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[thirdparty/glibc.git] / sysdeps / powerpc / powerpc64 / multiarch / memmove.c

/* Multiple versions of memmove. PowerPC64 version.
   Copyright (C) 2014-2019 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
   <http://www.gnu.org/licenses/>.  */

/* Define multiple versions only for the definition in lib and for
   DSO.  In static binaries we need memmove before the initialization
   happened.  */
#if defined SHARED && IS_IN (libc)
/* Redefine memmove so that the compiler won't complain about the type
   mismatch with the IFUNC selector in strong_alias, below.  */
# undef memmove
# define memmove __redirect_memmove
# include <string.h>
# include "init-arch.h"

extern __typeof (__redirect_memmove) __libc_memmove;

extern __typeof (__redirect_memmove) __memmove_ppc attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_power7 attribute_hidden;

libc_ifunc (__libc_memmove,
            (hwcap & PPC_FEATURE_HAS_VSX)
            ? __memmove_power7
            : __memmove_ppc);

#undef memmove
strong_alias (__libc_memmove, memmove);
libc_hidden_ver (__libc_memmove, memmove);
#else
# include <string/memmove.c>
#endif