool have_calc_cyc_to_tsc;
+ int exec_mode;
+ unsigned int insn_bytes;
+ uint64_t sign_bit;
+ uint64_t sign_bits;
+ uint64_t period;
+ enum intel_pt_period_type period_type;
+ uint64_t tot_insn_cnt;
+ uint64_t period_insn_cnt;
+ uint64_t period_mask;
+ uint64_t period_ticks;
+ uint64_t last_masked_timestamp;
+ bool continuous_period;
+ bool overflow;
+ bool set_fup_tx_flags;
+ unsigned int fup_tx_flags;
+ unsigned int tx_flags;
+ uint64_t timestamp_insn_cnt;
+ uint64_t stuck_ip;
+ int no_progress;
+ int stuck_ip_prd;
+ int stuck_ip_cnt;
+ const unsigned char *next_buf;
+ size_t next_len;
+ unsigned char temp_buf[INTEL_PT_PKT_MAX_SZ];
+};
+
+static uint64_t intel_pt_lower_power_of_2(uint64_t x)
+{
+ int i;
+
+ for (i = 0; x != 1; i++)
+ x >>= 1;
+
+ return x << i;
+}
+
+static void intel_pt_setup_period(struct intel_pt_decoder *decoder)
+{
+ if (decoder->period_type == INTEL_PT_PERIOD_TICKS) {
+ uint64_t period;
+
+ period = intel_pt_lower_power_of_2(decoder->period);
+ decoder->period_mask = ~(period - 1);
+ decoder->period_ticks = period;
+ }
+}
+
+static uint64_t multdiv(uint64_t t, uint32_t n, uint32_t d)
+{
+ if (!d)
+ return 0;
+ return (t / d) * n + ((t % d) * n) / d;
+}
+
+struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params)
+{
+ struct intel_pt_decoder *decoder;
+
+ if (!params->get_trace || !params->walk_insn)
+ return NULL;
+
+ decoder = zalloc(sizeof(struct intel_pt_decoder));
+ if (!decoder)
+ return NULL;
+
+ decoder->get_trace = params->get_trace;
+ decoder->walk_insn = params->walk_insn;
+ decoder->data = params->data;
+ decoder->return_compression = params->return_compression;
+
+ decoder->sign_bit = (uint64_t)1 << 47;
+ decoder->sign_bits = ~(((uint64_t)1 << 48) - 1);
+
+ decoder->period = params->period;
+ decoder->period_type = params->period_type;
+
+ decoder->max_non_turbo_ratio = params->max_non_turbo_ratio;
+ decoder->max_non_turbo_ratio_fp = params->max_non_turbo_ratio;
+
+ intel_pt_setup_period(decoder);
+
+ decoder->mtc_shift = params->mtc_period;
+ decoder->ctc_rem_mask = (1 << decoder->mtc_shift) - 1;
+
+ decoder->tsc_ctc_ratio_n = params->tsc_ctc_ratio_n;
+ decoder->tsc_ctc_ratio_d = params->tsc_ctc_ratio_d;
+
+ if (!decoder->tsc_ctc_ratio_n)
+ decoder->tsc_ctc_ratio_d = 0;
+
+ if (decoder->tsc_ctc_ratio_d) {
+ if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
+ decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
+ decoder->tsc_ctc_ratio_d;
+
+ /*
+ * Allow for timestamps appearing to backwards because a TSC
+ * packet has slipped past a MTC packet, so allow 2 MTC ticks
+ * or ...
+ */
+ decoder->tsc_slip = multdiv(2 << decoder->mtc_shift,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+ /* ... or 0x100 paranoia */
+ if (decoder->tsc_slip < 0x100)
+ decoder->tsc_slip = 0x100;
+
+ intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
+ intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);
+ intel_pt_log("timestamp: tsc_ctc_ratio_d %u\n", decoder->tsc_ctc_ratio_d);
+ intel_pt_log("timestamp: tsc_ctc_mult %u\n", decoder->tsc_ctc_mult);
+ intel_pt_log("timestamp: tsc_slip %#x\n", decoder->tsc_slip);
+
+ return decoder;
+}
+
+static void intel_pt_pop_blk(struct intel_pt_stack *stack)
+{
+ struct intel_pt_blk *blk = stack->blk;
+
+ stack->blk = blk->prev;
+ if (!stack->spare)
+ stack->spare = blk;
+ else
+ free(blk);
+}
+
+static uint64_t intel_pt_pop(struct intel_pt_stack *stack)
+{
+ if (!stack->pos) {
+ if (!stack->blk)
+ return 0;
+ intel_pt_pop_blk(stack);
+ if (!stack->blk)
+ return 0;
+ stack->pos = INTEL_PT_BLK_SIZE;
+ }
+ return stack->blk->ip[--stack->pos];
+}
+
+static int intel_pt_alloc_blk(struct intel_pt_stack *stack)
+{
+ struct intel_pt_blk *blk;
+
+ if (stack->spare) {
+ blk = stack->spare;
+ stack->spare = NULL;
+ } else {
+ blk = malloc(sizeof(struct intel_pt_blk));
+ if (!blk)
+ return -ENOMEM;
+ }
+
+ blk->prev = stack->blk;
+ stack->blk = blk;
+ stack->pos = 0;
+ return 0;
+}
+
+static int intel_pt_push(struct intel_pt_stack *stack, uint64_t ip)
+{
+ int err;
+
+ if (!stack->blk || stack->pos == INTEL_PT_BLK_SIZE) {
+ err = intel_pt_alloc_blk(stack);
+ if (err)
+ return err;
+ }
+
+ stack->blk->ip[stack->pos++] = ip;
+ return 0;
+}
+
+static void intel_pt_clear_stack(struct intel_pt_stack *stack)
+{
+ while (stack->blk)
+ intel_pt_pop_blk(stack);
+ stack->pos = 0;
+}
+
+static void intel_pt_free_stack(struct intel_pt_stack *stack)
+{
+ intel_pt_clear_stack(stack);
+ zfree(&stack->blk);
+ zfree(&stack->spare);
+}
+
+void intel_pt_decoder_free(struct intel_pt_decoder *decoder)
+{
+ intel_pt_free_stack(&decoder->stack);
+ free(decoder);
+}
+
+static int intel_pt_ext_err(int code)
+{
+ switch (code) {
+ case -ENOMEM:
+ return INTEL_PT_ERR_NOMEM;
+ case -ENOSYS:
+ return INTEL_PT_ERR_INTERN;
+ case -EBADMSG:
+ return INTEL_PT_ERR_BADPKT;
+ case -ENODATA:
+ return INTEL_PT_ERR_NODATA;
+ case -EILSEQ:
+ return INTEL_PT_ERR_NOINSN;
+ case -ENOENT:
+ return INTEL_PT_ERR_MISMAT;
+ case -EOVERFLOW:
+ return INTEL_PT_ERR_OVR;
+ case -ENOSPC:
+ return INTEL_PT_ERR_LOST;
+ case -ELOOP:
+ return INTEL_PT_ERR_NELOOP;
+ default:
+ return INTEL_PT_ERR_UNK;
+ }
+}
+
+static const char *intel_pt_err_msgs[] = {
+ [INTEL_PT_ERR_NOMEM] = "Memory allocation failed",
+ [INTEL_PT_ERR_INTERN] = "Internal error",
+ [INTEL_PT_ERR_BADPKT] = "Bad packet",
+ [INTEL_PT_ERR_NODATA] = "No more data",
+ [INTEL_PT_ERR_NOINSN] = "Failed to get instruction",
+ [INTEL_PT_ERR_MISMAT] = "Trace doesn't match instruction",
+ [INTEL_PT_ERR_OVR] = "Overflow packet",
+ [INTEL_PT_ERR_LOST] = "Lost trace data",
+ [INTEL_PT_ERR_UNK] = "Unknown error!",
+ [INTEL_PT_ERR_NELOOP] = "Never-ending loop",
+};
+
+int intel_pt__strerror(int code, char *buf, size_t buflen)
+{
+ if (code < 1 || code > INTEL_PT_ERR_MAX)
+ code = INTEL_PT_ERR_UNK;
+ strlcpy(buf, intel_pt_err_msgs[code], buflen);
+ return 0;
+}
+
+static uint64_t intel_pt_calc_ip(struct intel_pt_decoder *decoder,
+ const struct intel_pt_pkt *packet,
+ uint64_t last_ip)
+{
+ uint64_t ip;
+
+ switch (packet->count) {
+ case 2:
+ ip = (last_ip & (uint64_t)0xffffffffffff0000ULL) |
+ packet->payload;
+ break;
+ case 4:
+ ip = (last_ip & (uint64_t)0xffffffff00000000ULL) |
+ packet->payload;
+ break;
+ case 6:
+ ip = packet->payload;
+ break;
+ default:
+ return 0;
+ }
+
+ if (ip & decoder->sign_bit)
+ return ip | decoder->sign_bits;
+
+ return ip;
+}
+
+static inline void intel_pt_set_last_ip(struct intel_pt_decoder *decoder)
+{
+ decoder->last_ip = intel_pt_calc_ip(decoder, &decoder->packet,
+ decoder->last_ip);
+}
+
+static inline void intel_pt_set_ip(struct intel_pt_decoder *decoder)
+{
+ intel_pt_set_last_ip(decoder);
+ decoder->ip = decoder->last_ip;
+}
+
+static void intel_pt_decoder_log_packet(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log_packet(&decoder->packet, decoder->pkt_len, decoder->pos,
+ decoder->buf);
+}
+
+static int intel_pt_bug(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log("ERROR: Internal error\n");
+ decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
+ return -ENOSYS;
+}
+
+static inline void intel_pt_clear_tx_flags(struct intel_pt_decoder *decoder)
+{
+ decoder->tx_flags = 0;
+}
+
+static inline void intel_pt_update_in_tx(struct intel_pt_decoder *decoder)
+{
+ decoder->tx_flags = decoder->packet.payload & INTEL_PT_IN_TX;
+}
+
+static int intel_pt_bad_packet(struct intel_pt_decoder *decoder)
+{
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ decoder->pkt_len = 1;
+ decoder->pkt_step = 1;
+ intel_pt_decoder_log_packet(decoder);
+ if (decoder->pkt_state != INTEL_PT_STATE_NO_PSB) {
+ intel_pt_log("ERROR: Bad packet\n");
+ decoder->pkt_state = INTEL_PT_STATE_ERR1;
+ }
+ return -EBADMSG;
+}
+
+static int intel_pt_get_data(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_buffer buffer = { .buf = 0, };
+ int ret;
+
+ decoder->pkt_step = 0;
+
+ intel_pt_log("Getting more data\n");
+ ret = decoder->get_trace(&buffer, decoder->data);
+ if (ret)
+ return ret;
+ decoder->buf = buffer.buf;
+ decoder->len = buffer.len;
+ if (!decoder->len) {
+ intel_pt_log("No more data\n");
+ return -ENODATA;
+ }
+ if (!buffer.consecutive) {
+ decoder->ip = 0;
+ decoder->pkt_state = INTEL_PT_STATE_NO_PSB;
+ decoder->ref_timestamp = buffer.ref_timestamp;
+ decoder->timestamp = 0;
+ decoder->have_tma = false;
+ decoder->state.trace_nr = buffer.trace_nr;
+ intel_pt_log("Reference timestamp 0x%" PRIx64 "\n",
+ decoder->ref_timestamp);
+ return -ENOLINK;
+ }
+
+ return 0;
+}
+
+static int intel_pt_get_next_data(struct intel_pt_decoder *decoder)
+{
+ if (!decoder->next_buf)
+ return intel_pt_get_data(decoder);
+
+ decoder->buf = decoder->next_buf;
+ decoder->len = decoder->next_len;
+ decoder->next_buf = 0;
+ decoder->next_len = 0;
+ return 0;
+}
+
+static int intel_pt_get_split_packet(struct intel_pt_decoder *decoder)
+{
+ unsigned char *buf = decoder->temp_buf;
+ size_t old_len, len, n;
+ int ret;
+
+ old_len = decoder->len;
+ len = decoder->len;
+ memcpy(buf, decoder->buf, len);
+
+ ret = intel_pt_get_data(decoder);
+ if (ret) {
+ decoder->pos += old_len;
+ return ret < 0 ? ret : -EINVAL;
+ }
+
+ n = INTEL_PT_PKT_MAX_SZ - len;
+ if (n > decoder->len)
+ n = decoder->len;
+ memcpy(buf + len, decoder->buf, n);
+ len += n;
+
+ ret = intel_pt_get_packet(buf, len, &decoder->packet);
+ if (ret < (int)old_len) {
+ decoder->next_buf = decoder->buf;
+ decoder->next_len = decoder->len;
+ decoder->buf = buf;
+ decoder->len = old_len;
+ return intel_pt_bad_packet(decoder);
+ }
+
+ decoder->next_buf = decoder->buf + (ret - old_len);
+ decoder->next_len = decoder->len - (ret - old_len);
+
+ decoder->buf = buf;
+ decoder->len = ret;
+
+ return ret;
+}
+
+struct intel_pt_pkt_info {
+ struct intel_pt_decoder *decoder;
+ struct intel_pt_pkt packet;
+ uint64_t pos;
+ int pkt_len;
+ int last_packet_type;
+ void *data;
+};
+
+typedef int (*intel_pt_pkt_cb_t)(struct intel_pt_pkt_info *pkt_info);
+
+/* Lookahead packets in current buffer */
+static int intel_pt_pkt_lookahead(struct intel_pt_decoder *decoder,
+ intel_pt_pkt_cb_t cb, void *data)
+{
+ struct intel_pt_pkt_info pkt_info;
+ const unsigned char *buf = decoder->buf;
+ size_t len = decoder->len;
+ int ret;
+
+ pkt_info.decoder = decoder;
+ pkt_info.pos = decoder->pos;
+ pkt_info.pkt_len = decoder->pkt_step;
+ pkt_info.last_packet_type = decoder->last_packet_type;
+ pkt_info.data = data;
+
+ while (1) {
+ do {
+ pkt_info.pos += pkt_info.pkt_len;
+ buf += pkt_info.pkt_len;
+ len -= pkt_info.pkt_len;
+
+ if (!len)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ ret = intel_pt_get_packet(buf, len, &pkt_info.packet);
+ if (!ret)
+ return INTEL_PT_NEED_MORE_BYTES;
+ if (ret < 0)
+ return ret;
+
+ pkt_info.pkt_len = ret;
+ } while (pkt_info.packet.type == INTEL_PT_PAD);
+
+ ret = cb(&pkt_info);
+ if (ret)
+ return 0;
+
+ pkt_info.last_packet_type = pkt_info.packet.type;
+ }
+}
+
+struct intel_pt_calc_cyc_to_tsc_info {
+ uint64_t cycle_cnt;
+ unsigned int cbr;
+ uint32_t last_mtc;
+ uint64_t ctc_timestamp;
+ uint64_t ctc_delta;
+ uint64_t tsc_timestamp;
+ uint64_t timestamp;
+ bool have_tma;
+ bool from_mtc;
+ double cbr_cyc_to_tsc;
+};
+
+static int intel_pt_calc_cyc_cb(struct intel_pt_pkt_info *pkt_info)
+{
+ struct intel_pt_decoder *decoder = pkt_info->decoder;
+ struct intel_pt_calc_cyc_to_tsc_info *data = pkt_info->data;
+ uint64_t timestamp;
+ double cyc_to_tsc;
+ unsigned int cbr;
+ uint32_t mtc, mtc_delta, ctc, fc, ctc_rem;
+
+ switch (pkt_info->packet.type) {
+ case INTEL_PT_TNT:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_FUP:
+ case INTEL_PT_PSB:
+ case INTEL_PT_PIP:
+ case INTEL_PT_MODE_EXEC:
+ case INTEL_PT_MODE_TSX:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_PAD:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ return 0;
+
+ case INTEL_PT_MTC:
+ if (!data->have_tma)
+ return 0;
+
+ mtc = pkt_info->packet.payload;
+ if (mtc > data->last_mtc)
+ mtc_delta = mtc - data->last_mtc;
+ else
+ mtc_delta = mtc + 256 - data->last_mtc;
+ data->ctc_delta += mtc_delta << decoder->mtc_shift;
+ data->last_mtc = mtc;
+
+ if (decoder->tsc_ctc_mult) {
+ timestamp = data->ctc_timestamp +
+ data->ctc_delta * decoder->tsc_ctc_mult;
+ } else {
+ timestamp = data->ctc_timestamp +
+ multdiv(data->ctc_delta,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ if (timestamp < data->timestamp)
+ return 1;
+
+ if (pkt_info->last_packet_type != INTEL_PT_CYC) {
+ data->timestamp = timestamp;
+ return 0;
+ }
+
+ break;
+
+ case INTEL_PT_TSC:
+ timestamp = pkt_info->packet.payload |
+ (data->timestamp & (0xffULL << 56));
+ if (data->from_mtc && timestamp < data->timestamp &&
+ data->timestamp - timestamp < decoder->tsc_slip)
+ return 1;
+ while (timestamp < data->timestamp)
+ timestamp += (1ULL << 56);
+ if (pkt_info->last_packet_type != INTEL_PT_CYC) {
+ if (data->from_mtc)
+ return 1;
+ data->tsc_timestamp = timestamp;
+ data->timestamp = timestamp;
+ return 0;
+ }
+ break;
+
+ case INTEL_PT_TMA:
+ if (data->from_mtc)
+ return 1;
+
+ if (!decoder->tsc_ctc_ratio_d)
+ return 0;
+
+ ctc = pkt_info->packet.payload;
+ fc = pkt_info->packet.count;
+ ctc_rem = ctc & decoder->ctc_rem_mask;
+
+ data->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
+
+ data->ctc_timestamp = data->tsc_timestamp - fc;
+ if (decoder->tsc_ctc_mult) {
+ data->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
+ } else {
+ data->ctc_timestamp -=
+ multdiv(ctc_rem, decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ data->ctc_delta = 0;
+ data->have_tma = true;
+
+ return 0;
+
+ case INTEL_PT_CYC:
+ data->cycle_cnt += pkt_info->packet.payload;
+ return 0;
+
+ case INTEL_PT_CBR:
+ cbr = pkt_info->packet.payload;
+ if (data->cbr && data->cbr != cbr)
+ return 1;
+ data->cbr = cbr;
+ data->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
+ return 0;
+
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_OVF:
+ case INTEL_PT_BAD: /* Does not happen */
+ default:
+ return 1;
+ }
+
+ if (!data->cbr && decoder->cbr) {
+ data->cbr = decoder->cbr;
+ data->cbr_cyc_to_tsc = decoder->cbr_cyc_to_tsc;
+ }
+
+ if (!data->cycle_cnt)
+ return 1;
+
+ cyc_to_tsc = (double)(timestamp - decoder->timestamp) / data->cycle_cnt;
+
+ if (data->cbr && cyc_to_tsc > data->cbr_cyc_to_tsc &&
+ cyc_to_tsc / data->cbr_cyc_to_tsc > 1.25) {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle too big (c.f. CBR-based value %g), pos " x64_fmt "\n",
+ cyc_to_tsc, data->cbr_cyc_to_tsc, pkt_info->pos);
+ return 1;
+ }
+
+ decoder->calc_cyc_to_tsc = cyc_to_tsc;
+ decoder->have_calc_cyc_to_tsc = true;
+
+ if (data->cbr) {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle c.f. CBR-based value %g, pos " x64_fmt "\n",
+ cyc_to_tsc, data->cbr_cyc_to_tsc, pkt_info->pos);
+ } else {
+ intel_pt_log("Timestamp: calculated %g TSC ticks per cycle c.f. unknown CBR-based value, pos " x64_fmt "\n",
+ cyc_to_tsc, pkt_info->pos);
+ }
+
+ return 1;
+}
+
+static void intel_pt_calc_cyc_to_tsc(struct intel_pt_decoder *decoder,
+ bool from_mtc)
+{
+ struct intel_pt_calc_cyc_to_tsc_info data = {
+ .cycle_cnt = 0,
+ .cbr = 0,
+ .last_mtc = decoder->last_mtc,
+ .ctc_timestamp = decoder->ctc_timestamp,
+ .ctc_delta = decoder->ctc_delta,
+ .tsc_timestamp = decoder->tsc_timestamp,
+ .timestamp = decoder->timestamp,
+ .have_tma = decoder->have_tma,
+ .from_mtc = from_mtc,
+ .cbr_cyc_to_tsc = 0,
+ };
+
+ intel_pt_pkt_lookahead(decoder, intel_pt_calc_cyc_cb, &data);
+}
+
+static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder)
+{
+ int ret;
+
+ decoder->last_packet_type = decoder->packet.type;
+
+ do {
+ decoder->pos += decoder->pkt_step;
+ decoder->buf += decoder->pkt_step;
+ decoder->len -= decoder->pkt_step;
+
+ if (!decoder->len) {
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+ }
+
+ ret = intel_pt_get_packet(decoder->buf, decoder->len,
+ &decoder->packet);
+ if (ret == INTEL_PT_NEED_MORE_BYTES &&
+ decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) {
+ ret = intel_pt_get_split_packet(decoder);
+ if (ret < 0)
+ return ret;
+ }
+ if (ret <= 0)
+ return intel_pt_bad_packet(decoder);
+
+ decoder->pkt_len = ret;
+ decoder->pkt_step = ret;
+ intel_pt_decoder_log_packet(decoder);
+ } while (decoder->packet.type == INTEL_PT_PAD);
+
+ return 0;
+}
+
+static uint64_t intel_pt_next_period(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp, masked_timestamp;
+
+ timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
+ masked_timestamp = timestamp & decoder->period_mask;
+ if (decoder->continuous_period) {
+ if (masked_timestamp != decoder->last_masked_timestamp)
+ return 1;
+ } else {
+ timestamp += 1;
+ masked_timestamp = timestamp & decoder->period_mask;
+ if (masked_timestamp != decoder->last_masked_timestamp) {
+ decoder->last_masked_timestamp = masked_timestamp;
+ decoder->continuous_period = true;
+ }
+ }
+ return decoder->period_ticks - (timestamp - masked_timestamp);
+}
+
+static uint64_t intel_pt_next_sample(struct intel_pt_decoder *decoder)
+{
+ switch (decoder->period_type) {
+ case INTEL_PT_PERIOD_INSTRUCTIONS:
+ return decoder->period - decoder->period_insn_cnt;
+ case INTEL_PT_PERIOD_TICKS:
+ return intel_pt_next_period(decoder);
+ case INTEL_PT_PERIOD_NONE:
+ case INTEL_PT_PERIOD_MTC:
+ default:
+ return 0;
+ }
+}
+
+static void intel_pt_sample_insn(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp, masked_timestamp;
+
+ switch (decoder->period_type) {
+ case INTEL_PT_PERIOD_INSTRUCTIONS:
+ decoder->period_insn_cnt = 0;
+ break;
+ case INTEL_PT_PERIOD_TICKS:
+ timestamp = decoder->timestamp + decoder->timestamp_insn_cnt;
+ masked_timestamp = timestamp & decoder->period_mask;
+ decoder->last_masked_timestamp = masked_timestamp;
+ break;
+ case INTEL_PT_PERIOD_NONE:
+ case INTEL_PT_PERIOD_MTC:
+ default:
+ break;
+ }
+
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+}
+
+static int intel_pt_walk_insn(struct intel_pt_decoder *decoder,
+ struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ uint64_t max_insn_cnt, insn_cnt = 0;
+ int err;
+
+ if (!decoder->mtc_insn)
+ decoder->mtc_insn = true;
+
+ max_insn_cnt = intel_pt_next_sample(decoder);
+
+ err = decoder->walk_insn(intel_pt_insn, &insn_cnt, &decoder->ip, ip,
+ max_insn_cnt, decoder->data);
+
+ decoder->tot_insn_cnt += insn_cnt;
+ decoder->timestamp_insn_cnt += insn_cnt;
+ decoder->period_insn_cnt += insn_cnt;
+
+ if (err) {
+ decoder->no_progress = 0;
+ decoder->pkt_state = INTEL_PT_STATE_ERR2;
+ intel_pt_log_at("ERROR: Failed to get instruction",
+ decoder->ip);
+ if (err == -ENOENT)
+ return -ENOLINK;
+ return -EILSEQ;
+ }
+
+ if (ip && decoder->ip == ip) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ if (max_insn_cnt && insn_cnt >= max_insn_cnt)
+ intel_pt_sample_insn(decoder);
+
+ if (intel_pt_insn->branch == INTEL_PT_BR_NO_BRANCH) {
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->ip += intel_pt_insn->length;
+ err = INTEL_PT_RETURN;
+ goto out;
+ }
+
+ if (intel_pt_insn->op == INTEL_PT_OP_CALL) {
+ /* Zero-length calls are excluded */
+ if (intel_pt_insn->branch != INTEL_PT_BR_UNCONDITIONAL ||
+ intel_pt_insn->rel) {
+ err = intel_pt_push(&decoder->stack, decoder->ip +
+ intel_pt_insn->length);
+ if (err)
+ goto out;
+ }
+ } else if (intel_pt_insn->op == INTEL_PT_OP_RET) {
+ decoder->ret_addr = intel_pt_pop(&decoder->stack);
+ }
+
+ if (intel_pt_insn->branch == INTEL_PT_BR_UNCONDITIONAL) {
+ int cnt = decoder->no_progress++;
+
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip += intel_pt_insn->length +
+ intel_pt_insn->rel;
+ decoder->state.to_ip = decoder->ip;
+ err = INTEL_PT_RETURN;
+
+ /*
+ * Check for being stuck in a loop. This can happen if a
+ * decoder error results in the decoder erroneously setting the
+ * ip to an address that is itself in an infinite loop that
+ * consumes no packets. When that happens, there must be an
+ * unconditional branch.
+ */
+ if (cnt) {
+ if (cnt == 1) {
+ decoder->stuck_ip = decoder->state.to_ip;
+ decoder->stuck_ip_prd = 1;
+ decoder->stuck_ip_cnt = 1;
+ } else if (cnt > INTEL_PT_MAX_LOOPS ||
+ decoder->state.to_ip == decoder->stuck_ip) {
+ intel_pt_log_at("ERROR: Never-ending loop",
+ decoder->state.to_ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ err = -ELOOP;
+ goto out;
+ } else if (!--decoder->stuck_ip_cnt) {
+ decoder->stuck_ip_prd += 1;
+ decoder->stuck_ip_cnt = decoder->stuck_ip_prd;
+ decoder->stuck_ip = decoder->state.to_ip;
+ }
+ }
+ goto out_no_progress;
+ }
+out:
+ decoder->no_progress = 0;
+out_no_progress:
+ decoder->state.insn_op = intel_pt_insn->op;
+ decoder->state.insn_len = intel_pt_insn->length;
+
+ if (decoder->tx_flags & INTEL_PT_IN_TX)
+ decoder->state.flags |= INTEL_PT_IN_TX;
+
+ return err;
+}
+
+static int intel_pt_walk_fup(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ uint64_t ip;
+ int err;
+
+ ip = decoder->last_ip;
+
+ while (1) {
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, ip);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err == -EAGAIN) {
+ if (decoder->set_fup_tx_flags) {
+ decoder->set_fup_tx_flags = false;
+ decoder->tx_flags = decoder->fup_tx_flags;
+ decoder->state.type = INTEL_PT_TRANSACTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->state.flags = decoder->fup_tx_flags;
+ return 0;
+ }
+ return err;
+ }
+ decoder->set_fup_tx_flags = false;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ intel_pt_log_at("ERROR: Unexpected indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ intel_pt_log_at("ERROR: Unexpected conditional branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ intel_pt_bug(decoder);
+ }
+}
+
+static int intel_pt_walk_tip(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ int err;
+
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ if (decoder->pkt_state == INTEL_PT_STATE_TIP_PGD) {
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ if (decoder->packet.count != 0)
+ decoder->ip = decoder->last_ip;
+ } else {
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->state.from_ip = decoder->ip;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ decoder->state.to_ip = decoder->last_ip;
+ decoder->ip = decoder->last_ip;
+ }
+ }
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ intel_pt_log_at("ERROR: Conditional branch when expecting indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ return -ENOENT;
+ }
+
+ return intel_pt_bug(decoder);
+}
+
+static int intel_pt_walk_tnt(struct intel_pt_decoder *decoder)
+{
+ struct intel_pt_insn intel_pt_insn;
+ int err;
+
+ while (1) {
+ err = intel_pt_walk_insn(decoder, &intel_pt_insn, 0);
+ if (err == INTEL_PT_RETURN)
+ return 0;
+ if (err)
+ return err;
+
+ if (intel_pt_insn.op == INTEL_PT_OP_RET) {
+ if (!decoder->return_compression) {
+ intel_pt_log_at("ERROR: RET when expecting conditional branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ if (!decoder->ret_addr) {
+ intel_pt_log_at("ERROR: Bad RET compression (stack empty)",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ if (!(decoder->tnt.payload & BIT63)) {
+ intel_pt_log_at("ERROR: Bad RET compression (TNT=N)",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+ }
+ decoder->tnt.count -= 1;
+ if (!decoder->tnt.count)
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->tnt.payload <<= 1;
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip = decoder->ret_addr;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_INDIRECT) {
+ /* Handle deferred TIPs */
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+ if (decoder->packet.type != INTEL_PT_TIP ||
+ decoder->packet.count == 0) {
+ intel_pt_log_at("ERROR: Missing deferred TIP for indirect branch",
+ decoder->ip);
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ decoder->pkt_step = 0;
+ return -ENOENT;
+ }
+ intel_pt_set_last_ip(decoder);
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = decoder->last_ip;
+ decoder->ip = decoder->last_ip;
+ return 0;
+ }
+
+ if (intel_pt_insn.branch == INTEL_PT_BR_CONDITIONAL) {
+ decoder->tnt.count -= 1;
+ if (!decoder->tnt.count)
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ if (decoder->tnt.payload & BIT63) {
+ decoder->tnt.payload <<= 1;
+ decoder->state.from_ip = decoder->ip;
+ decoder->ip += intel_pt_insn.length +
+ intel_pt_insn.rel;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+ /* Instruction sample for a non-taken branch */
+ if (decoder->state.type & INTEL_PT_INSTRUCTION) {
+ decoder->tnt.payload <<= 1;
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->ip += intel_pt_insn.length;
+ return 0;
+ }
+ decoder->ip += intel_pt_insn.length;
+ if (!decoder->tnt.count)
+ return -EAGAIN;
+ decoder->tnt.payload <<= 1;
+ continue;
+ }
+
+ return intel_pt_bug(decoder);
+ }
+}
+
+static int intel_pt_mode_tsx(struct intel_pt_decoder *decoder, bool *no_tip)
+{
+ unsigned int fup_tx_flags;
+ int err;
+
+ fup_tx_flags = decoder->packet.payload &
+ (INTEL_PT_IN_TX | INTEL_PT_ABORT_TX);
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+ if (decoder->packet.type == INTEL_PT_FUP) {
+ decoder->fup_tx_flags = fup_tx_flags;
+ decoder->set_fup_tx_flags = true;
+ if (!(decoder->fup_tx_flags & INTEL_PT_ABORT_TX))
+ *no_tip = true;
+ } else {
+ intel_pt_log_at("ERROR: Missing FUP after MODE.TSX",
+ decoder->pos);
+ intel_pt_update_in_tx(decoder);
+ }
+ return 0;
+}
+
+static void intel_pt_calc_tsc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp;
+
+ decoder->have_tma = false;
+
+ if (decoder->ref_timestamp) {
+ timestamp = decoder->packet.payload |
+ (decoder->ref_timestamp & (0xffULL << 56));
+ if (timestamp < decoder->ref_timestamp) {
+ if (decoder->ref_timestamp - timestamp > (1ULL << 55))
+ timestamp += (1ULL << 56);
+ } else {
+ if (timestamp - decoder->ref_timestamp > (1ULL << 55))
+ timestamp -= (1ULL << 56);
+ }
+ decoder->tsc_timestamp = timestamp;
+ decoder->timestamp = timestamp;
+ decoder->ref_timestamp = 0;
+ decoder->timestamp_insn_cnt = 0;
+ } else if (decoder->timestamp) {
+ timestamp = decoder->packet.payload |
+ (decoder->timestamp & (0xffULL << 56));
+ decoder->tsc_timestamp = timestamp;
+ if (timestamp < decoder->timestamp &&
+ decoder->timestamp - timestamp < decoder->tsc_slip) {
+ intel_pt_log_to("Suppressing backwards timestamp",
+ timestamp);
+ timestamp = decoder->timestamp;
+ }
+ while (timestamp < decoder->timestamp) {
+ intel_pt_log_to("Wraparound timestamp", timestamp);
+ timestamp += (1ULL << 56);
+ decoder->tsc_timestamp = timestamp;
+ }
+ decoder->timestamp = timestamp;
+ decoder->timestamp_insn_cnt = 0;
+ }
+
+ if (decoder->last_packet_type == INTEL_PT_CYC) {
+ decoder->cyc_ref_timestamp = decoder->timestamp;
+ decoder->cycle_cnt = 0;
+ decoder->have_calc_cyc_to_tsc = false;
+ intel_pt_calc_cyc_to_tsc(decoder, false);
+ }
+
+ intel_pt_log_to("Setting timestamp", decoder->timestamp);
+}
+
+static int intel_pt_overflow(struct intel_pt_decoder *decoder)
+{
+ intel_pt_log("ERROR: Buffer overflow\n");
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ decoder->cbr = 0;
+ decoder->pkt_state = INTEL_PT_STATE_ERR_RESYNC;
+ decoder->overflow = true;
+ return -EOVERFLOW;
+}
+
+static void intel_pt_calc_tma(struct intel_pt_decoder *decoder)
+{
+ uint32_t ctc = decoder->packet.payload;
+ uint32_t fc = decoder->packet.count;
+ uint32_t ctc_rem = ctc & decoder->ctc_rem_mask;
+
+ if (!decoder->tsc_ctc_ratio_d)
+ return;
+
+ decoder->last_mtc = (ctc >> decoder->mtc_shift) & 0xff;
+ decoder->ctc_timestamp = decoder->tsc_timestamp - fc;
+ if (decoder->tsc_ctc_mult) {
+ decoder->ctc_timestamp -= ctc_rem * decoder->tsc_ctc_mult;
+ } else {
+ decoder->ctc_timestamp -= multdiv(ctc_rem,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+ decoder->ctc_delta = 0;
+ decoder->have_tma = true;
+ intel_pt_log("CTC timestamp " x64_fmt " last MTC %#x CTC rem %#x\n",
+ decoder->ctc_timestamp, decoder->last_mtc, ctc_rem);
+}
+
+static void intel_pt_calc_mtc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp;
+ uint32_t mtc, mtc_delta;
+
+ if (!decoder->have_tma)
+ return;
+
+ mtc = decoder->packet.payload;
+
+ if (mtc > decoder->last_mtc)
+ mtc_delta = mtc - decoder->last_mtc;
+ else
+ mtc_delta = mtc + 256 - decoder->last_mtc;
+
+ decoder->ctc_delta += mtc_delta << decoder->mtc_shift;
+
+ if (decoder->tsc_ctc_mult) {
+ timestamp = decoder->ctc_timestamp +
+ decoder->ctc_delta * decoder->tsc_ctc_mult;
+ } else {
+ timestamp = decoder->ctc_timestamp +
+ multdiv(decoder->ctc_delta,
+ decoder->tsc_ctc_ratio_n,
+ decoder->tsc_ctc_ratio_d);
+ }
+
+ if (timestamp < decoder->timestamp)
+ intel_pt_log("Suppressing MTC timestamp " x64_fmt " less than current timestamp " x64_fmt "\n",
+ timestamp, decoder->timestamp);
+ else
+ decoder->timestamp = timestamp;
+
+ decoder->timestamp_insn_cnt = 0;
+ decoder->last_mtc = mtc;
+
+ if (decoder->last_packet_type == INTEL_PT_CYC) {
+ decoder->cyc_ref_timestamp = decoder->timestamp;
+ decoder->cycle_cnt = 0;
+ decoder->have_calc_cyc_to_tsc = false;
+ intel_pt_calc_cyc_to_tsc(decoder, true);
+ }
+}
+
+static void intel_pt_calc_cbr(struct intel_pt_decoder *decoder)
+{
+ unsigned int cbr = decoder->packet.payload;
+
+ if (decoder->cbr == cbr)
+ return;
+
+ decoder->cbr = cbr;
+ decoder->cbr_cyc_to_tsc = decoder->max_non_turbo_ratio_fp / cbr;
+}
+
+static void intel_pt_calc_cyc_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t timestamp = decoder->cyc_ref_timestamp;
+
+ decoder->have_cyc = true;
+
+ decoder->cycle_cnt += decoder->packet.payload;
+
+ if (!decoder->cyc_ref_timestamp)
+ return;
+
+ if (decoder->have_calc_cyc_to_tsc)
+ timestamp += decoder->cycle_cnt * decoder->calc_cyc_to_tsc;
+ else if (decoder->cbr)
+ timestamp += decoder->cycle_cnt * decoder->cbr_cyc_to_tsc;
+ else
+ return;
+
+ if (timestamp < decoder->timestamp)
+ intel_pt_log("Suppressing CYC timestamp " x64_fmt " less than current timestamp " x64_fmt "\n",
+ timestamp, decoder->timestamp);
+ else
+ decoder->timestamp = timestamp;
+}
+
+/* Walk PSB+ packets when already in sync. */
+static int intel_pt_walk_psbend(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_PSBEND:
+ return 0;
+
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_TNT:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_BAD:
+ case INTEL_PT_PSB:
+ decoder->have_tma = false;
+ intel_pt_log("ERROR: Unexpected packet\n");
+ return -EAGAIN;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_FUP:
+ decoder->pge = true;
+ intel_pt_set_last_ip(decoder);
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type == INTEL_PT_PERIOD_MTC)
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+ break;
+
+ case INTEL_PT_CYC:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_walk_fup_tip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ if (decoder->tx_flags & INTEL_PT_ABORT_TX) {
+ decoder->tx_flags = 0;
+ decoder->state.flags &= ~INTEL_PT_IN_TX;
+ decoder->state.flags |= INTEL_PT_ABORT_TX;
+ } else {
+ decoder->state.flags |= INTEL_PT_ASYNC;
+ }
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TNT:
+ case INTEL_PT_FUP:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_PSB:
+ case INTEL_PT_TSC:
+ case INTEL_PT_TMA:
+ case INTEL_PT_CBR:
+ case INTEL_PT_MODE_TSX:
+ case INTEL_PT_BAD:
+ case INTEL_PT_PSBEND:
+ intel_pt_log("ERROR: Missing TIP after FUP\n");
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TIP_PGD:
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ if (decoder->packet.count != 0) {
+ intel_pt_set_ip(decoder);
+ intel_pt_log("Omitting PGD ip " x64_fmt "\n",
+ decoder->ip);
+ }
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ return 0;
+
+ case INTEL_PT_TIP_PGE:
+ decoder->pge = true;
+ intel_pt_log("Omitting PGE ip " x64_fmt "\n",
+ decoder->ip);
+ decoder->state.from_ip = 0;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ intel_pt_set_ip(decoder);
+ decoder->state.to_ip = decoder->ip;
+ }
+ return 0;
+
+ case INTEL_PT_TIP:
+ decoder->state.from_ip = decoder->ip;
+ if (decoder->packet.count == 0) {
+ decoder->state.to_ip = 0;
+ } else {
+ intel_pt_set_ip(decoder);
+ decoder->state.to_ip = decoder->ip;
+ }
+ return 0;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type == INTEL_PT_PERIOD_MTC)
+ decoder->state.type |= INTEL_PT_INSTRUCTION;
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ break;
+
+ default:
+ return intel_pt_bug(decoder);
+ }
+ }
+}
+
+static int intel_pt_walk_trace(struct intel_pt_decoder *decoder)
+{
+ bool no_tip = false;
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+next:
+ switch (decoder->packet.type) {
+ case INTEL_PT_TNT:
+ if (!decoder->packet.count)
+ break;
+ decoder->tnt = decoder->packet;
+ decoder->pkt_state = INTEL_PT_STATE_TNT;
+ err = intel_pt_walk_tnt(decoder);
+ if (err == -EAGAIN)
+ break;
+ return err;
+
+ case INTEL_PT_TIP_PGD:
+ if (decoder->packet.count != 0)
+ intel_pt_set_last_ip(decoder);
+ decoder->pkt_state = INTEL_PT_STATE_TIP_PGD;
+ return intel_pt_walk_tip(decoder);
+
+ case INTEL_PT_TIP_PGE: {
+ decoder->pge = true;
+ if (decoder->packet.count == 0) {
+ intel_pt_log_at("Skipping zero TIP.PGE",
+ decoder->pos);
+ break;
+ }
+ intel_pt_set_ip(decoder);
+ decoder->state.from_ip = 0;
+ decoder->state.to_ip = decoder->ip;
+ return 0;
+ }
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_TIP:
+ if (decoder->packet.count != 0)
+ intel_pt_set_last_ip(decoder);
+ decoder->pkt_state = INTEL_PT_STATE_TIP;
+ return intel_pt_walk_tip(decoder);
+
+ case INTEL_PT_FUP:
+ if (decoder->packet.count == 0) {
+ intel_pt_log_at("Skipping zero FUP",
+ decoder->pos);
+ no_tip = false;
+ break;
+ }
+ intel_pt_set_last_ip(decoder);
+ err = intel_pt_walk_fup(decoder);
+ if (err != -EAGAIN) {
+ if (err)
+ return err;
+ if (no_tip)
+ decoder->pkt_state =
+ INTEL_PT_STATE_FUP_NO_TIP;
+ else
+ decoder->pkt_state = INTEL_PT_STATE_FUP;
+ return 0;
+ }
+ if (no_tip) {
+ no_tip = false;
+ break;
+ }
+ return intel_pt_walk_fup_tip(decoder);
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ break;
+
+ case INTEL_PT_PSB:
+ intel_pt_clear_stack(&decoder->stack);
+ err = intel_pt_walk_psbend(decoder);
+ if (err == -EAGAIN)
+ goto next;
+ if (err)
+ return err;
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ if (decoder->period_type != INTEL_PT_PERIOD_MTC)
+ break;
+ /*
+ * Ensure that there has been an instruction since the
+ * last MTC.
