1 /* Multiple versions of memcmp. 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 /* Define multiple versions only for definition in libc. */ 20 #if IS_IN (libc) 21 # define memcmp __redirect_memcmp 22 # include <string.h> 23 # include <shlib-compat.h> 24 # include "init-arch.h" 25 26 extern __typeof (memcmp) __memcmp_ppc attribute_hidden; 27 extern __typeof (memcmp) __memcmp_power4 attribute_hidden; 28 extern __typeof (memcmp) __memcmp_power7 attribute_hidden; 29 extern __typeof (memcmp) __memcmp_power8 attribute_hidden; 30 extern __typeof (memcmp) __memcmp_power10 attribute_hidden; 31 # undef memcmp 32 33 /* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle 34 ifunc symbol properly. */ 35 libc_ifunc_redirected (__redirect_memcmp, memcmp, 36 #ifdef __LITTLE_ENDIAN__ 37 (hwcap2 & PPC_FEATURE2_ARCH_3_1 38 && hwcap & PPC_FEATURE_HAS_VSX) 39 ? __memcmp_power10 : 40 #endif 41 (hwcap2 & PPC_FEATURE2_ARCH_2_07 42 && hwcap & PPC_FEATURE_HAS_ALTIVEC) 43 ? __memcmp_power8 : 44 (hwcap & PPC_FEATURE_ARCH_2_06) 45 ? __memcmp_power7 46 : (hwcap & PPC_FEATURE_POWER4) 47 ? __memcmp_power4 48 : __memcmp_ppc); 49 #else 50 #include <string/memcmp.c> 51 #endif 52