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Diffstat (limited to 'tools/perf/util/data_map.c')
-rw-r--r--tools/perf/util/data_map.c163
1 files changed, 62 insertions, 101 deletions
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
index 59b65d0bd7c1..b557b836de3d 100644
--- a/tools/perf/util/data_map.c
+++ b/tools/perf/util/data_map.c
@@ -1,20 +1,17 @@
-#include "data_map.h"
#include "symbol.h"
#include "util.h"
#include "debug.h"
+#include "thread.h"
+#include "session.h"
-
-static struct perf_file_handler *curr_handler;
-static unsigned long mmap_window = 32;
-static char __cwd[PATH_MAX];
-
-static int process_event_stub(event_t *event __used)
+static int process_event_stub(event_t *event __used,
+ struct perf_session *session __used)
{
dump_printf(": unhandled!\n");
return 0;
}
-void register_perf_file_handler(struct perf_file_handler *handler)
+static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
{
if (!handler->process_sample_event)
handler->process_sample_event = process_event_stub;
@@ -34,8 +31,6 @@ void register_perf_file_handler(struct perf_file_handler *handler)
handler->process_throttle_event = process_event_stub;
if (!handler->process_unthrottle_event)
handler->process_unthrottle_event = process_event_stub;
-
- curr_handler = handler;
}
static const char *event__name[] = {
@@ -61,8 +56,9 @@ void event__print_totals(void)
event__name[i], event__total[i]);
}
-static int
-process_event(event_t *event, unsigned long offset, unsigned long head)
+static int process_event(event_t *event, struct perf_session *session,
+ struct perf_event_ops *ops,
+ unsigned long offset, unsigned long head)
{
trace_event(event);
@@ -77,25 +73,25 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
switch (event->header.type) {
case PERF_RECORD_SAMPLE:
- return curr_handler->process_sample_event(event);
+ return ops->process_sample_event(event, session);
case PERF_RECORD_MMAP:
- return curr_handler->process_mmap_event(event);
+ return ops->process_mmap_event(event, session);
case PERF_RECORD_COMM:
- return curr_handler->process_comm_event(event);
+ return ops->process_comm_event(event, session);
case PERF_RECORD_FORK:
- return curr_handler->process_fork_event(event);
+ return ops->process_fork_event(event, session);
case PERF_RECORD_EXIT:
- return curr_handler->process_exit_event(event);
+ return ops->process_exit_event(event, session);
case PERF_RECORD_LOST:
- return curr_handler->process_lost_event(event);
+ return ops->process_lost_event(event, session);
case PERF_RECORD_READ:
- return curr_handler->process_read_event(event);
+ return ops->process_read_event(event, session);
case PERF_RECORD_THROTTLE:
- return curr_handler->process_throttle_event(event);
+ return ops->process_throttle_event(event, session);
case PERF_RECORD_UNTHROTTLE:
- return curr_handler->process_unthrottle_event(event);
+ return ops->process_unthrottle_event(event, session);
default:
- curr_handler->total_unknown++;
+ ops->total_unknown++;
return -1;
}
}
@@ -129,88 +125,58 @@ out:
return err;
}
-int mmap_dispatch_perf_file(struct perf_header **pheader,
- const char *input_name,
- int force,
- int full_paths,
- int *cwdlen,
- char **cwd)
+static struct thread *perf_session__register_idle_thread(struct perf_session *self)
+{
+ struct thread *thread = perf_session__findnew(self, 0);
+
+ if (!thread || thread__set_comm(thread, "swapper")) {
+ pr_err("problem inserting idle task.\n");
+ thread = NULL;
+ }
+
+ return thread;
+}
+
+int perf_session__process_events(struct perf_session *self,
+ struct perf_event_ops *ops)
{
int err;
- struct perf_header *header;
unsigned long head, shift;
unsigned long offset = 0;
- struct stat input_stat;
size_t page_size;