+ */
+ if (!decoder->mtc_insn)
+ break;
+ decoder->mtc_insn = false;
+ /* Ensure that there is a timestamp */
+ if (!decoder->timestamp)
+ break;
+ decoder->state.type = INTEL_PT_INSTRUCTION;
+ decoder->state.from_ip = decoder->ip;
+ decoder->state.to_ip = 0;
+ decoder->mtc_insn = false;
+ return 0;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ /* MODE_TSX need not be followed by FUP */
+ if (!decoder->pge) {
+ intel_pt_update_in_tx(decoder);
+ break;
+ }
+ err = intel_pt_mode_tsx(decoder, &no_tip);
+ if (err)
+ return err;
+ goto next;
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ break;
+
+ default:
+ return intel_pt_bug(decoder);
+ }
+ }
+}
+
+/* Walk PSB+ packets to get in sync. */
+static int intel_pt_walk_psb(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TIP_PGD:
+ decoder->continuous_period = false;
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ intel_pt_log("ERROR: Unexpected packet\n");
+ return -ENOENT;
+
+ case INTEL_PT_FUP:
+ decoder->pge = true;
+ if (decoder->last_ip || decoder->packet.count == 6 ||
+ decoder->packet.count == 0) {
+ uint64_t current_ip = decoder->ip;
+
+ intel_pt_set_ip(decoder);
+ if (current_ip)
+ intel_pt_log_to("Setting IP",
+ decoder->ip);
+ }
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ case INTEL_PT_TNT:
+ decoder->have_tma = false;
+ intel_pt_log("ERROR: Unexpected packet\n");
+ if (decoder->ip)
+ decoder->pkt_state = INTEL_PT_STATE_ERR4;
+ else
+ decoder->pkt_state = INTEL_PT_STATE_ERR3;
+ return -ENOENT;
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_PSBEND:
+ return 0;
+
+ case INTEL_PT_PSB:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ while (1) {
+ err = intel_pt_get_next_packet(decoder);
+ if (err)
+ return err;
+
+ switch (decoder->packet.type) {
+ case INTEL_PT_TIP_PGD:
+ decoder->continuous_period = false;
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ decoder->pge = decoder->packet.type != INTEL_PT_TIP_PGD;
+ if (decoder->last_ip || decoder->packet.count == 6 ||
+ decoder->packet.count == 0)
+ intel_pt_set_ip(decoder);
+ if (decoder->ip)
+ return 0;
+ break;
+
+ case INTEL_PT_FUP:
+ if (decoder->overflow) {
+ if (decoder->last_ip ||
+ decoder->packet.count == 6 ||
+ decoder->packet.count == 0)
+ intel_pt_set_ip(decoder);
+ if (decoder->ip)
+ return 0;
+ }
+ if (decoder->packet.count)
+ intel_pt_set_last_ip(decoder);
+ break;
+
+ case INTEL_PT_MTC:
+ intel_pt_calc_mtc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TSC:
+ intel_pt_calc_tsc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_TMA:
+ intel_pt_calc_tma(decoder);
+ break;
+
+ case INTEL_PT_CYC:
+ intel_pt_calc_cyc_timestamp(decoder);
+ break;
+
+ case INTEL_PT_CBR:
+ intel_pt_calc_cbr(decoder);
+ break;
+
+ case INTEL_PT_PIP:
+ decoder->cr3 = decoder->packet.payload & (BIT63 - 1);
+ break;
+
+ case INTEL_PT_MODE_EXEC:
+ decoder->exec_mode = decoder->packet.payload;
+ break;
+
+ case INTEL_PT_MODE_TSX:
+ intel_pt_update_in_tx(decoder);
+ break;
+
+ case INTEL_PT_OVF:
+ return intel_pt_overflow(decoder);
+
+ case INTEL_PT_BAD: /* Does not happen */
+ return intel_pt_bug(decoder);
+
+ case INTEL_PT_TRACESTOP:
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ intel_pt_clear_tx_flags(decoder);
+ decoder->have_tma = false;
+ break;
+
+ case INTEL_PT_PSB:
+ err = intel_pt_walk_psb(decoder);
+ if (err)
+ return err;
+ if (decoder->ip) {
+ /* Do not have a sample */
+ decoder->state.type = 0;
+ return 0;
+ }
+ break;
+
+ case INTEL_PT_TNT:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MNT:
+ case INTEL_PT_PAD:
+ default:
+ break;
+ }
+ }
+}
+
+static int intel_pt_sync_ip(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ intel_pt_log("Scanning for full IP\n");
+ err = intel_pt_walk_to_ip(decoder);
+ if (err)
+ return err;
+
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ decoder->overflow = false;
+
+ decoder->state.from_ip = 0;
+ decoder->state.to_ip = decoder->ip;
+ intel_pt_log_to("Setting IP", decoder->ip);
+
+ return 0;
+}
+
+static int intel_pt_part_psb(struct intel_pt_decoder *decoder)
+{
+ const unsigned char *end = decoder->buf + decoder->len;
+ size_t i;
+
+ for (i = INTEL_PT_PSB_LEN - 1; i; i--) {
+ if (i > decoder->len)
+ continue;
+ if (!memcmp(end - i, INTEL_PT_PSB_STR, i))
+ return i;
+ }
+ return 0;
+}
+
+static int intel_pt_rest_psb(struct intel_pt_decoder *decoder, int part_psb)
+{
+ size_t rest_psb = INTEL_PT_PSB_LEN - part_psb;
+ const char *psb = INTEL_PT_PSB_STR;
+
+ if (rest_psb > decoder->len ||
+ memcmp(decoder->buf, psb + part_psb, rest_psb))
+ return 0;
+
+ return rest_psb;
+}
+
+static int intel_pt_get_split_psb(struct intel_pt_decoder *decoder,
+ int part_psb)
+{
+ int rest_psb, ret;
+
+ decoder->pos += decoder->len;
+ decoder->len = 0;
+
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+
+ rest_psb = intel_pt_rest_psb(decoder, part_psb);
+ if (!rest_psb)
+ return 0;
+
+ decoder->pos -= part_psb;
+ decoder->next_buf = decoder->buf + rest_psb;
+ decoder->next_len = decoder->len - rest_psb;
+ memcpy(decoder->temp_buf, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ decoder->buf = decoder->temp_buf;
+ decoder->len = INTEL_PT_PSB_LEN;
+
+ return 0;
+}
+
+static int intel_pt_scan_for_psb(struct intel_pt_decoder *decoder)
+{
+ unsigned char *next;
+ int ret;
+
+ intel_pt_log("Scanning for PSB\n");
+ while (1) {
+ if (!decoder->len) {
+ ret = intel_pt_get_next_data(decoder);
+ if (ret)
+ return ret;
+ }
+
+ next = memmem(decoder->buf, decoder->len, INTEL_PT_PSB_STR,
+ INTEL_PT_PSB_LEN);
+ if (!next) {
+ int part_psb;
+
+ part_psb = intel_pt_part_psb(decoder);
+ if (part_psb) {
+ ret = intel_pt_get_split_psb(decoder, part_psb);
+ if (ret)
+ return ret;
+ } else {
+ decoder->pos += decoder->len;
+ decoder->len = 0;
+ }
+ continue;
+ }
+
+ decoder->pkt_step = next - decoder->buf;
+ return intel_pt_get_next_packet(decoder);
+ }
+}
+
+static int intel_pt_sync(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ decoder->pge = false;
+ decoder->continuous_period = false;
+ decoder->last_ip = 0;
+ decoder->ip = 0;
+ intel_pt_clear_stack(&decoder->stack);
+
+ err = intel_pt_scan_for_psb(decoder);
+ if (err)
+ return err;
+
+ decoder->pkt_state = INTEL_PT_STATE_NO_IP;
+
+ err = intel_pt_walk_psb(decoder);
+ if (err)
+ return err;
+
+ if (decoder->ip) {
+ decoder->state.type = 0; /* Do not have a sample */
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ } else {
+ return intel_pt_sync_ip(decoder);
+ }
+
+ return 0;
+}
+
+static uint64_t intel_pt_est_timestamp(struct intel_pt_decoder *decoder)
+{
+ uint64_t est = decoder->timestamp_insn_cnt << 1;
+
+ if (!decoder->cbr || !decoder->max_non_turbo_ratio)
+ goto out;
+
+ est *= decoder->max_non_turbo_ratio;
+ est /= decoder->cbr;
+out:
+ return decoder->timestamp + est;
+}
+
+const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder)
+{
+ int err;
+
+ do {
+ decoder->state.type = INTEL_PT_BRANCH;
+ decoder->state.flags = 0;
+
+ switch (decoder->pkt_state) {
+ case INTEL_PT_STATE_NO_PSB:
+ err = intel_pt_sync(decoder);
+ break;
+ case INTEL_PT_STATE_NO_IP:
+ decoder->last_ip = 0;
+ /* Fall through */
+ case INTEL_PT_STATE_ERR_RESYNC:
+ err = intel_pt_sync_ip(decoder);
+ break;
+ case INTEL_PT_STATE_IN_SYNC:
+ err = intel_pt_walk_trace(decoder);
+ break;
+ case INTEL_PT_STATE_TNT:
+ err = intel_pt_walk_tnt(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_trace(decoder);
+ break;
+ case INTEL_PT_STATE_TIP:
+ case INTEL_PT_STATE_TIP_PGD:
+ err = intel_pt_walk_tip(decoder);
+ break;
+ case INTEL_PT_STATE_FUP:
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ err = intel_pt_walk_fup(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_fup_tip(decoder);
+ else if (!err)
+ decoder->pkt_state = INTEL_PT_STATE_FUP;
+ break;
+ case INTEL_PT_STATE_FUP_NO_TIP:
+ decoder->pkt_state = INTEL_PT_STATE_IN_SYNC;
+ err = intel_pt_walk_fup(decoder);
+ if (err == -EAGAIN)
+ err = intel_pt_walk_trace(decoder);
+ break;
+ default:
+ err = intel_pt_bug(decoder);
+ break;
+ }
+ } while (err == -ENOLINK);
+
+ decoder->state.err = err ? intel_pt_ext_err(err) : 0;
+ decoder->state.timestamp = decoder->timestamp;
+ decoder->state.est_timestamp = intel_pt_est_timestamp(decoder);
+ decoder->state.cr3 = decoder->cr3;
+ decoder->state.tot_insn_cnt = decoder->tot_insn_cnt;
+
+ if (err)
+ decoder->state.from_ip = decoder->ip;
+
+ return &decoder->state;
+}
+
+static bool intel_pt_at_psb(unsigned char *buf, size_t len)
+{
+ if (len < INTEL_PT_PSB_LEN)
+ return false;
+ return memmem(buf, INTEL_PT_PSB_LEN, INTEL_PT_PSB_STR,
+ INTEL_PT_PSB_LEN);
+}
+
+/**
+ * intel_pt_next_psb - move buffer pointer to the start of the next PSB packet.
+ * @buf: pointer to buffer pointer
+ * @len: size of buffer
+ *
+ * Updates the buffer pointer to point to the start of the next PSB packet if
+ * there is one, otherwise the buffer pointer is unchanged. If @buf is updated,
+ * @len is adjusted accordingly.
+ *
+ * Return: %true if a PSB packet is found, %false otherwise.
+ */
+static bool intel_pt_next_psb(unsigned char **buf, size_t *len)
+{
+ unsigned char *next;
+
+ next = memmem(*buf, *len, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ if (next) {
+ *len -= next - *buf;
+ *buf = next;
+ return true;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_step_psb - move buffer pointer to the start of the following PSB
+ * packet.
+ * @buf: pointer to buffer pointer
+ * @len: size of buffer
+ *
+ * Updates the buffer pointer to point to the start of the following PSB packet
+ * (skipping the PSB at @buf itself) if there is one, otherwise the buffer
+ * pointer is unchanged. If @buf is updated, @len is adjusted accordingly.
+ *
+ * Return: %true if a PSB packet is found, %false otherwise.
+ */
+static bool intel_pt_step_psb(unsigned char **buf, size_t *len)
+{
+ unsigned char *next;
+
+ if (!*len)
+ return false;
+
+ next = memmem(*buf + 1, *len - 1, INTEL_PT_PSB_STR, INTEL_PT_PSB_LEN);
+ if (next) {
+ *len -= next - *buf;
+ *buf = next;
+ return true;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_last_psb - find the last PSB packet in a buffer.
+ * @buf: buffer
+ * @len: size of buffer
+ *
+ * This function finds the last PSB in a buffer.
+ *
+ * Return: A pointer to the last PSB in @buf if found, %NULL otherwise.
+ */
+static unsigned char *intel_pt_last_psb(unsigned char *buf, size_t len)
+{
+ const char *n = INTEL_PT_PSB_STR;
+ unsigned char *p;
+ size_t k;
+
+ if (len < INTEL_PT_PSB_LEN)
+ return NULL;
+
+ k = len - INTEL_PT_PSB_LEN + 1;
+ while (1) {
+ p = memrchr(buf, n[0], k);
+ if (!p)
+ return NULL;
+ if (!memcmp(p + 1, n + 1, INTEL_PT_PSB_LEN - 1))
+ return p;
+ k = p - buf;
+ if (!k)
+ return NULL;
+ }
+}
+
+/**
+ * intel_pt_next_tsc - find and return next TSC.
+ * @buf: buffer
+ * @len: size of buffer
+ * @tsc: TSC value returned
+ *
+ * Find a TSC packet in @buf and return the TSC value. This function assumes
+ * that @buf starts at a PSB and that PSB+ will contain TSC and so stops if a
+ * PSBEND packet is found.
+ *
+ * Return: %true if TSC is found, false otherwise.
+ */
+static bool intel_pt_next_tsc(unsigned char *buf, size_t len, uint64_t *tsc)
+{
+ struct intel_pt_pkt packet;
+ int ret;
+
+ while (len) {
+ ret = intel_pt_get_packet(buf, len, &packet);
+ if (ret <= 0)
+ return false;
+ if (packet.type == INTEL_PT_TSC) {
+ *tsc = packet.payload;
+ return true;
+ }
+ if (packet.type == INTEL_PT_PSBEND)
+ return false;
+ buf += ret;
+ len -= ret;
+ }
+ return false;
+}
+
+/**
+ * intel_pt_tsc_cmp - compare 7-byte TSCs.
+ * @tsc1: first TSC to compare
+ * @tsc2: second TSC to compare
+ *
+ * This function compares 7-byte TSC values allowing for the possibility that
+ * TSC wrapped around. Generally it is not possible to know if TSC has wrapped
+ * around so for that purpose this function assumes the absolute difference is
+ * less than half the maximum difference.
+ *
+ * Return: %-1 if @tsc1 is before @tsc2, %0 if @tsc1 == @tsc2, %1 if @tsc1 is
+ * after @tsc2.
+ */
+static int intel_pt_tsc_cmp(uint64_t tsc1, uint64_t tsc2)
+{
+ const uint64_t halfway = (1ULL << 55);
+
+ if (tsc1 == tsc2)
+ return 0;
+
+ if (tsc1 < tsc2) {
+ if (tsc2 - tsc1 < halfway)
+ return -1;
+ else
+ return 1;
+ } else {
+ if (tsc1 - tsc2 < halfway)
+ return 1;
+ else
+ return -1;
+ }
+}
+
+/**
+ * intel_pt_find_overlap_tsc - determine start of non-overlapped trace data
+ * using TSC.
+ * @buf_a: first buffer
+ * @len_a: size of first buffer
+ * @buf_b: second buffer
+ * @len_b: size of second buffer
+ *
+ * If the trace contains TSC we can look at the last TSC of @buf_a and the
+ * first TSC of @buf_b in order to determine if the buffers overlap, and then
+ * walk forward in @buf_b until a later TSC is found. A precondition is that
+ * @buf_a and @buf_b are positioned at a PSB.
+ *
+ * Return: A pointer into @buf_b from where non-overlapped data starts, or
+ * @buf_b + @len_b if there is no non-overlapped data.
+ */
+static unsigned char *intel_pt_find_overlap_tsc(unsigned char *buf_a,
+ size_t len_a,
+ unsigned char *buf_b,
+ size_t len_b)
+{
+ uint64_t tsc_a, tsc_b;
+ unsigned char *p;
+ size_t len;
+
+ p = intel_pt_last_psb(buf_a, len_a);
+ if (!p)
+ return buf_b; /* No PSB in buf_a => no overlap */
+
+ len = len_a - (p - buf_a);
+ if (!intel_pt_next_tsc(p, len, &tsc_a)) {
+ /* The last PSB+ in buf_a is incomplete, so go back one more */
+ len_a -= len;
+ p = intel_pt_last_psb(buf_a, len_a);
+ if (!p)
+ return buf_b; /* No full PSB+ => assume no overlap */
+ len = len_a - (p - buf_a);
+ if (!intel_pt_next_tsc(p, len, &tsc_a))
+ return buf_b; /* No TSC in buf_a => assume no overlap */
+ }
+
+ while (1) {
+ /* Ignore PSB+ with no TSC */
+ if (intel_pt_next_tsc(buf_b, len_b, &tsc_b) &&
+ intel_pt_tsc_cmp(tsc_a, tsc_b) < 0)
+ return buf_b; /* tsc_a < tsc_b => no overlap */
+
+ if (!intel_pt_step_psb(&buf_b, &len_b))
+ return buf_b + len_b; /* No PSB in buf_b => no data */
+ }
+}
+
+/**
+ * intel_pt_find_overlap - determine start of non-overlapped trace data.
+ * @buf_a: first buffer
+ * @len_a: size of first buffer
+ * @buf_b: second buffer
+ * @len_b: size of second buffer
+ * @have_tsc: can use TSC packets to detect overlap
+ *
+ * When trace samples or snapshots are recorded there is the possibility that
+ * the data overlaps. Note that, for the purposes of decoding, data is only
+ * useful if it begins with a PSB packet.
+ *
+ * Return: A pointer into @buf_b from where non-overlapped data starts, or
+ * @buf_b + @len_b if there is no non-overlapped data.
+ */
+unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b,
+ bool have_tsc)
+{
+ unsigned char *found;
+
+ /* Buffer 'b' must start at PSB so throw away everything before that */
+ if (!intel_pt_next_psb(&buf_b, &len_b))
+ return buf_b + len_b; /* No PSB */
+
+ if (!intel_pt_next_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+
+ if (have_tsc) {
+ found = intel_pt_find_overlap_tsc(buf_a, len_a, buf_b, len_b);
+ if (found)
+ return found;
+ }
+
+ /*
+ * Buffer 'b' cannot end within buffer 'a' so, for comparison purposes,
+ * we can ignore the first part of buffer 'a'.
+ */
+ while (len_b < len_a) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+
+ /* Now len_b >= len_a */
+ if (len_b > len_a) {
+ /* The leftover buffer 'b' must start at a PSB */
+ while (!intel_pt_at_psb(buf_b + len_a, len_b - len_a)) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+ }
+
+ while (1) {
+ /* Potential overlap so check the bytes */
+ found = memmem(buf_a, len_a, buf_b, len_a);
+ if (found)
+ return buf_b + len_a;
+
+ /* Try again at next PSB in buffer 'a' */
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+
+ /* The leftover buffer 'b' must start at a PSB */
+ while (!intel_pt_at_psb(buf_b + len_a, len_b - len_a)) {
+ if (!intel_pt_step_psb(&buf_a, &len_a))
+ return buf_b; /* No overlap */
+ }
+ }
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
new file mode 100644
index 000000000000..02c38fec1c37
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.h
@@ -0,0 +1,109 @@
+/*
+ * intel_pt_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_DECODER_H__
+#define INCLUDE__INTEL_PT_DECODER_H__
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+#include "intel-pt-insn-decoder.h"
+
+#define INTEL_PT_IN_TX (1 << 0)
+#define INTEL_PT_ABORT_TX (1 << 1)
+#define INTEL_PT_ASYNC (1 << 2)
+
+enum intel_pt_sample_type {
+ INTEL_PT_BRANCH = 1 << 0,
+ INTEL_PT_INSTRUCTION = 1 << 1,
+ INTEL_PT_TRANSACTION = 1 << 2,
+};
+
+enum intel_pt_period_type {
+ INTEL_PT_PERIOD_NONE,
+ INTEL_PT_PERIOD_INSTRUCTIONS,
+ INTEL_PT_PERIOD_TICKS,
+ INTEL_PT_PERIOD_MTC,
+};
+
+enum {
+ INTEL_PT_ERR_NOMEM = 1,
+ INTEL_PT_ERR_INTERN,
+ INTEL_PT_ERR_BADPKT,
+ INTEL_PT_ERR_NODATA,
+ INTEL_PT_ERR_NOINSN,
+ INTEL_PT_ERR_MISMAT,
+ INTEL_PT_ERR_OVR,
+ INTEL_PT_ERR_LOST,
+ INTEL_PT_ERR_UNK,
+ INTEL_PT_ERR_NELOOP,
+ INTEL_PT_ERR_MAX,
+};
+
+struct intel_pt_state {
+ enum intel_pt_sample_type type;
+ int err;
+ uint64_t from_ip;
+ uint64_t to_ip;
+ uint64_t cr3;
+ uint64_t tot_insn_cnt;
+ uint64_t timestamp;
+ uint64_t est_timestamp;
+ uint64_t trace_nr;
+ uint32_t flags;
+ enum intel_pt_insn_op insn_op;
+ int insn_len;
+};
+
+struct intel_pt_insn;
+
+struct intel_pt_buffer {
+ const unsigned char *buf;
+ size_t len;
+ bool consecutive;
+ uint64_t ref_timestamp;
+ uint64_t trace_nr;
+};
+
+struct intel_pt_params {
+ int (*get_trace)(struct intel_pt_buffer *buffer, void *data);
+ int (*walk_insn)(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip, uint64_t to_ip,
+ uint64_t max_insn_cnt, void *data);
+ void *data;
+ bool return_compression;
+ uint64_t period;
+ enum intel_pt_period_type period_type;
+ unsigned max_non_turbo_ratio;
+ unsigned int mtc_period;
+ uint32_t tsc_ctc_ratio_n;
+ uint32_t tsc_ctc_ratio_d;
+};
+
+struct intel_pt_decoder;
+
+struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params);
+void intel_pt_decoder_free(struct intel_pt_decoder *decoder);
+
+const struct intel_pt_state *intel_pt_decode(struct intel_pt_decoder *decoder);
+
+unsigned char *intel_pt_find_overlap(unsigned char *buf_a, size_t len_a,
+ unsigned char *buf_b, size_t len_b,
+ bool have_tsc);
+
+int intel_pt__strerror(int code, char *buf, size_t buflen);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
new file mode 100644
index 000000000000..9e4eb8fcd559
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c
@@ -0,0 +1,246 @@
+/*
+ * intel_pt_insn_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#include "event.h"
+
+#include "insn.h"
+
+#include "inat.c"
+#include "insn.c"
+
+#include "intel-pt-insn-decoder.h"
+
+/* Based on branch_type() from perf_event_intel_lbr.c */
+static void intel_pt_insn_decoder(struct insn *insn,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ enum intel_pt_insn_op op = INTEL_PT_OP_OTHER;
+ enum intel_pt_insn_branch branch = INTEL_PT_BR_NO_BRANCH;
+ int ext;
+
+ if (insn_is_avx(insn)) {
+ intel_pt_insn->op = INTEL_PT_OP_OTHER;
+ intel_pt_insn->branch = INTEL_PT_BR_NO_BRANCH;
+ intel_pt_insn->length = insn->length;
+ return;
+ }
+
+ switch (insn->opcode.bytes[0]) {
+ case 0xf:
+ switch (insn->opcode.bytes[1]) {
+ case 0x05: /* syscall */
+ case 0x34: /* sysenter */
+ op = INTEL_PT_OP_SYSCALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0x07: /* sysret */
+ case 0x35: /* sysexit */
+ op = INTEL_PT_OP_SYSRET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0x80 ... 0x8f: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ default:
+ break;
+ }
+ break;
+ case 0x70 ... 0x7f: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xc2: /* near ret */
+ case 0xc3: /* near ret */
+ case 0xca: /* far ret */
+ case 0xcb: /* far ret */
+ op = INTEL_PT_OP_RET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xcf: /* iret */
+ op = INTEL_PT_OP_IRET;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xcc ... 0xce: /* int */
+ op = INTEL_PT_OP_INT;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xe8: /* call near rel */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_UNCONDITIONAL;
+ break;
+ case 0x9a: /* call far absolute */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xe0 ... 0xe2: /* loop */
+ op = INTEL_PT_OP_LOOP;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xe3: /* jcc */
+ op = INTEL_PT_OP_JCC;
+ branch = INTEL_PT_BR_CONDITIONAL;
+ break;
+ case 0xe9: /* jmp */
+ case 0xeb: /* jmp */
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_UNCONDITIONAL;
+ break;
+ case 0xea: /* far jmp */
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 0xff: /* call near absolute, call far absolute ind */
+ ext = (insn->modrm.bytes[0] >> 3) & 0x7;
+ switch (ext) {
+ case 2: /* near ind call */
+ case 3: /* far ind call */
+ op = INTEL_PT_OP_CALL;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ case 4:
+ case 5:
+ op = INTEL_PT_OP_JMP;
+ branch = INTEL_PT_BR_INDIRECT;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ intel_pt_insn->op = op;
+ intel_pt_insn->branch = branch;
+ intel_pt_insn->length = insn->length;
+
+ if (branch == INTEL_PT_BR_CONDITIONAL ||
+ branch == INTEL_PT_BR_UNCONDITIONAL) {
+#if __BYTE_ORDER == __BIG_ENDIAN
+ switch (insn->immediate.nbytes) {
+ case 1:
+ intel_pt_insn->rel = insn->immediate.value;
+ break;
+ case 2:
+ intel_pt_insn->rel =
+ bswap_16((short)insn->immediate.value);
+ break;
+ case 4:
+ intel_pt_insn->rel = bswap_32(insn->immediate.value);
+ break;
+ }
+#else
+ intel_pt_insn->rel = insn->immediate.value;
+#endif
+ }
+}
+
+int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ struct insn insn;
+
+ insn_init(&insn, buf, len, x86_64);
+ insn_get_length(&insn);
+ if (!insn_complete(&insn) || insn.length > len)
+ return -1;
+ intel_pt_insn_decoder(&insn, intel_pt_insn);
+ if (insn.length < INTEL_PT_INSN_DBG_BUF_SZ)
+ memcpy(intel_pt_insn->buf, buf, insn.length);
+ else
+ memcpy(intel_pt_insn->buf, buf, INTEL_PT_INSN_DBG_BUF_SZ);
+ return 0;
+}
+
+const char *branch_name[] = {
+ [INTEL_PT_OP_OTHER] = "Other",
+ [INTEL_PT_OP_CALL] = "Call",
+ [INTEL_PT_OP_RET] = "Ret",
+ [INTEL_PT_OP_JCC] = "Jcc",
+ [INTEL_PT_OP_JMP] = "Jmp",
+ [INTEL_PT_OP_LOOP] = "Loop",
+ [INTEL_PT_OP_IRET] = "IRet",
+ [INTEL_PT_OP_INT] = "Int",
+ [INTEL_PT_OP_SYSCALL] = "Syscall",
+ [INTEL_PT_OP_SYSRET] = "Sysret",
+};
+
+const char *intel_pt_insn_name(enum intel_pt_insn_op op)
+{
+ return branch_name[op];
+}
+
+int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
+ size_t buf_len)
+{
+ switch (intel_pt_insn->branch) {
+ case INTEL_PT_BR_CONDITIONAL:
+ case INTEL_PT_BR_UNCONDITIONAL:
+ return snprintf(buf, buf_len, "%s %s%d",
+ intel_pt_insn_name(intel_pt_insn->op),
+ intel_pt_insn->rel > 0 ? "+" : "",
+ intel_pt_insn->rel);
+ case INTEL_PT_BR_NO_BRANCH:
+ case INTEL_PT_BR_INDIRECT:
+ return snprintf(buf, buf_len, "%s",
+ intel_pt_insn_name(intel_pt_insn->op));
+ default:
+ break;
+ }
+ return 0;
+}
+
+size_t intel_pt_insn_max_size(void)
+{
+ return MAX_INSN_SIZE;
+}
+
+int intel_pt_insn_type(enum intel_pt_insn_op op)
+{
+ switch (op) {
+ case INTEL_PT_OP_OTHER:
+ return 0;
+ case INTEL_PT_OP_CALL:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL;
+ case INTEL_PT_OP_RET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN;
+ case INTEL_PT_OP_JCC:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL;
+ case INTEL_PT_OP_JMP:
+ return PERF_IP_FLAG_BRANCH;
+ case INTEL_PT_OP_LOOP:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL;
+ case INTEL_PT_OP_IRET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_INTERRUPT;
+ case INTEL_PT_OP_INT:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_INTERRUPT;
+ case INTEL_PT_OP_SYSCALL:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_SYSCALLRET;
+ case INTEL_PT_OP_SYSRET:
+ return PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_SYSCALLRET;
+ default:
+ return 0;
+ }
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
new file mode 100644
index 000000000000..b0adbf37323e
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.h
@@ -0,0 +1,65 @@
+/*
+ * intel_pt_insn_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_INSN_DECODER_H__
+#define INCLUDE__INTEL_PT_INSN_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define INTEL_PT_INSN_DESC_MAX 32
+#define INTEL_PT_INSN_DBG_BUF_SZ 16
+
+enum intel_pt_insn_op {
+ INTEL_PT_OP_OTHER,
+ INTEL_PT_OP_CALL,
+ INTEL_PT_OP_RET,
+ INTEL_PT_OP_JCC,
+ INTEL_PT_OP_JMP,
+ INTEL_PT_OP_LOOP,
+ INTEL_PT_OP_IRET,
+ INTEL_PT_OP_INT,
+ INTEL_PT_OP_SYSCALL,
+ INTEL_PT_OP_SYSRET,
+};
+
+enum intel_pt_insn_branch {
+ INTEL_PT_BR_NO_BRANCH,
+ INTEL_PT_BR_INDIRECT,
+ INTEL_PT_BR_CONDITIONAL,
+ INTEL_PT_BR_UNCONDITIONAL,
+};
+
+struct intel_pt_insn {
+ enum intel_pt_insn_op op;
+ enum intel_pt_insn_branch branch;
+ int length;
+ int32_t rel;
+ unsigned char buf[INTEL_PT_INSN_DBG_BUF_SZ];
+};
+
+int intel_pt_get_insn(const unsigned char *buf, size_t len, int x86_64,
+ struct intel_pt_insn *intel_pt_insn);
+
+const char *intel_pt_insn_name(enum intel_pt_insn_op op);
+
+int intel_pt_insn_desc(const struct intel_pt_insn *intel_pt_insn, char *buf,
+ size_t buf_len);
+
+size_t intel_pt_insn_max_size(void);
+
+int intel_pt_insn_type(enum intel_pt_insn_op op);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.c b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
new file mode 100644
index 000000000000..d09c7d9f9050
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.c
@@ -0,0 +1,155 @@
+/*
+ * intel_pt_log.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "intel-pt-log.h"
+#include "intel-pt-insn-decoder.h"
+
+#include "intel-pt-pkt-decoder.h"
+
+#define MAX_LOG_NAME 256
+
+static FILE *f;
+static char log_name[MAX_LOG_NAME];
+static bool enable_logging;
+
+void intel_pt_log_enable(void)
+{
+ enable_logging = true;
+}
+
+void intel_pt_log_disable(void)
+{
+ if (f)
+ fflush(f);
+ enable_logging = false;
+}
+
+void intel_pt_log_set_name(const char *name)
+{
+ strncpy(log_name, name, MAX_LOG_NAME - 5);
+ strcat(log_name, ".log");
+}
+
+static void intel_pt_print_data(const unsigned char *buf, int len, uint64_t pos,
+ int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < len; i++)
+ fprintf(f, " %02x", buf[i]);
+ for (; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static void intel_pt_print_no_data(uint64_t pos, int indent)
+{
+ int i;
+
+ for (i = 0; i < indent; i++)
+ fprintf(f, " ");
+
+ fprintf(f, " %08" PRIx64 ": ", pos);
+ for (i = 0; i < 16; i++)
+ fprintf(f, " ");
+ fprintf(f, " ");
+}
+
+static int intel_pt_log_open(void)
+{
+ if (!enable_logging)
+ return -1;
+
+ if (f)
+ return 0;
+
+ if (!log_name[0])
+ return -1;
+
+ f = fopen(log_name, "w+");
+ if (!f) {
+ enable_logging = false;
+ return -1;
+ }
+
+ return 0;
+}
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf)
+{
+ char desc[INTEL_PT_PKT_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_data(buf, pkt_len, pos, 0);
+ intel_pt_pkt_desc(packet, desc, INTEL_PT_PKT_DESC_MAX);
+ fprintf(f, "%s\n", desc);
+}
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+ size_t len = intel_pt_insn->length;
+
+ if (intel_pt_log_open())
+ return;
+
+ if (len > INTEL_PT_INSN_DBG_BUF_SZ)
+ len = INTEL_PT_INSN_DBG_BUF_SZ;
+ intel_pt_print_data(intel_pt_insn->buf, len, ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn, uint64_t ip)
+{
+ char desc[INTEL_PT_INSN_DESC_MAX];
+
+ if (intel_pt_log_open())
+ return;
+
+ intel_pt_print_no_data(ip, 8);
+ if (intel_pt_insn_desc(intel_pt_insn, desc, INTEL_PT_INSN_DESC_MAX) > 0)
+ fprintf(f, "%s\n", desc);
+ else
+ fprintf(f, "Bad instruction!\n");
+}
+
+void intel_pt_log(const char *fmt, ...)
+{
+ va_list args;
+
+ if (intel_pt_log_open())
+ return;
+
+ va_start(args, fmt);
+ vfprintf(f, fmt, args);
+ va_end(args);
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-log.h b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
new file mode 100644
index 000000000000..db3942f83677
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-log.h
@@ -0,0 +1,52 @@
+/*
+ * intel_pt_log.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_LOG_H__
+#define INCLUDE__INTEL_PT_LOG_H__
+
+#include <stdint.h>
+#include <inttypes.h>
+
+struct intel_pt_pkt;
+
+void intel_pt_log_enable(void);
+void intel_pt_log_disable(void);
+void intel_pt_log_set_name(const char *name);
+
+void intel_pt_log_packet(const struct intel_pt_pkt *packet, int pkt_len,
+ uint64_t pos, const unsigned char *buf);
+
+struct intel_pt_insn;
+
+void intel_pt_log_insn(struct intel_pt_insn *intel_pt_insn, uint64_t ip);
+void intel_pt_log_insn_no_data(struct intel_pt_insn *intel_pt_insn,
+ uint64_t ip);
+
+__attribute__((format(printf, 1, 2)))
+void intel_pt_log(const char *fmt, ...);
+
+#define x64_fmt "0x%" PRIx64
+
+static inline void intel_pt_log_at(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s at " x64_fmt "\n", msg, u);
+}
+
+static inline void intel_pt_log_to(const char *msg, uint64_t u)
+{
+ intel_pt_log("%s to " x64_fmt "\n", msg, u);
+}
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
new file mode 100644
index 000000000000..b1257c816310
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
@@ -0,0 +1,518 @@
+/*
+ * intel_pt_pkt_decoder.c: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <endian.h>
+#include <byteswap.h>
+
+#include "intel-pt-pkt-decoder.h"
+
+#define BIT(n) (1 << (n))
+
+#define BIT63 ((uint64_t)1 << 63)
+
+#define NR_FLAG BIT63
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define le16_to_cpu bswap_16
+#define le32_to_cpu bswap_32
+#define le64_to_cpu bswap_64
+#define memcpy_le64(d, s, n) do { \
+ memcpy((d), (s), (n)); \
+ *(d) = le64_to_cpu(*(d)); \
+} while (0)
+#else
+#define le16_to_cpu
+#define le32_to_cpu
+#define le64_to_cpu
+#define memcpy_le64 memcpy
+#endif
+
+static const char * const packet_name[] = {
+ [INTEL_PT_BAD] = "Bad Packet!",
+ [INTEL_PT_PAD] = "PAD",
+ [INTEL_PT_TNT] = "TNT",
+ [INTEL_PT_TIP_PGD] = "TIP.PGD",
+ [INTEL_PT_TIP_PGE] = "TIP.PGE",
+ [INTEL_PT_TSC] = "TSC",
+ [INTEL_PT_TMA] = "TMA",
+ [INTEL_PT_MODE_EXEC] = "MODE.Exec",
+ [INTEL_PT_MODE_TSX] = "MODE.TSX",
+ [INTEL_PT_MTC] = "MTC",
+ [INTEL_PT_TIP] = "TIP",
+ [INTEL_PT_FUP] = "FUP",
+ [INTEL_PT_CYC] = "CYC",
+ [INTEL_PT_VMCS] = "VMCS",
+ [INTEL_PT_PSB] = "PSB",
+ [INTEL_PT_PSBEND] = "PSBEND",
+ [INTEL_PT_CBR] = "CBR",
+ [INTEL_PT_TRACESTOP] = "TraceSTOP",
+ [INTEL_PT_PIP] = "PIP",
+ [INTEL_PT_OVF] = "OVF",
+ [INTEL_PT_MNT] = "MNT",
+};
+
+const char *intel_pt_pkt_name(enum intel_pt_pkt_type type)
+{
+ return packet_name[type];
+}
+
+static int intel_pt_get_long_tnt(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ uint64_t payload;
+ int count;
+
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ payload = le64_to_cpu(*(uint64_t *)buf);
+
+ for (count = 47; count; count--) {
+ if (payload & BIT63)
+ break;
+ payload <<= 1;
+ }
+
+ packet->type = INTEL_PT_TNT;
+ packet->count = count;
+ packet->payload = payload << 1;
+ return 8;
+}
+
+static int intel_pt_get_pip(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ uint64_t payload = 0;
+
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_PIP;
+ memcpy_le64(&payload, buf + 2, 6);
+ packet->payload = payload >> 1;
+ if (payload & 1)
+ packet->payload |= NR_FLAG;
+
+ return 8;
+}
+
+static int intel_pt_get_tracestop(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_TRACESTOP;
+ return 2;
+}
+
+static int intel_pt_get_cbr(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 4)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_CBR;
+ packet->payload = buf[2];
+ return 4;
+}
+
+static int intel_pt_get_vmcs(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ unsigned int count = (52 - 5) >> 3;
+
+ if (count < 1 || count > 7)
+ return INTEL_PT_BAD_PACKET;
+
+ if (len < count + 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_VMCS;
+ packet->count = count;
+ memcpy_le64(&packet->payload, buf + 2, count);
+
+ return count + 2;
+}
+
+static int intel_pt_get_ovf(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_OVF;
+ return 2;
+}
+
+static int intel_pt_get_psb(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ int i;
+
+ if (len < 16)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ for (i = 2; i < 16; i += 2) {
+ if (buf[i] != 2 || buf[i + 1] != 0x82)
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ packet->type = INTEL_PT_PSB;
+ return 16;
+}
+
+static int intel_pt_get_psbend(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_PSBEND;
+ return 2;
+}
+
+static int intel_pt_get_tma(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 7)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ packet->type = INTEL_PT_TMA;
+ packet->payload = buf[2] | (buf[3] << 8);
+ packet->count = buf[5] | ((buf[6] & BIT(0)) << 8);
+ return 7;
+}
+
+static int intel_pt_get_pad(struct intel_pt_pkt *packet)
+{
+ packet->type = INTEL_PT_PAD;
+ return 1;
+}
+
+static int intel_pt_get_mnt(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 11)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_MNT;
+ memcpy_le64(&packet->payload, buf + 3, 8);
+ return 11
+;
+}
+
+static int intel_pt_get_3byte(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 3)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[2]) {
+ case 0x88: /* MNT */
+ return intel_pt_get_mnt(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+static int intel_pt_get_ext(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[1]) {
+ case 0xa3: /* Long TNT */
+ return intel_pt_get_long_tnt(buf, len, packet);
+ case 0x43: /* PIP */
+ return intel_pt_get_pip(buf, len, packet);
+ case 0x83: /* TraceStop */
+ return intel_pt_get_tracestop(packet);
+ case 0x03: /* CBR */
+ return intel_pt_get_cbr(buf, len, packet);
+ case 0xc8: /* VMCS */
+ return intel_pt_get_vmcs(buf, len, packet);
+ case 0xf3: /* OVF */
+ return intel_pt_get_ovf(packet);
+ case 0x82: /* PSB */
+ return intel_pt_get_psb(buf, len, packet);
+ case 0x23: /* PSBEND */
+ return intel_pt_get_psbend(packet);
+ case 0x73: /* TMA */
+ return intel_pt_get_tma(buf, len, packet);
+ case 0xC3: /* 3-byte header */
+ return intel_pt_get_3byte(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+static int intel_pt_get_short_tnt(unsigned int byte,
+ struct intel_pt_pkt *packet)
+{
+ int count;
+
+ for (count = 6; count; count--) {
+ if (byte & BIT(7))
+ break;
+ byte <<= 1;
+ }
+
+ packet->type = INTEL_PT_TNT;
+ packet->count = count;
+ packet->payload = (uint64_t)byte << 57;
+
+ return 1;
+}
+
+static int intel_pt_get_cyc(unsigned int byte, const unsigned char *buf,
+ size_t len, struct intel_pt_pkt *packet)
+{
+ unsigned int offs = 1, shift;
+ uint64_t payload = byte >> 3;
+
+ byte >>= 2;
+ len -= 1;
+ for (shift = 5; byte & 1; shift += 7) {
+ if (offs > 9)
+ return INTEL_PT_BAD_PACKET;
+ if (len < offs)
+ return INTEL_PT_NEED_MORE_BYTES;
+ byte = buf[offs++];
+ payload |= (byte >> 1) << shift;
+ }
+
+ packet->type = INTEL_PT_CYC;
+ packet->payload = payload;
+ return offs;
+}
+
+static int intel_pt_get_ip(enum intel_pt_pkt_type type, unsigned int byte,
+ const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ switch (byte >> 5) {
+ case 0:
+ packet->count = 0;
+ break;
+ case 1:
+ if (len < 3)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 2;
+ packet->payload = le16_to_cpu(*(uint16_t *)(buf + 1));
+ break;
+ case 2:
+ if (len < 5)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 4;
+ packet->payload = le32_to_cpu(*(uint32_t *)(buf + 1));
+ break;
+ case 3:
+ case 6:
+ if (len < 7)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->count = 6;
+ memcpy_le64(&packet->payload, buf + 1, 6);
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ packet->type = type;
+
+ return packet->count + 1;
+}
+
+static int intel_pt_get_mode(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ switch (buf[1] >> 5) {
+ case 0:
+ packet->type = INTEL_PT_MODE_EXEC;
+ switch (buf[1] & 3) {
+ case 0:
+ packet->payload = 16;
+ break;
+ case 1:
+ packet->payload = 64;
+ break;
+ case 2:
+ packet->payload = 32;
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+ break;
+ case 1:
+ packet->type = INTEL_PT_MODE_TSX;
+ if ((buf[1] & 3) == 3)
+ return INTEL_PT_BAD_PACKET;
+ packet->payload = buf[1] & 3;
+ break;
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+
+ return 2;
+}
+
+static int intel_pt_get_tsc(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 8)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_TSC;
+ memcpy_le64(&packet->payload, buf + 1, 7);
+ return 8;
+}
+
+static int intel_pt_get_mtc(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ if (len < 2)
+ return INTEL_PT_NEED_MORE_BYTES;
+ packet->type = INTEL_PT_MTC;
+ packet->payload = buf[1];
+ return 2;
+}
+
+static int intel_pt_do_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ unsigned int byte;
+
+ memset(packet, 0, sizeof(struct intel_pt_pkt));
+
+ if (!len)
+ return INTEL_PT_NEED_MORE_BYTES;
+
+ byte = buf[0];
+ if (!(byte & BIT(0))) {
+ if (byte == 0)
+ return intel_pt_get_pad(packet);
+ if (byte == 2)
+ return intel_pt_get_ext(buf, len, packet);
+ return intel_pt_get_short_tnt(byte, packet);
+ }
+
+ if ((byte & 2))
+ return intel_pt_get_cyc(byte, buf, len, packet);
+
+ switch (byte & 0x1f) {
+ case 0x0D:
+ return intel_pt_get_ip(INTEL_PT_TIP, byte, buf, len, packet);
+ case 0x11:
+ return intel_pt_get_ip(INTEL_PT_TIP_PGE, byte, buf, len,
+ packet);
+ case 0x01:
+ return intel_pt_get_ip(INTEL_PT_TIP_PGD, byte, buf, len,
+ packet);
+ case 0x1D:
+ return intel_pt_get_ip(INTEL_PT_FUP, byte, buf, len, packet);
+ case 0x19:
+ switch (byte) {
+ case 0x99:
+ return intel_pt_get_mode(buf, len, packet);
+ case 0x19:
+ return intel_pt_get_tsc(buf, len, packet);
+ case 0x59:
+ return intel_pt_get_mtc(buf, len, packet);
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+ default:
+ return INTEL_PT_BAD_PACKET;
+ }
+}
+
+int intel_pt_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet)
+{
+ int ret;
+
+ ret = intel_pt_do_get_packet(buf, len, packet);
+ if (ret > 0) {
+ while (ret < 8 && len > (size_t)ret && !buf[ret])
+ ret += 1;
+ }
+ return ret;
+}
+
+int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf,
+ size_t buf_len)
+{
+ int ret, i, nr;
+ unsigned long long payload = packet->payload;
+ const char *name = intel_pt_pkt_name(packet->type);
+
+ switch (packet->type) {
+ case INTEL_PT_BAD:
+ case INTEL_PT_PAD:
+ case INTEL_PT_PSB:
+ case INTEL_PT_PSBEND:
+ case INTEL_PT_TRACESTOP:
+ case INTEL_PT_OVF:
+ return snprintf(buf, buf_len, "%s", name);
+ case INTEL_PT_TNT: {
+ size_t blen = buf_len;
+
+ ret = snprintf(buf, blen, "%s ", name);
+ if (ret < 0)
+ return ret;
+ buf += ret;
+ blen -= ret;
+ for (i = 0; i < packet->count; i++) {
+ if (payload & BIT63)
+ ret = snprintf(buf, blen, "T");
+ else
+ ret = snprintf(buf, blen, "N");
+ if (ret < 0)
+ return ret;
+ buf += ret;
+ blen -= ret;
+ payload <<= 1;
+ }
+ ret = snprintf(buf, blen, " (%d)", packet->count);
+ if (ret < 0)
+ return ret;
+ blen -= ret;
+ return buf_len - blen;
+ }
+ case INTEL_PT_TIP_PGD:
+ case INTEL_PT_TIP_PGE:
+ case INTEL_PT_TIP:
+ case INTEL_PT_FUP:
+ if (!(packet->count))
+ return snprintf(buf, buf_len, "%s no ip", name);
+ case INTEL_PT_CYC:
+ case INTEL_PT_VMCS:
+ case INTEL_PT_MTC:
+ case INTEL_PT_MNT:
+ case INTEL_PT_CBR:
+ case INTEL_PT_TSC:
+ return snprintf(buf, buf_len, "%s 0x%llx", name, payload);
+ case INTEL_PT_TMA:
+ return snprintf(buf, buf_len, "%s CTC 0x%x FC 0x%x", name,
+ (unsigned)payload, packet->count);
+ case INTEL_PT_MODE_EXEC:
+ return snprintf(buf, buf_len, "%s %lld", name, payload);
+ case INTEL_PT_MODE_TSX:
+ return snprintf(buf, buf_len, "%s TXAbort:%u InTX:%u",
+ name, (unsigned)(payload >> 1) & 1,
+ (unsigned)payload & 1);
+ case INTEL_PT_PIP:
+ nr = packet->payload & NR_FLAG ? 1 : 0;
+ payload &= ~NR_FLAG;
+ ret = snprintf(buf, buf_len, "%s 0x%llx (NR=%d)",
+ name, payload, nr);
+ return ret;
+ default:
+ break;
+ }
+ return snprintf(buf, buf_len, "%s 0x%llx (%d)",
+ name, payload, packet->count);
+}
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
new file mode 100644
index 000000000000..781bb79883bd
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.h
@@ -0,0 +1,70 @@
+/*
+ * intel_pt_pkt_decoder.h: Intel Processor Trace support
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__INTEL_PT_PKT_DECODER_H__
+#define INCLUDE__INTEL_PT_PKT_DECODER_H__
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define INTEL_PT_PKT_DESC_MAX 256
+
+#define INTEL_PT_NEED_MORE_BYTES -1
+#define INTEL_PT_BAD_PACKET -2
+
+#define INTEL_PT_PSB_STR "\002\202\002\202\002\202\002\202" \
+ "\002\202\002\202\002\202\002\202"
+#define INTEL_PT_PSB_LEN 16
+
+#define INTEL_PT_PKT_MAX_SZ 16
+
+enum intel_pt_pkt_type {
+ INTEL_PT_BAD,
+ INTEL_PT_PAD,
+ INTEL_PT_TNT,
+ INTEL_PT_TIP_PGD,
+ INTEL_PT_TIP_PGE,
+ INTEL_PT_TSC,
+ INTEL_PT_TMA,
+ INTEL_PT_MODE_EXEC,
+ INTEL_PT_MODE_TSX,
+ INTEL_PT_MTC,
+ INTEL_PT_TIP,
+ INTEL_PT_FUP,
+ INTEL_PT_CYC,
+ INTEL_PT_VMCS,
+ INTEL_PT_PSB,
+ INTEL_PT_PSBEND,
+ INTEL_PT_CBR,
+ INTEL_PT_TRACESTOP,
+ INTEL_PT_PIP,
+ INTEL_PT_OVF,
+ INTEL_PT_MNT,
+};
+
+struct intel_pt_pkt {
+ enum intel_pt_pkt_type type;
+ int count;
+ uint64_t payload;
+};
+
+const char *intel_pt_pkt_name(enum intel_pt_pkt_type);
+
+int intel_pt_get_packet(const unsigned char *buf, size_t len,
+ struct intel_pt_pkt *packet);
+
+int intel_pt_pkt_desc(const struct intel_pt_pkt *packet, char *buf, size_t len);
+
+#endif
diff --git a/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
new file mode 100644
index 000000000000..816488c0b97e
--- /dev/null
+++ b/tools/perf/util/intel-pt-decoder/x86-opcode-map.txt
@@ -0,0 +1,970 @@
+# x86 Opcode Maps
+#
+# This is (mostly) based on following documentations.
