1#! /usr/bin/env perl 2# Copyright 2006-2020 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 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 ($$type =~ /function/) { 45 $name = ".$name"; 46 } 47 last; 48 }; 49 /osx/ && do { $name = "_$name"; 50 last; 51 }; 52 /linux.*(32|64le)/ 53 && do { $ret .= ".globl $name"; 54 if (!$$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 $$global = $name; 79 $ret; 80}; 81my $text = sub { 82 my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text"; 83 $ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/); 84 $ret; 85}; 86my $machine = sub { 87 my $junk = shift; 88 my $arch = shift; 89 if ($flavour =~ /osx/) 90 { $arch =~ s/\"//g; 91 $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any"); 92 } 93 ".machine $arch"; 94}; 95my $size = sub { 96 if ($flavour =~ /linux/) 97 { shift; 98 my $name = shift; 99 my $real = $GLOBALS{$name} ? \$GLOBALS{$name} : \$name; 100 my $ret = ".size $$real,.-$$real"; 101 $name =~ s|^\.||; 102 if ($$real ne $name) { 103 $ret .= "\n.size $name,.-$$real"; 104 } 105 $ret; 106 } 107 else 108 { ""; } 109}; 110my $asciz = sub { 111 shift; 112 my $line = join(",",@_); 113 if ($line =~ /^"(.*)"$/) 114 { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; } 115 else 116 { ""; } 117}; 118my $quad = sub { 119 shift; 120 my @ret; 121 my ($hi,$lo); 122 for (@_) { 123 if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io) 124 { $hi=$1?"0x$1":"0"; $lo="0x$2"; } 125 elsif (/^([0-9]+)$/o) 126 { $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl 127 else 128 { $hi=undef; $lo=$_; } 129 130 if (defined($hi)) 131 { push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); } 132 else 133 { push(@ret,".quad $lo"); } 134 } 135 join("\n",@ret); 136}; 137 138################################################################ 139# simplified mnemonics not handled by at least one assembler 140################################################################ 141my $cmplw = sub { 142 my $f = shift; 143 my $cr = 0; $cr = shift if ($#_>1); 144 # Some out-of-date 32-bit GNU assembler just can't handle cmplw... 145 ($flavour =~ /linux.*32/) ? 146 " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 : 147 " cmplw ".join(',',$cr,@_); 148}; 149my $bdnz = sub { 150 my $f = shift; 151 my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint 152 " bc $bo,0,".shift; 153} if ($flavour!~/linux/); 154my $bltlr = sub { 155 my $f = shift; 156 my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint 157 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints 158 " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 : 159 " bclr $bo,0"; 160}; 161my $bnelr = sub { 162 my $f = shift; 163 my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint 164 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints 165 " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 : 166 " bclr $bo,2"; 167}; 168my $beqlr = sub { 169 my $f = shift; 170 my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint 171 ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints 172 " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 : 173 " bclr $bo,2"; 174}; 175# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two 176# arguments is 64, with "operand out of range" error. 177my $extrdi = sub { 178 my ($f,$ra,$rs,$n,$b) = @_; 179 $b = ($b+$n)&63; $n = 64-$n; 180 " rldicl $ra,$rs,$b,$n"; 181}; 182my $vmr = sub { 183 my ($f,$vx,$vy) = @_; 184 " vor $vx,$vy,$vy"; 185}; 186 187# Some ABIs specify vrsave, special-purpose register #256, as reserved 188# for system use. 189my $no_vrsave = ($flavour =~ /aix|linux64le/); 190my $mtspr = sub { 191 my ($f,$idx,$ra) = @_; 192 if ($idx == 256 && $no_vrsave) { 193 " or $ra,$ra,$ra"; 194 } else { 195 " mtspr $idx,$ra"; 196 } 197}; 198my $mfspr = sub { 199 my ($f,$rd,$idx) = @_; 200 if ($idx == 256 && $no_vrsave) { 201 " li $rd,-1"; 202 } else { 203 " mfspr $rd,$idx"; 204 } 205}; 206 207# PowerISA 2.06 stuff 208sub vsxmem_op { 209 my ($f, $vrt, $ra, $rb, $op) = @_; 210 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1); 211} 212# made-up unaligned memory reference AltiVec/VMX instructions 213my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x 214my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x 215my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx 216my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx 217my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x 218my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x 219my $lvx_splt = sub { vsxmem_op(@_, 332); }; # lxvdsx 220# VSX instruction[s] masqueraded as made-up AltiVec/VMX 221my $vpermdi = sub { # xxpermdi 222 my ($f, $vrt, $vra, $vrb, $dm) = @_; 223 $dm = oct($dm) if ($dm =~ /^0/); 224 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($dm<<8)|(10<<3)|7; 225}; 226 227# PowerISA 2.07 stuff 228sub vcrypto_op { 229 my ($f, $vrt, $vra, $vrb, $op) = @_; 230 " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op; 231} 232sub vfour { 233 my ($f, $vrt, $vra, $vrb, $vrc, $op) = @_; 234 " .long ".