Add lock tracking for rwlocks. Previously, lock.h only had the ability to

hold tracking information for mutexes.  Now, the "core show locks" output
will output information about who is holding a rwlock when a thread is
waiting on it.

(closes issue #11279)
Reported by: ys
Patches:
      trunk_lock_utils.v8.diff uploaded by ys (license 281)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@120064 65c4cc65-6c06-0410-ace0-fbb531ad65f3

utils/ael_main.c

@@ -587,6 +587,12 @@ void ast_store_lock_info(enum ast_lock_type type, const char *filename,
 	int line_num, const char *func, const char *lock_name, void *lock_addr, struct ast_bt *bt)
 {
 }
+
+int ast_bt_get_addresses(struct ast_bt *bt)
+{
+	return 0;
+}
+
 #else
 void ast_remove_lock_info(void *lock_addr)
 {