1#! /usr/bin/env perl 2# Copyright 2014-2020 The OpenSSL Project Authors. All Rights Reserved. 3# 4# Licensed under the OpenSSL license (the "License"). You may not use 5# this file except in compliance with the License. You can obtain a copy 6# in the file LICENSE in the source distribution or at 7# https://www.openssl.org/source/license.html 8 9# ==================================================================== 10# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL 11# project. The module is, however, dual licensed under OpenSSL and 12# CRYPTOGAMS licenses depending on where you obtain it. For further 13# details see http://www.openssl.org/~appro/cryptogams/. 14# 15# Permission to use under GPLv2 terms is granted. 16# ==================================================================== 17# 18# SHA256/512 for ARMv8. 19# 20# Performance in cycles per processed byte and improvement coefficient 21# over code generated with "default" compiler: 22# 23# SHA256-hw SHA256(*) SHA512 24# Apple A7 1.97 10.5 (+33%) 6.73 (-1%(**)) 25# Cortex-A53 2.38 15.5 (+115%) 10.0 (+150%(***)) 26# Cortex-A57 2.31 11.6 (+86%) 7.51 (+260%(***)) 27# Denver 2.01 10.5 (+26%) 6.70 (+8%) 28# X-Gene 20.0 (+100%) 12.8 (+300%(***)) 29# Mongoose 2.36 13.0 (+50%) 8.36 (+33%) 30# Kryo 1.92 17.4 (+30%) 11.2 (+8%) 31# 32# (*) Software SHA256 results are of lesser relevance, presented 33# mostly for informational purposes. 34# (**) The result is a trade-off: it's possible to improve it by 35# 10% (or by 1 cycle per round), but at the cost of 20% loss 36# on Cortex-A53 (or by 4 cycles per round). 37# (***) Super-impressive coefficients over gcc-generated code are 38# indication of some compiler "pathology", most notably code 39# generated with -mgeneral-regs-only is significantly faster 40# and the gap is only 40-90%. 41 42$output=pop; 43$flavour=pop; 44 45if ($flavour && $flavour ne "void") { 46 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1; 47 ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or 48 ( $xlate="${dir}../../../perlasm/arm-xlate.pl" and -f $xlate) or 49 die "can't locate arm-xlate.pl"; 50 51 open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""; 52 *STDOUT=*OUT; 53} else { 54 open OUT,">$output"; 55 *STDOUT=*OUT; 56} 57 58if ($output =~ /512/) { 59 $BITS=512; 60 $SZ=8; 61 @Sigma0=(28,34,39); 62 @Sigma1=(14,18,41); 63 @sigma0=(1, 8, 7); 64 @sigma1=(19,61, 6); 65 $rounds=80; 66 $reg_t="x"; 67} else { 68 $BITS=256; 69 $SZ=4; 70 @Sigma0=( 2,13,22); 71 @Sigma1=( 6,11,25); 72 @sigma0=( 7,18, 3); 73 @sigma1=(17,19,10); 74 $rounds=64; 75 $reg_t="w"; 76} 77 78$func="sha${BITS}_block_data_order"; 79 80($ctx,$inp,$num,$Ktbl)=map("x$_",(0..2,30)); 81 82@X=map("$reg_t$_",(3..15,0..2)); 83@V=($A,$B,$C,$D,$E,$F,$G,$H)=map("$reg_t$_",(20..27)); 84($t0,$t1,$t2,$t3)=map("$reg_t$_",(16,17,19,28)); 85 86sub BODY_00_xx { 87my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_; 88my $j=($i+1)&15; 89my ($T0,$T1,$T2)=(@X[($i-8)&15],@X[($i-9)&15],@X[($i-10)&15]); 90 $T0=@X[$i+3] if ($i<11); 91 92$code.