sysdeps/x86_64/multiarch/strrchr.c

   1 /* Multiple versions of strrchr.
   2    Copyright (C) 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 /* Define multiple versions only for the definition in libc.  */
  20 #if IS_IN (libc)
  21 # define strrchr __redirect_strrchr
  22 # include <string.h>
  23 # undef strrchr
  24
  25 # define SYMBOL_NAME strrchr
  26 # include "ifunc-avx2.h"
  27
  28 libc_ifunc_redirected (__redirect_strrchr, strrchr, IFUNC_SELECTOR ());
  29 weak_alias (strrchr, rindex);
  30 # ifdef SHARED
  31 __hidden_ver1 (strrchr, __GI_strrchr, __redirect_strrchr)
  32   __attribute__((visibility ("hidden")));
  33 # endif
  34 #endif