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1#!/usr/bin/env perl
2#
3# ====================================================================
4# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
5# project. The module is, however, dual licensed under OpenSSL and
6# CRYPTOGAMS licenses depending on where you obtain it. For further
7# details see http://www.openssl.org/~appro/cryptogams/.
8# ====================================================================
9#
10# June 2011
11#
12# This is AESNI-CBC+SHA1 "stitch" implementation. The idea, as spelled
13# in http://download.intel.com/design/intarch/papers/323686.pdf, is
14# that since AESNI-CBC encrypt exhibit *very* low instruction-level
15# parallelism, interleaving it with another algorithm would allow to
16# utilize processor resources better and achieve better performance.
17# SHA1 instruction sequences(*) are taken from sha1-x86_64.pl and
18# AESNI code is weaved into it. Below are performance numbers in
19# cycles per processed byte, less is better, for standalone AESNI-CBC
20# encrypt, sum of the latter and standalone SHA1, and "stitched"
21# subroutine:
22#
23# AES-128-CBC +SHA1 stitch gain
24# Westmere 3.77[+5.6] 9.37 6.65 +41%
25# Sandy Bridge 5.05[+5.2(6.3)] 10.25(11.35) 6.16(7.08) +67%(+60%)
26#
27# AES-192-CBC
28# Westmere 4.51 10.11 6.97 +45%
29# Sandy Bridge 6.05 11.25(12.35) 6.34(7.27) +77%(+70%)
30#
31# AES-256-CBC
32# Westmere 5.25 10.85 7.25 +50%
33# Sandy Bridge 7.05 12.25(13.35) 7.06(7.70) +74%(+73%)
34#
35# (*) There are two code paths: SSSE3 and AVX. See sha1-568.pl for
36# background information. Above numbers in parentheses are SSSE3
37# results collected on AVX-capable CPU, i.e. apply on OSes that
38# don't support AVX.
39#
40# Needless to mention that it makes no sense to implement "stitched"
41# *decrypt* subroutine. Because *both* AESNI-CBC decrypt and SHA1
42# fully utilize parallelism, so stitching would not give any gain
43# anyway. Well, there might be some, e.g. because of better cache
44# locality... For reference, here are performance results for
45# standalone AESNI-CBC decrypt:
46#
47# AES-128-CBC AES-192-CBC AES-256-CBC
48# Westmere 1.31 1.55 1.80
49# Sandy Bridge 0.93 1.06 1.22
50
51$flavour = shift;
52$output = shift;
53if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
54
55$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
56
57$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
58( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
59( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
60die "can't locate x86_64-xlate.pl";
61
62$avx=1 if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
63 =~ /GNU assembler version ([2-9]\.[0-9]+)/ &&
64 $1>=2.19);
65$avx=1 if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
66 `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)/ &&
67 $1>=2.09);
68$avx=1 if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
69 `ml64 2>&1` =~ /Version ([0-9]+)\./ &&
70 $1>=10);
71
72open STDOUT,"| $^X $xlate $flavour $output";
73
74# void aesni_cbc_sha1_enc(const void *inp,
75# void *out,
76# size_t length,
77# const AES_KEY *key,
78# unsigned char *iv,
79# SHA_CTX *ctx,
80# const void *in0);
81
82$code.=<<___;
83.text
84.extern OPENSSL_ia32cap_P
85
86.globl aesni_cbc_sha1_enc
87.type aesni_cbc_sha1_enc,\@abi-omnipotent
88.align 16
89aesni_cbc_sha1_enc:
90 # caller should check for SSSE3 and AES-NI bits
91 mov OPENSSL_ia32cap_P+0(%rip),%r10d
92 mov OPENSSL_ia32cap_P+4(%rip),%r11d
93___
94$code.=<<___ if ($avx);
95 and \$`1<<28`,%r11d # mask AVX bit
96 and \$`1<<30`,%r10d # mask "Intel CPU" bit
97 or %r11d,%r10d
98 cmp \$`1<<28|1<<30`,%r10d
99 je aesni_cbc_sha1_enc_avx
100___
101$code.=<<___;
102 jmp aesni_cbc_sha1_enc_ssse3
103 ret
104.size aesni_cbc_sha1_enc,.-aesni_cbc_sha1_enc
105___
106
107my ($in0,$out,$len,$key,$ivp,$ctx,$inp)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9","%r10");
108
109my $Xi=4;
110my @X=map("%xmm$_",(4..7,0..3));
111my @Tx=map("%xmm$_",(8..10));
112my @V=($A,$B,$C,$D,$E)=("%eax","%ebx","%ecx","%edx","%ebp"); # size optimization
113my @T=("%esi","%edi");
114my $j=0; my $jj=0; my $r=0; my $sn=0;
115my $K_XX_XX="%r11";
116my ($iv,$in,$rndkey0)=map("%xmm$_",(11..13));
117my @rndkey=("%xmm14","%xmm15");
118
119sub AUTOLOAD() # thunk [simplified] 32-bit style perlasm
120{ my $opcode = $AUTOLOAD; $opcode =~ s/.*:://;
121 my $arg = pop;
122 $arg = "\$$arg" if ($arg*1 eq $arg);
123 $code .= "\t$opcode\t".join(',',$arg,reverse @_)."\n";
124}
125
126my $_rol=sub { &rol(@_) };
127my $_ror=sub { &ror(@_) };
128
129$code.=<<___;
130.type aesni_cbc_sha1_enc_ssse3,\@function,6
131.align 16
132aesni_cbc_sha1_enc_ssse3:
133 mov `($win64?56:8)`(%rsp),$inp # load 7th argument
134 #shr \$6,$len # debugging artefact
135 #jz .Lepilogue_ssse3 # debugging artefact
136 push %rbx
137 push %rbp
138 push %r12
139 push %r13
140 push %r14
141 push %r15
142 lea `-104-($win64?10*16:0)`(%rsp),%rsp
143 #mov $in0,$inp # debugging artefact
144 #lea 64(%rsp),$ctx # debugging artefact
145___
146$code.=<<___ if ($win64);
147 movaps %xmm6,96+0(%rsp)
148 movaps %xmm7,96+16(%rsp)
149 movaps %xmm8,96+32(%rsp)
150 movaps %xmm9,96+48(%rsp)
151 movaps %xmm10,96+64(%rsp)
152 movaps %xmm11,96+80(%rsp)
153 movaps %xmm12,96+96(%rsp)
154 movaps %xmm13,96+112(%rsp)
