1 files changed, 34 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strlen.c b/sysdeps/x86_64/multiarch/strlen.c
new file mode 100644
index 0000000000..1758d22b8f
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/strlen.c
@@ -0,0 +1,34 @@
+/* Multiple versions of strlen.
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2017-2018 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/>.  */
+
+/* Define multiple versions only for the definition in libc.  */
+#if IS_IN (libc)
+# define strlen __redirect_strlen
+# include <string.h>
+# undef strlen
+
+# define SYMBOL_NAME strlen
+# include "ifunc-avx2.h"
+
+libc_ifunc_redirected (__redirect_strlen, strlen, IFUNC_SELECTOR ());
+# ifdef SHARED
+__hidden_ver1 (strlen, __GI_strlen, __redirect_strlen)
+  __attribute__((visibility ("hidden")));
+# endif
+#endif