diff options
Diffstat (limited to 'deps/openssl/asm/x64-elf-gas/x86_64cpuid.s')
| -rw-r--r-- | deps/openssl/asm/x64-elf-gas/x86_64cpuid.s | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/deps/openssl/asm/x64-elf-gas/x86_64cpuid.s b/deps/openssl/asm/x64-elf-gas/x86_64cpuid.s new file mode 100644 index 0000000000..0a565a989b --- /dev/null +++ b/deps/openssl/asm/x64-elf-gas/x86_64cpuid.s @@ -0,0 +1,194 @@ + +.section .init + call OPENSSL_cpuid_setup + +.text + + +.globl OPENSSL_atomic_add +.type OPENSSL_atomic_add,@function +.align 16 +OPENSSL_atomic_add: + movl (%rdi),%eax +.Lspin: leaq (%rsi,%rax,1),%r8 +.byte 0xf0 + + cmpxchgl %r8d,(%rdi) + jne .Lspin + movl %r8d,%eax +.byte 0x48,0x98 + + .byte 0xf3,0xc3 +.size OPENSSL_atomic_add,.-OPENSSL_atomic_add + +.globl OPENSSL_rdtsc +.type OPENSSL_rdtsc,@function +.align 16 +OPENSSL_rdtsc: + rdtsc + shlq $32,%rdx + orq %rdx,%rax + .byte 0xf3,0xc3 +.size OPENSSL_rdtsc,.-OPENSSL_rdtsc + +.globl OPENSSL_ia32_cpuid +.type OPENSSL_ia32_cpuid,@function +.align 16 +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 .Lintel + + 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 .Lintel + + + movl $2147483648,%eax + cpuid + cmpl $2147483656,%eax + jb .Lintel + + movl $2147483656,%eax + cpuid + movzbq %cl,%r10 + incq %r10 + + movl $1,%eax + cpuid + btl $28,%edx + jnc .Ldone + shrl $16,%ebx + cmpb %r10b,%bl + ja .Ldone + andl $4026531839,%edx + jmp .Ldone + +.Lintel: + cmpl $4,%r11d + movl $-1,%r10d + jb .Lnocacheinfo + + movl $4,%eax + movl $0,%ecx + cpuid + movl %eax,%r10d + shrl $14,%r10d + andl $4095,%r10d + +.Lnocacheinfo: + movl $1,%eax + cpuid + cmpl $0,%r9d + jne .Lnotintel + orl $1048576,%edx + andb $15,%ah + cmpb $15,%ah + je .Lnotintel + orl $1073741824,%edx +.Lnotintel: + btl $28,%edx + jnc .Ldone + andl $4026531839,%edx + cmpl $0,%r10d + je .Ldone + + orl $268435456,%edx + shrl $16,%ebx + cmpb $1,%bl + ja .Ldone + andl $4026531839,%edx +.Ldone: + shlq $32,%rcx + movl %edx,%eax + movq %r8,%rbx + orq %rcx,%rax + .byte 0xf3,0xc3 +.size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid + +.globl OPENSSL_cleanse +.type OPENSSL_cleanse,@function +.align 16 +OPENSSL_cleanse: + xorq %rax,%rax + cmpq $15,%rsi + jae .Lot + cmpq $0,%rsi + je .Lret +.Little: + movb %al,(%rdi) + subq $1,%rsi + leaq 1(%rdi),%rdi + jnz .Little +.Lret: + .byte 0xf3,0xc3 +.align 16 +.Lot: + testq $7,%rdi + jz .Laligned + movb %al,(%rdi) + leaq -1(%rsi),%rsi + leaq 1(%rdi),%rdi + jmp .Lot +.Laligned: + movq %rax,(%rdi) + leaq -8(%rsi),%rsi + testq $-8,%rsi + leaq 8(%rdi),%rdi + jnz .Laligned + cmpq $0,%rsi + jne .Little + .byte 0xf3,0xc3 +.size OPENSSL_cleanse,.-OPENSSL_cleanse +.globl OPENSSL_wipe_cpu +.type OPENSSL_wipe_cpu,@function +.align 16 +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 +.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu |