Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8e381596 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf tools: Add stat config event read function 



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

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Tested-by: default avatarKan Liang <kan.liang@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1445784728-21732-14-git-send-email-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 67424342

tools/perf/tests/stat.c

+6 −0
Original line number Diff line number Diff line
@@ -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;

}

tools/perf/util/event.c

+24 −0
Original line number Diff line number Diff line
@@ -909,6 +909,30 @@ 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;

tools/perf/util/event.h

+2 −0
Original line number Diff line number Diff line
@@ -477,6 +477,8 @@ 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,