Currently only adding metrics for core- or uncore-based events is
supported. Extend this for system events.

Signed-off-by: John Garry <[email protected]>
---
 tools/perf/util/metricgroup.c | 39 +++++++++++++++++++++++++++++++++++----
 1 file changed, 35 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index ecf14aa01a59..4062bb33912a 100644
--- a/tools/perf/util/metricgroup.c
+++ b/tools/perf/util/metricgroup.c
@@ -598,6 +598,25 @@ static int metricgroup__add_metric_pmu_event(struct 
pmu_event *pe,
        return 0;
 }
 
+struct metricgroup_add_iter_data {
+       const char *metric;
+       struct strbuf *events;
+       struct list_head *group_list;
+       int *ret;
+};
+
+static int metricgroup__add_metric_sys_event_iter(struct pmu_event *pe,
+                                                 void *data)
+{
+       struct metricgroup_add_iter_data *d = data;
+
+       if (!match_pe_metric(pe, d->metric))
+               return 0;
+
+       return (*d->ret = metricgroup__add_metric_pmu_event(pe, d->events,
+                                                           d->group_list));
+}
+
 static int metricgroup__add_metric(const char *metric, struct strbuf *events,
                                   struct list_head *group_list)
 {
@@ -605,10 +624,7 @@ static int metricgroup__add_metric(const char *metric, 
struct strbuf *events,
        struct pmu_event *pe;
        int i, ret = -EINVAL;
 
-       if (!map)
-               return 0;
-
-       for (i = 0; ; i++) {
+       for (i = 0; map; i++) {
                pe = &map->table[i];
 
                if (!pe->name && !pe->metric_group && !pe->metric_name)
@@ -623,6 +639,21 @@ static int metricgroup__add_metric(const char *metric, 
struct strbuf *events,
                                return ret;
                }
        }
+
+       {
+               struct metricgroup_iter_data data = {
+                       .fn = metricgroup__add_metric_sys_event_iter,
+                       .data = (void *) &(struct metricgroup_add_iter_data){
+                               .metric = metric,
+                               .events = events,
+                               .group_list = group_list,
+                               .ret = &ret,
+                       },
+               };
+
+               pmu_for_each_sys_event(metricgroup__sys_event_iter, &data);
+       }
+
        return ret;
 }
 
-- 
2.16.4

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