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

Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/math/cabsl.c b/ap/libc/glibc/glibc-2.23/math/cabsl.c
new file mode 100644
index 0000000..d87e3a2
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/math/cabsl.c
@@ -0,0 +1,28 @@
+/* Return the complex absolute value of long double complex value.
+   Copyright (C) 1997-2016 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+   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 <complex.h>
+#include <math.h>
+
+long double
+__cabsl (long double _Complex z)
+{
+  return __hypotl (__real__ z, __imag__ z);
+}
+weak_alias (__cabsl, cabsl)