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| 1 #!/usr/bin/env perl | |
| 2 | |
| 3 $flavour = shift; | |
| 4 $output = shift; | |
| 5 if ($flavour =~ /\./) { $output = $flavour; undef $flavour; } | |
| 6 | |
| 7 $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); | |
| 8 | |
| 9 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; | |
| 10 ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or | |
| 11 ( $xlate="${dir}perlasm/x86_64-xlate.pl" and -f $xlate) or | |
| 12 die "can't locate x86_64-xlate.pl"; | |
| 13 | |
| 14 open OUT,"| \"$^X\" $xlate $flavour $output"; | |
| 15 *STDOUT=*OUT; | |
| 16 | |
| 17 ($arg1,$arg2,$arg3,$arg4)=$win64?("%rcx","%rdx","%r8", "%r9") : # Win64 order | |
| 18 ("%rdi","%rsi","%rdx","%rcx"); # Unix order | |
| 19 | |
| 20 print<<___; | |
| 21 .extern OPENSSL_cpuid_setup | |
| 22 .hidden OPENSSL_cpuid_setup | |
| 23 .section .init | |
| 24 call OPENSSL_cpuid_setup | |
| 25 | |
| 26 .hidden OPENSSL_ia32cap_P | |
| 27 .comm OPENSSL_ia32cap_P,8,4 | |
| 28 | |
| 29 .text | |
| 30 | |
| 31 .globl OPENSSL_atomic_add | |
| 32 .type OPENSSL_atomic_add,\@abi-omnipotent | |
| 33 .align 16 | |
| 34 OPENSSL_atomic_add: | |
| 35 movl ($arg1),%eax | |
| 36 .Lspin: leaq ($arg2,%rax),%r8 | |
| 37 .byte 0xf0 # lock | |
| 38 cmpxchgl %r8d,($arg1) | |
| 39 jne .Lspin | |
| 40 movl %r8d,%eax | |
| 41 .byte 0x48,0x98 # cltq/cdqe | |
| 42 ret | |
| 43 .size OPENSSL_atomic_add,.-OPENSSL_atomic_add | |
| 44 | |
| 45 .globl OPENSSL_rdtsc | |
| 46 .type OPENSSL_rdtsc,\@abi-omnipotent | |
| 47 .align 16 | |
| 48 OPENSSL_rdtsc: | |
| 49 rdtsc | |
| 50 shl \$32,%rdx | |
| 51 or %rdx,%rax | |
| 52 ret | |
| 53 .size OPENSSL_rdtsc,.-OPENSSL_rdtsc | |
| 54 | |
| 55 .globl OPENSSL_ia32_cpuid | |
| 56 .type OPENSSL_ia32_cpuid,\@abi-omnipotent | |
| 57 .align 16 | |
| 58 OPENSSL_ia32_cpuid: | |
| 59 mov %rbx,%r8 # save %rbx | |
| 60 | |
| 61 xor %eax,%eax | |
| 62 cpuid | |
| 63 mov %eax,%r11d # max value for standard query level | |
| 64 | |
| 65 xor %eax,%eax | |
| 66 cmp \$0x756e6547,%ebx # "Genu" | |
| 67 setne %al | |
| 68 mov %eax,%r9d | |
| 69 cmp \$0x49656e69,%edx # "ineI" | |
| 70 setne %al | |
| 71 or %eax,%r9d | |
| 72 cmp \$0x6c65746e,%ecx # "ntel" | |
| 73 setne %al | |
| 74 or %eax,%r9d # 0 indicates Intel CPU | |
| 75 jz .Lintel | |
| 76 | |
| 77 cmp \$0x68747541,%ebx # "Auth" | |
| 78 setne %al | |
| 79 mov %eax,%r10d | |
| 80 cmp \$0x69746E65,%edx # "enti" | |
| 81 setne %al | |
| 82 or %eax,%r10d | |
| 83 cmp \$0x444D4163,%ecx # "cAMD" | |
| 84 setne %al | |
| 85 or %eax,%r10d # 0 indicates AMD CPU | |
| 86 jnz .Lintel | |
| 87 | |
| 88 # AMD specific | |
| 89 mov \$0x80000000,%eax | |
| 90 cpuid | |
| 91 cmp \$0x80000001,%eax | |
| 92 jb .Lintel | |
| 93 mov %eax,%r10d | |
| 94 mov \$0x80000001,%eax | |
