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perf stat: Move create_perf_stat_counter() to stat.c

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Move create_perf_stat_counter() to the 'stat' class, so that we can use
it globally.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180830063252.23729-9-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2018-08-30 08:32:17 +02:00 committed by Arnaldo Carvalho de Melo
parent 650d622046
commit d09cefd2ef
3 changed files with 58 additions and 53 deletions
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54
tools/perf/builtin-stat.c
View File

@ -234,58 +234,6 @@ static void perf_stat__reset_stats(void)
perf_stat__reset_shadow_per_stat(&stat_config.stats[i]);
}
static int create_perf_stat_counter(struct perf_evsel *evsel,
struct perf_stat_config *config)
{
struct perf_event_attr *attr = &evsel->attr;
struct perf_evsel *leader = evsel->leader;
if (config->scale) {
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
}
/*
* The event is part of non trivial group, let's enable
* the group read (for leader) and ID retrieval for all
* members.
*/
if (leader->nr_members > 1)
attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP;
attr->inherit = !config->no_inherit;
/*
* Some events get initialized with sample_(period/type) set,
* like tracepoints. Clear it up for counting.
*/
attr->sample_period = 0;
if (config->identifier)
attr->sample_type = PERF_SAMPLE_IDENTIFIER;
/*
* Disabling all counters initially, they will be enabled
* either manually by us or by kernel via enable_on_exec
* set later.
*/
if (perf_evsel__is_group_leader(evsel)) {
attr->disabled = 1;
/*
* In case of initial_delay we enable tracee
* events manually.
*/
if (target__none(&target) && !config->initial_delay)
attr->enable_on_exec = 1;
}
if (target__has_cpu(&target) && !target__has_per_thread(&target))
return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
return perf_evsel__open_per_thread(evsel, evsel->threads);
}
static int process_synthesized_event(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample __maybe_unused,
@ -568,7 +516,7 @@ static int __run_perf_stat(int argc, const char **argv, int run_idx)
evlist__for_each_entry(evsel_list, counter) {
try_again:
if (create_perf_stat_counter(counter, &stat_config) < 0) {
if (create_perf_stat_counter(counter, &stat_config, &target) < 0) {
/* Weak group failed. Reset the group. */
if ((errno == EINVAL || errno == EBADF) &&

53
tools/perf/util/stat.c
View File

@ -435,3 +435,56 @@ size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp)
return ret;
}
int create_perf_stat_counter(struct perf_evsel *evsel,
struct perf_stat_config *config,
struct target *target)
{
struct perf_event_attr *attr = &evsel->attr;
struct perf_evsel *leader = evsel->leader;
if (config->scale) {
attr->read_format = PERF_FORMAT_TOTAL_TIME_ENABLED |
PERF_FORMAT_TOTAL_TIME_RUNNING;
}
/*
* The event is part of non trivial group, let's enable
* the group read (for leader) and ID retrieval for all
* members.
*/
if (leader->nr_members > 1)
attr->read_format |= PERF_FORMAT_ID|PERF_FORMAT_GROUP;
attr->inherit = !config->no_inherit;
/*
* Some events get initialized with sample_(period/type) set,
* like tracepoints. Clear it up for counting.
*/
attr->sample_period = 0;
if (config->identifier)
attr->sample_type = PERF_SAMPLE_IDENTIFIER;
/*
* Disabling all counters initially, they will be enabled
* either manually by us or by kernel via enable_on_exec
* set later.
*/
if (perf_evsel__is_group_leader(evsel)) {
attr->disabled = 1;
/*
* In case of initial_delay we enable tracee
* events manually.
*/
if (target__none(target) && !config->initial_delay)
attr->enable_on_exec = 1;
}
if (target__has_cpu(target) && !target__has_per_thread(target))
return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
return perf_evsel__open_per_thread(evsel, evsel->threads);
}

4
tools/perf/util/stat.h
View File

@ -175,4 +175,8 @@ int perf_event__process_stat_event(struct perf_tool *tool,
size_t perf_event__fprintf_stat(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_stat_round(union perf_event *event, FILE *fp);
size_t perf_event__fprintf_stat_config(union perf_event *event, FILE *fp);
int create_perf_stat_counter(struct perf_evsel *evsel,
struct perf_stat_config *config,
struct target *target);
#endif