1  /* Multiple versions of memcmp.
       2     All versions must be listed in ifunc-impl-list.c.
       3     Copyright (C) 2017-2023 Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     The GNU C Library is free software; you can redistribute it and/or
       7     modify it under the terms of the GNU Lesser General Public
       8     License as published by the Free Software Foundation; either
       9     version 2.1 of the License, or (at your option) any later version.
      10  
      11     The GNU C Library is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14     Lesser General Public License for more details.
      15  
      16     You should have received a copy of the GNU Lesser General Public
      17     License along with the GNU C Library; if not, see
      18     <https://www.gnu.org/licenses/>.  */
      19  
      20  /* Define multiple versions only for the definition in libc.  */
      21  #if IS_IN (libc)
      22  # define memcmp __redirect_memcmp
      23  # include <string.h>
      24  # undef memcmp
      25  
      26  # define SYMBOL_NAME memcmp
      27  # include "ifunc-memcmp.h"
      28  
      29  libc_ifunc_redirected (__redirect_memcmp, memcmp, IFUNC_SELECTOR ());
      30  # undef bcmp
      31  weak_alias (memcmp, bcmp)
      32  
      33  # ifdef SHARED
      34  __hidden_ver1 (memcmp, __GI_memcmp, __redirect_memcmp)
      35    __attribute__ ((visibility ("hidden"))) __attribute_copy__ (memcmp);
      36  # endif
      37  #endif