glibc/sysdeps/x86_64/wcpncpy.S

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/* ISA level static dispatch for wcpcpy .S files.
Copyright (C) 2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/* wcpncpy non-multiarch build is split into two files,
wcpncpy-generic.c and wcpncpy.S. The wcpncpy-generic.c build is
for ISA level <= 1 and just uses multiarch/wcpncpy-generic.c.
This must be split into two files because we cannot include C
code from assembly or vice versa. */
#include <isa-level.h>
#if MINIMUM_X86_ISA_LEVEL >= 4
# define WCPNCPY __wcpncpy
# define DEFAULT_IMPL_V4 "multiarch/wcpncpy-evex.S"
/* isa-default-impl.h expects DEFAULT_IMPL_V1 to be defined but it
should never be used from here. */
# define DEFAULT_IMPL_V1 "ERROR -- Invalid ISA IMPL"
# include "isa-default-impl.h"
weak_alias (__wcpncpy, wcpncpy)
libc_hidden_def (__wcpncpy)
#endif