sysdeps/s390/ifunc-memrchr.h

   1 /* memrchr variant information on S/390 version.
   2    Copyright (C) 2018-2024 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 defined USE_MULTIARCH && IS_IN (libc)               \
  20   && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
  21 # define HAVE_MEMRCHR_IFUNC     1
  22 #else
  23 # define HAVE_MEMRCHR_IFUNC     0
  24 #endif
  25
  26 #ifdef HAVE_S390_VX_ASM_SUPPORT
  27 # define HAVE_MEMRCHR_IFUNC_AND_VX_SUPPORT HAVE_MEMRCHR_IFUNC
  28 #else
  29 # define HAVE_MEMRCHR_IFUNC_AND_VX_SUPPORT 0
  30 #endif
  31
  32 #if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
  33 # define MEMRCHR_DEFAULT        MEMRCHR_Z13
  34 # define HAVE_MEMRCHR_C         0
  35 # define HAVE_MEMRCHR_Z13       1
  36 #else
  37 # define MEMRCHR_DEFAULT        MEMRCHR_C
  38 # define HAVE_MEMRCHR_C         1
  39 # define HAVE_MEMRCHR_Z13       HAVE_MEMRCHR_IFUNC_AND_VX_SUPPORT
  40 #endif
  41
  42 #if HAVE_MEMRCHR_C
  43 # define MEMRCHR_C              __memrchr_c
  44 #else
  45 # define MEMRCHR_C              NULL
  46 #endif
  47
  48 #if HAVE_MEMRCHR_Z13
  49 # define MEMRCHR_Z13            __memrchr_vx
  50 #else
  51 # define MEMRCHR_Z13            NULL
  52 #endif