Messages in this thread Patch in this message | | | From | Jin Yao <> | Subject | [PATCH v4 1/3] perf evlist: Create new function perf_evlist__force_leader | Date | Mon, 21 May 2018 22:57:44 +0800 |
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For non-explicit group, perf report supports a option '--group' which can enable group output. We also need to support perf annotate with the same '--group'.
Create a new function perf_evlist__force_leader which contains common code to force setting the group leader.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com> --- tools/perf/util/evlist.c | 15 +++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 18 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index a59281d..e7a4b31 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1795,3 +1795,18 @@ bool perf_evlist__exclude_kernel(struct perf_evlist *evlist) return true; } + +/* + * Events in data file are not collect in groups, but we still want + * the group display. Set the artificial group and set the leader's + * forced_leader flag to notify the display code. + */ +void perf_evlist__force_leader(struct perf_evlist *evlist) +{ + if (!evlist->nr_groups) { + struct perf_evsel *leader = perf_evlist__first(evlist); + + perf_evlist__set_leader(evlist); + leader->forced_leader = true; + } +} diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 6c41b2f..dc66436 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -309,4 +309,7 @@ struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist, union perf_event *event); bool perf_evlist__exclude_kernel(struct perf_evlist *evlist); + +void perf_evlist__force_leader(struct perf_evlist *evlist); + #endif /* __PERF_EVLIST_H */ -- 2.7.4
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