155 movaps %xmm14,96+128(%rsp)
156 movaps %xmm15,96+144(%rsp)
157.Lprologue_ssse3:
158___
159$code.=<<___;
160 mov $in0,%r12 # reassign arguments
161 mov $out,%r13
162 mov $len,%r14
163 mov $key,%r15
164 movdqu ($ivp),$iv # load IV
165 mov $ivp,88(%rsp) # save $ivp
166___
167my ($in0,$out,$len,$key)=map("%r$_",(12..15)); # reassign arguments
168my $rounds="${ivp}d";
169$code.=<<___;
170 shl \$6,$len
171 sub $in0,$out
172 mov 240($key),$rounds
173 add $inp,$len # end of input
174
175 lea K_XX_XX(%rip),$K_XX_XX
176 mov 0($ctx),$A # load context
177 mov 4($ctx),$B
178 mov 8($ctx),$C
179 mov 12($ctx),$D
180 mov $B,@T[0] # magic seed
181 mov 16($ctx),$E
182
183 movdqa 64($K_XX_XX),@X[2] # pbswap mask
184 movdqa 0($K_XX_XX),@Tx[1] # K_00_19
185 movdqu 0($inp),@X[-4&7] # load input to %xmm[0-3]
186 movdqu 16($inp),@X[-3&7]
187 movdqu 32($inp),@X[-2&7]
188 movdqu 48($inp),@X[-1&7]
189 pshufb @X[2],@X[-4&7] # byte swap
190 add \$64,$inp
191 pshufb @X[2],@X[-3&7]
192 pshufb @X[2],@X[-2&7]
193 pshufb @X[2],@X[-1&7]
194 paddd @Tx[1],@X[-4&7] # add K_00_19
195 paddd @Tx[1],@X[-3&7]
196 paddd @Tx[1],@X[-2&7]
197 movdqa @X[-4&7],0(%rsp) # X[]+K xfer to IALU
198 psubd @Tx[1],@X[-4&7] # restore X[]
199 movdqa @X[-3&7],16(%rsp)
200 psubd @Tx[1],@X[-3&7]
201 movdqa @X[-2&7],32(%rsp)
202 psubd @Tx[1],@X[-2&7]
203 movups ($key),$rndkey0 # $key[0]
204 movups 16($key),$rndkey[0] # forward reference
205 jmp .Loop_ssse3
206___
207
208my $aesenc=sub {
209 use integer;
210 my ($n,$k)=($r/10,$r%10);
211 if ($k==0) {
212 $code.=<<___;
213 movups `16*$n`($in0),$in # load input
214 xorps $rndkey0,$in
215___
216 $code.=<<___ if ($n);
217 movups $iv,`16*($n-1)`($out,$in0) # write output
218___
219 $code.=<<___;
220 xorps $in,$iv
221 aesenc $rndkey[0],$iv
222 movups `32+16*$k`($key),$rndkey[1]
223___
224 } elsif ($k==9) {
225 $sn++;
226 $code.=<<___;
227 cmp \$11,$rounds
228 jb .Laesenclast$sn
229 movups `32+16*($k+0)`($key),$rndkey[1]
230 aesenc $rndkey[0],$iv
231 movups `32+16*($k+1)`($key),$rndkey[0]
232 aesenc $rndkey[1],$iv
233 je .Laesenclast$sn
234 movups `32+16*($k+2)`($key),$rndkey[1]
235 aesenc $rndkey[0],$iv
236 movups `32+16*($k+3)`($key),$rndkey[0]
237 aesenc $rndkey[1],$iv
238.Laesenclast$sn:
239 aesenclast $rndkey[0],$iv
240 movups 16($key),$rndkey[1] # forward reference
241___
242 } else {
243 $code.=<<___;
244 aesenc $rndkey[0],$iv
245 movups `32+16*$k`($key),$rndkey[1]
246___
247 }
248 $r++; unshift(@rndkey,pop(@rndkey));
249};
250
251sub Xupdate_ssse3_16_31() # recall that $Xi starts wtih 4
252{ use integer;
253 my $body = shift;
254 my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
255 my ($a,$b,$c,$d,$e);
256
257 &movdqa (@X[0],@X[-3&7]);
258 eval(shift(@insns));
259 eval(shift(@insns));
260 &movdqa (@Tx[0],@X[-1&7]);
261 &palignr(@X[0],@X[-4&7],8); # compose "X[-14]" in "X[0]"
262 eval(shift(@insns));
263 eval(shift(@insns));
264
265 &paddd (@Tx[1],@X[-1&7]);
266 eval(shift(@insns));
267 eval(shift(@insns));
268 &psrldq (@Tx[0],4); # "X[-3]", 3 dwords
269 eval(shift(@insns));
270 eval(shift(@insns));
271 &pxor (@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
272 eval(shift(@insns));
273 eval(shift(@insns));
274
275 &pxor (@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]"
276 eval(shift(@insns));
277 eval(shift(@insns));
278 eval(shift(@insns));
279 eval(shift(@insns));
280
281 &pxor (@X[0],@Tx[0]); # "X[0]"^="X[-3]"^"X[-8]"
282 eval(shift(@insns));
283 eval(shift(@insns));
284 &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
285 eval(shift(@insns));
286 eval(shift(@insns));
287
288 &movdqa (@Tx[2],@X[0]);
289 &movdqa (@Tx[0],@X[0]);
290 eval(shift(@insns));
291 eval(shift(@insns));
292 eval(shift(@insns));
293 eval(shift(@insns));
294
295 &pslldq (@Tx[2],12); # "X[0]"<<96, extract one dword
296 &paddd (@X[0],@X[0]);
297 eval(shift(@insns));
298 eval(shift(@insns));
299 eval(shift(@insns));
300 eval(shift(@insns));
301
302 &psrld (@Tx[0],31);
303 eval(shift(@insns));
304 eval(shift(@insns));
305 &movdqa (@Tx[1],@Tx[2]);
306 eval(shift(@insns));
307 eval(shift(@insns));
308
309 &psrld (@Tx[2],30);
310 &por (@X[0],@Tx[0]); # "X[0]"<<<=1
311 eval(shift(@insns));
312 eval(shift(@insns));
313 eval(shift(@insns));
314 eval(shift(@insns));
315
316 &pslld (@Tx[1],2);
317 &pxor (@X[0],@Tx[2]);
318 eval(shift(@insns));
319 eval(shift(@insns));
320 &movdqa (@Tx[2],eval(16*(($Xi)/5))."($K_XX_XX)"); # K_XX_XX
321 eval(shift(@insns));
322 eval(shift(@insns));
323
324 &pxor (@X[0],@Tx[1]); # "X[0]"^=("X[0]">>96)<<<2
325
326 foreach (@insns) { eval; } # remaining instructions [if any]
327
328 $Xi++; push(@X,shift(@X)); # "rotate" X[]
329 push(@Tx,shift(@Tx));
330}
331
332sub Xupdate_ssse3_32_79()
333{ use integer;
334 my $body = shift;
335 my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
336 my ($a,$b,$c,$d,$e);
337
338 &movdqa (@Tx[0],@X[-1&7]) if ($Xi==8);
339 eval(shift(@insns)); # body_20_39
340 &pxor (@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
341 &palignr(@Tx[0],@X[-2&7],8); # compose "X[-6]"
342 eval(shift(@insns));
343 eval(shift(@insns));
344 eval(shift(@insns)); # rol
345
346 &pxor (@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
347 eval(shift(@insns));
348 eval(shift(@insns)) if (@insns[0] !~ /&ro[rl]/);
349 if ($Xi%5) {
350 &movdqa (@Tx[2],@Tx[1]);# "perpetuate" K_XX_XX...