+# - Intel(R) 64 and IA-32 Architectures Software Developer's Manual Vol.2C
+# (#326018-047US, June 2013)
+#
+#<Opcode maps>
+# Table: table-name
+# Referrer: escaped-name
+# AVXcode: avx-code
+# opcode: mnemonic|GrpXXX [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
+# (or)
+# opcode: escape # escaped-name
+# EndTable
+#
+#<group maps>
+# GrpTable: GrpXXX
+# reg: mnemonic [operand1[,operand2...]] [(extra1)[,(extra2)...] [| 2nd-mnemonic ...]
+# EndTable
+#
+# AVX Superscripts
+# (v): this opcode requires VEX prefix.
+# (v1): this opcode only supports 128bit VEX.
+#
+# Last Prefix Superscripts
+# - (66): the last prefix is 0x66
+# - (F3): the last prefix is 0xF3
+# - (F2): the last prefix is 0xF2
+# - (!F3) : the last prefix is not 0xF3 (including non-last prefix case)
+# - (66&F2): Both 0x66 and 0xF2 prefixes are specified.
+
+Table: one byte opcode
+Referrer:
+AVXcode:
+# 0x00 - 0x0f
+00: ADD Eb,Gb
+01: ADD Ev,Gv
+02: ADD Gb,Eb
+03: ADD Gv,Ev
+04: ADD AL,Ib
+05: ADD rAX,Iz
+06: PUSH ES (i64)
+07: POP ES (i64)
+08: OR Eb,Gb
+09: OR Ev,Gv
+0a: OR Gb,Eb
+0b: OR Gv,Ev
+0c: OR AL,Ib
+0d: OR rAX,Iz
+0e: PUSH CS (i64)
+0f: escape # 2-byte escape
+# 0x10 - 0x1f
+10: ADC Eb,Gb
+11: ADC Ev,Gv
+12: ADC Gb,Eb
+13: ADC Gv,Ev
+14: ADC AL,Ib
+15: ADC rAX,Iz
+16: PUSH SS (i64)
+17: POP SS (i64)
+18: SBB Eb,Gb
+19: SBB Ev,Gv
+1a: SBB Gb,Eb
+1b: SBB Gv,Ev
+1c: SBB AL,Ib
+1d: SBB rAX,Iz
+1e: PUSH DS (i64)
+1f: POP DS (i64)
+# 0x20 - 0x2f
+20: AND Eb,Gb
+21: AND Ev,Gv
+22: AND Gb,Eb
+23: AND Gv,Ev
+24: AND AL,Ib
+25: AND rAx,Iz
+26: SEG=ES (Prefix)
+27: DAA (i64)
+28: SUB Eb,Gb
+29: SUB Ev,Gv
+2a: SUB Gb,Eb
+2b: SUB Gv,Ev
+2c: SUB AL,Ib
+2d: SUB rAX,Iz
+2e: SEG=CS (Prefix)
+2f: DAS (i64)
+# 0x30 - 0x3f
+30: XOR Eb,Gb
+31: XOR Ev,Gv
+32: XOR Gb,Eb
+33: XOR Gv,Ev
+34: XOR AL,Ib
+35: XOR rAX,Iz
+36: SEG=SS (Prefix)
+37: AAA (i64)
+38: CMP Eb,Gb
+39: CMP Ev,Gv
+3a: CMP Gb,Eb
+3b: CMP Gv,Ev
+3c: CMP AL,Ib
+3d: CMP rAX,Iz
+3e: SEG=DS (Prefix)
+3f: AAS (i64)
+# 0x40 - 0x4f
+40: INC eAX (i64) | REX (o64)
+41: INC eCX (i64) | REX.B (o64)
+42: INC eDX (i64) | REX.X (o64)
+43: INC eBX (i64) | REX.XB (o64)
+44: INC eSP (i64) | REX.R (o64)
+45: INC eBP (i64) | REX.RB (o64)
+46: INC eSI (i64) | REX.RX (o64)
+47: INC eDI (i64) | REX.RXB (o64)
+48: DEC eAX (i64) | REX.W (o64)
+49: DEC eCX (i64) | REX.WB (o64)
+4a: DEC eDX (i64) | REX.WX (o64)
+4b: DEC eBX (i64) | REX.WXB (o64)
+4c: DEC eSP (i64) | REX.WR (o64)
+4d: DEC eBP (i64) | REX.WRB (o64)
+4e: DEC eSI (i64) | REX.WRX (o64)
+4f: DEC eDI (i64) | REX.WRXB (o64)
+# 0x50 - 0x5f
+50: PUSH rAX/r8 (d64)
+51: PUSH rCX/r9 (d64)
+52: PUSH rDX/r10 (d64)
+53: PUSH rBX/r11 (d64)
+54: PUSH rSP/r12 (d64)
+55: PUSH rBP/r13 (d64)
+56: PUSH rSI/r14 (d64)
+57: PUSH rDI/r15 (d64)
+58: POP rAX/r8 (d64)
+59: POP rCX/r9 (d64)
+5a: POP rDX/r10 (d64)
+5b: POP rBX/r11 (d64)
+5c: POP rSP/r12 (d64)
+5d: POP rBP/r13 (d64)
+5e: POP rSI/r14 (d64)
+5f: POP rDI/r15 (d64)
+# 0x60 - 0x6f
+60: PUSHA/PUSHAD (i64)
+61: POPA/POPAD (i64)
+62: BOUND Gv,Ma (i64)
+63: ARPL Ew,Gw (i64) | MOVSXD Gv,Ev (o64)
+64: SEG=FS (Prefix)
+65: SEG=GS (Prefix)
+66: Operand-Size (Prefix)
+67: Address-Size (Prefix)
+68: PUSH Iz (d64)
+69: IMUL Gv,Ev,Iz
+6a: PUSH Ib (d64)
+6b: IMUL Gv,Ev,Ib
+6c: INS/INSB Yb,DX
+6d: INS/INSW/INSD Yz,DX
+6e: OUTS/OUTSB DX,Xb
+6f: OUTS/OUTSW/OUTSD DX,Xz
+# 0x70 - 0x7f
+70: JO Jb
+71: JNO Jb
+72: JB/JNAE/JC Jb
+73: JNB/JAE/JNC Jb
+74: JZ/JE Jb
+75: JNZ/JNE Jb
+76: JBE/JNA Jb
+77: JNBE/JA Jb
+78: JS Jb
+79: JNS Jb
+7a: JP/JPE Jb
+7b: JNP/JPO Jb
+7c: JL/JNGE Jb
+7d: JNL/JGE Jb
+7e: JLE/JNG Jb
+7f: JNLE/JG Jb
+# 0x80 - 0x8f
+80: Grp1 Eb,Ib (1A)
+81: Grp1 Ev,Iz (1A)
+82: Grp1 Eb,Ib (1A),(i64)
+83: Grp1 Ev,Ib (1A)
+84: TEST Eb,Gb
+85: TEST Ev,Gv
+86: XCHG Eb,Gb
+87: XCHG Ev,Gv
+88: MOV Eb,Gb
+89: MOV Ev,Gv
+8a: MOV Gb,Eb
+8b: MOV Gv,Ev
+8c: MOV Ev,Sw
+8d: LEA Gv,M
+8e: MOV Sw,Ew
+8f: Grp1A (1A) | POP Ev (d64)
+# 0x90 - 0x9f
+90: NOP | PAUSE (F3) | XCHG r8,rAX
+91: XCHG rCX/r9,rAX
+92: XCHG rDX/r10,rAX
+93: XCHG rBX/r11,rAX
+94: XCHG rSP/r12,rAX
+95: XCHG rBP/r13,rAX
+96: XCHG rSI/r14,rAX
+97: XCHG rDI/r15,rAX
+98: CBW/CWDE/CDQE
+99: CWD/CDQ/CQO
+9a: CALLF Ap (i64)
+9b: FWAIT/WAIT
+9c: PUSHF/D/Q Fv (d64)
+9d: POPF/D/Q Fv (d64)
+9e: SAHF
+9f: LAHF
+# 0xa0 - 0xaf
+a0: MOV AL,Ob
+a1: MOV rAX,Ov
+a2: MOV Ob,AL
+a3: MOV Ov,rAX
+a4: MOVS/B Yb,Xb
+a5: MOVS/W/D/Q Yv,Xv
+a6: CMPS/B Xb,Yb
+a7: CMPS/W/D Xv,Yv
+a8: TEST AL,Ib
+a9: TEST rAX,Iz
+aa: STOS/B Yb,AL
+ab: STOS/W/D/Q Yv,rAX
+ac: LODS/B AL,Xb
+ad: LODS/W/D/Q rAX,Xv
+ae: SCAS/B AL,Yb
+# Note: The May 2011 Intel manual shows Xv for the second parameter of the
+# next instruction but Yv is correct
+af: SCAS/W/D/Q rAX,Yv
+# 0xb0 - 0xbf
+b0: MOV AL/R8L,Ib
+b1: MOV CL/R9L,Ib
+b2: MOV DL/R10L,Ib
+b3: MOV BL/R11L,Ib
+b4: MOV AH/R12L,Ib
+b5: MOV CH/R13L,Ib
+b6: MOV DH/R14L,Ib
+b7: MOV BH/R15L,Ib
+b8: MOV rAX/r8,Iv
+b9: MOV rCX/r9,Iv
+ba: MOV rDX/r10,Iv
+bb: MOV rBX/r11,Iv
+bc: MOV rSP/r12,Iv
+bd: MOV rBP/r13,Iv
+be: MOV rSI/r14,Iv
+bf: MOV rDI/r15,Iv
+# 0xc0 - 0xcf
+c0: Grp2 Eb,Ib (1A)
+c1: Grp2 Ev,Ib (1A)
+c2: RETN Iw (f64)
+c3: RETN
+c4: LES Gz,Mp (i64) | VEX+2byte (Prefix)
+c5: LDS Gz,Mp (i64) | VEX+1byte (Prefix)
+c6: Grp11A Eb,Ib (1A)
+c7: Grp11B Ev,Iz (1A)
+c8: ENTER Iw,Ib
+c9: LEAVE (d64)
+ca: RETF Iw
+cb: RETF
+cc: INT3
+cd: INT Ib
+ce: INTO (i64)
+cf: IRET/D/Q
+# 0xd0 - 0xdf
+d0: Grp2 Eb,1 (1A)
+d1: Grp2 Ev,1 (1A)
+d2: Grp2 Eb,CL (1A)
+d3: Grp2 Ev,CL (1A)
+d4: AAM Ib (i64)
+d5: AAD Ib (i64)
+d6:
+d7: XLAT/XLATB
+d8: ESC
+d9: ESC
+da: ESC
+db: ESC
+dc: ESC
+dd: ESC
+de: ESC
+df: ESC
+# 0xe0 - 0xef
+# Note: "forced64" is Intel CPU behavior: they ignore 0x66 prefix
+# in 64-bit mode. AMD CPUs accept 0x66 prefix, it causes RIP truncation
+# to 16 bits. In 32-bit mode, 0x66 is accepted by both Intel and AMD.
+e0: LOOPNE/LOOPNZ Jb (f64)
+e1: LOOPE/LOOPZ Jb (f64)
+e2: LOOP Jb (f64)
+e3: JrCXZ Jb (f64)
+e4: IN AL,Ib
+e5: IN eAX,Ib
+e6: OUT Ib,AL
+e7: OUT Ib,eAX
+# With 0x66 prefix in 64-bit mode, for AMD CPUs immediate offset
+# in "near" jumps and calls is 16-bit. For CALL,
+# push of return address is 16-bit wide, RSP is decremented by 2
+# but is not truncated to 16 bits, unlike RIP.
+e8: CALL Jz (f64)
+e9: JMP-near Jz (f64)
+ea: JMP-far Ap (i64)
+eb: JMP-short Jb (f64)
+ec: IN AL,DX
+ed: IN eAX,DX
+ee: OUT DX,AL
+ef: OUT DX,eAX
+# 0xf0 - 0xff
+f0: LOCK (Prefix)
+f1:
+f2: REPNE (Prefix) | XACQUIRE (Prefix)
+f3: REP/REPE (Prefix) | XRELEASE (Prefix)
+f4: HLT
+f5: CMC
+f6: Grp3_1 Eb (1A)
+f7: Grp3_2 Ev (1A)
+f8: CLC
+f9: STC
+fa: CLI
+fb: STI
+fc: CLD
+fd: STD
+fe: Grp4 (1A)
+ff: Grp5 (1A)
+EndTable
+
+Table: 2-byte opcode (0x0f)
+Referrer: 2-byte escape
+AVXcode: 1
+# 0x0f 0x00-0x0f
+00: Grp6 (1A)
+01: Grp7 (1A)
+02: LAR Gv,Ew
+03: LSL Gv,Ew
+04:
+05: SYSCALL (o64)
+06: CLTS
+07: SYSRET (o64)
+08: INVD
+09: WBINVD
+0a:
+0b: UD2 (1B)
+0c:
+# AMD's prefetch group. Intel supports prefetchw(/1) only.
+0d: GrpP
+0e: FEMMS
+# 3DNow! uses the last imm byte as opcode extension.
+0f: 3DNow! Pq,Qq,Ib
+# 0x0f 0x10-0x1f
+# NOTE: According to Intel SDM opcode map, vmovups and vmovupd has no operands
+# but it actually has operands. And also, vmovss and vmovsd only accept 128bit.
+# MOVSS/MOVSD has too many forms(3) on SDM. This map just shows a typical form.
+# Many AVX instructions lack v1 superscript, according to Intel AVX-Prgramming
+# Reference A.1
+10: vmovups Vps,Wps | vmovupd Vpd,Wpd (66) | vmovss Vx,Hx,Wss (F3),(v1) | vmovsd Vx,Hx,Wsd (F2),(v1)
+11: vmovups Wps,Vps | vmovupd Wpd,Vpd (66) | vmovss Wss,Hx,Vss (F3),(v1) | vmovsd Wsd,Hx,Vsd (F2),(v1)
+12: vmovlps Vq,Hq,Mq (v1) | vmovhlps Vq,Hq,Uq (v1) | vmovlpd Vq,Hq,Mq (66),(v1) | vmovsldup Vx,Wx (F3) | vmovddup Vx,Wx (F2)
+13: vmovlps Mq,Vq (v1) | vmovlpd Mq,Vq (66),(v1)
+14: vunpcklps Vx,Hx,Wx | vunpcklpd Vx,Hx,Wx (66)
+15: vunpckhps Vx,Hx,Wx | vunpckhpd Vx,Hx,Wx (66)
+16: vmovhps Vdq,Hq,Mq (v1) | vmovlhps Vdq,Hq,Uq (v1) | vmovhpd Vdq,Hq,Mq (66),(v1) | vmovshdup Vx,Wx (F3)
+17: vmovhps Mq,Vq (v1) | vmovhpd Mq,Vq (66),(v1)
+18: Grp16 (1A)
+19:
+1a: BNDCL Ev,Gv | BNDCU Ev,Gv | BNDMOV Gv,Ev | BNDLDX Gv,Ev,Gv
+1b: BNDCN Ev,Gv | BNDMOV Ev,Gv | BNDMK Gv,Ev | BNDSTX Ev,GV,Gv
+1c:
+1d:
+1e:
+1f: NOP Ev
+# 0x0f 0x20-0x2f
+20: MOV Rd,Cd
+21: MOV Rd,Dd
+22: MOV Cd,Rd
+23: MOV Dd,Rd
+24:
+25:
+26:
+27:
+28: vmovaps Vps,Wps | vmovapd Vpd,Wpd (66)
+29: vmovaps Wps,Vps | vmovapd Wpd,Vpd (66)
+2a: cvtpi2ps Vps,Qpi | cvtpi2pd Vpd,Qpi (66) | vcvtsi2ss Vss,Hss,Ey (F3),(v1) | vcvtsi2sd Vsd,Hsd,Ey (F2),(v1)
+2b: vmovntps Mps,Vps | vmovntpd Mpd,Vpd (66)
+2c: cvttps2pi Ppi,Wps | cvttpd2pi Ppi,Wpd (66) | vcvttss2si Gy,Wss (F3),(v1) | vcvttsd2si Gy,Wsd (F2),(v1)
+2d: cvtps2pi Ppi,Wps | cvtpd2pi Qpi,Wpd (66) | vcvtss2si Gy,Wss (F3),(v1) | vcvtsd2si Gy,Wsd (F2),(v1)
+2e: vucomiss Vss,Wss (v1) | vucomisd Vsd,Wsd (66),(v1)
+2f: vcomiss Vss,Wss (v1) | vcomisd Vsd,Wsd (66),(v1)
+# 0x0f 0x30-0x3f
+30: WRMSR
+31: RDTSC
+32: RDMSR
+33: RDPMC
+34: SYSENTER
+35: SYSEXIT
+36:
+37: GETSEC
+38: escape # 3-byte escape 1
+39:
+3a: escape # 3-byte escape 2
+3b:
+3c:
+3d:
+3e:
+3f:
+# 0x0f 0x40-0x4f
+40: CMOVO Gv,Ev
+41: CMOVNO Gv,Ev
+42: CMOVB/C/NAE Gv,Ev
+43: CMOVAE/NB/NC Gv,Ev
+44: CMOVE/Z Gv,Ev
+45: CMOVNE/NZ Gv,Ev
+46: CMOVBE/NA Gv,Ev
+47: CMOVA/NBE Gv,Ev
+48: CMOVS Gv,Ev
+49: CMOVNS Gv,Ev
+4a: CMOVP/PE Gv,Ev
+4b: CMOVNP/PO Gv,Ev
+4c: CMOVL/NGE Gv,Ev
+4d: CMOVNL/GE Gv,Ev
+4e: CMOVLE/NG Gv,Ev
+4f: CMOVNLE/G Gv,Ev
+# 0x0f 0x50-0x5f
+50: vmovmskps Gy,Ups | vmovmskpd Gy,Upd (66)
+51: vsqrtps Vps,Wps | vsqrtpd Vpd,Wpd (66) | vsqrtss Vss,Hss,Wss (F3),(v1) | vsqrtsd Vsd,Hsd,Wsd (F2),(v1)
+52: vrsqrtps Vps,Wps | vrsqrtss Vss,Hss,Wss (F3),(v1)
+53: vrcpps Vps,Wps | vrcpss Vss,Hss,Wss (F3),(v1)
+54: vandps Vps,Hps,Wps | vandpd Vpd,Hpd,Wpd (66)
+55: vandnps Vps,Hps,Wps | vandnpd Vpd,Hpd,Wpd (66)
+56: vorps Vps,Hps,Wps | vorpd Vpd,Hpd,Wpd (66)
+57: vxorps Vps,Hps,Wps | vxorpd Vpd,Hpd,Wpd (66)
+58: vaddps Vps,Hps,Wps | vaddpd Vpd,Hpd,Wpd (66) | vaddss Vss,Hss,Wss (F3),(v1) | vaddsd Vsd,Hsd,Wsd (F2),(v1)
+59: vmulps Vps,Hps,Wps | vmulpd Vpd,Hpd,Wpd (66) | vmulss Vss,Hss,Wss (F3),(v1) | vmulsd Vsd,Hsd,Wsd (F2),(v1)
+5a: vcvtps2pd Vpd,Wps | vcvtpd2ps Vps,Wpd (66) | vcvtss2sd Vsd,Hx,Wss (F3),(v1) | vcvtsd2ss Vss,Hx,Wsd (F2),(v1)
+5b: vcvtdq2ps Vps,Wdq | vcvtps2dq Vdq,Wps (66) | vcvttps2dq Vdq,Wps (F3)
+5c: vsubps Vps,Hps,Wps | vsubpd Vpd,Hpd,Wpd (66) | vsubss Vss,Hss,Wss (F3),(v1) | vsubsd Vsd,Hsd,Wsd (F2),(v1)
+5d: vminps Vps,Hps,Wps | vminpd Vpd,Hpd,Wpd (66) | vminss Vss,Hss,Wss (F3),(v1) | vminsd Vsd,Hsd,Wsd (F2),(v1)
+5e: vdivps Vps,Hps,Wps | vdivpd Vpd,Hpd,Wpd (66) | vdivss Vss,Hss,Wss (F3),(v1) | vdivsd Vsd,Hsd,Wsd (F2),(v1)
+5f: vmaxps Vps,Hps,Wps | vmaxpd Vpd,Hpd,Wpd (66) | vmaxss Vss,Hss,Wss (F3),(v1) | vmaxsd Vsd,Hsd,Wsd (F2),(v1)
+# 0x0f 0x60-0x6f
+60: punpcklbw Pq,Qd | vpunpcklbw Vx,Hx,Wx (66),(v1)
+61: punpcklwd Pq,Qd | vpunpcklwd Vx,Hx,Wx (66),(v1)
+62: punpckldq Pq,Qd | vpunpckldq Vx,Hx,Wx (66),(v1)
+63: packsswb Pq,Qq | vpacksswb Vx,Hx,Wx (66),(v1)
+64: pcmpgtb Pq,Qq | vpcmpgtb Vx,Hx,Wx (66),(v1)
+65: pcmpgtw Pq,Qq | vpcmpgtw Vx,Hx,Wx (66),(v1)
+66: pcmpgtd Pq,Qq | vpcmpgtd Vx,Hx,Wx (66),(v1)
+67: packuswb Pq,Qq | vpackuswb Vx,Hx,Wx (66),(v1)
+68: punpckhbw Pq,Qd | vpunpckhbw Vx,Hx,Wx (66),(v1)
+69: punpckhwd Pq,Qd | vpunpckhwd Vx,Hx,Wx (66),(v1)
+6a: punpckhdq Pq,Qd | vpunpckhdq Vx,Hx,Wx (66),(v1)
+6b: packssdw Pq,Qd | vpackssdw Vx,Hx,Wx (66),(v1)
+6c: vpunpcklqdq Vx,Hx,Wx (66),(v1)
+6d: vpunpckhqdq Vx,Hx,Wx (66),(v1)
+6e: movd/q Pd,Ey | vmovd/q Vy,Ey (66),(v1)
+6f: movq Pq,Qq | vmovdqa Vx,Wx (66) | vmovdqu Vx,Wx (F3)
+# 0x0f 0x70-0x7f
+70: pshufw Pq,Qq,Ib | vpshufd Vx,Wx,Ib (66),(v1) | vpshufhw Vx,Wx,Ib (F3),(v1) | vpshuflw Vx,Wx,Ib (F2),(v1)
+71: Grp12 (1A)
+72: Grp13 (1A)
+73: Grp14 (1A)
+74: pcmpeqb Pq,Qq | vpcmpeqb Vx,Hx,Wx (66),(v1)
+75: pcmpeqw Pq,Qq | vpcmpeqw Vx,Hx,Wx (66),(v1)
+76: pcmpeqd Pq,Qq | vpcmpeqd Vx,Hx,Wx (66),(v1)
+# Note: Remove (v), because vzeroall and vzeroupper becomes emms without VEX.
+77: emms | vzeroupper | vzeroall
+78: VMREAD Ey,Gy
+79: VMWRITE Gy,Ey
+7a:
+7b:
+7c: vhaddpd Vpd,Hpd,Wpd (66) | vhaddps Vps,Hps,Wps (F2)
+7d: vhsubpd Vpd,Hpd,Wpd (66) | vhsubps Vps,Hps,Wps (F2)
+7e: movd/q Ey,Pd | vmovd/q Ey,Vy (66),(v1) | vmovq Vq,Wq (F3),(v1)
+7f: movq Qq,Pq | vmovdqa Wx,Vx (66) | vmovdqu Wx,Vx (F3)
+# 0x0f 0x80-0x8f
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
+80: JO Jz (f64)
+81: JNO Jz (f64)
+82: JB/JC/JNAE Jz (f64)
+83: JAE/JNB/JNC Jz (f64)
+84: JE/JZ Jz (f64)
+85: JNE/JNZ Jz (f64)
+86: JBE/JNA Jz (f64)
+87: JA/JNBE Jz (f64)
+88: JS Jz (f64)
+89: JNS Jz (f64)
+8a: JP/JPE Jz (f64)
+8b: JNP/JPO Jz (f64)
+8c: JL/JNGE Jz (f64)
+8d: JNL/JGE Jz (f64)
+8e: JLE/JNG Jz (f64)
+8f: JNLE/JG Jz (f64)
+# 0x0f 0x90-0x9f
+90: SETO Eb
+91: SETNO Eb
+92: SETB/C/NAE Eb
+93: SETAE/NB/NC Eb
+94: SETE/Z Eb
+95: SETNE/NZ Eb
+96: SETBE/NA Eb
+97: SETA/NBE Eb
+98: SETS Eb
+99: SETNS Eb
+9a: SETP/PE Eb
+9b: SETNP/PO Eb
+9c: SETL/NGE Eb
+9d: SETNL/GE Eb
+9e: SETLE/NG Eb
+9f: SETNLE/G Eb
+# 0x0f 0xa0-0xaf
+a0: PUSH FS (d64)
+a1: POP FS (d64)
+a2: CPUID
+a3: BT Ev,Gv
+a4: SHLD Ev,Gv,Ib
+a5: SHLD Ev,Gv,CL
+a6: GrpPDLK
+a7: GrpRNG
+a8: PUSH GS (d64)
+a9: POP GS (d64)
+aa: RSM
+ab: BTS Ev,Gv
+ac: SHRD Ev,Gv,Ib
+ad: SHRD Ev,Gv,CL
+ae: Grp15 (1A),(1C)
+af: IMUL Gv,Ev
+# 0x0f 0xb0-0xbf
+b0: CMPXCHG Eb,Gb
+b1: CMPXCHG Ev,Gv
+b2: LSS Gv,Mp
+b3: BTR Ev,Gv
+b4: LFS Gv,Mp
+b5: LGS Gv,Mp
+b6: MOVZX Gv,Eb
+b7: MOVZX Gv,Ew
+b8: JMPE (!F3) | POPCNT Gv,Ev (F3)
+b9: Grp10 (1A)
+ba: Grp8 Ev,Ib (1A)
+bb: BTC Ev,Gv
+bc: BSF Gv,Ev (!F3) | TZCNT Gv,Ev (F3)
+bd: BSR Gv,Ev (!F3) | LZCNT Gv,Ev (F3)
+be: MOVSX Gv,Eb
+bf: MOVSX Gv,Ew
+# 0x0f 0xc0-0xcf
+c0: XADD Eb,Gb
+c1: XADD Ev,Gv
+c2: vcmpps Vps,Hps,Wps,Ib | vcmppd Vpd,Hpd,Wpd,Ib (66) | vcmpss Vss,Hss,Wss,Ib (F3),(v1) | vcmpsd Vsd,Hsd,Wsd,Ib (F2),(v1)
+c3: movnti My,Gy
+c4: pinsrw Pq,Ry/Mw,Ib | vpinsrw Vdq,Hdq,Ry/Mw,Ib (66),(v1)
+c5: pextrw Gd,Nq,Ib | vpextrw Gd,Udq,Ib (66),(v1)
+c6: vshufps Vps,Hps,Wps,Ib | vshufpd Vpd,Hpd,Wpd,Ib (66)
+c7: Grp9 (1A)
+c8: BSWAP RAX/EAX/R8/R8D
+c9: BSWAP RCX/ECX/R9/R9D
+ca: BSWAP RDX/EDX/R10/R10D
+cb: BSWAP RBX/EBX/R11/R11D
+cc: BSWAP RSP/ESP/R12/R12D
+cd: BSWAP RBP/EBP/R13/R13D
+ce: BSWAP RSI/ESI/R14/R14D
+cf: BSWAP RDI/EDI/R15/R15D
+# 0x0f 0xd0-0xdf
+d0: vaddsubpd Vpd,Hpd,Wpd (66) | vaddsubps Vps,Hps,Wps (F2)
+d1: psrlw Pq,Qq | vpsrlw Vx,Hx,Wx (66),(v1)
+d2: psrld Pq,Qq | vpsrld Vx,Hx,Wx (66),(v1)
+d3: psrlq Pq,Qq | vpsrlq Vx,Hx,Wx (66),(v1)
+d4: paddq Pq,Qq | vpaddq Vx,Hx,Wx (66),(v1)
+d5: pmullw Pq,Qq | vpmullw Vx,Hx,Wx (66),(v1)
+d6: vmovq Wq,Vq (66),(v1) | movq2dq Vdq,Nq (F3) | movdq2q Pq,Uq (F2)
+d7: pmovmskb Gd,Nq | vpmovmskb Gd,Ux (66),(v1)
+d8: psubusb Pq,Qq | vpsubusb Vx,Hx,Wx (66),(v1)
+d9: psubusw Pq,Qq | vpsubusw Vx,Hx,Wx (66),(v1)
+da: pminub Pq,Qq | vpminub Vx,Hx,Wx (66),(v1)
+db: pand Pq,Qq | vpand Vx,Hx,Wx (66),(v1)
+dc: paddusb Pq,Qq | vpaddusb Vx,Hx,Wx (66),(v1)
+dd: paddusw Pq,Qq | vpaddusw Vx,Hx,Wx (66),(v1)
+de: pmaxub Pq,Qq | vpmaxub Vx,Hx,Wx (66),(v1)
+df: pandn Pq,Qq | vpandn Vx,Hx,Wx (66),(v1)
+# 0x0f 0xe0-0xef
+e0: pavgb Pq,Qq | vpavgb Vx,Hx,Wx (66),(v1)
+e1: psraw Pq,Qq | vpsraw Vx,Hx,Wx (66),(v1)
+e2: psrad Pq,Qq | vpsrad Vx,Hx,Wx (66),(v1)
+e3: pavgw Pq,Qq | vpavgw Vx,Hx,Wx (66),(v1)
+e4: pmulhuw Pq,Qq | vpmulhuw Vx,Hx,Wx (66),(v1)
+e5: pmulhw Pq,Qq | vpmulhw Vx,Hx,Wx (66),(v1)
+e6: vcvttpd2dq Vx,Wpd (66) | vcvtdq2pd Vx,Wdq (F3) | vcvtpd2dq Vx,Wpd (F2)
+e7: movntq Mq,Pq | vmovntdq Mx,Vx (66)
+e8: psubsb Pq,Qq | vpsubsb Vx,Hx,Wx (66),(v1)
+e9: psubsw Pq,Qq | vpsubsw Vx,Hx,Wx (66),(v1)
+ea: pminsw Pq,Qq | vpminsw Vx,Hx,Wx (66),(v1)
+eb: por Pq,Qq | vpor Vx,Hx,Wx (66),(v1)
+ec: paddsb Pq,Qq | vpaddsb Vx,Hx,Wx (66),(v1)
+ed: paddsw Pq,Qq | vpaddsw Vx,Hx,Wx (66),(v1)
+ee: pmaxsw Pq,Qq | vpmaxsw Vx,Hx,Wx (66),(v1)
+ef: pxor Pq,Qq | vpxor Vx,Hx,Wx (66),(v1)
+# 0x0f 0xf0-0xff
+f0: vlddqu Vx,Mx (F2)
+f1: psllw Pq,Qq | vpsllw Vx,Hx,Wx (66),(v1)
+f2: pslld Pq,Qq | vpslld Vx,Hx,Wx (66),(v1)
+f3: psllq Pq,Qq | vpsllq Vx,Hx,Wx (66),(v1)
+f4: pmuludq Pq,Qq | vpmuludq Vx,Hx,Wx (66),(v1)
+f5: pmaddwd Pq,Qq | vpmaddwd Vx,Hx,Wx (66),(v1)
+f6: psadbw Pq,Qq | vpsadbw Vx,Hx,Wx (66),(v1)
+f7: maskmovq Pq,Nq | vmaskmovdqu Vx,Ux (66),(v1)
+f8: psubb Pq,Qq | vpsubb Vx,Hx,Wx (66),(v1)
+f9: psubw Pq,Qq | vpsubw Vx,Hx,Wx (66),(v1)
+fa: psubd Pq,Qq | vpsubd Vx,Hx,Wx (66),(v1)
+fb: psubq Pq,Qq | vpsubq Vx,Hx,Wx (66),(v1)
+fc: paddb Pq,Qq | vpaddb Vx,Hx,Wx (66),(v1)
+fd: paddw Pq,Qq | vpaddw Vx,Hx,Wx (66),(v1)
+fe: paddd Pq,Qq | vpaddd Vx,Hx,Wx (66),(v1)
+ff:
+EndTable
+
+Table: 3-byte opcode 1 (0x0f 0x38)
+Referrer: 3-byte escape 1
+AVXcode: 2
+# 0x0f 0x38 0x00-0x0f
+00: pshufb Pq,Qq | vpshufb Vx,Hx,Wx (66),(v1)
+01: phaddw Pq,Qq | vphaddw Vx,Hx,Wx (66),(v1)
+02: phaddd Pq,Qq | vphaddd Vx,Hx,Wx (66),(v1)
+03: phaddsw Pq,Qq | vphaddsw Vx,Hx,Wx (66),(v1)
+04: pmaddubsw Pq,Qq | vpmaddubsw Vx,Hx,Wx (66),(v1)
+05: phsubw Pq,Qq | vphsubw Vx,Hx,Wx (66),(v1)
+06: phsubd Pq,Qq | vphsubd Vx,Hx,Wx (66),(v1)
+07: phsubsw Pq,Qq | vphsubsw Vx,Hx,Wx (66),(v1)
+08: psignb Pq,Qq | vpsignb Vx,Hx,Wx (66),(v1)
+09: psignw Pq,Qq | vpsignw Vx,Hx,Wx (66),(v1)
+0a: psignd Pq,Qq | vpsignd Vx,Hx,Wx (66),(v1)
+0b: pmulhrsw Pq,Qq | vpmulhrsw Vx,Hx,Wx (66),(v1)
+0c: vpermilps Vx,Hx,Wx (66),(v)
+0d: vpermilpd Vx,Hx,Wx (66),(v)
+0e: vtestps Vx,Wx (66),(v)
+0f: vtestpd Vx,Wx (66),(v)
+# 0x0f 0x38 0x10-0x1f
+10: pblendvb Vdq,Wdq (66)
+11:
+12:
+13: vcvtph2ps Vx,Wx,Ib (66),(v)
+14: blendvps Vdq,Wdq (66)
+15: blendvpd Vdq,Wdq (66)
+16: vpermps Vqq,Hqq,Wqq (66),(v)
+17: vptest Vx,Wx (66)
+18: vbroadcastss Vx,Wd (66),(v)
+19: vbroadcastsd Vqq,Wq (66),(v)
+1a: vbroadcastf128 Vqq,Mdq (66),(v)
+1b:
+1c: pabsb Pq,Qq | vpabsb Vx,Wx (66),(v1)
+1d: pabsw Pq,Qq | vpabsw Vx,Wx (66),(v1)
+1e: pabsd Pq,Qq | vpabsd Vx,Wx (66),(v1)
+1f:
+# 0x0f 0x38 0x20-0x2f
+20: vpmovsxbw Vx,Ux/Mq (66),(v1)
+21: vpmovsxbd Vx,Ux/Md (66),(v1)
+22: vpmovsxbq Vx,Ux/Mw (66),(v1)
+23: vpmovsxwd Vx,Ux/Mq (66),(v1)
+24: vpmovsxwq Vx,Ux/Md (66),(v1)
+25: vpmovsxdq Vx,Ux/Mq (66),(v1)
+26:
+27:
+28: vpmuldq Vx,Hx,Wx (66),(v1)
+29: vpcmpeqq Vx,Hx,Wx (66),(v1)
+2a: vmovntdqa Vx,Mx (66),(v1)
+2b: vpackusdw Vx,Hx,Wx (66),(v1)
+2c: vmaskmovps Vx,Hx,Mx (66),(v)
+2d: vmaskmovpd Vx,Hx,Mx (66),(v)
+2e: vmaskmovps Mx,Hx,Vx (66),(v)
+2f: vmaskmovpd Mx,Hx,Vx (66),(v)
+# 0x0f 0x38 0x30-0x3f
+30: vpmovzxbw Vx,Ux/Mq (66),(v1)
+31: vpmovzxbd Vx,Ux/Md (66),(v1)
+32: vpmovzxbq Vx,Ux/Mw (66),(v1)
+33: vpmovzxwd Vx,Ux/Mq (66),(v1)
+34: vpmovzxwq Vx,Ux/Md (66),(v1)
+35: vpmovzxdq Vx,Ux/Mq (66),(v1)
+36: vpermd Vqq,Hqq,Wqq (66),(v)
+37: vpcmpgtq Vx,Hx,Wx (66),(v1)
+38: vpminsb Vx,Hx,Wx (66),(v1)
+39: vpminsd Vx,Hx,Wx (66),(v1)
+3a: vpminuw Vx,Hx,Wx (66),(v1)
+3b: vpminud Vx,Hx,Wx (66),(v1)
+3c: vpmaxsb Vx,Hx,Wx (66),(v1)
+3d: vpmaxsd Vx,Hx,Wx (66),(v1)
+3e: vpmaxuw Vx,Hx,Wx (66),(v1)
+3f: vpmaxud Vx,Hx,Wx (66),(v1)
+# 0x0f 0x38 0x40-0x8f
+40: vpmulld Vx,Hx,Wx (66),(v1)
+41: vphminposuw Vdq,Wdq (66),(v1)
+42:
+43:
+44:
+45: vpsrlvd/q Vx,Hx,Wx (66),(v)
+46: vpsravd Vx,Hx,Wx (66),(v)
+47: vpsllvd/q Vx,Hx,Wx (66),(v)
+# Skip 0x48-0x57
+58: vpbroadcastd Vx,Wx (66),(v)
+59: vpbroadcastq Vx,Wx (66),(v)
+5a: vbroadcasti128 Vqq,Mdq (66),(v)
+# Skip 0x5b-0x77
+78: vpbroadcastb Vx,Wx (66),(v)
+79: vpbroadcastw Vx,Wx (66),(v)
+# Skip 0x7a-0x7f
+80: INVEPT Gy,Mdq (66)
+81: INVPID Gy,Mdq (66)
+82: INVPCID Gy,Mdq (66)
+8c: vpmaskmovd/q Vx,Hx,Mx (66),(v)
+8e: vpmaskmovd/q Mx,Vx,Hx (66),(v)
+# 0x0f 0x38 0x90-0xbf (FMA)
+90: vgatherdd/q Vx,Hx,Wx (66),(v)
+91: vgatherqd/q Vx,Hx,Wx (66),(v)
+92: vgatherdps/d Vx,Hx,Wx (66),(v)
+93: vgatherqps/d Vx,Hx,Wx (66),(v)
+94:
+95:
+96: vfmaddsub132ps/d Vx,Hx,Wx (66),(v)
+97: vfmsubadd132ps/d Vx,Hx,Wx (66),(v)
+98: vfmadd132ps/d Vx,Hx,Wx (66),(v)
+99: vfmadd132ss/d Vx,Hx,Wx (66),(v),(v1)
+9a: vfmsub132ps/d Vx,Hx,Wx (66),(v)
+9b: vfmsub132ss/d Vx,Hx,Wx (66),(v),(v1)
+9c: vfnmadd132ps/d Vx,Hx,Wx (66),(v)
+9d: vfnmadd132ss/d Vx,Hx,Wx (66),(v),(v1)
+9e: vfnmsub132ps/d Vx,Hx,Wx (66),(v)
+9f: vfnmsub132ss/d Vx,Hx,Wx (66),(v),(v1)
+a6: vfmaddsub213ps/d Vx,Hx,Wx (66),(v)
+a7: vfmsubadd213ps/d Vx,Hx,Wx (66),(v)
+a8: vfmadd213ps/d Vx,Hx,Wx (66),(v)
+a9: vfmadd213ss/d Vx,Hx,Wx (66),(v),(v1)
+aa: vfmsub213ps/d Vx,Hx,Wx (66),(v)
+ab: vfmsub213ss/d Vx,Hx,Wx (66),(v),(v1)
+ac: vfnmadd213ps/d Vx,Hx,Wx (66),(v)
+ad: vfnmadd213ss/d Vx,Hx,Wx (66),(v),(v1)
+ae: vfnmsub213ps/d Vx,Hx,Wx (66),(v)
+af: vfnmsub213ss/d Vx,Hx,Wx (66),(v),(v1)
+b6: vfmaddsub231ps/d Vx,Hx,Wx (66),(v)
+b7: vfmsubadd231ps/d Vx,Hx,Wx (66),(v)
+b8: vfmadd231ps/d Vx,Hx,Wx (66),(v)
+b9: vfmadd231ss/d Vx,Hx,Wx (66),(v),(v1)
+ba: vfmsub231ps/d Vx,Hx,Wx (66),(v)
+bb: vfmsub231ss/d Vx,Hx,Wx (66),(v),(v1)
+bc: vfnmadd231ps/d Vx,Hx,Wx (66),(v)
+bd: vfnmadd231ss/d Vx,Hx,Wx (66),(v),(v1)
+be: vfnmsub231ps/d Vx,Hx,Wx (66),(v)
+bf: vfnmsub231ss/d Vx,Hx,Wx (66),(v),(v1)
+# 0x0f 0x38 0xc0-0xff
+db: VAESIMC Vdq,Wdq (66),(v1)
+dc: VAESENC Vdq,Hdq,Wdq (66),(v1)
+dd: VAESENCLAST Vdq,Hdq,Wdq (66),(v1)
+de: VAESDEC Vdq,Hdq,Wdq (66),(v1)
+df: VAESDECLAST Vdq,Hdq,Wdq (66),(v1)
+f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2) | CRC32 Gd,Eb (66&F2)
+f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2) | CRC32 Gd,Ew (66&F2)
+f2: ANDN Gy,By,Ey (v)
+f3: Grp17 (1A)
+f5: BZHI Gy,Ey,By (v) | PEXT Gy,By,Ey (F3),(v) | PDEP Gy,By,Ey (F2),(v)
+f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v)
+f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v)
+EndTable
+
+Table: 3-byte opcode 2 (0x0f 0x3a)
+Referrer: 3-byte escape 2
+AVXcode: 3
+# 0x0f 0x3a 0x00-0xff
+00: vpermq Vqq,Wqq,Ib (66),(v)
+01: vpermpd Vqq,Wqq,Ib (66),(v)
+02: vpblendd Vx,Hx,Wx,Ib (66),(v)
+03:
+04: vpermilps Vx,Wx,Ib (66),(v)
+05: vpermilpd Vx,Wx,Ib (66),(v)
+06: vperm2f128 Vqq,Hqq,Wqq,Ib (66),(v)
+07:
+08: vroundps Vx,Wx,Ib (66)
+09: vroundpd Vx,Wx,Ib (66)
+0a: vroundss Vss,Wss,Ib (66),(v1)
+0b: vroundsd Vsd,Wsd,Ib (66),(v1)
+0c: vblendps Vx,Hx,Wx,Ib (66)
+0d: vblendpd Vx,Hx,Wx,Ib (66)
+0e: vpblendw Vx,Hx,Wx,Ib (66),(v1)
+0f: palignr Pq,Qq,Ib | vpalignr Vx,Hx,Wx,Ib (66),(v1)
+14: vpextrb Rd/Mb,Vdq,Ib (66),(v1)
+15: vpextrw Rd/Mw,Vdq,Ib (66),(v1)
+16: vpextrd/q Ey,Vdq,Ib (66),(v1)
+17: vextractps Ed,Vdq,Ib (66),(v1)
+18: vinsertf128 Vqq,Hqq,Wqq,Ib (66),(v)
+19: vextractf128 Wdq,Vqq,Ib (66),(v)
+1d: vcvtps2ph Wx,Vx,Ib (66),(v)
+20: vpinsrb Vdq,Hdq,Ry/Mb,Ib (66),(v1)
+21: vinsertps Vdq,Hdq,Udq/Md,Ib (66),(v1)
+22: vpinsrd/q Vdq,Hdq,Ey,Ib (66),(v1)
+38: vinserti128 Vqq,Hqq,Wqq,Ib (66),(v)
+39: vextracti128 Wdq,Vqq,Ib (66),(v)
+40: vdpps Vx,Hx,Wx,Ib (66)
+41: vdppd Vdq,Hdq,Wdq,Ib (66),(v1)
+42: vmpsadbw Vx,Hx,Wx,Ib (66),(v1)
+44: vpclmulqdq Vdq,Hdq,Wdq,Ib (66),(v1)
+46: vperm2i128 Vqq,Hqq,Wqq,Ib (66),(v)
+4a: vblendvps Vx,Hx,Wx,Lx (66),(v)
+4b: vblendvpd Vx,Hx,Wx,Lx (66),(v)
+4c: vpblendvb Vx,Hx,Wx,Lx (66),(v1)
+60: vpcmpestrm Vdq,Wdq,Ib (66),(v1)
+61: vpcmpestri Vdq,Wdq,Ib (66),(v1)
+62: vpcmpistrm Vdq,Wdq,Ib (66),(v1)
+63: vpcmpistri Vdq,Wdq,Ib (66),(v1)
+df: VAESKEYGEN Vdq,Wdq,Ib (66),(v1)
+f0: RORX Gy,Ey,Ib (F2),(v)
+EndTable
+
+GrpTable: Grp1
+0: ADD
+1: OR
+2: ADC
+3: SBB
+4: AND
+5: SUB
+6: XOR
+7: CMP
+EndTable
+
+GrpTable: Grp1A
+0: POP
+EndTable
+
+GrpTable: Grp2
+0: ROL
+1: ROR
+2: RCL
+3: RCR
+4: SHL/SAL
+5: SHR
+6:
+7: SAR
+EndTable
+
+GrpTable: Grp3_1
+0: TEST Eb,Ib
+1:
+2: NOT Eb
+3: NEG Eb
+4: MUL AL,Eb
+5: IMUL AL,Eb
+6: DIV AL,Eb
+7: IDIV AL,Eb
+EndTable
+
+GrpTable: Grp3_2
+0: TEST Ev,Iz
+1:
+2: NOT Ev
+3: NEG Ev
+4: MUL rAX,Ev
+5: IMUL rAX,Ev
+6: DIV rAX,Ev
+7: IDIV rAX,Ev
+EndTable
+
+GrpTable: Grp4
+0: INC Eb
+1: DEC Eb
+EndTable
+
+GrpTable: Grp5
+0: INC Ev
+1: DEC Ev
+# Note: "forced64" is Intel CPU behavior (see comment about CALL insn).
