secure/lib/libcrypto/asm/x86cpuid.s

   1 .file   "x86cpuid.s"
   2 .text
   3 .globl  OPENSSL_ia32_cpuid
   4 .type   OPENSSL_ia32_cpuid,@function
   5 .align  16
   6 OPENSSL_ia32_cpuid:
   7 .L_OPENSSL_ia32_cpuid_begin:
   8         pushl   %ebp
   9         pushl   %ebx
  10         pushl   %esi
  11         pushl   %edi
  12         xorl    %edx,%edx
  13         pushfl
  14         popl    %eax
  15         movl    %eax,%ecx
  16         xorl    $2097152,%eax
  17         pushl   %eax
  18         popfl
  19         pushfl
  20         popl    %eax
  21         xorl    %eax,%ecx
  22         xorl    %eax,%eax
  23         btl     $21,%ecx
  24         jnc     .L000nocpuid
  25         .byte   0x0f,0xa2
  26         movl    %eax,%edi
  27         xorl    %eax,%eax
  28         cmpl    $1970169159,%ebx
  29         setne   %al
  30         movl    %eax,%ebp
  31         cmpl    $1231384169,%edx
  32         setne   %al
  33         orl     %eax,%ebp
  34         cmpl    $1818588270,%ecx
  35         setne   %al
  36         orl     %eax,%ebp
  37         jz      .L001intel
  38         cmpl    $1752462657,%ebx
  39         setne   %al
  40         movl    %eax,%esi
  41         cmpl    $1769238117,%edx
  42         setne   %al
  43         orl     %eax,%esi
  44         cmpl    $1145913699,%ecx
  45         setne   %al
  46         orl     %eax,%esi
  47         jnz     .L001intel
  48         movl    $2147483648,%eax
  49         .byte   0x0f,0xa2
  50         cmpl    $2147483649,%eax
  51         jb      .L001intel
  52         movl    %eax,%esi
  53         movl    $2147483649,%eax
  54         .byte   0x0f,0xa2
  55         orl     %ecx,%ebp
  56         andl    $2049,%ebp
  57         cmpl    $2147483656,%esi
  58         jb      .L001intel
  59         movl    $2147483656,%eax
  60         .byte   0x0f,0xa2
  61         movzbl  %cl,%esi
  62         incl    %esi
  63         movl    $1,%eax
  64         xorl    %ecx,%ecx
  65         .byte   0x0f,0xa2
  66         btl     $28,%edx
  67         jnc     .L002generic
  68         shrl    $16,%ebx
  69         andl    $255,%ebx
  70         cmpl    %esi,%ebx
  71         ja      .L002generic
  72         andl    $4026531839,%edx
  73         jmp     .L002generic
  74 .L001intel:
  75         cmpl    $4,%edi
  76         movl    $-1,%edi
  77         jb      .L003nocacheinfo
  78         movl    $4,%eax
  79         movl    $0,%ecx
  80         .byte   0x0f,0xa2
  81         movl    %eax,%edi
  82         shrl    $14,%edi
  83         andl    $4095,%edi
  84 .L003nocacheinfo:
  85         movl    $1,%eax
  86         xorl    %ecx,%ecx
  87         .byte   0x0f,0xa2
  88         andl    $3220176895,%edx
  89         cmpl    $0,%ebp
  90         jne     .L004notintel
  91         orl     $1073741824,%edx
  92         andb    $15,%ah
  93         cmpb    $15,%ah
  94         jne     .L004notintel
  95         orl     $1048576,%edx
  96 .L004notintel:
  97         btl     $28,%edx
  98         jnc     .L002generic
  99         andl    $4026531839,%edx
 100         cmpl    $0,%edi
 101         je      .L002generic
 102         orl     $268435456,%edx
 103         shrl    $16,%ebx
 104         cmpb    $1,%bl
 105         ja      .L002generic
 106         andl    $4026531839,%edx
 107 .L002generic:
 108         andl    $2048,%ebp
 109         andl    $4294965247,%ecx
 110         movl    %edx,%esi
