Index: openssl/crypto/perlasm/ppc-xlate.pl |
=================================================================== |
--- openssl/crypto/perlasm/ppc-xlate.pl (revision 0) |
+++ openssl/crypto/perlasm/ppc-xlate.pl (revision 0) |
@@ -0,0 +1,152 @@ |
+#!/usr/bin/env perl |
+ |
+# PowerPC assembler distiller by <appro>. |
+ |
+my $flavour = shift; |
+my $output = shift; |
+open STDOUT,">$output" || die "can't open $output: $!"; |
+ |
+my %GLOBALS; |
+my $dotinlocallabels=($flavour=~/linux/)?1:0; |
+ |
+################################################################ |
+# directives which need special treatment on different platforms |
+################################################################ |
+my $globl = sub { |
+ my $junk = shift; |
+ my $name = shift; |
+ my $global = \$GLOBALS{$name}; |
+ my $ret; |
+ |
+ $name =~ s|^[\.\_]||; |
+ |
+ SWITCH: for ($flavour) { |
+ /aix/ && do { $name = ".$name"; |
+ last; |
+ }; |
+ /osx/ && do { $name = "_$name"; |
+ last; |
+ }; |
+ /linux.*32/ && do { $ret .= ".globl $name\n"; |
+ $ret .= ".type $name,\@function"; |
+ last; |
+ }; |
+ /linux.*64/ && do { $ret .= ".globl .$name\n"; |
+ $ret .= ".type .$name,\@function\n"; |
+ $ret .= ".section \".opd\",\"aw\"\n"; |
+ $ret .= ".globl $name\n"; |
+ $ret .= ".align 3\n"; |
+ $ret .= "$name:\n"; |
+ $ret .= ".quad .$name,.TOC.\@tocbase,0\n"; |
+ $ret .= ".size $name,24\n"; |
+ $ret .= ".previous\n"; |
+ |
+ $name = ".$name"; |
+ last; |
+ }; |
+ } |
+ |
+ $ret = ".globl $name" if (!$ret); |
+ $$global = $name; |
+ $ret; |
+}; |
+my $text = sub { |
+ ($flavour =~ /aix/) ? ".csect" : ".text"; |
+}; |
+my $machine = sub { |
+ my $junk = shift; |
+ my $arch = shift; |
+ if ($flavour =~ /osx/) |
+ { $arch =~ s/\"//g; |
+ $arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any"); |
+ } |
+ ".machine $arch"; |
+}; |
+my $asciz = sub { |
+ shift; |
+ my $line = join(",",@_); |
+ if ($line =~ /^"(.*)"$/) |
+ { ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; } |
+ else |
+ { ""; } |
+}; |
+ |
+################################################################ |
+# simplified mnemonics not handled by at least one assembler |
+################################################################ |
+my $cmplw = sub { |
+ my $f = shift; |
+ my $cr = 0; $cr = shift if ($#_>1); |
+ # Some out-of-date 32-bit GNU assembler just can't handle cmplw... |
+ ($flavour =~ /linux.*32/) ? |
+ " .long ".sprintf "0x%x",31<<26|$cr<<23|$_[0]<<16|$_[1]<<11|64 : |
+ " cmplw ".join(',',$cr,@_); |
+}; |
+my $bdnz = sub { |
+ my $f = shift; |
+ my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint |
+ " bc $bo,0,".shift; |
+} if ($flavour!~/linux/); |
+my $bltlr = sub { |
+ my $f = shift; |
+ my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint |
+ ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints |
+ " .long ".sprintf "0x%x",19<<26|$bo<<21|16<<1 : |
+ " bclr $bo,0"; |
+}; |
+my $bnelr = sub { |
+ my $f = shift; |
+ my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint |
+ ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints |
+ " .long ".sprintf "0x%x",19<<26|$bo<<21|2<<16|16<<1 : |
+ " bclr $bo,2"; |
+}; |
+my $beqlr = sub { |
+ my $f = shift; |
+ my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint |
+ ($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints |
+ " .long ".sprintf "0x%X",19<<26|$bo<<21|2<<16|16<<1 : |
+ " bclr $bo,2"; |
+}; |
+# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two |
+# arguments is 64, with "operand out of range" error. |
+my $extrdi = sub { |
+ my ($f,$ra,$rs,$n,$b) = @_; |
+ $b = ($b+$n)&63; $n = 64-$n; |
+ " rldicl $ra,$rs,$b,$n"; |
+}; |
+ |
+while($line=<>) { |
+ |
+ $line =~ s|[#!;].*$||; # get rid of asm-style comments... |
+ $line =~ s|/\*.*\*/||; # ... and C-style comments... |
+ $line =~ s|^\s+||; # ... and skip white spaces in beginning... |
+ $line =~ s|\s+$||; # ... and at the end |
+ |
+ { |
+ $line =~ s|\b\.L(\w+)|L$1|g; # common denominator for Locallabel |
+ $line =~ s|\bL(\w+)|\.L$1|g if ($dotinlocallabels); |
+ } |
+ |
+ { |
+ $line =~ s|(^[\.\w]+)\:\s*||; |
+ my $label = $1; |
+ printf "%s:",($GLOBALS{$label} or $label) if ($label); |
+ } |
+ |
+ { |
+ $line =~ s|^\s*(\.?)(\w+)([\.\+\-]?)\s*||; |
+ my $c = $1; $c = "\t" if ($c eq ""); |
+ my $mnemonic = $2; |
+ my $f = $3; |
+ my $opcode = eval("\$$mnemonic"); |
+ $line =~ s|\bc?[rf]([0-9]+)\b|$1|g if ($c ne "." and $flavour !~ /osx/); |
+ if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); } |
+ elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; } |
+ } |
+ |
+ print $line if ($line); |
+ print "\n"; |
+} |
+ |
+close STDOUT; |