diff options
| author | Jiri Olsa <jolsa@kernel.org> | 2015-10-25 15:51:39 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-12-17 15:12:46 -0300 |
| commit | 802c9048b824eaa3c75d875e2d107460ad586439 (patch) | |
| tree | 94616df09e6ec969c7c89c0beb8a0b075996d849 /tools/perf/util | |
| parent | daeecbc0c431f15f492fb8d704080a02de6e2918 (diff) | |
perf tools: Add event_update event name type
Adding name type 'event update' event, that stores/transfer events name.
Event's name is stored within perf.data's EVENT_DESC feature, but we
don't have it if we get the report data from pipe.
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/1445784728-21732-24-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/event.h | 1 | ||||
| -rw-r--r-- | tools/perf/util/header.c | 21 | ||||
| -rw-r--r-- | tools/perf/util/header.h | 3 |
3 files changed, 25 insertions, 0 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 44198e8550e4..235196b575d6 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -311,6 +311,7 @@ struct attr_event { enum { PERF_EVENT_UPDATE__UNIT = 0, PERF_EVENT_UPDATE__SCALE = 1, + PERF_EVENT_UPDATE__NAME = 2, }; struct event_update_event_scale { diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 30edb4ba258e..cd3d005a34af 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2743,6 +2743,24 @@ perf_event__synthesize_event_update_scale(struct perf_tool *tool, return err; } +int +perf_event__synthesize_event_update_name(struct perf_tool *tool, + struct perf_evsel *evsel, + perf_event__handler_t process) +{ + struct event_update_event *ev; + size_t len = strlen(evsel->name); + int err; + + ev = event_update_event__new(len + 1, PERF_EVENT_UPDATE__NAME, evsel->id[0]); + if (ev == NULL) + return -ENOMEM; + + strncpy(ev->data, evsel->name, len); + err = process(tool, (union perf_event*) ev, NULL, NULL); + free(ev); + return err; +} int perf_event__synthesize_attrs(struct perf_tool *tool, struct perf_session *session, @@ -2825,6 +2843,9 @@ int perf_event__process_event_update(struct perf_tool *tool __maybe_unused, case PERF_EVENT_UPDATE__UNIT: evsel->unit = strdup(ev->data); break; + case PERF_EVENT_UPDATE__NAME: + evsel->name = strdup(ev->data); + break; case PERF_EVENT_UPDATE__SCALE: ev_scale = (struct event_update_event_scale *) ev->data; evsel->scale = ev_scale->scale; diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h index fad04cbab666..51cf566a0835 100644 --- a/tools/perf/util/header.h +++ b/tools/perf/util/header.h @@ -111,6 +111,9 @@ int perf_event__synthesize_event_update_unit(struct perf_tool *tool, int perf_event__synthesize_event_update_scale(struct perf_tool *tool, struct perf_evsel *evsel, perf_event__handler_t process); +int perf_event__synthesize_event_update_name(struct perf_tool *tool, + struct perf_evsel *evsel, + perf_event__handler_t process); int perf_event__process_attr(struct perf_tool *tool, union perf_event *event, struct perf_evlist **pevlist); int perf_event__process_event_update(struct perf_tool *tool __maybe_unused, |