=<<___ if ($i<16); 93#ifndef __AARCH64EB__ 94 rev @X[$i],@X[$i] // $i 95#endif 96___ 97$code.=<<___ if ($i<13 && ($i&1)); 98 ldp @X[$i+1],@X[$i+2],[$inp],#2*$SZ 99___ 100$code.=<<___ if ($i==13); 101 ldp @X[14],@X[15],[$inp] 102___ 103$code.=<<___ if ($i>=14); 104 ldr @X[($i-11)&15],[sp,#`$SZ*(($i-11)%4)`] 105___ 106$code.=<<___ if ($i>0 && $i<16); 107 add $a,$a,$t1 // h+=Sigma0(a) 108___ 109$code.=<<___ if ($i>=11); 110 str @X[($i-8)&15],[sp,#`$SZ*(($i-8)%4)`] 111___ 112# While ARMv8 specifies merged rotate-n-logical operation such as 113# 'eor x,y,z,ror#n', it was found to negatively affect performance 114# on Apple A7. The reason seems to be that it requires even 'y' to 115# be available earlier. This means that such merged instruction is 116# not necessarily best choice on critical path... On the other hand 117# Cortex-A5x handles merged instructions much better than disjoint 118# rotate and logical... See (**) footnote above. 119$code.=<<___ if ($i<15); 120 ror $t0,$e,#$Sigma1[0] 121 add $h,$h,$t2 // h+=K[i] 122 eor $T0,$e,$e,ror#`$Sigma1[2]-$Sigma1[1]` 123 and $t1,$f,$e 124 bic $t2,$g,$e 125 add $h,$h,@X[$i&15] // h+=X[i] 126 orr $t1,$t1,$t2 // Ch(e,f,g) 127 eor $t2,$a,$b // a^b, b^c in next round 128 eor $t0,$t0,$T0,ror#$Sigma1[1] // Sigma1(e) 129 ror $T0,$a,#$Sigma0[0] 130 add $h,$h,$t1 // h+=Ch(e,f,g) 131 eor $t1,$a,$a,ror#`$Sigma0[2]-$Sigma0[1]` 132 add $h,$h,$t0 // h+=Sigma1(e) 133 and $t3,$t3,$t2 // (b^c)&=(a^b) 134 add $d,$d,$h // d+=h 135 eor $t3,$t3,$b // Maj(a,b,c) 136 eor $t1,$T0,$t1,ror#$Sigma0[1] // Sigma0(a) 137 add $h,$h,$t3 // h+=Maj(a,b,c) 138 ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round 139 //add $h,$h,$t1 // h+=Sigma0(a) 140___ 141$code.=<<___ if ($i>=15); 142 ror $t0,$e,#$Sigma1[0] 143 add $h,$h,$t2 // h+=K[i] 144 ror $T1,@X[($j+1)&15],#$sigma0[0] 145 and $t1,$f,$e 146 ror $T2,@X[($j+14)&15],#$sigma1[0] 147 bic $t2,$g,$e 148 ror $T0,$a,#$Sigma0[0] 149 add $h,$h,@X[$i&15] // h+=X[i] 150 eor $t0,$t0,$e,ror#$Sigma1[1] 151 eor $T1,$T1,@X[($j+1)&15],ror#$sigma0[1] 152 orr $t1,$t1,$t2 // Ch(e,f,g) 153 eor $t2,$a,$b // a^b, b^c in next round 154 eor $t0,$t0,$e,ror#$Sigma1[2] // Sigma1(e) 155 eor $T0,$T0,$a,ror#$Sigma0[1] 156 add $h,$h,$t1 // h+=Ch(e,f,g) 157 and $t3,$t3,$t2 // (b^c)&=(a^b) 158 eor $T2,$T2,@X[($j+14)&15],ror#$sigma1[1] 159 eor $T1,$T1,@X[($j+1)&15],lsr#$sigma0[2] // sigma0(X[i+1]) 160 add $h,$h,$t0 // h+=Sigma1(e) 161 eor $t3,$t3,$b // Maj(a,b,c) 162 eor $t1,$T0,$a,ror#$Sigma0[2] // Sigma0(a) 163 eor $T2,$T2,@X[($j+14)&15],lsr#$sigma1[2] // sigma1(X[i+14]) 164 add @X[$j],@X[$j],@X[($j+9)&15] 165 add $d,$d,$h // d+=h 166 add $h,$h,$t3 // h+=Maj(a,b,c) 167 ldr $t3,[$Ktbl],#$SZ // *K++, $t2 in next round 168 add @X[$j],@X[$j],$T1 169 add $h,$h,$t1 // h+=Sigma0(a) 170 add @X[$j],@X[$j],$T2 171___ 172 ($t2,$t3)=($t3,$t2); 173} 174 175$code.