+2: CALLN Ev (f64)
+3: CALLF Ep
+4: JMPN Ev (f64)
+5: JMPF Mp
+6: PUSH Ev (d64)
+7:
+EndTable
+
+GrpTable: Grp6
+0: SLDT Rv/Mw
+1: STR Rv/Mw
+2: LLDT Ew
+3: LTR Ew
+4: VERR Ew
+5: VERW Ew
+EndTable
+
+GrpTable: Grp7
+0: SGDT Ms | VMCALL (001),(11B) | VMLAUNCH (010),(11B) | VMRESUME (011),(11B) | VMXOFF (100),(11B)
+1: SIDT Ms | MONITOR (000),(11B) | MWAIT (001),(11B) | CLAC (010),(11B) | STAC (011),(11B)
+2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B)
+3: LIDT Ms
+4: SMSW Mw/Rv
+5:
+6: LMSW Ew
+7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B)
+EndTable
+
+GrpTable: Grp8
+4: BT
+5: BTS
+6: BTR
+7: BTC
+EndTable
+
+GrpTable: Grp9
+1: CMPXCHG8B/16B Mq/Mdq
+6: VMPTRLD Mq | VMCLEAR Mq (66) | VMXON Mq (F3) | RDRAND Rv (11B)
+7: VMPTRST Mq | VMPTRST Mq (F3) | RDSEED Rv (11B)
+EndTable
+
+GrpTable: Grp10
+EndTable
+
+# Grp11A and Grp11B are expressed as Grp11 in Intel SDM
+GrpTable: Grp11A
+0: MOV Eb,Ib
+7: XABORT Ib (000),(11B)
+EndTable
+
+GrpTable: Grp11B
+0: MOV Eb,Iz
+7: XBEGIN Jz (000),(11B)
+EndTable
+
+GrpTable: Grp12
+2: psrlw Nq,Ib (11B) | vpsrlw Hx,Ux,Ib (66),(11B),(v1)
+4: psraw Nq,Ib (11B) | vpsraw Hx,Ux,Ib (66),(11B),(v1)
+6: psllw Nq,Ib (11B) | vpsllw Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp13
+2: psrld Nq,Ib (11B) | vpsrld Hx,Ux,Ib (66),(11B),(v1)
+4: psrad Nq,Ib (11B) | vpsrad Hx,Ux,Ib (66),(11B),(v1)
+6: pslld Nq,Ib (11B) | vpslld Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp14
+2: psrlq Nq,Ib (11B) | vpsrlq Hx,Ux,Ib (66),(11B),(v1)
+3: vpsrldq Hx,Ux,Ib (66),(11B),(v1)
+6: psllq Nq,Ib (11B) | vpsllq Hx,Ux,Ib (66),(11B),(v1)
+7: vpslldq Hx,Ux,Ib (66),(11B),(v1)
+EndTable
+
+GrpTable: Grp15
+0: fxsave | RDFSBASE Ry (F3),(11B)
+1: fxstor | RDGSBASE Ry (F3),(11B)
+2: vldmxcsr Md (v1) | WRFSBASE Ry (F3),(11B)
+3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B)
+4: XSAVE
+5: XRSTOR | lfence (11B)
+6: XSAVEOPT | mfence (11B)
+7: clflush | sfence (11B)
+EndTable
+
+GrpTable: Grp16
+0: prefetch NTA
+1: prefetch T0
+2: prefetch T1
+3: prefetch T2
+EndTable
+
+GrpTable: Grp17
+1: BLSR By,Ey (v)
+2: BLSMSK By,Ey (v)
+3: BLSI By,Ey (v)
+EndTable
+
+# AMD's Prefetch Group
+GrpTable: GrpP
+0: PREFETCH
+1: PREFETCHW
+EndTable
+
+GrpTable: GrpPDLK
+0: MONTMUL
+1: XSHA1
+2: XSHA2
+EndTable
+
+GrpTable: GrpRNG
+0: xstore-rng
+1: xcrypt-ecb
+2: xcrypt-cbc
+4: xcrypt-cfb
+5: xcrypt-ofb
+EndTable
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
new file mode 100644
index 000000000000..bb41c20e6005
--- /dev/null
+++ b/tools/perf/util/intel-pt.c
@@ -0,0 +1,1956 @@
+/*
+ * intel_pt.c: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "../perf.h"
+#include "session.h"
+#include "machine.h"
+#include "tool.h"
+#include "event.h"
+#include "evlist.h"
+#include "evsel.h"
+#include "map.h"
+#include "color.h"
+#include "util.h"
+#include "thread.h"
+#include "thread-stack.h"
+#include "symbol.h"
+#include "callchain.h"
+#include "dso.h"
+#include "debug.h"
+#include "auxtrace.h"
+#include "tsc.h"
+#include "intel-pt.h"
+
+#include "intel-pt-decoder/intel-pt-log.h"
+#include "intel-pt-decoder/intel-pt-decoder.h"
+#include "intel-pt-decoder/intel-pt-insn-decoder.h"
+#include "intel-pt-decoder/intel-pt-pkt-decoder.h"
+
+#define MAX_TIMESTAMP (~0ULL)
+
+struct intel_pt {
+ struct auxtrace auxtrace;
+ struct auxtrace_queues queues;
+ struct auxtrace_heap heap;
+ u32 auxtrace_type;
+ struct perf_session *session;
+ struct machine *machine;
+ struct perf_evsel *switch_evsel;
+ struct thread *unknown_thread;
+ bool timeless_decoding;
+ bool sampling_mode;
+ bool snapshot_mode;
+ bool per_cpu_mmaps;
+ bool have_tsc;
+ bool data_queued;
+ bool est_tsc;
+ bool sync_switch;
+ int have_sched_switch;
+ u32 pmu_type;
+ u64 kernel_start;
+ u64 switch_ip;
+ u64 ptss_ip;
+
+ struct perf_tsc_conversion tc;
+ bool cap_user_time_zero;
+
+ struct itrace_synth_opts synth_opts;
+
+ bool sample_instructions;
+ u64 instructions_sample_type;
+ u64 instructions_sample_period;
+ u64 instructions_id;
+
+ bool sample_branches;
+ u32 branches_filter;
+ u64 branches_sample_type;
+ u64 branches_id;
+
+ bool sample_transactions;
+ u64 transactions_sample_type;
+ u64 transactions_id;
+
+ bool synth_needs_swap;
+
+ u64 tsc_bit;
+ u64 mtc_bit;
+ u64 mtc_freq_bits;
+ u32 tsc_ctc_ratio_n;
+ u32 tsc_ctc_ratio_d;
+ u64 cyc_bit;
+ u64 noretcomp_bit;
+ unsigned max_non_turbo_ratio;
+};
+
+enum switch_state {
+ INTEL_PT_SS_NOT_TRACING,
+ INTEL_PT_SS_UNKNOWN,
+ INTEL_PT_SS_TRACING,
+ INTEL_PT_SS_EXPECTING_SWITCH_EVENT,
+ INTEL_PT_SS_EXPECTING_SWITCH_IP,
+};
+
+struct intel_pt_queue {
+ struct intel_pt *pt;
+ unsigned int queue_nr;
+ struct auxtrace_buffer *buffer;
+ void *decoder;
+ const struct intel_pt_state *state;
+ struct ip_callchain *chain;
+ union perf_event *event_buf;
+ bool on_heap;
+ bool stop;
+ bool step_through_buffers;
+ bool use_buffer_pid_tid;
+ pid_t pid, tid;
+ int cpu;
+ int switch_state;
+ pid_t next_tid;
+ struct thread *thread;
+ bool exclude_kernel;
+ bool have_sample;
+ u64 time;
+ u64 timestamp;
+ u32 flags;
+ u16 insn_len;
+ u64 last_insn_cnt;
+};
+
+static void intel_pt_dump(struct intel_pt *pt __maybe_unused,
+ unsigned char *buf, size_t len)
+{
+ struct intel_pt_pkt packet;
+ size_t pos = 0;
+ int ret, pkt_len, i;
+ char desc[INTEL_PT_PKT_DESC_MAX];
+ const char *color = PERF_COLOR_BLUE;
+
+ color_fprintf(stdout, color,
+ ". ... Intel Processor Trace data: size %zu bytes\n",
+ len);
+
+ while (len) {
+ ret = intel_pt_get_packet(buf, len, &packet);
+ if (ret > 0)
+ pkt_len = ret;
+ else
+ pkt_len = 1;
+ printf(".");
+ color_fprintf(stdout, color, " %08x: ", pos);
+ for (i = 0; i < pkt_len; i++)
+ color_fprintf(stdout, color, " %02x", buf[i]);
+ for (; i < 16; i++)
+ color_fprintf(stdout, color, " ");
+ if (ret > 0) {
+ ret = intel_pt_pkt_desc(&packet, desc,
+ INTEL_PT_PKT_DESC_MAX);
+ if (ret > 0)
+ color_fprintf(stdout, color, " %s\n", desc);
+ } else {
+ color_fprintf(stdout, color, " Bad packet!\n");
+ }
+ pos += pkt_len;
+ buf += pkt_len;
+ len -= pkt_len;
+ }
+}
+
+static void intel_pt_dump_event(struct intel_pt *pt, unsigned char *buf,
+ size_t len)
+{
+ printf(".\n");
+ intel_pt_dump(pt, buf, len);
+}
+
+static int intel_pt_do_fix_overlap(struct intel_pt *pt, struct auxtrace_buffer *a,
+ struct auxtrace_buffer *b)
+{
+ void *start;
+
+ start = intel_pt_find_overlap(a->data, a->size, b->data, b->size,
+ pt->have_tsc);
+ if (!start)
+ return -EINVAL;
+ b->use_size = b->data + b->size - start;
+ b->use_data = start;
+ return 0;
+}
+
+static void intel_pt_use_buffer_pid_tid(struct intel_pt_queue *ptq,
+ struct auxtrace_queue *queue,
+ struct auxtrace_buffer *buffer)
+{
+ if (queue->cpu == -1 && buffer->cpu != -1)
+ ptq->cpu = buffer->cpu;
+
+ ptq->pid = buffer->pid;
+ ptq->tid = buffer->tid;
+
+ intel_pt_log("queue %u cpu %d pid %d tid %d\n",
+ ptq->queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+
+ thread__zput(ptq->thread);
+
+ if (ptq->tid != -1) {
+ if (ptq->pid != -1)
+ ptq->thread = machine__findnew_thread(ptq->pt->machine,
+ ptq->pid,
+ ptq->tid);
+ else
+ ptq->thread = machine__find_thread(ptq->pt->machine, -1,
+ ptq->tid);
+ }
+}
+
+/* This function assumes data is processed sequentially only */
+static int intel_pt_get_trace(struct intel_pt_buffer *b, void *data)
+{
+ struct intel_pt_queue *ptq = data;
+ struct auxtrace_buffer *buffer = ptq->buffer, *old_buffer = buffer;
+ struct auxtrace_queue *queue;
+
+ if (ptq->stop) {
+ b->len = 0;
+ return 0;
+ }
+
+ queue = &ptq->pt->queues.queue_array[ptq->queue_nr];
+
+ buffer = auxtrace_buffer__next(queue, buffer);
+ if (!buffer) {
+ if (old_buffer)
+ auxtrace_buffer__drop_data(old_buffer);
+ b->len = 0;
+ return 0;
+ }
+
+ ptq->buffer = buffer;
+
+ if (!buffer->data) {
+ int fd = perf_data_file__fd(ptq->pt->session->file);
+
+ buffer->data = auxtrace_buffer__get_data(buffer, fd);
+ if (!buffer->data)
+ return -ENOMEM;
+ }
+
+ if (ptq->pt->snapshot_mode && !buffer->consecutive && old_buffer &&
+ intel_pt_do_fix_overlap(ptq->pt, old_buffer, buffer))
+ return -ENOMEM;
+
+ if (old_buffer)
+ auxtrace_buffer__drop_data(old_buffer);
+
+ if (buffer->use_data) {
+ b->len = buffer->use_size;
+ b->buf = buffer->use_data;
+ } else {
+ b->len = buffer->size;
+ b->buf = buffer->data;
+ }
+ b->ref_timestamp = buffer->reference;
+
+ if (!old_buffer || ptq->pt->sampling_mode || (ptq->pt->snapshot_mode &&
+ !buffer->consecutive)) {
+ b->consecutive = false;
+ b->trace_nr = buffer->buffer_nr + 1;
+ } else {
+ b->consecutive = true;
+ }
+
+ if (ptq->use_buffer_pid_tid && (ptq->pid != buffer->pid ||
+ ptq->tid != buffer->tid))
+ intel_pt_use_buffer_pid_tid(ptq, queue, buffer);
+
+ if (ptq->step_through_buffers)
+ ptq->stop = true;
+
+ if (!b->len)
+ return intel_pt_get_trace(b, data);
+
+ return 0;
+}
+
+struct intel_pt_cache_entry {
+ struct auxtrace_cache_entry entry;
+ u64 insn_cnt;
+ u64 byte_cnt;
+ enum intel_pt_insn_op op;
+ enum intel_pt_insn_branch branch;
+ int length;
+ int32_t rel;
+};
+
+static int intel_pt_config_div(const char *var, const char *value, void *data)
+{
+ int *d = data;
+ long val;
+
+ if (!strcmp(var, "intel-pt.cache-divisor")) {
+ val = strtol(value, NULL, 0);
+ if (val > 0 && val <= INT_MAX)
+ *d = val;
+ }
+
+ return 0;
+}
+
+static int intel_pt_cache_divisor(void)
+{
+ static int d;
+
+ if (d)
+ return d;
+
+ perf_config(intel_pt_config_div, &d);
+
+ if (!d)
+ d = 64;
+
+ return d;
+}
+
+static unsigned int intel_pt_cache_size(struct dso *dso,
+ struct machine *machine)
+{
+ off_t size;
+
+ size = dso__data_size(dso, machine);
+ size /= intel_pt_cache_divisor();
+ if (size < 1000)
+ return 10;
+ if (size > (1 << 21))
+ return 21;
+ return 32 - __builtin_clz(size);
+}
+
+static struct auxtrace_cache *intel_pt_cache(struct dso *dso,
+ struct machine *machine)
+{
+ struct auxtrace_cache *c;
+ unsigned int bits;
+
+ if (dso->auxtrace_cache)
+ return dso->auxtrace_cache;
+
+ bits = intel_pt_cache_size(dso, machine);
+
+ /* Ignoring cache creation failure */
+ c = auxtrace_cache__new(bits, sizeof(struct intel_pt_cache_entry), 200);
+
+ dso->auxtrace_cache = c;
+
+ return c;
+}
+
+static int intel_pt_cache_add(struct dso *dso, struct machine *machine,
+ u64 offset, u64 insn_cnt, u64 byte_cnt,
+ struct intel_pt_insn *intel_pt_insn)
+{
+ struct auxtrace_cache *c = intel_pt_cache(dso, machine);
+ struct intel_pt_cache_entry *e;
+ int err;
+
+ if (!c)
+ return -ENOMEM;
+
+ e = auxtrace_cache__alloc_entry(c);
+ if (!e)
+ return -ENOMEM;
+
+ e->insn_cnt = insn_cnt;
+ e->byte_cnt = byte_cnt;
+ e->op = intel_pt_insn->op;
+ e->branch = intel_pt_insn->branch;
+ e->length = intel_pt_insn->length;
+ e->rel = intel_pt_insn->rel;
+
+ err = auxtrace_cache__add(c, offset, &e->entry);
+ if (err)
+ auxtrace_cache__free_entry(c, e);
+
+ return err;
+}
+
+static struct intel_pt_cache_entry *
+intel_pt_cache_lookup(struct dso *dso, struct machine *machine, u64 offset)
+{
+ struct auxtrace_cache *c = intel_pt_cache(dso, machine);
+
+ if (!c)
+ return NULL;
+
+ return auxtrace_cache__lookup(dso->auxtrace_cache, offset);
+}
+
+static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
+ uint64_t *insn_cnt_ptr, uint64_t *ip,
+ uint64_t to_ip, uint64_t max_insn_cnt,
+ void *data)
+{
+ struct intel_pt_queue *ptq = data;
+ struct machine *machine = ptq->pt->machine;
+ struct thread *thread;
+ struct addr_location al;
+ unsigned char buf[1024];
+ size_t bufsz;
+ ssize_t len;
+ int x86_64;
+ u8 cpumode;
+ u64 offset, start_offset, start_ip;
+ u64 insn_cnt = 0;
+ bool one_map = true;
+
+ if (to_ip && *ip == to_ip)
+ goto out_no_cache;
+
+ bufsz = intel_pt_insn_max_size();
+
+ if (*ip >= ptq->pt->kernel_start)
+ cpumode = PERF_RECORD_MISC_KERNEL;
+ else
+ cpumode = PERF_RECORD_MISC_USER;
+
+ thread = ptq->thread;
+ if (!thread) {
+ if (cpumode != PERF_RECORD_MISC_KERNEL)
+ return -EINVAL;
+ thread = ptq->pt->unknown_thread;
+ }
+
+ while (1) {
+ thread__find_addr_map(thread, cpumode, MAP__FUNCTION, *ip, &al);
+ if (!al.map || !al.map->dso)
+ return -EINVAL;
+
+ if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR &&
+ dso__data_status_seen(al.map->dso,
+ DSO_DATA_STATUS_SEEN_ITRACE))
+ return -ENOENT;
+
+ offset = al.map->map_ip(al.map, *ip);
+
+ if (!to_ip && one_map) {
+ struct intel_pt_cache_entry *e;
+
+ e = intel_pt_cache_lookup(al.map->dso, machine, offset);
+ if (e &&
+ (!max_insn_cnt || e->insn_cnt <= max_insn_cnt)) {
+ *insn_cnt_ptr = e->insn_cnt;
+ *ip += e->byte_cnt;
+ intel_pt_insn->op = e->op;
+ intel_pt_insn->branch = e->branch;
+ intel_pt_insn->length = e->length;
+ intel_pt_insn->rel = e->rel;
+ intel_pt_log_insn_no_data(intel_pt_insn, *ip);
+ return 0;
+ }
+ }
+
+ start_offset = offset;
+ start_ip = *ip;
+
+ /* Load maps to ensure dso->is_64_bit has been updated */
+ map__load(al.map, machine->symbol_filter);
+
+ x86_64 = al.map->dso->is_64_bit;
+
+ while (1) {
+ len = dso__data_read_offset(al.map->dso, machine,
+ offset, buf, bufsz);
+ if (len <= 0)
+ return -EINVAL;
+
+ if (intel_pt_get_insn(buf, len, x86_64, intel_pt_insn))
+ return -EINVAL;
+
+ intel_pt_log_insn(intel_pt_insn, *ip);
+
+ insn_cnt += 1;
+
+ if (intel_pt_insn->branch != INTEL_PT_BR_NO_BRANCH)
+ goto out;
+
+ if (max_insn_cnt && insn_cnt >= max_insn_cnt)
+ goto out_no_cache;
+
+ *ip += intel_pt_insn->length;
+
+ if (to_ip && *ip == to_ip)
+ goto out_no_cache;
+
+ if (*ip >= al.map->end)
+ break;
+
+ offset += intel_pt_insn->length;
+ }
+ one_map = false;
+ }
+out:
+ *insn_cnt_ptr = insn_cnt;
+
+ if (!one_map)
+ goto out_no_cache;
+
+ /*
+ * Didn't lookup in the 'to_ip' case, so do it now to prevent duplicate
+ * entries.
+ */
+ if (to_ip) {
+ struct intel_pt_cache_entry *e;
+
+ e = intel_pt_cache_lookup(al.map->dso, machine, start_offset);
+ if (e)
+ return 0;
+ }
+
+ /* Ignore cache errors */
+ intel_pt_cache_add(al.map->dso, machine, start_offset, insn_cnt,
+ *ip - start_ip, intel_pt_insn);
+
+ return 0;
+
+out_no_cache:
+ *insn_cnt_ptr = insn_cnt;
+ return 0;
+}
+
+static bool intel_pt_get_config(struct intel_pt *pt,
+ struct perf_event_attr *attr, u64 *config)
+{
+ if (attr->type == pt->pmu_type) {
+ if (config)
+ *config = attr->config;
+ return true;
+ }
+
+ return false;
+}
+
+static bool intel_pt_exclude_kernel(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
+ !evsel->attr.exclude_kernel)
+ return false;
+ }
+ return true;
+}
+
+static bool intel_pt_return_compression(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ u64 config;
+
+ if (!pt->noretcomp_bit)
+ return true;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config) &&
+ (config & pt->noretcomp_bit))
+ return false;
+ }
+ return true;
+}
+
+static unsigned int intel_pt_mtc_period(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ unsigned int shift;
+ u64 config;
+
+ if (!pt->mtc_freq_bits)
+ return 0;
+
+ for (shift = 0, config = pt->mtc_freq_bits; !(config & 1); shift++)
+ config >>= 1;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config))
+ return (config & pt->mtc_freq_bits) >> shift;
+ }
+ return 0;
+}
+
+static bool intel_pt_timeless_decoding(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ bool timeless_decoding = true;
+ u64 config;
+
+ if (!pt->tsc_bit || !pt->cap_user_time_zero)
+ return true;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (!(evsel->attr.sample_type & PERF_SAMPLE_TIME))
+ return true;
+ if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (config & pt->tsc_bit)
+ timeless_decoding = false;
+ else
+ return true;
+ }
+ }
+ return timeless_decoding;
+}
+
+static bool intel_pt_tracing_kernel(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, NULL) &&
+ !evsel->attr.exclude_kernel)
+ return true;
+ }
+ return false;
+}
+
+static bool intel_pt_have_tsc(struct intel_pt *pt)
+{
+ struct perf_evsel *evsel;
+ bool have_tsc = false;
+ u64 config;
+
+ if (!pt->tsc_bit)
+ return false;
+
+ evlist__for_each(pt->session->evlist, evsel) {
+ if (intel_pt_get_config(pt, &evsel->attr, &config)) {
+ if (config & pt->tsc_bit)
+ have_tsc = true;
+ else
+ return false;
+ }
+ }
+ return have_tsc;
+}
+
+static u64 intel_pt_ns_to_ticks(const struct intel_pt *pt, u64 ns)
+{
+ u64 quot, rem;
+
+ quot = ns / pt->tc.time_mult;
+ rem = ns % pt->tc.time_mult;
+ return (quot << pt->tc.time_shift) + (rem << pt->tc.time_shift) /
+ pt->tc.time_mult;
+}
+
+static struct intel_pt_queue *intel_pt_alloc_queue(struct intel_pt *pt,
+ unsigned int queue_nr)
+{
+ struct intel_pt_params params = { .get_trace = 0, };
+ struct intel_pt_queue *ptq;
+
+ ptq = zalloc(sizeof(struct intel_pt_queue));
+ if (!ptq)
+ return NULL;
+
+ if (pt->synth_opts.callchain) {
+ size_t sz = sizeof(struct ip_callchain);
+
+ sz += pt->synth_opts.callchain_sz * sizeof(u64);
+ ptq->chain = zalloc(sz);
+ if (!ptq->chain)
+ goto out_free;
+ }
+
+ ptq->event_buf = malloc(PERF_SAMPLE_MAX_SIZE);
+ if (!ptq->event_buf)
+ goto out_free;
+
+ ptq->pt = pt;
+ ptq->queue_nr = queue_nr;
+ ptq->exclude_kernel = intel_pt_exclude_kernel(pt);
+ ptq->pid = -1;
+ ptq->tid = -1;
+ ptq->cpu = -1;
+ ptq->next_tid = -1;
+
+ params.get_trace = intel_pt_get_trace;
+ params.walk_insn = intel_pt_walk_next_insn;
+ params.data = ptq;
+ params.return_compression = intel_pt_return_compression(pt);
+ params.max_non_turbo_ratio = pt->max_non_turbo_ratio;
+ params.mtc_period = intel_pt_mtc_period(pt);
+ params.tsc_ctc_ratio_n = pt->tsc_ctc_ratio_n;
+ params.tsc_ctc_ratio_d = pt->tsc_ctc_ratio_d;
+
+ if (pt->synth_opts.instructions) {
+ if (pt->synth_opts.period) {
+ switch (pt->synth_opts.period_type) {
+ case PERF_ITRACE_PERIOD_INSTRUCTIONS:
+ params.period_type =
+ INTEL_PT_PERIOD_INSTRUCTIONS;
+ params.period = pt->synth_opts.period;
+ break;
+ case PERF_ITRACE_PERIOD_TICKS:
+ params.period_type = INTEL_PT_PERIOD_TICKS;
+ params.period = pt->synth_opts.period;
+ break;
+ case PERF_ITRACE_PERIOD_NANOSECS:
+ params.period_type = INTEL_PT_PERIOD_TICKS;
+ params.period = intel_pt_ns_to_ticks(pt,
+ pt->synth_opts.period);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!params.period) {
+ params.period_type = INTEL_PT_PERIOD_INSTRUCTIONS;
+ params.period = 1000;
+ }
+ }
+
+ ptq->decoder = intel_pt_decoder_new(&params);
+ if (!ptq->decoder)
+ goto out_free;
+
+ return ptq;
+
+out_free:
+ zfree(&ptq->event_buf);
+ zfree(&ptq->chain);
+ free(ptq);
+ return NULL;
+}
+
+static void intel_pt_free_queue(void *priv)
+{
+ struct intel_pt_queue *ptq = priv;
+
+ if (!ptq)
+ return;
+ thread__zput(ptq->thread);
+ intel_pt_decoder_free(ptq->decoder);
+ zfree(&ptq->event_buf);
+ zfree(&ptq->chain);
+ free(ptq);
+}
+
+static void intel_pt_set_pid_tid_cpu(struct intel_pt *pt,
+ struct auxtrace_queue *queue)
+{
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (queue->tid == -1 || pt->have_sched_switch) {
+ ptq->tid = machine__get_current_tid(pt->machine, ptq->cpu);
+ thread__zput(ptq->thread);
+ }
+
+ if (!ptq->thread && ptq->tid != -1)
+ ptq->thread = machine__find_thread(pt->machine, -1, ptq->tid);
+
+ if (ptq->thread) {
+ ptq->pid = ptq->thread->pid_;
+ if (queue->cpu == -1)
+ ptq->cpu = ptq->thread->cpu;
+ }
+}
+
+static void intel_pt_sample_flags(struct intel_pt_queue *ptq)
+{
+ if (ptq->state->flags & INTEL_PT_ABORT_TX) {
+ ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT;
+ } else if (ptq->state->flags & INTEL_PT_ASYNC) {
+ if (ptq->state->to_ip)
+ ptq->flags = PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL |
+ PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT;
+ else
+ ptq->flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_END;
+ ptq->insn_len = 0;
+ } else {
+ if (ptq->state->from_ip)
+ ptq->flags = intel_pt_insn_type(ptq->state->insn_op);
+ else
+ ptq->flags = PERF_IP_FLAG_BRANCH |
+ PERF_IP_FLAG_TRACE_BEGIN;
+ if (ptq->state->flags & INTEL_PT_IN_TX)
+ ptq->flags |= PERF_IP_FLAG_IN_TX;
+ ptq->insn_len = ptq->state->insn_len;
+ }
+}
+
+static int intel_pt_setup_queue(struct intel_pt *pt,
+ struct auxtrace_queue *queue,
+ unsigned int queue_nr)
+{
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (list_empty(&queue->head))
+ return 0;
+
+ if (!ptq) {
+ ptq = intel_pt_alloc_queue(pt, queue_nr);
+ if (!ptq)
+ return -ENOMEM;
+ queue->priv = ptq;
+
+ if (queue->cpu != -1)
+ ptq->cpu = queue->cpu;
+ ptq->tid = queue->tid;
+
+ if (pt->sampling_mode) {
+ if (pt->timeless_decoding)
+ ptq->step_through_buffers = true;
+ if (pt->timeless_decoding || !pt->have_sched_switch)
+ ptq->use_buffer_pid_tid = true;
+ }
+ }
+
+ if (!ptq->on_heap &&
+ (!pt->sync_switch ||
+ ptq->switch_state != INTEL_PT_SS_EXPECTING_SWITCH_EVENT)) {
+ const struct intel_pt_state *state;
+ int ret;
+
+ if (pt->timeless_decoding)
+ return 0;
+
+ intel_pt_log("queue %u getting timestamp\n", queue_nr);
+ intel_pt_log("queue %u decoding cpu %d pid %d tid %d\n",
+ queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+ while (1) {
+ state = intel_pt_decode(ptq->decoder);
+ if (state->err) {
+ if (state->err == INTEL_PT_ERR_NODATA) {
+ intel_pt_log("queue %u has no timestamp\n",
+ queue_nr);
+ return 0;
+ }
+ continue;
+ }
+ if (state->timestamp)
+ break;
+ }
+
+ ptq->timestamp = state->timestamp;
+ intel_pt_log("queue %u timestamp 0x%" PRIx64 "\n",
+ queue_nr, ptq->timestamp);
+ ptq->state = state;
+ ptq->have_sample = true;
+ intel_pt_sample_flags(ptq);
+ ret = auxtrace_heap__add(&pt->heap, queue_nr, ptq->timestamp);
+ if (ret)
+ return ret;
+ ptq->on_heap = true;
+ }
+
+ return 0;
+}
+
+static int intel_pt_setup_queues(struct intel_pt *pt)
+{
+ unsigned int i;
+ int ret;
+
+ for (i = 0; i < pt->queues.nr_queues; i++) {
+ ret = intel_pt_setup_queue(pt, &pt->queues.queue_array[i], i);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int intel_pt_inject_event(union perf_event *event,
+ struct perf_sample *sample, u64 type,
+ bool swapped)
+{
+ event->header.size = perf_event__sample_event_size(sample, type, 0);
+ return perf_event__synthesize_sample(event, type, 0, sample, swapped);
+}
+
+static int intel_pt_synth_branch_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->branches_id;
+ sample.stream_id = ptq->pt->branches_id;
+ sample.period = 1;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ if (pt->branches_filter && !(pt->branches_filter & ptq->flags))
+ return 0;
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->branches_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver branch event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_instruction_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->instructions_id;
+ sample.stream_id = ptq->pt->instructions_id;
+ sample.period = ptq->state->tot_insn_cnt - ptq->last_insn_cnt;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ ptq->last_insn_cnt = ptq->state->tot_insn_cnt;
+
+ if (pt->synth_opts.callchain) {
+ thread_stack__sample(ptq->thread, ptq->chain,
+ pt->synth_opts.callchain_sz, sample.ip);
+ sample.callchain = ptq->chain;
+ }
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->instructions_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver instruction event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_transaction_sample(struct intel_pt_queue *ptq)
+{
+ int ret;
+ struct intel_pt *pt = ptq->pt;
+ union perf_event *event = ptq->event_buf;
+ struct perf_sample sample = { .ip = 0, };
+
+ event->sample.header.type = PERF_RECORD_SAMPLE;
+ event->sample.header.misc = PERF_RECORD_MISC_USER;
+ event->sample.header.size = sizeof(struct perf_event_header);
+
+ if (!pt->timeless_decoding)
+ sample.time = tsc_to_perf_time(ptq->timestamp, &pt->tc);
+
+ sample.ip = ptq->state->from_ip;
+ sample.pid = ptq->pid;
+ sample.tid = ptq->tid;
+ sample.addr = ptq->state->to_ip;
+ sample.id = ptq->pt->transactions_id;
+ sample.stream_id = ptq->pt->transactions_id;
+ sample.period = 1;
+ sample.cpu = ptq->cpu;
+ sample.flags = ptq->flags;
+ sample.insn_len = ptq->insn_len;
+
+ if (pt->synth_opts.callchain) {
+ thread_stack__sample(ptq->thread, ptq->chain,
+ pt->synth_opts.callchain_sz, sample.ip);
+ sample.callchain = ptq->chain;
+ }
+
+ if (pt->synth_opts.inject) {
+ ret = intel_pt_inject_event(event, &sample,
+ pt->transactions_sample_type,
+ pt->synth_needs_swap);
+ if (ret)
+ return ret;
+ }
+
+ ret = perf_session__deliver_synth_event(pt->session, event, &sample);
+ if (ret)
+ pr_err("Intel Processor Trace: failed to deliver transaction event, error %d\n",
+ ret);
+
+ return ret;
+}
+
+static int intel_pt_synth_error(struct intel_pt *pt, int code, int cpu,
+ pid_t pid, pid_t tid, u64 ip)
+{
+ union perf_event event;
+ char msg[MAX_AUXTRACE_ERROR_MSG];
+ int err;
+
+ intel_pt__strerror(code, msg, MAX_AUXTRACE_ERROR_MSG);
+
+ auxtrace_synth_error(&event.auxtrace_error, PERF_AUXTRACE_ERROR_ITRACE,
+ code, cpu, pid, tid, ip, msg);
+
+ err = perf_session__deliver_synth_event(pt->session, &event, NULL);
+ if (err)
+ pr_err("Intel Processor Trace: failed to deliver error event, error %d\n",
+ err);
+
+ return err;
+}
+
+static int intel_pt_next_tid(struct intel_pt *pt, struct intel_pt_queue *ptq)
+{
+ struct auxtrace_queue *queue;
+ pid_t tid = ptq->next_tid;
+ int err;
+
+ if (tid == -1)
+ return 0;
+
+ intel_pt_log("switch: cpu %d tid %d\n", ptq->cpu, tid);
+
+ err = machine__set_current_tid(pt->machine, ptq->cpu, -1, tid);
+
+ queue = &pt->queues.queue_array[ptq->queue_nr];
+ intel_pt_set_pid_tid_cpu(pt, queue);
+
+ ptq->next_tid = -1;
+
+ return err;
+}
+
+static inline bool intel_pt_is_switch_ip(struct intel_pt_queue *ptq, u64 ip)
+{
+ struct intel_pt *pt = ptq->pt;
+
+ return ip == pt->switch_ip &&
+ (ptq->flags & PERF_IP_FLAG_BRANCH) &&
+ !(ptq->flags & (PERF_IP_FLAG_CONDITIONAL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_INTERRUPT | PERF_IP_FLAG_TX_ABORT));
+}
+
+static int intel_pt_sample(struct intel_pt_queue *ptq)
+{
+ const struct intel_pt_state *state = ptq->state;
+ struct intel_pt *pt = ptq->pt;
+ int err;
+
+ if (!ptq->have_sample)
+ return 0;
+
+ ptq->have_sample = false;
+
+ if (pt->sample_instructions &&
+ (state->type & INTEL_PT_INSTRUCTION)) {
+ err = intel_pt_synth_instruction_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (pt->sample_transactions &&
+ (state->type & INTEL_PT_TRANSACTION)) {
+ err = intel_pt_synth_transaction_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (!(state->type & INTEL_PT_BRANCH))
+ return 0;
+
+ if (pt->synth_opts.callchain)
+ thread_stack__event(ptq->thread, ptq->flags, state->from_ip,
+ state->to_ip, ptq->insn_len,
+ state->trace_nr);
+ else
+ thread_stack__set_trace_nr(ptq->thread, state->trace_nr);
+
+ if (pt->sample_branches) {
+ err = intel_pt_synth_branch_sample(ptq);
+ if (err)
+ return err;
+ }
+
+ if (!pt->sync_switch)
+ return 0;
+
+ if (intel_pt_is_switch_ip(ptq, state->to_ip)) {
+ switch (ptq->switch_state) {
+ case INTEL_PT_SS_UNKNOWN:
+ case INTEL_PT_SS_EXPECTING_SWITCH_IP:
+ err = intel_pt_next_tid(pt, ptq);
+ if (err)
+ return err;
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ break;
+ default:
+ ptq->switch_state = INTEL_PT_SS_EXPECTING_SWITCH_EVENT;
+ return 1;
+ }
+ } else if (!state->to_ip) {
+ ptq->switch_state = INTEL_PT_SS_NOT_TRACING;
+ } else if (ptq->switch_state == INTEL_PT_SS_NOT_TRACING) {
+ ptq->switch_state = INTEL_PT_SS_UNKNOWN;
+ } else if (ptq->switch_state == INTEL_PT_SS_UNKNOWN &&
+ state->to_ip == pt->ptss_ip &&
+ (ptq->flags & PERF_IP_FLAG_CALL)) {
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ }
+
+ return 0;
+}
+
+static u64 intel_pt_switch_ip(struct machine *machine, u64 *ptss_ip)
+{
+ struct map *map;
+ struct symbol *sym, *start;
+ u64 ip, switch_ip = 0;
+
+ if (ptss_ip)
+ *ptss_ip = 0;
+
+ map = machine__kernel_map(machine, MAP__FUNCTION);
+ if (!map)
+ return 0;
+
+ if (map__load(map, machine->symbol_filter))
+ return 0;
+
+ start = dso__first_symbol(map->dso, MAP__FUNCTION);
+
+ for (sym = start; sym; sym = dso__next_symbol(sym)) {
+ if (sym->binding == STB_GLOBAL &&
+ !strcmp(sym->name, "__switch_to")) {
+ ip = map->unmap_ip(map, sym->start);
+ if (ip >= map->start && ip < map->end) {
+ switch_ip = ip;
+ break;
+ }
+ }
+ }
+
+ if (!switch_ip || !ptss_ip)
+ return 0;
+
+ for (sym = start; sym; sym = dso__next_symbol(sym)) {
+ if (!strcmp(sym->name, "perf_trace_sched_switch")) {
+ ip = map->unmap_ip(map, sym->start);
+ if (ip >= map->start && ip < map->end) {
+ *ptss_ip = ip;
+ break;
+ }
+ }
+ }
+
+ return switch_ip;
+}
+
+static int intel_pt_run_decoder(struct intel_pt_queue *ptq, u64 *timestamp)
+{
+ const struct intel_pt_state *state = ptq->state;
+ struct intel_pt *pt = ptq->pt;
+ int err;
+
+ if (!pt->kernel_start) {
+ pt->kernel_start = machine__kernel_start(pt->machine);
+ if (pt->per_cpu_mmaps && pt->have_sched_switch &&
+ !pt->timeless_decoding && intel_pt_tracing_kernel(pt) &&
+ !pt->sampling_mode) {
+ pt->switch_ip = intel_pt_switch_ip(pt->machine,
+ &pt->ptss_ip);
+ if (pt->switch_ip) {
+ intel_pt_log("switch_ip: %"PRIx64" ptss_ip: %"PRIx64"\n",
+ pt->switch_ip, pt->ptss_ip);
+ pt->sync_switch = true;
+ }
+ }
+ }
+
+ intel_pt_log("queue %u decoding cpu %d pid %d tid %d\n",
+ ptq->queue_nr, ptq->cpu, ptq->pid, ptq->tid);
+ while (1) {
+ err = intel_pt_sample(ptq);
+ if (err)
+ return err;
+
+ state = intel_pt_decode(ptq->decoder);
+ if (state->err) {
+ if (state->err == INTEL_PT_ERR_NODATA)
+ return 1;
+ if (pt->sync_switch &&
+ state->from_ip >= pt->kernel_start) {
+ pt->sync_switch = false;
+ intel_pt_next_tid(pt, ptq);
+ }
+ if (pt->synth_opts.errors) {
+ err = intel_pt_synth_error(pt, state->err,
+ ptq->cpu, ptq->pid,
+ ptq->tid,
+ state->from_ip);
+ if (err)
+ return err;
+ }
+ continue;
+ }
+
+ ptq->state = state;
+ ptq->have_sample = true;
+ intel_pt_sample_flags(ptq);
+
+ /* Use estimated TSC upon return to user space */
+ if (pt->est_tsc &&
+ (state->from_ip >= pt->kernel_start || !state->from_ip) &&
+ state->to_ip && state->to_ip < pt->kernel_start) {
+ intel_pt_log("TSC %"PRIx64" est. TSC %"PRIx64"\n",
+ state->timestamp, state->est_timestamp);
+ ptq->timestamp = state->est_timestamp;
+ /* Use estimated TSC in unknown switch state */
+ } else if (pt->sync_switch &&
+ ptq->switch_state == INTEL_PT_SS_UNKNOWN &&
+ intel_pt_is_switch_ip(ptq, state->to_ip) &&
+ ptq->next_tid == -1) {
+ intel_pt_log("TSC %"PRIx64" est. TSC %"PRIx64"\n",
+ state->timestamp, state->est_timestamp);
+ ptq->timestamp = state->est_timestamp;
+ } else if (state->timestamp > ptq->timestamp) {
+ ptq->timestamp = state->timestamp;
+ }
+
+ if (!pt->timeless_decoding && ptq->timestamp >= *timestamp) {
+ *timestamp = ptq->timestamp;
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static inline int intel_pt_update_queues(struct intel_pt *pt)
+{
+ if (pt->queues.new_data) {
+ pt->queues.new_data = false;
+ return intel_pt_setup_queues(pt);
+ }
+ return 0;
+}
+
+static int intel_pt_process_queues(struct intel_pt *pt, u64 timestamp)
+{
+ unsigned int queue_nr;
+ u64 ts;
+ int ret;
+
+ while (1) {
+ struct auxtrace_queue *queue;
+ struct intel_pt_queue *ptq;
+
+ if (!pt->heap.heap_cnt)
+ return 0;
+
+ if (pt->heap.heap_array[0].ordinal >= timestamp)
+ return 0;
+
+ queue_nr = pt->heap.heap_array[0].queue_nr;
+ queue = &pt->queues.queue_array[queue_nr];
+ ptq = queue->priv;
+
+ intel_pt_log("queue %u processing 0x%" PRIx64 " to 0x%" PRIx64 "\n",
+ queue_nr, pt->heap.heap_array[0].ordinal,
+ timestamp);
+
+ auxtrace_heap__pop(&pt->heap);
+
+ if (pt->heap.heap_cnt) {
+ ts = pt->heap.heap_array[0].ordinal + 1;
+ if (ts > timestamp)
+ ts = timestamp;
+ } else {
+ ts = timestamp;
+ }
+
+ intel_pt_set_pid_tid_cpu(pt, queue);
+
+ ret = intel_pt_run_decoder(ptq, &ts);
+
+ if (ret < 0) {
+ auxtrace_heap__add(&pt->heap, queue_nr, ts);
+ return ret;
+ }
+
+ if (!ret) {
+ ret = auxtrace_heap__add(&pt->heap, queue_nr, ts);
+ if (ret < 0)
+ return ret;
+ } else {
+ ptq->on_heap = false;
+ }
+ }
+
+ return 0;
+}
+
+static int intel_pt_process_timeless_queues(struct intel_pt *pt, pid_t tid,
+ u64 time_)
+{
+ struct auxtrace_queues *queues = &pt->queues;
+ unsigned int i;
+ u64 ts = 0;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ struct auxtrace_queue *queue = &pt->queues.queue_array[i];
+ struct intel_pt_queue *ptq = queue->priv;
+
+ if (ptq && (tid == -1 || ptq->tid == tid)) {
+ ptq->time = time_;
+ intel_pt_set_pid_tid_cpu(pt, queue);
+ intel_pt_run_decoder(ptq, &ts);
+ }
+ }
+ return 0;
+}
+
+static int intel_pt_lost(struct intel_pt *pt, struct perf_sample *sample)
+{
+ return intel_pt_synth_error(pt, INTEL_PT_ERR_LOST, sample->cpu,
+ sample->pid, sample->tid, 0);
+}
+
+static struct intel_pt_queue *intel_pt_cpu_to_ptq(struct intel_pt *pt, int cpu)
+{
+ unsigned i, j;
+
+ if (cpu < 0 || !pt->queues.nr_queues)
+ return NULL;
+
+ if ((unsigned)cpu >= pt->queues.nr_queues)
+ i = pt->queues.nr_queues - 1;
+ else
+ i = cpu;
+
+ if (pt->queues.queue_array[i].cpu == cpu)
+ return pt->queues.queue_array[i].priv;
+
+ for (j = 0; i > 0; j++) {
+ if (pt->queues.queue_array[--i].cpu == cpu)
+ return pt->queues.queue_array[i].priv;
+ }
+
+ for (; j < pt->queues.nr_queues; j++) {
+ if (pt->queues.queue_array[j].cpu == cpu)
+ return pt->queues.queue_array[j].priv;
+ }
+
+ return NULL;
+}
+
+static int intel_pt_process_switch(struct intel_pt *pt,
+ struct perf_sample *sample)
+{
+ struct intel_pt_queue *ptq;
+ struct perf_evsel *evsel;
+ pid_t tid;
+ int cpu, err;
+
+ evsel = perf_evlist__id2evsel(pt->session->evlist, sample->id);
+ if (evsel != pt->switch_evsel)
+ return 0;
+
+ tid = perf_evsel__intval(evsel, sample, "next_pid");
+ cpu = sample->cpu;
+
+ intel_pt_log("sched_switch: cpu %d tid %d time %"PRIu64" tsc %#"PRIx64"\n",
+ cpu, tid, sample->time, perf_time_to_tsc(sample->time,
+ &pt->tc));
+
+ if (!pt->sync_switch)
+ goto out;
+
+ ptq = intel_pt_cpu_to_ptq(pt, cpu);
+ if (!ptq)
+ goto out;
+
+ switch (ptq->switch_state) {
+ case INTEL_PT_SS_NOT_TRACING:
+ ptq->next_tid = -1;
+ break;
+ case INTEL_PT_SS_UNKNOWN:
+ case INTEL_PT_SS_TRACING:
+ ptq->next_tid = tid;
+ ptq->switch_state = INTEL_PT_SS_EXPECTING_SWITCH_IP;
+ return 0;
+ case INTEL_PT_SS_EXPECTING_SWITCH_EVENT:
+ if (!ptq->on_heap) {
+ ptq->timestamp = perf_time_to_tsc(sample->time,
+ &pt->tc);
+ err = auxtrace_heap__add(&pt->heap, ptq->queue_nr,
+ ptq->timestamp);
+ if (err)
+ return err;
+ ptq->on_heap = true;
+ }
+ ptq->switch_state = INTEL_PT_SS_TRACING;
+ break;
+ case INTEL_PT_SS_EXPECTING_SWITCH_IP:
+ ptq->next_tid = tid;
+ intel_pt_log("ERROR: cpu %d expecting switch ip\n", cpu);
+ break;
+ default:
+ break;
+ }
+out:
+ return machine__set_current_tid(pt->machine, cpu, -1, tid);
+}
+
+static int intel_pt_process_itrace_start(struct intel_pt *pt,
+ union perf_event *event,
+ struct perf_sample *sample)
+{
+ if (!pt->per_cpu_mmaps)
+ return 0;
+
+ intel_pt_log("itrace_start: cpu %d pid %d tid %d time %"PRIu64" tsc %#"PRIx64"\n",
+ sample->cpu, event->itrace_start.pid,
+ event->itrace_start.tid, sample->time,
+ perf_time_to_tsc(sample->time, &pt->tc));
+
+ return machine__set_current_tid(pt->machine, sample->cpu,
+ event->itrace_start.pid,
+ event->itrace_start.tid);
+}
+
+static int intel_pt_process_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_tool *tool)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ u64 timestamp;
+ int err = 0;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events) {
+ pr_err("Intel Processor Trace requires ordered events\n");
+ return -EINVAL;
+ }
+
+ if (sample->time && sample->time != (u64)-1)
+ timestamp = perf_time_to_tsc(sample->time, &pt->tc);
+ else
+ timestamp = 0;
+
+ if (timestamp || pt->timeless_decoding) {
+ err = intel_pt_update_queues(pt);
+ if (err)
+ return err;
+ }
+
+ if (pt->timeless_decoding) {
+ if (event->header.type == PERF_RECORD_EXIT) {
+ err = intel_pt_process_timeless_queues(pt,
+ event->comm.tid,
+ sample->time);
+ }
+ } else if (timestamp) {
+ err = intel_pt_process_queues(pt, timestamp);
+ }
+ if (err)
+ return err;
+
+ if (event->header.type == PERF_RECORD_AUX &&
+ (event->aux.flags & PERF_AUX_FLAG_TRUNCATED) &&
+ pt->synth_opts.errors) {
+ err = intel_pt_lost(pt, sample);
+ if (err)
+ return err;
+ }
+
+ if (pt->switch_evsel && event->header.type == PERF_RECORD_SAMPLE)
+ err = intel_pt_process_switch(pt, sample);
+ else if (event->header.type == PERF_RECORD_ITRACE_START)
+ err = intel_pt_process_itrace_start(pt, event, sample);
+
+ intel_pt_log("event %s (%u): cpu %d time %"PRIu64" tsc %#"PRIx64"\n",
