glibc/sysdeps/aarch64/multiarch/memcpy_generic.S

45 lines
1.6 KiB
ArmAsm

/* A Generic Optimized memcpy implementation for AARCH64.
Copyright (C) 2017-2024 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/>. */
/* The actual memcpy and memmove code is in ../memcpy.S. If we are
building libc this file defines __memcpy_generic and __memmove_generic.
Otherwise the include of ../memcpy.S will define the normal __memcpy
and__memmove entry points. */
#include <sysdep.h>
#if IS_IN (libc)
# define MEMCPY __memcpy_generic
# define MEMMOVE __memmove_generic
/* Do not hide the generic versions of memcpy and memmove, we use them
internally. */
# undef libc_hidden_builtin_def
# define libc_hidden_builtin_def(name)
# ifdef SHARED
/* It doesn't make sense to send libc-internal memcpy calls through a PLT. */
.globl __GI_memcpy; __GI_memcpy = __memcpy_generic
.globl __GI_memmove; __GI_memmove = __memmove_generic
# endif
#endif
#include "../memcpy.S"