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235 lines
3.7 KiB
235 lines
3.7 KiB
4 years ago
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.hidden OPENSSL_cpuid_setup
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.section .init
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call OPENSSL_cpuid_setup
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.hidden OPENSSL_ia32cap_P
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.comm OPENSSL_ia32cap_P,8,4
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.text
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.globl OPENSSL_atomic_add
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.type OPENSSL_atomic_add,@function
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.align 16
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OPENSSL_atomic_add:
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movl (%rdi),%eax
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.Lspin: leaq (%rsi,%rax,1),%r8
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.byte 0xf0
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cmpxchgl %r8d,(%rdi)
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jne .Lspin
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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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.size OPENSSL_atomic_add,.-OPENSSL_atomic_add
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.globl OPENSSL_rdtsc
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.type OPENSSL_rdtsc,@function
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.align 16
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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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.size OPENSSL_rdtsc,.-OPENSSL_rdtsc
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.globl OPENSSL_ia32_cpuid
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.type OPENSSL_ia32_cpuid,@function
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.align 16
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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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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 .Lintel
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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 .Lintel
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movl $2147483648,%eax
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cpuid
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cmpl $2147483649,%eax
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jb .Lintel
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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 .Lintel
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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 .Lgeneric
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shrl $16,%ebx
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cmpb %r10b,%bl
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ja .Lgeneric
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andl $4026531839,%edx
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jmp .Lgeneric
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.Lintel:
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cmpl $4,%r11d
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movl $-1,%r10d
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jb .Lnocacheinfo
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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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.Lnocacheinfo:
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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 .Lnotintel
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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 .Lnotintel
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orl $1048576,%edx
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.Lnotintel:
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btl $28,%edx
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jnc .Lgeneric
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andl $4026531839,%edx
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cmpl $0,%r10d
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je .Lgeneric
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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 .Lgeneric
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andl $4026531839,%edx
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.Lgeneric:
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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 .Lclear_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 .Ldone
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.Lclear_avx:
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movl $4026525695,%eax
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andl %eax,%r9d
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.Ldone:
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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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.size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid
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.globl OPENSSL_cleanse
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.type OPENSSL_cleanse,@function
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.align 16
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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 .Lot
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cmpq $0,%rsi
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je .Lret
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.Little:
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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 .Little
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.Lret:
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.byte 0xf3,0xc3
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.align 16
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.Lot:
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testq $7,%rdi
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jz .Laligned
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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 .Lot
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.Laligned:
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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 .Laligned
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cmpq $0,%rsi
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jne .Little
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.byte 0xf3,0xc3
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.size OPENSSL_cleanse,.-OPENSSL_cleanse
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.globl OPENSSL_wipe_cpu
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.type OPENSSL_wipe_cpu,@function
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.align 16
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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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.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
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.globl OPENSSL_ia32_rdrand
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.type OPENSSL_ia32_rdrand,@function
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.align 16
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OPENSSL_ia32_rdrand:
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movl $8,%ecx
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.Loop_rdrand:
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.byte 72,15,199,240
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jc .Lbreak_rdrand
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loop .Loop_rdrand
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.Lbreak_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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.size OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand
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