1 /* Multiple versions of strlen. PowerPC64 version. 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 defined SHARED && IS_IN (libc) 20 /* Redefine strlen so that the compiler won't complain about the type 21 mismatch with the IFUNC selector in strong_alias, below. */ 22 # undef strlen 23 # define strlen __redirect_strlen 24 # include <string.h> 25 # include <shlib-compat.h> 26 # include "init-arch.h" 27 28 extern __typeof (__redirect_strlen) __libc_strlen; 29 30 extern __typeof (__redirect_strlen) __strlen_ppc attribute_hidden; 31 extern __typeof (__redirect_strlen) __strlen_power7 attribute_hidden; 32 extern __typeof (__redirect_strlen) __strlen_power8 attribute_hidden; 33 extern __typeof (__redirect_strlen) __strlen_power9 attribute_hidden; 34 extern __typeof (__redirect_strlen) __strlen_power10 attribute_hidden; 35 36 libc_ifunc (__libc_strlen, 37 # ifdef __LITTLE_ENDIAN__ 38 (hwcap2 & PPC_FEATURE2_ARCH_3_1 39 && hwcap & PPC_FEATURE_HAS_VSX) 40 ? __strlen_power10 : 41 (hwcap2 & PPC_FEATURE2_ARCH_3_00 42 && hwcap & PPC_FEATURE_HAS_VSX) 43 ? __strlen_power9 : 44 # endif 45 (hwcap2 & PPC_FEATURE2_ARCH_2_07 46 && hwcap & PPC_FEATURE_HAS_ALTIVEC) 47 ? __strlen_power8 : 48 (hwcap & PPC_FEATURE_ARCH_2_06) 49 ? __strlen_power7 50 : __strlen_ppc); 51 52 #undef strlen 53 strong_alias (__libc_strlen, strlen) 54 libc_hidden_ver (__libc_strlen, strlen) 55 #endif 56