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Message-ID: <tip-60b0896cc35243f515eda2085f9897e296177e45@git.kernel.org> Date: Thu, 14 Aug 2014 01:50:35 -0700 From: tip-bot for Adrian Hunter <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com, paulus@...ba.org, hpa@...or.com, mingo@...nel.org, peterz@...radead.org, namhyung@...il.com, jolsa@...hat.com, fweisbec@...il.com, adrian.hunter@...el.com, dsahern@...il.com, tglx@...utronix.de Subject: [tip:perf/core] perf evlist: Add perf_evlist__set_tracking_event( ) Commit-ID: 60b0896cc35243f515eda2085f9897e296177e45 Gitweb: http://git.kernel.org/tip/60b0896cc35243f515eda2085f9897e296177e45 Author: Adrian Hunter <adrian.hunter@...el.com> AuthorDate: Thu, 31 Jul 2014 09:00:52 +0300 Committer: Arnaldo Carvalho de Melo <acme@...hat.com> CommitDate: Wed, 13 Aug 2014 19:21:32 -0300 perf evlist: Add perf_evlist__set_tracking_event() Add a function to change which event is used to track mmap, comm and task events. This is needed with Instruction Tracing because the Instruction Tracing event must come first but cannot be used for tracking because it will be disabled under some circumstances. Signed-off-by: Adrian Hunter <adrian.hunter@...el.com> Cc: David Ahern <dsahern@...il.com> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Jiri Olsa <jolsa@...hat.com> Cc: Namhyung Kim <namhyung@...il.com> Cc: Paul Mackerras <paulus@...ba.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Stephane Eranian <eranian@...gle.com> Link: http://lkml.kernel.org/r/1406786474-9306-10-git-send-email-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> --- tools/perf/util/evlist.c | 17 +++++++++++++++++ tools/perf/util/evlist.h | 3 +++ tools/perf/util/evsel.c | 3 ++- tools/perf/util/evsel.h | 1 + tools/perf/util/record.c | 2 +- 5 files changed, 24 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index c74d8ec..9d863db 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -122,6 +122,7 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry) { list_add_tail(&entry->node, &evlist->entries); entry->idx = evlist->nr_entries; + entry->tracking = !entry->idx; if (!evlist->nr_entries++) perf_evlist__set_id_pos(evlist); @@ -1295,3 +1296,19 @@ void perf_evlist__to_front(struct perf_evlist *evlist, list_splice(&move, &evlist->entries); } + +void perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel) +{ + struct perf_evsel *evsel; + + if (tracking_evsel->tracking) + return; + + evlist__for_each(evlist, evsel) { + if (evsel != tracking_evsel) + evsel->tracking = false; + } + + tracking_evsel->tracking = true; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index f5173cd..e0084f9 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -262,4 +262,7 @@ void perf_evlist__to_front(struct perf_evlist *evlist, #define evlist__for_each_safe(evlist, tmp, evsel) \ __evlist__for_each_safe(&(evlist)->entries, tmp, evsel) +void perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel); + #endif /* __PERF_EVLIST_H */ diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index 66de9a7..01ce14c 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -162,6 +162,7 @@ void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr, int idx) { evsel->idx = idx; + evsel->tracking = !idx; evsel->attr = *attr; evsel->leader = evsel; evsel->unit = ""; @@ -561,7 +562,7 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts) { struct perf_evsel *leader = evsel->leader; struct perf_event_attr *attr = &evsel->attr; - int track = !evsel->idx; /* only the first counter needs these */ + int track = evsel->tracking; bool per_cpu = opts->target.default_per_cpu && !opts->target.per_thread; attr->sample_id_all = perf_missing_features.sample_id_all ? 0 : 1; diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index dbb2a0d..7bc314b 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -86,6 +86,7 @@ struct perf_evsel { bool no_aux_samples; bool immediate; bool system_wide; + bool tracking; /* parse modifier helper */ int exclude_GH; int nr_members; diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c index e778afd..cf69325 100644 --- a/tools/perf/util/record.c +++ b/tools/perf/util/record.c @@ -115,7 +115,7 @@ void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts) evlist__for_each(evlist, evsel) { perf_evsel__config(evsel, opts); - if (!evsel->idx && use_comm_exec) + if (evsel->tracking && use_comm_exec) evsel->attr.comm_exec = 1; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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