+ perf_event__name(event->header.type), event->header.type,
+ sample->cpu, sample->time, timestamp);
+
+ return err;
+}
+
+static int intel_pt_flush(struct perf_session *session, struct perf_tool *tool)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ int ret;
+
+ if (dump_trace)
+ return 0;
+
+ if (!tool->ordered_events)
+ return -EINVAL;
+
+ ret = intel_pt_update_queues(pt);
+ if (ret < 0)
+ return ret;
+
+ if (pt->timeless_decoding)
+ return intel_pt_process_timeless_queues(pt, -1,
+ MAX_TIMESTAMP - 1);
+
+ return intel_pt_process_queues(pt, MAX_TIMESTAMP);
+}
+
+static void intel_pt_free_events(struct perf_session *session)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+ struct auxtrace_queues *queues = &pt->queues;
+ unsigned int i;
+
+ for (i = 0; i < queues->nr_queues; i++) {
+ intel_pt_free_queue(queues->queue_array[i].priv);
+ queues->queue_array[i].priv = NULL;
+ }
+ intel_pt_log_disable();
+ auxtrace_queues__free(queues);
+}
+
+static void intel_pt_free(struct perf_session *session)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+
+ auxtrace_heap__free(&pt->heap);
+ intel_pt_free_events(session);
+ session->auxtrace = NULL;
+ thread__delete(pt->unknown_thread);
+ free(pt);
+}
+
+static int intel_pt_process_auxtrace_event(struct perf_session *session,
+ union perf_event *event,
+ struct perf_tool *tool __maybe_unused)
+{
+ struct intel_pt *pt = container_of(session->auxtrace, struct intel_pt,
+ auxtrace);
+
+ if (pt->sampling_mode)
+ return 0;
+
+ if (!pt->data_queued) {
+ struct auxtrace_buffer *buffer;
+ off_t data_offset;
+ int fd = perf_data_file__fd(session->file);
+ int err;
+
+ if (perf_data_file__is_pipe(session->file)) {
+ data_offset = 0;
+ } else {
+ data_offset = lseek(fd, 0, SEEK_CUR);
+ if (data_offset == -1)
+ return -errno;
+ }
+
+ err = auxtrace_queues__add_event(&pt->queues, session, event,
+ data_offset, &buffer);
+ if (err)
+ return err;
+
+ /* Dump here now we have copied a piped trace out of the pipe */
+ if (dump_trace) {
+ if (auxtrace_buffer__get_data(buffer, fd)) {
+ intel_pt_dump_event(pt, buffer->data,
+ buffer->size);
+ auxtrace_buffer__put_data(buffer);
+ }
+ }
+ }
+
+ return 0;
+}
+
+struct intel_pt_synth {
+ struct perf_tool dummy_tool;
+ struct perf_session *session;
+};
+
+static int intel_pt_event_synth(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine __maybe_unused)
+{
+ struct intel_pt_synth *intel_pt_synth =
+ container_of(tool, struct intel_pt_synth, dummy_tool);
+
+ return perf_session__deliver_synth_event(intel_pt_synth->session, event,
+ NULL);
+}
+
+static int intel_pt_synth_event(struct perf_session *session,
+ struct perf_event_attr *attr, u64 id)
+{
+ struct intel_pt_synth intel_pt_synth;
+
+ memset(&intel_pt_synth, 0, sizeof(struct intel_pt_synth));
+ intel_pt_synth.session = session;
+
+ return perf_event__synthesize_attr(&intel_pt_synth.dummy_tool, attr, 1,
+ &id, intel_pt_event_synth);
+}
+
+static int intel_pt_synth_events(struct intel_pt *pt,
+ struct perf_session *session)
+{
+ struct perf_evlist *evlist = session->evlist;
+ struct perf_evsel *evsel;
+ struct perf_event_attr attr;
+ bool found = false;
+ u64 id;
+ int err;
+
+ evlist__for_each(evlist, evsel) {
+ if (evsel->attr.type == pt->pmu_type && evsel->ids) {
+ found = true;
+ break;
+ }
+ }
+
+ if (!found) {
+ pr_debug("There are no selected events with Intel Processor Trace data\n");
+ return 0;
+ }
+
+ memset(&attr, 0, sizeof(struct perf_event_attr));
+ attr.size = sizeof(struct perf_event_attr);
+ attr.type = PERF_TYPE_HARDWARE;
+ attr.sample_type = evsel->attr.sample_type & PERF_SAMPLE_MASK;
+ attr.sample_type |= PERF_SAMPLE_IP | PERF_SAMPLE_TID |
+ PERF_SAMPLE_PERIOD;
+ if (pt->timeless_decoding)
+ attr.sample_type &= ~(u64)PERF_SAMPLE_TIME;
+ else
+ attr.sample_type |= PERF_SAMPLE_TIME;
+ if (!pt->per_cpu_mmaps)
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CPU;
+ attr.exclude_user = evsel->attr.exclude_user;
+ attr.exclude_kernel = evsel->attr.exclude_kernel;
+ attr.exclude_hv = evsel->attr.exclude_hv;
+ attr.exclude_host = evsel->attr.exclude_host;
+ attr.exclude_guest = evsel->attr.exclude_guest;
+ attr.sample_id_all = evsel->attr.sample_id_all;
+ attr.read_format = evsel->attr.read_format;
+
+ id = evsel->id[0] + 1000000000;
+ if (!id)
+ id = 1;
+
+ if (pt->synth_opts.instructions) {
+ attr.config = PERF_COUNT_HW_INSTRUCTIONS;
+ if (pt->synth_opts.period_type == PERF_ITRACE_PERIOD_NANOSECS)
+ attr.sample_period =
+ intel_pt_ns_to_ticks(pt, pt->synth_opts.period);
+ else
+ attr.sample_period = pt->synth_opts.period;
+ pt->instructions_sample_period = attr.sample_period;
+ if (pt->synth_opts.callchain)
+ attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'instructions' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'instructions' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_instructions = true;
+ pt->instructions_sample_type = attr.sample_type;
+ pt->instructions_id = id;
+ id += 1;
+ }
+
+ if (pt->synth_opts.transactions) {
+ attr.config = PERF_COUNT_HW_INSTRUCTIONS;
+ attr.sample_period = 1;
+ if (pt->synth_opts.callchain)
+ attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'transactions' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'transactions' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_transactions = true;
+ pt->transactions_id = id;
+ id += 1;
+ evlist__for_each(evlist, evsel) {
+ if (evsel->id && evsel->id[0] == pt->transactions_id) {
+ if (evsel->name)
+ zfree(&evsel->name);
+ evsel->name = strdup("transactions");
+ break;
+ }
+ }
+ }
+
+ if (pt->synth_opts.branches) {
+ attr.config = PERF_COUNT_HW_BRANCH_INSTRUCTIONS;
+ attr.sample_period = 1;
+ attr.sample_type |= PERF_SAMPLE_ADDR;
+ attr.sample_type &= ~(u64)PERF_SAMPLE_CALLCHAIN;
+ pr_debug("Synthesizing 'branches' event with id %" PRIu64 " sample type %#" PRIx64 "\n",
+ id, (u64)attr.sample_type);
+ err = intel_pt_synth_event(session, &attr, id);
+ if (err) {
+ pr_err("%s: failed to synthesize 'branches' event type\n",
+ __func__);
+ return err;
+ }
+ pt->sample_branches = true;
+ pt->branches_sample_type = attr.sample_type;
+ pt->branches_id = id;
+ }
+
+ pt->synth_needs_swap = evsel->needs_swap;
+
+ return 0;
+}
+
+static struct perf_evsel *intel_pt_find_sched_switch(struct perf_evlist *evlist)
+{
+ struct perf_evsel *evsel;
+
+ evlist__for_each_reverse(evlist, evsel) {
+ const char *name = perf_evsel__name(evsel);
+
+ if (!strcmp(name, "sched:sched_switch"))
+ return evsel;
+ }
+
+ return NULL;
+}
+
+static const char * const intel_pt_info_fmts[] = {
+ [INTEL_PT_PMU_TYPE] = " PMU Type %"PRId64"\n",
+ [INTEL_PT_TIME_SHIFT] = " Time Shift %"PRIu64"\n",
+ [INTEL_PT_TIME_MULT] = " Time Muliplier %"PRIu64"\n",
+ [INTEL_PT_TIME_ZERO] = " Time Zero %"PRIu64"\n",
+ [INTEL_PT_CAP_USER_TIME_ZERO] = " Cap Time Zero %"PRId64"\n",
+ [INTEL_PT_TSC_BIT] = " TSC bit %#"PRIx64"\n",
+ [INTEL_PT_NORETCOMP_BIT] = " NoRETComp bit %#"PRIx64"\n",
+ [INTEL_PT_HAVE_SCHED_SWITCH] = " Have sched_switch %"PRId64"\n",
+ [INTEL_PT_SNAPSHOT_MODE] = " Snapshot mode %"PRId64"\n",
+ [INTEL_PT_PER_CPU_MMAPS] = " Per-cpu maps %"PRId64"\n",
+ [INTEL_PT_MTC_BIT] = " MTC bit %#"PRIx64"\n",
+ [INTEL_PT_TSC_CTC_N] = " TSC:CTC numerator %"PRIu64"\n",
+ [INTEL_PT_TSC_CTC_D] = " TSC:CTC denominator %"PRIu64"\n",
+ [INTEL_PT_CYC_BIT] = " CYC bit %#"PRIx64"\n",
+};
+
+static void intel_pt_print_info(u64 *arr, int start, int finish)
+{
+ int i;
+
+ if (!dump_trace)
+ return;
+
+ for (i = start; i <= finish; i++)
+ fprintf(stdout, intel_pt_info_fmts[i], arr[i]);
+}
+
+int intel_pt_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct auxtrace_info_event *auxtrace_info = &event->auxtrace_info;
+ size_t min_sz = sizeof(u64) * INTEL_PT_PER_CPU_MMAPS;
+ struct intel_pt *pt;
+ int err;
+
+ if (auxtrace_info->header.size < sizeof(struct auxtrace_info_event) +
+ min_sz)
+ return -EINVAL;
+
+ pt = zalloc(sizeof(struct intel_pt));
+ if (!pt)
+ return -ENOMEM;
+
+ err = auxtrace_queues__init(&pt->queues);
+ if (err)
+ goto err_free;
+
+ intel_pt_log_set_name(INTEL_PT_PMU_NAME);
+
+ pt->session = session;
+ pt->machine = &session->machines.host; /* No kvm support */
+ pt->auxtrace_type = auxtrace_info->type;
+ pt->pmu_type = auxtrace_info->priv[INTEL_PT_PMU_TYPE];
+ pt->tc.time_shift = auxtrace_info->priv[INTEL_PT_TIME_SHIFT];
+ pt->tc.time_mult = auxtrace_info->priv[INTEL_PT_TIME_MULT];
+ pt->tc.time_zero = auxtrace_info->priv[INTEL_PT_TIME_ZERO];
+ pt->cap_user_time_zero = auxtrace_info->priv[INTEL_PT_CAP_USER_TIME_ZERO];
+ pt->tsc_bit = auxtrace_info->priv[INTEL_PT_TSC_BIT];
+ pt->noretcomp_bit = auxtrace_info->priv[INTEL_PT_NORETCOMP_BIT];
+ pt->have_sched_switch = auxtrace_info->priv[INTEL_PT_HAVE_SCHED_SWITCH];
+ pt->snapshot_mode = auxtrace_info->priv[INTEL_PT_SNAPSHOT_MODE];
+ pt->per_cpu_mmaps = auxtrace_info->priv[INTEL_PT_PER_CPU_MMAPS];
+ intel_pt_print_info(&auxtrace_info->priv[0], INTEL_PT_PMU_TYPE,
+ INTEL_PT_PER_CPU_MMAPS);
+
+ if (auxtrace_info->header.size >= sizeof(struct auxtrace_info_event) +
+ (sizeof(u64) * INTEL_PT_CYC_BIT)) {
+ pt->mtc_bit = auxtrace_info->priv[INTEL_PT_MTC_BIT];
+ pt->mtc_freq_bits = auxtrace_info->priv[INTEL_PT_MTC_FREQ_BITS];
+ pt->tsc_ctc_ratio_n = auxtrace_info->priv[INTEL_PT_TSC_CTC_N];
+ pt->tsc_ctc_ratio_d = auxtrace_info->priv[INTEL_PT_TSC_CTC_D];
+ pt->cyc_bit = auxtrace_info->priv[INTEL_PT_CYC_BIT];
+ intel_pt_print_info(&auxtrace_info->priv[0], INTEL_PT_MTC_BIT,
+ INTEL_PT_CYC_BIT);
+ }
+
+ pt->timeless_decoding = intel_pt_timeless_decoding(pt);
+ pt->have_tsc = intel_pt_have_tsc(pt);
+ pt->sampling_mode = false;
+ pt->est_tsc = !pt->timeless_decoding;
+
+ pt->unknown_thread = thread__new(999999999, 999999999);
+ if (!pt->unknown_thread) {
+ err = -ENOMEM;
+ goto err_free_queues;
+ }
+ err = thread__set_comm(pt->unknown_thread, "unknown", 0);
+ if (err)
+ goto err_delete_thread;
+ if (thread__init_map_groups(pt->unknown_thread, pt->machine)) {
+ err = -ENOMEM;
+ goto err_delete_thread;
+ }
+
+ pt->auxtrace.process_event = intel_pt_process_event;
+ pt->auxtrace.process_auxtrace_event = intel_pt_process_auxtrace_event;
+ pt->auxtrace.flush_events = intel_pt_flush;
+ pt->auxtrace.free_events = intel_pt_free_events;
+ pt->auxtrace.free = intel_pt_free;
+ session->auxtrace = &pt->auxtrace;
+
+ if (dump_trace)
+ return 0;
+
+ if (pt->have_sched_switch == 1) {
+ pt->switch_evsel = intel_pt_find_sched_switch(session->evlist);
+ if (!pt->switch_evsel) {
+ pr_err("%s: missing sched_switch event\n", __func__);
+ goto err_delete_thread;
+ }
+ }
+
+ if (session->itrace_synth_opts && session->itrace_synth_opts->set) {
+ pt->synth_opts = *session->itrace_synth_opts;
+ } else {
+ itrace_synth_opts__set_default(&pt->synth_opts);
+ if (use_browser != -1) {
+ pt->synth_opts.branches = false;
+ pt->synth_opts.callchain = true;
+ }
+ }
+
+ if (pt->synth_opts.log)
+ intel_pt_log_enable();
+
+ /* Maximum non-turbo ratio is TSC freq / 100 MHz */
+ if (pt->tc.time_mult) {
+ u64 tsc_freq = intel_pt_ns_to_ticks(pt, 1000000000);
+
+ pt->max_non_turbo_ratio = (tsc_freq + 50000000) / 100000000;
+ intel_pt_log("TSC frequency %"PRIu64"\n", tsc_freq);
+ intel_pt_log("Maximum non-turbo ratio %u\n",
+ pt->max_non_turbo_ratio);
+ }
+
+ if (pt->synth_opts.calls)
+ pt->branches_filter |= PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |
+ PERF_IP_FLAG_TRACE_END;
+ if (pt->synth_opts.returns)
+ pt->branches_filter |= PERF_IP_FLAG_RETURN |
+ PERF_IP_FLAG_TRACE_BEGIN;
+
+ if (pt->synth_opts.callchain && !symbol_conf.use_callchain) {
+ symbol_conf.use_callchain = true;
+ if (callchain_register_param(&callchain_param) < 0) {
+ symbol_conf.use_callchain = false;
+ pt->synth_opts.callchain = false;
+ }
+ }
+
+ err = intel_pt_synth_events(pt, session);
+ if (err)
+ goto err_delete_thread;
+
+ err = auxtrace_queues__process_index(&pt->queues, session);
+ if (err)
+ goto err_delete_thread;
+
+ if (pt->queues.populated)
+ pt->data_queued = true;
+
+ if (pt->timeless_decoding)
+ pr_debug2("Intel PT decoding without timestamps\n");
+
+ return 0;
+
+err_delete_thread:
+ thread__delete(pt->unknown_thread);
+err_free_queues:
+ intel_pt_log_disable();
+ auxtrace_queues__free(&pt->queues);
+ session->auxtrace = NULL;
+err_free:
+ free(pt);
+ return err;
+}
diff --git a/tools/perf/util/intel-pt.h b/tools/perf/util/intel-pt.h
new file mode 100644
index 000000000000..0065949df693
--- /dev/null
+++ b/tools/perf/util/intel-pt.h
@@ -0,0 +1,56 @@
+/*
+ * intel_pt.h: Intel Processor Trace support
+ * Copyright (c) 2013-2015, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef INCLUDE__PERF_INTEL_PT_H__
+#define INCLUDE__PERF_INTEL_PT_H__
+
+#define INTEL_PT_PMU_NAME "intel_pt"
+
+enum {
+ INTEL_PT_PMU_TYPE,
+ INTEL_PT_TIME_SHIFT,
+ INTEL_PT_TIME_MULT,
+ INTEL_PT_TIME_ZERO,
+ INTEL_PT_CAP_USER_TIME_ZERO,
+ INTEL_PT_TSC_BIT,
+ INTEL_PT_NORETCOMP_BIT,
+ INTEL_PT_HAVE_SCHED_SWITCH,
+ INTEL_PT_SNAPSHOT_MODE,
+ INTEL_PT_PER_CPU_MMAPS,
+ INTEL_PT_MTC_BIT,
+ INTEL_PT_MTC_FREQ_BITS,
+ INTEL_PT_TSC_CTC_N,
+ INTEL_PT_TSC_CTC_D,
+ INTEL_PT_CYC_BIT,
+ INTEL_PT_AUXTRACE_PRIV_MAX,
+};
+
+#define INTEL_PT_AUXTRACE_PRIV_SIZE (INTEL_PT_AUXTRACE_PRIV_MAX * sizeof(u64))
+
+struct auxtrace_record;
+struct perf_tool;
+union perf_event;
+struct perf_session;
+struct perf_event_attr;
+struct perf_pmu;
+
+struct auxtrace_record *intel_pt_recording_init(int *err);
+
+int intel_pt_process_auxtrace_info(union perf_event *event,
+ struct perf_session *session);
+
+struct perf_event_attr *intel_pt_pmu_default_config(struct perf_pmu *pmu);
+
+#endif
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
new file mode 100644
index 000000000000..4f6a4780bd5f
--- /dev/null
+++ b/tools/perf/util/llvm-utils.c
@@ -0,0 +1,408 @@
+/*
+ * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015, Huawei Inc.
+ */
+
+#include <stdio.h>
+#include <sys/utsname.h>
+#include "util.h"
+#include "debug.h"
+#include "llvm-utils.h"
+#include "cache.h"
+
+#define CLANG_BPF_CMD_DEFAULT_TEMPLATE \
+ "$CLANG_EXEC -D__KERNEL__ $CLANG_OPTIONS " \
+ "$KERNEL_INC_OPTIONS -Wno-unused-value " \
+ "-Wno-pointer-sign -working-directory " \
+ "$WORKING_DIR -c \"$CLANG_SOURCE\" -target bpf -O2 -o -"
+
+struct llvm_param llvm_param = {
+ .clang_path = "clang",
+ .clang_bpf_cmd_template = CLANG_BPF_CMD_DEFAULT_TEMPLATE,
+ .clang_opt = NULL,
+ .kbuild_dir = NULL,
+ .kbuild_opts = NULL,
+ .user_set_param = false,
+};
+
+int perf_llvm_config(const char *var, const char *value)
+{
+ if (prefixcmp(var, "llvm."))
+ return 0;
+ var += sizeof("llvm.") - 1;
+
+ if (!strcmp(var, "clang-path"))
+ llvm_param.clang_path = strdup(value);
+ else if (!strcmp(var, "clang-bpf-cmd-template"))
+ llvm_param.clang_bpf_cmd_template = strdup(value);
+ else if (!strcmp(var, "clang-opt"))
+ llvm_param.clang_opt = strdup(value);
+ else if (!strcmp(var, "kbuild-dir"))
+ llvm_param.kbuild_dir = strdup(value);
+ else if (!strcmp(var, "kbuild-opts"))
+ llvm_param.kbuild_opts = strdup(value);
+ else
+ return -1;
+ llvm_param.user_set_param = true;
+ return 0;
+}
+
+static int
+search_program(const char *def, const char *name,
+ char *output)
+{
+ char *env, *path, *tmp = NULL;
+ char buf[PATH_MAX];
+ int ret;
+
+ output[0] = '\0';
+ if (def && def[0] != '\0') {
+ if (def[0] == '/') {
+ if (access(def, F_OK) == 0) {
+ strlcpy(output, def, PATH_MAX);
+ return 0;
+ }
+ } else if (def[0] != '\0')
+ name = def;
+ }
+
+ env = getenv("PATH");
+ if (!env)
+ return -1;
+ env = strdup(env);
+ if (!env)
+ return -1;
+
+ ret = -ENOENT;
+ path = strtok_r(env, ":", &tmp);
+ while (path) {
+ scnprintf(buf, sizeof(buf), "%s/%s", path, name);
+ if (access(buf, F_OK) == 0) {
+ strlcpy(output, buf, PATH_MAX);
+ ret = 0;
+ break;
+ }
+ path = strtok_r(NULL, ":", &tmp);
+ }
+
+ free(env);
+ return ret;
+}
+
+#define READ_SIZE 4096
+static int
+read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
+{
+ int err = 0;
+ void *buf = NULL;
+ FILE *file = NULL;
+ size_t read_sz = 0, buf_sz = 0;
+
+ file = popen(cmd, "r");
+ if (!file) {
+ pr_err("ERROR: unable to popen cmd: %s\n",
+ strerror(errno));
+ return -EINVAL;
+ }
+
+ while (!feof(file) && !ferror(file)) {
+ /*
+ * Make buf_sz always have obe byte extra space so we
+ * can put '\0' there.
+ */
+ if (buf_sz - read_sz < READ_SIZE + 1) {
+ void *new_buf;
+
+ buf_sz = read_sz + READ_SIZE + 1;
+ new_buf = realloc(buf, buf_sz);
+
+ if (!new_buf) {
+ pr_err("ERROR: failed to realloc memory\n");
+ err = -ENOMEM;
+ goto errout;
+ }
+
+ buf = new_buf;
+ }
+ read_sz += fread(buf + read_sz, 1, READ_SIZE, file);
+ }
+
+ if (buf_sz - read_sz < 1) {
+ pr_err("ERROR: internal error\n");
+ err = -EINVAL;
+ goto errout;
+ }
+
+ if (ferror(file)) {
+ pr_err("ERROR: error occurred when reading from pipe: %s\n",
+ strerror(errno));
+ err = -EIO;
+ goto errout;
+ }
+
+ err = WEXITSTATUS(pclose(file));
+ file = NULL;
+ if (err) {
+ err = -EINVAL;
+ goto errout;
+ }
+
+ /*
+ * If buf is string, give it terminal '\0' to make our life
+ * easier. If buf is not string, that '\0' is out of space
+ * indicated by read_sz so caller won't even notice it.
+ */
+ ((char *)buf)[read_sz] = '\0';
+
+ if (!p_buf)
+ free(buf);
+ else
+ *p_buf = buf;
+
+ if (p_read_sz)
+ *p_read_sz = read_sz;
+ return 0;
+
+errout:
+ if (file)
+ pclose(file);
+ free(buf);
+ if (p_buf)
+ *p_buf = NULL;
+ if (p_read_sz)
+ *p_read_sz = 0;
+ return err;
+}
+
+static inline void
+force_set_env(const char *var, const char *value)
+{
+ if (value) {
+ setenv(var, value, 1);
+ pr_debug("set env: %s=%s\n", var, value);
+ } else {
+ unsetenv(var);
+ pr_debug("unset env: %s\n", var);
+ }
+}
+
+static void
+version_notice(void)
+{
+ pr_err(
+" \tLLVM 3.7 or newer is required. Which can be found from http://llvm.org\n"
+" \tYou may want to try git trunk:\n"
+" \t\tgit clone http://llvm.org/git/llvm.git\n"
+" \t\t and\n"
+" \t\tgit clone http://llvm.org/git/clang.git\n\n"
+" \tOr fetch the latest clang/llvm 3.7 from pre-built llvm packages for\n"
+" \tdebian/ubuntu:\n"
+" \t\thttp://llvm.org/apt\n\n"
+" \tIf you are using old version of clang, change 'clang-bpf-cmd-template'\n"
+" \toption in [llvm] section of ~/.perfconfig to:\n\n"
+" \t \"$CLANG_EXEC $CLANG_OPTIONS $KERNEL_INC_OPTIONS \\\n"
+" \t -working-directory $WORKING_DIR -c $CLANG_SOURCE \\\n"
+" \t -emit-llvm -o - | /path/to/llc -march=bpf -filetype=obj -o -\"\n"
+" \t(Replace /path/to/llc with path to your llc)\n\n"
+);
+}
+
+static int detect_kbuild_dir(char **kbuild_dir)
+{
+ const char *test_dir = llvm_param.kbuild_dir;
+ const char *prefix_dir = "";
+ const char *suffix_dir = "";
+
+ char *autoconf_path;
+ struct utsname utsname;
+
+ int err;
+
+ if (!test_dir) {
+ err = uname(&utsname);
+ if (err) {
+ pr_warning("uname failed: %s\n", strerror(errno));
+ return -EINVAL;
+ }
+
+ test_dir = utsname.release;
+ prefix_dir = "/lib/modules/";
+ suffix_dir = "/build";
+ }
+
+ err = asprintf(&autoconf_path, "%s%s%s/include/generated/autoconf.h",
+ prefix_dir, test_dir, suffix_dir);
+ if (err < 0)
+ return -ENOMEM;
+
+ if (access(autoconf_path, R_OK) == 0) {
+ free(autoconf_path);
+
+ err = asprintf(kbuild_dir, "%s%s%s", prefix_dir, test_dir,
+ suffix_dir);
+ if (err < 0)
+ return -ENOMEM;
+ return 0;
+ }
+ free(autoconf_path);
+ return -ENOENT;
+}
+
+static const char *kinc_fetch_script =
+"#!/usr/bin/env sh\n"
+"if ! test -d \"$KBUILD_DIR\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"if ! test -f \"$KBUILD_DIR/include/generated/autoconf.h\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"TMPDIR=`mktemp -d`\n"
+"if test -z \"$TMPDIR\"\n"
+"then\n"
+" exit -1\n"
+"fi\n"
+"cat << EOF > $TMPDIR/Makefile\n"
+"obj-y := dummy.o\n"
+"\\$(obj)/%.o: \\$(src)/%.c\n"
+"\t@echo -n \"\\$(NOSTDINC_FLAGS) \\$(LINUXINCLUDE) \\$(EXTRA_CFLAGS)\"\n"
+"EOF\n"
+"touch $TMPDIR/dummy.c\n"
+"make -s -C $KBUILD_DIR M=$TMPDIR $KBUILD_OPTS dummy.o 2>/dev/null\n"
+"RET=$?\n"
+"rm -rf $TMPDIR\n"
+"exit $RET\n";
+
+static inline void
+get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts)
+{
+ int err;
+
+ if (!kbuild_dir || !kbuild_include_opts)
+ return;
+
+ *kbuild_dir = NULL;
+ *kbuild_include_opts = NULL;
+
+ if (llvm_param.kbuild_dir && !llvm_param.kbuild_dir[0]) {
+ pr_debug("[llvm.kbuild-dir] is set to \"\" deliberately.\n");
+ pr_debug("Skip kbuild options detection.\n");
+ return;
+ }
+
+ err = detect_kbuild_dir(kbuild_dir);
+ if (err) {
+ pr_warning(
+"WARNING:\tunable to get correct kernel building directory.\n"
+"Hint:\tSet correct kbuild directory using 'kbuild-dir' option in [llvm]\n"
+" \tsection of ~/.perfconfig or set it to \"\" to suppress kbuild\n"
+" \tdetection.\n\n");
+ return;
+ }
+
+ pr_debug("Kernel build dir is set to %s\n", *kbuild_dir);
+ force_set_env("KBUILD_DIR", *kbuild_dir);
+ force_set_env("KBUILD_OPTS", llvm_param.kbuild_opts);
+ err = read_from_pipe(kinc_fetch_script,
+ (void **)kbuild_include_opts,
+ NULL);
+ if (err) {
+ pr_warning(
+"WARNING:\tunable to get kernel include directories from '%s'\n"
+"Hint:\tTry set clang include options using 'clang-bpf-cmd-template'\n"
+" \toption in [llvm] section of ~/.perfconfig and set 'kbuild-dir'\n"
+" \toption in [llvm] to \"\" to suppress this detection.\n\n",
+ *kbuild_dir);
+
+ free(*kbuild_dir);
+ *kbuild_dir = NULL;
+ return;
+ }
+
+ pr_debug("include option is set to %s\n", *kbuild_include_opts);
+}
+
+int llvm__compile_bpf(const char *path, void **p_obj_buf,
+ size_t *p_obj_buf_sz)
+{
+ int err;
+ char clang_path[PATH_MAX];
+ const char *clang_opt = llvm_param.clang_opt;
+ const char *template = llvm_param.clang_bpf_cmd_template;
+ char *kbuild_dir = NULL, *kbuild_include_opts = NULL;
+ void *obj_buf = NULL;
+ size_t obj_buf_sz;
+
+ if (!template)
+ template = CLANG_BPF_CMD_DEFAULT_TEMPLATE;
+
+ err = search_program(llvm_param.clang_path,
+ "clang", clang_path);
+ if (err) {
+ pr_err(
+"ERROR:\tunable to find clang.\n"
+"Hint:\tTry to install latest clang/llvm to support BPF. Check your $PATH\n"
+" \tand 'clang-path' option in [llvm] section of ~/.perfconfig.\n");
+ version_notice();
+ return -ENOENT;
+ }
+
+ /*
+ * This is an optional work. Even it fail we can continue our
+ * work. Needn't to check error return.
+ */
+ get_kbuild_opts(&kbuild_dir, &kbuild_include_opts);
+
+ force_set_env("CLANG_EXEC", clang_path);
+ force_set_env("CLANG_OPTIONS", clang_opt);
+ force_set_env("KERNEL_INC_OPTIONS", kbuild_include_opts);
+ force_set_env("WORKING_DIR", kbuild_dir ? : ".");
+
+ /*
+ * Since we may reset clang's working dir, path of source file
+ * should be transferred into absolute path, except we want
+ * stdin to be source file (testing).
+ */
+ force_set_env("CLANG_SOURCE",
+ (path[0] == '-') ? path :
+ make_nonrelative_path(path));
+
+ pr_debug("llvm compiling command template: %s\n", template);
+ err = read_from_pipe(template, &obj_buf, &obj_buf_sz);
+ if (err) {
+ pr_err("ERROR:\tunable to compile %s\n", path);
+ pr_err("Hint:\tCheck error message shown above.\n");
+ pr_err("Hint:\tYou can also pre-compile it into .o using:\n");
+ pr_err(" \t\tclang -target bpf -O2 -c %s\n", path);
+ pr_err(" \twith proper -I and -D options.\n");
+ goto errout;
+ }
+
+ free(kbuild_dir);
+ free(kbuild_include_opts);
+ if (!p_obj_buf)
+ free(obj_buf);
+ else
+ *p_obj_buf = obj_buf;
+
+ if (p_obj_buf_sz)
+ *p_obj_buf_sz = obj_buf_sz;
+ return 0;
+errout:
+ free(kbuild_dir);
+ free(kbuild_include_opts);
+ free(obj_buf);
+ if (p_obj_buf)
+ *p_obj_buf = NULL;
+ if (p_obj_buf_sz)
+ *p_obj_buf_sz = 0;
+ return err;
+}
+
+int llvm__search_clang(void)
+{
+ char clang_path[PATH_MAX];
+
+ return search_program(llvm_param.clang_path, "clang", clang_path);
+}
diff --git a/tools/perf/util/llvm-utils.h b/tools/perf/util/llvm-utils.h
new file mode 100644
index 000000000000..5b3cf1c229e2
--- /dev/null
+++ b/tools/perf/util/llvm-utils.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
+ * Copyright (C) 2015, Huawei Inc.
+ */
+#ifndef __LLVM_UTILS_H
+#define __LLVM_UTILS_H
+
+#include "debug.h"
+
+struct llvm_param {
+ /* Path of clang executable */
+ const char *clang_path;
+ /*
+ * Template of clang bpf compiling. 5 env variables
+ * can be used:
+ * $CLANG_EXEC: Path to clang.
+ * $CLANG_OPTIONS: Extra options to clang.
+ * $KERNEL_INC_OPTIONS: Kernel include directories.
+ * $WORKING_DIR: Kernel source directory.
+ * $CLANG_SOURCE: Source file to be compiled.
+ */
+ const char *clang_bpf_cmd_template;
+ /* Will be filled in $CLANG_OPTIONS */
+ const char *clang_opt;
+ /* Where to find kbuild system */
+ const char *kbuild_dir;
+ /*
+ * Arguments passed to make, like 'ARCH=arm' if doing cross
+ * compiling. Should not be used for dynamic compiling.
+ */
+ const char *kbuild_opts;
+ /*
+ * Default is false. If one of the above fields is set by user
+ * explicitly then user_set_llvm is set to true. This is used
+ * for perf test. If user doesn't set anything in .perfconfig
+ * and clang is not found, don't trigger llvm test.
+ */
+ bool user_set_param;
+};
+
+extern struct llvm_param llvm_param;
+extern int perf_llvm_config(const char *var, const char *value);
+
+extern int llvm__compile_bpf(const char *path, void **p_obj_buf,
+ size_t *p_obj_buf_sz);
+
+/* This function is for test__llvm() use only */
+extern int llvm__search_clang(void);
+#endif
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index f1a4c833121e..6309f7ceb08f 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -250,7 +250,7 @@ struct machine *machines__findnew(struct machines *machines, pid_t pid)
static struct strlist *seen;
if (!seen)
- seen = strlist__new(true, NULL);
+ seen = strlist__new(NULL, NULL);
if (!strlist__has_entry(seen, path)) {
pr_err("Can't access file %s\n", path);
@@ -550,6 +550,14 @@ int machine__process_itrace_start_event(struct machine *machine __maybe_unused,
return 0;
}
+int machine__process_switch_event(struct machine *machine __maybe_unused,
+ union perf_event *event)
+{
+ if (dump_trace)
+ perf_event__fprintf_switch(event, stdout);
+ return 0;
+}
+
struct map *machine__findnew_module_map(struct machine *machine, u64 start,
const char *filename)
{
@@ -1467,6 +1475,9 @@ int machine__process_event(struct machine *machine, union perf_event *event,
ret = machine__process_itrace_start_event(machine, event); break;
case PERF_RECORD_LOST_SAMPLES:
ret = machine__process_lost_samples_event(machine, event, sample); break;
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ ret = machine__process_switch_event(machine, event); break;
default:
ret = -1;
break;
@@ -2009,3 +2020,17 @@ struct dso *machine__findnew_dso(struct machine *machine, const char *filename)
{
return dsos__findnew(&machine->dsos, filename);
}
+
+char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp)
+{
+ struct machine *machine = vmachine;
+ struct map *map;
+ struct symbol *sym = map_groups__find_symbol(&machine->kmaps, MAP__FUNCTION, *addrp, &map, NULL);
+
+ if (sym == NULL)
+ return NULL;
+
+ *modp = __map__is_kmodule(map) ? (char *)map->dso->short_name : NULL;
+ *addrp = map->unmap_ip(map, sym->start);
+ return sym->name;
+}
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 887798e511e9..ea5cb4a621db 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -87,6 +87,8 @@ int machine__process_aux_event(struct machine *machine,
union perf_event *event);
int machine__process_itrace_start_event(struct machine *machine,
union perf_event *event);
+int machine__process_switch_event(struct machine *machine __maybe_unused,
+ union perf_event *event);
int machine__process_mmap_event(struct machine *machine, union perf_event *event,
struct perf_sample *sample);
int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
@@ -237,5 +239,9 @@ int machine__synthesize_threads(struct machine *machine, struct target *target,
pid_t machine__get_current_tid(struct machine *machine, int cpu);
int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
pid_t tid);
+/*
+ * For use with libtraceevent's pevent_set_function_resolver()
+ */
+char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
#endif /* __PERF_MACHINE_H */
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index b5a5e9c02437..b1c475d9b240 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -224,6 +224,20 @@ struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
return map;
}
+/*
+ * Use this and __map__is_kmodule() for map instances that are in
+ * machine->kmaps, and thus have map->groups->machine all properly set, to
+ * disambiguate between the kernel and modules.
+ *
+ * When the need arises, introduce map__is_{kernel,kmodule)() that
+ * checks (map->groups != NULL && map->groups->machine != NULL &&
+ * map->dso->kernel) before calling __map__is_{kernel,kmodule}())
+ */
+bool __map__is_kernel(const struct map *map)
+{
+ return map->groups->machine->vmlinux_maps[map->type] == map;
+}
+
static void map__exit(struct map *map)
{
BUG_ON(!RB_EMPTY_NODE(&map->rb_node));
@@ -334,9 +348,18 @@ struct symbol *map__find_symbol_by_name(struct map *map, const char *name,
return dso__find_symbol_by_name(map->dso, map->type, name);
}
-struct map *map__clone(struct map *map)
+struct map *map__clone(struct map *from)
{
- return memdup(map, sizeof(*map));
+ struct map *map = memdup(from, sizeof(*map));
+
+ if (map != NULL) {
+ atomic_set(&map->refcnt, 1);
+ RB_CLEAR_NODE(&map->rb_node);
+ dso__get(map->dso);
+ map->groups = NULL;
+ }
+
+ return map;
}
int map__overlap(struct map *l, struct map *r)
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index d73e687b224e..57829e89b78b 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -256,4 +256,11 @@ int map_groups__fixup_overlappings(struct map_groups *mg, struct map *map,
struct map *map_groups__find_by_name(struct map_groups *mg,
enum map_type type, const char *name);
+bool __map__is_kernel(const struct map *map);
+
+static inline bool __map__is_kmodule(const struct map *map)
+{
+ return !__map__is_kernel(map);
+}
+
#endif /* __PERF_MAP_H */
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index 52be201b9b25..b1b9e2385f4b 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -220,6 +220,9 @@ static int __ordered_events__flush(struct ordered_events *oe)
else if (last_ts <= limit)
oe->last = list_entry(head->prev, struct ordered_event, list);
+ if (show_progress)
+ ui_progress__finish();
+
return 0;
}
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 09f8d2357108..d826e6f515db 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -276,7 +276,8 @@ const char *event_type(int type)
static struct perf_evsel *
__add_event(struct list_head *list, int *idx,
struct perf_event_attr *attr,
- char *name, struct cpu_map *cpus)
+ char *name, struct cpu_map *cpus,
+ struct list_head *config_terms)
{
struct perf_evsel *evsel;
@@ -291,14 +292,19 @@ __add_event(struct list_head *list, int *idx,
if (name)
evsel->name = strdup(name);
+
+ if (config_terms)
+ list_splice(config_terms, &evsel->config_terms);
+
list_add_tail(&evsel->node, list);
return evsel;
}
static int add_event(struct list_head *list, int *idx,
- struct perf_event_attr *attr, char *name)
+ struct perf_event_attr *attr, char *name,
+ struct list_head *config_terms)
{
- return __add_event(list, idx, attr, name, NULL) ? 0 : -ENOMEM;
+ return __add_event(list, idx, attr, name, NULL, config_terms) ? 0 : -ENOMEM;
}
static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size)
@@ -377,7 +383,7 @@ int parse_events_add_cache(struct list_head *list, int *idx,
memset(&attr, 0, sizeof(attr));
attr.config = cache_type | (cache_op << 8) | (cache_result << 16);
attr.type = PERF_TYPE_HW_CACHE;
- return add_event(list, idx, &attr, name);
+ return add_event(list, idx, &attr, name, NULL);
}
static int add_tracepoint(struct list_head *list, int *idx,
@@ -539,7 +545,7 @@ int parse_events_add_breakpoint(struct list_head *list, int *idx,
attr.type = PERF_TYPE_BREAKPOINT;
attr.sample_period = 1;
- return add_event(list, idx, &attr, NULL);
+ return add_event(list, idx, &attr, NULL, NULL);
}
static int check_type_val(struct parse_events_term *term,
@@ -590,7 +596,9 @@ do { \
break;
case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
CHECK_TYPE_VAL(NUM);
- attr->sample_period = term->val.num;
+ break;
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
+ CHECK_TYPE_VAL(NUM);
break;
case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE:
/*
@@ -598,6 +606,20 @@ do { \
* attr->branch_sample_type = term->val.num;
*/
break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ CHECK_TYPE_VAL(NUM);
+ if (term->val.num > 1) {
+ err->str = strdup("expected 0 or 1");
+ err->idx = term->err_val;
+ return -EINVAL;
+ }
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
+ CHECK_TYPE_VAL(STR);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
+ CHECK_TYPE_VAL(NUM);
+ break;
case PARSE_EVENTS__TERM_TYPE_NAME:
CHECK_TYPE_VAL(STR);
break;
@@ -622,22 +644,71 @@ static int config_attr(struct perf_event_attr *attr,
return 0;
}
+static int get_config_terms(struct list_head *head_config,
+ struct list_head *head_terms __maybe_unused)
+{
+#define ADD_CONFIG_TERM(__type, __name, __val) \
+do { \
+ struct perf_evsel_config_term *__t; \
+ \
+ __t = zalloc(sizeof(*__t)); \
+ if (!__t) \
+ return -ENOMEM; \
+ \
+ INIT_LIST_HEAD(&__t->list); \
+ __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \
+ __t->val.__name = __val; \
+ list_add_tail(&__t->list, head_terms); \
+} while (0)
+
+ struct parse_events_term *term;
+
+ list_for_each_entry(term, head_config, list) {
+ switch (term->type_term) {
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD:
+ ADD_CONFIG_TERM(PERIOD, period, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ:
+ ADD_CONFIG_TERM(FREQ, freq, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_TIME:
+ ADD_CONFIG_TERM(TIME, time, term->val.num);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_CALLGRAPH:
+ ADD_CONFIG_TERM(CALLGRAPH, callgraph, term->val.str);
+ break;
+ case PARSE_EVENTS__TERM_TYPE_STACKSIZE:
+ ADD_CONFIG_TERM(STACK_USER, stack_user, term->val.num);
+ break;
+ default:
+ break;
+ }
+ }
+#undef ADD_EVSEL_CONFIG
+ return 0;
+}
+
int parse_events_add_numeric(struct parse_events_evlist *data,
struct list_head *list,
u32 type, u64 config,
struct list_head *head_config)
{
struct perf_event_attr attr;
+ LIST_HEAD(config_terms);
memset(&attr, 0, sizeof(attr));
attr.type = type;
attr.config = config;
- if (head_config &&
- config_attr(&attr, head_config, data->error))
- return -EINVAL;
+ if (head_config) {
+ if (config_attr(&attr, head_config, data->error))
+ return -EINVAL;
+
+ if (get_config_terms(head_config, &config_terms))
+ return -ENOMEM;
+ }
- return add_event(list, &data->idx, &attr, NULL);
+ return add_event(list, &data->idx, &attr, NULL, &config_terms);
}
static int parse_events__is_name_term(struct parse_events_term *term)
@@ -664,6 +735,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
struct perf_pmu_info info;
struct perf_pmu *pmu;
struct perf_evsel *evsel;
+ LIST_HEAD(config_terms);
pmu = perf_pmu__find(name);
if (!pmu)
@@ -678,7 +750,7 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
if (!head_config) {
attr.type = pmu->type;
- evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus);
+ evsel = __add_event(list, &data->idx, &attr, NULL, pmu->cpus, NULL);
return evsel ? 0 : -ENOMEM;
}
@@ -692,11 +764,15 @@ int parse_events_add_pmu(struct parse_events_evlist *data,
if (config_attr(&attr, head_config, data->error))
return -EINVAL;
+ if (get_config_terms(head_config, &config_terms))
+ return -ENOMEM;
+
if (perf_pmu__config(pmu, &attr, head_config, data->error))
return -EINVAL;
evsel = __add_event(list, &data->idx, &attr,
- pmu_event_name(head_config), pmu->cpus);
+ pmu_event_name(head_config), pmu->cpus,
+ &config_terms);
if (evsel) {
evsel->unit = info.unit;
evsel->scale = info.scale;
@@ -1065,8 +1141,13 @@ int parse_events(struct perf_evlist *evlist, const char *str,
perf_pmu__parse_cleanup();
if (!ret) {
int entries = data.idx - evlist->nr_entries;
+ struct perf_evsel *last;
+
perf_evlist__splice_list_tail(evlist, &data.list, entries);
evlist->nr_groups += data.nr_groups;
+ last = perf_evlist__last(evlist);
+ last->cmdline_group_boundary = true;
+
return 0;
}
@@ -1105,7 +1186,7 @@ static void parse_events_print_error(struct parse_events_error *err,
* Maximum error index indent, we will cut
* the event string if it's bigger.