351 } else { # ... or load next one
352 &movdqa (@Tx[2],eval(16*($Xi/5))."($K_XX_XX)");
353 }
354 &paddd (@Tx[1],@X[-1&7]);
355 eval(shift(@insns)); # ror
356 eval(shift(@insns));
357
358 &pxor (@X[0],@Tx[0]); # "X[0]"^="X[-6]"
359 eval(shift(@insns)); # body_20_39
360 eval(shift(@insns));
361 eval(shift(@insns));
362 eval(shift(@insns)); # rol
363
364 &movdqa (@Tx[0],@X[0]);
365 &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
366 eval(shift(@insns));
367 eval(shift(@insns));
368 eval(shift(@insns)); # ror
369 eval(shift(@insns));
370
371 &pslld (@X[0],2);
372 eval(shift(@insns)); # body_20_39
373 eval(shift(@insns));
374 &psrld (@Tx[0],30);
375 eval(shift(@insns));
376 eval(shift(@insns)); # rol
377 eval(shift(@insns));
378 eval(shift(@insns));
379 eval(shift(@insns)); # ror
380 eval(shift(@insns));
381
382 &por (@X[0],@Tx[0]); # "X[0]"<<<=2
383 eval(shift(@insns)); # body_20_39
384 eval(shift(@insns));
385 &movdqa (@Tx[1],@X[0]) if ($Xi<19);
386 eval(shift(@insns));
387 eval(shift(@insns)); # rol
388 eval(shift(@insns));
389 eval(shift(@insns));
390 eval(shift(@insns)); # rol
391 eval(shift(@insns));
392
393 foreach (@insns) { eval; } # remaining instructions
394
395 $Xi++; push(@X,shift(@X)); # "rotate" X[]
396 push(@Tx,shift(@Tx));
397}
398
399sub Xuplast_ssse3_80()
400{ use integer;
401 my $body = shift;
402 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
403 my ($a,$b,$c,$d,$e);
404
405 eval(shift(@insns));
406 &paddd (@Tx[1],@X[-1&7]);
407 eval(shift(@insns));
408 eval(shift(@insns));
409 eval(shift(@insns));
410 eval(shift(@insns));
411
412 &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer IALU
413
414 foreach (@insns) { eval; } # remaining instructions
415
416 &cmp ($inp,$len);
417 &je (".Ldone_ssse3");
418
419 unshift(@Tx,pop(@Tx));
420
421 &movdqa (@X[2],"64($K_XX_XX)"); # pbswap mask
422 &movdqa (@Tx[1],"0($K_XX_XX)"); # K_00_19
423 &movdqu (@X[-4&7],"0($inp)"); # load input
424 &movdqu (@X[-3&7],"16($inp)");
425 &movdqu (@X[-2&7],"32($inp)");
426 &movdqu (@X[-1&7],"48($inp)");
427 &pshufb (@X[-4&7],@X[2]); # byte swap
428 &add ($inp,64);
429
430 $Xi=0;
431}
432
433sub Xloop_ssse3()
434{ use integer;
435 my $body = shift;
436 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
437 my ($a,$b,$c,$d,$e);
438
439 eval(shift(@insns));
440 eval(shift(@insns));
441 &pshufb (@X[($Xi-3)&7],@X[2]);
442 eval(shift(@insns));
443 eval(shift(@insns));
444 &paddd (@X[($Xi-4)&7],@Tx[1]);
445 eval(shift(@insns));
446 eval(shift(@insns));
447 eval(shift(@insns));
448 eval(shift(@insns));
449 &movdqa (eval(16*$Xi)."(%rsp)",@X[($Xi-4)&7]); # X[]+K xfer to IALU
450 eval(shift(@insns));
451 eval(shift(@insns));
452 &psubd (@X[($Xi-4)&7],@Tx[1]);
453
454 foreach (@insns) { eval; }
455 $Xi++;
456}
457
458sub Xtail_ssse3()
459{ use integer;
460 my $body = shift;
461 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
462 my ($a,$b,$c,$d,$e);
463
464 foreach (@insns) { eval; }
465}
466
467sub body_00_19 () {
468 use integer;
469 my ($k,$n);
470 my @r=(
471 '($a,$b,$c,$d,$e)=@V;'.
472 '&add ($e,eval(4*($j&15))."(%rsp)");', # X[]+K xfer
473 '&xor ($c,$d);',
474 '&mov (@T[1],$a);', # $b in next round
475 '&$_rol ($a,5);',
476 '&and (@T[0],$c);', # ($b&($c^$d))
477 '&xor ($c,$d);', # restore $c
478 '&xor (@T[0],$d);',
479 '&add ($e,$a);',
480 '&$_ror ($b,$j?7:2);', # $b>>>2
481 '&add ($e,@T[0]);' .'$j++; unshift(@V,pop(@V)); unshift(@T,pop(@T));'
482 );
483 $n = scalar(@r);
484 $k = (($jj+1)*12/20)*20*$n/12; # 12 aesencs per these 20 rounds
485 @r[$k%$n].='&$aesenc();' if ($jj==$k/$n);
486 $jj++;
487 return @r;
488}
489
490sub body_20_39 () {
491 use integer;
492 my ($k,$n);
493 my @r=(
494 '($a,$b,$c,$d,$e)=@V;'.