=<<___; 176#ifndef __KERNEL__ 177# include <openssl/arm_arch.h> 178#endif 179 180.text 181 182.extern OPENSSL_armcap_P 183.hidden OPENSSL_armcap_P 184.globl $func 185.type $func,%function 186.align 6 187$func: 188 AARCH64_VALID_CALL_TARGET 189#ifndef __KERNEL__ 190#if __has_feature(hwaddress_sanitizer) && __clang_major__ >= 10 191 adrp x16,:pg_hi21_nc:OPENSSL_armcap_P 192#else 193 adrp x16,:pg_hi21:OPENSSL_armcap_P 194#endif 195 ldr w16,[x16,:lo12:OPENSSL_armcap_P] 196___ 197$code.=<<___ if ($SZ==4); 198 tst w16,#ARMV8_SHA256 199 b.ne .Lv8_entry 200___ 201$code.=<<___ if ($SZ==8); 202 tst w16,#ARMV8_SHA512 203 b.ne .Lv8_entry 204___ 205$code.=<<___; 206#endif 207 AARCH64_SIGN_LINK_REGISTER 208 stp x29,x30,[sp,#-128]! 209 add x29,sp,#0 210 211 stp x19,x20,[sp,#16] 212 stp x21,x22,[sp,#32] 213 stp x23,x24,[sp,#48] 214 stp x25,x26,[sp,#64] 215 stp x27,x28,[sp,#80] 216 sub sp,sp,#4*$SZ 217 218 ldp $A,$B,[$ctx] // load context 219 ldp $C,$D,[$ctx,#2*$SZ] 220 ldp $E,$F,[$ctx,#4*$SZ] 221 add $num,$inp,$num,lsl#`log(16*$SZ)/log(2)` // end of input 222 ldp $G,$H,[$ctx,#6*$SZ] 223 adrp $Ktbl,:pg_hi21:.LK$BITS 224 add $Ktbl,$Ktbl,:lo12:.LK$BITS 225 stp $ctx,$num,[x29,#96] 226 227.Loop: 228 ldp @X[0],@X[1],[$inp],#2*$SZ 229 ldr $t2,[$Ktbl],#$SZ // *K++ 230 eor $t3,$B,$C // magic seed 231 str $inp,[x29,#112] 232___ 233for ($i=0;$i<16;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } 234$code.=".Loop_16_xx:\n"; 235for (;$i<32;$i++) { &BODY_00_xx($i,@V); unshift(@V,pop(@V)); } 236$code.=<<___; 237 cbnz $t2,.Loop_16_xx 238 239 ldp $ctx,$num,[x29,#96] 240 ldr $inp,[x29,#112] 241 sub $Ktbl,$Ktbl,#`$SZ*($rounds+1)` // rewind 242 243 ldp @X[0],@X[1],[$ctx] 244 ldp @X[2],@X[3],[$ctx,#2*$SZ] 245 add $inp,$inp,#14*$SZ // advance input pointer 246 ldp @X[4],@X[5],[$ctx,#4*$SZ] 247 add $A,$A,@X[0] 248 ldp @X[6],@X[7],[$ctx,#6*$SZ] 249 add $B,$B,@X[1] 250 add $C,$C,@X[2] 251 add $D,$D,@X[3] 252 stp $A,$B,[$ctx] 253 add $E,$E,@X[4] 254 add $F,$F,@X[5] 255 stp $C,$D,[$ctx,#2*$SZ] 256 add $G,$G,@X[6] 257 add $H,$H,@X[7] 258 cmp $inp,$num 259 stp $E,$F,[$ctx,#4*$SZ] 260 stp $G,$H,[$ctx,#6*$SZ] 261 b.ne .Loop 262 263 ldp x19,x20,[x29,#16] 264 add sp,sp,#4*$SZ 265 ldp x21,x22,[x29,#32] 266 ldp x23,x24,[x29,#48] 267 ldp x25,x26,[x29,#64] 268 ldp x27,x28,[x29,#80] 269 ldp x29,x30,[sp],#128 270 AARCH64_VALIDATE_LINK_REGISTER 271 ret 272.size $func,.-$func 273 274.section .rodata 275.align 6 276.type .LK$BITS,%object 277.LK$BITS: 278___ 279$code.=<<___ if ($SZ==8); 280 .quad 0x428a2f98d728ae22,0x7137449123ef65cd 281 .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc 282 .quad 0x3956c25bf348b538,0x59f111f1b605d019 283 .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118 284 .quad 0xd807aa98a3030242,0x12835b0145706fbe 285 .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2 286 .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1 287 .quad 0x9bdc06a725c71235,0xc19bf174cf692694 288 .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3 289 .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65 290 .