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-rw-r--r--tools/perf/config/Makefile46
1 files changed, 35 insertions, 11 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index ee21fa95ebcf..802cf544202b 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -34,6 +34,14 @@ ifeq ($(ARCH),arm)
LIBUNWIND_LIBS = -lunwind -lunwind-arm
endif
+# So far there's only x86 libdw unwind support merged in perf.
+# Disable it on all other architectures in case libdw unwind
+# support is detected in system. Add supported architectures
+# to the check.
+ifneq ($(ARCH),x86)
+ NO_LIBDW_DWARF_UNWIND := 1
+endif
+
ifeq ($(LIBUNWIND_LIBS),)
NO_LIBUNWIND := 1
else
@@ -109,6 +117,10 @@ CFLAGS += -Wall
CFLAGS += -Wextra
CFLAGS += -std=gnu99
+# Enforce a non-executable stack, as we may regress (again) in the future by
+# adding assembler files missing the .GNU-stack linker note.
+LDFLAGS += -Wl,-z,noexecstack
+
EXTLIBS = -lelf -lpthread -lrt -lm -ldl
ifneq ($(OUTPUT),)
@@ -186,7 +198,10 @@ VF_FEATURE_TESTS = \
stackprotector-all \
timerfd \
libunwind-debug-frame \
- bionic
+ bionic \
+ liberty \
+ liberty-z \
+ cplus-demangle
# Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
# If in the future we need per-feature checks/flags for features not
@@ -504,7 +519,21 @@ else
endif
ifeq ($(feature-libbfd), 1)
- EXTLIBS += -lbfd -lz -liberty
+ EXTLIBS += -lbfd
+
+ # call all detections now so we get correct
+ # status in VF output
+ $(call feature_check,liberty)
+ $(call feature_check,liberty-z)
+ $(call feature_check,cplus-demangle)
+
+ ifeq ($(feature-liberty), 1)
+ EXTLIBS += -liberty
+ else
+ ifeq ($(feature-liberty-z), 1)
+ EXTLIBS += -liberty -lz
+ endif
+ endif
endif
ifdef NO_DEMANGLE
@@ -515,15 +544,10 @@ else
CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
else
ifneq ($(feature-libbfd), 1)
- $(call feature_check,liberty)
- ifeq ($(feature-liberty), 1)
- EXTLIBS += -lbfd -liberty
- else
- $(call feature_check,liberty-z)
- ifeq ($(feature-liberty-z), 1)
- EXTLIBS += -lbfd -liberty -lz
- else
- $(call feature_check,cplus-demangle)
+ ifneq ($(feature-liberty), 1)
+ ifneq ($(feature-liberty-z), 1)
+ # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
+ # or any of 'bfd iberty z' trinity
ifeq ($(feature-cplus-demangle), 1)
EXTLIBS += -liberty
CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT