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diff --git a/src/lib/libcrypto/sha/asm/sha512-ppc.pl b/src/lib/libcrypto/sha/asm/sha512-ppc.pl
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1#!/usr/bin/env perl
2
3# ====================================================================
4# Written by Andy Polyakov <appro@fy.chalmers.se> 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# I let hardware handle unaligned input, except on page boundaries
11# (see below for details). Otherwise straightforward implementation
12# with X vector in register bank. The module is big-endian [which is
13# not big deal as there're no little-endian targets left around].
14
15# sha256 | sha512
16# -m64 -m32 | -m64 -m32
17# --------------------------------------+-----------------------
18# PPC970,gcc-4.0.0 +50% +38% | +40% +410%(*)
19# Power6,xlc-7 +150% +90% | +100% +430%(*)
20#
21# (*) 64-bit code in 32-bit application context, which actually is
22# on TODO list. It should be noted that for safe deployment in
23# 32-bit *multi-threaded* context asynchronous signals should be
24# blocked upon entry to SHA512 block routine. This is because
25# 32-bit signaling procedure invalidates upper halves of GPRs.
26# Context switch procedure preserves them, but not signaling:-(
27
28# Second version is true multi-thread safe. Trouble with the original
29# version was that it was using thread local storage pointer register.
30# Well, it scrupulously preserved it, but the problem would arise the
31# moment asynchronous signal was delivered and signal handler would
32# dereference the TLS pointer. While it's never the case in openssl
33# application or test suite, we have to respect this scenario and not
34# use TLS pointer register. Alternative would be to require caller to
35# block signals prior calling this routine. For the record, in 32-bit
36# context R2 serves as TLS pointer, while in 64-bit context - R13.
37
38$flavour=shift;
39$output =shift;
40
41if ($flavour =~ /64/) {
42 $SIZE_T=8;
43 $LRSAVE=2*$SIZE_T;
44 $STU="stdu";
45 $UCMP="cmpld";
46 $SHL="sldi";
47 $POP="ld";
48 $PUSH="std";
49} elsif ($flavour =~ /32/) {
50 $SIZE_T=4;
51 $LRSAVE=$SIZE_T;
52 $STU="stwu";
53 $UCMP="cmplw";
54 $SHL="slwi";
55 $POP="lwz";
56 $PUSH="stw";
57} else { die "nonsense $flavour"; }
58
59$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
60( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
61( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
62die "can't locate ppc-xlate.pl";
63
64open STDOUT,"| $^X $xlate $flavour $output" || die "can't call $xlate: $!";
65
66if ($output =~ /512/) {
67 $func="sha512_block_data_order";
68 $SZ=8;
69 @Sigma0=(28,34,39);
70 @Sigma1=(14,18,41);
71 @sigma0=(1, 8, 7);
72 @sigma1=(19,61, 6);
73 $rounds=80;
74 $LD="ld";
75 $ST="std";
76 $ROR="rotrdi";
77 $SHR="srdi";
78} else {
79 $func="sha256_block_data_order";
80 $SZ=4;
81 @Sigma0=( 2,13,22);
82 @Sigma1=( 6,11,25);
83 @sigma0=( 7,18, 3);
84 @sigma1=(17,19,10);
85 $rounds=64;
86 $LD="lwz";
87 $ST="stw";
88 $ROR="rotrwi";
89 $SHR="srwi";
90}
91
92$FRAME=32*$SIZE_T+16*$SZ;
93$LOCALS=6*$SIZE_T;
94
95$sp ="r1";
96$toc="r2";
97$ctx="r3"; # zapped by $a0
98$inp="r4"; # zapped by $a1
