sysdeps/powerpc/powerpc64/multiarch/mempcpy.c

   1 /* Multiple versions of mempcpy.
   2    Copyright (C) 2013-2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #if IS_IN (libc)
  20 # define mempcpy __redirect_mempcpy
  21 # define __mempcpy __redirect___mempcpy
  22 # define NO_MEMPCPY_STPCPY_REDIRECT
  23 /* Omit the mempcpy inline definitions because it would redefine mempcpy.  */
  24 # define _HAVE_STRING_ARCH_mempcpy 1
  25 # include <string.h>
  26 # include <shlib-compat.h>
  27 # include "init-arch.h"
  28
  29 extern __typeof (__mempcpy) __mempcpy_ppc attribute_hidden;
  30 extern __typeof (__mempcpy) __mempcpy_power7 attribute_hidden;
  31 # undef mempcpy
  32 # undef __mempcpy
  33
  34 /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle
  35    ifunc symbol properly.  */
  36 libc_ifunc_redirected (__redirect___mempcpy, __mempcpy,
  37                        (hwcap & PPC_FEATURE_HAS_VSX)
  38                        ? __mempcpy_power7
  39                        : __mempcpy_ppc);
  40
  41 weak_alias (__mempcpy, mempcpy)
  42 #else
  43 # include <string/mempcpy.c>
  44 #endif