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|($vrc<<6)|$op; 235}; 236my $vcipher = sub { vcrypto_op(@_, 1288); }; 237my $vcipherlast = sub { vcrypto_op(@_, 1289); }; 238my $vncipher = sub { vcrypto_op(@_, 1352); }; 239my $vncipherlast= sub { vcrypto_op(@_, 1353); }; 240my $vsbox = sub { vcrypto_op(@_, 0, 1480); }; 241my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); }; 242my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); }; 243my $vpmsumb = sub { vcrypto_op(@_, 1032); }; 244my $vpmsumd = sub { vcrypto_op(@_, 1224); }; 245my $vpmsubh = sub { vcrypto_op(@_, 1096); }; 246my $vpmsumw = sub { vcrypto_op(@_, 1160); }; 247# These are not really crypto, but vcrypto_op template works 248my $vaddudm = sub { vcrypto_op(@_, 192); }; 249my $vadduqm = sub { vcrypto_op(@_, 256); }; 250my $vmuleuw = sub { vcrypto_op(@_, 648); }; 251my $vmulouw = sub { vcrypto_op(@_, 136); }; 252my $vrld = sub { vcrypto_op(@_, 196); }; 253my $vsld = sub { vcrypto_op(@_, 1476); }; 254my $vsrd = sub { vcrypto_op(@_, 1732); }; 255my $vsubudm = sub { vcrypto_op(@_, 1216); }; 256my $vaddcuq = sub { vcrypto_op(@_, 320); }; 257my $vaddeuqm = sub { vfour(@_,60); }; 258my $vaddecuq = sub { vfour(@_,61); }; 259my $vmrgew = sub { vfour(@_,0,1932); }; 260my $vmrgow = sub { vfour(@_,0,1676); }; 261 262my $mtsle = sub { 263 my ($f, $arg) = @_; 264 " .long ".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2); 265}; 266 267# VSX instructions masqueraded as AltiVec/VMX 268my $mtvrd = sub { 269 my ($f, $vrt, $ra) = @_; 270 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(179<<1)|1; 271}; 272my $mtvrwz = sub { 273 my ($f, $vrt, $ra) = @_; 274 " .long ".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|(243<<1)|1; 275}; 276 277# PowerISA 3.0 stuff 278my $maddhdu = sub { vfour(@_,49); }; 279my $maddld = sub { vfour(@_,51); }; 280my $darn = sub { 281 my ($f, $rt, $l) = @_; 282 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($l<<16)|(755<<1); 283}; 284my $iseleq = sub { 285 my ($f, $rt, $ra, $rb) = @_; 286 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|(2<<6)|30; 287}; 288# VSX instruction[s] masqueraded as made-up AltiVec/VMX 289my $vspltib = sub { # xxspltib 290 my ($f, $vrt, $imm8) = @_; 291 $imm8 = oct($imm8) if ($imm8 =~ /^0/); 292 $imm8 &= 0xff; 293 " .long ".sprintf "0x%X",(60<<26)|($vrt<<21)|($imm8<<11)|(360<<1)|1; 294}; 295 296# PowerISA 3.0B stuff 297my $addex = sub { 298 my ($f, $rt, $ra, $rb, $cy) = @_; # only cy==0 is specified in 3.0B 299 " .long ".sprintf "0x%X",(31<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($cy<<9)|(170<<1); 300}; 301my $vmsumudm = sub { vfour(@_,35); }; 302 303while($line=<>) { 304 305 $line =~ s|[#!;].*$||; # get rid of asm-style comments... 306 $line =~ s|/\*.*\*/||; # ... and C-style comments... 307 $line =~ s|^\s+||; # ... and skip white spaces in beginning... 308 $line =~ s|\s+$||; # ... and at the end 309 310 { 311 $line =~ s|\.L(\w+)|L$1|g; # common denominator for Locallabel 312 $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels); 313 } 314 315 { 316 $line =~ s|(^[\.\w]+)\:\s*||; 317 my $label = $1; 318 if ($label) { 319 my $xlated = ($GLOBALS{$label} or $label); 320 print "$xlated:"; 321 if ($flavour =~ /linux.*64le/) { 322 if ($TYPES{$label} =~ /function/) { 323 printf "\n.localentry %s,0\n",$xlated; 324 } 325 } 326 } 327 } 328 329 { 330 $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||; 331 my $c = $1; $c = "\t" if ($c eq ""); 332 my $mnemonic = $2; 333 my $f = $3; 334 my $opcode = eval("\$$mnemonic"); 335 $line =~ s/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/); 336 if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(/,\s*/,$line)); } 337 elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; } 338 } 339 340 print $line if ($line); 341 print "\n"; 342} 343 344close STDOUT or die "error closing STDOUT: $!"; 345