[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/stdlib/on_exit.c b/ap/libc/glibc/glibc-2.23/stdlib/on_exit.c
new file mode 100644
index 0000000..4d08ea8
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/stdlib/on_exit.c
@@ -0,0 +1,41 @@
+/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <stdlib.h>
+#include "exit.h"
+#include <atomic.h>
+#include <sysdep.h>
+
+/* Register a function to be called by exit. */
+int
+__on_exit (void (*func) (int status, void *arg), void *arg)
+{
+ struct exit_function *new = __new_exitfn (&__exit_funcs);
+
+ if (new == NULL)
+ return -1;
+
+#ifdef PTR_MANGLE
+ PTR_MANGLE (func);
+#endif
+ new->func.on.fn = func;
+ new->func.on.arg = arg;
+ atomic_write_barrier ();
+ new->flavor = ef_on;
+ return 0;
+}
+weak_alias (__on_exit, on_exit)