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483 291 .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5 292 .quad 0x983e5152ee66dfab,0xa831c66d2db43210 293 .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4 294 .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725 295 .quad 0x06ca6351e003826f,0x142929670a0e6e70 296 .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926 297 .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df 298 .quad 0x650a73548baf63de,0x766a0abb3c77b2a8 299 .quad 0x81c2c92e47edaee6,0x92722c851482353b 300 .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001 301 .quad 0xc24b8b70d0f89791,0xc76c51a30654be30 302 .quad 0xd192e819d6ef5218,0xd69906245565a910 303 .quad 0xf40e35855771202a,0x106aa07032bbd1b8 304 .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53 305 .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8 306 .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb 307 .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3 308 .quad 0x748f82ee5defb2fc,0x78a5636f43172f60 309 .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec 310 .quad 0x90befffa23631e28,0xa4506cebde82bde9 311 .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b 312 .quad 0xca273eceea26619c,0xd186b8c721c0c207 313 .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178 314 .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6 315 .quad 0x113f9804bef90dae,0x1b710b35131c471b 316 .quad 0x28db77f523047d84,0x32caab7b40c72493 317 .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c 318 .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a 319 .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817 320 .quad 0 // terminator 321___ 322$code.=<<___ if ($SZ==4); 323 .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 324 .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 325 .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 326 .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 327 .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc 328 .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da 329 .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 330 .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 331 .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 332 .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 333 .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 334 .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 335 .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 336 .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 337 .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 338 .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 339 .long 0 //terminator 340___ 341$code.=<<___; 342.size .LK$BITS,.-.LK$BITS 343.asciz "SHA$BITS block transform for ARMv8, CRYPTOGAMS by <appro\@openssl.org>" 344.align 2 345___ 346 347if ($SZ==4) { 348my $Ktbl="x3"; 349 350my ($ABCD,$EFGH,$abcd)=map("v$_.16b",(0..2)); 351my @MSG=map("v$_.16b",(4..7)); 352my ($W0,$W1)=("v16.4s","v17.4s"); 353my ($ABCD_SAVE,$EFGH_SAVE)=("v18.16b","v19.16b"); 354 355$code.