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| author | Jiri Olsa <jolsa@kernel.org> | 2015-10-25 15:51:32 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-12-17 14:55:43 -0300 |
| commit | 0ea0e3558607626196eb09ace796aac585e61f5c (patch) | |
| tree | c0e93239cd4573c021c7d8a3cda695fc5cdd6ecc /tools/perf | |
| parent | 5796f8f073fe50171376f058376dde93ec5f3785 (diff) | |
| download | linux-stable-0ea0e3558607626196eb09ace796aac585e61f5c.tar.gz linux-stable-0ea0e3558607626196eb09ace796aac585e61f5c.tar.bz2 linux-stable-0ea0e3558607626196eb09ace796aac585e61f5c.zip | |
perf tools: Add stat event read function
Introducing the perf_event__process_stat_event function to process a
'struct perf_stat' data from a stat event.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Kan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-17-git-send-email-jolsa@kernel.org
[ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/stat.c | 23 | ||||
| -rw-r--r-- | tools/perf/util/stat.h | 6 |
2 files changed, 29 insertions, 0 deletions
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c index 2d9d8306dbd3..0ad59cea318c 100644 --- a/tools/perf/util/stat.c +++ b/tools/perf/util/stat.c @@ -341,3 +341,26 @@ int perf_stat_process_counter(struct perf_stat_config *config, return 0; } + +int perf_event__process_stat_event(struct perf_tool *tool __maybe_unused, + union perf_event *event, + struct perf_session *session) +{ + struct perf_counts_values count; + struct stat_event *st = &event->stat; + struct perf_evsel *counter; + + count.val = st->val; + count.ena = st->ena; + count.run = st->run; + + counter = perf_evlist__id2evsel(session->evlist, st->id); + if (!counter) { + pr_err("Failed to resolve counter for stat event.\n"); + return -EINVAL; + } + + *perf_counts(counter->counts, st->cpu, st->thread) = count; + counter->supported = true; + return 0; +} diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h index da1d11c4f8c1..afe6844e5219 100644 --- a/tools/perf/util/stat.h +++ b/tools/perf/util/stat.h @@ -90,4 +90,10 @@ void perf_evlist__reset_stats(struct perf_evlist *evlist); int perf_stat_process_counter(struct perf_stat_config *config, struct perf_evsel *counter); +struct perf_tool; +union perf_event; +struct perf_session; +int perf_event__process_stat_event(struct perf_tool *tool, + union perf_event *event, + struct perf_session *session); #endif |