sysdeps/powerpc/powerpc64/multiarch/stpncpy.c

   1 /* Multiple versions of stpncpy. PowerPC64 version.
   2    Copyright (C) 2014-2023 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 IS_IN (libc)
  20 # define stpncpy __redirect_stpncpy
  21 # define __stpncpy __redirect___stpncpy
  22 # include <string.h>
  23 # include <shlib-compat.h>
  24 # include "init-arch.h"
  25
  26 extern __typeof (__stpncpy) __stpncpy_ppc attribute_hidden;
  27 extern __typeof (__stpncpy) __stpncpy_power7 attribute_hidden;
  28 extern __typeof (__stpncpy) __stpncpy_power8 attribute_hidden;
  29 # ifdef __LITTLE_ENDIAN__
  30 extern __typeof (__stpncpy) __stpncpy_power9 attribute_hidden;
  31 # endif
  32 # undef stpncpy
  33 # undef __stpncpy
  34
  35 libc_ifunc_redirected (__redirect___stpncpy, __stpncpy,
  36 # ifdef __LITTLE_ENDIAN__
  37                      (hwcap2 & PPC_FEATURE2_ARCH_3_00) &&
  38                      (hwcap & PPC_FEATURE_HAS_VSX)
  39                      ? __stpncpy_power9 :
  40 # endif
  41                        (hwcap2 & PPC_FEATURE2_ARCH_2_07)
  42                        ? __stpncpy_power8
  43                        : (hwcap & PPC_FEATURE_ARCH_2_06)
  44                          ? __stpncpy_power7
  45                          : __stpncpy_ppc);
  46 weak_alias (__stpncpy, stpncpy)
  47 #endif