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source: vbox/trunk/src/libs/openssl-3.1.3/crypto/perlasm/ppc-xlate.pl@ 102427

Last change on this file since 102427 was 101211, checked in by vboxsync, 17 months ago

openssl-3.1.3: Applied and adjusted our OpenSSL changes to 3.1.2. bugref:10527

  • Property svn:executable set to *
File size: 12.5 KB
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1#! /usr/bin/env perl
2# Copyright 2006-2022 The OpenSSL Project Authors. All Rights Reserved.
3#
4# Licensed under the Apache License 2.0 (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
9my $flavour = shift;
10my $output = shift;
11open STDOUT,">$output" || die "can't open $output: $!";
12
13my %GLOBALS;
14my %TYPES;
15my $dotinlocallabels=($flavour=~/linux/)?1:0;
16
17################################################################
18# directives which need special treatment on different platforms
19################################################################
20my $type = sub {
21 my ($dir,$name,$type) = @_;
22
23 $TYPES{$name} = $type;
24 if ($flavour =~ /linux/) {
25 $name =~ s|^\.||;
26 ".type $name,$type";
27 } else {
28 "";
29 }
30};
31my $globl = sub {
32 my $junk = shift;
33 my $name = shift;
34 my $global = \$GLOBALS{$name};
35 my $type = \$TYPES{$name};
36 my $ret;
37
38 $name =~ s|^\.||;
39
40 SWITCH: for ($flavour) {
41 /aix/ && do { if (!$$type) {
42 $$type = "\@function";
43 }
44 if ($$type =~ /function/) {
45 $name = ".$name";
46 }
47 last;
48 };
49 /osx/ && do { $name = "_$name";
50 last;
51 };
52 /linux.*(32|64(le|v2))/
53 && do { $ret .= ".globl $name";
54 if (!$$type) {
55 $ret .= "\n.type $name,\@function";
56 $$type = "\@function";
57 }
58 last;
59 };
60 /linux.*64/ && do { $ret .= ".globl $name";
61 if (!$$type) {
62 $ret .= "\n.type $name,\@function";
63 $$type = "\@function";
64 }
65 if ($$type =~ /function/) {
66 $ret .= "\n.section \".opd\",\"aw\"";
67 $ret .= "\n.align 3";
68 $ret .= "\n$name:";
69 $ret .= "\n.quad .$name,.TOC.\@tocbase,0";
70 $ret .= "\n.previous";
71 $name = ".$name";
72 }
73 last;
74 };
75 }
76
77 $ret = ".globl $name" if (!$ret);
78 $$global = $name;
79 $ret;
80};
81my $text = sub {
82 my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
83 $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64(le|v2)/);
84 $ret;
85};
86my $p2align = sub {
87 my $ret = ($flavour =~ /aix64-as/) ? "" : ".p2align $line";
88 $ret;
89};
90my $machine = sub {
91 my $junk = shift;
92 my $arch = shift;
93 if ($flavour =~ /osx/)
94 { $arch =~ s/\"//g;
95 $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
96 }
97 ".machine $arch";
98};
99my $size = sub {
100 if ($flavour =~ /linux/)
101 { shift;
102 my $name = shift;
103 my $real = $GLOBALS{$name} ? \$GLOBALS{$name} : \$name;
104 my $ret = ".size $$real,.-$$real";
105 $name =~ s|^\.||;
106 if ($$real ne $name) {
107 $ret .= "\n.size $name,.-$$real";
108 }
109 $ret;
110 }
111 else
112 { ""; }
113};
114my $asciz = sub {
115 shift;
116 my $line = join(",",@_);
117 if ($line =~ /^"(.*)"$/)
118 { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
119 else
120 { ""; }
121};
122my $quad = sub {
123 shift;
124 my @ret;
125 my ($hi,$lo);
126 for (@_) {
127 if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
128 { $hi=$1?"0x$1":"0"; $lo="0x$2"; }
129 elsif (/^([0-9]+)$/o)
130 { $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl
131 else
132 { $hi=undef; $lo=$_; }
133
134 if (defined($hi))
135 { push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); }
136 else
137 { push(@ret,".quad $lo"); }
138 }
139 join("\n",@ret);
140};
141
142################################################################
143# vector register number hacking
144################################################################
145
146# It is convenient to be able to set a variable like:
147# my $foo = "v33";
148# and use this in different contexts where:
149# * a VSR (Vector-Scaler Register) number (i.e. "v33") is required
150# * a VR (Vector Register) number (i.e. "v1") is required
151# Map VSR numbering to VR number for certain vector instructions.
