[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/generic/malloc-machine.h b/ap/libc/glibc/glibc-2.23/sysdeps/generic/malloc-machine.h
new file mode 100644
index 0000000..1ed2d50
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/generic/malloc-machine.h
@@ -0,0 +1,60 @@
+/* Basic platform-independent macro definitions for mutexes,
+ thread-specific data and parameters for malloc.
+ Copyright (C) 2003-2016 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 _GENERIC_MALLOC_MACHINE_H
+#define _GENERIC_MALLOC_MACHINE_H
+
+#include <atomic.h>
+
+#ifndef mutex_init /* No threads, provide dummy macros */
+
+# define NO_THREADS
+
+/* The mutex functions used to do absolutely nothing, i.e. lock,
+ trylock and unlock would always just return 0. However, even
+ without any concurrently active threads, a mutex can be used
+ legitimately as an `in use' flag. To make the code that is
+ protected by a mutex async-signal safe, these macros would have to
+ be based on atomic test-and-set operations, for example. */
+typedef int mutex_t;
+
+# define mutex_init(m) (*(m) = 0)
+# define mutex_lock(m) ({ *(m) = 1; 0; })
+# define mutex_trylock(m) (*(m) ? 1 : ((*(m) = 1), 0))
+# define mutex_unlock(m) (*(m) = 0)
+
+#endif /* !defined mutex_init */
+
+#ifndef atomic_full_barrier
+# define atomic_full_barrier() __asm ("" ::: "memory")
+#endif
+
+#ifndef atomic_read_barrier
+# define atomic_read_barrier() atomic_full_barrier ()
+#endif
+
+#ifndef atomic_write_barrier
+# define atomic_write_barrier() atomic_full_barrier ()
+#endif
+
+#ifndef DEFAULT_TOP_PAD
+# define DEFAULT_TOP_PAD 131072
+#endif
+
+#endif /* !defined(_GENERIC_MALLOC_MACHINE_H) */