From: Arnaldo Carvalho de Melo Date: Sat, 21 Feb 2015 19:33:47 +0000 (-0800) Subject: perf evlist: Introduce set_filter_pids method X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=be199ada4fbbe5f742f854dce8e455cfcfcf7adb;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git perf evlist: Introduce set_filter_pids method We need to filter multiple pids in trace, i.e. trace itself, gnome-terminal, X.org, etc. Cc: Adrian Hunter Cc: Borislav Petkov Cc: David Ahern Cc: Don Zickus Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-frtpkg7qapqwf7asa35wf8am@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 39302a455a58..8d0b62361129 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1085,19 +1085,38 @@ int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter) return err; } -int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid) +int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids) { char *filter; - int ret; + int ret = -1; + size_t i; - if (asprintf(&filter, "common_pid != %d", pid) < 0) - return -1; + for (i = 0; i < npids; ++i) { + if (i == 0) { + if (asprintf(&filter, "common_pid != %d", pids[i]) < 0) + return -1; + } else { + char *tmp; + + if (asprintf(&tmp, "%s && common_pid != %d", filter, pids[i]) < 0) + goto out_free; + + free(filter); + filter = tmp; + } + } ret = perf_evlist__set_filter(evlist, filter); +out_free: free(filter); return ret; } +int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid) +{ + return perf_evlist__set_filter_pids(evlist, 1, &pid); +} + bool perf_evlist__valid_sample_type(struct perf_evlist *evlist) { struct perf_evsel *pos; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index 715fa3a296f4..c19ff45c9ad5 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -78,6 +78,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist, int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter); int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid); +int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids); struct perf_evsel * perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);