diff options
Diffstat (limited to 'tools/perf/util/evlist.c')
| -rw-r--r-- | tools/perf/util/evlist.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 7ef43f72098e..e36da58522ef 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -251,6 +251,9 @@ static struct evsel *evlist__dummy_event(struct evlist *evlist) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_DUMMY, .size = sizeof(attr), /* to capture ABI version */ + /* Avoid frequency mode for dummy events to avoid associated timers. */ + .freq = 0, + .sample_period = 1, }; return evsel__new_idx(&attr, evlist->core.nr_entries); @@ -277,8 +280,6 @@ struct evsel *evlist__add_aux_dummy(struct evlist *evlist, bool system_wide) evsel->core.attr.exclude_kernel = 1; evsel->core.attr.exclude_guest = 1; evsel->core.attr.exclude_hv = 1; - evsel->core.attr.freq = 0; - evsel->core.attr.sample_period = 1; evsel->core.system_wide = system_wide; evsel->no_aux_samples = true; evsel->name = strdup("dummy:u"); @@ -1694,6 +1695,24 @@ void evlist__set_tracking_event(struct evlist *evlist, struct evsel *tracking_ev tracking_evsel->tracking = true; } +struct evsel *evlist__findnew_tracking_event(struct evlist *evlist, bool system_wide) +{ + struct evsel *evsel; + + evsel = evlist__get_tracking_event(evlist); + if (!evsel__is_dummy_event(evsel)) { + evsel = evlist__add_aux_dummy(evlist, system_wide); + if (!evsel) + return NULL; + + evlist__set_tracking_event(evlist, evsel); + } else if (system_wide) { + perf_evlist__go_system_wide(&evlist->core, &evsel->core); + } + + return evsel; +} + struct evsel *evlist__find_evsel_by_str(struct evlist *evlist, const char *str) { struct evsel *evsel; |