495 '&add ($e,eval(4*($j++&15))."(%rsp)");', # X[]+K xfer
496 '&xor (@T[0],$d);', # ($b^$d)
497 '&mov (@T[1],$a);', # $b in next round
498 '&$_rol ($a,5);',
499 '&xor (@T[0],$c);', # ($b^$d^$c)
500 '&add ($e,$a);',
501 '&$_ror ($b,7);', # $b>>>2
502 '&add ($e,@T[0]);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
503 );
504 $n = scalar(@r);
505 $k = (($jj+1)*8/20)*20*$n/8; # 8 aesencs per these 20 rounds
506 @r[$k%$n].='&$aesenc();' if ($jj==$k/$n);
507 $jj++;
508 return @r;
509}
510
511sub body_40_59 () {
512 use integer;
513 my ($k,$n);
514 my @r=(
515 '($a,$b,$c,$d,$e)=@V;'.
516 '&mov (@T[1],$c);',
517 '&xor ($c,$d);',
518 '&add ($e,eval(4*($j++&15))."(%rsp)");', # X[]+K xfer
519 '&and (@T[1],$d);',
520 '&and (@T[0],$c);', # ($b&($c^$d))
521 '&$_ror ($b,7);', # $b>>>2
522 '&add ($e,@T[1]);',
523 '&mov (@T[1],$a);', # $b in next round
524 '&$_rol ($a,5);',
525 '&add ($e,@T[0]);',
526 '&xor ($c,$d);', # restore $c
527 '&add ($e,$a);' .'unshift(@V,pop(@V)); unshift(@T,pop(@T));'
528 );
529 $n = scalar(@r);
530 $k=(($jj+1)*12/20)*20*$n/12; # 12 aesencs per these 20 rounds
531 @r[$k%$n].='&$aesenc();' if ($jj==$k/$n);
532 $jj++;
533 return @r;
534}
535$code.=<<___;
536.align 16
537.Loop_ssse3:
538___
539 &Xupdate_ssse3_16_31(\&body_00_19);
540 &Xupdate_ssse3_16_31(\&body_00_19);
541 &Xupdate_ssse3_16_31(\&body_00_19);
542 &Xupdate_ssse3_16_31(\&body_00_19);
543 &Xupdate_ssse3_32_79(\&body_00_19);
544 &Xupdate_ssse3_32_79(\&body_20_39);
545 &Xupdate_ssse3_32_79(\&body_20_39);
546 &Xupdate_ssse3_32_79(\&body_20_39);
547 &Xupdate_ssse3_32_79(\&body_20_39);
548 &Xupdate_ssse3_32_79(\&body_20_39);
549 &Xupdate_ssse3_32_79(\&body_40_59);
550 &Xupdate_ssse3_32_79(\&body_40_59);
551 &Xupdate_ssse3_32_79(\&body_40_59);
552 &Xupdate_ssse3_32_79(\&body_40_59);
553 &Xupdate_ssse3_32_79(\&body_40_59);
554 &Xupdate_ssse3_32_79(\&body_20_39);
555 &Xuplast_ssse3_80(\&body_20_39); # can jump to "done"
556
557 $saved_j=$j; @saved_V=@V;
558 $saved_r=$r; @saved_rndkey=@rndkey;
559
560 &Xloop_ssse3(\&body_20_39);
561 &Xloop_ssse3(\&body_20_39);
562 &Xloop_ssse3(\&body_20_39);
563
564$code.=<<___;
565 movups $iv,48($out,$in0) # write output
566 lea 64($in0),$in0
567
568 add 0($ctx),$A # update context
569 add 4($ctx),@T[0]
570 add 8($ctx),$C
571 add 12($ctx),$D
572 mov $A,0($ctx)
573 add 16($ctx),$E
574 mov @T[0],4($ctx)
575 mov @T[0],$B # magic seed
576 mov $C,8($ctx)
577 mov $D,12($ctx)
578 mov $E,16($ctx)
579 jmp .Loop_ssse3
580
581.align 16
582.Ldone_ssse3:
583___
584 $jj=$j=$saved_j; @V=@saved_V;
585 $r=$saved_r; @rndkey=@saved_rndkey;
586
587 &Xtail_ssse3(\&body_20_39);
588 &Xtail_ssse3(\&body_20_39);
589 &Xtail_ssse3(\&body_20_39);
590
591$code.=<<___;
592 movups $iv,48($out,$in0) # write output
593 mov 88(%rsp),$ivp # restore $ivp
594
595 add 0($ctx),$A # update context
596 add 4($ctx),@T[0]
597 add 8($ctx),$C
598 mov $A,0($ctx)
599 add 12($ctx),$D
600 mov @T[0],4($ctx)
601 add 16($ctx),$E
602 mov $C,8($ctx)
603 mov $D,12($ctx)
604 mov $E,16($ctx)
605 movups $iv,($ivp) # write IV
606___
607$code.=<<___ if ($win64);
608 movaps 96+0(%rsp),%xmm6
609 movaps 96+16(%rsp),%xmm7
610 movaps 96+32(%rsp),%xmm8
611 movaps 96+48(%rsp),%xmm9
612 movaps 96+64(%rsp),%xmm10
613 movaps 96+80(%rsp),%xmm11
614 movaps 96+96(%rsp),%xmm12
615 movaps 96+112(%rsp),%xmm13
616 movaps 96+128(%rsp),%xmm14
617 movaps 96+144(%rsp),%xmm15
618___
619$code.=<<___;
620 lea `104+($win64?10*16:0)`(%rsp),%rsi
621 mov 0(%rsi),%r15
622 mov 8(%rsi),%r14
623 mov 16(%rsi),%r13
624 mov 24(%rsi),%r12
625 mov 32(%rsi),%rbp
626 mov 40(%rsi),%rbx
627 lea 48(%rsi),%rsp
628.Lepilogue_ssse3:
629 ret
630.size aesni_cbc_sha1_enc_ssse3,.-aesni_cbc_sha1_enc_ssse3
631___
632
633$j=$jj=$r=$sn=0;
634
635if ($avx) {
636my ($in0,$out,$len,$key,$ivp,$ctx,$inp)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9","%r10");
637
638my $Xi=4;
639my @X=map("%xmm$_",(4..7,0..3));
640my @Tx=map("%xmm$_",(8..10));
641my @V=($A,$B,$C,$D,$E)=("%eax","%ebx","%ecx","%edx","%ebp"); # size optimization
642my @T=("%esi","%edi");
643
644my $_rol=sub { &shld(@_[0],@_) };
645my $_ror=sub { &shrd(@_[0],@_) };
646
647$code.=<<___;
648.type aesni_cbc_sha1_enc_avx,\@function,6
