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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 | #define __ARM_ARCH__ __LINUX_ARM_ARCH__ @ SPDX-License-Identifier: GPL-2.0 @ This code is taken from the OpenSSL project but the author (Andy Polyakov) @ has relicensed it under the GPLv2. Therefore this program is free software; @ you can redistribute it and/or modify it under the terms of the GNU General @ Public License version 2 as published by the Free Software Foundation. @ @ The original headers, including the original license headers, are @ included below for completeness. @ ==================================================================== @ Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL @ project. The module is, however, dual licensed under OpenSSL and @ CRYPTOGAMS licenses depending on where you obtain it. For further @ details see https://www.openssl.org/~appro/cryptogams/. @ ==================================================================== @ sha1_block procedure for ARMv4. @ @ January 2007. @ Size/performance trade-off @ ==================================================================== @ impl size in bytes comp cycles[*] measured performance @ ==================================================================== @ thumb 304 3212 4420 @ armv4-small 392/+29% 1958/+64% 2250/+96% @ armv4-compact 740/+89% 1552/+26% 1840/+22% @ armv4-large 1420/+92% 1307/+19% 1370/+34%[***] @ full unroll ~5100/+260% ~1260/+4% ~1300/+5% @ ==================================================================== @ thumb = same as 'small' but in Thumb instructions[**] and @ with recurring code in two private functions; @ small = detached Xload/update, loops are folded; @ compact = detached Xload/update, 5x unroll; @ large = interleaved Xload/update, 5x unroll; @ full unroll = interleaved Xload/update, full unroll, estimated[!]; @ @ [*] Manually counted instructions in "grand" loop body. Measured @ performance is affected by prologue and epilogue overhead, @ i-cache availability, branch penalties, etc. @ [**] While each Thumb instruction is twice smaller, they are not as @ diverse as ARM ones: e.g., there are only two arithmetic @ instructions with 3 arguments, no [fixed] rotate, addressing @ modes are limited. As result it takes more instructions to do @ the same job in Thumb, therefore the code is never twice as @ small and always slower. @ [***] which is also ~35% better than compiler generated code. Dual- @ issue Cortex A8 core was measured to process input block in @ ~990 cycles. @ August 2010. @ @ Rescheduling for dual-issue pipeline resulted in 13% improvement on @ Cortex A8 core and in absolute terms ~870 cycles per input block @ [or 13.6 cycles per byte]. @ February 2011. @ @ Profiler-assisted and platform-specific optimization resulted in 10% @ improvement on Cortex A8 core and 12.2 cycles per byte. #include <linux/linkage.h> .text .align 2 ENTRY(sha1_block_data_order) stmdb sp!,{r4-r12,lr} add r2,r1,r2,lsl#6 @ r2 to point at the end of r1 ldmia r0,{r3,r4,r5,r6,r7} .Lloop: ldr r8,.LK_00_19 mov r14,sp sub sp,sp,#15*4 mov r5,r5,ror#30 mov r6,r6,ror#30 mov r7,r7,ror#30 @ [6] .L_00_15: #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r7,r8,r7,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r5,r6 @ F_xx_xx orr r9,r9,r11,lsl#16 add r7,r7,r3,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r7,r8,r7,ror#2 @ E+=K_00_19 eor r10,r5,r6 @ F_xx_xx add r7,r7,r3,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r4,r10,ror#2 add r7,r7,r9 @ E+=X[i] eor r10,r10,r6,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r7,r7,r10 @ E+=F_00_19(B,C,D) #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r6,r8,r6,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r4,r5 @ F_xx_xx orr r9,r9,r11,lsl#16 add r6,r6,r7,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r6,r8,r6,ror#2 @ E+=K_00_19 eor r10,r4,r5 @ F_xx_xx add