1  /* Default strstr implementation with vector string functions for S/390.
       2     Copyright (C) 2018-2023 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  #include <ifunc-strstr.h>
      20  
      21  #if HAVE_STRSTR_Z13
      22  # if HAVE_STRSTR_IFUNC || STRSTR_Z13_ONLY_USED_AS_FALLBACK
      23  #  define STRSTR STRSTR_Z13
      24  #  if defined SHARED && IS_IN (libc)
      25  #   undef libc_hidden_builtin_def
      26  #   if HAVE_STRSTR_C || STRSTR_Z13_ONLY_USED_AS_FALLBACK
      27  #    define libc_hidden_builtin_def(name)
      28  #   else
      29  #    define libc_hidden_builtin_def(name)		\
      30    __hidden_ver1 (__strstr_vx, __GI_strstr, __strstr_vx);
      31  #   endif
      32  #  endif
      33  # endif
      34  
      35  # include <string.h>
      36  
      37  # ifdef USE_MULTIARCH
      38  extern __typeof (strchr) __strchr_vx attribute_hidden;
      39  #  define strchr __strchr_vx
      40  
      41  extern __typeof (strlen) __strlen_vx attribute_hidden;
      42  #  define strlen __strlen_vx
      43  
      44  extern __typeof (__strnlen) __strnlen_vx attribute_hidden;
      45  #  define __strnlen __strnlen_vx
      46  
      47  extern __typeof (memcmp) __memcmp_z196 attribute_hidden;
      48  #  define memcmp __memcmp_z196
      49  # endif
      50  
      51  # include <string/strstr.c>
      52  #endif