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[thirdparty/glibc.git] / sysdeps / i386 / i686 / multiarch / memcpy.c

/* Multiple versions of memcpy.
   All versions must be listed in ifunc-impl-list.c.
   Copyright (C) 2017-2019 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
   <https://www.gnu.org/licenses/>.  */

/* Define multiple versions only for the definition in lib and for
   DSO.  In static binaries we need memcpy before the initialization
   happened.  */
#if defined SHARED && IS_IN (libc)
# define memcpy __redirect_memcpy
# include <string.h>
# undef memcpy

# define SYMBOL_NAME memcpy
# include "ifunc-memmove.h"

libc_ifunc_redirected (__redirect_memcpy, memcpy, IFUNC_SELECTOR ());
#endif