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[PATCH 09/45] perf tools: Add stat config event read function

From Jiri Olsa <jolsa@kernel.org>
Newsgroups linux.kernel
Subject [PATCH 09/45] perf tools: Add stat config event read function
Date 2015-09-30 16:30 +0200
Message-ID <qeqyl-7BV-1@gated-at.bofh.it> (permalink)
References <qeqoF-7qA-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Introducing perf_event__read_stat_config function to read
struct perf_stat_config object data from stat config event.

Link: http://lkml.kernel.org/n/tip-62ae08zz97jp2qkhygp8uet5@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/tests/stat.c |  6 ++++++
 tools/perf/util/event.c | 24 ++++++++++++++++++++++++
 tools/perf/util/event.h |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/tools/perf/tests/stat.c b/tools/perf/tests/stat.c
index 5e6a2441998c..2049c5a3e4a2 100644
--- a/tools/perf/tests/stat.c
+++ b/tools/perf/tests/stat.c
@@ -24,6 +24,7 @@ static int process_event(struct perf_tool *tool __maybe_unused,
 			 struct machine *machine __maybe_unused)
 {
 	struct stat_config_event *config = &event->stat_config;
+	struct perf_stat_config stat_config;
 
 #define HAS(term, val) \
 	has_term(config, PERF_STAT_CONFIG_TERM__##term, val)
@@ -35,6 +36,11 @@ static int process_event(struct perf_tool *tool __maybe_unused,
 
 #undef HAS
 
+	perf_event__read_stat_config(&stat_config, config);
+
+	TEST_ASSERT_VAL("wrong aggr_mode", stat_config.aggr_mode == AGGR_CORE);
+	TEST_ASSERT_VAL("wrong scale",     stat_config.scale == 1);
+	TEST_ASSERT_VAL("wrong interval",  stat_config.interval == 1);
 	return 0;
 }
 
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 6708cc207c38..bd58b87d8be9 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -806,6 +806,30 @@ int perf_event__synthesize_stat_config(struct perf_tool *tool,
 	return err;
 }
 
+void perf_event__read_stat_config(struct perf_stat_config *config,
+				  struct stat_config_event *event)
+{
+	unsigned i;
+
+	for (i = 0; i < event->nr; i++) {
+
+		switch (event->data[i].tag) {
+#define CASE(__term, __val)					\
+		case PERF_STAT_CONFIG_TERM__##__term:		\
+			config->__val = event->data[i].val;	\
+			break;
+
+		CASE(AGGR_MODE, aggr_mode)
+		CASE(SCALE,     scale)
+		CASE(INTERVAL,  interval)
+#undef CASE
+		default:
+			pr_warning("unknown stat config term %" PRIu64 "\n",
+				   event->data[i].tag);
+		}
+	}
+}
+
 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
 {
 	const char *s;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index da6155dac7d1..c0e7a8035b21 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -457,6 +457,8 @@ int perf_event__synthesize_stat_config(struct perf_tool *tool,
 				       struct perf_stat_config *config,
 				       perf_event__handler_t process,
 				       struct machine *machine);
+void perf_event__read_stat_config(struct perf_stat_config *config,
+				  struct stat_config_event *event);
 
 int perf_event__synthesize_modules(struct perf_tool *tool,
 				   perf_event__handler_t process,
-- 
2.4.3

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Thread

[PATCHv2 00/45] perf stat: Add scripting support Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 44/45] perf script: Add python support for stat events Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 40/45] perf script: Process stat config event Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 05/45] perf tools: Add cpu_map event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 29/45] perf tools: Add data arg to cpu_map__build_map callback Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 34/45] perf stat report: Add support to initialize aggr_map from file Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 30/45] perf stat report: Cache aggregated map entries in extra cpumap Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:20 +0200
  [PATCH 09/45] perf tools: Add stat config event read function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 18/45] perf stat: Add AGGR_UNSET mode Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 11/45] perf tools: Add stat event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 17/45] perf stat: Rename perf_stat struct into perf_stat_evsel Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 23/45] perf stat record: Add pipe support for record command Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 12/45] perf tools: Add stat event read function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 02/45] perf tools: Add thread_map event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 14/45] perf tools: Add stat round event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 15/45] perf tools: Introduce stat feature Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 04/45] perf tools: Add cpu_map event Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 22/45] perf stat record: Store events IDs in perf data file Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 08/45] perf tools: Add stat config event synthesize function Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 19/45] perf stat record: Add record command Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  [PATCH 21/45] perf stat record: Synthesize stat record data Jiri Olsa <jolsa@kernel.org> - 2015-09-30 16:30 +0200
  RE: [PATCHv2 00/45] perf stat: Add scripting support "Liang, Kan" <kan.liang@intel.com> - 2015-09-30 23:20 +0200
    Re: [PATCHv2 00/45] perf stat: Add scripting support Jiri Olsa <jolsa@redhat.com> - 2015-09-30 23:40 +0200
    Re: [PATCHv2 00/45] perf stat: Add scripting support Jiri Olsa <jolsa@redhat.com> - 2015-09-30 23:40 +0200

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