1183234Ssimon#!/usr/bin/env perl 2183234Ssimon# 3183234Ssimon# ==================================================================== 4183234Ssimon# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL 5183234Ssimon# project. Rights for redistribution and usage in source and binary 6183234Ssimon# forms are granted according to the OpenSSL license. 7183234Ssimon# ==================================================================== 8183234Ssimon# 9183234Ssimon# sha256/512_block procedure for x86_64. 10183234Ssimon# 11183234Ssimon# 40% improvement over compiler-generated code on Opteron. On EM64T 12183234Ssimon# sha256 was observed to run >80% faster and sha512 - >40%. No magical 13183234Ssimon# tricks, just straight implementation... I really wonder why gcc 14183234Ssimon# [being armed with inline assembler] fails to generate as fast code. 15183234Ssimon# The only thing which is cool about this module is that it's very 16183234Ssimon# same instruction sequence used for both SHA-256 and SHA-512. In 17183234Ssimon# former case the instructions operate on 32-bit operands, while in 18183234Ssimon# latter - on 64-bit ones. All I had to do is to get one flavor right, 19183234Ssimon# the other one passed the test right away:-) 20183234Ssimon# 21183234Ssimon# sha256_block runs in ~1005 cycles on Opteron, which gives you 22183234Ssimon# asymptotic performance of 64*1000/1005=63.7MBps times CPU clock 23183234Ssimon# frequency in GHz. sha512_block runs in ~1275 cycles, which results 24183234Ssimon# in 128*1000/1275=100MBps per GHz. Is there room for improvement? 25183234Ssimon# Well, if you compare it to IA-64 implementation, which maintains 26183234Ssimon# X[16] in register bank[!], tends to 4 instructions per CPU clock 27183234Ssimon# cycle and runs in 1003 cycles, 1275 is very good result for 3-way 28183234Ssimon# issue Opteron pipeline and X[16] maintained in memory. So that *if* 29183234Ssimon# there is a way to improve it, *then* the only way would be to try to 30183234Ssimon# offload X[16] updates to SSE unit, but that would require "deeper" 31183234Ssimon# loop unroll, which in turn would naturally cause size blow-up, not 32183234Ssimon# to mention increased complexity! And once again, only *if* it's 33183234Ssimon# actually possible to noticeably improve overall ILP, instruction 34183234Ssimon# level parallelism, on a given CPU implementation in this case. 35183234Ssimon# 36183234Ssimon# Special note on Intel EM64T. While Opteron CPU exhibits perfect 37183234Ssimon# perfromance ratio of 1.5 between 64- and 32-bit flavors [see above], 38183234Ssimon# [currently available] EM64T CPUs apparently are far from it. On the 39183234Ssimon# contrary, 64-bit version, sha512_block, is ~30% *slower* than 32-bit 40183234Ssimon# sha256_block:-( This is presumably because 64-bit shifts/rotates 41183234Ssimon# apparently are not atomic instructions, but implemented in microcode. 