1 /* ISA level static dispatch for wcscpy .S files.
2 Copyright (C) 2022-2023 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 /* wcscpy non-multiarch build is split into two files,
20 wcscpy-generic.c and wcscpy.S. The wcscpy.S build is for
21 ISA level >= 2 uses the optimized assembly implementations in
22 multiarch/wcscpy*.S. This must be split into two files because
23 we cannot include C code from assembly or vice versa. */
25 #include <isa-level.h>
27 #if MINIMUM_X86_ISA_LEVEL >= 2
29 # define WCSCPY __wcscpy
31 # define DEFAULT_IMPL_V4 "multiarch/wcscpy-evex.S"
32 # define DEFAULT_IMPL_V3 "multiarch/wcscpy-avx2.S"
33 # define DEFAULT_IMPL_V2 "multiarch/wcscpy-ssse3.S"
34 /* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
35 should never be used from here. */
36 # define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL"
38 # include "isa-default-impl.h"
40 weak_alias (__wcscpy, wcscpy)
41 libc_hidden_def (__wcscpy)