649.align 16
650aesni_cbc_sha1_enc_avx:
651 mov `($win64?56:8)`(%rsp),$inp # load 7th argument
652 #shr \$6,$len # debugging artefact
653 #jz .Lepilogue_avx # debugging artefact
654 push %rbx
655 push %rbp
656 push %r12
657 push %r13
658 push %r14
659 push %r15
660 lea `-104-($win64?10*16:0)`(%rsp),%rsp
661 #mov $in0,$inp # debugging artefact
662 #lea 64(%rsp),$ctx # debugging artefact
663___
664$code.=<<___ if ($win64);
665 movaps %xmm6,96+0(%rsp)
666 movaps %xmm7,96+16(%rsp)
667 movaps %xmm8,96+32(%rsp)
668 movaps %xmm9,96+48(%rsp)
669 movaps %xmm10,96+64(%rsp)
670 movaps %xmm11,96+80(%rsp)
671 movaps %xmm12,96+96(%rsp)
672 movaps %xmm13,96+112(%rsp)
673 movaps %xmm14,96+128(%rsp)
674 movaps %xmm15,96+144(%rsp)
675.Lprologue_avx:
676___
677$code.=<<___;
678 vzeroall
679 mov $in0,%r12 # reassign arguments
680 mov $out,%r13
681 mov $len,%r14
682 mov $key,%r15
683 vmovdqu ($ivp),$iv # load IV
684 mov $ivp,88(%rsp) # save $ivp
685___
686my ($in0,$out,$len,$key)=map("%r$_",(12..15)); # reassign arguments
687my $rounds="${ivp}d";
688$code.=<<___;
689 shl \$6,$len
690 sub $in0,$out
691 mov 240($key),$rounds
692 add \$112,$key # size optimization
693 add $inp,$len # end of input
694
695 lea K_XX_XX(%rip),$K_XX_XX
696 mov 0($ctx),$A # load context
697 mov 4($ctx),$B
698 mov 8($ctx),$C
699 mov 12($ctx),$D
700 mov $B,@T[0] # magic seed
701 mov 16($ctx),$E
702
703 vmovdqa 64($K_XX_XX),@X[2] # pbswap mask
704 vmovdqa 0($K_XX_XX),@Tx[1] # K_00_19
705 vmovdqu 0($inp),@X[-4&7] # load input to %xmm[0-3]
706 vmovdqu 16($inp),@X[-3&7]
707 vmovdqu 32($inp),@X[-2&7]
708 vmovdqu 48($inp),@X[-1&7]
709 vpshufb @X[2],@X[-4&7],@X[-4&7] # byte swap
710 add \$64,$inp
711 vpshufb @X[2],@X[-3&7],@X[-3&7]
712 vpshufb @X[2],@X[-2&7],@X[-2&7]
713 vpshufb @X[2],@X[-1&7],@X[-1&7]
714 vpaddd @Tx[1],@X[-4&7],@X[0] # add K_00_19
715 vpaddd @Tx[1],@X[-3&7],@X[1]
716 vpaddd @Tx[1],@X[-2&7],@X[2]
717 vmovdqa @X[0],0(%rsp) # X[]+K xfer to IALU
718 vmovdqa @X[1],16(%rsp)
719 vmovdqa @X[2],32(%rsp)
720 vmovups -112($key),$rndkey0 # $key[0]
721 vmovups 16-112($key),$rndkey[0] # forward reference
722 jmp .Loop_avx
723___
724
725my $aesenc=sub {
726 use integer;
727 my ($n,$k)=($r/10,$r%10);
728 if ($k==0) {
729 $code.=<<___;
730 vmovups `16*$n`($in0),$in # load input
731 vxorps $rndkey0,$in,$in
732___
733 $code.=<<___ if ($n);
734 vmovups $iv,`16*($n-1)`($out,$in0) # write output
735___
736 $code.=<<___;
737 vxorps $in,$iv,$iv
738 vaesenc $rndkey[0],$iv,$iv
739 vmovups `32+16*$k-112`($key),$rndkey[1]
740___
741 } elsif ($k==9) {
742 $sn++;
743 $code.=<<___;
744 cmp \$11,$rounds
745 jb .Lvaesenclast$sn
746 vaesenc $rndkey[0],$iv,$iv
747 vmovups `32+16*($k+0)-112`($key),$rndkey[1]
748 vaesenc $rndkey[1],$iv,$iv
749 vmovups `32+16*($k+1)-112`($key),$rndkey[0]
750 je .Lvaesenclast$sn
751 vaesenc $rndkey[0],$iv,$iv
752 vmovups `32+16*($k+2)-112`($key),$rndkey[1]
753 vaesenc $rndkey[1],$iv,$iv
754 vmovups `32+16*($k+3)-112`($key),$rndkey[0]
755.Lvaesenclast$sn:
756 vaesenclast $rndkey[0],$iv,$iv
757 vmovups 16-112($key),$rndkey[1] # forward reference
758___
759 } else {
760 $code.=<<___;
761 vaesenc $rndkey[0],$iv,$iv
762 vmovups `32+16*$k-112`($key),$rndkey[1]
763___
764 }
765 $r++; unshift(@rndkey,pop(@rndkey));
766};
767
768sub Xupdate_avx_16_31() # recall that $Xi starts wtih 4
769{ use integer;
770 my $body = shift;
771 my @insns = (&$body,&$body,&$body,&$body); # 40 instructions
772 my ($a,$b,$c,$d,$e);
773
774 eval(shift(@insns));
775 eval(shift(@insns));
776 &vpalignr(@X[0],@X[-3&7],@X[-4&7],8); # compose "X[-14]" in "X[0]"
777 eval(shift(@insns));
778 eval(shift(@insns));
779
780 &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
781 eval(shift(@insns));
782 eval(shift(@insns));
783 &vpsrldq(@Tx[0],@X[-1&7],4); # "X[-3]", 3 dwords
784 eval(shift(@insns));
785 eval(shift(@insns));
786 &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"^="X[-16]"
787 eval(shift(@insns));
788 eval(shift(@insns));
789
790 &vpxor (@Tx[0],@Tx[0],@X[-2&7]); # "X[-3]"^"X[-8]"
791 eval(shift(@insns));
792 eval(shift(@insns));
793 eval(shift(@insns));
794 eval(shift(@insns));
795
796 &vpxor (@X[0],@X[0],@Tx[0]); # "X[0]"^="X[-3]"^"X[-8]"
