zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/tools/perf/util/debugfs.h b/ap/os/linux/linux-3.4.x/tools/perf/util/debugfs.h
new file mode 100644
index 0000000..68f3e87
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/tools/perf/util/debugfs.h
@@ -0,0 +1,12 @@
+#ifndef __DEBUGFS_H__
+#define __DEBUGFS_H__
+
+const char *debugfs_find_mountpoint(void);
+int debugfs_valid_mountpoint(const char *debugfs);
+char *debugfs_mount(const char *mountpoint);
+void debugfs_set_path(const char *mountpoint);
+
+extern char debugfs_mountpoint[];
+extern char tracing_events_path[];
+
+#endif /* __DEBUGFS_H__ */