- u64 sample_type;
event_t *event;
uint32_t size;
- int input;
char *buf;
- if (curr_handler == NULL) {
- pr_debug("Forgot to register perf file handler\n");
- return -EINVAL;
- }
-
- page_size = getpagesize();
-
- input = open(input_name, O_RDONLY);
- if (input < 0) {
- pr_err("Failed to open file: %s", input_name);
- if (!strcmp(input_name, "perf.data"))
- pr_err(" (try 'perf record' first)");
- pr_err("\n");
- return -errno;
- }
-
- if (fstat(input, &input_stat) < 0) {
- pr_err("failed to stat file");
- err = -errno;
- goto out_close;
- }
-
- err = -EACCES;
- if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
- pr_err("file: %s not owned by current user or root\n",
- input_name);
- goto out_close;
- }
-
- if (input_stat.st_size == 0) {
- pr_info("zero-sized file, nothing to do!\n");
- goto done;
- }
+ if (perf_session__register_idle_thread(self) == NULL)
+ return -ENOMEM;
- err = -ENOMEM;
- header = perf_header__new();
- if (header == NULL)
- goto out_close;
+ perf_event_ops__fill_defaults(ops);
- err = perf_header__read(header, input);
- if (err < 0)
- goto out_delete;
- *pheader = header;
- head = header->data_offset;
+ page_size = getpagesize();
- sample_type = perf_header__sample_type(header);
+ head = self->header.data_offset;
+ self->sample_type = perf_header__sample_type(&self->header);
err = -EINVAL;
- if (curr_handler->sample_type_check &&
- curr_handler->sample_type_check(sample_type) < 0)
- goto out_delete;
+ if (ops->sample_type_check && ops->sample_type_check(self) < 0)
+ goto out_err;
- if (!full_paths) {
- if (getcwd(__cwd, sizeof(__cwd)) == NULL) {
- pr_err("failed to get the current directory\n");
+ if (!ops->full_paths) {
+ char bf[PATH_MAX];
+
+ if (getcwd(bf, sizeof(bf)) == NULL) {
err = -errno;
- goto out_delete;
+out_getcwd_err:
+ pr_err("failed to get the current directory\n");
+ goto out_err;
+ }
+ self->cwd = strdup(bf);
+ if (self->cwd == NULL) {
+ err = -ENOMEM;
+ goto out_getcwd_err;
}
- *cwd = __cwd;
- *cwdlen = strlen(*cwd);
- } else {
- *cwd = NULL;
- *cwdlen = 0;
+ self->cwdlen = strlen(self->cwd);
}
shift = page_size * (head / page_size);
@@ -218,12 +184,12 @@ int mmap_dispatch_perf_file(struct perf_header **pheader,
head -= shift;
remap:
- buf = mmap(NULL, page_size * mmap_window, PROT_READ,
- MAP_SHARED, input, offset);
+ buf = mmap(NULL, page_size * self->mmap_window, PROT_READ,
+ MAP_SHARED, self->fd, offset);
if (buf == MAP_FAILED) {
pr_err("failed to mmap file\n");
err = -errno;
- goto out_delete;
+ goto out_err;
}
more:
@@ -233,12 +199,12 @@ more:
if (!size)
size = 8;
- if (head + event->header.size >= page_size * mmap_window) {
+ if (head + event->header.size >= page_size * self->mmap_window) {
int munmap_ret;
shift = page_size * (head / page_size);
- munmap_ret = munmap(buf, page_size * mmap_window);
+ munmap_ret = munmap(buf, page_size * self->mmap_window);
assert(munmap_ret == 0);
offset += shift;
@@ -253,7 +219,7 @@ more:
(void *)(long)event->header.size,
event->header.type);
- if (!size || process_event(event, offset, head) < 0) {
+ if (!size || process_event(event, self, ops, offset, head) < 0) {
dump_printf("%p [%p]: skipping unknown header type: %d\n",
(void *)(offset + head),
@@ -273,19 +239,14 @@ more:
head += size;
- if (offset + head >= header->data_offset + header->data_size)
+ if (offset + head >= self->header.data_offset + self->header.data_size)
goto done;
- if (offset + head < (unsigned long)input_stat.st_size)
+ if (offset + head < self->size)
goto more;
done:
err = 0;
-out_close:
- close(input);
-
+out_err:
return err;
-out_delete:
- perf_header__delete(header);
- goto out_close;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-06-20 00:29:34 +0000