sysdeps/powerpc/powerpc64/multiarch/strnlen.c

   1 /* Multiple versions of strnlen.
   2    Copyright (C) 2013-2019 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 strnlen __redirect_strnlen
  21 # define __strnlen __redirect___strnlen
  22 # include <string.h>
  23 # include <shlib-compat.h>
  24 # include "init-arch.h"
  25
  26 extern __typeof (__strnlen) __strnlen_ppc attribute_hidden;
  27 extern __typeof (__strnlen) __strnlen_power7 attribute_hidden;
  28 extern __typeof (__strnlen) __strnlen_power8 attribute_hidden;
  29 # undef strnlen
  30 # undef __strnlen
  31 libc_ifunc_redirected (__redirect___strnlen, __strnlen,
  32                        (hwcap2 & PPC_FEATURE2_ARCH_2_07)
  33                        ? __strnlen_power8 :
  34                          (hwcap & PPC_FEATURE_HAS_VSX)
  35                          ? __strnlen_power7
  36                          : __strnlen_ppc);
  37 weak_alias (__strnlen, strnlen)
  38
  39 #else
  40 #include <string/strnlen.c>
  41 #endif