42183234Ssimon 43238405Sjkim$flavour = shift; 44238405Sjkim$output = shift; 45238405Sjkimif ($flavour =~ /\./) { $output = $flavour; undef $flavour; } 46183234Ssimon 47238405Sjkim$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/); 48238405Sjkim 49183234Ssimon$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 50183234Ssimon( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or 51183234Ssimon( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or 52183234Ssimondie "can't locate x86_64-xlate.pl"; 53183234Ssimon 54246772Sjkimopen OUT,"| \"$^X\" $xlate $flavour $output"; 55246772Sjkim*STDOUT=*OUT; 56183234Ssimon 57183234Ssimonif ($output =~ /512/) { 58183234Ssimon $func="sha512_block_data_order"; 59183234Ssimon $TABLE="K512"; 60183234Ssimon $SZ=8; 61183234Ssimon @ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%rax","%rbx","%rcx","%rdx", 62183234Ssimon "%r8", "%r9", "%r10","%r11"); 63183234Ssimon ($T1,$a0,$a1,$a2)=("%r12","%r13","%r14","%r15"); 64183234Ssimon @Sigma0=(28,34,39); 65183234Ssimon @Sigma1=(14,18,41); 66183234Ssimon @sigma0=(1, 8, 7); 67183234Ssimon @sigma1=(19,61, 6); 68183234Ssimon $rounds=80; 69183234Ssimon} else { 70183234Ssimon $func="sha256_block_data_order"; 71183234Ssimon $TABLE="K256"; 72183234Ssimon $SZ=4; 73183234Ssimon @ROT=($A,$B,$C,$D,$E,$F,$G,$H)=("%eax","%ebx","%ecx","%edx", 74183234Ssimon "%r8d","%r9d","%r10d","%r11d"); 75183234Ssimon ($T1,$a0,$a1,$a2)=("%r12d","%r13d","%r14d","%r15d"); 76183234Ssimon @Sigma0=( 2,13,22); 77183234Ssimon @Sigma1=( 6,11,25); 78183234Ssimon @sigma0=( 7,18, 3); 79183234Ssimon @sigma1=(17,19,10); 80183234Ssimon $rounds=64; 81183234Ssimon} 82183234Ssimon 83183234Ssimon$ctx="%rdi"; # 1st arg 84183234Ssimon$round="%rdi"; # zaps $ctx 85183234Ssimon$inp="%rsi"; # 2nd arg 86183234Ssimon$Tbl="%rbp"; 87183234Ssimon 88183234Ssimon$_ctx="16*$SZ+0*8(%rsp)"; 89183234Ssimon$_inp="16*$SZ+1*8(%rsp)"; 90183234Ssimon$_end="16*$SZ+2*8(%rsp)"; 91183234Ssimon$_rsp="16*$SZ+3*8(%rsp)"; 92183234Ssimon$framesz="16*$SZ+4*8"; 93183234Ssimon 94183234Ssimon 95183234Ssimonsub ROUND_00_15() 96183234Ssimon{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; 97183234Ssimon 98183234Ssimon$code.=<<___; 99238405Sjkim ror \$`$Sigma1[2]-$Sigma1[1]`,$a0 100183234Ssimon mov $f,$a2 101238405Sjkim mov $T1,`$SZ*($i&0xf)`(%rsp) 102183234Ssimon 103238405Sjkim ror \$`$Sigma0[2]-$Sigma0[1]`,$a1 104238405Sjkim xor $e,$a0 105183234Ssimon xor $g,$a2 # f^g 106183234Ssimon 107238405Sjkim ror \$`$Sigma1[1]-$Sigma1[0]`,$a0 108238405Sjkim add $h,$T1 # T1+=h 109238405Sjkim xor $a,$a1 110238405Sjkim 111238405Sjkim add ($Tbl,$round,$SZ),$T1 # T1+=K[round] 112183234Ssimon and $e,$a2 # (f^g)&e 113238405Sjkim mov $b,$h 114183234Ssimon 115238405Sjkim ror \$`$Sigma0[1]-$Sigma0[0]`,$a1 116238405Sjkim xor $e,$a0 117183234Ssimon xor $g,$a2 # Ch(e,f,g)=((f^g)&e)^g 118183234Ssimon 119238405Sjkim xor $c,$h # b^c 120238405Sjkim xor $a,$a1 121183234Ssimon add $a2,$T1 # T1+=Ch(e,f,g) 122238405Sjkim mov $b,$a2 123183234Ssimon 124238405Sjkim ror \$$Sigma1[0],$a0 # Sigma1(e) 125238405Sjkim and $a,$h # h=(b^c)&a 126238405Sjkim and $c,$a2 # b&c 127183234Ssimon 128238405Sjkim ror \$$Sigma0[0],$a1 # Sigma0(a) 129238405Sjkim add $a0,$T1 # T1+=Sigma1(e) 130238405Sjkim add $a2,$h # h+=b&c (completes +=Maj(a,b,c) 131183234Ssimon 132183234Ssimon add $T1,$d # d+=T1 133183234Ssimon add $T1,$h # h+=T1 134183234Ssimon lea 1($round),$round # round++ 135238405Sjkim add $a1,$h # h+=Sigma0(a) 136183234Ssimon 137183234Ssimon___ 138183234Ssimon} 139183234Ssimon 140183234Ssimonsub ROUND_16_XX() 141183234Ssimon{ my ($i,$a,$b,$c,$d,$e,$f,$g,$h) = @_; 142183234Ssimon 143183234Ssimon$code.