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perf tools: Add support for PERF_RECORD_ITRACE_START

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Add support for the PERF_RECORD_ITRACE_START event type.  This event can
be used to determine the pid and tid that are running when Instruction
Tracing starts.  Generally that information would come from a
sched_switch event but, at the start, no sched_switch events may yet
have been recorded.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1430404667-10593-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2015-04-30 17:37:30 +03:00
committed by Arnaldo Carvalho de Melo
parent 4a96f7a02e
commit 0ad21f6869
7 changed files with 59 additions and 0 deletions
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11
tools/perf/util/event.h
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@@ -330,6 +330,11 @@ struct aux_event {
u64 flags;
};
struct itrace_start_event {
struct perf_event_header header;
u32 pid, tid;
};
union perf_event {
struct perf_event_header header;
struct mmap_event mmap;
@@ -349,6 +354,7 @@ union perf_event {
struct auxtrace_event auxtrace;
struct auxtrace_error_event auxtrace_error;
struct aux_event aux;
struct itrace_start_event itrace_start;
};
void perf_event__print_totals(void);
@@ -388,6 +394,10 @@ int perf_event__process_aux(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine);
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_mmap(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
@@ -446,6 +456,7 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
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(union perf_event *event, FILE *fp);
u64 kallsyms__get_function_start(const char *kallsyms_filename,