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[PATCH 21/45] perf stat record: Synthesize stat record data

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Synthesizing needed stat record data for report/script:
  - cpu/thread maps
  - stat config

Link: http://lkml.kernel.org/n/tip-wni1s2i2sq17g4vomjyda2yf@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
 tools/perf/builtin-stat.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a81896b2307b..fa5299db0d2d 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -191,6 +191,20 @@ static inline int nsec_counter(struct perf_evsel *evsel)
 	return 0;
 }
 
+static int process_synthesized_event(struct perf_tool *tool __maybe_unused,
+				     union perf_event *event,
+				     struct perf_sample *sample __maybe_unused,
+				     struct machine *machine __maybe_unused)
+{
+	if (perf_data_file__write(&perf_stat.file, event, event->header.size) < 0) {
+		pr_err("failed to write perf data, error: %m\n");
+		return -1;
+	}
+
+	perf_stat.bytes_written += event->header.size;
+	return 0;
+}
+
 /*
  * Read out the results of a single counter:
  * do not aggregate counts across CPUs in system-wide mode
@@ -277,6 +291,35 @@ static void workload_exec_failed_signal(int signo __maybe_unused, siginfo_t *inf
 	workload_exec_errno = info->si_value.sival_int;
 }
 
+static int perf_stat_synthesize_config(void)
+{
+	int err;
+
+	err = perf_event__synthesize_thread_map2(NULL, evsel_list->threads,
+						process_synthesized_event,
+						NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize thread map.\n");
+		return err;
+	}
+
+	err = perf_event__synthesize_cpu_map(NULL, evsel_list->cpus,
+					     process_synthesized_event, NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize thread map.\n");
+		return err;
+	}
+
+	err = perf_event__synthesize_stat_config(NULL, &stat_config,
+						 process_synthesized_event, NULL);
+	if (err < 0) {
+		pr_err("Couldn't synthesize config.\n");
+		return err;
+	}
+
+	return 0;
+}
+
 static int __run_perf_stat(int argc, const char **argv)
 {
 	int interval = stat_config.interval;
@@ -357,6 +400,10 @@ static int __run_perf_stat(int argc, const char **argv)
 						 fd, false);
 		if (err < 0)
 			return err;
+
+		err = perf_stat_synthesize_config();
+		if (err < 0)
+			return err;
 	}
 
 	/*
-- 
2.4.3

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[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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