r6,r6,r7,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r3,r10,ror#2 add r6,r6,r9 @ E+=X[i] eor r10,r10,r5,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r6,r6,r10 @ E+=F_00_19(B,C,D) #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r5,r8,r5,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r3,r4 @ F_xx_xx orr r9,r9,r11,lsl#16 add r5,r5,r6,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r5,r8,r5,ror#2 @ E+=K_00_19 eor r10,r3,r4 @ F_xx_xx add r5,r5,r6,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r7,r10,ror#2 add r5,r5,r9 @ E+=X[i] eor r10,r10,r4,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r5,r5,r10 @ E+=F_00_19(B,C,D) #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r4,r8,r4,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r7,r3 @ F_xx_xx orr r9,r9,r11,lsl#16 add r4,r4,r5,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r4,r8,r4,ror#2 @ E+=K_00_19 eor r10,r7,r3 @ F_xx_xx add r4,r4,r5,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r6,r10,ror#2 add r4,r4,r9 @ E+=X[i] eor r10,r10,r3,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r4,r4,r10 @ E+=F_00_19(B,C,D) #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r3,r8,r3,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r6,r7 @ F_xx_xx orr r9,r9,r11,lsl#16 add r3,r3,r4,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r3,r8,r3,ror#2 @ E+=K_00_19 eor r10,r6,r7 @ F_xx_xx add r3,r3,r4,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r5,r10,ror#2 add r3,r3,r9 @ E+=X[i] eor r10,r10,r7,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r3,r3,r10 @ E+=F_00_19(B,C,D) cmp r14,sp bne .L_00_15 @ [((11+4)*5+2)*3] sub sp,sp,#25*4 #if __ARM_ARCH__<7 ldrb r10,[r1,#2] ldrb r9,[r1,#3] ldrb r11,[r1,#1] add r7,r8,r7,ror#2 @ E+=K_00_19 ldrb r12,[r1],#4 orr r9,r9,r10,lsl#8 eor r10,r5,r6 @ F_xx_xx orr r9,r9,r11,lsl#16 add r7,r7,r3,ror#27 @ E+=ROR(A,27) orr r9,r9,r12,lsl#24 #else ldr r9,[r1],#4 @ handles unaligned add r7,r8,r7,ror#2 @ E+=K_00_19 eor r10,r5,r6 @ F_xx_xx add r7,r7,r3,ror#27 @ E+=ROR(A,27) #ifdef __ARMEL__ rev r9,r9 @ byte swap #endif #endif and r10,r4,r10,ror#2 add r7,r7,r9 @ E+=X[i] eor r10,r10,r6,ror#2 @ F_00_19(B,C,D) str r9,[r14,#-4]! add r7,r7,r10 @ E+=F_00_19(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r6,r8,r6,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r4,r5 @ F_xx_xx mov r9,r9,ror#31 add r6,r6,r7,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r3,r10,ror#2 @ F_xx_xx @ F_xx_xx add r6,r6,r9 @ E+=X[i] eor r10,r10,r5,ror#2 @ F_00_19(B,C,D) add r6,r6,r10 @ E+=F_00_19(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r5,r8,r5,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r3,r4 @ F_xx_xx mov r9,r9,ror#31 add r5,r5,r6,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r7,r10,ror#2 @ F_xx_xx @ F_xx_xx add r5,r5,r9 @ E+=X[i] eor r10,r10,r4,ror#2 @ F_00_19(B,C,D) add r5,r5,r10 @ E+=F_00_19(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r4,r8,r4,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r7,r3 @ F_xx_xx mov r9,r9,ror#31 add r4,r4,r5,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r6,r10,ror#2 @ F_xx_xx @ F_xx_xx add r4,r4,r9 @ E+=X[i] eor r10,r10,r3,ror#2 @ F_00_19(B,C,D) add r4,r4,r10 @ E+=F_00_19(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r3,r8,r3,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r6,r7 @ F_xx_xx mov r9,r9,ror#31 add r3,r3,r4,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r5,r10,ror#2 @ F_xx_xx @ F_xx_xx add r3,r3,r9 @ E+=X[i] eor r10,r10,r7,ror#2 @ F_00_19(B,C,D) add r3,r3,r10 @ E+=F_00_19(B,C,D) ldr r8,.LK_20_39 @ [+15+16*4] cmn sp,#0 @ [+3], clear carry to denote 20_39 .L_20_39_or_60_79: ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r7,r8,r7,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r5,r6 @ F_xx_xx mov r9,r9,ror#31 add r7,r7,r3,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! eor r10,r4,r10,ror#2 @ F_xx_xx @ F_xx_xx add r7,r7,r9 @ E+=X[i] add r7,r7,r10 @ E+=F_20_39(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r6,r8,r6,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r4,r5 @ F_xx_xx mov r9,r9,ror#31 add r6,r6,r7,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! eor r10,r3,r10,ror#2 @ F_xx_xx @ F_xx_xx add r6,r6,r9 @ E+=X[i] add r6,r6,r10 @ E+=F_20_39(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r5,r8,r5,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r3,r4 @ F_xx_xx mov r9,r9,ror#31 add r5,r5,r6,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! eor r10,r7,r10,ror#2 @ F_xx_xx @ F_xx_xx add r5,r5,r9 @ E+=X[i] add r5,r5,r10 @ E+=F_20_39(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r4,r8,r4,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r7,r3 @ F_xx_xx mov r9,r9,ror#31 add r4,r4,r5,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! eor r10,r6,r10,ror#2 @ F_xx_xx @ F_xx_xx add r4,r4,r9 @ E+=X[i] add r4,r4,r10 @ E+=F_20_39(B,C,D) ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r3,r8,r3,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r6,r7 @ F_xx_xx mov r9,r9,ror#31 add r3,r3,r4,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! eor r10,r5,r10,ror#2 @ F_xx_xx @ F_xx_xx add r3,r3,r9 @ E+=X[i] add r3,r3,r10 @ E+=F_20_39(B,C,D) ARM( teq r14,sp ) @ preserve carry THUMB( mov r11,sp ) THUMB( teq r14,r11 ) @ preserve carry bne .L_20_39_or_60_79 @ [+((12+3)*5+2)*4] bcs .L_done @ [+((12+3)*5+2)*4], spare 300 bytes ldr r8,.LK_40_59 sub sp,sp,#20*4 @ [+2] .L_40_59: ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r7,r8,r7,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r5,r6 @ F_xx_xx mov r9,r9,ror#31 add r7,r7,r3,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r4,r10,ror#2 @ F_xx_xx and r11,r5,r6 @ F_xx_xx add r7,r7,r9 @ E+=X[i] add r7,r7,r10 @ E+=F_40_59(B,C,D) add r7,r7,r11,ror#2 ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r6,r8,r6,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r4,r5 @ F_xx_xx mov r9,r9,ror#31 add r6,r6,r7,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r3,r10,ror#2 @ F_xx_xx and r11,r4,r5 @ F_xx_xx add r6,r6,r9 @ E+=X[i] add r6,r6,r10 @ E+=F_40_59(B,C,D) add r6,r6,r11,ror#2 ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r5,r8,r5,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r3,r4 @ F_xx_xx mov r9,r9,ror#31 add r5,r5,r6,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r7,r10,ror#2 @ F_xx_xx and r11,r3,r4 @ F_xx_xx add r5,r5,r9 @ E+=X[i] add r5,r5,r10 @ E+=F_40_59(B,C,D) add r5,r5,r11,ror#2 ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r4,r8,r4,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r7,r3 @ F_xx_xx mov r9,r9,ror#31 add r4,r4,r5,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r6,r10,ror#2 @ F_xx_xx and r11,r7,r3 @ F_xx_xx add r4,r4,r9 @ E+=X[i] add r4,r4,r10 @ E+=F_40_59(B,C,D) add r4,r4,r11,ror#2 ldr r9,[r14,#15*4] ldr r10,[r14,#13*4] ldr r11,[r14,#7*4] add r3,r8,r3,ror#2 @ E+=K_xx_xx ldr r12,[r14,#2*4] eor r9,r9,r10 eor r11,r11,r12 @ 1 cycle stall eor r10,r6,r7 @ F_xx_xx mov r9,r9,ror#31 add r3,r3,r4,ror#27 @ E+=ROR(A,27) eor r9,r9,r11,ror#31 str r9,[r14,#-4]! and r10,r5,r10,ror#2 @ F_xx_xx and r11,r6,r7 @ F_xx_xx add r3,r3,r9 @ E+=X[i] add r3,r3,r10 @ E+=F_40_59(B,C,D) add r3,r3,r11,ror#2 cmp r14,sp bne .L_40_59 @ [+((12+5)*5+2)*4] ldr r8,.LK_60_79 sub sp,sp,#20*4 cmp sp,#0 @ set carry to denote 60_79 b .L_20_39_or_60_79 @ [+4], spare 300 bytes .L_done: add sp,sp,#80*4 @ "deallocate" stack frame ldmia r0,{r8,r9,r10,r11,r12} add r3,r8,r3 add r4,r9,r4 add r5,r10,r5,ror#2 add r6,r11,r6,ror#2 add r7,r12,r7,ror#2 stmia r0,{r3,r4,r5,r6,r7} teq r1,r2 bne .Lloop @ [+18], total 1307 ldmia sp!,{r4-r12,pc} .align 2 .LK_00_19: .word 0x5a827999 .LK_20_39: .word 0x6ed9eba1 .LK_40_59: .word 0x8f1bbcdc .LK_60_79: .word 0xca62c1d6 ENDPROC(sha1_block_data_order) .asciz "SHA1 block transform for ARMv4, CRYPTOGAMS by <appro@openssl.org>" .align 2 |