*/
- int max_err_idx = 10;
+ int max_err_idx = 13;
/*
* Let's be specific with the message when
@@ -1162,30 +1243,93 @@ int parse_events_option(const struct option *opt, const char *str,
return ret;
}
-int parse_filter(const struct option *opt, const char *str,
- int unset __maybe_unused)
+static int
+foreach_evsel_in_last_glob(struct perf_evlist *evlist,
+ int (*func)(struct perf_evsel *evsel,
+ const void *arg),
+ const void *arg)
{
- struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
struct perf_evsel *last = NULL;
+ int err;
if (evlist->nr_entries > 0)
last = perf_evlist__last(evlist);
- if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
+ do {
+ err = (*func)(last, arg);
+ if (err)
+ return -1;
+ if (!last)
+ return 0;
+
+ if (last->node.prev == &evlist->entries)
+ return 0;
+ last = list_entry(last->node.prev, struct perf_evsel, node);
+ } while (!last->cmdline_group_boundary);
+
+ return 0;
+}
+
+static int set_filter(struct perf_evsel *evsel, const void *arg)
+{
+ const char *str = arg;
+
+ if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
fprintf(stderr,
"--filter option should follow a -e tracepoint option\n");
return -1;
}
- last->filter = strdup(str);
- if (last->filter == NULL) {
- fprintf(stderr, "not enough memory to hold filter string\n");
+ if (perf_evsel__append_filter(evsel, "&&", str) < 0) {
+ fprintf(stderr,
+ "not enough memory to hold filter string\n");
return -1;
}
return 0;
}
+int parse_filter(const struct option *opt, const char *str,
+ int unset __maybe_unused)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+
+ return foreach_evsel_in_last_glob(evlist, set_filter,
+ (const void *)str);
+}
+
+static int add_exclude_perf_filter(struct perf_evsel *evsel,
+ const void *arg __maybe_unused)
+{
+ char new_filter[64];
+
+ if (evsel == NULL || evsel->attr.type != PERF_TYPE_TRACEPOINT) {
+ fprintf(stderr,
+ "--exclude-perf option should follow a -e tracepoint option\n");
+ return -1;
+ }
+
+ snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid());
+
+ if (perf_evsel__append_filter(evsel, "&&", new_filter) < 0) {
+ fprintf(stderr,
+ "not enough memory to hold filter string\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+int exclude_perf(const struct option *opt,
+ const char *arg __maybe_unused,
+ int unset __maybe_unused)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+
+ return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter,
+ NULL);
+}
+
static const char * const event_type_descriptors[] = {
"Hardware event",
"Software event",
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 131f29b2f132..a09b0e210997 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -34,6 +34,7 @@ extern int parse_events(struct perf_evlist *evlist, const char *str,
struct parse_events_error *error);
extern int parse_events_terms(struct list_head *terms, const char *str);
extern int parse_filter(const struct option *opt, const char *str, int unset);
+extern int exclude_perf(const struct option *opt, const char *arg, int unset);
#define EVENTS_HELP_MAX (128*1024)
@@ -61,7 +62,11 @@ enum {
PARSE_EVENTS__TERM_TYPE_CONFIG2,
PARSE_EVENTS__TERM_TYPE_NAME,
PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD,
+ PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ,
PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE,
+ PARSE_EVENTS__TERM_TYPE_TIME,
+ PARSE_EVENTS__TERM_TYPE_CALLGRAPH,
+ PARSE_EVENTS__TERM_TYPE_STACKSIZE,
};
struct parse_events_term {
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 13cef3c65565..936d566f48d8 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -182,7 +182,11 @@ config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
+freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
+time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
+call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
+stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
, { return ','; }
"/" { BEGIN(INITIAL); return '/'; }
{name_minus} { return str(yyscanner, PE_NAME); }
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 7bcb8c315615..89c91a1a67e7 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -462,10 +462,6 @@ static struct perf_pmu *pmu_lookup(const char *name)
LIST_HEAD(aliases);
__u32 type;
- /* No support for intel_bts or intel_pt so disallow them */
- if (!strcmp(name, "intel_bts") || !strcmp(name, "intel_pt"))
- return NULL;
-
/*
* The pmu data we store & need consists of the pmu
* type value and format definitions. Load both right
@@ -542,7 +538,7 @@ struct perf_pmu *perf_pmu__find(const char *name)
}
static struct perf_pmu_format *
-pmu_find_format(struct list_head *formats, char *name)
+pmu_find_format(struct list_head *formats, const char *name)
{
struct perf_pmu_format *format;
@@ -553,6 +549,21 @@ pmu_find_format(struct list_head *formats, char *name)
return NULL;
}
+__u64 perf_pmu__format_bits(struct list_head *formats, const char *name)
+{
+ struct perf_pmu_format *format = pmu_find_format(formats, name);
+ __u64 bits = 0;
+ int fbit;
+
+ if (!format)
+ return 0;
+
+ for_each_set_bit(fbit, format->bits, PERF_PMU_FORMAT_BITS)
+ bits |= 1ULL << fbit;
+
+ return bits;
+}
+
/*
* Sets value based on the format definition (format parameter)
* and unformated value (value parameter).
@@ -574,6 +585,18 @@ static void pmu_format_value(unsigned long *format, __u64 value, __u64 *v,
}
}
+static __u64 pmu_format_max_value(const unsigned long *format)
+{
+ int w;
+
+ w = bitmap_weight(format, PERF_PMU_FORMAT_BITS);
+ if (!w)
+ return 0;
+ if (w < 64)
+ return (1ULL << w) - 1;
+ return -1;
+}
+
/*
* Term is a string term, and might be a param-term. Try to look up it's value
* in the remaining terms.
@@ -607,7 +630,9 @@ static char *formats_error_string(struct list_head *formats)
{
struct perf_pmu_format *format;
char *err, *str;
- static const char *static_terms = "config,config1,config2,name,period,branch_type\n";
+ static const char *static_terms = "config,config1,config2,name,"
+ "period,freq,branch_type,time,"
+ "call-graph,stack-size\n";
unsigned i = 0;
if (!asprintf(&str, "valid terms:"))
@@ -647,7 +672,7 @@ static int pmu_config_term(struct list_head *formats,
{
struct perf_pmu_format *format;
__u64 *vp;
- __u64 val;
+ __u64 val, max_val;
/*
* If this is a parameter we've already used for parameterized-eval,
@@ -713,6 +738,22 @@ static int pmu_config_term(struct list_head *formats,
} else
return -EINVAL;
+ max_val = pmu_format_max_value(format->bits);
+ if (val > max_val) {
+ if (err) {
+ err->idx = term->err_val;
+ if (asprintf(&err->str,
+ "value too big for format, maximum is %llu",
+ (unsigned long long)max_val) < 0)
+ err->str = strdup("value too big for format");
+ return -EINVAL;
+ }
+ /*
+ * Assume we don't care if !err, in which case the value will be
+ * silently truncated.
+ */
+ }
+
pmu_format_value(format->bits, val, vp, zero);
return 0;
}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 7b9c8cf8ae3e..5d7e84466bee 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -54,6 +54,7 @@ int perf_pmu__config_terms(struct list_head *formats,
struct perf_event_attr *attr,
struct list_head *head_terms,
bool zero, struct parse_events_error *error);
+__u64 perf_pmu__format_bits(struct list_head *formats, const char *name);
int perf_pmu__check_alias(struct perf_pmu *pmu, struct list_head *head_terms,
struct perf_pmu_info *info);
struct list_head *perf_pmu__alias(struct perf_pmu *pmu,
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 381f23a443c7..eb5f18b75402 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -45,6 +45,7 @@
#include "trace-event.h" /* For __maybe_unused */
#include "probe-event.h"
#include "probe-finder.h"
+#include "probe-file.h"
#include "session.h"
#define MAX_CMDLEN 256
@@ -55,11 +56,7 @@ struct probe_conf probe_conf;
#define semantic_error(msg ...) pr_err("Semantic error :" msg)
-/* If there is no space to write, returns -E2BIG. */
-static int e_snprintf(char *str, size_t size, const char *format, ...)
- __attribute__((format(printf, 3, 4)));
-
-static int e_snprintf(char *str, size_t size, const char *format, ...)
+int e_snprintf(char *str, size_t size, const char *format, ...)
{
int ret;
va_list ap;
@@ -72,7 +69,6 @@ static int e_snprintf(char *str, size_t size, const char *format, ...)
}
static char *synthesize_perf_probe_point(struct perf_probe_point *pp);
-static void clear_probe_trace_event(struct probe_trace_event *tev);
static struct machine *host_machine;
/* Initialize symbol maps and path of vmlinux/modules */
@@ -519,7 +515,7 @@ static int find_perf_probe_point_from_dwarf(struct probe_trace_point *tp,
if (ret < 0)
goto error;
addr += stext;
- } else {
+ } else if (tp->symbol) {
addr = kernel_get_symbol_address_by_name(tp->symbol, false);
if (addr == 0)
goto error;
@@ -709,9 +705,10 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
}
/* Error path : ntevs < 0 */
pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
- if (ntevs == -EBADF) {
- pr_warning("Warning: No dwarf info found in the vmlinux - "
- "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
+ if (ntevs < 0) {
+ if (ntevs == -EBADF)
+ pr_warning("Warning: No dwarf info found in the vmlinux - "
+ "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
if (!need_dwarf) {
pr_debug("Trying to use symbols.\n");
return 0;
@@ -1197,15 +1194,37 @@ static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
*ptr++ = '\0';
}
- tmp = strdup(arg);
- if (tmp == NULL)
- return -ENOMEM;
+ if (arg[0] == '\0')
+ tmp = NULL;
+ else {
+ tmp = strdup(arg);
+ if (tmp == NULL)
+ return -ENOMEM;
+ }
if (file_spec)
pp->file = tmp;
- else
+ else {
pp->function = tmp;
+ /*
+ * Keep pp->function even if this is absolute address,
+ * so it can mark whether abs_address is valid.
+ * Which make 'perf probe lib.bin 0x0' possible.
+ *
+ * Note that checking length of tmp is not needed
+ * because when we access tmp[1] we know tmp[0] is '0',
+ * so tmp[1] should always valid (but could be '\0').
+ */
+ if (tmp && !strncmp(tmp, "0x", 2)) {
+ pp->abs_address = strtoul(pp->function, &tmp, 0);
+ if (*tmp != '\0') {
+ semantic_error("Invalid absolute address.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
/* Parse other options */
while (ptr) {
arg = ptr;
@@ -1467,8 +1486,7 @@ bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
}
/* Parse probe_events event into struct probe_point */
-static int parse_probe_trace_command(const char *cmd,
- struct probe_trace_event *tev)
+int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev)
{
struct probe_trace_point *tp = &tev->point;
char pr;
@@ -1523,9 +1541,31 @@ static int parse_probe_trace_command(const char *cmd,
} else
p = argv[1];
fmt1_str = strtok_r(p, "+", &fmt);
- if (fmt1_str[0] == '0') /* only the address started with 0x */
- tp->address = strtoul(fmt1_str, NULL, 0);
- else {
+ /* only the address started with 0x */
+ if (fmt1_str[0] == '0') {
+ /*
+ * Fix a special case:
+ * if address == 0, kernel reports something like:
+ * p:probe_libc/abs_0 /lib/libc-2.18.so:0x (null) arg1=%ax
+ * Newer kernel may fix that, but we want to
+ * support old kernel also.
+ */
+ if (strcmp(fmt1_str, "0x") == 0) {
+ if (!argv[2] || strcmp(argv[2], "(null)")) {
+ ret = -EINVAL;
+ goto out;
+ }
+ tp->address = 0;
+
+ free(argv[2]);
+ for (i = 2; argv[i + 1] != NULL; i++)
+ argv[i] = argv[i + 1];
+
+ argv[i] = NULL;
+ argc -= 1;
+ } else
+ tp->address = strtoul(fmt1_str, NULL, 0);
+ } else {
/* Only the symbol-based probe has offset */
tp->symbol = strdup(fmt1_str);
if (tp->symbol == NULL) {
@@ -1782,14 +1822,29 @@ char *synthesize_probe_trace_command(struct probe_trace_event *tev)
if (len <= 0)
goto error;
- /* Uprobes must have tp->address and tp->module */
- if (tev->uprobes && (!tp->address || !tp->module))
+ /* Uprobes must have tp->module */
+ if (tev->uprobes && !tp->module)
goto error;
+ /*
+ * If tp->address == 0, then this point must be a
+ * absolute address uprobe.
+ * try_to_find_absolute_address() should have made
+ * tp->symbol to "0x0".
+ */
+ if (tev->uprobes && !tp->address) {
+ if (!tp->symbol || strcmp(tp->symbol, "0x0"))
+ goto error;
+ }
/* Use the tp->address for uprobes */
if (tev->uprobes)
ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s:0x%lx",
tp->module, tp->address);
+ else if (!strncmp(tp->symbol, "0x", 2))
+ /* Absolute address. See try_to_find_absolute_address() */
+ ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s%s0x%lx",
+ tp->module ?: "", tp->module ? ":" : "",
+ tp->address);
else
ret = e_snprintf(buf + len, MAX_CMDLEN - len, "%s%s%s+%lu",
tp->module ?: "", tp->module ? ":" : "",
@@ -1819,17 +1874,17 @@ static int find_perf_probe_point_from_map(struct probe_trace_point *tp,
{
struct symbol *sym = NULL;
struct map *map;
- u64 addr;
+ u64 addr = tp->address;
int ret = -ENOENT;
if (!is_kprobe) {
map = dso__new_map(tp->module);
if (!map)
goto out;
- addr = tp->address;
sym = map__find_symbol(map, addr, NULL);
} else {
- addr = kernel_get_symbol_address_by_name(tp->symbol, true);
+ if (tp->symbol)
+ addr = kernel_get_symbol_address_by_name(tp->symbol, true);
if (addr) {
addr += tp->offset;
sym = __find_kernel_function(addr, &map);
@@ -1852,8 +1907,8 @@ out:
}
static int convert_to_perf_probe_point(struct probe_trace_point *tp,
- struct perf_probe_point *pp,
- bool is_kprobe)
+ struct perf_probe_point *pp,
+ bool is_kprobe)
{
char buf[128];
int ret;
@@ -1870,7 +1925,7 @@ static int convert_to_perf_probe_point(struct probe_trace_point *tp,
if (tp->symbol) {
pp->function = strdup(tp->symbol);
pp->offset = tp->offset;
- } else if (!tp->module && !is_kprobe) {
+ } else {
ret = e_snprintf(buf, 128, "0x%" PRIx64, (u64)tp->address);
if (ret < 0)
return ret;
@@ -1951,7 +2006,7 @@ void clear_perf_probe_event(struct perf_probe_event *pev)
memset(pev, 0, sizeof(*pev));
}
-static void clear_probe_trace_event(struct probe_trace_event *tev)
+void clear_probe_trace_event(struct probe_trace_event *tev)
{
struct probe_trace_arg_ref *ref, *next;
int i;
@@ -1976,119 +2031,6 @@ static void clear_probe_trace_event(struct probe_trace_event *tev)
memset(tev, 0, sizeof(*tev));
}
-static void print_open_warning(int err, bool is_kprobe)
-{
- char sbuf[STRERR_BUFSIZE];
-
- if (err == -ENOENT) {
- const char *config;
-
- if (!is_kprobe)
- config = "CONFIG_UPROBE_EVENTS";
- else
- config = "CONFIG_KPROBE_EVENTS";
-
- pr_warning("%cprobe_events file does not exist"
- " - please rebuild kernel with %s.\n",
- is_kprobe ? 'k' : 'u', config);
- } else if (err == -ENOTSUP)
- pr_warning("Tracefs or debugfs is not mounted.\n");
- else
- pr_warning("Failed to open %cprobe_events: %s\n",
- is_kprobe ? 'k' : 'u',
- strerror_r(-err, sbuf, sizeof(sbuf)));
-}
-
-static void print_both_open_warning(int kerr, int uerr)
-{
- /* Both kprobes and uprobes are disabled, warn it. */
- if (kerr == -ENOTSUP && uerr == -ENOTSUP)
- pr_warning("Tracefs or debugfs is not mounted.\n");
- else if (kerr == -ENOENT && uerr == -ENOENT)
- pr_warning("Please rebuild kernel with CONFIG_KPROBE_EVENTS "
- "or/and CONFIG_UPROBE_EVENTS.\n");
- else {
- char sbuf[STRERR_BUFSIZE];
- pr_warning("Failed to open kprobe events: %s.\n",
- strerror_r(-kerr, sbuf, sizeof(sbuf)));
- pr_warning("Failed to open uprobe events: %s.\n",
- strerror_r(-uerr, sbuf, sizeof(sbuf)));
- }
-}
-
-static int open_probe_events(const char *trace_file, bool readwrite)
-{
- char buf[PATH_MAX];
- const char *__debugfs;
- const char *tracing_dir = "";
- int ret;
-
- __debugfs = tracefs_find_mountpoint();
- if (__debugfs == NULL) {
- tracing_dir = "tracing/";
-
- __debugfs = debugfs_find_mountpoint();
- if (__debugfs == NULL)
- return -ENOTSUP;
- }
-
- ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
- __debugfs, tracing_dir, trace_file);
- if (ret >= 0) {
- pr_debug("Opening %s write=%d\n", buf, readwrite);
- if (readwrite && !probe_event_dry_run)
- ret = open(buf, O_RDWR | O_APPEND, 0);
- else
- ret = open(buf, O_RDONLY, 0);
-
- if (ret < 0)
- ret = -errno;
- }
- return ret;
-}
-
-static int open_kprobe_events(bool readwrite)
-{
- return open_probe_events("kprobe_events", readwrite);
-}
-
-static int open_uprobe_events(bool readwrite)
-{
- return open_probe_events("uprobe_events", readwrite);
-}
-
-/* Get raw string list of current kprobe_events or uprobe_events */
-static struct strlist *get_probe_trace_command_rawlist(int fd)
-{
- int ret, idx;
- FILE *fp;
- char buf[MAX_CMDLEN];
- char *p;
- struct strlist *sl;
-
- sl = strlist__new(true, NULL);
-
- fp = fdopen(dup(fd), "r");
- while (!feof(fp)) {
- p = fgets(buf, MAX_CMDLEN, fp);
- if (!p)
- break;
-
- idx = strlen(p) - 1;
- if (p[idx] == '\n')
- p[idx] = '\0';
- ret = strlist__add(sl, buf);
- if (ret < 0) {
- pr_debug("strlist__add failed (%d)\n", ret);
- strlist__delete(sl);
- return NULL;
- }
- }
- fclose(fp);
-
- return sl;
-}
-
struct kprobe_blacklist_node {
struct list_head list;
unsigned long start;
@@ -2284,7 +2226,7 @@ static int __show_perf_probe_events(int fd, bool is_kprobe,
memset(&tev, 0, sizeof(tev));
memset(&pev, 0, sizeof(pev));
- rawlist = get_probe_trace_command_rawlist(fd);
+ rawlist = probe_file__get_rawlist(fd);
if (!rawlist)
return -ENOMEM;
@@ -2325,89 +2267,20 @@ int show_perf_probe_events(struct strfilter *filter)
if (ret < 0)
return ret;
- kp_fd = open_kprobe_events(false);
- if (kp_fd >= 0) {
- ret = __show_perf_probe_events(kp_fd, true, filter);
- close(kp_fd);
- if (ret < 0)
- goto out;
- }
-
- up_fd = open_uprobe_events(false);
- if (kp_fd < 0 && up_fd < 0) {
- print_both_open_warning(kp_fd, up_fd);
- ret = kp_fd;
- goto out;
- }
+ ret = probe_file__open_both(&kp_fd, &up_fd, 0);
+ if (ret < 0)
+ return ret;
- if (up_fd >= 0) {
+ if (kp_fd >= 0)
+ ret = __show_perf_probe_events(kp_fd, true, filter);
+ if (up_fd >= 0 && ret >= 0)
ret = __show_perf_probe_events(up_fd, false, filter);
+ if (kp_fd > 0)
+ close(kp_fd);
+ if (up_fd > 0)
close(up_fd);
- }
-out:
exit_symbol_maps();
- return ret;
-}
-/* Get current perf-probe event names */
-static struct strlist *get_probe_trace_event_names(int fd, bool include_group)
-{
- char buf[128];
- struct strlist *sl, *rawlist;
- struct str_node *ent;
- struct probe_trace_event tev;
- int ret = 0;
-
- memset(&tev, 0, sizeof(tev));
- rawlist = get_probe_trace_command_rawlist(fd);
- if (!rawlist)
- return NULL;
- sl = strlist__new(true, NULL);
- strlist__for_each(ent, rawlist) {
- ret = parse_probe_trace_command(ent->s, &tev);
- if (ret < 0)
- break;
- if (include_group) {
- ret = e_snprintf(buf, 128, "%s:%s", tev.group,
- tev.event);
- if (ret >= 0)
- ret = strlist__add(sl, buf);
- } else
- ret = strlist__add(sl, tev.event);
- clear_probe_trace_event(&tev);
- if (ret < 0)
- break;
- }
- strlist__delete(rawlist);
-
- if (ret < 0) {
- strlist__delete(sl);
- return NULL;
- }
- return sl;
-}
-
-static int write_probe_trace_event(int fd, struct probe_trace_event *tev)
-{
- int ret = 0;
- char *buf = synthesize_probe_trace_command(tev);
- char sbuf[STRERR_BUFSIZE];
-
- if (!buf) {
- pr_debug("Failed to synthesize probe trace event.\n");
- return -EINVAL;
- }
-
- pr_debug("Writing event: %s\n", buf);
- if (!probe_event_dry_run) {
- ret = write(fd, buf, strlen(buf));
- if (ret <= 0) {
- ret = -errno;
- pr_warning("Failed to write event: %s\n",
- strerror_r(errno, sbuf, sizeof(sbuf)));
- }
- }
- free(buf);
return ret;
}
@@ -2478,36 +2351,69 @@ out:
free(buf);
}
+/* Set new name from original perf_probe_event and namelist */
+static int probe_trace_event__set_name(struct probe_trace_event *tev,
+ struct perf_probe_event *pev,
+ struct strlist *namelist,
+ bool allow_suffix)
+{
+ const char *event, *group;
+ char buf[64];
+ int ret;
+
+ if (pev->event)
+ event = pev->event;
+ else
+ if (pev->point.function &&
+ (strncmp(pev->point.function, "0x", 2) != 0) &&
+ !strisglob(pev->point.function))
+ event = pev->point.function;
+ else
+ event = tev->point.realname;
+ if (pev->group)
+ group = pev->group;
+ else
+ group = PERFPROBE_GROUP;
+
+ /* Get an unused new event name */
+ ret = get_new_event_name(buf, 64, event,
+ namelist, allow_suffix);
+ if (ret < 0)
+ return ret;
+
+ event = buf;
+
+ tev->event = strdup(event);
+ tev->group = strdup(group);
+ if (tev->event == NULL || tev->group == NULL)
+ return -ENOMEM;
+
+ /* Add added event name to namelist */
+ strlist__add(namelist, event);
+ return 0;
+}
+
static int __add_probe_trace_events(struct perf_probe_event *pev,
struct probe_trace_event *tevs,
int ntevs, bool allow_suffix)
{
int i, fd, ret;
struct probe_trace_event *tev = NULL;
- char buf[64];
const char *event = NULL, *group = NULL;
struct strlist *namelist;
- bool safename;
-
- if (pev->uprobes)
- fd = open_uprobe_events(true);
- else
- fd = open_kprobe_events(true);
- if (fd < 0) {
- print_open_warning(fd, !pev->uprobes);
+ fd = probe_file__open(PF_FL_RW | (pev->uprobes ? PF_FL_UPROBE : 0));
+ if (fd < 0)
return fd;
- }
/* Get current event names */
- namelist = get_probe_trace_event_names(fd, false);
+ namelist = probe_file__get_namelist(fd);
if (!namelist) {
pr_debug("Failed to get current event list.\n");
ret = -ENOMEM;
goto close_out;
}
- safename = (pev->point.function && !strisglob(pev->point.function));
ret = 0;
pr_info("Added new event%s\n", (ntevs > 1) ? "s:" : ":");
for (i = 0; i < ntevs; i++) {
@@ -2516,36 +2422,15 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
if (!tev->point.symbol)
continue;
- if (pev->event)
- event = pev->event;
- else
- if (safename)
- event = pev->point.function;
- else
- event = tev->point.realname;
- if (pev->group)
- group = pev->group;
- else
- group = PERFPROBE_GROUP;
-
- /* Get an unused new event name */
- ret = get_new_event_name(buf, 64, event,
- namelist, allow_suffix);
+ /* Set new name for tev (and update namelist) */
+ ret = probe_trace_event__set_name(tev, pev, namelist,
+ allow_suffix);
if (ret < 0)
break;
- event = buf;
- tev->event = strdup(event);
- tev->group = strdup(group);
- if (tev->event == NULL || tev->group == NULL) {
- ret = -ENOMEM;
- break;
- }
- ret = write_probe_trace_event(fd, tev);
+ ret = probe_file__add_event(fd, tev);
if (ret < 0)
break;
- /* Add added event name to namelist */
- strlist__add(namelist, event);
/* We use tev's name for showing new events */
show_perf_probe_event(tev->group, tev->event, pev,
@@ -2748,6 +2633,98 @@ err_out:
goto out;
}
+static int try_to_find_absolute_address(struct perf_probe_event *pev,
+ struct probe_trace_event **tevs)
+{
+ struct perf_probe_point *pp = &pev->point;
+ struct probe_trace_event *tev;
+ struct probe_trace_point *tp;
+ int i, err;
+
+ if (!(pev->point.function && !strncmp(pev->point.function, "0x", 2)))
+ return -EINVAL;
+ if (perf_probe_event_need_dwarf(pev))
+ return -EINVAL;
+
+ /*
+ * This is 'perf probe /lib/libc.so 0xabcd'. Try to probe at
+ * absolute address.
+ *
+ * Only one tev can be generated by this.
+ */
+ *tevs = zalloc(sizeof(*tev));
+ if (!*tevs)
+ return -ENOMEM;
+
+ tev = *tevs;
+ tp = &tev->point;
+
+ /*
+ * Don't use tp->offset, use address directly, because
+ * in synthesize_probe_trace_command() address cannot be
+ * zero.
+ */
+ tp->address = pev->point.abs_address;
+ tp->retprobe = pp->retprobe;
+ tev->uprobes = pev->uprobes;
+
+ err = -ENOMEM;
+ /*
+ * Give it a '0x' leading symbol name.
+ * In __add_probe_trace_events, a NULL symbol is interpreted as
+ * invalud.
+ */
+ if (asprintf(&tp->symbol, "0x%lx", tp->address) < 0)
+ goto errout;
+
+ /* For kprobe, check range */
+ if ((!tev->uprobes) &&
+ (kprobe_warn_out_range(tev->point.symbol,
+ tev->point.address))) {
+ err = -EACCES;
+ goto errout;
+ }
+
+ if (asprintf(&tp->realname, "abs_%lx", tp->address) < 0)
+ goto errout;
+
+ if (pev->target) {
+ tp->module = strdup(pev->target);
+ if (!tp->module)
+ goto errout;
+ }
+
+ if (tev->group) {
+ tev->group = strdup(pev->group);
+ if (!tev->group)
+ goto errout;
+ }
+
+ if (pev->event) {
+ tev->event = strdup(pev->event);
+ if (!tev->event)
+ goto errout;
+ }
+
+ tev->nargs = pev->nargs;
+ tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
+ if (!tev->args) {
+ err = -ENOMEM;
+ goto errout;
+ }
+ for (i = 0; i < tev->nargs; i++)
+ copy_to_probe_trace_arg(&tev->args[i], &pev->args[i]);
+
+ return 1;
+
+errout:
+ if (*tevs) {
+ clear_probe_trace_events(*tevs, 1);
+ *tevs = NULL;
+ }
+ return err;
+}
+
bool __weak arch__prefers_symtab(void) { return false; }
static int convert_to_probe_trace_events(struct perf_probe_event *pev,
@@ -2764,6 +2741,10 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
}
}
+ ret = try_to_find_absolute_address(pev, tevs);
+ if (ret > 0)
+ return ret;
+
if (arch__prefers_symtab() && !perf_probe_event_need_dwarf(pev)) {
ret = find_probe_trace_events_from_map(pev, tevs);
if (ret > 0)
@@ -2838,68 +2819,9 @@ end:
return ret;
}
-static int __del_trace_probe_event(int fd, struct str_node *ent)
-{
- char *p;
- char buf[128];
- int ret;
-
- /* Convert from perf-probe event to trace-probe event */
- ret = e_snprintf(buf, 128, "-:%s", ent->s);
- if (ret < 0)
- goto error;
-
- p = strchr(buf + 2, ':');
- if (!p) {
- pr_debug("Internal error: %s should have ':' but not.\n",
- ent->s);
- ret = -ENOTSUP;
- goto error;
- }
- *p = '/';
-
- pr_debug("Writing event: %s\n", buf);
- ret = write(fd, buf, strlen(buf));
- if (ret < 0) {
- ret = -errno;
- goto error;
- }
-
- pr_info("Removed event: %s\n", ent->s);
- return 0;
-error:
- pr_warning("Failed to delete event: %s\n",
- strerror_r(-ret, buf, sizeof(buf)));
- return ret;
-}
-
-static int del_trace_probe_events(int fd, struct strfilter *filter,
- struct strlist *namelist)
-{
- struct str_node *ent;
- const char *p;
- int ret = -ENOENT;
-
- if (!namelist)
- return -ENOENT;
-
- strlist__for_each(ent, namelist) {
- p = strchr(ent->s, ':');
- if ((p && strfilter__compare(filter, p + 1)) ||
- strfilter__compare(filter, ent->s)) {
- ret = __del_trace_probe_event(fd, ent);
- if (ret < 0)
- break;
- }
- }
-
- return ret;
-}
-
int del_perf_probe_events(struct strfilter *filter)
{
int ret, ret2, ufd = -1, kfd = -1;
- struct strlist *namelist = NULL, *unamelist = NULL;
char *str = strfilter__string(filter);
if (!str)
@@ -2908,25 +2830,15 @@ int del_perf_probe_events(struct strfilter *filter)
pr_debug("Delete filter: \'%s\'\n", str);
/* Get current event names */
- kfd = open_kprobe_events(true);
- if (kfd >= 0)
- namelist = get_probe_trace_event_names(kfd, true);
-
- ufd = open_uprobe_events(true);
- if (ufd >= 0)
- unamelist = get_probe_trace_event_names(ufd, true);
-
- if (kfd < 0 && ufd < 0) {
- print_both_open_warning(kfd, ufd);
- ret = kfd;
- goto error;
- }
+ ret = probe_file__open_both(&kfd, &ufd, PF_FL_RW);
+ if (ret < 0)
+ goto out;
- ret = del_trace_probe_events(kfd, filter, namelist);
+ ret = probe_file__del_events(kfd, filter);
if (ret < 0 && ret != -ENOENT)
goto error;
- ret2 = del_trace_probe_events(ufd, filter, unamelist);
+ ret2 = probe_file__del_events(ufd, filter);
if (ret2 < 0 && ret2 != -ENOENT) {
ret = ret2;
goto error;
@@ -2937,15 +2849,11 @@ int del_perf_probe_events(struct strfilter *filter)
ret = 0;
error:
- if (kfd >= 0) {
- strlist__delete(namelist);
+ if (kfd >= 0)
close(kfd);
- }
-
- if (ufd >= 0) {
- strlist__delete(unamelist);
+ if (ufd >= 0)
close(ufd);
- }
+out:
free(str);
return ret;
@@ -3007,3 +2915,22 @@ end:
return ret;
}
+int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
+ struct perf_probe_arg *pvar)
+{
+ tvar->value = strdup(pvar->var);
+ if (tvar->value == NULL)
+ return -ENOMEM;
+ if (pvar->type) {
+ tvar->type = strdup(pvar->type);
+ if (tvar->type == NULL)
+ return -ENOMEM;
+ }
+ if (pvar->name) {
+ tvar->name = strdup(pvar->name);
+ if (tvar->name == NULL)
+ return -ENOMEM;
+ } else
+ tvar->name = NULL;
+ return 0;
+}
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 31db6ee7db54..6e7ec68a4aa8 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -59,6 +59,7 @@ struct perf_probe_point {
bool retprobe; /* Return probe flag */
char *lazy_line; /* Lazy matching pattern */
unsigned long offset; /* Offset from function entry */
+ unsigned long abs_address; /* Absolute address of the point */
};
/* Perf probe probing argument field chain */
@@ -106,9 +107,13 @@ struct variable_list {
struct strlist *vars; /* Available variables */
};
+struct map;
+
/* Command string to events */
extern int parse_perf_probe_command(const char *cmd,
struct perf_probe_event *pev);
+extern int parse_probe_trace_command(const char *cmd,
+ struct probe_trace_event *tev);
/* Events to command string */
extern char *synthesize_perf_probe_command(struct perf_probe_event *pev);
@@ -121,6 +126,7 @@ extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
/* Release event contents */
extern void clear_perf_probe_event(struct perf_probe_event *pev);
+extern void clear_probe_trace_event(struct probe_trace_event *tev);
/* Command string to line-range */
extern int parse_line_range_desc(const char *cmd, struct line_range *lr);
@@ -144,7 +150,14 @@ bool arch__prefers_symtab(void);
void arch__fix_tev_from_maps(struct perf_probe_event *pev,
struct probe_trace_event *tev, struct map *map);
+/* If there is no space to write, returns -E2BIG. */
+int e_snprintf(char *str, size_t size, const char *format, ...)
