sysdeps/powerpc/powerpc64/multiarch/strcpy.c

   1 /* Multiple versions of strcpy. PowerPC64 version.
   2    Copyright (C) 2013-2024 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    <https://www.gnu.org/licenses/>.  */
  18
  19 #if defined SHARED && IS_IN (libc)
  20 # define strcpy __redirect_strcpy
  21 # include <string.h>
  22 # include <shlib-compat.h>
  23 # include "init-arch.h"
  24
  25 extern __typeof (strcpy) __strcpy_ppc attribute_hidden;
  26 extern __typeof (strcpy) __strcpy_power7 attribute_hidden;
  27 extern __typeof (strcpy) __strcpy_power8 attribute_hidden;
  28 # ifdef __LITTLE_ENDIAN__
  29 extern __typeof (strcpy) __strcpy_power9 attribute_hidden;
  30 # endif
  31 #undef strcpy
  32
  33 libc_ifunc_redirected (__redirect_strcpy, strcpy,
  34 # ifdef __LITTLE_ENDIAN__
  35                         (hwcap2 & PPC_FEATURE2_ARCH_3_00
  36                          && hwcap & PPC_FEATURE_HAS_VSX)
  37                         ? __strcpy_power9 :
  38 # endif
  39                        (hwcap2 & PPC_FEATURE2_ARCH_2_07
  40                         && hwcap & PPC_FEATURE_HAS_ALTIVEC)
  41                        ? __strcpy_power8
  42                        : (hwcap & PPC_FEATURE_ARCH_2_06
  43                           && hwcap & PPC_FEATURE_HAS_VSX)
  44                          ? __strcpy_power7
  45                          : __strcpy_ppc);
  46 #endif