152
153# vs<N> -> v<N-32> if N > 32
154sub vsr2vr1 {
155 my $in = shift;
156 my ($prefix, $reg) = ($in =~ m/(\D*)(\d+)/);
157
158 my $n = int($reg);
159 if ($n >= 32) {
160 $n -= 32;
161 }
162
163 return "${prefix}${n}";
164}
165# As above for first $num register args, returns list
166sub _vsr2vr {
167 my $num = shift;
168 my @rest = @_;
169 my @subst = splice(@rest, 0, $num);
170
171 @subst = map { vsr2vr1($_); } @subst;
172
173 return (@subst, @rest);
174}
175# As above but 1st arg ($f) is extracted and reinserted after
176# processing so that it can be ignored by a code generation function
177# that consumes the result
178sub vsr2vr_args {
179 my $num = shift;
180 my $f = shift;
181
182 my @out = _vsr2vr($num, @_);
183
184 return ($f, @out);
185}
186# As above but 1st arg is mnemonic, return formatted instruction
187sub vsr2vr {
188 my $mnemonic = shift;
189 my $num = shift;
190 my $f = shift;
191
192 my @out = _vsr2vr($num, @_);
193
194 " ${mnemonic}${f} " . join(",", @out);
195}
196
197# ISA 2.03
198my $vsel = sub { vsr2vr("vsel", 4, @_); };
199my $vsl = sub { vsr2vr("vsl", 3, @_); };
200my $vspltisb = sub { vsr2vr("vspltisb", 1, @_); };
201my $vspltisw = sub { vsr2vr("vspltisw", 1, @_); };
202my $vsr = sub { vsr2vr("vsr", 3, @_); };
203my $vsro = sub { vsr2vr("vsro", 3, @_); };
204
205# ISA 3.0
206my $lxsd = sub { vsr2vr("lxsd", 1, @_); };
207
208################################################################
209# simplified mnemonics not handled by at least one assembler
210################################################################
211my $cmplw = sub {
212 my $f = shift;
213 my $cr = 0; $cr = shift if ($#_>1);
214 # Some out-of-date 32-bit GNU assembler just can't handle cmplw...
215 ($flavour =~ /linux.*32/) ?
216 " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 :
217 " cmplw ".join(',',$cr,@_);
218};
219my $bdnz = sub {
220 my $f = shift;
221 my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint
222 " bc $bo,0,".shift;
223} if ($flavour!~/linux/);
224my $bltlr = sub {
225 my $f = shift;
226 my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
227 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
228 " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 :
229 " bclr $bo,0";
230};
231my $bnelr = sub {
232 my $f = shift;
233 my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
234 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
235 " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 :
236 " bclr $bo,2";
237};
238my $beqlr = sub {
239 my $f = shift;
240 my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
241 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
242 " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 :
243 " bclr $bo,2";
244};
245# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
246# arguments is 64, with "operand out of range" error.
247my $extrdi = sub {
248 my ($f,$ra,$rs,$n,$b) = @_;
249 $b = ($b+$n)&63; $n = 64-$n;
250 " rldicl $ra,$rs,$b,$n";
251};
252my $vmr = sub {
253 my ($f,$vx,$vy) = @_;
254 " vor $vx,$vy,$vy";
255};
256
257# Some ABIs specify vrsave, special-purpose register #256, as reserved
258# for system use.
259my $no_vrsave = ($flavour =~ /aix|linux64(le|v2)/);
260my $mtspr = sub {
261 my ($f,$idx,$ra) = @_;
262 if ($idx == 256 && $no_vrsave) {
263 " or $ra,$ra,$ra";
264 } else {
265 " mtspr $idx,$ra";
266 }
267};
268my $mfspr = sub {
269 my ($f,$rd,$idx) = @_;
270 if ($idx == 256 && $no_vrsave) {
271 " li $rd,-1";
272 } else {
273 " mfspr $rd,$idx";
274 }
275};
276
277# PowerISA 2.06 stuff
278sub vsxmem_op {
279 my ($f, $vrt, $ra, $rb, $op) = @_;
280 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1);
281}
282# made-up unaligned memory reference AltiVec/VMX instructions
283my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x
284my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x
285my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx
286my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx
287my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x
288my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x
289my $lvx_splt = sub { vsxmem_op(@_, 332); }; # lxvdsx
290# VSX instruction[s] masqueraded as made-up AltiVec/VMX
291my $vpermdi = sub { # xxpermdi
292 my ($f, $vrt, $vra, $vrb, $dm) = @_;
293 $dm = oct($dm) if ($dm =~ /^0/);
294 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($dm<<8)|(10<<3)|7;
295};
296my $vxxlor = sub { # xxlor
297 my ($f, $vrt, $vra, $vrb) = @_;
298 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|(146<<3)|6;
299};
300my $vxxlorc = sub { # xxlor
301 my ($f, $vrt, $vra, $vrb) = @_;
