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/* Multiple versions of __memcpy_chk
All versions must be listed in ifunc-impl-list.c.
Copyright (C) 2010-2015 Free Software Foundation, Inc.
Contributed by Intel Corporation.
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/>. */
#include <sysdep.h>
#include <init-arch.h>
/* Define multiple versions only for the definition in lib and for
DSO. There are no multiarch memcpy functions for static binaries.
*/
#if IS_IN (libc)
# ifdef SHARED
.text
ENTRY(__memcpy_chk)
.type __memcpy_chk, @gnu_indirect_function
cmpl $0, KIND_OFFSET+__cpu_features(%rip)
jne 1f
call __init_cpu_features
1: leaq __memcpy_chk_sse2(%rip), %rax
testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip)
jz 2f
leaq __memcpy_chk_ssse3(%rip), %rax
testl $bit_Fast_Copy_Backward, __cpu_features+FEATURE_OFFSET+index_Fast_Copy_Backward(%rip)
jz 2f
leaq __memcpy_chk_ssse3_back(%rip), %rax
testl $bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip)
jz 2f
leaq __memcpy_chk_avx_unaligned(%rip), %rax
2: ret
END(__memcpy_chk)
# else
# include "../memcpy_chk.S"
# endif
#endif
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