=<<___; 356.text 357#ifndef __KERNEL__ 358.type sha256_block_armv8,%function 359.align 6 360sha256_block_armv8: 361.Lv8_entry: 362 // Armv8.3-A PAuth: even though x30 is pushed to stack it is not popped later. 363 stp x29,x30,[sp,#-16]! 364 add x29,sp,#0 365 366 ld1.32 {$ABCD,$EFGH},[$ctx] 367 adrp $Ktbl,:pg_hi21:.LK256 368 add $Ktbl,$Ktbl,:lo12:.LK256 369 370.Loop_hw: 371 ld1 {@MSG[0]-@MSG[3]},[$inp],#64 372 sub $num,$num,#1 373 ld1.32 {$W0},[$Ktbl],#16 374 rev32 @MSG[0],@MSG[0] 375 rev32 @MSG[1],@MSG[1] 376 rev32 @MSG[2],@MSG[2] 377 rev32 @MSG[3],@MSG[3] 378 orr $ABCD_SAVE,$ABCD,$ABCD // offload 379 orr $EFGH_SAVE,$EFGH,$EFGH 380___ 381for($i=0;$i<12;$i++) { 382$code.=<<___; 383 ld1.32 {$W1},[$Ktbl],#16 384 add.i32 $W0,$W0,@MSG[0] 385 sha256su0 @MSG[0],@MSG[1] 386 orr $abcd,$ABCD,$ABCD 387 sha256h $ABCD,$EFGH,$W0 388 sha256h2 $EFGH,$abcd,$W0 389 sha256su1 @MSG[0],@MSG[2],@MSG[3] 390___ 391 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); 392} 393$code.=<<___; 394 ld1.32 {$W1},[$Ktbl],#16 395 add.i32 $W0,$W0,@MSG[0] 396 orr $abcd,$ABCD,$ABCD 397 sha256h $ABCD,$EFGH,$W0 398 sha256h2 $EFGH,$abcd,$W0 399 400 ld1.32 {$W0},[$Ktbl],#16 401 add.i32 $W1,$W1,@MSG[1] 402 orr $abcd,$ABCD,$ABCD 403 sha256h $ABCD,$EFGH,$W1 404 sha256h2 $EFGH,$abcd,$W1 405 406 ld1.32 {$W1},[$Ktbl] 407 add.i32 $W0,$W0,@MSG[2] 408 sub $Ktbl,$Ktbl,#$rounds*$SZ-16 // rewind 409 orr $abcd,$ABCD,$ABCD 410 sha256h $ABCD,$EFGH,$W0 411 sha256h2 $EFGH,$abcd,$W0 412 413 add.i32 $W1,$W1,@MSG[3] 414 orr $abcd,$ABCD,$ABCD 415 sha256h $ABCD,$EFGH,$W1 416 sha256h2 $EFGH,$abcd,$W1 417 418 add.i32 $ABCD,$ABCD,$ABCD_SAVE 419 add.i32 $EFGH,$EFGH,$EFGH_SAVE 420 421 cbnz $num,.Loop_hw 422 423 st1.32 {$ABCD,$EFGH},[$ctx] 424 425 ldr x29,[sp],#16 426 ret 427.size sha256_block_armv8,.-sha256_block_armv8 428#endif 429___ 430} 431 432if ($SZ==8) { 433my $Ktbl="x3"; 434 435my @H = map("v$_.16b",(0..4)); 436my ($fg,$de,$m9_10)=map("v$_.16b",(5..7)); 437my @MSG=map("v$_.16b",(16..23)); 438my ($W0,$W1)=("v24.2d","v25.2d"); 439my ($AB,$CD,$EF,$GH)=map("v$_.16b",(26..29)); 440 441$code.=<<___; 442.text 443#ifndef __KERNEL__ 444.type sha512_block_armv8,%function 445.align 6 446sha512_block_armv8: 447.Lv8_entry: 448 stp x29,x30,[sp,#-16]! 449 add x29,sp,#0 450 451 ld1 {@MSG[0]-@MSG[3]},[$inp],#64 // load input 452 ld1 {@MSG[4]-@MSG[7]},[$inp],#64 453 454 ld1.64 {@H[0]-@H[3]},[$ctx] // load context 455 adrp $Ktbl,:pg_hi21:.LK512 456 add $Ktbl,$Ktbl,:lo12:.LK512 457 458 rev64 @MSG[0],@MSG[0] 459 rev64 @MSG[1],@MSG[1] 460 rev64 @MSG[2],@MSG[2] 461 rev64 @MSG[3],@MSG[3] 462 rev64 @MSG[4],@MSG[4] 463 rev64 @MSG[5],@MSG[5] 464 rev64 @MSG[6],@MSG[6] 465 rev64 @MSG[7],@MSG[7] 466 b .Loop_hw 467 468.align 4 469.Loop_hw: 470 ld1.64 {$W0},[$Ktbl],#16 471 subs $num,$num,#1 472 sub x4,$inp,#128 473 orr $AB,@H[0],@H[0] // offload 474 orr $CD,@H[1],@H[1] 475 orr $EF,@H[2],@H[2] 476 orr $GH,@H[3],@H[3] 477 csel $inp,$inp,x4,ne // conditional rewind 478___ 479for($i=0;$i<32;$i++) { 480$code.