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260 lines
3.6 KiB
260 lines
3.6 KiB
10 years ago
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.private_extern _OPENSSL_cpuid_setup
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.mod_init_func
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.p2align 3
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.quad _OPENSSL_cpuid_setup
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.private_extern _OPENSSL_ia32cap_P
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.comm _OPENSSL_ia32cap_P,16,2
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.text
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.globl _OPENSSL_atomic_add
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.p2align 4
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_OPENSSL_atomic_add:
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movl (%rdi),%eax
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L$spin: leaq (%rsi,%rax,1),%r8
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.byte 0xf0
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cmpxchgl %r8d,(%rdi)
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jne L$spin
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movl %r8d,%eax
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.byte 0x48,0x98
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.byte 0xf3,0xc3
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.globl _OPENSSL_rdtsc
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.p2align 4
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_OPENSSL_rdtsc:
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rdtsc
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shlq $32,%rdx
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orq %rdx,%rax
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.byte 0xf3,0xc3
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.globl _OPENSSL_ia32_cpuid
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.p2align 4
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_OPENSSL_ia32_cpuid:
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movq %rbx,%r8
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xorl %eax,%eax
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movl %eax,8(%rdi)
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cpuid
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movl %eax,%r11d
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xorl %eax,%eax
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cmpl $1970169159,%ebx
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setne %al
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movl %eax,%r9d
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cmpl $1231384169,%edx
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setne %al
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orl %eax,%r9d
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cmpl $1818588270,%ecx
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setne %al
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orl %eax,%r9d
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jz L$intel
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cmpl $1752462657,%ebx
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setne %al
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movl %eax,%r10d
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cmpl $1769238117,%edx
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setne %al
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orl %eax,%r10d
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cmpl $1145913699,%ecx
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setne %al
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orl %eax,%r10d
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jnz L$intel
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movl $2147483648,%eax
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cpuid
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cmpl $2147483649,%eax
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jb L$intel
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movl %eax,%r10d
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movl $2147483649,%eax
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cpuid
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orl %ecx,%r9d
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andl $2049,%r9d
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cmpl $2147483656,%r10d
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jb L$intel
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movl $2147483656,%eax
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cpuid
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movzbq %cl,%r10
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incq %r10
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movl $1,%eax
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cpuid
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btl $28,%edx
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jnc L$generic
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shrl $16,%ebx
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cmpb %r10b,%bl
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ja L$generic
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andl $4026531839,%edx
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jmp L$generic
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L$intel:
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cmpl $4,%r11d
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movl $-1,%r10d
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jb L$nocacheinfo
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movl $4,%eax
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movl $0,%ecx
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cpuid
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movl %eax,%r10d
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shrl $14,%r10d
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andl $4095,%r10d
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cmpl $7,%r11d
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jb L$nocacheinfo
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movl $7,%eax
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xorl %ecx,%ecx
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cpuid
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movl %ebx,8(%rdi)
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L$nocacheinfo:
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movl $1,%eax
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cpuid
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andl $3220176895,%edx
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cmpl $0,%r9d
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jne L$notintel
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orl $1073741824,%edx
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andb $15,%ah
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cmpb $15,%ah
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jne L$notintel
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orl $1048576,%edx
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L$notintel:
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btl $28,%edx
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jnc L$generic
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andl $4026531839,%edx
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cmpl $0,%r10d
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je L$generic
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orl $268435456,%edx
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shrl $16,%ebx
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cmpb $1,%bl
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ja L$generic
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andl $4026531839,%edx
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L$generic:
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andl $2048,%r9d
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andl $4294965247,%ecx
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orl %ecx,%r9d
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movl %edx,%r10d
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btl $27,%r9d
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jnc L$clear_avx
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xorl %ecx,%ecx
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.byte 0x0f,0x01,0xd0
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andl $6,%eax
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cmpl $6,%eax
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je L$done
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L$clear_avx:
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movl $4026525695,%eax
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andl %eax,%r9d
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andl $4294967263,8(%rdi)
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L$done:
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shlq $32,%r9
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movl %r10d,%eax
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movq %r8,%rbx
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orq %r9,%rax
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.byte 0xf3,0xc3
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.globl _OPENSSL_cleanse
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.p2align 4
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_OPENSSL_cleanse:
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xorq %rax,%rax
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cmpq $15,%rsi
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jae L$ot
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cmpq $0,%rsi
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je L$ret
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L$ittle:
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movb %al,(%rdi)
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subq $1,%rsi
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leaq 1(%rdi),%rdi
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jnz L$ittle
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L$ret:
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.byte 0xf3,0xc3
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.p2align 4
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L$ot:
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testq $7,%rdi
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jz L$aligned
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movb %al,(%rdi)
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leaq -1(%rsi),%rsi
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leaq 1(%rdi),%rdi
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jmp L$ot
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L$aligned:
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movq %rax,(%rdi)
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leaq -8(%rsi),%rsi
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testq $-8,%rsi
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leaq 8(%rdi),%rdi
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jnz L$aligned
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cmpq $0,%rsi
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jne L$ittle
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.byte 0xf3,0xc3
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.globl _OPENSSL_wipe_cpu
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.p2align 4
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_OPENSSL_wipe_cpu:
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pxor %xmm0,%xmm0
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pxor %xmm1,%xmm1
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pxor %xmm2,%xmm2
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pxor %xmm3,%xmm3
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pxor %xmm4,%xmm4
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pxor %xmm5,%xmm5
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pxor %xmm6,%xmm6
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pxor %xmm7,%xmm7
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pxor %xmm8,%xmm8
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pxor %xmm9,%xmm9
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pxor %xmm10,%xmm10
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pxor %xmm11,%xmm11
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pxor %xmm12,%xmm12
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pxor %xmm13,%xmm13
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pxor %xmm14,%xmm14
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pxor %xmm15,%xmm15
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xorq %rcx,%rcx
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xorq %rdx,%rdx
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xorq %rsi,%rsi
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xorq %rdi,%rdi
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xorq %r8,%r8
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xorq %r9,%r9
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xorq %r10,%r10
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xorq %r11,%r11
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leaq 8(%rsp),%rax
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.byte 0xf3,0xc3
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.globl _OPENSSL_ia32_rdrand
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.p2align 4
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_OPENSSL_ia32_rdrand:
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movl $8,%ecx
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L$oop_rdrand:
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.byte 72,15,199,240
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jc L$break_rdrand
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loop L$oop_rdrand
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L$break_rdrand:
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cmpq $0,%rax
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cmoveq %rcx,%rax
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.byte 0xf3,0xc3
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.globl _OPENSSL_ia32_rdseed
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.p2align 4
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_OPENSSL_ia32_rdseed:
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movl $8,%ecx
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L$oop_rdseed:
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.byte 72,15,199,248
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jc L$break_rdseed
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loop L$oop_rdseed
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L$break_rdseed:
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cmpq $0,%rax
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cmoveq %rcx,%rax
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.byte 0xf3,0xc3
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