[Feature][ZXW-33]merge ZXW 0428 version
Change-Id: I11f167edfea428d9fab198ff00ff1364932d1b0b
diff --git a/ap/libc/glibc/glibc-2.23/sysdeps/tile/ffs.c b/ap/libc/glibc/glibc-2.23/sysdeps/tile/ffs.c
new file mode 100644
index 0000000..88c8fc7
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/sysdeps/tile/ffs.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
+
+ 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 <limits.h>
+#define ffsl __something_else
+#include <string.h>
+
+#undef ffs
+int
+__ffs (int x)
+{
+ return __builtin_ffs (x);
+}
+weak_alias (__ffs, ffs)
+libc_hidden_def (__ffs)
+libc_hidden_builtin_def (ffs)
+
+#if ULONG_MAX == UINT_MAX
+#undef ffsl
+weak_alias (__ffs, ffsl)
+#endif