99$num="r5"; # zapped by $t0
100
101$T ="r0";
102$a0 ="r3";
103$a1 ="r4";
104$t0 ="r5";
105$t1 ="r6";
106$Tbl="r7";
107
108$A ="r8";
109$B ="r9";
110$C ="r10";
111$D ="r11";
112$E ="r12";
113$F ="r13"; $F="r2" if ($SIZE_T==8);# reassigned to exempt TLS pointer
114$G ="r14";
115$H ="r15";
116
117@V=($A,$B,$C,$D,$E,$F,$G,$H);
118@X=("r16","r17","r18","r19","r20","r21","r22","r23",
119 "r24","r25","r26","r27","r28","r29","r30","r31");
120
121$inp="r31"; # reassigned $inp! aliases with @X[15]
122
123sub ROUND_00_15 {
124my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
125$code.=<<___;
126 $LD $T,`$i*$SZ`($Tbl)
127 $ROR $a0,$e,$Sigma1[0]
128 $ROR $a1,$e,$Sigma1[1]
129 and $t0,$f,$e
130 andc $t1,$g,$e
131 add $T,$T,$h
132 xor $a0,$a0,$a1
133 $ROR $a1,$a1,`$Sigma1[2]-$Sigma1[1]`
134 or $t0,$t0,$t1 ; Ch(e,f,g)
135 add $T,$T,@X[$i]
136 xor $a0,$a0,$a1 ; Sigma1(e)
137 add $T,$T,$t0
138 add $T,$T,$a0
139
140 $ROR $a0,$a,$Sigma0[0]
141 $ROR $a1,$a,$Sigma0[1]
142 and $t0,$a,$b
143 and $t1,$a,$c
144 xor $a0,$a0,$a1
145 $ROR $a1,$a1,`$Sigma0[2]-$Sigma0[1]`
146 xor $t0,$t0,$t1
147 and $t1,$b,$c
148 xor $a0,$a0,$a1 ; Sigma0(a)
149 add $d,$d,$T
150 xor $t0,$t0,$t1 ; Maj(a,b,c)
151 add $h,$T,$a0
152 add $h,$h,$t0
153
154___
155}
156
157sub ROUND_16_xx {
158my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
159$i-=16;
160$code.=<<___;
161 $ROR $a0,@X[($i+1)%16],$sigma0[0]
162 $ROR $a1,@X[($i+1)%16],$sigma0[1]
163 $ROR $t0,@X[($i+14)%16],$sigma1[0]
164 $ROR $t1,@X[($i+14)%16],$sigma1[1]
165 xor $a0,$a0,$a1
166 $SHR $a1,@X[($i+1)%16],$sigma0[2]
167 xor $t0,$t0,$t1
168 $SHR $t1,@X[($i+14)%16],$sigma1[2]
169 add @X[$i],@X[$i],@X[($i+9)%16]
170 xor $a0,$a0,$a1 ; sigma0(X[(i+1)&0x0f])
171 xor $t0,$t0,$t1 ; sigma1(X[(i+14)&0x0f])
172 add @X[$i],@X[$i],$a0
173 add @X[$i],@X[$i],$t0
174___
175&ROUND_00_15($i,$a,$b,$c,$d,$e,$f,$g,$h);
176}
177
178$code=<<___;
179.machine "any"
180.text
181
182.globl $func
183.align 6
184$func:
185 $STU $sp,-$FRAME($sp)
186 mflr r0
187 $SHL $num,$num,`log(16*$SZ)/log(2)`
188
189 $PUSH $ctx,`$FRAME-$SIZE_T*22`($sp)
190
191 $PUSH $toc,`$FRAME-$SIZE_T*20`($sp)
192 $PUSH r13,`$FRAME-$SIZE_T*19`($sp)
193 $PUSH r14,`$FRAME-$SIZE_T*18`($sp)
194 $PUSH r15,`$FRAME-$SIZE_T*17`($sp)
195 $PUSH r16,`$FRAME-$SIZE_T*16`($sp)
196 $PUSH r17,`$FRAME-$SIZE_T*15`($sp)
197 $PUSH r18,`$FRAME-$SIZE_T*14`($sp)
198 $PUSH r19,`$FRAME-$SIZE_T*13`($sp)
199 $PUSH r20,`$FRAME-$SIZE_T*12`($sp)
200 $PUSH r21,`$FRAME-$SIZE_T*11`($sp)
201 $PUSH r22,`$FRAME-$SIZE_T*10`($sp)
202 $PUSH r23,`$FRAME-$SIZE_T*9`($sp)
203 $PUSH r24,`$FRAME-$SIZE_T*8`($sp)
204 $PUSH r25,`$FRAME-$SIZE_T*7`($sp)
205 $PUSH r26,`$FRAME-$SIZE_T*6`($sp)
206 $PUSH r27,`$FRAME-$SIZE_T*5`($sp)
207 $PUSH r28,`$FRAME-$SIZE_T*4`($sp)
208 $PUSH r29,`$FRAME-$SIZE_T*3`($sp)
209 $PUSH r30,`$FRAME-$SIZE_T*2`($sp)
210 $PUSH r31,`$FRAME-$SIZE_T*1`($sp)
211 $PUSH r0,`$FRAME+$LRSAVE`($sp)
212
213 $LD $A,`0*$SZ`($ctx)
214 mr $inp,r4 ; incarnate $inp
215 $LD $B,`1*$SZ`($ctx)
216 $LD $C,`2*$SZ`($ctx)
217 $LD $D,`3*$SZ`($ctx)
218 $LD $E,`4*$SZ`($ctx)
219 $LD $F,`5*$SZ`($ctx)
220 $LD $G,`6*$SZ`($ctx)
221 $LD $H,`7*$SZ`($ctx)
222
223 bl LPICmeup
224LPICedup:
225 andi. r0,$inp,3
226 bne Lunaligned
227Laligned:
228 add $num,$inp,$num
229 $PUSH $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer
230 $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
231 bl Lsha2_block_private
232 b Ldone
233
234; PowerPC specification allows an implementation to be ill-behaved
235; upon unaligned access which crosses page boundary. "Better safe
236; than sorry" principle makes me treat it specially. But I don't
237; look for particular offending word, but rather for the input
238; block which crosses the boundary. Once found that block is aligned
239; and hashed separately...
240.align 4
241Lunaligned:
242 subfic $t1,$inp,4096
243 andi. $t1,$t1,`4096-16*$SZ` ; distance to closest page boundary
244 beq Lcross_page
245 $UCMP $num,$t1
246 ble- Laligned ; didn't cross the page boundary
247 subfc $num,$t1,$num
248 add $t1,$inp,$t1
249 $PUSH $num,`$FRAME-$SIZE_T*25`($sp) ; save real remaining num
250 $PUSH $t1,`$FRAME-$SIZE_T*24`($sp) ; intermediate end pointer
251 $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
252 bl Lsha2_block_private
253 ; $inp equals to the intermediate end pointer here
254 $POP $num,`$FRAME-$SIZE_T*25`($sp) ; restore real remaining num
255Lcross_page:
256 li $t1,`16*$SZ/4`
257 mtctr $t1
258 addi r20,$sp,$LOCALS ; aligned spot below the frame
259Lmemcpy:
260 lbz r16,0($inp)
261 lbz r17,1($inp)
262 lbz r18,2($inp)
263 lbz r19,3($inp)
264 addi $inp,$inp,4
265 stb r16,0(r20)
266 stb r17,1(r20)
267 stb r18,2(r20)
268 stb r19,3(r20)
269 addi r20,r20,4
270 bdnz Lmemcpy
271
272 $PUSH $inp,`$FRAME-$SIZE_T*26`($sp) ; save real inp
273 addi $t1,$sp,`$LOCALS+16*$SZ` ; fictitious end pointer
274 addi $inp,$sp,$LOCALS ; fictitious inp pointer
275 $PUSH $num,`$FRAME-$SIZE_T*25`($sp) ; save real num
276 $PUSH $t1,`$FRAME-$SIZE_T*24`($sp) ; end pointer
277 $PUSH $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
278 bl Lsha2_block_private
279 $POP $inp,`$FRAME-$SIZE_T*26`($sp) ; restore real inp
280 $POP $num,`$FRAME-$SIZE_T*25`($sp) ; restore real num
281 addic. $num,$num,`-16*$SZ` ; num--
282 bne- Lunaligned
283
284Ldone:
285 $POP r0,`$FRAME+$LRSAVE`($sp)
286 $POP $toc,`$FRAME-$SIZE_T*20`($sp)
287 $POP r13,`$FRAME-$SIZE_T*19`($sp)
288 $POP r14,`$FRAME-$SIZE_T*18`($sp)
289 $POP r15,`$FRAME-$SIZE_T*17`($sp)
290 $POP r16,`$FRAME-$SIZE_T*16`($sp)
291 $POP r17,`$FRAME-$SIZE_T*15`($sp)
292 $POP r18,`$FRAME-$SIZE_T*14`($sp)
293 $POP r19,`$FRAME-$SIZE_T*13`($sp)
294 $POP r20,`$FRAME-$SIZE_T*12`($sp)
295 $POP r21,`$FRAME-$SIZE_T*11`($sp)
296 $POP r22,`$FRAME-$SIZE_T*10`($sp)
297 $POP r23,`$FRAME-$SIZE_T*9`($sp)
298 $POP r24,`$FRAME-$SIZE_T*8`($sp)
299 $POP r25,`$FRAME-$SIZE_T*7`($sp)
300 $POP r26,`$FRAME-$SIZE_T*6`($sp)
301 $POP r27,`$FRAME-$SIZE_T*5`($sp)
302 $POP r28,`$FRAME-$SIZE_T*4`($sp)
303 $POP r29,`$FRAME-$SIZE_T*3`($sp)
304 $POP r30,`$FRAME-$SIZE_T*2`($sp)
305 $POP r31,`$FRAME-$SIZE_T*1`($sp)
306 mtlr r0
307 addi $sp,$sp,$FRAME
308 blr
309 .long 0
310 .byte 0,12,4,1,0x80,18,3,0
311 .long 0
312
313.align 4
314Lsha2_block_private:
315___
316for($i=0;$i<16;$i++) {
317$code.=<<___ if ($SZ==4);
318 lwz @X[$i],`$i*$SZ`($inp)
319___
320# 64-bit loads are split to 2x32-bit ones, as CPU can't handle
321# unaligned 64-bit loads, only 32-bit ones...
