1 2.hidden OPENSSL_cpuid_setup 3.section .init 4 call OPENSSL_cpuid_setup 5 6.hidden OPENSSL_ia32cap_P 7.comm OPENSSL_ia32cap_P,8,4 8 9.text 10 11.globl OPENSSL_atomic_add 12.type OPENSSL_atomic_add,@function 13.align 16 14OPENSSL_atomic_add: 15 movl (%rdi),%eax 16.Lspin: leaq (%rsi,%rax,1),%r8 17.byte 0xf0 18 cmpxchgl %r8d,(%rdi) 19 jne .Lspin 20 movl %r8d,%eax 21.byte 0x48,0x98 22 .byte 0xf3,0xc3 23.size OPENSSL_atomic_add,.-OPENSSL_atomic_add 24 25.globl OPENSSL_rdtsc 26.type OPENSSL_rdtsc,@function 27.align 16 28OPENSSL_rdtsc: 29 rdtsc 30 shlq $32,%rdx 31 orq %rdx,%rax 32 .byte 0xf3,0xc3 33.size OPENSSL_rdtsc,.-OPENSSL_rdtsc 34 35.globl OPENSSL_ia32_cpuid 36.type OPENSSL_ia32_cpuid,@function 37.align 16 38OPENSSL_ia32_cpuid: 39 movq %rbx,%r8 40 41 xorl %eax,%eax 42 cpuid 43 movl %eax,%r11d 44 45 xorl %eax,%eax 46 cmpl $1970169159,%ebx 47 setne %al 48 movl %eax,%r9d 49 cmpl $1231384169,%edx 50 setne %al 51 orl %eax,%r9d 52 cmpl $1818588270,%ecx 53 setne %al 54 orl %eax,%r9d 55 jz .Lintel 56 57 cmpl $1752462657,%ebx 58 setne %al 59 movl %eax,%r10d 60 cmpl $1769238117,%edx 61 setne %al 62 orl %eax,%r10d 63 cmpl $1145913699,%ecx 64 setne %al 65 orl %eax,%r10d 66 jnz .Lintel 67 68 69 movl $2147483648,%eax 70 cpuid 71 cmpl $2147483649,%eax 72 jb .Lintel 73 movl %eax,%r10d 74 movl $2147483649,%eax 75 cpuid 76 orl %ecx,%r9d 77 andl $2049,%r9d 78 79 cmpl $2147483656,%r10d 80 jb .Lintel 81 82 movl $2147483656,%eax 83 cpuid 84 movzbq %cl,%r10 85 incq %r10 86 87 movl $1,%eax 88 cpuid 89 btl $28,%edx 90 jnc .Lgeneric 91 shrl $16,%ebx 92 cmpb %r10b,%bl 93 ja .Lgeneric 94 andl $4026531839,%edx 95 jmp .Lgeneric 96 97.Lintel: 98 cmpl $4,%r11d 99 movl $-1,%r10d 100 jb .Lnocacheinfo 101 102 movl $4,%eax 103 movl $0,%ecx 104 cpuid 105 movl %eax,%r10d 106 shrl $14,%r10d 107 andl $4095,%r10d 108 109.Lnocacheinfo: 110 movl $1,%eax 111 cpuid 112 andl $3220176895,%edx 113 cmpl $0,%r9d 114 jne .Lnotintel 115 orl $1073741824,%edx 116 andb $15,%ah 117 cmpb $15,%ah 118 jne .Lnotintel 119 orl $1048576,%edx 120.Lnotintel: 121 btl $28,%edx 122 jnc .Lgeneric 123 andl $4026531839,%edx 124 cmpl $0,%r10d 125 je .Lgeneric 126 127 orl $268435456,%edx 128 shrl $16,%ebx 129 cmpb $1,%bl 130 ja .Lgeneric 131 andl $4026531839,%edx 132.Lgeneric: 133 andl $2048,%r9d 134 andl $4294965247,%ecx 135 orl %ecx,%r9d 136 137 movl %edx,%r10d 138 btl $27,%r9d 139 jnc .Lclear_avx 140 xorl %ecx,%ecx 141.byte 0x0f,0x01,0xd0 142 andl $6,%eax 143 cmpl $6,%eax 144 je .Ldone 145.Lclear_avx: 146 movl $4026525695,%eax 147 andl %eax,%r9d 148.Ldone: 149 shlq $32,%r9 150 movl %r10d,%eax 151 movq %r8,%rbx 152 orq %r9,%rax 153 .byte 0xf3,0xc3 154.size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid 155 156.globl OPENSSL_cleanse 157.type OPENSSL_cleanse,@function 158.align 16 159OPENSSL_cleanse: 160 xorq %rax,%rax 161 cmpq $15,%rsi 162 jae .Lot 163 cmpq $0,%rsi 164 je .Lret 165.Little: 166 movb %al,(%rdi) 167 subq $1,%rsi 168 leaq 1(%rdi),%rdi 169 jnz .Little 170.Lret: 171 .byte 0xf3,0xc3 172.align 16 173.Lot: 174 testq $7,%rdi 175 jz .Laligned 176 movb %al,(%rdi) 177 leaq -1(%rsi),%rsi 178 leaq 1(%rdi),%rdi 179 jmp .Lot 180.Laligned: 181 movq %rax,(%rdi) 182 leaq -8(%rsi),%rsi 183 testq $-8,%rsi 184 leaq 8(%rdi),%rdi 185 jnz .Laligned 186 cmpq $0,%rsi 187 jne .Little 188 .byte 0xf3,0xc3 189.size OPENSSL_cleanse,.-OPENSSL_cleanse 190.globl OPENSSL_wipe_cpu 191.type OPENSSL_wipe_cpu,@function 192.align 16 193OPENSSL_wipe_cpu: 194 pxor %xmm0,%xmm0 195 pxor %xmm1,%xmm1 196 pxor %xmm2,%xmm2 197 pxor %xmm3,%xmm3 198 pxor %xmm4,%xmm4 199 pxor %xmm5,%xmm5 200 pxor %xmm6,%xmm6 201 pxor %xmm7,%xmm7 202 pxor %xmm8,%xmm8 203 pxor %xmm9,%xmm9 204 pxor %xmm10,%xmm10 205 pxor %xmm11,%xmm11 206 pxor %xmm12,%xmm12 207 pxor %xmm13,%xmm13 208 pxor %xmm14,%xmm14 209 pxor %xmm15,%xmm15 210 xorq %rcx,%rcx 211 xorq %rdx,%rdx 212 xorq %rsi,%rsi 213 xorq %rdi,%rdi 214 xorq %r8,%r8 215 xorq %r9,%r9 216 xorq %r10,%r10 217 xorq %r11,%r11 218 leaq 8(%rsp),%rax 219 .byte 0xf3,0xc3 220.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu 221.globl OPENSSL_ia32_rdrand 222.type OPENSSL_ia32_rdrand,@function 223.align 16 224OPENSSL_ia32_rdrand: 225 movl $8,%ecx 226.Loop_rdrand: 227.byte 72,15,199,240 228 jc .Lbreak_rdrand 229 loop .Loop_rdrand 230.Lbreak_rdrand: 231 cmpq $0,%rax 232 cmoveq %rcx,%rax 233 .byte 0xf3,0xc3 234.size OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand 235