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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-07-14 13:02:28 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-07-16 17:57:34 -0300 |
| commit | 39e09d40bea440d9cfe645b55aff251294318669 (patch) | |
| tree | fee10bc37b186bc04999ea6fced578b4d0011c89 /tools | |
| parent | 022c50d09c2c2bc31506ad16c4bcba7fb418ce34 (diff) | |
| download | linux-39e09d40bea440d9cfe645b55aff251294318669.tar.gz linux-39e09d40bea440d9cfe645b55aff251294318669.tar.bz2 linux-39e09d40bea440d9cfe645b55aff251294318669.zip | |
perf record: Select comm_exec flag if supported
The comm_exec flag on the attribute can later be found in the perf.data
file allowing a tool to know in advance if the captured data has the
flag.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1405332185-4050-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/util/record.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c index 049e0a09ccd3..165723152cfb 100644 --- a/tools/perf/util/record.c +++ b/tools/perf/util/record.c @@ -69,15 +69,26 @@ static void perf_probe_sample_identifier(struct perf_evsel *evsel) evsel->attr.sample_type |= PERF_SAMPLE_IDENTIFIER; } +static void perf_probe_comm_exec(struct perf_evsel *evsel) +{ + evsel->attr.comm_exec = 1; +} + bool perf_can_sample_identifier(void) { return perf_probe_api(perf_probe_sample_identifier); } +static bool perf_can_comm_exec(void) +{ + return perf_probe_api(perf_probe_comm_exec); +} + void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) { struct perf_evsel *evsel; bool use_sample_identifier = false; + bool use_comm_exec; /* * Set the evsel leader links before we configure attributes, @@ -89,8 +100,13 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) if (evlist->cpus->map[0] < 0) opts->no_inherit = true; - evlist__for_each(evlist, evsel) + use_comm_exec = perf_can_comm_exec(); + + evlist__for_each(evlist, evsel) { perf_evsel__config(evsel, opts); + if (!evsel->idx && use_comm_exec) + evsel->attr.comm_exec = 1; + } if (evlist->nr_entries > 1) { struct perf_evsel *first = perf_evlist__first(evlist); |