+ __attribute__((format(printf, 3, 4)));
+
/* Maximum index number of event-name postfix */
#define MAX_EVENT_INDEX 1024
+int copy_to_probe_trace_arg(struct probe_trace_arg *tvar,
+ struct perf_probe_arg *pvar);
+
#endif /*_PROBE_EVENT_H */
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
new file mode 100644
index 000000000000..bbb243717ec8
--- /dev/null
+++ b/tools/perf/util/probe-file.c
@@ -0,0 +1,301 @@
+/*
+ * probe-file.c : operate ftrace k/uprobe events files
+ *
+ * Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+#include "util.h"
+#include "event.h"
+#include "strlist.h"
+#include "debug.h"
+#include "cache.h"
+#include "color.h"
+#include "symbol.h"
+#include "thread.h"
+#include <api/fs/debugfs.h>
+#include <api/fs/tracefs.h>
+#include "probe-event.h"
+#include "probe-file.h"
+#include "session.h"
+
+#define MAX_CMDLEN 256
+
+static void print_open_warning(int err, bool uprobe)
+{
+ char sbuf[STRERR_BUFSIZE];
+
+ if (err == -ENOENT) {
+ const char *config;
+
+ if (uprobe)
+ config = "CONFIG_UPROBE_EVENTS";
+ else
+ config = "CONFIG_KPROBE_EVENTS";
+
+ pr_warning("%cprobe_events file does not exist"
+ " - please rebuild kernel with %s.\n",
+ uprobe ? 'u' : 'k', config);
+ } else if (err == -ENOTSUP)
+ pr_warning("Tracefs or debugfs is not mounted.\n");
+ else
+ pr_warning("Failed to open %cprobe_events: %s\n",
+ uprobe ? 'u' : 'k',
+ strerror_r(-err, sbuf, sizeof(sbuf)));
+}
+
+static void print_both_open_warning(int kerr, int uerr)
+{
+ /* Both kprobes and uprobes are disabled, warn it. */
+ if (kerr == -ENOTSUP && uerr == -ENOTSUP)
+ pr_warning("Tracefs or debugfs is not mounted.\n");
+ else if (kerr == -ENOENT && uerr == -ENOENT)
+ pr_warning("Please rebuild kernel with CONFIG_KPROBE_EVENTS "
+ "or/and CONFIG_UPROBE_EVENTS.\n");
+ else {
+ char sbuf[STRERR_BUFSIZE];
+ pr_warning("Failed to open kprobe events: %s.\n",
+ strerror_r(-kerr, sbuf, sizeof(sbuf)));
+ pr_warning("Failed to open uprobe events: %s.\n",
+ strerror_r(-uerr, sbuf, sizeof(sbuf)));
+ }
+}
+
+static int open_probe_events(const char *trace_file, bool readwrite)
+{
+ char buf[PATH_MAX];
+ const char *__debugfs;
+ const char *tracing_dir = "";
+ int ret;
+
+ __debugfs = tracefs_find_mountpoint();
+ if (__debugfs == NULL) {
+ tracing_dir = "tracing/";
+
+ __debugfs = debugfs_find_mountpoint();
+ if (__debugfs == NULL)
+ return -ENOTSUP;
+ }
+
+ ret = e_snprintf(buf, PATH_MAX, "%s/%s%s",
+ __debugfs, tracing_dir, trace_file);
+ if (ret >= 0) {
+ pr_debug("Opening %s write=%d\n", buf, readwrite);
+ if (readwrite && !probe_event_dry_run)
+ ret = open(buf, O_RDWR | O_APPEND, 0);
+ else
+ ret = open(buf, O_RDONLY, 0);
+
+ if (ret < 0)
+ ret = -errno;
+ }
+ return ret;
+}
+
+static int open_kprobe_events(bool readwrite)
+{
+ return open_probe_events("kprobe_events", readwrite);
+}
+
+static int open_uprobe_events(bool readwrite)
+{
+ return open_probe_events("uprobe_events", readwrite);
+}
+
+int probe_file__open(int flag)
+{
+ int fd;
+
+ if (flag & PF_FL_UPROBE)
+ fd = open_uprobe_events(flag & PF_FL_RW);
+ else
+ fd = open_kprobe_events(flag & PF_FL_RW);
+ if (fd < 0)
+ print_open_warning(fd, flag & PF_FL_UPROBE);
+
+ return fd;
+}
+
+int probe_file__open_both(int *kfd, int *ufd, int flag)
+{
+ if (!kfd || !ufd)
+ return -EINVAL;
+
+ *kfd = open_kprobe_events(flag & PF_FL_RW);
+ *ufd = open_uprobe_events(flag & PF_FL_RW);
+ if (*kfd < 0 && *ufd < 0) {
+ print_both_open_warning(*kfd, *ufd);
+ return *kfd;
+ }
+
+ return 0;
+}
+
+/* Get raw string list of current kprobe_events or uprobe_events */
+struct strlist *probe_file__get_rawlist(int fd)
+{
+ int ret, idx;
+ FILE *fp;
+ char buf[MAX_CMDLEN];
+ char *p;
+ struct strlist *sl;
+
+ sl = strlist__new(NULL, NULL);
+
+ fp = fdopen(dup(fd), "r");
+ while (!feof(fp)) {
+ p = fgets(buf, MAX_CMDLEN, fp);
+ if (!p)
+ break;
+
+ idx = strlen(p) - 1;
+ if (p[idx] == '\n')
+ p[idx] = '\0';
+ ret = strlist__add(sl, buf);
+ if (ret < 0) {
+ pr_debug("strlist__add failed (%d)\n", ret);
+ strlist__delete(sl);
+ return NULL;
+ }
+ }
+ fclose(fp);
+
+ return sl;
+}
+
+static struct strlist *__probe_file__get_namelist(int fd, bool include_group)
+{
+ char buf[128];
+ struct strlist *sl, *rawlist;
+ struct str_node *ent;
+ struct probe_trace_event tev;
+ int ret = 0;
+
+ memset(&tev, 0, sizeof(tev));
+ rawlist = probe_file__get_rawlist(fd);
+ if (!rawlist)
+ return NULL;
+ sl = strlist__new(NULL, NULL);
+ strlist__for_each(ent, rawlist) {
+ ret = parse_probe_trace_command(ent->s, &tev);
+ if (ret < 0)
+ break;
+ if (include_group) {
+ ret = e_snprintf(buf, 128, "%s:%s", tev.group,
+ tev.event);
+ if (ret >= 0)
+ ret = strlist__add(sl, buf);
+ } else
+ ret = strlist__add(sl, tev.event);
+ clear_probe_trace_event(&tev);
+ if (ret < 0)
+ break;
+ }
+ strlist__delete(rawlist);
+
+ if (ret < 0) {
+ strlist__delete(sl);
+ return NULL;
+ }
+ return sl;
+}
+
+/* Get current perf-probe event names */
+struct strlist *probe_file__get_namelist(int fd)
+{
+ return __probe_file__get_namelist(fd, false);
+}
+
+int probe_file__add_event(int fd, struct probe_trace_event *tev)
+{
+ int ret = 0;
+ char *buf = synthesize_probe_trace_command(tev);
+ char sbuf[STRERR_BUFSIZE];
+
+ if (!buf) {
+ pr_debug("Failed to synthesize probe trace event.\n");
+ return -EINVAL;
+ }
+
+ pr_debug("Writing event: %s\n", buf);
+ if (!probe_event_dry_run) {
+ ret = write(fd, buf, strlen(buf));
+ if (ret <= 0) {
+ ret = -errno;
+ pr_warning("Failed to write event: %s\n",
+ strerror_r(errno, sbuf, sizeof(sbuf)));
+ }
+ }
+ free(buf);
+
+ return ret;
+}
+
+static int __del_trace_probe_event(int fd, struct str_node *ent)
+{
+ char *p;
+ char buf[128];
+ int ret;
+
+ /* Convert from perf-probe event to trace-probe event */
+ ret = e_snprintf(buf, 128, "-:%s", ent->s);
+ if (ret < 0)
+ goto error;
+
+ p = strchr(buf + 2, ':');
+ if (!p) {
+ pr_debug("Internal error: %s should have ':' but not.\n",
+ ent->s);
+ ret = -ENOTSUP;
+ goto error;
+ }
+ *p = '/';
+
+ pr_debug("Writing event: %s\n", buf);
+ ret = write(fd, buf, strlen(buf));
+ if (ret < 0) {
+ ret = -errno;
+ goto error;
+ }
+
+ pr_info("Removed event: %s\n", ent->s);
+ return 0;
+error:
+ pr_warning("Failed to delete event: %s\n",
+ strerror_r(-ret, buf, sizeof(buf)));
+ return ret;
+}
+
+int probe_file__del_events(int fd, struct strfilter *filter)
+{
+ struct strlist *namelist;
+ struct str_node *ent;
+ const char *p;
+ int ret = -ENOENT;
+
+ namelist = __probe_file__get_namelist(fd, true);
+ if (!namelist)
+ return -ENOENT;
+
+ strlist__for_each(ent, namelist) {
+ p = strchr(ent->s, ':');
+ if ((p && strfilter__compare(filter, p + 1)) ||
+ strfilter__compare(filter, ent->s)) {
+ ret = __del_trace_probe_event(fd, ent);
+ if (ret < 0)
+ break;
+ }
+ }
+ strlist__delete(namelist);
+
+ return ret;
+}
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
new file mode 100644
index 000000000000..ada94a242a17
--- /dev/null
+++ b/tools/perf/util/probe-file.h
@@ -0,0 +1,18 @@
+#ifndef __PROBE_FILE_H
+#define __PROBE_FILE_H
+
+#include "strlist.h"
+#include "strfilter.h"
+#include "probe-event.h"
+
+#define PF_FL_UPROBE 1
+#define PF_FL_RW 2
+
+int probe_file__open(int flag);
+int probe_file__open_both(int *kfd, int *ufd, int flag);
+struct strlist *probe_file__get_namelist(int fd);
+struct strlist *probe_file__get_rawlist(int fd);
+int probe_file__add_event(int fd, struct probe_trace_event *tev);
+int probe_file__del_events(int fd, struct strfilter *filter);
+
+#endif
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 2da65a710893..29c43c0680a8 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -553,24 +553,9 @@ static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)
char buf[32], *ptr;
int ret = 0;
- if (!is_c_varname(pf->pvar->var)) {
- /* Copy raw parameters */
- pf->tvar->value = strdup(pf->pvar->var);
- if (pf->tvar->value == NULL)
- return -ENOMEM;
- if (pf->pvar->type) {
- pf->tvar->type = strdup(pf->pvar->type);
- if (pf->tvar->type == NULL)
- return -ENOMEM;
- }
- if (pf->pvar->name) {
- pf->tvar->name = strdup(pf->pvar->name);
- if (pf->tvar->name == NULL)
- return -ENOMEM;
- } else
- pf->tvar->name = NULL;
- return 0;
- }
+ /* Copy raw parameters */
+ if (!is_c_varname(pf->pvar->var))
+ return copy_to_probe_trace_arg(pf->tvar, pf->pvar);
if (pf->pvar->name)
pf->tvar->name = strdup(pf->pvar->name);
@@ -1355,7 +1340,7 @@ static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf)
vl->point.offset);
/* Find local variables */
- vl->vars = strlist__new(true, NULL);
+ vl->vars = strlist__new(NULL, NULL);
if (vl->vars == NULL)
return -ENOMEM;
af->child = true;
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index 0766d98c5da5..51be28b1bca2 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -16,7 +16,7 @@ util/util.c
util/xyarray.c
util/cgroup.c
util/rblist.c
-util/stat.c
+util/counts.c
util/strlist.c
util/trace-event.c
../lib/rbtree.c
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 626422eda727..6324fe6b161e 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -941,76 +941,84 @@ static int pyrf_evlist__setup_types(void)
return PyType_Ready(&pyrf_evlist__type);
}
+#define PERF_CONST(name) { #name, PERF_##name }
+
static struct {
const char *name;
int value;
} perf__constants[] = {
- { "TYPE_HARDWARE", PERF_TYPE_HARDWARE },
- { "TYPE_SOFTWARE", PERF_TYPE_SOFTWARE },
- { "TYPE_TRACEPOINT", PERF_TYPE_TRACEPOINT },
- { "TYPE_HW_CACHE", PERF_TYPE_HW_CACHE },
- { "TYPE_RAW", PERF_TYPE_RAW },
- { "TYPE_BREAKPOINT", PERF_TYPE_BREAKPOINT },
-
- { "COUNT_HW_CPU_CYCLES", PERF_COUNT_HW_CPU_CYCLES },
- { "COUNT_HW_INSTRUCTIONS", PERF_COUNT_HW_INSTRUCTIONS },
- { "COUNT_HW_CACHE_REFERENCES", PERF_COUNT_HW_CACHE_REFERENCES },
- { "COUNT_HW_CACHE_MISSES", PERF_COUNT_HW_CACHE_MISSES },
- { "COUNT_HW_BRANCH_INSTRUCTIONS", PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
- { "COUNT_HW_BRANCH_MISSES", PERF_COUNT_HW_BRANCH_MISSES },
- { "COUNT_HW_BUS_CYCLES", PERF_COUNT_HW_BUS_CYCLES },
- { "COUNT_HW_CACHE_L1D", PERF_COUNT_HW_CACHE_L1D },
- { "COUNT_HW_CACHE_L1I", PERF_COUNT_HW_CACHE_L1I },
- { "COUNT_HW_CACHE_LL", PERF_COUNT_HW_CACHE_LL },
- { "COUNT_HW_CACHE_DTLB", PERF_COUNT_HW_CACHE_DTLB },
- { "COUNT_HW_CACHE_ITLB", PERF_COUNT_HW_CACHE_ITLB },
- { "COUNT_HW_CACHE_BPU", PERF_COUNT_HW_CACHE_BPU },
- { "COUNT_HW_CACHE_OP_READ", PERF_COUNT_HW_CACHE_OP_READ },
- { "COUNT_HW_CACHE_OP_WRITE", PERF_COUNT_HW_CACHE_OP_WRITE },
- { "COUNT_HW_CACHE_OP_PREFETCH", PERF_COUNT_HW_CACHE_OP_PREFETCH },
- { "COUNT_HW_CACHE_RESULT_ACCESS", PERF_COUNT_HW_CACHE_RESULT_ACCESS },
- { "COUNT_HW_CACHE_RESULT_MISS", PERF_COUNT_HW_CACHE_RESULT_MISS },
-
- { "COUNT_HW_STALLED_CYCLES_FRONTEND", PERF_COUNT_HW_STALLED_CYCLES_FRONTEND },
- { "COUNT_HW_STALLED_CYCLES_BACKEND", PERF_COUNT_HW_STALLED_CYCLES_BACKEND },
-
- { "COUNT_SW_CPU_CLOCK", PERF_COUNT_SW_CPU_CLOCK },
- { "COUNT_SW_TASK_CLOCK", PERF_COUNT_SW_TASK_CLOCK },
- { "COUNT_SW_PAGE_FAULTS", PERF_COUNT_SW_PAGE_FAULTS },
- { "COUNT_SW_CONTEXT_SWITCHES", PERF_COUNT_SW_CONTEXT_SWITCHES },
- { "COUNT_SW_CPU_MIGRATIONS", PERF_COUNT_SW_CPU_MIGRATIONS },
- { "COUNT_SW_PAGE_FAULTS_MIN", PERF_COUNT_SW_PAGE_FAULTS_MIN },
- { "COUNT_SW_PAGE_FAULTS_MAJ", PERF_COUNT_SW_PAGE_FAULTS_MAJ },
- { "COUNT_SW_ALIGNMENT_FAULTS", PERF_COUNT_SW_ALIGNMENT_FAULTS },
- { "COUNT_SW_EMULATION_FAULTS", PERF_COUNT_SW_EMULATION_FAULTS },
- { "COUNT_SW_DUMMY", PERF_COUNT_SW_DUMMY },
-
- { "SAMPLE_IP", PERF_SAMPLE_IP },
- { "SAMPLE_TID", PERF_SAMPLE_TID },
- { "SAMPLE_TIME", PERF_SAMPLE_TIME },
- { "SAMPLE_ADDR", PERF_SAMPLE_ADDR },
- { "SAMPLE_READ", PERF_SAMPLE_READ },
- { "SAMPLE_CALLCHAIN", PERF_SAMPLE_CALLCHAIN },
- { "SAMPLE_ID", PERF_SAMPLE_ID },
- { "SAMPLE_CPU", PERF_SAMPLE_CPU },
- { "SAMPLE_PERIOD", PERF_SAMPLE_PERIOD },
- { "SAMPLE_STREAM_ID", PERF_SAMPLE_STREAM_ID },
- { "SAMPLE_RAW", PERF_SAMPLE_RAW },
-
- { "FORMAT_TOTAL_TIME_ENABLED", PERF_FORMAT_TOTAL_TIME_ENABLED },
- { "FORMAT_TOTAL_TIME_RUNNING", PERF_FORMAT_TOTAL_TIME_RUNNING },
- { "FORMAT_ID", PERF_FORMAT_ID },
- { "FORMAT_GROUP", PERF_FORMAT_GROUP },
-
- { "RECORD_MMAP", PERF_RECORD_MMAP },
- { "RECORD_LOST", PERF_RECORD_LOST },
- { "RECORD_COMM", PERF_RECORD_COMM },
- { "RECORD_EXIT", PERF_RECORD_EXIT },
- { "RECORD_THROTTLE", PERF_RECORD_THROTTLE },
- { "RECORD_UNTHROTTLE", PERF_RECORD_UNTHROTTLE },
- { "RECORD_FORK", PERF_RECORD_FORK },
- { "RECORD_READ", PERF_RECORD_READ },
- { "RECORD_SAMPLE", PERF_RECORD_SAMPLE },
+ PERF_CONST(TYPE_HARDWARE),
+ PERF_CONST(TYPE_SOFTWARE),
+ PERF_CONST(TYPE_TRACEPOINT),
+ PERF_CONST(TYPE_HW_CACHE),
+ PERF_CONST(TYPE_RAW),
+ PERF_CONST(TYPE_BREAKPOINT),
+
+ PERF_CONST(COUNT_HW_CPU_CYCLES),
+ PERF_CONST(COUNT_HW_INSTRUCTIONS),
+ PERF_CONST(COUNT_HW_CACHE_REFERENCES),
+ PERF_CONST(COUNT_HW_CACHE_MISSES),
+ PERF_CONST(COUNT_HW_BRANCH_INSTRUCTIONS),
+ PERF_CONST(COUNT_HW_BRANCH_MISSES),
+ PERF_CONST(COUNT_HW_BUS_CYCLES),
+ PERF_CONST(COUNT_HW_CACHE_L1D),
+ PERF_CONST(COUNT_HW_CACHE_L1I),
+ PERF_CONST(COUNT_HW_CACHE_LL),
+ PERF_CONST(COUNT_HW_CACHE_DTLB),
+ PERF_CONST(COUNT_HW_CACHE_ITLB),
+ PERF_CONST(COUNT_HW_CACHE_BPU),
+ PERF_CONST(COUNT_HW_CACHE_OP_READ),
+ PERF_CONST(COUNT_HW_CACHE_OP_WRITE),
+ PERF_CONST(COUNT_HW_CACHE_OP_PREFETCH),
+ PERF_CONST(COUNT_HW_CACHE_RESULT_ACCESS),
+ PERF_CONST(COUNT_HW_CACHE_RESULT_MISS),
+
+ PERF_CONST(COUNT_HW_STALLED_CYCLES_FRONTEND),
+ PERF_CONST(COUNT_HW_STALLED_CYCLES_BACKEND),
+
+ PERF_CONST(COUNT_SW_CPU_CLOCK),
+ PERF_CONST(COUNT_SW_TASK_CLOCK),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS),
+ PERF_CONST(COUNT_SW_CONTEXT_SWITCHES),
+ PERF_CONST(COUNT_SW_CPU_MIGRATIONS),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS_MIN),
+ PERF_CONST(COUNT_SW_PAGE_FAULTS_MAJ),
+ PERF_CONST(COUNT_SW_ALIGNMENT_FAULTS),
+ PERF_CONST(COUNT_SW_EMULATION_FAULTS),
+ PERF_CONST(COUNT_SW_DUMMY),
+
+ PERF_CONST(SAMPLE_IP),
+ PERF_CONST(SAMPLE_TID),
+ PERF_CONST(SAMPLE_TIME),
+ PERF_CONST(SAMPLE_ADDR),
+ PERF_CONST(SAMPLE_READ),
+ PERF_CONST(SAMPLE_CALLCHAIN),
+ PERF_CONST(SAMPLE_ID),
+ PERF_CONST(SAMPLE_CPU),
+ PERF_CONST(SAMPLE_PERIOD),
+ PERF_CONST(SAMPLE_STREAM_ID),
+ PERF_CONST(SAMPLE_RAW),
+
+ PERF_CONST(FORMAT_TOTAL_TIME_ENABLED),
+ PERF_CONST(FORMAT_TOTAL_TIME_RUNNING),
+ PERF_CONST(FORMAT_ID),
+ PERF_CONST(FORMAT_GROUP),
+
+ PERF_CONST(RECORD_MMAP),
+ PERF_CONST(RECORD_LOST),
+ PERF_CONST(RECORD_COMM),
+ PERF_CONST(RECORD_EXIT),
+ PERF_CONST(RECORD_THROTTLE),
+ PERF_CONST(RECORD_UNTHROTTLE),
+ PERF_CONST(RECORD_FORK),
+ PERF_CONST(RECORD_READ),
+ PERF_CONST(RECORD_SAMPLE),
+ PERF_CONST(RECORD_MMAP2),
+ PERF_CONST(RECORD_AUX),
+ PERF_CONST(RECORD_ITRACE_START),
+ PERF_CONST(RECORD_LOST_SAMPLES),
+ PERF_CONST(RECORD_SWITCH),
+ PERF_CONST(RECORD_SWITCH_CPU_WIDE),
{ .name = NULL, },
};
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index 1f7becbe5e18..0467367dc315 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -85,6 +85,11 @@ static void perf_probe_comm_exec(struct perf_evsel *evsel)
evsel->attr.comm_exec = 1;
}
+static void perf_probe_context_switch(struct perf_evsel *evsel)
+{
+ evsel->attr.context_switch = 1;
+}
+
bool perf_can_sample_identifier(void)
{
return perf_probe_api(perf_probe_sample_identifier);
@@ -95,6 +100,35 @@ static bool perf_can_comm_exec(void)
return perf_probe_api(perf_probe_comm_exec);
}
+bool perf_can_record_switch_events(void)
+{
+ return perf_probe_api(perf_probe_context_switch);
+}
+
+bool perf_can_record_cpu_wide(void)
+{
+ struct perf_event_attr attr = {
+ .type = PERF_TYPE_SOFTWARE,
+ .config = PERF_COUNT_SW_CPU_CLOCK,
+ .exclude_kernel = 1,
+ };
+ struct cpu_map *cpus;
+ int cpu, fd;
+
+ cpus = cpu_map__new(NULL);
+ if (!cpus)
+ return false;
+ cpu = cpus->map[0];
+ cpu_map__put(cpus);
+
+ fd = sys_perf_event_open(&attr, -1, cpu, -1, 0);
+ if (fd < 0)
+ return false;
+ close(fd);
+
+ return true;
+}
+
void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts)
{
struct perf_evsel *evsel;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index ed9dc2555ec7..8a4537ee9bc3 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -170,7 +170,7 @@ static void perf_session__delete_threads(struct perf_session *session)
machine__delete_threads(&session->machines.host);
}
-static void perf_session_env__delete(struct perf_session_env *env)
+static void perf_session_env__exit(struct perf_env *env)
{
zfree(&env->hostname);
zfree(&env->os_release);
@@ -180,6 +180,7 @@ static void perf_session_env__delete(struct perf_session_env *env)
zfree(&env->cpuid);
zfree(&env->cmdline);
+ zfree(&env->cmdline_argv);
zfree(&env->sibling_cores);
zfree(&env->sibling_threads);
zfree(&env->numa_nodes);
@@ -192,7 +193,7 @@ void perf_session__delete(struct perf_session *session)
auxtrace_index__free(&session->auxtrace_index);
perf_session__destroy_kernel_maps(session);
perf_session__delete_threads(session);
- perf_session_env__delete(&session->header.env);
+ perf_session_env__exit(&session->header.env);
machines__exit(&session->machines);
if (session->file)
perf_data_file__close(session->file);
@@ -332,6 +333,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
tool->aux = perf_event__process_aux;
if (tool->itrace_start == NULL)
tool->itrace_start = perf_event__process_itrace_start;
+ if (tool->context_switch == NULL)
+ tool->context_switch = perf_event__process_switch;
if (tool->read == NULL)
tool->read = process_event_sample_stub;
if (tool->throttle == NULL)
@@ -470,6 +473,19 @@ static void perf_event__itrace_start_swap(union perf_event *event,
swap_sample_id_all(event, &event->itrace_start + 1);
}
+static void perf_event__switch_swap(union perf_event *event, bool sample_id_all)
+{
+ if (event->header.type == PERF_RECORD_SWITCH_CPU_WIDE) {
+ event->context_switch.next_prev_pid =
+ bswap_32(event->context_switch.next_prev_pid);
+ event->context_switch.next_prev_tid =
+ bswap_32(event->context_switch.next_prev_tid);
+ }
+
+ if (sample_id_all)
+ swap_sample_id_all(event, &event->context_switch + 1);
+}
+
static void perf_event__throttle_swap(union perf_event *event,
bool sample_id_all)
{
@@ -632,6 +648,8 @@ static perf_event__swap_op perf_event__swap_ops[] = {
[PERF_RECORD_AUX] = perf_event__aux_swap,
[PERF_RECORD_ITRACE_START] = perf_event__itrace_start_swap,
[PERF_RECORD_LOST_SAMPLES] = perf_event__all64_swap,
+ [PERF_RECORD_SWITCH] = perf_event__switch_swap,
+ [PERF_RECORD_SWITCH_CPU_WIDE] = perf_event__switch_swap,
[PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
[PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
[PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
@@ -766,10 +784,18 @@ static void branch_stack__printf(struct perf_sample *sample)
printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr);
- for (i = 0; i < sample->branch_stack->nr; i++)
- printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n",
- i, sample->branch_stack->entries[i].from,
- sample->branch_stack->entries[i].to);
+ for (i = 0; i < sample->branch_stack->nr; i++) {
+ struct branch_entry *e = &sample->branch_stack->entries[i];
+
+ printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 " %hu cycles %s%s%s%s %x\n",
+ i, e->from, e->to,
+ e->flags.cycles,
+ e->flags.mispred ? "M" : " ",
+ e->flags.predicted ? "P" : " ",
+ e->flags.abort ? "A" : " ",
+ e->flags.in_tx ? "T" : " ",
+ (unsigned)e->flags.reserved);
+ }
}
static void regs_dump__printf(u64 mask, u64 *regs)
@@ -1093,6 +1119,9 @@ static int machines__deliver_event(struct machines *machines,
return tool->aux(tool, event, sample, machine);
case PERF_RECORD_ITRACE_START:
return tool->itrace_start(tool, event, sample, machine);
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ return tool->context_switch(tool, event, sample, machine);
default:
++evlist->stats.nr_unknown_events;
return -1;
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 4c65a143a34c..7e3871606df3 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -9,7 +9,7 @@ regex_t parent_regex;
const char default_parent_pattern[] = "^sys_|^do_page_fault";
const char *parent_pattern = default_parent_pattern;
const char default_sort_order[] = "comm,dso,symbol";
-const char default_branch_sort_order[] = "comm,dso_from,symbol_from,dso_to,symbol_to";
+const char default_branch_sort_order[] = "comm,dso_from,symbol_from,symbol_to,cycles";
const char default_mem_sort_order[] = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked";
const char default_top_sort_order[] = "dso,symbol";
const char default_diff_sort_order[] = "dso,symbol";
@@ -319,6 +319,59 @@ struct sort_entry sort_srcline = {
.se_width_idx = HISTC_SRCLINE,
};
+/* --sort srcfile */
+
+static char no_srcfile[1];
+
+static char *get_srcfile(struct hist_entry *e)
+{
+ char *sf, *p;
+ struct map *map = e->ms.map;
+
+ sf = get_srcline(map->dso, map__rip_2objdump(map, e->ip),
+ e->ms.sym, true);
+ if (!strcmp(sf, SRCLINE_UNKNOWN))
+ return no_srcfile;
+ p = strchr(sf, ':');
+ if (p && *sf) {
+ *p = 0;
+ return sf;
+ }
+ free(sf);
+ return no_srcfile;
+}
+
+static int64_t
+sort__srcfile_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ if (!left->srcfile) {
+ if (!left->ms.map)
+ left->srcfile = no_srcfile;
+ else
+ left->srcfile = get_srcfile(left);
+ }
+ if (!right->srcfile) {
+ if (!right->ms.map)
+ right->srcfile = no_srcfile;
+ else
+ right->srcfile = get_srcfile(right);
+ }
+ return strcmp(right->srcfile, left->srcfile);
+}
+
+static int hist_entry__srcfile_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ return repsep_snprintf(bf, size, "%-*.*s", width, width, he->srcfile);
+}
+
+struct sort_entry sort_srcfile = {
+ .se_header = "Source File",
+ .se_cmp = sort__srcfile_cmp,
+ .se_snprintf = hist_entry__srcfile_snprintf,
+ .se_width_idx = HISTC_SRCFILE,
+};
+
/* --sort parent */
static int64_t
@@ -526,6 +579,29 @@ static int hist_entry__mispredict_snprintf(struct hist_entry *he, char *bf,
return repsep_snprintf(bf, size, "%-*.*s", width, width, out);
}
+static int64_t
+sort__cycles_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return left->branch_info->flags.cycles -
+ right->branch_info->flags.cycles;
+}
+
+static int hist_entry__cycles_snprintf(struct hist_entry *he, char *bf,
+ size_t size, unsigned int width)
+{
+ if (he->branch_info->flags.cycles == 0)
+ return repsep_snprintf(bf, size, "%-*s", width, "-");
+ return repsep_snprintf(bf, size, "%-*hd", width,
+ he->branch_info->flags.cycles);
+}
+
+struct sort_entry sort_cycles = {
+ .se_header = "Basic Block Cycles",
+ .se_cmp = sort__cycles_cmp,
+ .se_snprintf = hist_entry__cycles_snprintf,
+ .se_width_idx = HISTC_CYCLES,
+};
+
/* --sort daddr_sym */
static int64_t
sort__daddr_cmp(struct hist_entry *left, struct hist_entry *right)
@@ -1173,6 +1249,7 @@ static struct sort_dimension common_sort_dimensions[] = {
DIM(SORT_PARENT, "parent", sort_parent),
DIM(SORT_CPU, "cpu", sort_cpu),
DIM(SORT_SRCLINE, "srcline", sort_srcline),
+ DIM(SORT_SRCFILE, "srcfile", sort_srcfile),
DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
DIM(SORT_TRANSACTION, "transaction", sort_transaction),
@@ -1190,6 +1267,7 @@ static struct sort_dimension bstack_sort_dimensions[] = {
DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
DIM(SORT_IN_TX, "in_tx", sort_in_tx),
DIM(SORT_ABORT, "abort", sort_abort),
+ DIM(SORT_CYCLES, "cycles", sort_cycles),
};
#undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index e97cd476d336..3c2a399f8f5b 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -114,6 +114,7 @@ struct hist_entry {
};
};
char *srcline;
+ char *srcfile;
struct symbol *parent;
struct rb_root sorted_chain;
struct branch_info *branch_info;
@@ -172,6 +173,7 @@ enum sort_type {
SORT_PARENT,
SORT_CPU,
SORT_SRCLINE,
+ SORT_SRCFILE,
SORT_LOCAL_WEIGHT,
SORT_GLOBAL_WEIGHT,
SORT_TRANSACTION,
@@ -185,6 +187,7 @@ enum sort_type {
SORT_MISPREDICT,
SORT_ABORT,
SORT_IN_TX,
+ SORT_CYCLES,
/* memory mode specific sort keys */
__SORT_MEMORY_MODE,
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index c93fb0c5bd0b..fc08248f08ca 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -10,6 +10,8 @@
#include "symbol.h"
+bool srcline_full_filename;
+
#ifdef HAVE_LIBBFD_SUPPORT
/*
@@ -277,7 +279,9 @@ char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
if (!addr2line(dso_name, addr, &file, &line, dso))
goto out;
- if (asprintf(&srcline, "%s:%u", basename(file), line) < 0) {
+ if (asprintf(&srcline, "%s:%u",
+ srcline_full_filename ? file : basename(file),
+ line) < 0) {
free(file);
goto out;
}
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index f2a0d1521e26..415c359de465 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -97,55 +97,6 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
}
}
-struct perf_counts *perf_counts__new(int ncpus, int nthreads)
-{
- struct perf_counts *counts = zalloc(sizeof(*counts));
-
- if (counts) {
- struct xyarray *values;
-
- values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
- if (!values) {
- free(counts);
- return NULL;
- }
-
- counts->values = values;
- }
-
- return counts;
-}
-
-void perf_counts__delete(struct perf_counts *counts)
-{
- if (counts) {
- xyarray__delete(counts->values);
- free(counts);
- }
-}
-
-static void perf_counts__reset(struct perf_counts *counts)
-{
- xyarray__reset(counts->values);
-}
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel)
-{
- perf_counts__reset(evsel->counts);
-}
-
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
-{
- evsel->counts = perf_counts__new(ncpus, nthreads);
- return evsel->counts != NULL ? 0 : -ENOMEM;
-}
-
-void perf_evsel__free_counts(struct perf_evsel *evsel)
-{
- perf_counts__delete(evsel->counts);
- evsel->counts = NULL;
-}
-
void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
{
int i;
@@ -238,3 +189,142 @@ void perf_evlist__reset_stats(struct perf_evlist *evlist)
perf_evsel__reset_counts(evsel);
}
}
+
+static void zero_per_pkg(struct perf_evsel *counter)
+{
+ if (counter->per_pkg_mask)
+ memset(counter->per_pkg_mask, 0, MAX_NR_CPUS);
+}
+
+static int check_per_pkg(struct perf_evsel *counter, int cpu, bool *skip)
+{
+ unsigned long *mask = counter->per_pkg_mask;
+ struct cpu_map *cpus = perf_evsel__cpus(counter);
+ int s;
+
+ *skip = false;
+
+ if (!counter->per_pkg)
+ return 0;
+
+ if (cpu_map__empty(cpus))
+ return 0;
+
+ if (!mask) {
+ mask = zalloc(MAX_NR_CPUS);
+ if (!mask)
+ return -ENOMEM;
+
+ counter->per_pkg_mask = mask;
+ }
+
+ s = cpu_map__get_socket(cpus, cpu);
+ if (s < 0)
+ return -1;
+
+ *skip = test_and_set_bit(s, mask) == 1;
+ return 0;
+}
+
+static int
+process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel,
+ int cpu, int thread,
+ struct perf_counts_values *count)
+{
+ struct perf_counts_values *aggr = &evsel->counts->aggr;
+ static struct perf_counts_values zero;
+ bool skip = false;
+
+ if (check_per_pkg(evsel, cpu, &skip)) {
+ pr_err("failed to read per-pkg counter\n");
+ return -1;
+ }
+
+ if (skip)
+ count = &zero;
+
+ switch (config->aggr_mode) {
+ case AGGR_THREAD:
+ case AGGR_CORE:
+ case AGGR_SOCKET:
+ case AGGR_NONE:
+ if (!evsel->snapshot)
+ perf_evsel__compute_deltas(evsel, cpu, thread, count);
+ perf_counts_values__scale(count, config->scale, NULL);
+ if (config->aggr_mode == AGGR_NONE)
+ perf_stat__update_shadow_stats(evsel, count->values, cpu);
+ break;
+ case AGGR_GLOBAL:
+ aggr->val += count->val;
+ if (config->scale) {
+ aggr->ena += count->ena;
+ aggr->run += count->run;
+ }
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int process_counter_maps(struct perf_stat_config *config,
+ struct perf_evsel *counter)
+{
+ int nthreads = thread_map__nr(counter->threads);
+ int ncpus = perf_evsel__nr_cpus(counter);
+ int cpu, thread;
+
+ if (counter->system_wide)
+ nthreads = 1;
+
+ for (thread = 0; thread < nthreads; thread++) {
+ for (cpu = 0; cpu < ncpus; cpu++) {
+ if (process_counter_values(config, counter, cpu, thread,
+ perf_counts(counter->counts, cpu, thread)))
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+int perf_stat_process_counter(struct perf_stat_config *config,
+ struct perf_evsel *counter)
+{
+ struct perf_counts_values *aggr = &counter->counts->aggr;
+ struct perf_stat *ps = counter->priv;
+ u64 *count = counter->counts->aggr.values;
+ int i, ret;
+
+ aggr->val = aggr->ena = aggr->run = 0;
+ init_stats(ps->res_stats);
+
+ if (counter->per_pkg)
+ zero_per_pkg(counter);
+
+ ret = process_counter_maps(config, counter);
+ if (ret)
+ return ret;
+
+ if (config->aggr_mode != AGGR_GLOBAL)
+ return 0;
+
+ if (!counter->snapshot)
+ perf_evsel__compute_deltas(counter, -1, -1, aggr);
+ perf_counts_values__scale(aggr, config->scale, &counter->counts->scaled);
+
+ for (i = 0; i < 3; i++)
+ update_stats(&ps->res_stats[i], count[i]);
+
+ if (verbose) {
+ fprintf(config->output, "%s: %" PRIu64 " %" PRIu64 " %" PRIu64 "\n",
+ perf_evsel__name(counter), count[0], count[1], count[2]);
+ }
+
+ /*
+ * Save the full runtime - to allow normalization during printout:
+ */
+ perf_stat__update_shadow_stats(counter, count, 0);
+
+ return 0;
+}
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index 1cfbe0a980ac..62448c8175d3 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -33,29 +33,13 @@ enum aggr_mode {
AGGR_THREAD,
};
-struct perf_counts_values {
- union {
- struct {
- u64 val;
- u64 ena;
- u64 run;
- };
- u64 values[3];
- };
+struct perf_stat_config {
+ enum aggr_mode aggr_mode;
+ bool scale;
+ FILE *output;
+ unsigned int interval;
};
-struct perf_counts {
- s8 scaled;
- struct perf_counts_values aggr;
- struct xyarray *values;
-};
-
-static inline struct perf_counts_values*
-perf_counts(struct perf_counts *counts, int cpu, int thread)
-{
- return xyarray__entry(counts->values, cpu, thread);
-}
-
void update_stats(struct stats *stats, u64 val);
double avg_stats(struct stats *stats);
double stddev_stats(struct stats *stats);
@@ -89,13 +73,6 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
double avg, int cpu, enum aggr_mode aggr);
-struct perf_counts *perf_counts__new(int ncpus, int nthreads);
-void perf_counts__delete(struct perf_counts *counts);
-
-void perf_evsel__reset_counts(struct perf_evsel *evsel);
-int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads);
-void perf_evsel__free_counts(struct perf_evsel *evsel);
-
void perf_evsel__reset_stat_priv(struct perf_evsel *evsel);
int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel);
void perf_evsel__free_stat_priv(struct perf_evsel *evsel);
@@ -109,4 +86,7 @@ int perf_evsel__alloc_stats(struct perf_evsel *evsel, bool alloc_raw);
int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
void perf_evlist__free_stats(struct perf_evlist *evlist);
void perf_evlist__reset_stats(struct perf_evlist *evlist);
+
+int perf_stat_process_counter(struct perf_stat_config *config,
+ struct perf_evsel *counter);
#endif
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index 6afd6106ceb5..fc8781de62db 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -357,3 +357,42 @@ void *memdup(const void *src, size_t len)
return p;
}
+
+char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints)
+{
+ /*
+ * FIXME: replace this with an expression using log10() when we
+ * find a suitable implementation, maybe the one in the dvb drivers...
+ *
+ * "%s == %d || " = log10(MAXINT) * 2 + 8 chars for the operators
+ */
+ size_t size = nints * 28 + 1; /* \0 */
+ size_t i, printed = 0;
+ char *expr = malloc(size);
+
+ if (expr) {
+ const char *or_and = "||", *eq_neq = "==";
+ char *e = expr;
+
+ if (!in) {
+ or_and = "&&";
+ eq_neq = "!=";
+ }
+
+ for (i = 0; i < nints; ++i) {
+ if (printed == size)
+ goto out_err_overflow;
+
+ if (i > 0)
+ printed += snprintf(e + printed, size - printed, " %s ", or_and);
+ printed += scnprintf(e + printed, size - printed,
+ "%s %s %d", var, eq_neq, ints[i]);
+ }
+ }
+
+ return expr;
+
+out_err_overflow:
+ free(expr);
+ return NULL;
+}
diff --git a/tools/perf/util/strlist.c b/tools/perf/util/strlist.c
index 71f9d102b96f..bdf98f6f27bb 100644
--- a/tools/perf/util/strlist.c
+++ b/tools/perf/util/strlist.c
@@ -72,7 +72,7 @@ int strlist__load(struct strlist *slist, const char *filename)
FILE *fp = fopen(filename, "r");
if (fp == NULL)
- return errno;
+ return -errno;
while (fgets(entry, sizeof(entry), fp) != NULL) {
const size_t len = strlen(entry);
@@ -108,43 +108,70 @@ struct str_node *strlist__find(struct strlist *slist, const char *entry)
return snode;
}
-static int strlist__parse_list_entry(struct strlist *slist, const char *s)
+static int strlist__parse_list_entry(struct strlist *slist, const char *s,
+ const char *subst_dir)
{
+ int err;
+ char *subst = NULL;
+
if (strncmp(s, "file://", 7) == 0)
return strlist__load(slist, s + 7);
- return strlist__add(slist, s);
+ if (subst_dir) {
+ err = -ENOMEM;
+ if (asprintf(&subst, "%s/%s", subst_dir, s) < 0)
+ goto out;
+
+ if (access(subst, F_OK) == 0) {
+ err = strlist__load(slist, subst);
+ goto out;
+ }
+ }
+
+ err = strlist__add(slist, s);
+out:
+ free(subst);
+ return err;
}
-int strlist__parse_list(struct strlist *slist, const char *s)
+static int strlist__parse_list(struct strlist *slist, const char *s, const char *subst_dir)
{
char *sep;
int err;
while ((sep = strchr(s, ',')) != NULL) {
*sep = '\0';
- err = strlist__parse_list_entry(slist, s);
+ err = strlist__parse_list_entry(slist, s, subst_dir);
*sep = ',';
if (err != 0)
return err;
s = sep + 1;
}
- return *s ? strlist__parse_list_entry(slist, s) : 0;
+ return *s ? strlist__parse_list_entry(slist, s, subst_dir) : 0;
}
-struct strlist *strlist__new(bool dupstr, const char *list)
+struct strlist *strlist__new(const char *list, const struct strlist_config *config)
{
struct strlist *slist = malloc(sizeof(*slist));
if (slist != NULL) {
+ bool dupstr = true;
+ const char *dirname = NULL;
+
+ if (config) {
+ dupstr = !config->dont_dupstr;
+ dirname = config->dirname;
+ }
+
rblist__init(&slist->rblist);
slist->rblist.node_cmp = strlist__node_cmp;
slist->rblist.node_new = strlist__node_new;
slist->rblist.node_delete = strlist__node_delete;
slist->dupstr = dupstr;
- if (list && strlist__parse_list(slist, list) != 0)
+
+ if (list && strlist__parse_list(slist, list, dirname) != 0)
goto out_error;
}
diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h
index 5c7f87069d9c..297565aa7535 100644
--- a/tools/perf/util/strlist.h
+++ b/tools/perf/util/strlist.h
@@ -16,7 +16,12 @@ struct strlist {
bool dupstr;
};
-struct strlist *strlist__new(bool dupstr, const char *slist);
+struct strlist_config {
+ bool dont_dupstr;
+ const char *dirname;
+};
+
+struct strlist *strlist__new(const char *slist, const struct strlist_config *config);
void strlist__delete(struct strlist *slist);
void strlist__remove(struct strlist *slist, struct str_node *sn);
@@ -74,6 +79,4 @@ static inline struct str_node *strlist__next(struct str_node *sn)
#define strlist__for_each_safe(pos, n, slist) \
for (pos = strlist__first(slist), n = strlist__next(pos); pos;\
pos = n, n = strlist__next(n))
-
-int strlist__parse_list(struct strlist *slist, const char *s);
#endif /* __PERF_STRLIST_H */
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 65f7e389ae09..53bb5f59ec58 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -38,7 +38,7 @@ static inline char *bfd_demangle(void __maybe_unused *v,
#endif
#ifndef HAVE_ELF_GETPHDRNUM_SUPPORT
-static int elf_getphdrnum(Elf *elf, size_t *dst)
+int elf_getphdrnum(Elf *elf, size_t *dst)
{
GElf_Ehdr gehdr;
GElf_Ehdr *ehdr;
@@ -875,6 +875,17 @@ int dso__load_sym(struct dso *dso, struct map *map,
}
}
+ /*
+ * Handle any relocation of vdso necessary because older kernels
+ * attempted to prelink vdso to its virtual address.
+ */
+ if (dso__is_vdso(dso)) {
+ GElf_Shdr tshdr;
+
+ if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL))
+ map->reloc = map->start - tshdr.sh_addr + tshdr.sh_offset;
+ }
+
dso->adjust_symbols = runtime_ss->adjust_symbols || ref_reloc(kmap);
/*
* Initial kernel and module mappings do not map to the dso. For
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 60f11414bb5c..1f97ffb158a6 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -441,10 +441,25 @@ static struct symbol *symbols__find_by_name(struct rb_root *symbols,
return &s->sym;
}
+void dso__reset_find_symbol_cache(struct dso *dso)
+{
+ enum map_type type;
+
+ for (type = MAP__FUNCTION; type <= MAP__VARIABLE; ++type) {
+ dso->last_find_result[type].addr = 0;
+ dso->last_find_result[type].symbol = NULL;
+ }
+}
+
struct symbol *dso__find_symbol(struct dso *dso,
enum map_type type, u64 addr)
{
- return symbols__find(&dso->symbols[type], addr);
+ if (dso->last_find_result[type].addr != addr) {
+ dso->last_find_result[type].addr = addr;
+ dso->last_find_result[type].symbol = symbols__find(&dso->symbols[type], addr);
+ }
+
+ return dso->last_find_result[type].symbol;
}
struct symbol *dso__first_symbol(struct dso *dso, enum map_type type)
@@ -1133,8 +1148,8 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
fd = open(kcore_filename, O_RDONLY);
if (fd < 0) {
- pr_err("%s requires CAP_SYS_RAWIO capability to access.\n",
- kcore_filename);
+ pr_debug("Failed to open %s. Note /proc/kcore requires CAP_SYS_RAWIO capability to access.\n",
+ kcore_filename);
return -EINVAL;
}
@@ -1838,7 +1853,7 @@ static void vmlinux_path__exit(void)
zfree(&vmlinux_path);
}
-static int vmlinux_path__init(struct perf_session_env *env)
+static int vmlinux_path__init(struct perf_env *env)
{
struct utsname uts;
char bf[PATH_MAX];
@@ -1906,7 +1921,7 @@ int setup_list(struct strlist **list, const char *list_str,
if (list_str == NULL)
return 0;
- *list = strlist__new(true, list_str);
+ *list = strlist__new(list_str, NULL);
if (!*list) {
pr_err("problems parsing %s list\n", list_name);
return -1;
@@ -1949,7 +1964,7 @@ static bool symbol__read_kptr_restrict(void)
return value;
}
-int symbol__init(struct perf_session_env *env)
+int symbol__init(struct perf_env *env)
{
const char *symfs;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index b98ce51af142..440ba8ae888f 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -106,7 +106,8 @@ struct symbol_conf {
filter_relative,
show_hist_headers,
branch_callstack,
- has_filter;
+ has_filter,
+ show_ref_callgraph;
const char *vmlinux_name,
*kallsyms_name,
*source_prefix,
@@ -251,8 +252,8 @@ int modules__parse(const char *filename, void *arg,
int filename__read_debuglink(const char *filename, char *debuglink,
size_t size);
-struct perf_session_env;
-int symbol__init(struct perf_session_env *env);
+struct perf_env;
+int symbol__init(struct perf_env *env);
void symbol__exit(void);
void symbol__elf_init(void);
struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name);
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 292ae2c90e06..6ec3c5ca438f 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -195,7 +195,8 @@ static struct thread_map *thread_map__new_by_pid_str(const char *pid_str)
pid_t pid, prev_pid = INT_MAX;
char *end_ptr;
struct str_node *pos;
- struct strlist *slist = strlist__new(false, pid_str);
+ struct strlist_config slist_config = { .dont_dupstr = true, };
+ struct strlist *slist = strlist__new(pid_str, &slist_config);
if (!slist)
return NULL;
@@ -265,13 +266,14 @@ static struct thread_map *thread_map__new_by_tid_str(const char *tid_str)
pid_t tid, prev_tid = INT_MAX;
char *end_ptr;
struct str_node *pos;
+ struct strlist_config slist_config = { .dont_dupstr = true, };
struct strlist *slist;
/* perf-stat expects threads to be generated even if tid not given */
if (!tid_str)
return thread_map__new_dummy();
- slist = strlist__new(false, tid_str);
+ slist = strlist__new(tid_str, &slist_config);
if (!slist)
return NULL;
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index c307dd438286..cab8cc24831b 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -46,6 +46,7 @@ struct perf_tool {
lost_samples,
aux,
itrace_start,
+ context_switch,
throttle,
unthrottle;
event_attr_op attr;
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index eb72716017ac..22245986e59e 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -341,20 +341,14 @@ out:
static int record_proc_kallsyms(void)
{
- unsigned int size;
- const char *path = "/proc/kallsyms";
- struct stat st;
- int ret, err = 0;
-
- ret = stat(path, &st);
- if (ret < 0) {
- /* not found */
- size = 0;
- if (write(output_fd, &size, 4) != 4)
- err = -EIO;
- return err;
- }
- return record_file(path, 4);
+ unsigned long long size = 0;
+ /*
+ * Just to keep older perf.data file parsers happy, record a zero
+ * sized kallsyms file, i.e. do the same thing that was done when
+ * /proc/kallsyms (or something specified via --kallsyms, in a
+ * different path) couldn't be read.
+ */
+ return write(output_fd, &size, 4) != 4 ? -EIO : 0;
}
static int record_ftrace_printk(void)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index d4957418657e..8ff7d620d942 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -135,36 +135,6 @@ void event_format__print(struct event_format *event,
return event_format__fprintf(event, cpu, data, size, stdout);
}
-void parse_proc_kallsyms(struct pevent *pevent,
- char *file, unsigned int size __maybe_unused)
-{
- unsigned long long addr;
- char *func;
- char *line;
- char *next = NULL;
- char *addr_str;
- char *mod;
- char *fmt = NULL;
-
- line = strtok_r(file, "\n", &next);
- while (line) {
- mod = NULL;
- addr_str = strtok_r(line, " ", &fmt);
- addr = strtoull(addr_str, NULL, 16);
- /* skip character */
- strtok_r(NULL, " ", &fmt);
- func = strtok_r(NULL, "\t", &fmt);
- mod = strtok_r(NULL, "]", &fmt);
- /* truncate the extra '[' */
- if (mod)
- mod = mod + 1;
-
- pevent_register_function(pevent, func, addr, mod);
-
- line = strtok_r(NULL, "\n", &next);
- }
-}
-
void parse_ftrace_printk(struct pevent *pevent,
char *file, unsigned int size __maybe_unused)
{
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 54d9e9b548a8..b67a0ccf5ab9 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -162,25 +162,23 @@ out:
static int read_proc_kallsyms(struct pevent *pevent)
{
unsigned int size;
- char *buf;
size = read4(pevent);
if (!size)
return 0;
-
- buf = malloc(size + 1);
- if (buf == NULL)
- return -1;
-
- if (do_read(buf, size) < 0) {
- free(buf);
- return -1;
- }
- buf[size] = '\0';
-
- parse_proc_kallsyms(pevent, buf, size);
-
- free(buf);
+ /*
+ * Just skip it, now that we configure libtraceevent to use the
+ * tools/perf/ symbol resolver.
+ *
+ * We need to skip it so that we can continue parsing old perf.data
+ * files, that contains this /proc/kallsyms payload.
+ *
+ * Newer perf.data files will have just the 4-bytes zeros "kallsyms
+ * payload", so that older tools can continue reading it and interpret
+ * it as "no kallsyms payload is present".
+ */
+ lseek(input_fd, size, SEEK_CUR);
+ trace_data_size += size;
return 0;
}
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index 6322d37164c5..b90e646c7a91 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -9,6 +9,7 @@
#include <linux/kernel.h>
#include <traceevent/event-parse.h>
#include "trace-event.h"
+#include "machine.h"
#include "util.h"
/*
@@ -19,6 +20,7 @@
* there.
