3 files changed, 8 insertions, 3 deletions
diff --git a/tools/lib/perf/include/internal/evlist.h b/tools/lib/perf/include/internal/evlist.h
index 212c29063ad4..f366dbad6a88 100644
--- a/tools/lib/perf/include/internal/evlist.h
+++ b/tools/lib/perf/include/internal/evlist.h
@@ -16,6 +16,7 @@ struct perf_mmap_param;
 struct perf_evlist {
 	struct list_head	 entries;
 	int			 nr_entries;
+	int			 nr_groups;
 	bool			 has_user_cpus;
 	struct perf_cpu_map	*cpus;
 	struct perf_cpu_map	*all_cpus;
@@ -126,4 +127,5 @@ int perf_evlist__id_add_fd(struct perf_evlist *evlist,
 
 void perf_evlist__reset_id_hash(struct perf_evlist *evlist);
 
+void __perf_evlist__set_leader(struct list_head *list);
 #endif /* __LIBPERF_INTERNAL_EVLIST_H */
diff --git a/tools/lib/perf/include/internal/evsel.h b/tools/lib/perf/include/internal/evsel.h
index 1c067d088bc6..1f3eacbad2e8 100644
--- a/tools/lib/perf/include/internal/evsel.h
+++ b/tools/lib/perf/include/internal/evsel.h
@@ -45,13 +45,16 @@ struct perf_evsel {
 	struct xyarray		*sample_id;
 	u64			*id;
 	u32			 ids;
+	struct perf_evsel	*leader;
 
 	/* parse modifier helper */
 	int			 nr_members;
 	bool			 system_wide;
+	int			 idx;
 };
 
-void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr);
+void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr,
+		      int idx);
 int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads);
 void perf_evsel__close_fd(struct perf_evsel *evsel);
 void perf_evsel__free_fd(struct perf_evsel *evsel);
diff --git a/tools/lib/perf/include/internal/tests.h b/tools/lib/perf/include/internal/tests.h
index 29425c2dabe1..61052099225b 100644
--- a/tools/lib/perf/include/internal/tests.h
+++ b/tools/lib/perf/include/internal/tests.h
@@ -5,8 +5,8 @@
 #include <stdio.h>
 #include <unistd.h>
 
-int tests_failed;
-int tests_verbose;
+extern int tests_failed;
+extern int tests_verbose;
 
 static inline int get_verbose(char **argv, int argc)
 {