=<<___; 144183234Ssimon mov `$SZ*(($i+1)&0xf)`(%rsp),$a0 145238405Sjkim mov `$SZ*(($i+14)&0xf)`(%rsp),$a1 146238405Sjkim mov $a0,$T1 147238405Sjkim mov $a1,$a2 148183234Ssimon 149238405Sjkim ror \$`$sigma0[1]-$sigma0[0]`,$T1 150238405Sjkim xor $a0,$T1 151183234Ssimon shr \$$sigma0[2],$a0 152183234Ssimon 153238405Sjkim ror \$$sigma0[0],$T1 154238405Sjkim xor $T1,$a0 # sigma0(X[(i+1)&0xf]) 155238405Sjkim mov `$SZ*(($i+9)&0xf)`(%rsp),$T1 156183234Ssimon 157238405Sjkim ror \$`$sigma1[1]-$sigma1[0]`,$a2 158238405Sjkim xor $a1,$a2 159238405Sjkim shr \$$sigma1[2],$a1 160183234Ssimon 161238405Sjkim ror \$$sigma1[0],$a2 162183234Ssimon add $a0,$T1 163238405Sjkim xor $a2,$a1 # sigma1(X[(i+14)&0xf]) 164183234Ssimon 165183234Ssimon add `$SZ*($i&0xf)`(%rsp),$T1 166238405Sjkim mov $e,$a0 167238405Sjkim add $a1,$T1 168238405Sjkim mov $a,$a1 169183234Ssimon___ 170183234Ssimon &ROUND_00_15(@_); 171183234Ssimon} 172183234Ssimon 173183234Ssimon$code=<<___; 174183234Ssimon.text 175183234Ssimon 176183234Ssimon.globl $func 177183234Ssimon.type $func,\@function,4 178183234Ssimon.align 16 179183234Ssimon$func: 180183234Ssimon push %rbx 181183234Ssimon push %rbp 182183234Ssimon push %r12 183183234Ssimon push %r13 184183234Ssimon push %r14 185183234Ssimon push %r15 186238405Sjkim mov %rsp,%r11 # copy %rsp 187183234Ssimon shl \$4,%rdx # num*16 188183234Ssimon sub \$$framesz,%rsp 189183234Ssimon lea ($inp,%rdx,$SZ),%rdx # inp+num*16*$SZ 190183234Ssimon and \$-64,%rsp # align stack frame 191183234Ssimon mov $ctx,$_ctx # save ctx, 1st arg 192183234Ssimon mov $inp,$_inp # save inp, 2nd arh 193183234Ssimon mov %rdx,$_end # save end pointer, "3rd" arg 194238405Sjkim mov %r11,$_rsp # save copy of %rsp 195238405Sjkim.Lprologue: 196183234Ssimon 197238405Sjkim lea $TABLE(%rip),$Tbl 198183234Ssimon 199183234Ssimon mov $SZ*0($ctx),$A 200183234Ssimon mov $SZ*1($ctx),$B 201183234Ssimon mov $SZ*2($ctx),$C 202183234Ssimon mov $SZ*3($ctx),$D 203183234Ssimon mov $SZ*4($ctx),$E 204183234Ssimon mov $SZ*5($ctx),$F 205183234Ssimon mov $SZ*6($ctx),$G 206183234Ssimon mov $SZ*7($ctx),$H 207183234Ssimon jmp .Lloop 208183234Ssimon 209183234Ssimon.align 16 210183234Ssimon.Lloop: 211183234Ssimon xor $round,$round 212183234Ssimon___ 213183234Ssimon for($i=0;$i<16;$i++) { 214183234Ssimon $code.=" mov $SZ*$i($inp),$T1\n"; 215238405Sjkim $code.=" mov @ROT[4],$a0\n"; 216238405Sjkim $code.=" mov @ROT[0],$a1\n"; 217183234Ssimon $code.=" bswap $T1\n"; 218183234Ssimon &ROUND_00_15($i,@ROT); 219183234Ssimon unshift(@ROT,pop(@ROT)); 220183234Ssimon } 221183234Ssimon$code.=<<___; 222183234Ssimon jmp .Lrounds_16_xx 223183234Ssimon.align 16 224183234Ssimon.Lrounds_16_xx: 225183234Ssimon___ 226183234Ssimon for(;$i<32;$i++) { 227183234Ssimon &ROUND_16_XX($i,@ROT); 228183234Ssimon unshift(@ROT,pop(@ROT)); 229183234Ssimon } 230183234Ssimon 231183234Ssimon$code.