| 95 cpuid | |
| 96 or %ecx,%r9d | |
| 97 and \$0x00000801,%r9d # isolate AMD XOP bit, 1<<11 | |
| 98 | |
| 99 cmp \$0x80000008,%r10d | |
| 100 jb .Lintel | |
| 101 | |
| 102 mov \$0x80000008,%eax | |
| 103 cpuid | |
| 104 movzb %cl,%r10 # number of cores - 1 | |
| 105 inc %r10 # number of cores | |
| 106 | |
| 107 mov \$1,%eax | |
| 108 cpuid | |
| 109 bt \$28,%edx # test hyper-threading bit | |
| 110 jnc .Lgeneric | |
| 111 shr \$16,%ebx # number of logical processors | |
| 112 cmp %r10b,%bl | |
| 113 ja .Lgeneric | |
| 114 and \$0xefffffff,%edx # ~(1<<28) | |
| 115 jmp .Lgeneric | |
| 116 | |
| 117 .Lintel: | |
| 118 cmp \$4,%r11d | |
| 119 mov \$-1,%r10d | |
| 120 jb .Lnocacheinfo | |
| 121 | |
| 122 mov \$4,%eax | |
| 123 mov \$0,%ecx # query L1D | |
| 124 cpuid | |
| 125 mov %eax,%r10d | |
| 126 shr \$14,%r10d | |
| 127 and \$0xfff,%r10d # number of cores -1 per L1D | |
| 128 | |
| 129 .Lnocacheinfo: | |
| 130 mov \$1,%eax | |
| 131 cpuid | |
| 132 and \$0xbfefffff,%edx # force reserved bits to 0 | |
| 133 cmp \$0,%r9d | |
| 134 jne .Lnotintel | |
| 135 or \$0x40000000,%edx # set reserved bit#30 on Intel CPUs | |
| 136 and \$15,%ah | |
| 137 cmp \$15,%ah # examine Family ID | |
| 138 jne .Lnotintel | |
| 139 or \$0x00100000,%edx # set reserved bit#20 to engage RC4_CHAR | |
| 140 .Lnotintel: | |
| 141 bt \$28,%edx # test hyper-threading bit | |
| 142 jnc .Lgeneric | |
| 143 and \$0xefffffff,%edx # ~(1<<28) | |
| 144 cmp \$0,%r10d | |
| 145 je .Lgeneric | |
| 146 | |
| 147 or \$0x10000000,%edx # 1<<28 | |
| 148 shr \$16,%ebx | |
| 149 cmp \$1,%bl # see if cache is shared | |
| 150 ja .Lgeneric | |
| 151 and \$0xefffffff,%edx # ~(1<<28) | |
| 152 .Lgeneric: | |
| 153 and \$0x00000800,%r9d # isolate AMD XOP flag | |
| 154 and \$0xfffff7ff,%ecx | |
| 155 or %ecx,%r9d # merge AMD XOP flag | |
| 156 | |
| 157 mov %edx,%r10d # %r9d:%r10d is copy of %ecx:%edx | |
| 158 bt \$27,%r9d # check OSXSAVE bit | |
| 159 jnc .Lclear_avx | |
| 160 xor %ecx,%ecx # XCR0 | |
| 161 .byte 0x0f,0x01,0xd0 # xgetbv | |
| 162 and \$6,%eax # isolate XMM and YMM state support | |
| 163 cmp \$6,%eax | |
| 164 je .Ldone | |
| 165 .Lclear_avx: | |
| 166 mov \$0xefffe7ff,%eax # ~(1<<28|1<<12|1<<11) | |
| 167 and %eax,%r9d # clear AVX, FMA and AMD XOP bits | |
| 168 .Ldone: | |
| 169 shl \$32,%r9 | |
| 170 mov %r10d,%eax | |
| 171 mov %r8,%rbx # restore %rbx | |
| 172 or %r9,%rax | |
| 173 ret | |
| 174 .size OPENSSL_ia32_cpuid,.-OPENSSL_ia32_cpuid | |
| 175 | |
| 176 .globl OPENSSL_cleanse | |
| 177 .type OPENSSL_cleanse,\@abi-omnipotent | |
| 178 .align 16 | |
| 179 OPENSSL_cleanse: | |
| 180 xor %rax,%rax | |
| 181 cmp \$15,$arg2 | |
| 182 jae .Lot | |
| 183 cmp \$0,$arg2 | |
| 184 je .Lret | |
| 185 .Little: | |
| 186 mov %al,($arg1) | |
| 187 sub \$1,$arg2 | |
