perf evlist: Rename __group method to __set_leader

Just like was done for parse_events__set_leader.

Also we need to have the list_entry set_leader method in evlist.c so that we
don't grow another dep in the python binding:

 # ~acme/git/linux/tools/perf/python/twatch.py
 Traceback (most recent call last):
   File "/home/acme/git/linux/tools/perf/python/twatch.py", line 16, in <module>
     import perf
 ImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: parse_events__set_leader

And also remove a pr_debug from evsel.c so that we avoid this one too:

 # ~acme/git/linux/tools/perf/python/twatch.py
 Traceback (most recent call last):
   File "/home/acme/git/linux/tools/perf/python/twatch.py", line 16, in <module>
     import perf
 ImportError: /home/acme/git/build/perf/python/perf.so: undefined symbol: eprintf

Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-0hk9dazg9pora9jylkqngovm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 16 deletions

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index f6453cd414ae..4393a6b65c51 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -611,31 +611,18 @@ int parse_events_add_pmu(struct list_head **list, int *idx,
                          pmu_event_name(head_config));
 }
 
-struct perf_evsel *parse_events__set_leader(struct list_head *list)
-{
-        struct perf_evsel *evsel, *leader;
-
-        leader = list_entry(list->next, struct perf_evsel, node);
-        leader->leader = NULL;
-
-        list_for_each_entry(evsel, list, node)
-                if (evsel != leader)
-                        evsel->leader = leader;
-
-        return leader;
-}
-
 int parse_events__modifier_group(struct list_head *list,
                                  char *event_mod)
 {
         return parse_events__modifier_event(list, event_mod, true);
 }
 
-void parse_events__group(char *name, struct list_head *list)
+void parse_events__set_leader(char *name, struct list_head *list)
 {
         struct perf_evsel *leader;
 
-        leader = parse_events__set_leader(list);
+        __perf_evlist__set_leader(list);
+        leader = list_entry(list->next, struct perf_evsel, node);
         leader->group_name = name ? strdup(name) : NULL;
 }