diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memmove_chk.c')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memmove_chk.c | 37 |
1 files changed, 11 insertions, 26 deletions
diff --git a/sysdeps/x86_64/multiarch/memmove_chk.c b/sysdeps/x86_64/multiarch/memmove_chk.c index f64da63180..0e9dc7e07f 100644 --- a/sysdeps/x86_64/multiarch/memmove_chk.c +++ b/sysdeps/x86_64/multiarch/memmove_chk.c @@ -1,6 +1,6 @@ -/* Multiple versions of __memmove_chk. +/* Multiple versions of __memmove_chk All versions must be listed in ifunc-impl-list.c. - Copyright (C) 2010-2016 Free Software Foundation, Inc. + Copyright (C) 2017-2018 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 @@ -17,30 +17,15 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <string.h> -#include "init-arch.h" +/* Define multiple versions only for the definition in libc.so. */ +#if IS_IN (libc) && defined SHARED +# define __memmove_chk __redirect_memmove_chk +# include <string.h> +# undef __memmove_chk -#define MEMMOVE_CHK __memmove_chk_sse2 +# define SYMBOL_NAME memmove_chk +# include "ifunc-memmove.h" -extern __typeof (__memmove_chk) __memmove_chk_sse2 attribute_hidden; -extern __typeof (__memmove_chk) __memmove_chk_ssse3 attribute_hidden; -extern __typeof (__memmove_chk) __memmove_chk_ssse3_back attribute_hidden; -extern __typeof (__memmove_chk) __memmove_chk_avx_unaligned attribute_hidden; -# ifdef HAVE_AVX512_ASM_SUPPORT - extern __typeof (__memmove_chk) __memmove_chk_avx512_no_vzeroupper attribute_hidden; -# endif - -#include "debug/memmove_chk.c" - -libc_ifunc (__memmove_chk, -#ifdef HAVE_AVX512_ASM_SUPPORT - HAS_ARCH_FEATURE (AVX512F_Usable) - && HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER) - ? __memmove_chk_avx512_no_vzeroupper - : +libc_ifunc_redirected (__redirect_memmove_chk, __memmove_chk, + IFUNC_SELECTOR ()); #endif - HAS_ARCH_FEATURE (AVX_Fast_Unaligned_Load) ? __memmove_chk_avx_unaligned : - (HAS_CPU_FEATURE (SSSE3) - ? (HAS_ARCH_FEATURE (Fast_Copy_Backward) - ? __memmove_chk_ssse3_back : __memmove_chk_ssse3) - : __memmove_chk_sse2)); |