diff options
Diffstat (limited to 'sysdeps/i386/i686/multiarch/memset_chk.S')
| -rw-r--r-- | sysdeps/i386/i686/multiarch/memset_chk.S | 42 |
1 files changed, 9 insertions, 33 deletions
diff --git a/sysdeps/i386/i686/multiarch/memset_chk.S b/sysdeps/i386/i686/multiarch/memset_chk.S index a770c0d9e2..d18b53f7e3 100644 --- a/sysdeps/i386/i686/multiarch/memset_chk.S +++ b/sysdeps/i386/i686/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) 2010-2015 Free Software Foundation, Inc. + Copyright (C) 2010-2016 Free Software Foundation, Inc. Contributed by Intel Corporation. This file is part of the GNU C Library. @@ -23,50 +23,26 @@ /* Define multiple versions only for the definition in lib. */ #if IS_IN (libc) -# ifdef SHARED .text ENTRY(__memset_chk) .type __memset_chk, @gnu_indirect_function - pushl %ebx - cfi_adjust_cfa_offset (4) - cfi_rel_offset (ebx, 0) - LOAD_PIC_REG(bx) - cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) - jne 1f - call __init_cpu_features -1: leal __memset_chk_ia32@GOTOFF(%ebx), %eax - testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx) + LOAD_GOT_AND_RTLD_GLOBAL_RO + LOAD_FUNC_GOT_EAX (__memset_chk_ia32) + HAS_CPU_FEATURE (SSE2) jz 2f - leal __memset_chk_sse2@GOTOFF(%ebx), %eax - testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features@GOTOFF(%ebx) + LOAD_FUNC_GOT_EAX (__memset_chk_sse2) + HAS_CPU_FEATURE (Fast_Rep_String) jz 2f - leal __memset_chk_sse2_rep@GOTOFF(%ebx), %eax -2: popl %ebx - cfi_adjust_cfa_offset (-4) - cfi_restore (ebx) - ret + LOAD_FUNC_GOT_EAX (__memset_chk_sse2_rep) +2: ret END(__memset_chk) +# ifdef SHARED strong_alias (__memset_chk, __memset_zero_constant_len_parameter) .section .gnu.warning.__memset_zero_constant_len_parameter .string "memset used with constant zero length parameter; this could be due to transposed parameters" # else .text -ENTRY(__memset_chk) - .type __memset_chk, @gnu_indirect_function - cmpl $0, KIND_OFFSET+__cpu_features - jne 1f - call __init_cpu_features -1: leal __memset_chk_ia32, %eax - testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features - jz 2f - leal __memset_chk_sse2, %eax - testl $bit_Fast_Rep_String, FEATURE_OFFSET+index_Fast_Rep_String+__cpu_features - jz 2f - leal __memset_chk_sse2_rep, %eax -2: ret -END(__memset_chk) - .type __memset_chk_sse2, @function .p2align 4; __memset_chk_sse2: |