322$code.=<<___ if ($SZ==8);
323 lwz $t0,`$i*$SZ`($inp)
324 lwz @X[$i],`$i*$SZ+4`($inp)
325 insrdi @X[$i],$t0,32,0
326___
327 &ROUND_00_15($i,@V);
328 unshift(@V,pop(@V));
329}
330$code.=<<___;
331 li $T,`$rounds/16-1`
332 mtctr $T
333.align 4
334Lrounds:
335 addi $Tbl,$Tbl,`16*$SZ`
336___
337for(;$i<32;$i++) {
338 &ROUND_16_xx($i,@V);
339 unshift(@V,pop(@V));
340}
341$code.=<<___;
342 bdnz- Lrounds
343
344 $POP $ctx,`$FRAME-$SIZE_T*22`($sp)
345 $POP $inp,`$FRAME-$SIZE_T*23`($sp) ; inp pointer
346 $POP $num,`$FRAME-$SIZE_T*24`($sp) ; end pointer
347 subi $Tbl,$Tbl,`($rounds-16)*$SZ` ; rewind Tbl
348
349 $LD r16,`0*$SZ`($ctx)
350 $LD r17,`1*$SZ`($ctx)
351 $LD r18,`2*$SZ`($ctx)
352 $LD r19,`3*$SZ`($ctx)
353 $LD r20,`4*$SZ`($ctx)
354 $LD r21,`5*$SZ`($ctx)
355 $LD r22,`6*$SZ`($ctx)
356 addi $inp,$inp,`16*$SZ` ; advance inp
357 $LD r23,`7*$SZ`($ctx)
358 add $A,$A,r16
359 add $B,$B,r17
360 $PUSH $inp,`$FRAME-$SIZE_T*23`($sp)
361 add $C,$C,r18
362 $ST $A,`0*$SZ`($ctx)
363 add $D,$D,r19
364 $ST $B,`1*$SZ`($ctx)
365 add $E,$E,r20
366 $ST $C,`2*$SZ`($ctx)
367 add $F,$F,r21
368 $ST $D,`3*$SZ`($ctx)
369 add $G,$G,r22
370 $ST $E,`4*$SZ`($ctx)
371 add $H,$H,r23
372 $ST $F,`5*$SZ`($ctx)
373 $ST $G,`6*$SZ`($ctx)
374 $UCMP $inp,$num
375 $ST $H,`7*$SZ`($ctx)
376 bne Lsha2_block_private
377 blr
378 .long 0
379 .byte 0,12,0x14,0,0,0,0,0
380___
381
382# Ugly hack here, because PPC assembler syntax seem to vary too
383# much from platforms to platform...