302 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|(146<<3)|1;
303};
304
305# PowerISA 2.07 stuff
306sub vcrypto_op {
307 my ($f, $vrt, $vra, $vrb, $op) = vsr2vr_args(3, @_);
308 " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
309}
310sub vfour {
311 my ($f, $vrt, $vra, $vrb, $vrc, $op) = @_;
312 " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($vrc<<6)|$op;
313};
314sub vfour_vsr {
315 my ($f, $vrt, $vra, $vrb, $vrc, $op) = vsr2vr_args(4, @_);
316 " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($vrc<<6)|$op;
317};
318
319my $vcipher = sub { vcrypto_op(@_, 1288); };
320my $vcipherlast = sub { vcrypto_op(@_, 1289); };
321my $vncipher = sub { vcrypto_op(@_, 1352); };
322my $vncipherlast= sub { vcrypto_op(@_, 1353); };
323my $vsbox = sub { vcrypto_op(@_, 0, 1480); };
324my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); };
325my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); };
326my $vpmsumb = sub { vcrypto_op(@_, 1032); };
327my $vpmsumd = sub { vcrypto_op(@_, 1224); };
328my $vpmsubh = sub { vcrypto_op(@_, 1096); };
329my $vpmsumw = sub { vcrypto_op(@_, 1160); };
330# These are not really crypto, but vcrypto_op template works
331my $vaddudm = sub { vcrypto_op(@_, 192); };
332my $vadduqm = sub { vcrypto_op(@_, 256); };
333my $vmuleuw = sub { vcrypto_op(@_, 648); };
334my $vmulouw = sub { vcrypto_op(@_, 136); };
335my $vrld = sub { vcrypto_op(@_, 196); };
336my $vsld = sub { vcrypto_op(@_, 1476); };
337my $vsrd = sub { vcrypto_op(@_, 1732); };
338my $vsubudm = sub { vcrypto_op(@_, 1216); };
339my $vaddcuq = sub { vcrypto_op(@_, 320); };
340my $vaddeuqm = sub { vfour_vsr(@_,60); };
341my $vaddecuq = sub { vfour_vsr(@_,61); };
342my $vmrgew = sub { vfour_vsr(@_,0,1932); };
343my $vmrgow = sub { vfour_vsr(@_,0,1676); };
344
345my $mtsle = sub {
346 my ($f, $arg) = @_;
347 " .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
348};
349
350# VSX instructions masqueraded as AltiVec/VMX
351my $mtvrd = sub {
352 my ($f, $vrt, $ra) = @_;
353 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(179<<1)|1;
354};
355my $mtvrwz = sub {
356 my ($f, $vrt, $ra) = @_;
357 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(243<<1)|1;
358};
359my $lvwzx_u = sub { vsxmem_op(@_, 12); }; # lxsiwzx
360my $stvwx_u = sub { vsxmem_op(@_, 140); }; # stxsiwx
361
362# PowerISA 3.0 stuff
363my $maddhdu = sub { vfour(@_,49); };
364my $maddld = sub { vfour(@_,51); };
365my $darn = sub {
366 my ($f, $rt, $l) = @_;
367 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($l<<16)|(755<<1);
368};
369my $iseleq = sub {
370 my ($f, $rt, $ra, $rb) = @_;
371 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|(2<<6)|30;
372};
373# VSX instruction[s] masqueraded as made-up AltiVec/VMX
374my $vspltib = sub { # xxspltib
375 my ($f, $vrt, $imm8) = @_;
376 $imm8 = oct($imm8) if ($imm8 =~ /^0/);
377 $imm8 &= 0xff;
378 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($imm8<<11)|(360<<1)|1;
379};
380
381# PowerISA 3.0B stuff
382my $addex = sub {
383 my ($f, $rt, $ra, $rb, $cy) = @_; # only cy==0 is specified in 3.0B
384 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($cy<<9)|(170<<1);
385};
386my $vmsumudm = sub { vfour_vsr(@_, 35); };
387
388# PowerISA 3.1 stuff
389my $brd = sub {
390 my ($f, $ra, $rs) = @_;
391 " .long ".sprintf "0x%X",(31<<26)|($rs<<21)|($ra<<16)|(187<<1);
392};
393my $vsrq = sub { vcrypto_op(@_, 517); };
394
395
396
397while($line=<>) {
398
399 $line =~ s|[#!;].*$||; # get rid of asm-style comments...
400 $line =~ s|/\*.*\*/||; # ... and C-style comments...
401 $line =~ s|^\s+||; # ... and skip whitespaces in beginning...
402 $line =~ s|\s+$||; # ... and at the end
403
404 {
405 $line =~ s|\.L(\w+)|L$1|g; # common denominator for Locallabel
406 $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels);
407 }
408
409 {
410 $line =~ s|(^[\.\w]+)\:\s*||;
411 my $label = $1;
412 if ($label) {
413 my $xlated = ($GLOBALS{$label} or $label);
414 print "$xlated:";
415 if ($flavour =~ /linux.*64(le|v2)/) {
416 if ($TYPES{$label} =~ /function/) {
417 printf "\n.localentry %s,0\n",$xlated;
418 }
419 }
420 }
421 }
422
423 {
424 $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||;
425 my $c = $1; $c = "\t" if ($c eq "");
426 my $mnemonic = $2;
427 my $f = $3;
428 my $opcode = eval("\$$mnemonic");
429 $line =~ s/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/);
430 if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(/,\s*/,$line)); }
431 elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
432 }
433
434 print $line if ($line);
435 print "\n";
436}
437
438close STDOUT or die "error closing STDOUT: $!";
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