797 eval(shift(@insns));
798 eval(shift(@insns));
799 &vmovdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
800 eval(shift(@insns));
801 eval(shift(@insns));
802
803 &vpsrld (@Tx[0],@X[0],31);
804 eval(shift(@insns));
805 eval(shift(@insns));
806 eval(shift(@insns));
807 eval(shift(@insns));
808
809 &vpslldq(@Tx[2],@X[0],12); # "X[0]"<<96, extract one dword
810 &vpaddd (@X[0],@X[0],@X[0]);
811 eval(shift(@insns));
812 eval(shift(@insns));
813 eval(shift(@insns));
814 eval(shift(@insns));
815
816 &vpsrld (@Tx[1],@Tx[2],30);
817 &vpor (@X[0],@X[0],@Tx[0]); # "X[0]"<<<=1
818 eval(shift(@insns));
819 eval(shift(@insns));
820 eval(shift(@insns));
821 eval(shift(@insns));
822
823 &vpslld (@Tx[2],@Tx[2],2);
824 &vpxor (@X[0],@X[0],@Tx[1]);
825 eval(shift(@insns));
826 eval(shift(@insns));
827 eval(shift(@insns));
828 eval(shift(@insns));
829
830 &vpxor (@X[0],@X[0],@Tx[2]); # "X[0]"^=("X[0]">>96)<<<2
831 eval(shift(@insns));
832 eval(shift(@insns));
833 &vmovdqa (@Tx[2],eval(16*(($Xi)/5))."($K_XX_XX)"); # K_XX_XX
834 eval(shift(@insns));
835 eval(shift(@insns));
836
837
838 foreach (@insns) { eval; } # remaining instructions [if any]
839
840 $Xi++; push(@X,shift(@X)); # "rotate" X[]
841 push(@Tx,shift(@Tx));
842}
843
844sub Xupdate_avx_32_79()
845{ use integer;
846 my $body = shift;
847 my @insns = (&$body,&$body,&$body,&$body); # 32 to 48 instructions
848 my ($a,$b,$c,$d,$e);
849
850 &vpalignr(@Tx[0],@X[-1&7],@X[-2&7],8); # compose "X[-6]"
851 &vpxor (@X[0],@X[0],@X[-4&7]); # "X[0]"="X[-32]"^"X[-16]"
852 eval(shift(@insns)); # body_20_39
853 eval(shift(@insns));
854 eval(shift(@insns));
855 eval(shift(@insns)); # rol
856
857 &vpxor (@X[0],@X[0],@X[-7&7]); # "X[0]"^="X[-28]"
858 eval(shift(@insns));
859 eval(shift(@insns)) if (@insns[0] !~ /&ro[rl]/);
860 if ($Xi%5) {
861 &vmovdqa (@Tx[2],@Tx[1]);# "perpetuate" K_XX_XX...
862 } else { # ... or load next one
863 &vmovdqa (@Tx[2],eval(16*($Xi/5))."($K_XX_XX)");
864 }
865 &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
866 eval(shift(@insns)); # ror
867 eval(shift(@insns));
868
869 &vpxor (@X[0],@X[0],@Tx[0]); # "X[0]"^="X[-6]"
870 eval(shift(@insns)); # body_20_39
871 eval(shift(@insns));
872 eval(shift(@insns));
873 eval(shift(@insns)); # rol
874
875 &vpsrld (@Tx[0],@X[0],30);
876 &vmovdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer to IALU
877 eval(shift(@insns));
878 eval(shift(@insns));
879 eval(shift(@insns)); # ror
880 eval(shift(@insns));
881
882 &vpslld (@X[0],@X[0],2);
883 eval(shift(@insns)); # body_20_39
884 eval(shift(@insns));
885 eval(shift(@insns));
886 eval(shift(@insns)); # rol
887 eval(shift(@insns));
888 eval(shift(@insns));
889 eval(shift(@insns)); # ror
890 eval(shift(@insns));
891
892 &vpor (@X[0],@X[0],@Tx[0]); # "X[0]"<<<=2
893 eval(shift(@insns)); # body_20_39
894 eval(shift(@insns));
895 &vmovdqa (@Tx[1],@X[0]) if ($Xi<19);
896 eval(shift(@insns));
897 eval(shift(@insns)); # rol
898 eval(shift(@insns));
899 eval(shift(@insns));
900 eval(shift(@insns)); # rol
901 eval(shift(@insns));
902
903 foreach (@insns) { eval; } # remaining instructions
904
905 $Xi++; push(@X,shift(@X)); # "rotate" X[]
906 push(@Tx,shift(@Tx));
907}
908
909sub Xuplast_avx_80()
910{ use integer;
911 my $body = shift;
912 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
913 my ($a,$b,$c,$d,$e);
914
915 eval(shift(@insns));
916 &vpaddd (@Tx[1],@Tx[1],@X[-1&7]);
917 eval(shift(@insns));
918 eval(shift(@insns));
919 eval(shift(@insns));
920 eval(shift(@insns));
921
922 &movdqa (eval(16*(($Xi-1)&3))."(%rsp)",@Tx[1]); # X[]+K xfer IALU
923
924 foreach (@insns) { eval; } # remaining instructions
925
926 &cmp ($inp,$len);
927 &je (".Ldone_avx");
928
929 unshift(@Tx,pop(@Tx));
930
931 &vmovdqa(@X[2],"64($K_XX_XX)"); # pbswap mask
932 &vmovdqa(@Tx[1],"0($K_XX_XX)"); # K_00_19
933 &vmovdqu(@X[-4&7],"0($inp)"); # load input
934 &vmovdqu(@X[-3&7],"16($inp)");
935 &vmovdqu(@X[-2&7],"32($inp)");
936 &vmovdqu(@X[-1&7],"48($inp)");
937 &vpshufb(@X[-4&7],@X[-4&7],@X[2]); # byte swap
938 &add ($inp,64);
939
940 $Xi=0;
941}
942
943sub Xloop_avx()
944{ use integer;
945 my $body = shift;
946 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
