Commit ce391940 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf metric: Add macros for iterating map events 



Adding following macros to iterate events and metric:

  map_for_each_event(__pe, __idx, __map)
    - iterates over all pmu_events_map events

  map_for_each_metric(__pe, __idx, __map, __metric)
    - iterates over all metrics that match __metric argument

and use it in metricgroup__add_metric function. Macros will be be used
from other places in following changes.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Reviewed-by: default avatarKajol Jain <kjain@linux.ibm.com>
Acked-by: default avatarIan Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200719181320.785305-6-jolsa@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 3fd29fa6

tools/perf/util/metricgroup.c

+40 −37
Original line number Diff line number Diff line
@@ -614,6 +614,17 @@ static int __metricgroup__add_metric(struct list_head *group_list, 
	return 0;

}



#define map_for_each_event(__pe, __idx, __map)				\

	for (__idx = 0, __pe = &__map->table[__idx];			\

	     __pe->name || __pe->metric_group || __pe->metric_name;	\

	     __pe = &__map->table[++__idx])



#define map_for_each_metric(__pe, __idx, __map, __metric)		\

	map_for_each_event(__pe, __idx, __map)				\

		if (__pe->metric_expr &&				\

		    (match_metric(__pe->metric_group, __metric) ||	\

		     match_metric(__pe->metric_name, __metric)))



static int metricgroup__add_metric(const char *metric, bool metric_no_group,

				   struct strbuf *events,

				   struct list_head *group_list,
@@ -624,21 +635,9 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group, 
	int i, ret;

	bool has_match = false;



	for (i = 0; ; i++) {

		pe = &map->table[i];



		if (!pe->name && !pe->metric_group && !pe->metric_name) {

			/* End of pmu events. */

			if (!has_match)

				return -EINVAL;

			break;

		}

		if (!pe->metric_expr)

			continue;

		if (match_metric(pe->metric_group, metric) ||

		    match_metric(pe->metric_name, metric)) {

			has_match = true;

	map_for_each_metric(pe, i, map, metric) {

		pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);

		has_match = true;



		if (!strstr(pe->metric_expr, "?")) {

			ret = __metricgroup__add_metric(group_list,
@@ -666,7 +665,11 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group, 
			}

		}

	}

	}



	/* End of pmu events. */

	if (!has_match)

		return -EINVAL;



	list_for_each_entry(eg, group_list, nd) {

		if (events->len > 0)

			strbuf_addf(events, ",");

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