1 /* strnlen variant information on S/390 version. 2 Copyright (C) 2018-2022 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_STRNLEN_IFUNC 1 22 #else 23 # define HAVE_STRNLEN_IFUNC 0 24 #endif 25 26 #ifdef HAVE_S390_VX_ASM_SUPPORT 27 # define HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT HAVE_STRNLEN_IFUNC 28 #else 29 # define HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT 0 30 #endif 31 32 #if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT 33 # define STRNLEN_DEFAULT STRNLEN_Z13 34 # define HAVE_STRNLEN_C 0 35 # define HAVE_STRNLEN_Z13 1 36 #else 37 # define STRNLEN_DEFAULT STRNLEN_C 38 # define HAVE_STRNLEN_C 1 39 # define HAVE_STRNLEN_Z13 HAVE_STRNLEN_IFUNC_AND_VX_SUPPORT 40 #endif 41 42 #if HAVE_STRNLEN_C 43 # define STRNLEN_C __strnlen_c 44 #else 45 # define STRNLEN_C NULL 46 #endif 47 48 #if HAVE_STRNLEN_Z13 49 # define STRNLEN_Z13 __strnlen_vx 50 #else 51 # define STRNLEN_Z13 NULL 52 #endif 53