perf report: Show group description when event group is enabled

[platform/adaptation/renesas_rcar/renesas_kernel.git] / tools / perf / util / evsel.c

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index baa26dd..94e7404 100644 (file)
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -434,6 +434,31 @@ const char *perf_evsel__name(struct perf_evsel *evsel)
        return evsel->name ?: "unknown";
 }
 
+const char *perf_evsel__group_name(struct perf_evsel *evsel)
+{
+       return evsel->group_name ?: "anon group";
+}
+
+int perf_evsel__group_desc(struct perf_evsel *evsel, char *buf, size_t size)
+{
+       int ret;
+       struct perf_evsel *pos;
+       const char *group_name = perf_evsel__group_name(evsel);
+
+       ret = scnprintf(buf, size, "%s", group_name);
+
+       ret += scnprintf(buf + ret, size - ret, " { %s",
+                        perf_evsel__name(evsel));
+
+       for_each_group_member(pos, evsel)
+               ret += scnprintf(buf + ret, size - ret, ", %s",
+                                perf_evsel__name(pos));
+
+       ret += scnprintf(buf + ret, size - ret, " }");
+
+       return ret;
+}
+
 /*
  * The enable_on_exec/disabled value strategy:
  *