[tip:perf/core] perf stat report: Process stat config event

[tip-bot for Jiri Olsa]

Commit-ID:  62ba18ba938a8740ab18e02342b282d7378986f7
Gitweb:     http://git.kernel.org/tip/62ba18ba938a8740ab18e02342b282d7378986f7
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Thu, 5 Nov 2015 15:40:57 +0100
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 17 Dec 2015 16:27:00 -0300

perf stat report: Process stat config event

Adding processing of stat config event and initialize stat_config
object.

Reported-by: Kan Liang <kan.liang@xxxxxxxxx>
Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1446734469-11352-14-git-send-email-jolsa@xxxxxxxxxx
[ Renamed 'stat' parameter to 'st' to fix 'already defined' build error with older distros (e.g. RHEL6.7) ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-stat.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 0a1cfdd..1e5db50 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1533,6 +1533,15 @@ static int __cmd_record(int argc, const char **argv)
 	return argc;
 }
 
+static
+int process_stat_config_event(struct perf_tool *tool __maybe_unused,
+			      union perf_event *event,
+			      struct perf_session *session __maybe_unused)
+{
+	perf_event__read_stat_config(&stat_config, &event->stat_config);
+	return 0;
+}
+
 static int set_maps(struct perf_stat *st)
 {
 	if (!st->cpus || !st->threads)
@@ -1600,6 +1609,7 @@ static struct perf_stat perf_stat = {
 		.attr		= perf_event__process_attr,
 		.thread_map	= process_thread_map_event,
 		.cpu_map	= process_cpu_map_event,
+		.stat_config	= process_stat_config_event,
 	},
 };
 
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