3 files changed, 18 insertions, 0 deletions

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index c974e08d07ab..63cadaf3e208 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -86,6 +86,7 @@ void perf_evsel__delete(struct perf_evsel *evsel)
 {
         perf_evsel__exit(evsel);
         close_cgroup(evsel->cgrp);
+        free(evsel->name);
         free(evsel);
 }
 
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 1d3d5a3dbe60..f6fc8f651a25 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -37,6 +37,12 @@ struct perf_sample_id {
         struct perf_evsel       *evsel;
 };
 
+/** struct perf_evsel - event selector
+ *
+ * @name - Can be set to retain the original event name passed by the user,
+ *         so that when showing results in tools such as 'perf stat', we
+ *         show the name used, not some alias.
+ */
 struct perf_evsel {
         struct list_head        node;
         struct perf_event_attr  attr;
@@ -45,6 +51,7 @@ struct perf_evsel {
         struct xyarray          *id;
         struct perf_counts      *counts;
         int                     idx;
+        char                    *name;
         void                    *priv;
         struct cgroup_sel       *cgrp;
 };
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index cf082daa43e3..80a3dd5ef573 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -268,6 +268,9 @@ const char *event_name(struct perf_evsel *evsel)
         u64 config = evsel->attr.config;
         int type = evsel->attr.type;
 
+        if (evsel->name)
+                return evsel->name;
+
         return __event_name(type, config);
 }
 
@@ -782,8 +785,10 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
         struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
         struct perf_event_attr attr;
         enum event_result ret;
+        const char *ostr;
 
         for (;;) {
+                ostr = str;
                 memset(&attr, 0, sizeof(attr));
                 ret = parse_event_symbols(opt, &str, &attr);
                 if (ret == EVT_FAILED)
@@ -798,6 +803,11 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
                         if (evsel == NULL)
                                 return -1;
                         perf_evlist__add(evlist, evsel);
+
+                        evsel->name = calloc(str - ostr + 1, 1);
+                        if (!evsel->name)
+                                return -1;
+                        strncpy(evsel->name, ostr, str - ostr);
                 }
 
                 if (*str == 0)