=<<___; 232183234Ssimon cmp \$$rounds,$round 233183234Ssimon jb .Lrounds_16_xx 234183234Ssimon 235183234Ssimon mov $_ctx,$ctx 236183234Ssimon lea 16*$SZ($inp),$inp 237183234Ssimon 238183234Ssimon add $SZ*0($ctx),$A 239183234Ssimon add $SZ*1($ctx),$B 240183234Ssimon add $SZ*2($ctx),$C 241183234Ssimon add $SZ*3($ctx),$D 242183234Ssimon add $SZ*4($ctx),$E 243183234Ssimon add $SZ*5($ctx),$F 244183234Ssimon add $SZ*6($ctx),$G 245183234Ssimon add $SZ*7($ctx),$H 246183234Ssimon 247183234Ssimon cmp $_end,$inp 248183234Ssimon 249183234Ssimon mov $A,$SZ*0($ctx) 250183234Ssimon mov $B,$SZ*1($ctx) 251183234Ssimon mov $C,$SZ*2($ctx) 252183234Ssimon mov $D,$SZ*3($ctx) 253183234Ssimon mov $E,$SZ*4($ctx) 254183234Ssimon mov $F,$SZ*5($ctx) 255183234Ssimon mov $G,$SZ*6($ctx) 256183234Ssimon mov $H,$SZ*7($ctx) 257183234Ssimon jb .Lloop 258183234Ssimon 259238405Sjkim mov $_rsp,%rsi 260238405Sjkim mov (%rsi),%r15 261238405Sjkim mov 8(%rsi),%r14 262238405Sjkim mov 16(%rsi),%r13 263238405Sjkim mov 24(%rsi),%r12 264238405Sjkim mov 32(%rsi),%rbp 265238405Sjkim mov 40(%rsi),%rbx 266238405Sjkim lea 48(%rsi),%rsp 267238405Sjkim.Lepilogue: 268183234Ssimon ret 269183234Ssimon.size $func,.-$func 270183234Ssimon___ 271183234Ssimon 272183234Ssimonif ($SZ==4) { 273183234Ssimon$code.=<<___; 274183234Ssimon.align 64 275183234Ssimon.type $TABLE,\@object 276183234Ssimon$TABLE: 277183234Ssimon .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 278183234Ssimon .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 279183234Ssimon .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 280183234Ssimon .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 281183234Ssimon .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc 282183234Ssimon .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da 283183234Ssimon .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 284183234Ssimon .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 285183234Ssimon .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 286183234Ssimon .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 287183234Ssimon .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 288183234Ssimon .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 289183234Ssimon .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 290183234Ssimon .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 291183234Ssimon .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 292183234Ssimon .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 293183234Ssimon___ 294183234Ssimon} else { 295183234Ssimon$code.=<<___; 296183234Ssimon.align 64 297183234Ssimon.type $TABLE,\@object 298183234Ssimon$TABLE: 299183234Ssimon .quad 0x428a2f98d728ae22,0x7137449123ef65cd 300183234Ssimon .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc 301183234Ssimon .quad 0x3956c25bf348b538,0x59f111f1b605d019 302183234Ssimon .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 303183234Ssimon .quad 0xd807aa98a3030242,0x12835b0145706fbe 304183234Ssimon .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 305183234Ssimon .