linux-kernel - [PATCH 42/45] perf script: Add stat default handlers

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Date:	Wed, 30 Sep 2015 16:10:55 +0200
From:	Jiri Olsa <jolsa@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	lkml <linux-kernel@...r.kernel.org>,
	David Ahern <dsahern@...il.com>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"Liang, Kan" <kan.liang@...el.com>
Subject: [PATCH 42/45] perf script: Add stat default handlers

Implement struct scripting_ops::(process_stat|process_stat_interval)
handlers - calling scripting handlers from stat events handlers.

Link: http://lkml.kernel.org/n/tip-3iu6vmvuur1bntbnh43v3bib@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/builtin-script.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 223ab33233eb..474811af0560 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -205,6 +205,9 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
 	struct perf_event_attr *attr = &evsel->attr;
 	bool allow_user_set;
 
+	if (perf_header__has_feat(&session->header, HEADER_STAT))
+		return 0;
+
 	allow_user_set = perf_header__has_feat(&session->header,
 					       HEADER_AUXTRACE);
 
@@ -568,6 +571,14 @@ static void process_event(union perf_event *event, struct perf_sample *sample,
 	printf("\n");
 }
 
+static void process_stat(struct perf_stat_config *config __maybe_unused,
+			 struct perf_evsel *evsel __maybe_unused,
+			 u64 time __maybe_unused)
+{
+}
+
+static void process_stat_interval(u64 time __maybe_unused) { }
+
 static int default_start_script(const char *script __maybe_unused,
 				int argc __maybe_unused,
 				const char **argv __maybe_unused)
@@ -596,6 +607,8 @@ static struct scripting_ops default_scripting_ops = {
 	.flush_script		= default_flush_script,
 	.stop_script		= default_stop_script,
 	.process_event		= process_event,
+	.process_stat		= process_stat,
+	.process_stat_interval	= process_stat_interval,
 	.generate_script	= default_generate_script,
 };
 
@@ -1623,6 +1636,22 @@ static void script__setup_sample_type(struct perf_script *script)
 	}
 }
 
+static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
+				    union perf_event *event,
+				    struct perf_session *session)
+{
+	struct stat_round_event *round = &event->stat_round;
+	struct perf_evsel *counter;
+
+	evlist__for_each(session->evlist, counter) {
+		perf_stat_process_counter(&stat_config, counter);
+		scripting_ops->process_stat(&stat_config, counter, round->time);
+	}
+
+	scripting_ops->process_stat_interval(round->time);
+	return 0;
+}
+
 static int process_stat_config_event(struct perf_tool *tool __maybe_unused,
 				     union perf_event *event,
 				     struct perf_session *session __maybe_unused)
@@ -1716,6 +1745,8 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 			.auxtrace_info	 = perf_event__process_auxtrace_info,
 			.auxtrace	 = perf_event__process_auxtrace,
 			.auxtrace_error	 = perf_event__process_auxtrace_error,
+			.stat		 = perf_event__process_stat_event,
+			.stat_round	 = process_stat_round_event,
 			.stat_config	 = process_stat_config_event,
 			.thread_map	 = process_thread_map_event,
 			.cpu_map	 = process_cpu_map_event,
-- 
2.4.3

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