diff options
Diffstat (limited to 'sysdeps/i386/i686/multiarch/memmove_chk.S')
| -rw-r--r-- | sysdeps/i386/i686/multiarch/memmove_chk.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/sysdeps/i386/i686/multiarch/memmove_chk.S b/sysdeps/i386/i686/multiarch/memmove_chk.S index 3442ce15f1..fea9b543df 100644 --- a/sysdeps/i386/i686/multiarch/memmove_chk.S +++ b/sysdeps/i386/i686/multiarch/memmove_chk.S @@ -35,6 +35,11 @@ ENTRY(__memmove_chk) jne 1f call __init_cpu_features 1: leal __memmove_chk_ia32@GOTOFF(%ebx), %eax + testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features@GOTOFF(%ebx) + jz 2f + leal __memmove_chk_sse2_unaligned@GOTOFF(%ebx), %eax + testl $bit_Fast_Unaligned_Load, FEATURE_OFFSET+index_Fast_Unaligned_Load+__cpu_features@GOTOFF(%ebx) + jnz 2f testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features@GOTOFF(%ebx) jz 2f leal __memmove_chk_ssse3@GOTOFF(%ebx), %eax @@ -54,6 +59,11 @@ ENTRY(__memmove_chk) jne 1f call __init_cpu_features 1: leal __memmove_chk_ia32, %eax + testl $bit_SSE2, CPUID_OFFSET+index_SSE2+__cpu_features + jz 2f + leal __memmove_chk_sse2_unaligned, %eax + testl $bit_Fast_Unaligned_Load, FEATURE_OFFSET+index_Fast_Unaligned_Load+__cpu_features + jnz 2f testl $bit_SSSE3, CPUID_OFFSET+index_SSSE3+__cpu_features jz 2f leal __memmove_chk_ssse3, %eax @@ -63,6 +73,18 @@ ENTRY(__memmove_chk) 2: ret END(__memmove_chk) + .type __memmove_chk_sse2_unaligned, @function + .p2align 4; +__memmove_chk_sse2_unaligned: + cfi_startproc + CALL_MCOUNT + movl 12(%esp), %eax + cmpl %eax, 16(%esp) + jb __chk_fail + jmp __memmove_sse2_unaligned + cfi_endproc + .size __memmove_chk_sse2_unaligned, .-__memmove_chk_sse2_unaligned + .type __memmove_chk_ssse3, @function .p2align 4; __memmove_chk_ssse3: |