1 files changed, 159 insertions, 0 deletions

diff --git a/src/lib/libcrypto/perlasm/ppc-xlate.pl b/src/lib/libcrypto/perlasm/ppc-xlate.pl
new file mode 100755
index 0000000000..a3edd982b6
--- /dev/null
+++ b/src/lib/libcrypto/perlasm/ppc-xlate.pl
@@ -0,0 +1,159 @@
+#!/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 .= ".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 $size = sub {
+    if ($flavour =~ /linux.*32/)
+    {   shift;
+        ".size  " . join(",",@_);
+    }
+    else
+    {   "";     }
+};
+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;