1 files changed, 128 insertions, 13 deletions

diff --git a/src/lib/libcrypto/perlasm/x86unix.pl b/src/lib/libcrypto/perlasm/x86unix.pl
index 6ee4dd3245..9ceabf0705 100644
--- a/src/lib/libcrypto/perlasm/x86unix.pl
+++ b/src/lib/libcrypto/perlasm/x86unix.pl
@@ -1,14 +1,10 @@
-#!/usr/bin/perl
-
-# Because the bswapl instruction is not supported for old assembers
-# (it was a new instruction for the 486), I've added .byte xxxx code
-# to put it in.
-# eric 24-Apr-1998
-#
+#!/usr/local/bin/perl
 
 package x86unix;
 
 $label="L000";
+$const="";
+$constl=0;
 
 $align=($main'aout)?"4":"16";
 $under=($main'aout)?"_":"";
@@ -85,12 +81,17 @@ sub main'DWP
         local($addr,$reg1,$reg2,$idx)=@_;
 
         $ret="";
-        $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
+        $addr =~ s/(^|[+ \t])([A-Za-z_]+[A-Za-z0-9_]+)($|[+ \t])/$1$under$2$3/;
         $reg1="$regs{$reg1}" if defined($regs{$reg1});
         $reg2="$regs{$reg2}" if defined($regs{$reg2});
         $ret.=$addr if ($addr ne "") && ($addr ne 0);
         if ($reg2 ne "")
-                { $ret.="($reg1,$reg2,$idx)"; }
+                {
+                if($idx ne "")
+                    { $ret.="($reg1,$reg2,$idx)"; }
+                else
+                    { $ret.="($reg1,$reg2)"; }
+                }
         else
                 { $ret.="($reg1)" }
         return($ret);
@@ -101,6 +102,16 @@ sub main'BP
         return(&main'DWP(@_));
         }
 
+sub main'BC
+        {
+        return @_;
+        }
+
+sub main'DWC
+        {
+        return @_;
+        }
+
 #sub main'BP
 #       {
 #       local($addr,$reg1,$reg2,$idx)=@_;
@@ -153,12 +164,29 @@ sub main'dec	{ &out1("decl",@_); }
 sub main'inc    { &out1("incl",@_); }
 sub main'push   { &out1("pushl",@_); $stack+=4; }
 sub main'pop    { &out1("popl",@_); $stack-=4; }
-sub main'bswap  { &out1("bswapl",@_); }
+sub main'pushf  { &out0("pushf"); $stack+=4; }
+sub main'popf   { &out0("popf"); $stack-=4; }
 sub main'not    { &out1("notl",@_); }
 sub main'call   { &out1("call",$under.$_[0]); }
 sub main'ret    { &out0("ret"); }
 sub main'nop    { &out0("nop"); }
 
+# The bswapl instruction is new for the 486. Emulate if i386.
+sub main'bswap
+        {
+        if ($main'i386)
+                {
+                &main'comment("bswapl @_");
+                &main'exch(main'HB(@_),main'LB(@_));
+                &main'rotr(@_,16);
+                &main'exch(main'HB(@_),main'LB(@_));
+                }
+        else
+                {
+                &out1("bswapl",@_);
+                }
+        }
+
 sub out2
         {
         local($name,$p1,$p2)=@_;
@@ -268,6 +296,8 @@ EOF
         push(@out,$tmp);
         if ($main'cpp)
                 { $tmp=push(@out,"\tTYPE($func,\@function)\n"); }
+        elsif ($main'gaswin)
+                { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
         else    { $tmp=push(@out,"\t.type\t$func,\@function\n"); }
         push(@out,"$func:\n");
         $tmp=<<"EOF";
@@ -296,6 +326,8 @@ EOF
         push(@out,$tmp);
         if ($main'cpp)
                 { push(@out,"\tTYPE($func,\@function)\n"); }
+        elsif ($main'gaswin)
+                { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
         else    { push(@out,"\t.type    $func,\@function\n"); }
         push(@out,"$func:\n");
         $stack=4;
@@ -316,8 +348,11 @@ sub main'function_end
 .${func}_end:
 EOF
         push(@out,$tmp);
+
         if ($main'cpp)
                 { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
+        elsif ($main'gaswin)
+                { $tmp=push(@out,"\t.align 4\n"); }
         else    { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
         push(@out,".ident       \"$func\"\n");
         $stack=0;
@@ -344,10 +379,12 @@ sub main'function_end_B
 
         $func=$under.$func;
 
-        push(@out,".${func}_end:\n");
+        push(@out,".L_${func}_end:\n");
         if ($main'cpp)
-                { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
-        else    { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
+                { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
+        elsif ($main'gaswin)
+                { push(@out,"\t.align 4\n"); }
+        else    { push(@out,"\t.size\t$func,.L_${func}_end-$func\n"); }
         push(@out,".ident       \"desasm.pl\"\n");
         $stack=0;
         %label=();
@@ -421,9 +458,87 @@ sub main'set_label
 
 sub main'file_end
         {
+        if ($const ne "")
+                {
+                push(@out,".section .rodata\n");
+                push(@out,$const);
+                $const="";
+                }
         }
 
 sub main'data_word
         {
         push(@out,"\t.long $_[0]\n");
         }
+
+# debug output functions: puts, putx, printf
+
+sub main'puts
+        {
+        &pushvars();
+        &main'push('$Lstring' . ++$constl);
+        &main'call('puts');
+        $stack-=4;
+        &main'add("esp",4);
+        &popvars();
+
+        $const .= "Lstring$constl:\n\t.string \"@_[0]\"\n";
+        }
+
+sub main'putx
+        {
+        &pushvars();
+        &main'push($_[0]);
+        &main'push('$Lstring' . ++$constl);
+        &main'call('printf');
+        &main'add("esp",8);
+        $stack-=8;
+        &popvars();
+
+        $const .= "Lstring$constl:\n\t.string \"\%X\"\n";
+        }
+
+sub main'printf
+        {
+        $ostack = $stack;
+        &pushvars();
+        for ($i = @_ - 1; $i >= 0; $i--)
+                {
+                if ($i == 0) # change this to support %s format strings
+                        {
+                        &main'push('$Lstring' . ++$constl);
+                        $const .= "Lstring$constl:\n\t.string \"@_[$i]\"\n";
+                        }
+                else
+                        {
+                        if ($_[$i] =~ /([0-9]*)\(%esp\)/)
+                                {
+                                &main'push(($1 + $stack - $ostack) . '(%esp)');
+                                }
+                        else
+                                {
+                                &main'push($_[$i]);
+                                }
+                        }
+                }
+        &main'call('printf');
+        $stack-=4*@_;
+        &main'add("esp",4*@_);
+        &popvars();
+        }
+
+sub pushvars
+        {
+        &main'pushf();
+        &main'push("edx");
+        &main'push("ecx");
+        &main'push("eax");
+        }
+
+sub popvars
+        {
+        &main'pop("eax");
+        &main'pop("ecx");
+        &main'pop("edx");
+        &main'popf();
+        }