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196 lines
2.6 KiB

.mod_init_func
.p2align 3
.quad _OPENSSL_cpuid_setup
.text
.globl _OPENSSL_atomic_add
.p2align 4
_OPENSSL_atomic_add:
movl (%rdi),%eax
L$spin: leaq (%rsi,%rax,1),%r8
.byte 0xf0
cmpxchgl %r8d,(%rdi)
jne L$spin
movl %r8d,%eax
.byte 0x48,0x98
.byte 0xf3,0xc3
.globl _OPENSSL_rdtsc
.p2align 4
_OPENSSL_rdtsc:
rdtsc
shlq $32,%rdx
orq %rdx,%rax
.byte 0xf3,0xc3
.globl _OPENSSL_ia32_cpuid
.p2align 4
_OPENSSL_ia32_cpuid:
movq %rbx,%r8
xorl %eax,%eax
cpuid
movl %eax,%r11d
xorl %eax,%eax
cmpl $1970169159,%ebx
setne %al
movl %eax,%r9d
cmpl $1231384169,%edx
setne %al
orl %eax,%r9d
cmpl $1818588270,%ecx
setne %al
orl %eax,%r9d
jz L$intel
cmpl $1752462657,%ebx
setne %al
movl %eax,%r10d
cmpl $1769238117,%edx
setne %al
orl %eax,%r10d
cmpl $1145913699,%ecx
setne %al
orl %eax,%r10d
jnz L$intel
movl $2147483648,%eax
cpuid
cmpl $2147483656,%eax
jb L$intel
movl $2147483656,%eax
cpuid
movzbq %cl,%r10
incq %r10
movl $1,%eax
cpuid
btl $28,%edx
jnc L$done
shrl $16,%ebx
cmpb %r10b,%bl
ja L$done
andl $4026531839,%edx
jmp L$done
L$intel:
cmpl $4,%r11d
movl $-1,%r10d
jb L$nocacheinfo
movl $4,%eax
movl $0,%ecx
cpuid
movl %eax,%r10d
shrl $14,%r10d
andl $4095,%r10d
L$nocacheinfo:
movl $1,%eax
cpuid
cmpl $0,%r9d
jne L$notintel
orl $1048576,%edx
andb $15,%ah
cmpb $15,%ah
je L$notintel
orl $1073741824,%edx
L$notintel:
btl $28,%edx
jnc L$done
andl $4026531839,%edx
cmpl $0,%r10d
je L$done
orl $268435456,%edx
shrl $16,%ebx
cmpb $1,%bl
ja L$done
andl $4026531839,%edx
L$done:
shlq $32,%rcx
movl %edx,%eax
movq %r8,%rbx
orq %rcx,%rax
.byte 0xf3,0xc3
.globl _OPENSSL_cleanse
.p2align 4
_OPENSSL_cleanse:
xorq %rax,%rax
cmpq $15,%rsi
jae L$ot
cmpq $0,%rsi
je L$ret
L$ittle:
movb %al,(%rdi)
subq $1,%rsi
leaq 1(%rdi),%rdi
jnz L$ittle
L$ret:
.byte 0xf3,0xc3
.p2align 4
L$ot:
testq $7,%rdi
jz L$aligned
movb %al,(%rdi)
leaq -1(%rsi),%rsi
leaq 1(%rdi),%rdi
jmp L$ot
L$aligned:
movq %rax,(%rdi)
leaq -8(%rsi),%rsi
testq $-8,%rsi
leaq 8(%rdi),%rdi
jnz L$aligned
cmpq $0,%rsi
jne L$ittle
.byte 0xf3,0xc3
.globl _OPENSSL_wipe_cpu
.p2align 4
_OPENSSL_wipe_cpu:
pxor %xmm0,%xmm0
pxor %xmm1,%xmm1
pxor %xmm2,%xmm2
pxor %xmm3,%xmm3
pxor %xmm4,%xmm4
pxor %xmm5,%xmm5
pxor %xmm6,%xmm6
pxor %xmm7,%xmm7
pxor %xmm8,%xmm8
pxor %xmm9,%xmm9
pxor %xmm10,%xmm10
pxor %xmm11,%xmm11
pxor %xmm12,%xmm12
pxor %xmm13,%xmm13
pxor %xmm14,%xmm14
pxor %xmm15,%xmm15
xorq %rcx,%rcx
xorq %rdx,%rdx
xorq %rsi,%rsi
xorq %rdi,%rdi
xorq %r8,%r8
xorq %r9,%r9
xorq %r10,%r10
xorq %r11,%r11
leaq 8(%rsp),%rax
.byte 0xf3,0xc3