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

Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/bits/uio.h b/ap/libc/glibc/glibc-2.23/bits/uio.h
new file mode 100644
index 0000000..5d3e484
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/bits/uio.h
@@ -0,0 +1,31 @@
+/* Copyright (C) 1996-2016 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 _SYS_UIO_H
+# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead."
+#endif
+
+
+/* `struct iovec' -- Structure describing a section of memory.  */
+
+struct iovec
+{
+  /* Starting address.  */
+  __ptr_t iov_base;
+  /* Length in bytes.  */
+  size_t iov_len;
+};