 111         orl     %ecx,%ebp
 112         btl     $27,%ecx
 113         jnc     .L005clear_avx
 114         xorl    %ecx,%ecx
 115 .byte   15,1,208
 116         andl    $6,%eax
 117         cmpl    $6,%eax
 118         je      .L006done
 119         cmpl    $2,%eax
 120         je      .L005clear_avx
 121 .L007clear_xmm:
 122         andl    $4261412861,%ebp
 123         andl    $4278190079,%esi
 124 .L005clear_avx:
 125         andl    $4026525695,%ebp
 126 .L006done:
 127         movl    %esi,%eax
 128         movl    %ebp,%edx
 129 .L000nocpuid:
 130         popl    %edi
 131         popl    %esi
 132         popl    %ebx
 133         popl    %ebp
 134         ret
 135 .size   OPENSSL_ia32_cpuid,.-.L_OPENSSL_ia32_cpuid_begin
 136 .globl  OPENSSL_rdtsc
 137 .type   OPENSSL_rdtsc,@function
 138 .align  16
 139 OPENSSL_rdtsc:
 140 .L_OPENSSL_rdtsc_begin:
 141         xorl    %eax,%eax
 142         xorl    %edx,%edx
 143         leal    OPENSSL_ia32cap_P,%ecx
 144         btl     $4,(%ecx)
 145         jnc     .L008notsc
 146         .byte   0x0f,0x31
 147 .L008notsc:
 148         ret
 149 .size   OPENSSL_rdtsc,.-.L_OPENSSL_rdtsc_begin
 150 .globl  OPENSSL_instrument_halt
 151 .type   OPENSSL_instrument_halt,@function
 152 .align  16
 153 OPENSSL_instrument_halt:
 154 .L_OPENSSL_instrument_halt_begin:
 155         leal    OPENSSL_ia32cap_P,%ecx
 156         btl     $4,(%ecx)
 157         jnc     .L009nohalt
 158 .long   2421723150
 159         andl    $3,%eax
 160         jnz     .L009nohalt
 161         pushfl
 162         popl    %eax
 163         btl     $9,%eax
 164         jnc     .L009nohalt
 165         .byte   0x0f,0x31
 166         pushl   %edx
 167         pushl   %eax
 168         hlt
 169         .byte   0x0f,0x31
 170         subl    (%esp),%eax
 171         sbbl    4(%esp),%edx
 172         addl    $8,%esp
 173         ret
 174 .L009nohalt:
 175         xorl    %eax,%eax
 176         xorl    %edx,%edx
 177         ret
 178 .size   OPENSSL_instrument_halt,.-.L_OPENSSL_instrument_halt_begin
 179 .globl  OPENSSL_far_spin
 180 .type   OPENSSL_far_spin,@function
 181 .align  16
 182 OPENSSL_far_spin:
 183 .L_OPENSSL_far_spin_begin:
 184         pushfl
 185         popl    %eax
 186         btl     $9,%eax
 187         jnc     .L010nospin
 188         movl    4(%esp),%eax
 189         movl    8(%esp),%ecx
 190 .long   2430111262
 191         xorl    %eax,%eax
 192         movl    (%ecx),%edx
 193         jmp     .L011spin
 194 .align  16
 195 .L011spin:
 196         incl    %eax
 197         cmpl    (%ecx),%edx
 198         je      .L011spin
 199 .long   529567888
 200         ret
 201 .L010nospin:
 202         xorl    %eax,%eax
 203         xorl    %edx,%edx
 204         ret
 205 .size   OPENSSL_far_spin,.-.L_OPENSSL_far_spin_begin
 206 .globl  OPENSSL_wipe_cpu
 207 .type   OPENSSL_wipe_cpu,@function
 208 .align  16
 209 OPENSSL_wipe_cpu:
 210 .L_OPENSSL_wipe_cpu_begin:
 211         xorl    %eax,%eax
 212         xorl    %edx,%edx
 213         leal    OPENSSL_ia32cap_P,%ecx
 214         movl    (%ecx),%ecx
 215         btl     $1,(%ecx)
 216         jnc     .L012no_x87
 217         andl    $83886080,%ecx
 218         cmpl    $83886080,%ecx
 219         jne     .L013no_sse2
 220         pxor    %xmm0,%xmm0
 221         pxor    %xmm1,%xmm1
 222         pxor    %xmm2,%xmm2
 223         pxor    %xmm3,%xmm3
 224         pxor    %xmm4,%xmm4