947 my ($a,$b,$c,$d,$e);
948
949 eval(shift(@insns));
950 eval(shift(@insns));
951 &vpshufb(@X[($Xi-3)&7],@X[($Xi-3)&7],@X[2]);
952 eval(shift(@insns));
953 eval(shift(@insns));
954 &vpaddd (@X[$Xi&7],@X[($Xi-4)&7],@Tx[1]);
955 eval(shift(@insns));
956 eval(shift(@insns));
957 eval(shift(@insns));
958 eval(shift(@insns));
959 &vmovdqa(eval(16*$Xi)."(%rsp)",@X[$Xi&7]); # X[]+K xfer to IALU
960 eval(shift(@insns));
961 eval(shift(@insns));
962
963 foreach (@insns) { eval; }
964 $Xi++;
965}
966
967sub Xtail_avx()
968{ use integer;
969 my $body = shift;
970 my @insns = (&$body,&$body,&$body,&$body); # 32 instructions
971 my ($a,$b,$c,$d,$e);
972
973 foreach (@insns) { eval; }
974}
975
976$code.=<<___;
977.align 16
978.Loop_avx:
979___
980 &Xupdate_avx_16_31(\&body_00_19);
981 &Xupdate_avx_16_31(\&body_00_19);
982 &Xupdate_avx_16_31(\&body_00_19);
983 &Xupdate_avx_16_31(\&body_00_19);
984 &Xupdate_avx_32_79(\&body_00_19);
985 &Xupdate_avx_32_79(\&body_20_39);
986 &Xupdate_avx_32_79(\&body_20_39);
987 &Xupdate_avx_32_79(\&body_20_39);
988 &Xupdate_avx_32_79(\&body_20_39);
989 &Xupdate_avx_32_79(\&body_20_39);
990 &Xupdate_avx_32_79(\&body_40_59);
991 &Xupdate_avx_32_79(\&body_40_59);
992 &Xupdate_avx_32_79(\&body_40_59);
993 &Xupdate_avx_32_79(\&body_40_59);
994 &Xupdate_avx_32_79(\&body_40_59);
995 &Xupdate_avx_32_79(\&body_20_39);
996 &Xuplast_avx_80(\&body_20_39); # can jump to "done"
997
998 $saved_j=$j; @saved_V=@V;
999 $saved_r=$r; @saved_rndkey=@rndkey;
1000
1001 &Xloop_avx(\&body_20_39);
1002 &Xloop_avx(\&body_20_39);
1003 &Xloop_avx(\&body_20_39);
1004
1005$code.=<<___;
1006 vmovups $iv,48($out,$in0) # write output
1007 lea 64($in0),$in0
1008
1009 add 0($ctx),$A # update context
1010 add 4($ctx),@T[0]
1011 add 8($ctx),$C
1012 add 12($ctx),$D
1013 mov $A,0($ctx)
1014 add 16($ctx),$E
1015 mov @T[0],4($ctx)
1016 mov @T[0],$B # magic seed
1017 mov $C,8($ctx)
1018 mov $D,12($ctx)
1019 mov $E,16($ctx)
1020 jmp .Loop_avx
1021
1022.align 16
1023.Ldone_avx:
1024___
1025 $jj=$j=$saved_j; @V=@saved_V;
1026 $r=$saved_r; @rndkey=@saved_rndkey;
1027
1028 &Xtail_avx(\&body_20_39);
1029 &Xtail_avx(\&body_20_39);
1030 &Xtail_avx(\&body_20_39);
1031
1032$code.=<<___;
1033 vmovups $iv,48($out,$in0) # write output
1034 mov 88(%rsp),$ivp # restore $ivp
1035
1036 add 0($ctx),$A # update context
1037 add 4($ctx),@T[0]
1038 add 8($ctx),$C
1039 mov $A,0($ctx)
1040 add 12($ctx),$D
1041 mov @T[0],4($ctx)
1042 add 16($ctx),$E
1043 mov $C,8($ctx)
1044 mov $D,12($ctx)
1045 mov $E,16($ctx)
1046 vmovups $iv,($ivp) # write IV
1047 vzeroall
1048___
1049$code.=<<___ if ($win64);
1050 movaps 96+0(%rsp),%xmm6
1051 movaps 96+16(%rsp),%xmm7
1052 movaps 96+32(%rsp),%xmm8
1053 movaps 96+48(%rsp),%xmm9
1054 movaps 96+64(%rsp),%xmm10
1055 movaps 96+80(%rsp),%xmm11
1056 movaps 96+96(%rsp),%xmm12
1057 movaps 96+112(%rsp),%xmm13
1058 movaps 96+128(%rsp),%xmm14
1059 movaps 96+144(%rsp),%xmm15
1060___
1061$code.=<<___;
1062 lea `104+($win64?10*16:0)`(%rsp),%rsi
1063 mov 0(%rsi),%r15
1064 mov 8(%rsi),%r14
1065 mov 16(%rsi),%r13
1066 mov 24(%rsi),%r12
1067 mov 32(%rsi),%rbp
1068 mov 40(%rsi),%rbx
1069 lea 48(%rsi),%rsp
1070.Lepilogue_avx:
1071 ret
1072.size aesni_cbc_sha1_enc_avx,.-aesni_cbc_sha1_enc_avx
1073___
1074}
1075$code.=<<___;
1076.align 64
1077K_XX_XX:
1078.long 0x5a827999,0x5a827999,0x5a827999,0x5a827999 # K_00_19
1079.long 0x6ed9eba1,0x6ed9eba1,0x6ed9eba1,0x6ed9eba1 # K_20_39
1080.long 0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc,0x8f1bbcdc # K_40_59
1081.long 0xca62c1d6,0xca62c1d6,0xca62c1d6,0xca62c1d6 # K_60_79
1082.long 0x00010203,0x04050607,0x08090a0b,0x0c0d0e0f # pbswap mask
1083
1084.asciz "AESNI-CBC+SHA1 stitch for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
1085.align 64
1086___
1087
1088# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
1089# CONTEXT *context,DISPATCHER_CONTEXT *disp)
1090if ($win64) {
1091$rec="%rcx";
1092$frame="%rdx";
1093$context="%r8";
1094$disp="%r9";
1095
1096$code.=<<___;
1097.extern __imp_RtlVirtualUnwind
1098.type ssse3_handler,\@abi-omnipotent
1099.align 16
1100ssse3_handler:
1101 push %rsi
1102 push %rdi
1103 push %rbx
1104 push %rbp
