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b990b0aee2
Now we finally support modern GCC and binutils, it's time for a cleanup. Remove HAVE_AARCH64_SVE_ASM define and conditional compilation. Remove SVE configure checks for SVE, ACLE and variant-PCS support. Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/* Multiple versions of memcpy. AARCH64 version.
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Copyright (C) 2017-2025 Free Software Foundation, Inc.
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Copyright The GNU Toolchain Authors.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/* Define multiple versions only for the definition in libc. */
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#if IS_IN (libc)
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/* Redefine memcpy so that the compiler won't complain about the type
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mismatch with the IFUNC selector in strong_alias, below. */
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# undef memcpy
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# define memcpy __redirect_memcpy
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# include <string.h>
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# include <init-arch.h>
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extern __typeof (__redirect_memcpy) __libc_memcpy;
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extern __typeof (__redirect_memcpy) __memcpy_generic attribute_hidden;
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extern __typeof (__redirect_memcpy) __memcpy_a64fx attribute_hidden;
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extern __typeof (__redirect_memcpy) __memcpy_sve attribute_hidden;
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extern __typeof (__redirect_memcpy) __memcpy_mops attribute_hidden;
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extern __typeof (__redirect_memcpy) __memcpy_oryon1 attribute_hidden;
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static inline __typeof (__redirect_memcpy) *
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select_memcpy_ifunc (void)
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{
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INIT_ARCH ();
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if (mops)
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return __memcpy_mops;
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if (sve)
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{
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if (IS_A64FX (midr))
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return __memcpy_a64fx;
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return prefer_sve_ifuncs ? __memcpy_sve : __memcpy_generic;
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}
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if (IS_ORYON1 (midr))
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return __memcpy_oryon1;
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return __memcpy_generic;
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}
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libc_ifunc (__libc_memcpy, select_memcpy_ifunc ());
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# undef memcpy
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strong_alias (__libc_memcpy, memcpy);
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#endif
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