 225         pxor    %xmm5,%xmm5
 226         pxor    %xmm6,%xmm6
 227         pxor    %xmm7,%xmm7
 228 .L013no_sse2:
 229 .long   4007259865,4007259865,4007259865,4007259865,2430851995
 230 .L012no_x87:
 231         leal    4(%esp),%eax
 232         ret
 233 .size   OPENSSL_wipe_cpu,.-.L_OPENSSL_wipe_cpu_begin
 234 .globl  OPENSSL_atomic_add
 235 .type   OPENSSL_atomic_add,@function
 236 .align  16
 237 OPENSSL_atomic_add:
 238 .L_OPENSSL_atomic_add_begin:
 239         movl    4(%esp),%edx
 240         movl    8(%esp),%ecx
 241         pushl   %ebx
 242         nop
 243         movl    (%edx),%eax
 244 .L014spin:
 245         leal    (%eax,%ecx,1),%ebx
 246         nop
 247 .long   447811568
 248         jne     .L014spin
 249         movl    %ebx,%eax
 250         popl    %ebx
 251         ret
 252 .size   OPENSSL_atomic_add,.-.L_OPENSSL_atomic_add_begin
 253 .globl  OPENSSL_indirect_call
 254 .type   OPENSSL_indirect_call,@function
 255 .align  16
 256 OPENSSL_indirect_call:
 257 .L_OPENSSL_indirect_call_begin:
 258         pushl   %ebp
 259         movl    %esp,%ebp
 260         subl    $28,%esp
 261         movl    12(%ebp),%ecx
 262         movl    %ecx,(%esp)
 263         movl    16(%ebp),%edx
 264         movl    %edx,4(%esp)
 265         movl    20(%ebp),%eax
 266         movl    %eax,8(%esp)
 267         movl    24(%ebp),%eax
 268         movl    %eax,12(%esp)
 269         movl    28(%ebp),%eax
 270         movl    %eax,16(%esp)
 271         movl    32(%ebp),%eax
 272         movl    %eax,20(%esp)
 273         movl    36(%ebp),%eax
 274         movl    %eax,24(%esp)
 275         call    *8(%ebp)
 276         movl    %ebp,%esp
 277         popl    %ebp
 278         ret
 279 .size   OPENSSL_indirect_call,.-.L_OPENSSL_indirect_call_begin
 280 .globl  OPENSSL_cleanse
 281 .type   OPENSSL_cleanse,@function
 282 .align  16
 283 OPENSSL_cleanse:
 284 .L_OPENSSL_cleanse_begin:
 285         movl    4(%esp),%edx
 286         movl    8(%esp),%ecx
 287         xorl    %eax,%eax
 288         cmpl    $7,%ecx
 289         jae     .L015lot
 290         cmpl    $0,%ecx
 291         je      .L016ret
 292 .L017little:
 293         movb    %al,(%edx)
 294         subl    $1,%ecx
 295         leal    1(%edx),%edx
 296         jnz     .L017little
 297 .L016ret:
 298         ret
 299 .align  16
 300 .L015lot:
 301         testl   $3,%edx
 302         jz      .L018aligned
 303         movb    %al,(%edx)
 304         leal    -1(%ecx),%ecx
 305         leal    1(%edx),%edx
 306         jmp     .L015lot
 307 .L018aligned:
 308         movl    %eax,(%edx)
 309         leal    -4(%ecx),%ecx
 310         testl   $-4,%ecx
 311         leal    4(%edx),%edx
 312         jnz     .L018aligned
 313         cmpl    $0,%ecx
 314         jne     .L017little
 315         ret
 316 .size   OPENSSL_cleanse,.-.L_OPENSSL_cleanse_begin
 317 .globl  OPENSSL_ia32_rdrand
 318 .type   OPENSSL_ia32_rdrand,@function
 319 .align  16
 320 OPENSSL_ia32_rdrand:
 321 .L_OPENSSL_ia32_rdrand_begin:
 322         movl    $8,%ecx
 323 .L019loop:
 324 .byte   15,199,240
 325         jc      .L020break
 326         loop    .L019loop
 327 .L020break:
 328         cmpl    $0,%eax
 329         cmovel  %ecx,%eax
 330         ret
 331 .size   OPENSSL_ia32_rdrand,.-.L_OPENSSL_ia32_rdrand_begin
 332 .comm   OPENSSL_ia32cap_P,8,4
 333 .section        .init
 334         call    OPENSSL_cpuid_setup