1105 push %r12
1106 push %r13
1107 push %r14
1108 push %r15
1109 pushfq
1110 sub \$64,%rsp
1111
1112 mov 120($context),%rax # pull context->Rax
1113 mov 248($context),%rbx # pull context->Rip
1114
1115 mov 8($disp),%rsi # disp->ImageBase
1116 mov 56($disp),%r11 # disp->HandlerData
1117
1118 mov 0(%r11),%r10d # HandlerData[0]
1119 lea (%rsi,%r10),%r10 # prologue label
1120 cmp %r10,%rbx # context->Rip<prologue label
1121 jb .Lcommon_seh_tail
1122
1123 mov 152($context),%rax # pull context->Rsp
1124
1125 mov 4(%r11),%r10d # HandlerData[1]
1126 lea (%rsi,%r10),%r10 # epilogue label
1127 cmp %r10,%rbx # context->Rip>=epilogue label
1128 jae .Lcommon_seh_tail
1129
1130 lea 96(%rax),%rsi
1131 lea 512($context),%rdi # &context.Xmm6
1132 mov \$20,%ecx
1133 .long 0xa548f3fc # cld; rep movsq
1134 lea `104+10*16`(%rax),%rax # adjust stack pointer
1135
1136 mov 0(%rax),%r15
1137 mov 8(%rax),%r14
1138 mov 16(%rax),%r13
1139 mov 24(%rax),%r12
1140 mov 32(%rax),%rbp
1141 mov 40(%rax),%rbx
1142 lea 48(%rax),%rax
1143 mov %rbx,144($context) # restore context->Rbx
1144 mov %rbp,160($context) # restore context->Rbp
1145 mov %r12,216($context) # restore context->R12
1146 mov %r13,224($context) # restore context->R13
1147 mov %r14,232($context) # restore context->R14
1148 mov %r15,240($context) # restore context->R15
1149
1150.Lcommon_seh_tail:
1151 mov 8(%rax),%rdi
1152 mov 16(%rax),%rsi
1153 mov %rax,152($context) # restore context->Rsp
1154 mov %rsi,168($context) # restore context->Rsi
1155 mov %rdi,176($context) # restore context->Rdi
1156
1157 mov 40($disp),%rdi # disp->ContextRecord
1158 mov $context,%rsi # context
1159 mov \$154,%ecx # sizeof(CONTEXT)
1160 .long 0xa548f3fc # cld; rep movsq
1161
1162 mov $disp,%rsi
1163 xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
1164 mov 8(%rsi),%rdx # arg2, disp->ImageBase
1165 mov 0(%rsi),%r8 # arg3, disp->ControlPc
1166 mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
1167 mov 40(%rsi),%r10 # disp->ContextRecord
1168 lea 56(%rsi),%r11 # &disp->HandlerData
1169 lea 24(%rsi),%r12 # &disp->EstablisherFrame
1170 mov %r10,32(%rsp) # arg5
1171 mov %r11,40(%rsp) # arg6
1172 mov %r12,48(%rsp) # arg7
1173 mov %rcx,56(%rsp) # arg8, (NULL)
1174 call *__imp_RtlVirtualUnwind(%rip)
1175
1176 mov \$1,%eax # ExceptionContinueSearch
1177 add \$64,%rsp
1178 popfq
1179 pop %r15
1180 pop %r14
1181 pop %r13
1182 pop %r12
1183 pop %rbp
1184 pop %rbx
1185 pop %rdi
1186 pop %rsi
1187 ret
1188.size ssse3_handler,.-ssse3_handler
1189
1190.section .pdata
1191.align 4
1192 .rva .LSEH_begin_aesni_cbc_sha1_enc_ssse3
1193 .rva .LSEH_end_aesni_cbc_sha1_enc_ssse3
1194 .rva .LSEH_info_aesni_cbc_sha1_enc_ssse3
1195___
1196$code.=<<___ if ($avx);
1197 .rva .LSEH_begin_aesni_cbc_sha1_enc_avx
1198 .rva .LSEH_end_aesni_cbc_sha1_enc_avx
1199 .rva .LSEH_info_aesni_cbc_sha1_enc_avx
1200___
1201$code.=<<___;
1202.section .xdata
1203.align 8
1204.LSEH_info_aesni_cbc_sha1_enc_ssse3:
1205 .byte 9,0,0,0
1206 .rva ssse3_handler
1207 .rva .Lprologue_ssse3,.Lepilogue_ssse3 # HandlerData[]
1208___
1209$code.=<<___ if ($avx);
1210.LSEH_info_aesni_cbc_sha1_enc_avx:
1211 .byte 9,0,0,0
1212 .rva ssse3_handler
1213 .rva .Lprologue_avx,.Lepilogue_avx # HandlerData[]
1214___
1215}
1216
1217####################################################################
1218sub rex {
1219 local *opcode=shift;
1220 my ($dst,$src)=@_;
1221 my $rex=0;
1222
1223 $rex|=0x04 if($dst>=8);
1224 $rex|=0x01 if($src>=8);
1225 push @opcode,$rex|0x40 if($rex);
1226}
1227
1228sub aesni {
1229 my $line=shift;
1230 my @opcode=(0x66);
1231
1232 if ($line=~/(aes[a-z]+)\s+%xmm([0-9]+),\s*%xmm([0-9]+)/) {
1233 my %opcodelet = (
1234 "aesenc" => 0xdc, "aesenclast" => 0xdd
1235 );
1236 return undef if (!defined($opcodelet{$1}));
1237 rex(\@opcode,$3,$2);
1238 push @opcode,0x0f,0x38,$opcodelet{$1};
1239 push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
1240 return ".byte\t".join(',',@opcode);
1241 }
1242 return $line;
1243}
1244
1245$code =~ s/\`([^\`]*)\`/eval($1)/gem;
1246$code =~ s/\b(aes.*%xmm[0-9]+).*$/aesni($1)/gem;
1247
1248print $code;
1249close STDOUT;
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-05 07:34:52 +0000