*/
static struct trace_event tevent;
+static bool tevent_initialized;
int trace_event__init(struct trace_event *t)
{
@@ -32,6 +34,31 @@ int trace_event__init(struct trace_event *t)
return pevent ? 0 : -1;
}
+static int trace_event__init2(void)
+{
+ int be = traceevent_host_bigendian();
+ struct pevent *pevent;
+
+ if (trace_event__init(&tevent))
+ return -1;
+
+ pevent = tevent.pevent;
+ pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
+ pevent_set_file_bigendian(pevent, be);
+ pevent_set_host_bigendian(pevent, be);
+ tevent_initialized = true;
+ return 0;
+}
+
+int trace_event__register_resolver(struct machine *machine,
+ pevent_func_resolver_t *func)
+{
+ if (!tevent_initialized && trace_event__init2())
+ return -1;
+
+ return pevent_set_function_resolver(tevent.pevent, func, machine);
+}
+
void trace_event__cleanup(struct trace_event *t)
{
traceevent_unload_plugins(t->plugin_list, t->pevent);
@@ -62,21 +89,8 @@ tp_format(const char *sys, const char *name)
struct event_format*
trace_event__tp_format(const char *sys, const char *name)
{
- static bool initialized;
-
- if (!initialized) {
- int be = traceevent_host_bigendian();
- struct pevent *pevent;
-
- if (trace_event__init(&tevent))
- return NULL;
-
- pevent = tevent.pevent;
- pevent_set_flag(pevent, PEVENT_NSEC_OUTPUT);
- pevent_set_file_bigendian(pevent, be);
- pevent_set_host_bigendian(pevent, be);
- initialized = true;
- }
+ if (!tevent_initialized && trace_event__init2())
+ return NULL;
return tp_format(sys, name);
}
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index d5168f0be4ec..da6cc4cc2a4f 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -18,6 +18,8 @@ struct trace_event {
int trace_event__init(struct trace_event *t);
void trace_event__cleanup(struct trace_event *t);
+int trace_event__register_resolver(struct machine *machine,
+ pevent_func_resolver_t *func);
struct event_format*
trace_event__tp_format(const char *sys, const char *name);
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index edc2d633b332..7acafb3c5592 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -34,6 +34,7 @@ bool test_attr__enabled;
bool perf_host = true;
bool perf_guest = false;
+char tracing_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing";
char tracing_events_path[PATH_MAX + 1] = "/sys/kernel/debug/tracing/events";
void event_attr_init(struct perf_event_attr *attr)
@@ -391,6 +392,8 @@ void set_term_quiet_input(struct termios *old)
static void set_tracing_events_path(const char *tracing, const char *mountpoint)
{
+ snprintf(tracing_path, sizeof(tracing_path), "%s/%s",
+ mountpoint, tracing);
snprintf(tracing_events_path, sizeof(tracing_events_path), "%s/%s%s",
mountpoint, tracing, "events");
}
@@ -436,66 +439,14 @@ const char *perf_debugfs_mount(const char *mountpoint)
void perf_debugfs_set_path(const char *mntpt)
{
- snprintf(debugfs_mountpoint, strlen(debugfs_mountpoint), "%s", mntpt);
set_tracing_events_path("tracing/", mntpt);
}
-static const char *find_tracefs(void)
-{
- const char *path = __perf_tracefs_mount(NULL);
-
- return path;
-}
-
-static const char *find_debugfs(void)
-{
- const char *path = __perf_debugfs_mount(NULL);
-
- if (!path)
- fprintf(stderr, "Your kernel does not support the debugfs filesystem");
-
- return path;
-}
-
-/*
- * Finds the path to the debugfs/tracing
- * Allocates the string and stores it.
- */
-const char *find_tracing_dir(void)
-{
- const char *tracing_dir = "";
- static char *tracing;
- static int tracing_found;
- const char *debugfs;
-
- if (tracing_found)
- return tracing;
-
- debugfs = find_tracefs();
- if (!debugfs) {
- tracing_dir = "/tracing";
- debugfs = find_debugfs();
- if (!debugfs)
- return NULL;
- }
-
- if (asprintf(&tracing, "%s%s", debugfs, tracing_dir) < 0)
- return NULL;
-
- tracing_found = 1;
- return tracing;
-}
-
char *get_tracing_file(const char *name)
{
- const char *tracing;
char *file;
- tracing = find_tracing_dir();
- if (!tracing)
- return NULL;
-
- if (asprintf(&file, "%s/%s", tracing, name) < 0)
+ if (asprintf(&file, "%s/%s", tracing_path, name) < 0)
return NULL;
return file;
@@ -566,6 +517,96 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
return (unsigned long) -1;
}
+int get_stack_size(const char *str, unsigned long *_size)
+{
+ char *endptr;
+ unsigned long size;
+ unsigned long max_size = round_down(USHRT_MAX, sizeof(u64));
+
+ size = strtoul(str, &endptr, 0);
+
+ do {
+ if (*endptr)
+ break;
+
+ size = round_up(size, sizeof(u64));
+ if (!size || size > max_size)
+ break;
+
+ *_size = size;
+ return 0;
+
+ } while (0);
+
+ pr_err("callchain: Incorrect stack dump size (max %ld): %s\n",
+ max_size, str);
+ return -1;
+}
+
+int parse_callchain_record(const char *arg, struct callchain_param *param)
+{
+ char *tok, *name, *saveptr = NULL;
+ char *buf;
+ int ret = -1;
+
+ /* We need buffer that we know we can write to. */
+ buf = malloc(strlen(arg) + 1);
+ if (!buf)
+ return -ENOMEM;
+
+ strcpy(buf, arg);
+
+ tok = strtok_r((char *)buf, ",", &saveptr);
+ name = tok ? : (char *)buf;
+
+ do {
+ /* Framepointer style */
+ if (!strncmp(name, "fp", sizeof("fp"))) {
+ if (!strtok_r(NULL, ",", &saveptr)) {
+ param->record_mode = CALLCHAIN_FP;
+ ret = 0;
+ } else
+ pr_err("callchain: No more arguments "
+ "needed for --call-graph fp\n");
+ break;
+
+#ifdef HAVE_DWARF_UNWIND_SUPPORT
+ /* Dwarf style */
+ } else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
+ const unsigned long default_stack_dump_size = 8192;
+
+ ret = 0;
+ param->record_mode = CALLCHAIN_DWARF;
+ param->dump_size = default_stack_dump_size;
+
+ tok = strtok_r(NULL, ",", &saveptr);
+ if (tok) {
+ unsigned long size = 0;
+
+ ret = get_stack_size(tok, &size);
+ param->dump_size = size;
+ }
+#endif /* HAVE_DWARF_UNWIND_SUPPORT */
+ } else if (!strncmp(name, "lbr", sizeof("lbr"))) {
+ if (!strtok_r(NULL, ",", &saveptr)) {
+ param->record_mode = CALLCHAIN_LBR;
+ ret = 0;
+ } else
+ pr_err("callchain: No more arguments "
+ "needed for --call-graph lbr\n");
+ break;
+ } else {
+ pr_err("callchain: Unknown --call-graph option "
+ "value: %s\n", arg);
+ break;
+ }
+
+ } while (0);
+
+ free(buf);
+ return ret;
+}
+
int filename__read_str(const char *filename, char **buf, size_t *sizep)
{
size_t size = 0, alloc_size = 0;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 8bce58b47a82..291be1d84bc3 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -83,10 +83,10 @@
extern const char *graph_line;
extern const char *graph_dotted_line;
extern char buildid_dir[];
+extern char tracing_path[];
extern char tracing_events_path[];
extern void perf_debugfs_set_path(const char *mountpoint);
const char *perf_debugfs_mount(const char *mountpoint);
-const char *find_tracing_dir(void);
char *get_tracing_file(const char *name);
void put_tracing_file(char *file);
@@ -318,6 +318,7 @@ static inline int path__join3(char *bf, size_t size,
struct dso;
struct symbol;
+extern bool srcline_full_filename;
char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
bool show_sym);
void free_srcline(char *srcline);
@@ -339,4 +340,18 @@ int gzip_decompress_to_file(const char *input, int output_fd);
int lzma_decompress_to_file(const char *input, int output_fd);
#endif
+char *asprintf_expr_inout_ints(const char *var, bool in, size_t nints, int *ints);
+
+static inline char *asprintf_expr_in_ints(const char *var, size_t nints, int *ints)
+{
+ return asprintf_expr_inout_ints(var, true, nints, ints);
+}
+
+static inline char *asprintf_expr_not_in_ints(const char *var, size_t nints, int *ints)
+{
+ return asprintf_expr_inout_ints(var, false, nints, ints);
+}
+
+int get_stack_size(const char *str, unsigned long *_size);
+
#endif /* GIT_COMPAT_UTIL_H */
diff --git a/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c
index 5224ee5b392d..6ff8383f2941 100644
--- a/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c
+++ b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c
@@ -81,11 +81,11 @@ static int __init cpufreq_test_tsc(void)
printk(KERN_DEBUG "start--> \n");
then = read_pmtmr();
- rdtscll(then_tsc);
+ then_tsc = rdtsc();
for (i=0;i<20;i++) {
mdelay(100);
now = read_pmtmr();
- rdtscll(now_tsc);
+ now_tsc = rdtsc();
diff = (now - then) & 0xFFFFFF;
diff_tsc = now_tsc - then_tsc;
printk(KERN_DEBUG "t1: %08u t2: %08u diff_pmtmr: %08u diff_tsc: %016llu\n", then, now, diff, diff_tsc);
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 3fc6c10c2479..c4366dc74e01 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -9,7 +9,15 @@ modprobe test_firmware
DIR=/sys/devices/virtual/misc/test_firmware
-OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
+# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
+# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
+# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
+HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
+
+if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+ OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
+fi
+
OLD_FWPATH=$(cat /sys/module/firmware_class/parameters/path)
FWPATH=$(mktemp -d)
@@ -17,7 +25,9 @@ FW="$FWPATH/test-firmware.bin"
test_finish()
{
- echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
+ if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+ echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
+ fi
echo -n "$OLD_PATH" >/sys/module/firmware_class/parameters/path
rm -f "$FW"
rmdir "$FWPATH"
@@ -25,8 +35,11 @@ test_finish()
trap "test_finish" EXIT
-# Turn down the timeout so failures don't take so long.
-echo 1 >/sys/class/firmware/timeout
+if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+ # Turn down the timeout so failures don't take so long.
+ echo 1 >/sys/class/firmware/timeout
+fi
+
# Set the kernel search path.
echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
@@ -41,7 +54,9 @@ if diff -q "$FW" /dev/test_firmware >/dev/null ; then
echo "$0: firmware was not expected to match" >&2
exit 1
else
- echo "$0: timeout works"
+ if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+ echo "$0: timeout works"
+ fi
fi
# This should succeed via kernel load or will fail after 1 second after
diff --git a/tools/testing/selftests/firmware/fw_userhelper.sh b/tools/testing/selftests/firmware/fw_userhelper.sh
index 6efbade12139..b9983f8e09f6 100755
--- a/tools/testing/selftests/firmware/fw_userhelper.sh
+++ b/tools/testing/selftests/firmware/fw_userhelper.sh
@@ -9,7 +9,17 @@ modprobe test_firmware
DIR=/sys/devices/virtual/misc/test_firmware
-OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
+# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
+# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
+# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
+HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
+
+if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+ OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
+else
+ echo "usermode helper disabled so ignoring test"
+ exit 0
+fi
FWPATH=$(mktemp -d)
FW="$FWPATH/test-firmware.bin"
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
index 2cc0e60eba6e..bafe94cbd739 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
@@ -5,6 +5,6 @@ CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_DEBUG_LOCK_ALLOC=y
-CONFIG_PROVE_LOCKING=n
-#CHECK#CONFIG_PROVE_RCU=n
+CONFIG_PROVE_LOCKING=y
+#CHECK#CONFIG_PROVE_RCU=y
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
index 8e9137f66831..f572b873c620 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
@@ -13,7 +13,6 @@ CONFIG_MAXSMP=y
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_ZERO=y
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02 b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
index aeea6a204d14..ef6a22c44dea 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
@@ -17,7 +17,6 @@ CONFIG_RCU_FANOUT_LEAF=3
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T
index 2ac9e68ea3d1..917d2517b5b5 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T
@@ -17,6 +17,5 @@ CONFIG_RCU_FANOUT_LEAF=3
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE03 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
index 72aa7d87ea99..7a17c503b382 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
@@ -13,7 +13,6 @@ CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=y
CONFIG_RCU_KTHREAD_PRIO=2
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
index 3f5112751cda..39a2c6d7d7ec 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
@@ -17,6 +17,5 @@ CONFIG_RCU_FANOUT=4
CONFIG_RCU_FANOUT_LEAF=4
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE05 b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
index c04dfea6fd21..1257d3227b1e 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE05
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
@@ -17,6 +17,5 @@ CONFIG_RCU_NOCB_CPU_NONE=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
#CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE06 b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
index f51d2c73a68e..d3e456b74cbe 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE06
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
@@ -18,6 +18,5 @@ CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
#CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE07 b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
index f422af4ff5a3..3956b4131f72 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE07
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
@@ -17,6 +17,5 @@ CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08 b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
index a24d2ca30646..bb9b0c1a23c2 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
@@ -19,7 +19,6 @@ CONFIG_RCU_NOCB_CPU_ALL=y
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_LOCKING=y
#CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
index b2b8cea69dc9..2ad13f0d29cc 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
@@ -17,6 +17,5 @@ CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_ALL=y
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE09 b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
index aa4ed08d999d..6710e749d9de 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE09
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
@@ -13,7 +13,6 @@ CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
#CHECK#CONFIG_RCU_EXPERT=n
diff --git a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
index b24c0004fc49..657f3a035488 100644
--- a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
+++ b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
@@ -16,7 +16,6 @@ CONFIG_PROVE_LOCKING -- Do several, covering CONFIG_DEBUG_LOCK_ALLOC=y and not.
CONFIG_PROVE_RCU -- Hardwired to CONFIG_PROVE_LOCKING.
CONFIG_RCU_BOOST -- one of PREEMPT_RCU.
CONFIG_RCU_KTHREAD_PRIO -- set to 2 for _BOOST testing.
-CONFIG_RCU_CPU_STALL_INFO -- Now default, avoid at least twice.
CONFIG_RCU_FANOUT -- Cover hierarchy, but overlap with others.
CONFIG_RCU_FANOUT_LEAF -- Do one non-default.
CONFIG_RCU_FAST_NO_HZ -- Do one, but not with CONFIG_RCU_NOCB_CPU_ALL.
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index caa60d56d7d1..29089b24d18b 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -4,8 +4,8 @@ include ../lib.mk
.PHONY: all all_32 all_64 warn_32bit_failure clean
-TARGETS_C_BOTHBITS := sigreturn single_step_syscall sysret_ss_attrs
-TARGETS_C_32BIT_ONLY := entry_from_vm86
+TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs ldt_gdt syscall_nt
+TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn
TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
diff --git a/tools/testing/selftests/x86/entry_from_vm86.c b/tools/testing/selftests/x86/entry_from_vm86.c
index 5c38a187677b..9a43a59a9bb4 100644
--- a/tools/testing/selftests/x86/entry_from_vm86.c
+++ b/tools/testing/selftests/x86/entry_from_vm86.c
@@ -28,6 +28,55 @@
static unsigned long load_addr = 0x10000;
static int nerrs = 0;
+static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
+ int flags)
+{
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_sigaction = handler;
+ sa.sa_flags = SA_SIGINFO | flags;
+ sigemptyset(&sa.sa_mask);
+ if (sigaction(sig, &sa, 0))
+ err(1, "sigaction");
+}
+
+static void clearhandler(int sig)
+{
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_handler = SIG_DFL;
+ sigemptyset(&sa.sa_mask);
+ if (sigaction(sig, &sa, 0))
+ err(1, "sigaction");
+}
+
+static sig_atomic_t got_signal;
+
+static void sighandler(int sig, siginfo_t *info, void *ctx_void)
+{
+ ucontext_t *ctx = (ucontext_t*)ctx_void;
+
+ if (ctx->uc_mcontext.gregs[REG_EFL] & X86_EFLAGS_VM ||
+ (ctx->uc_mcontext.gregs[REG_CS] & 3) != 3) {
+ printf("[FAIL]\tSignal frame should not reflect vm86 mode\n");
+ nerrs++;
+ }
+
+ const char *signame;
+ if (sig == SIGSEGV)
+ signame = "SIGSEGV";
+ else if (sig == SIGILL)
+ signame = "SIGILL";
+ else
+ signame = "unexpected signal";
+
+ printf("[INFO]\t%s: FLAGS = 0x%lx, CS = 0x%hx\n", signame,
+ (unsigned long)ctx->uc_mcontext.gregs[REG_EFL],
+ (unsigned short)ctx->uc_mcontext.gregs[REG_CS]);
+
+ got_signal = 1;
+}
+
asm (
".pushsection .rodata\n\t"
".type vmcode_bound, @object\n\t"
@@ -38,6 +87,14 @@ asm (
"int3\n\t"
"vmcode_sysenter:\n\t"
"sysenter\n\t"
+ "vmcode_syscall:\n\t"
+ "syscall\n\t"
+ "vmcode_sti:\n\t"
+ "sti\n\t"
+ "vmcode_int3:\n\t"
+ "int3\n\t"
+ "vmcode_int80:\n\t"
+ "int $0x80\n\t"
".size vmcode, . - vmcode\n\t"
"end_vmcode:\n\t"
".code32\n\t"
@@ -45,9 +102,12 @@ asm (
);
extern unsigned char vmcode[], end_vmcode[];
-extern unsigned char vmcode_bound[], vmcode_sysenter[];
+extern unsigned char vmcode_bound[], vmcode_sysenter[], vmcode_syscall[],
+ vmcode_sti[], vmcode_int3[], vmcode_int80[];
-static void do_test(struct vm86plus_struct *v86, unsigned long eip,
+/* Returns false if the test was skipped. */
+static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
+ unsigned int rettype, unsigned int retarg,
const char *text)
{
long ret;
@@ -58,7 +118,7 @@ static void do_test(struct vm86plus_struct *v86, unsigned long eip,
if (ret == -1 && errno == ENOSYS) {
printf("[SKIP]\tvm86 not supported\n");
- return;
+ return false;
}
if (VM86_TYPE(ret) == VM86_INTx) {
@@ -73,13 +133,30 @@ static void do_test(struct vm86plus_struct *v86, unsigned long eip,
else
sprintf(trapname, "%d", trapno);
- printf("[OK]\tExited vm86 mode due to #%s\n", trapname);
+ printf("[INFO]\tExited vm86 mode due to #%s\n", trapname);
} else if (VM86_TYPE(ret) == VM86_UNKNOWN) {
- printf("[OK]\tExited vm86 mode due to unhandled GP fault\n");
+ printf("[INFO]\tExited vm86 mode due to unhandled GP fault\n");
+ } else if (VM86_TYPE(ret) == VM86_TRAP) {
+ printf("[INFO]\tExited vm86 mode due to a trap (arg=%ld)\n",
+ VM86_ARG(ret));
+ } else if (VM86_TYPE(ret) == VM86_SIGNAL) {
+ printf("[INFO]\tExited vm86 mode due to a signal\n");
+ } else if (VM86_TYPE(ret) == VM86_STI) {
+ printf("[INFO]\tExited vm86 mode due to STI\n");
} else {
- printf("[OK]\tExited vm86 mode due to type %ld, arg %ld\n",
+ printf("[INFO]\tExited vm86 mode due to type %ld, arg %ld\n",
VM86_TYPE(ret), VM86_ARG(ret));
}
+
+ if (rettype == -1 ||
+ (VM86_TYPE(ret) == rettype && VM86_ARG(ret) == retarg)) {
+ printf("[OK]\tReturned correctly\n");
+ } else {
+ printf("[FAIL]\tIncorrect return reason\n");
+ nerrs++;
+ }
+
+ return true;
}
int main(void)
@@ -105,10 +182,52 @@ int main(void)
assert((v86.regs.cs & 3) == 0); /* Looks like RPL = 0 */
/* #BR -- should deliver SIG??? */
- do_test(&v86, vmcode_bound - vmcode, "#BR");
-
- /* SYSENTER -- should cause #GP or #UD depending on CPU */
- do_test(&v86, vmcode_sysenter - vmcode, "SYSENTER");
+ do_test(&v86, vmcode_bound - vmcode, VM86_INTx, 5, "#BR");
+
+ /*
+ * SYSENTER -- should cause #GP or #UD depending on CPU.
+ * Expected return type -1 means that we shouldn't validate
+ * the vm86 return value. This will avoid problems on non-SEP
+ * CPUs.
+ */
+ sethandler(SIGILL, sighandler, 0);
+ do_test(&v86, vmcode_sysenter - vmcode, -1, 0, "SYSENTER");
+ clearhandler(SIGILL);
+
+ /*
+ * SYSCALL would be a disaster in VM86 mode. Fortunately,
+ * there is no kernel that both enables SYSCALL and sets
+ * EFER.SCE, so it's #UD on all systems. But vm86 is
+ * buggy (or has a "feature"), so the SIGILL will actually
+ * be delivered.
+ */
+ sethandler(SIGILL, sighandler, 0);
+ do_test(&v86, vmcode_syscall - vmcode, VM86_SIGNAL, 0, "SYSCALL");
+ clearhandler(SIGILL);
+
+ /* STI with VIP set */
+ v86.regs.eflags |= X86_EFLAGS_VIP;
+ v86.regs.eflags &= ~X86_EFLAGS_IF;
+ do_test(&v86, vmcode_sti - vmcode, VM86_STI, 0, "STI with VIP set");
+
+ /* INT3 -- should cause #BP */
+ do_test(&v86, vmcode_int3 - vmcode, VM86_TRAP, 3, "INT3");
+
+ /* INT80 -- should exit with "INTx 0x80" */
+ v86.regs.eax = (unsigned int)-1;
+ do_test(&v86, vmcode_int80 - vmcode, VM86_INTx, 0x80, "int80");
+
+ /* Execute a null pointer */
+ v86.regs.cs = 0;
+ v86.regs.ss = 0;
+ sethandler(SIGSEGV, sighandler, 0);
+ got_signal = 0;
+ if (do_test(&v86, 0, VM86_SIGNAL, 0, "Execute null pointer") &&
+ !got_signal) {
+ printf("[FAIL]\tDid not receive SIGSEGV\n");
+ nerrs++;
+ }
+ clearhandler(SIGSEGV);
return (nerrs == 0 ? 0 : 1);
}
diff --git a/tools/testing/selftests/x86/ldt_gdt.c b/tools/testing/selftests/x86/ldt_gdt.c
new file mode 100644
index 000000000000..31a3035cd4eb
--- /dev/null
+++ b/tools/testing/selftests/x86/ldt_gdt.c
@@ -0,0 +1,576 @@
+/*
+ * ldt_gdt.c - Test cases for LDT and GDT access
+ * Copyright (c) 2015 Andrew Lutomirski
+ */
+
+#define _GNU_SOURCE
+#include <err.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <asm/ldt.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdbool.h>
+#include <pthread.h>
+#include <sched.h>
+#include <linux/futex.h>
+
+#define AR_ACCESSED (1<<8)
+
+#define AR_TYPE_RODATA (0 * (1<<9))
+#define AR_TYPE_RWDATA (1 * (1<<9))
+#define AR_TYPE_RODATA_EXPDOWN (2 * (1<<9))
+#define AR_TYPE_RWDATA_EXPDOWN (3 * (1<<9))
+#define AR_TYPE_XOCODE (4 * (1<<9))
+#define AR_TYPE_XRCODE (5 * (1<<9))
+#define AR_TYPE_XOCODE_CONF (6 * (1<<9))
+#define AR_TYPE_XRCODE_CONF (7 * (1<<9))
+
+#define AR_DPL3 (3 * (1<<13))
+
+#define AR_S (1 << 12)
+#define AR_P (1 << 15)
+#define AR_AVL (1 << 20)
+#define AR_L (1 << 21)
+#define AR_DB (1 << 22)
+#define AR_G (1 << 23)
+
+static int nerrs;
+
+static void check_invalid_segment(uint16_t index, int ldt)
+{
+ uint32_t has_limit = 0, has_ar = 0, limit, ar;
+ uint32_t selector = (index << 3) | (ldt << 2) | 3;
+
+ asm ("lsl %[selector], %[limit]\n\t"
+ "jnz 1f\n\t"
+ "movl $1, %[has_limit]\n\t"
+ "1:"
+ : [limit] "=r" (limit), [has_limit] "+rm" (has_limit)
+ : [selector] "r" (selector));
+ asm ("larl %[selector], %[ar]\n\t"
+ "jnz 1f\n\t"
+ "movl $1, %[has_ar]\n\t"
+ "1:"
+ : [ar] "=r" (ar), [has_ar] "+rm" (has_ar)
+ : [selector] "r" (selector));
+
+ if (has_limit || has_ar) {
+ printf("[FAIL]\t%s entry %hu is valid but should be invalid\n",
+ (ldt ? "LDT" : "GDT"), index);
+ nerrs++;
+ } else {
+ printf("[OK]\t%s entry %hu is invalid\n",
+ (ldt ? "LDT" : "GDT"), index);
+ }
+}
+
+static void check_valid_segment(uint16_t index, int ldt,
+ uint32_t expected_ar, uint32_t expected_limit,
+ bool verbose)
+{
+ uint32_t has_limit = 0, has_ar = 0, limit, ar;
+ uint32_t selector = (index << 3) | (ldt << 2) | 3;
+
+ asm ("lsl %[selector], %[limit]\n\t"
+ "jnz 1f\n\t"
+ "movl $1, %[has_limit]\n\t"
+ "1:"
+ : [limit] "=r" (limit), [has_limit] "+rm" (has_limit)
+ : [selector] "r" (selector));
+ asm ("larl %[selector], %[ar]\n\t"
+ "jnz 1f\n\t"
+ "movl $1, %[has_ar]\n\t"
+ "1:"
+ : [ar] "=r" (ar), [has_ar] "+rm" (has_ar)
+ : [selector] "r" (selector));
+
+ if (!has_limit || !has_ar) {
+ printf("[FAIL]\t%s entry %hu is invalid but should be valid\n",
+ (ldt ? "LDT" : "GDT"), index);
+ nerrs++;
+ return;
+ }
+
+ if (ar != expected_ar) {
+ printf("[FAIL]\t%s entry %hu has AR 0x%08X but expected 0x%08X\n",
+ (ldt ? "LDT" : "GDT"), index, ar, expected_ar);
+ nerrs++;
+ } else if (limit != expected_limit) {
+ printf("[FAIL]\t%s entry %hu has limit 0x%08X but expected 0x%08X\n",
+ (ldt ? "LDT" : "GDT"), index, limit, expected_limit);
+ nerrs++;
+ } else if (verbose) {
+ printf("[OK]\t%s entry %hu has AR 0x%08X and limit 0x%08X\n",
+ (ldt ? "LDT" : "GDT"), index, ar, limit);
+ }
+}
+
+static bool install_valid_mode(const struct user_desc *desc, uint32_t ar,
+ bool oldmode)
+{
+ int ret = syscall(SYS_modify_ldt, oldmode ? 1 : 0x11,
+ desc, sizeof(*desc));
+ if (ret < -1)
+ errno = -ret;
+ if (ret == 0) {
+ uint32_t limit = desc->limit;
+ if (desc->limit_in_pages)
+ limit = (limit << 12) + 4095;
+ check_valid_segment(desc->entry_number, 1, ar, limit, true);
+ return true;
+ } else if (errno == ENOSYS) {
+ printf("[OK]\tmodify_ldt returned -ENOSYS\n");
+ return false;
+ } else {
+ if (desc->seg_32bit) {
+ printf("[FAIL]\tUnexpected modify_ldt failure %d\n",
+ errno);
+ nerrs++;
+ return false;
+ } else {
+ printf("[OK]\tmodify_ldt rejected 16 bit segment\n");
+ return false;
+ }
+ }
+}
+
+static bool install_valid(const struct user_desc *desc, uint32_t ar)
+{
+ return install_valid_mode(desc, ar, false);
+}
+
+static void install_invalid(const struct user_desc *desc, bool oldmode)
+{
+ int ret = syscall(SYS_modify_ldt, oldmode ? 1 : 0x11,
+ desc, sizeof(*desc));
+ if (ret < -1)
+ errno = -ret;
+ if (ret == 0) {
+ check_invalid_segment(desc->entry_number, 1);
+ } else if (errno == ENOSYS) {
+ printf("[OK]\tmodify_ldt returned -ENOSYS\n");
+ } else {
+ if (desc->seg_32bit) {
+ printf("[FAIL]\tUnexpected modify_ldt failure %d\n",
+ errno);
+ nerrs++;
+ } else {
+ printf("[OK]\tmodify_ldt rejected 16 bit segment\n");
+ }
+ }
+}
+
+static int safe_modify_ldt(int func, struct user_desc *ptr,
+ unsigned long bytecount)
+{
+ int ret = syscall(SYS_modify_ldt, 0x11, ptr, bytecount);
+ if (ret < -1)
+ errno = -ret;
+ return ret;
+}
+
+static void fail_install(struct user_desc *desc)
+{
+ if (safe_modify_ldt(0x11, desc, sizeof(*desc)) == 0) {
+ printf("[FAIL]\tmodify_ldt accepted a bad descriptor\n");
+ nerrs++;
+ } else if (errno == ENOSYS) {
+ printf("[OK]\tmodify_ldt returned -ENOSYS\n");
+ } else {
+ printf("[OK]\tmodify_ldt failure %d\n", errno);
+ }
+}
+
+static void do_simple_tests(void)
+{
+ struct user_desc desc = {
+ .entry_number = 0,
+ .base_addr = 0,
+ .limit = 10,
+ .seg_32bit = 1,
+ .contents = 2, /* Code, not conforming */
+ .read_exec_only = 0,
+ .limit_in_pages = 0,
+ .seg_not_present = 0,
+ .useable = 0
+ };
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE | AR_S | AR_P | AR_DB);
+
+ desc.limit_in_pages = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_P | AR_DB | AR_G);
+
+ check_invalid_segment(1, 1);
+
+ desc.entry_number = 2;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_P | AR_DB | AR_G);
+
+ check_invalid_segment(1, 1);
+
+ desc.base_addr = 0xf0000000;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_P | AR_DB | AR_G);
+
+ desc.useable = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_P | AR_DB | AR_G | AR_AVL);
+
+ desc.seg_not_present = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_DB | AR_G | AR_AVL);
+
+ desc.seg_32bit = 0;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_G | AR_AVL);
+
+ desc.seg_32bit = 1;
+ desc.contents = 0;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA |
+ AR_S | AR_DB | AR_G | AR_AVL);
+
+ desc.read_exec_only = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA |
+ AR_S | AR_DB | AR_G | AR_AVL);
+
+ desc.contents = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA_EXPDOWN |
+ AR_S | AR_DB | AR_G | AR_AVL);
+
+ desc.read_exec_only = 0;
+ desc.limit_in_pages = 0;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA_EXPDOWN |
+ AR_S | AR_DB | AR_AVL);
+
+ desc.contents = 3;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE_CONF |
+ AR_S | AR_DB | AR_AVL);
+
+ desc.read_exec_only = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XOCODE_CONF |
+ AR_S | AR_DB | AR_AVL);
+
+ desc.read_exec_only = 0;
+ desc.contents = 2;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE |
+ AR_S | AR_DB | AR_AVL);
+
+ desc.read_exec_only = 1;
+
+#ifdef __x86_64__
+ desc.lm = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XOCODE |
+ AR_S | AR_DB | AR_AVL);
+ desc.lm = 0;
+#endif
+
+ bool entry1_okay = install_valid(&desc, AR_DPL3 | AR_TYPE_XOCODE |
+ AR_S | AR_DB | AR_AVL);
+
+ if (entry1_okay) {
+ printf("[RUN]\tTest fork\n");
+ pid_t child = fork();
+ if (child == 0) {
+ nerrs = 0;
+ check_valid_segment(desc.entry_number, 1,
+ AR_DPL3 | AR_TYPE_XOCODE |
+ AR_S | AR_DB | AR_AVL, desc.limit,
+ true);
+ check_invalid_segment(1, 1);
+ exit(nerrs ? 1 : 0);
+ } else {
+ int status;
+ if (waitpid(child, &status, 0) != child ||
+ !WIFEXITED(status)) {
+ printf("[FAIL]\tChild died\n");
+ nerrs++;
+ } else if (WEXITSTATUS(status) != 0) {
+ printf("[FAIL]\tChild failed\n");
+ nerrs++;
+ } else {
+ printf("[OK]\tChild succeeded\n");
+ }
+ }
+
+ printf("[RUN]\tTest size\n");
+ int i;
+ for (i = 0; i < 8192; i++) {
+ desc.entry_number = i;
+ desc.limit = i;
+ if (safe_modify_ldt(0x11, &desc, sizeof(desc)) != 0) {
+ printf("[FAIL]\tFailed to install entry %d\n", i);
+ nerrs++;
+ break;
+ }
+ }
+ for (int j = 0; j < i; j++) {
+ check_valid_segment(j, 1, AR_DPL3 | AR_TYPE_XOCODE |
+ AR_S | AR_DB | AR_AVL, j, false);
+ }
+ printf("[DONE]\tSize test\n");
+ } else {
+ printf("[SKIP]\tSkipping fork and size tests because we have no LDT\n");
+ }
+
+ /* Test entry_number too high. */
+ desc.entry_number = 8192;
+ fail_install(&desc);
+
+ /* Test deletion and actions mistakeable for deletion. */
+ memset(&desc, 0, sizeof(desc));
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P);
+
+ desc.seg_not_present = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S);
+
+ desc.seg_not_present = 0;
+ desc.read_exec_only = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA | AR_S | AR_P);
+
+ desc.read_exec_only = 0;
+ desc.seg_not_present = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S);
+
+ desc.read_exec_only = 1;
+ desc.limit = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA | AR_S);
+
+ desc.limit = 0;
+ desc.base_addr = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA | AR_S);
+
+ desc.base_addr = 0;
+ install_invalid(&desc, false);
+
+ desc.seg_not_present = 0;
+ desc.read_exec_only = 0;
+ desc.seg_32bit = 1;
+ install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P | AR_DB);
+ install_invalid(&desc, true);
+}
+
+/*
+ * 0: thread is idle
+ * 1: thread armed
+ * 2: thread should clear LDT entry 0
+ * 3: thread should exit
+ */
+static volatile unsigned int ftx;
+
+static void *threadproc(void *ctx)
+{
+ cpu_set_t cpuset;
+ CPU_ZERO(&cpuset);
+ CPU_SET(1, &cpuset);
+ if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0)
+ err(1, "sched_setaffinity to CPU 1"); /* should never fail */
+
+ while (1) {
+ syscall(SYS_futex, &ftx, FUTEX_WAIT, 0, NULL, NULL, 0);
+ while (ftx != 2) {
+ if (ftx >= 3)
+ return NULL;
+ }
+
+ /* clear LDT entry 0 */
+ const struct user_desc desc = {};
+ if (syscall(SYS_modify_ldt, 1, &desc, sizeof(desc)) != 0)
+ err(1, "modify_ldt");
+
+ /* If ftx == 2, set it to zero. If ftx == 100, quit. */
+ unsigned int x = -2;
+ asm volatile ("lock xaddl %[x], %[ftx]" :
+ [x] "+r" (x), [ftx] "+m" (ftx));
+ if (x != 2)
+ return NULL;
+ }
+}
+
+static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
+ int flags)
+{
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_sigaction = handler;
+ sa.sa_flags = SA_SIGINFO | flags;
+ sigemptyset(&sa.sa_mask);
+ if (sigaction(sig, &sa, 0))
+ err(1, "sigaction");
+
+}
+
+static jmp_buf jmpbuf;
+
+static void sigsegv(int sig, siginfo_t *info, void *ctx_void)
+{
+ siglongjmp(jmpbuf, 1);
+}
+
+static void do_multicpu_tests(void)
+{
+ cpu_set_t cpuset;
+ pthread_t thread;
+ int failures = 0, iters = 5, i;
+ unsigned short orig_ss;
+
+ CPU_ZERO(&cpuset);
+ CPU_SET(1, &cpuset);
+ if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) {
+ printf("[SKIP]\tCannot set affinity to CPU 1\n");
+ return;
+ }
+
+ CPU_ZERO(&cpuset);
+ CPU_SET(0, &cpuset);
+ if (sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0) {
+ printf("[SKIP]\tCannot set affinity to CPU 0\n");
+ return;
+ }
+
+ sethandler(SIGSEGV, sigsegv, 0);
+#ifdef __i386__
+ /* True 32-bit kernels send SIGILL instead of SIGSEGV on IRET faults. */
+ sethandler(SIGILL, sigsegv, 0);
+#endif
+
+ printf("[RUN]\tCross-CPU LDT invalidation\n");
+
+ if (pthread_create(&thread, 0, threadproc, 0) != 0)
+ err(1, "pthread_create");
+
+ asm volatile ("mov %%ss, %0" : "=rm" (orig_ss));
+
+ for (i = 0; i < 5; i++) {
+ if (sigsetjmp(jmpbuf, 1) != 0)
+ continue;
+
+ /* Make sure the thread is ready after the last test. */
+ while (ftx != 0)
+ ;
+
+ struct user_desc desc = {
+ .entry_number = 0,
+ .base_addr = 0,
+ .limit = 0xfffff,
+ .seg_32bit = 1,
+ .contents = 0, /* Data */
+ .read_exec_only = 0,
+ .limit_in_pages = 1,
+ .seg_not_present = 0,
+ .useable = 0
+ };
+
+ if (safe_modify_ldt(0x11, &desc, sizeof(desc)) != 0) {
+ if (errno != ENOSYS)
+ err(1, "modify_ldt");
+ printf("[SKIP]\tmodify_ldt unavailable\n");
+ break;
+ }
+
+ /* Arm the thread. */
+ ftx = 1;
+ syscall(SYS_futex, &ftx, FUTEX_WAKE, 0, NULL, NULL, 0);
+
+ asm volatile ("mov %0, %%ss" : : "r" (0x7));
+
+ /* Go! */
+ ftx = 2;
+
+ while (ftx != 0)
+ ;
+
+ /*
+ * On success, modify_ldt will segfault us synchronously,
+ * and we'll escape via siglongjmp.
+ */
+
+ failures++;
+ asm volatile ("mov %0, %%ss" : : "rm" (orig_ss));
+ };
+
+ ftx = 100; /* Kill the thread. */
+ syscall(SYS_futex, &ftx, FUTEX_WAKE, 0, NULL, NULL, 0);
+
+ if (pthread_join(thread, NULL) != 0)
+ err(1, "pthread_join");
+
+ if (failures) {
+ printf("[FAIL]\t%d of %d iterations failed\n", failures, iters);
+ nerrs++;
+ } else {
+ printf("[OK]\tAll %d iterations succeeded\n", iters);
+ }
+}
+
+static int finish_exec_test(void)
+{
+ /*
+ * In a sensible world, this would be check_invalid_segment(0, 1);
+ * For better or for worse, though, the LDT is inherited across exec.
+ * We can probably change this safely, but for now we test it.
+ */
+ check_valid_segment(0, 1,
+ AR_DPL3 | AR_TYPE_XRCODE | AR_S | AR_P | AR_DB,
+ 42, true);
+
+ return nerrs ? 1 : 0;
+}
+
+static void do_exec_test(void)
+{
+ printf("[RUN]\tTest exec\n");
+
+ struct user_desc desc = {
+ .entry_number = 0,
+ .base_addr = 0,
+ .limit = 42,
+ .seg_32bit = 1,
+ .contents = 2, /* Code, not conforming */
+ .read_exec_only = 0,
+ .limit_in_pages = 0,
+ .seg_not_present = 0,
+ .useable = 0
+ };
+ install_valid(&desc, AR_DPL3 | AR_TYPE_XRCODE | AR_S | AR_P | AR_DB);
+
+ pid_t child = fork();
+ if (child == 0) {
+ execl("/proc/self/exe", "ldt_gdt_test_exec", NULL);
+ printf("[FAIL]\tCould not exec self\n");
+ exit(1); /* exec failed */
+ } else {
+ int status;
+ if (waitpid(child, &status, 0) != child ||
+ !WIFEXITED(status)) {
+ printf("[FAIL]\tChild died\n");
+ nerrs++;
+ } else if (WEXITSTATUS(status) != 0) {
+ printf("[FAIL]\tChild failed\n");
+ nerrs++;
+ } else {
+ printf("[OK]\tChild succeeded\n");
+ }
+ }
+}
+
+int main(int argc, char **argv)
+{
+ if (argc == 1 && !strcmp(argv[0], "ldt_gdt_test_exec"))
+ return finish_exec_test();
+
+ do_simple_tests();
+
+ do_multicpu_tests();
+
+ do_exec_test();
+
+ return nerrs ? 1 : 0;
+}
diff --git a/tools/testing/selftests/x86/syscall_arg_fault.c b/tools/testing/selftests/x86/syscall_arg_fault.c
new file mode 100644
index 000000000000..7db4fc9fa09f
--- /dev/null
+++ b/tools/testing/selftests/x86/syscall_arg_fault.c
@@ -0,0 +1,130 @@
+/*
+ * syscall_arg_fault.c - tests faults 32-bit fast syscall stack args
+ * Copyright (c) 2015 Andrew Lutomirski
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/signal.h>
+#include <sys/ucontext.h>
+#include <err.h>
+#include <setjmp.h>
+#include <errno.h>
+
+/* Our sigaltstack scratch space. */
+static unsigned char altstack_data[SIGSTKSZ];
+
+static void sethandler(int sig, void (*handler)(int, siginfo_t *, void *),
+ int flags)
+{
+ struct sigaction sa;
+ memset(&sa, 0, sizeof(sa));
+ sa.sa_sigaction = handler;
+ sa.sa_flags = SA_SIGINFO | flags;
+ sigemptyset(&sa.sa_mask);
+ if (sigaction(sig, &sa, 0))
+ err(1, "sigaction");
+}
+
+static volatile sig_atomic_t sig_traps;
+static sigjmp_buf jmpbuf;
+
+static volatile sig_atomic_t n_errs;
+
+static void sigsegv(int sig, siginfo_t *info, void *ctx_void)
+{
+ ucontext_t *ctx = (ucontext_t*)ctx_void;
+
+ if (ctx->uc_mcontext.gregs[REG_EAX] != -EFAULT) {
+ printf("[FAIL]\tAX had the wrong value: 0x%x\n",
+ ctx->uc_mcontext.gregs[REG_EAX]);
+ n_errs++;
+ } else {
+ printf("[OK]\tSeems okay\n");
+ }
+
+ siglongjmp(jmpbuf, 1);
+}
+
+static void sigill(int sig, siginfo_t *info, void *ctx_void)
+{
+ printf("[SKIP]\tIllegal instruction\n");
+ siglongjmp(jmpbuf, 1);
+}
+
+int main()
+{
+ stack_t stack = {
+ .ss_sp = altstack_data,
+ .ss_size = SIGSTKSZ,
+ };
+ if (sigaltstack(&stack, NULL) != 0)
+ err(1, "sigaltstack");
+
+ sethandler(SIGSEGV, sigsegv, SA_ONSTACK);
+ sethandler(SIGILL, sigill, SA_ONSTACK);
+
+ /*
+ * Exercise another nasty special case. The 32-bit SYSCALL
+ * and SYSENTER instructions (even in compat mode) each
+ * clobber one register. A Linux system call has a syscall
+ * number and six arguments, and the user stack pointer
+ * needs to live in some register on return. That means
+ * that we need eight registers, but SYSCALL and SYSENTER
+ * only preserve seven registers. As a result, one argument
+ * ends up on the stack. The stack is user memory, which
+ * means that the kernel can fail to read it.
+ *
+ * The 32-bit fast system calls don't have a defined ABI:
+ * we're supposed to invoke them through the vDSO. So we'll
+ * fudge it: we set all regs to invalid pointer values and
+ * invoke the entry instruction. The return will fail no
+ * matter what, and we completely lose our program state,
+ * but we can fix it up with a signal handler.
+ */
+
+ printf("[RUN]\tSYSENTER with invalid state\n");
+ if (sigsetjmp(jmpbuf, 1) == 0) {
+ asm volatile (
+ "movl $-1, %%eax\n\t"
+ "movl $-1, %%ebx\n\t"
+ "movl $-1, %%ecx\n\t"
+ "movl $-1, %%edx\n\t"
+ "movl $-1, %%esi\n\t"
+ "movl $-1, %%edi\n\t"
+ "movl $-1, %%ebp\n\t"
+ "movl $-1, %%esp\n\t"
+ "sysenter"
+ : : : "memory", "flags");
+ }
+
+ printf("[RUN]\tSYSCALL with invalid state\n");
+ if (sigsetjmp(jmpbuf, 1) == 0) {
+ asm volatile (
+ "movl $-1, %%eax\n\t"
+ "movl $-1, %%ebx\n\t"
+ "movl $-1, %%ecx\n\t"
+ "movl $-1, %%edx\n\t"
+ "movl $-1, %%esi\n\t"
+ "movl $-1, %%edi\n\t"
+ "movl $-1, %%ebp\n\t"
+ "movl $-1, %%esp\n\t"
+ "syscall\n\t"
+ "pushl $0" /* make sure we segfault cleanly */
+ : : : "memory", "flags");
+ }
+
+ return 0;
+}
diff --git a/tools/testing/selftests/x86/syscall_nt.c b/tools/testing/selftests/x86/syscall_nt.c
new file mode 100644
index 000000000000..60c06af4646a
--- /dev/null
+++ b/tools/testing/selftests/x86/syscall_nt.c
@@ -0,0 +1,54 @@
+/*
+ * syscall_nt.c - checks syscalls with NT set
+ * Copyright (c) 2014-2015 Andrew Lutomirski
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Some obscure user-space code requires the ability to make system calls
+ * with FLAGS.NT set. Make sure it works.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <asm/processor-flags.h>
+
+#ifdef __x86_64__
+# define WIDTH "q"
+#else
+# define WIDTH "l"
+#endif
+
+static unsigned long get_eflags(void)
+{
+ unsigned long eflags;
+ asm volatile ("pushf" WIDTH "\n\tpop" WIDTH " %0" : "=rm" (eflags));
+ return eflags;
+}
+
+static void set_eflags(unsigned long eflags)
+{
+ asm volatile ("push" WIDTH " %0\n\tpopf" WIDTH
+ : : "rm" (eflags) : "flags");
+}
+
+int main()
+{
+ printf("[RUN]\tSet NT and issue a syscall\n");
+ set_eflags(get_eflags() | X86_EFLAGS_NT);
+ syscall(SYS_getpid);
+ if (get_eflags() & X86_EFLAGS_NT) {
+ printf("[OK]\tThe syscall worked and NT is still set\n");
+ return 0;
+ } else {
+ printf("[FAIL]\tThe syscall worked but NT was cleared\n");
+ return 1;
+ }
+}