384$code.=<<___;
385.align 6
386LPICmeup:
387 mflr r0
388 bcl 20,31,\$+4
389 mflr $Tbl ; vvvvvv "distance" between . and 1st data entry
390 addi $Tbl,$Tbl,`64-8`
391 mtlr r0
392 blr
393 .long 0
394 .byte 0,12,0x14,0,0,0,0,0
395 .space `64-9*4`
396___
397$code.=<<___ if ($SZ==8);
398 .long 0x428a2f98,0xd728ae22,0x71374491,0x23ef65cd
399 .long 0xb5c0fbcf,0xec4d3b2f,0xe9b5dba5,0x8189dbbc
400 .long 0x3956c25b,0xf348b538,0x59f111f1,0xb605d019
401 .long 0x923f82a4,0xaf194f9b,0xab1c5ed5,0xda6d8118
402 .long 0xd807aa98,0xa3030242,0x12835b01,0x45706fbe
403 .long 0x243185be,0x4ee4b28c,0x550c7dc3,0xd5ffb4e2
404 .long 0x72be5d74,0xf27b896f,0x80deb1fe,0x3b1696b1
405 .long 0x9bdc06a7,0x25c71235,0xc19bf174,0xcf692694
406 .long 0xe49b69c1,0x9ef14ad2,0xefbe4786,0x384f25e3
407 .long 0x0fc19dc6,0x8b8cd5b5,0x240ca1cc,0x77ac9c65
408 .long 0x2de92c6f,0x592b0275,0x4a7484aa,0x6ea6e483
409 .long 0x5cb0a9dc,0xbd41fbd4,0x76f988da,0x831153b5
410 .long 0x983e5152,0xee66dfab,0xa831c66d,0x2db43210
411 .long 0xb00327c8,0x98fb213f,0xbf597fc7,0xbeef0ee4
412 .long 0xc6e00bf3,0x3da88fc2,0xd5a79147,0x930aa725
413 .long 0x06ca6351,0xe003826f,0x14292967,0x0a0e6e70
414 .long 0x27b70a85,0x46d22ffc,0x2e1b2138,0x5c26c926
415 .long 0x4d2c6dfc,0x5ac42aed,0x53380d13,0x9d95b3df
416 .long 0x650a7354,0x8baf63de,0x766a0abb,0x3c77b2a8
417 .long 0x81c2c92e,0x47edaee6,0x92722c85,0x1482353b
418 .long 0xa2bfe8a1,0x4cf10364,0xa81a664b,0xbc423001
419 .long 0xc24b8b70,0xd0f89791,0xc76c51a3,0x0654be30
420 .long 0xd192e819,0xd6ef5218,0xd6990624,0x5565a910
421 .long 0xf40e3585,0x5771202a,0x106aa070,0x32bbd1b8
422 .long 0x19a4c116,0xb8d2d0c8,0x1e376c08,0x5141ab53
423 .long 0x2748774c,0xdf8eeb99,0x34b0bcb5,0xe19b48a8
424 .long 0x391c0cb3,0xc5c95a63,0x4ed8aa4a,0xe3418acb
425 .long 0x5b9cca4f,0x7763e373,0x682e6ff3,0xd6b2b8a3
426 .long 0x748f82ee,0x5defb2fc,0x78a5636f,0x43172f60
427 .long 0x84c87814,0xa1f0ab72,0x8cc70208,0x1a6439ec
428 .long 0x90befffa,0x23631e28,0xa4506ceb,0xde82bde9
429 .long 0xbef9a3f7,0xb2c67915,0xc67178f2,0xe372532b
430 .long 0xca273ece,0xea26619c,0xd186b8c7,0x21c0c207
431 .long 0xeada7dd6,0xcde0eb1e,0xf57d4f7f,0xee6ed178
432 .long 0x06f067aa,0x72176fba,0x0a637dc5,0xa2c898a6
433 .long 0x113f9804,0xbef90dae,0x1b710b35,0x131c471b
434 .long 0x28db77f5,0x23047d84,0x32caab7b,0x40c72493
435 .long 0x3c9ebe0a,0x15c9bebc,0x431d67c4,0x9c100d4c
436 .long 0x4cc5d4be,0xcb3e42b6,0x597f299c,0xfc657e2a
437 .long 0x5fcb6fab,0x3ad6faec,0x6c44198c,0x4a475817
438___
439$code.=<<___ if ($SZ==4);
440 .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
441 .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
442 .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
443 .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
444 .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
445 .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
446 .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
447 .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
448 .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
449 .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
450 .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
451 .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
452 .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
453 .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
454 .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
455 .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
456___
457
458$code =~ s/\`([^\`]*)\`/eval $1/gem;
459print $code;
460close STDOUT;
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-03 22:19:14 +0000