1 /* Multiple versions of memset. AARCH64 version. 2 Copyright (C) 2017-2022 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 the definition in libc. */ 20 21 #if IS_IN (libc) 22 /* Redefine memset so that the compiler won't complain about the type 23 mismatch with the IFUNC selector in strong_alias, below. */ 24 # undef memset 25 # define memset __redirect_memset 26 # include <string.h> 27 # include <init-arch.h> 28 29 extern __typeof (__redirect_memset) __libc_memset; 30 31 extern __typeof (__redirect_memset) __memset_falkor attribute_hidden; 32 extern __typeof (__redirect_memset) __memset_emag attribute_hidden; 33 extern __typeof (__redirect_memset) __memset_kunpeng attribute_hidden; 34 # if HAVE_AARCH64_SVE_ASM 35 extern __typeof (__redirect_memset) __memset_a64fx attribute_hidden; 36 # endif 37 extern __typeof (__redirect_memset) __memset_generic attribute_hidden; 38 39 libc_ifunc (__libc_memset, 40 IS_KUNPENG920 (midr) 41 ?__memset_kunpeng 42 : ((IS_FALKOR (midr) || IS_PHECDA (midr)) && zva_size == 64 43 ? __memset_falkor 44 : (IS_EMAG (midr) && zva_size == 64 45 ? __memset_emag 46 # if HAVE_AARCH64_SVE_ASM 47 : (IS_A64FX (midr) && sve 48 ? __memset_a64fx 49 : __memset_generic)))); 50 # else 51 : __memset_generic))); 52 # endif 53 54 # undef memset 55 strong_alias (__libc_memset, memset); 56 #endif 57