1 /* Symbol rediretion for loader/static initialization code.
2 Copyright (C) 2022-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #ifndef _DL_IFUNC_GENERIC_H
20 #define _DL_IFUNC_GENERIC_H
24 #include <isa-level.h>
26 #if MINIMUM_X86_ISA_LEVEL >= 4
27 # define HAVE_MEMSET_IFUNC_GENERIC "__memset_evex_unaligned"
28 #elif MINIMUM_X86_ISA_LEVEL == 3
29 # define HAVE_MEMSET_IFUNC_GENERIC "__memset_avx2_unaligned"
31 # define HAVE_MEMSET_IFUNC_GENERIC "__memset_sse2_unaligned"
34 asm ("memset = " HAVE_MEMSET_IFUNC_GENERIC
);
37 #if MINIMUM_X86_ISA_LEVEL >= 4
38 # define HAVE_MEMCMP_IFUNC_GENERIC "__memcmp_evex_movbe"
39 #elif MINIMUM_X86_ISA_LEVEL == 3
40 # define HAVE_MEMCMP_IFUNC_GENERIC "__memcmp_avx2_movbe"
42 # define HAVE_MEMCMP_IFUNC_GENERIC "__memcmp_sse2"
45 asm ("memcmp = " HAVE_MEMCMP_IFUNC_GENERIC
);