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Message-Id: <1406035081-14301-18-git-send-email-adrian.hunter@intel.com> Date: Tue, 22 Jul 2014 16:17:26 +0300 From: Adrian Hunter <adrian.hunter@...el.com> To: Arnaldo Carvalho de Melo <acme@...nel.org> Cc: Peter Zijlstra <peterz@...radead.org>, linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>, Frederic Weisbecker <fweisbec@...il.com>, Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...il.com>, Paul Mackerras <paulus@...ba.org>, Stephane Eranian <eranian@...gle.com> Subject: [PATCH 17/52] 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> --- tools/perf/util/evlist.c | 20 ++++++++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 23 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 814e954..282e83e 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1250,3 +1250,23 @@ void perf_evlist__to_front(struct perf_evlist *evlist, list_splice(&move, &evlist->entries); } + +int perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel) +{ + struct perf_evsel *evsel; + + if (tracking_evsel->idx == 0) + return 0; + + if (tracking_evsel->leader->nr_members > 1) + return -EINVAL; + + list_for_each_entry(evsel, &evlist->entries, node) { + if (evsel->idx < tracking_evsel->idx) + evsel->idx += 1; + } + tracking_evsel->idx = 0; + + return 0; +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index f5173cd..657a36c 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) +int perf_evlist__set_tracking_event(struct perf_evlist *evlist, + struct perf_evsel *tracking_evsel); + #endif /* __PERF_EVLIST_H */ -- 1.8.3.2 -- 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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