=<<___; 481 add.i64 $W0,$W0,@MSG[0] 482 ld1.64 {$W1},[$Ktbl],#16 483 ext $W0,$W0,$W0,#8 484 ext $fg,@H[2],@H[3],#8 485 ext $de,@H[1],@H[2],#8 486 add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]" 487 sha512su0 @MSG[0],@MSG[1] 488 ext $m9_10,@MSG[4],@MSG[5],#8 489 sha512h @H[3],$fg,$de 490 sha512su1 @MSG[0],@MSG[7],$m9_10 491 add.i64 @H[4],@H[1],@H[3] // "D + T1" 492 sha512h2 @H[3],$H[1],@H[0] 493___ 494 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); 495 @H = (@H[3],@H[0],@H[4],@H[2],@H[1]); 496} 497for(;$i<40;$i++) { 498$code.=<<___ if ($i<39); 499 ld1.64 {$W1},[$Ktbl],#16 500___ 501$code.=<<___ if ($i==39); 502 sub $Ktbl,$Ktbl,#$rounds*$SZ // rewind 503___ 504$code.=<<___; 505 add.i64 $W0,$W0,@MSG[0] 506 ld1 {@MSG[0]},[$inp],#16 // load next input 507 ext $W0,$W0,$W0,#8 508 ext $fg,@H[2],@H[3],#8 509 ext $de,@H[1],@H[2],#8 510 add.i64 @H[3],@H[3],$W0 // "T1 + H + K512[i]" 511 sha512h @H[3],$fg,$de 512 rev64 @MSG[0],@MSG[0] 513 add.i64 @H[4],@H[1],@H[3] // "D + T1" 514 sha512h2 @H[3],$H[1],@H[0] 515___ 516 ($W0,$W1)=($W1,$W0); push(@MSG,shift(@MSG)); 517 @H = (@H[3],@H[0],@H[4],@H[2],@H[1]); 518} 519$code.=<<___; 520 add.i64 @H[0],@H[0],$AB // accumulate 521 add.i64 @H[1],@H[1],$CD 522 add.i64 @H[2],@H[2],$EF 523 add.i64 @H[3],@H[3],$GH 524 525 cbnz $num,.Loop_hw 526 527 st1.64 {@H[0]-@H[3]},[$ctx] // store context 528 529 ldr x29,[sp],#16 530 ret 531.size sha512_block_armv8,.-sha512_block_armv8 532#endif 533___ 534} 535 536{ my %opcode = ( 537 "sha256h" => 0x5e004000, "sha256h2" => 0x5e005000, 538 "sha256su0" => 0x5e282800, "sha256su1" => 0x5e006000 ); 539 540 sub unsha256 { 541 my ($mnemonic,$arg)=@_; 542 543 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o 544 && 545 sprintf ".inst\t0x%08x\t//%s %s", 546 $opcode{$mnemonic}|$1|($2<<5)|($3<<16), 547 $mnemonic,$arg; 548 } 549} 550 551{ my %opcode = ( 552 "sha512h" => 0xce608000, "sha512h2" => 0xce608400, 553 "sha512su0" => 0xcec08000, "sha512su1" => 0xce608800 ); 554 555 sub unsha512 { 556 my ($mnemonic,$arg)=@_; 557 558 $arg =~ m/[qv]([0-9]+)[^,]*,\s*[qv]([0-9]+)[^,]*(?:,\s*[qv]([0-9]+))?/o 559 && 560 sprintf ".inst\t0x%08x\t//%s %s", 561 $opcode{$mnemonic}|$1|($2<<5)|($3<<16), 562 $mnemonic,$arg; 563 } 564} 565 566open SELF,$0; 567while(<SELF>) { 568 next if (/^#!/); 569 last if (!s/^#/\/\// and !/^$/); 570 print; 571} 572close SELF; 573 574foreach(split("\n",$code)) { 575 576 s/\`([^\`]*)\`/eval($1)/ge; 577 578 s/\b(sha512\w+)\s+([qv].*)/unsha512($1,$2)/ge or 579 s/\b(sha256\w+)\s+([qv].*)/unsha256($1,$2)/ge; 580 581 s/\bq([0-9]+)\b/v$1.16b/g; # old->new registers 582 583 s/\.[ui]?8(\s)/$1/; 584 s/\.\w?64\b// and s/\.16b/\.2d/g or 585 s/\.\w?32\b// and s/\.16b/\.4s/g; 586 m/\bext\b/ and s/\.2d/\.16b/g or 587 m/(ld|st)1[^\[]+\[0\]/ and s/\.4s/\.s/g; 588 589 print $_,"\n"; 590} 591 592close STDOUT or die "error closing STDOUT: $!"; 593