pineapple/externals/libressl/crypto/cpuid-macosx-x86_64.S

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2.7 KiB
ArmAsm
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2020-12-28 16:15:37 +01:00
#include "x86_arch.h"
.private_extern _OPENSSL_cpuid_setup
.mod_init_func
.p2align 3
.quad _OPENSSL_cpuid_setup
.private_extern _OPENSSL_ia32cap_P
.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
retq
.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 $2147483649,%eax
jb L$intel
movl %eax,%r10d
movl $2147483649,%eax
cpuid
andl $IA32CAP_MASK1_AMD_XOP,%r9d
orl $1,%r9d
cmpl $2147483656,%r10d
jb L$intel
movl $2147483656,%eax
cpuid
movzbq %cl,%r10
incq %r10
movl $1,%eax
cpuid
btl $IA32CAP_BIT0_HT,%edx
jnc L$generic
shrl $16,%ebx
cmpb %r10b,%bl
ja L$generic
xorl $IA32CAP_MASK0_HT,%edx
jmp L$generic
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
andl $(~(IA32CAP_MASK0_INTELP4 | IA32CAP_MASK0_INTEL)),%edx
cmpl $0,%r9d
jne L$notintel
orl $IA32CAP_MASK0_INTEL,%edx
andb $15,%ah
cmpb $15,%ah
jne L$notintel
orl $IA32CAP_MASK0_INTELP4,%edx
L$notintel:
btl $IA32CAP_BIT0_HT,%edx
jnc L$generic
xorl $IA32CAP_MASK0_HT,%edx
cmpl $0,%r10d
je L$generic
orl $IA32CAP_MASK0_HT,%edx
shrl $16,%ebx
cmpb $1,%bl
ja L$generic
xorl $IA32CAP_MASK0_HT,%edx
L$generic:
andl $IA32CAP_MASK1_AMD_XOP,%r9d
andl $(~IA32CAP_MASK1_AMD_XOP),%ecx
orl %ecx,%r9d
movl %edx,%r10d
btl $IA32CAP_BIT1_OSXSAVE,%r9d
jnc L$clear_avx
xorl %ecx,%ecx
.byte 0x0f,0x01,0xd0
andl $6,%eax
cmpl $6,%eax
je L$done
L$clear_avx:
movl $(~(IA32CAP_MASK1_AVX | IA32CAP_MASK1_FMA3 | IA32CAP_MASK1_AMD_XOP)),%eax
andl %eax,%r9d
L$done:
shlq $32,%r9
movl %r10d,%eax
movq %r8,%rbx
orq %r9,%rax
retq
.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
retq