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 306183234Ssimon .quad 0x9bdc06a725c71235,0xc19bf174cf692694 307183234Ssimon .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 308183234Ssimon .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 309183234Ssimon .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 310183234Ssimon .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 311183234Ssimon .quad 0x983e5152ee66dfab,0xa831c66d2db43210 312183234Ssimon .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 313183234Ssimon .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 314183234Ssimon .quad 0x06ca6351e003826f,0x142929670a0e6e70 315183234Ssimon .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 316183234Ssimon .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df 317183234Ssimon .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 318183234Ssimon .quad 0x81c2c92e47edaee6,0x92722c851482353b 319183234Ssimon .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 320183234Ssimon .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 321183234Ssimon .quad 0xd192e819d6ef5218,0xd69906245565a910 322183234Ssimon .quad 0xf40e35855771202a,0x106aa07032bbd1b8 323183234Ssimon .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 324183234Ssimon .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 325183234Ssimon .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb 326183234Ssimon .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 327183234Ssimon .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 328183234Ssimon .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec 329183234Ssimon .quad 0x90befffa23631e28,0xa4506cebde82bde9 330183234Ssimon .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b 331183234Ssimon .quad 0xca273eceea26619c,0xd186b8c721c0c207 332183234Ssimon .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 333183234Ssimon .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 334183234Ssimon .quad 0x113f9804bef90dae,0x1b710b35131c471b 335183234Ssimon .quad 0x28db77f523047d84,0x32caab7b40c72493 336183234Ssimon .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c 337183234Ssimon .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a 338183234Ssimon .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 339183234Ssimon___ 340183234Ssimon} 341183234Ssimon 342238405Sjkim# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame, 343238405Sjkim# CONTEXT *context,DISPATCHER_CONTEXT *disp) 344238405Sjkimif ($win64) { 345238405Sjkim$rec="%rcx"; 346238405Sjkim$frame="%rdx"; 347238405Sjkim$context="%r8"; 348238405Sjkim$disp="%r9"; 349238405Sjkim 350238405Sjkim$code.=<<___; 351238405Sjkim.extern __imp_RtlVirtualUnwind 352238405Sjkim.type se_handler,\@abi-omnipotent 353238405Sjkim.align 16 354238405Sjkimse_handler: 355238405Sjkim push %rsi 356238405Sjkim push %rdi 357238405Sjkim push %rbx 358238405Sjkim push %rbp 359238405Sjkim push %r12 360238405Sjkim push %r13 361238405Sjkim push %r14 362238405Sjkim push %r15 363238405Sjkim pushfq 364238405Sjkim sub \$64,%rsp 365238405Sjkim 366238405Sjkim mov 120($context),%rax # pull context->Rax 367238405Sjkim mov 248($context),%rbx # pull context->Rip 368238405Sjkim 369238405Sjkim lea .Lprologue(%rip),%r10 370238405Sjkim cmp %r10,%rbx # context->Rip<.Lprologue 371238405Sjkim jb .Lin_prologue 372238405Sjkim 373238405Sjkim mov 152($context),%rax # pull context->Rsp 374238405Sjkim 375238405Sjkim lea .Lepilogue(%rip),%r10 376238405Sjkim cmp %r10,%rbx # context->Rip>=.Lepilogue 377238405Sjkim jae .Lin_prologue 378238405Sjkim 379238405Sjkim mov 16*$SZ+3*8(%rax),%rax # pull $_rsp 380238405Sjkim lea 48(%rax),%rax 381238405Sjkim 382238405Sjkim mov -8(%rax),%rbx 383238405Sjkim mov -16(%rax),%rbp 384238405Sjkim mov -24(%rax),%r12 385238405Sjkim mov -32(%rax),%r13 386238405Sjkim mov -40(%rax),%r14 387238405Sjkim mov -48(%rax),%r15 388238405Sjkim mov %rbx,144($context) # restore context->Rbx 389238405Sjkim mov %rbp,160($context) # restore context->Rbp 390238405Sjkim mov %r12,216($context) # restore context->R12 391238405Sjkim mov %r13,224($context) # restore context->R13 392238405Sjkim mov %r14,232($context) # restore context->R14 393238405Sjkim mov %r15,240($context) # restore context->R15 394238405Sjkim 395238405Sjkim.Lin_prologue: 396238405Sjkim mov 8(%rax),%rdi 397238405Sjkim mov 16(%rax),%rsi 398238405Sjkim mov %rax,152($context) # restore context->Rsp 399238405Sjkim mov %rsi,168($context) # restore context->Rsi 400238405Sjkim mov %rdi,176($context) # restore context->Rdi 401238405Sjkim 402238405Sjkim mov 40($disp),%rdi # disp->ContextRecord 403238405Sjkim mov $context,%rsi # context 404238405Sjkim mov \$154,%ecx # sizeof(CONTEXT) 405238405Sjkim .long 0xa548f3fc # cld; rep movsq 406238405Sjkim 407238405Sjkim mov $disp,%rsi 408238405Sjkim xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER 409238405Sjkim mov 8(%rsi),%rdx # arg2, disp->ImageBase 410238405Sjkim mov 0(%rsi),%r8 # arg3, disp->ControlPc 411238405Sjkim mov 16(%rsi),%r9 # arg4, disp->FunctionEntry 412238405Sjkim mov 40(%rsi),%r10 # disp->ContextRecord 413238405Sjkim lea 56(%rsi),%r11 # &disp->HandlerData 414238405Sjkim lea 24(%rsi),%r12 # &disp->EstablisherFrame 415238405Sjkim mov %r10,32(%rsp) # arg5 416238405Sjkim mov %r11,40(%rsp) # arg6 417238405Sjkim mov %r12,48(%rsp) # arg7 418238405Sjkim mov %rcx,56(%rsp) # arg8, (NULL) 419238405Sjkim call *__imp_RtlVirtualUnwind(%rip) 420238405Sjkim 421238405Sjkim mov \$1,%eax # ExceptionContinueSearch 422238405Sjkim add \$64,%rsp 423238405Sjkim popfq 424238405Sjkim pop %r15 425238405Sjkim pop %r14 426238405Sjkim pop %r13 427238405Sjkim pop %r12 428238405Sjkim pop %rbp 429238405Sjkim pop %rbx 430238405Sjkim pop %rdi 431238405Sjkim pop %rsi 432238405Sjkim ret 433238405Sjkim.size se_handler,.-se_handler 434238405Sjkim 435238405Sjkim.section .pdata 436238405Sjkim.align 4 437238405Sjkim .rva .LSEH_begin_$func 438238405Sjkim .rva .LSEH_end_$func 439238405Sjkim .rva .LSEH_info_$func 440238405Sjkim 441238405Sjkim.section .xdata 442238405Sjkim.align 8 443238405Sjkim.LSEH_info_$func: 444238405Sjkim .byte 9,0,0,0 445238405Sjkim .rva se_handler 446238405Sjkim___ 447238405Sjkim} 448238405Sjkim 449183234Ssimon$code =~ s/\`([^\`]*)\`/eval $1/gem; 450183234Ssimonprint $code; 451183234Ssimonclose STDOUT; 452