diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 95313f4..e225703 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -27,4 +27,14 @@
 	return threads ? threads->nr : 1;
 }
 
+static inline pid_t thread_map__pid(struct thread_map *map, int thread)
+{
+	return map->map[thread];
+}
+
+static inline void
+thread_map__set_pid(struct thread_map *map, int thread, pid_t pid)
+{
+	map->map[thread] = pid;
+}
 #endif	/* __PERF_THREAD_MAP_H */