1  /* wcpncpy variant information on S/390 version.
       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  #if defined USE_MULTIARCH && IS_IN (libc)		\
      20    && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
      21  # define HAVE_WCPNCPY_IFUNC	1
      22  #else
      23  # define HAVE_WCPNCPY_IFUNC	0
      24  #endif
      25  
      26  #ifdef HAVE_S390_VX_ASM_SUPPORT
      27  # define HAVE_WCPNCPY_IFUNC_AND_VX_SUPPORT HAVE_WCPNCPY_IFUNC
      28  #else
      29  # define HAVE_WCPNCPY_IFUNC_AND_VX_SUPPORT 0
      30  #endif
      31  
      32  #if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
      33  # define WCPNCPY_DEFAULT	WCPNCPY_Z13
      34  /* The z13 ifunc variant is using the common code variant as fallback!  */
      35  # define HAVE_WCPNCPY_C		1
      36  # define HAVE_WCPNCPY_Z13	1
      37  #else
      38  # define WCPNCPY_DEFAULT	WCPNCPY_C
      39  # define HAVE_WCPNCPY_C		1
      40  # define HAVE_WCPNCPY_Z13	HAVE_WCPNCPY_IFUNC_AND_VX_SUPPORT
      41  #endif
      42  
      43  #if HAVE_WCPNCPY_C
      44  # define WCPNCPY_C		__wcpncpy_c
      45  #else
      46  # define WCPNCPY_C		NULL
      47  #endif
      48  
      49  #if HAVE_WCPNCPY_Z13
      50  # define WCPNCPY_Z13		__wcpncpy_vx
      51  #else
      52  # define WCPNCPY_Z13		NULL
      53  #endif