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/* Multiple versions of memcpy
All versions must be listed in ifunc-impl-list.c.
Copyright (C) 2013-2017 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
<http://www.gnu.org/licenses/>. */
/* Thumb requires excess IT instructions here. */
#define NO_THUMB
#include <sysdep.h>
#include <rtld-global-offsets.h>
#if IS_IN (libc)
/* Under __ARM_NEON__, memcpy_neon.S defines the name memcpy. */
# ifndef __ARM_NEON__
.text
ENTRY(memcpy)
.type memcpy, %gnu_indirect_function
# ifdef __SOFTFP__
ldr r1, .Lmemcpy_arm
tst r0, #HWCAP_ARM_VFP
ldrne r1, .Lmemcpy_vfp
# else
ldr r1, .Lmemcpy_vfp
# endif
tst r0, #HWCAP_ARM_NEON
ldrne r1, .Lmemcpy_neon
1:
add r0, r1, pc
DO_RET(lr)
# ifdef __SOFTFP__
.Lmemcpy_arm:
.long C_SYMBOL_NAME(__memcpy_arm) - 1b - PC_OFS
# endif
.Lmemcpy_neon:
.long C_SYMBOL_NAME(__memcpy_neon) - 1b - PC_OFS
.Lmemcpy_vfp:
.long C_SYMBOL_NAME(__memcpy_vfp) - 1b - PC_OFS
END(memcpy)
libc_hidden_builtin_def (memcpy)
#endif /* Not __ARM_NEON__. */
/* These versions of memcpy are defined not to clobber any VFP or NEON
registers so they must always call the ARM variant of the memcpy code. */
strong_alias (__memcpy_arm, __aeabi_memcpy)
strong_alias (__memcpy_arm, __aeabi_memcpy4)
strong_alias (__memcpy_arm, __aeabi_memcpy8)
libc_hidden_def (__memcpy_arm)
#undef libc_hidden_builtin_def
#define libc_hidden_builtin_def(name)
#undef weak_alias
#define weak_alias(x, y)
#undef libc_hidden_def
#define libc_hidden_def(name)
#define memcpy __memcpy_arm
#endif
#include "memcpy_impl.S"
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