linux-kernel - [PATCH 25/47] perf tools: Add stat round event synthesize function

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Date:	Tue, 21 Jul 2015 14:31:45 +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>
Subject: [PATCH 25/47] perf tools: Add stat round event synthesize function

Introduce perf_event__synthesize_stat_round function to
synthesize 'struct stat_round_event'.

Link: http://lkml.kernel.org/n/tip-gl8rk2il9grrnqalrqlo7iym@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@...nel.org>
---
 tools/perf/tests/builtin-test.c |  4 ++++
 tools/perf/tests/stat.c         | 19 +++++++++++++++++++
 tools/perf/tests/tests.h        |  2 ++
 tools/perf/util/event.c         | 16 ++++++++++++++++
 tools/perf/util/event.h         |  4 ++++
 5 files changed, 45 insertions(+)

diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 7d8772c0ea82..4dd6483a6c1c 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -191,6 +191,10 @@ static struct test {
 		.func = test__synthesize_stat,
 	},
 	{
+		.desc = "Test stat round synthesize",
+		.func = test__synthesize_stat_round,
+	},
+	{
 		.func = NULL,
 	},
 };
diff --git a/tools/perf/tests/stat.c b/tools/perf/tests/stat.c
index 31b242159e79..862062256cca 100644
--- a/tools/perf/tests/stat.c
+++ b/tools/perf/tests/stat.c
@@ -87,3 +87,22 @@ int test__synthesize_stat(void)
 
 	return 0;
 }
+
+static int process_stat_round_event(struct perf_tool *tool __maybe_unused,
+				    union perf_event *event,
+				    struct perf_sample *sample __maybe_unused,
+				    struct machine *machine __maybe_unused)
+{
+	struct stat_round_event *stat_round = &event->stat_round;
+
+	TEST_ASSERT_VAL("wrong time",    stat_round->time == 0xdeadbeef);
+	return 0;
+}
+
+int test__synthesize_stat_round(void)
+{
+	TEST_ASSERT_VAL("failed to synthesize stat_config",
+		!perf_event__synthesize_stat_round(NULL, 0xdeadbeef, process_stat_round_event, NULL));
+
+	return 0;
+}
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 98beb2be1e26..ae28421a4834 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -66,6 +66,8 @@ int test__thread_map_synthesize(void);
 int test__cpu_map_synthesize(void);
 int test__synthesize_stat_config(void);
 int test__synthesize_stat(void);
+int test__synthesize_stat_round(void);
+
 
 #if defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__aarch64__)
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 658cb81eb27f..905c6dc21ac8 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -827,6 +827,22 @@ int perf_event__synthesize_stat(struct perf_tool *tool,
 	return process(tool, (union perf_event *) &event, NULL, machine);
 }
 
+int perf_event__synthesize_stat_round(struct perf_tool *tool,
+				      u64 time,
+				      perf_event__handler_t process,
+				      struct machine *machine)
+{
+	struct stat_round_event event;
+
+	event.header.type = PERF_RECORD_STAT_ROUND;
+	event.header.size = sizeof(event);
+	event.header.misc = 0;
+
+	event.time = time;
+
+	return process(tool, (union perf_event *) &event, NULL, machine);
+}
+
 void perf_event__read_stat_config(struct perf_stat_config *config,
 				  struct stat_config_event *event)
 {
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index a4d3b3098613..d5a248b7643a 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -482,6 +482,10 @@ int perf_event__synthesize_stat(struct perf_tool *tool,
 				struct perf_counts_values *count,
 				perf_event__handler_t process,
 				struct machine *machine);
+int perf_event__synthesize_stat_round(struct perf_tool *tool,
+				      u64 time,
+				      perf_event__handler_t process,
+				      struct machine *machine);
 int perf_event__synthesize_modules(struct perf_tool *tool,
 				   perf_event__handler_t process,
 				   struct machine *machine);
-- 
2.4.3

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