1 /* Multiple versions of strnlen. 2 Copyright (C) 2013-2022 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 IS_IN (libc) 20 # define strnlen __redirect_strnlen 21 # define __strnlen __redirect___strnlen 22 # include <string.h> 23 # include <shlib-compat.h> 24 # include "init-arch.h" 25 26 extern __typeof (__strnlen) __strnlen_ppc attribute_hidden; 27 extern __typeof (__strnlen) __strnlen_power7 attribute_hidden; 28 extern __typeof (__strnlen) __strnlen_power8 attribute_hidden; 29 # undef strnlen 30 # undef __strnlen 31 libc_ifunc_redirected (__redirect___strnlen, __strnlen, 32 (hwcap2 & PPC_FEATURE2_ARCH_2_07 33 && hwcap & PPC_FEATURE_HAS_ALTIVEC) 34 ? __strnlen_power8 : 35 (hwcap & PPC_FEATURE_ARCH_2_06) 36 ? __strnlen_power7 37 : __strnlen_ppc); 38 weak_alias (__strnlen, strnlen) 39 40 #else 41 #include <string/strnlen.c> 42 #endif 43