diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memset_chk.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memset_chk.S | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/sysdeps/x86_64/multiarch/memset_chk.S b/sysdeps/x86_64/multiarch/memset_chk.S index 64fed3118a..9a7b270274 100644 --- a/sysdeps/x86_64/multiarch/memset_chk.S +++ b/sysdeps/x86_64/multiarch/memset_chk.S @@ -1,6 +1,6 @@ /* Multiple versions of memset_chk All versions must be listed in ifunc-impl-list.c. - Copyright (C) 2014-2015 Free Software Foundation, Inc. + Copyright (C) 2014-2016 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 @@ -22,16 +22,21 @@ /* Define multiple versions only for the definition in lib. */ #if IS_IN (libc) -# if defined SHARED && defined HAVE_AVX2_SUPPORT +# ifdef SHARED ENTRY(__memset_chk) .type __memset_chk, @gnu_indirect_function - cmpl $0, __cpu_features+KIND_OFFSET(%rip) - jne 1f - call __init_cpu_features -1: leaq __memset_chk_sse2(%rip), %rax - testl $bit_AVX2_Usable, __cpu_features+FEATURE_OFFSET+index_AVX2_Usable(%rip) + LOAD_RTLD_GLOBAL_RO_RDX + leaq __memset_chk_sse2(%rip), %rax + HAS_ARCH_FEATURE (AVX2_Usable) jz 2f leaq __memset_chk_avx2(%rip), %rax +#ifdef HAVE_AVX512_ASM_SUPPORT + HAS_ARCH_FEATURE (AVX512F_Usable) + jz 2f + HAS_ARCH_FEATURE (Prefer_No_VZEROUPPER) + jz 2f + leaq __memset_chk_avx512_no_vzeroupper(%rip), %rax +#endif 2: ret END(__memset_chk) |