[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/mach/spin-lock.h b/ap/libc/glibc/glibc-2.23/mach/spin-lock.h
new file mode 100644
index 0000000..535191a
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/mach/spin-lock.h
@@ -0,0 +1,33 @@
+/* Definitions of user-visible names for spin locks.
+ Copyright (C) 1994-2016 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/>. */
+
+#ifndef _SPIN_LOCK_H
+#define _SPIN_LOCK_H
+
+#include <lock-intern.h> /* This does all the work. */
+
+typedef __spin_lock_t spin_lock_t;
+#define SPIN_LOCK_INITIALIZER __SPIN_LOCK_INITIALIZER
+
+#define spin_lock_init(lock) __spin_lock_init (lock)
+#define spin_lock(lock) __spin_lock (lock)
+#define spin_try_lock(lock) __spin_try_lock (lock)
+#define spin_unlock(lock) __spin_unlock (lock)
+#define spin_lock_locked(lock) __spin_lock_locked (lock)
+
+#endif /* spin-lock.h */