| 188 lea 1($arg1),$arg1 | |
| 189 jnz .Little | |
| 190 .Lret: | |
| 191 ret | |
| 192 .align 16 | |
| 193 .Lot: | |
| 194 test \$7,$arg1 | |
| 195 jz .Laligned | |
| 196 mov %al,($arg1) | |
| 197 lea -1($arg2),$arg2 | |
| 198 lea 1($arg1),$arg1 | |
| 199 jmp .Lot | |
| 200 .Laligned: | |
| 201 mov %rax,($arg1) | |
| 202 lea -8($arg2),$arg2 | |
| 203 test \$-8,$arg2 | |
| 204 lea 8($arg1),$arg1 | |
| 205 jnz .Laligned | |
| 206 cmp \$0,$arg2 | |
| 207 jne .Little | |
| 208 ret | |
| 209 .size OPENSSL_cleanse,.-OPENSSL_cleanse | |
| 210 ___ | |
| 211 | |
| 212 print<<___ if (!$win64); | |
| 213 .globl OPENSSL_wipe_cpu | |
| 214 .type OPENSSL_wipe_cpu,\@abi-omnipotent | |
| 215 .align 16 | |
| 216 OPENSSL_wipe_cpu: | |
| 217 pxor %xmm0,%xmm0 | |
| 218 pxor %xmm1,%xmm1 | |
| 219 pxor %xmm2,%xmm2 | |
| 220 pxor %xmm3,%xmm3 | |
| 221 pxor %xmm4,%xmm4 | |
| 222 pxor %xmm5,%xmm5 | |
| 223 pxor %xmm6,%xmm6 | |
| 224 pxor %xmm7,%xmm7 | |
| 225 pxor %xmm8,%xmm8 | |
| 226 pxor %xmm9,%xmm9 | |
| 227 pxor %xmm10,%xmm10 | |
| 228 pxor %xmm11,%xmm11 | |
| 229 pxor %xmm12,%xmm12 | |
| 230 pxor %xmm13,%xmm13 | |
| 231 pxor %xmm14,%xmm14 | |
| 232 pxor %xmm15,%xmm15 | |
| 233 xorq %rcx,%rcx | |
| 234 xorq %rdx,%rdx | |
| 235 xorq %rsi,%rsi | |
| 236 xorq %rdi,%rdi | |
| 237 xorq %r8,%r8 | |
| 238 xorq %r9,%r9 | |
| 239 xorq %r10,%r10 | |
| 240 xorq %r11,%r11 | |
| 241 leaq 8(%rsp),%rax | |
| 242 ret | |
| 243 .size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu | |
| 244 ___ | |
| 245 print<<___ if ($win64); | |
| 246 .globl OPENSSL_wipe_cpu | |
| 247 .type OPENSSL_wipe_cpu,\@abi-omnipotent | |
| 248 .align 16 | |
| 249 OPENSSL_wipe_cpu: | |
| 250 pxor %xmm0,%xmm0 | |
| 251 pxor %xmm1,%xmm1 | |
| 252 pxor %xmm2,%xmm2 | |
| 253 pxor %xmm3,%xmm3 | |
| 254 pxor %xmm4,%xmm4 | |
| 255 pxor %xmm5,%xmm5 | |
| 256 xorq %rcx,%rcx | |
| 257 xorq %rdx,%rdx | |
| 258 xorq %r8,%r8 | |
| 259 xorq %r9,%r9 | |
| 260 xorq %r10,%r10 | |
| 261 xorq %r11,%r11 | |
| 262 leaq 8(%rsp),%rax | |
| 263 ret | |
| 264 .size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu | |
| 265 ___ | |
| 266 | |
| 267 print<<___; | |
| 268 .globl OPENSSL_ia32_rdrand | |
| 269 .type OPENSSL_ia32_rdrand,\@abi-omnipotent | |
| 270 .align 16 | |
| 271 OPENSSL_ia32_rdrand: | |
| 272 mov \$8,%ecx | |
| 273 .Loop_rdrand: | |
| 274 rdrand %rax | |
| 275 jc .Lbreak_rdrand | |
| 276 loop .Loop_rdrand | |
| 277 .Lbreak_rdrand: | |
| 278 cmp \$0,%rax | |
| 279 cmove %rcx,%rax | |
| 280 ret | |
| 281 .size OPENSSL_ia32_rdrand,.-OPENSSL_ia32_rdrand | |
| 282 ___ | |
| 283 | |
| 284 close STDOUT; # flush | |
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Chromium Code Reviews
Issue 2072073002:
Delete bundled copy of OpenSSL and replace with README. (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master