[Feature][ZXW-33]merge ZXW 0428 version

Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/setjmp/bsd-_setjmp.c b/ap/libc/glibc/glibc-2.23/setjmp/bsd-_setjmp.c
new file mode 100644
index 0000000..a710d90
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/setjmp/bsd-_setjmp.c
@@ -0,0 +1,34 @@
+/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'.  Stub version.
+   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/>.  */
+
+#include <sysdep.h>
+#include <setjmp.h>
+
+#undef _setjmp
+
+/* This implementation in C will not usually work, because the call
+   really needs to be a tail-call so __sigsetjmp saves the state of
+   the caller, not the state of this `setjmp' frame which then
+   immediate unwinds.  */
+
+int
+_setjmp (jmp_buf env)
+{
+  return __sigsetjmp (env, 0);
+}
+libc_hidden_def (_setjmp)