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/* Multiple versions of memmove. AARCH64 version.
Copyright (C) 2017-2022 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/>. */
/* Define multiple versions only for the definition in libc. */
#if IS_IN (libc)
/* Redefine memmove so that the compiler won't complain about the type
mismatch with the IFUNC selector in strong_alias, below. */
# undef memmove
# define memmove __redirect_memmove
# include <string.h>
# include <init-arch.h>
extern __typeof (__redirect_memmove) __libc_memmove;
extern __typeof (__redirect_memmove) __memmove_generic attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_simd attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_thunderx attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_thunderx2 attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_falkor attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_a64fx attribute_hidden;
extern __typeof (__redirect_memmove) __memmove_sve attribute_hidden;
static inline __typeof (__redirect_memmove) *
select_memmove_ifunc (void)
{
INIT_ARCH ();
if (IS_NEOVERSE_N1 (midr) || IS_NEOVERSE_N2 (midr))
return __memmove_simd;
if (sve && HAVE_AARCH64_SVE_ASM)
{
if (IS_A64FX (midr))
return __memmove_a64fx;
return __memmove_sve;
}
if (IS_THUNDERX (midr))
return __memmove_thunderx;
if (IS_THUNDERX2 (midr) || IS_THUNDERX2PA (midr))
return __memmove_thunderx2;
if (IS_FALKOR (midr) || IS_PHECDA (midr))
return __memmove_falkor;
return __memmove_generic;
}
libc_ifunc (__libc_memmove, select_memmove_ifunc ());
# undef memmove
strong_alias (__libc_memmove, memmove);
#endif
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