1#!/usr/bin/env perl 2 3$flavour = shift; 4$output = shift; 5if ($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 $xlate) or 12die "can't locate x86_64-xlate.pl"; 13 14open OUT,"| \"$^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 20print<<___; 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 34OPENSSL_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 48OPENSSL_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 58OPENSSL_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 179OPENSSL_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 212print<<___ if (!$win64); 213.globl OPENSSL_wipe_cpu 214.type OPENSSL_wipe_cpu,\@abi-omnipotent 215.align 16 216OPENSSL_wipe_cpu: 217 pxor %xmm0,%xmm0 218 pxor %xmm1,%xmm1 219 pxor %xmm2,%xmm2 220 pxor %xmm3,%xmm3 221 pxor %xmm4,%xmm4 222 pxor %xmm5,%xmm5 223 pxor %xmm6,%xmm6 224 pxor %xmm7,%xmm7 225 pxor %xmm8,%xmm8 226 pxor %xmm9,%xmm9 227 pxor %xmm10,%xmm10 228 pxor %xmm11,%xmm11 229 pxor %xmm12,%xmm12 230 pxor %xmm13,%xmm13 231 pxor %xmm14,%xmm14 232 pxor %xmm15,%xmm15 233 xorq %rcx,%rcx 234 xorq %rdx,%rdx 235 xorq %rsi,%rsi 236 xorq %rdi,%rdi 237 xorq %r8,%r8 238 xorq %r9,%r9 239 xorq %r10,%r10 240 xorq %r11,%r11 241 leaq 8(%rsp),%rax 242 ret 243.size OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu 244___ 245print<<___ if ($win64); 246.globl OPENSSL_wipe_cpu 247.type OPENSSL_wipe_cpu,\@abi-omnipotent 248.align 16 249OPENSSL_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 267print<<___; 268.globl OPENSSL_ia32_rdrand 269.type OPENSSL_ia32_rdrand,\@abi-omnipotent 270.align 16 271OPENSSL_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 284close STDOUT; # flush 285