#!/usr/local/bin/perl
-package x86ms;
+package x86unix; # GAS actually...
$label="L000";
+$const="";
+$constl=0;
$align=($main'aout)?"4":"16";
-$under=($main'aout)?"_":"";
-$com_start=($main'sol)?"/":"#";
+$under=($main'aout or $main'coff)?"_":"";
+$dot=($main'aout)?"":".";
+$com_start="#" if ($main'aout or $main'coff);
+
+sub main'asm_init_output { @out=(); }
+sub main'asm_get_output { return(@out); }
+sub main'get_labels { return(@labels); }
+sub main'external_label { push(@labels,@_); }
if ($main'cpp)
{
'edi', '%edi',
'ebp', '%ebp',
'esp', '%esp',
+
+ 'mm0', '%mm0',
+ 'mm1', '%mm1',
+ 'mm2', '%mm2',
+ 'mm3', '%mm3',
+ 'mm4', '%mm4',
+ 'mm5', '%mm5',
+ 'mm6', '%mm6',
+ 'mm7', '%mm7',
+
+ 'xmm0', '%xmm0',
+ 'xmm1', '%xmm1',
+ 'xmm2', '%xmm2',
+ 'xmm3', '%xmm3',
+ 'xmm4', '%xmm4',
+ 'xmm5', '%xmm5',
+ 'xmm6', '%xmm6',
+ 'xmm7', '%xmm7',
+ );
+
+%reg_val=(
+ 'eax', 0x00,
+ 'ebx', 0x03,
+ 'ecx', 0x01,
+ 'edx', 0x02,
+ 'esi', 0x06,
+ 'edi', 0x07,
+ 'ebp', 0x05,
+ 'esp', 0x04,
);
sub main'LB
{
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)";
- }
- else
- {
- $ret.="($reg1)"
- }
+ if($idx ne "" && $idx != 0)
+ { $ret.="($reg1,$reg2,$idx)"; }
+ else
+ { $ret.="($reg1,$reg2)"; }
+ }
+ elsif ($reg1 ne "")
+ { $ret.="($reg1)" }
return($ret);
}
-sub main'BP
+sub main'QWP
{
- local($addr,$reg1,$reg2,$idx)=@_;
-
+ return(&main'DWP(@_));
+ }
- $ret="";
+sub main'BP
+ {
+ return(&main'DWP(@_));
+ }
- $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
+sub main'BC
+ {
+ return @_;
+ }
- $reg1="$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)";
- }
- else
- {
- $ret.="($reg1)"
- }
- return($ret);
+sub main'DWC
+ {
+ return @_;
}
+#sub main'BP
+# {
+# local($addr,$reg1,$reg2,$idx)=@_;
+#
+# $ret="";
+#
+# $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \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)"; }
+# else
+# { $ret.="($reg1)" }
+# return($ret);
+# }
+
sub main'mov { &out2("movl",@_); }
sub main'movb { &out2("movb",@_); }
sub main'and { &out2("andl",@_); }
sub main'shl { &out2("sall",@_); }
sub main'shr { &out2("shrl",@_); }
sub main'xor { &out2("xorl",@_); }
-sub main'add { &out2("addl",@_); }
+sub main'xorb { &out2("xorb",@_); }
+sub main'add { &out2($_[0]=~/%[a-d][lh]/?"addb":"addl",@_); }
+sub main'adc { &out2("adcl",@_); }
sub main'sub { &out2("subl",@_); }
+sub main'sbb { &out2("sbbl",@_); }
sub main'rotl { &out2("roll",@_); }
sub main'rotr { &out2("rorl",@_); }
-sub main'exch { &out2("xchg",@_); }
+sub main'exch { &out2($_[0]=~/%[a-d][lh]/?"xchgb":"xchgl",@_); }
sub main'cmp { &out2("cmpl",@_); }
+sub main'lea { &out2("leal",@_); }
+sub main'mul { &out1("mull",@_); }
+sub main'div { &out1("divl",@_); }
sub main'jmp { &out1("jmp",@_); }
+sub main'jmp_ptr { &out1p("jmp",@_); }
sub main'je { &out1("je",@_); }
+sub main'jle { &out1("jle",@_); }
sub main'jne { &out1("jne",@_); }
sub main'jnz { &out1("jnz",@_); }
sub main'jz { &out1("jz",@_); }
+sub main'jge { &out1("jge",@_); }
+sub main'jl { &out1("jl",@_); }
+sub main'ja { &out1("ja",@_); }
+sub main'jae { &out1("jae",@_); }
+sub main'jb { &out1("jb",@_); }
+sub main'jbe { &out1("jbe",@_); }
+sub main'jc { &out1("jc",@_); }
+sub main'jnc { &out1("jnc",@_); }
+sub main'jno { &out1("jno",@_); }
sub main'dec { &out1("decl",@_); }
-sub main'push { &out1("pushl",@_); }
-sub main'call { &out1("call",$under.$_[0]); }
-
+sub main'inc { &out1($_[0]=~/%[a-d][hl]/?"incb":"incl",@_); }
+sub main'push { &out1("pushl",@_); $stack+=4; }
+sub main'pop { &out1("popl",@_); $stack-=4; }
+sub main'pushf { &out0("pushfl"); $stack+=4; }
+sub main'popf { &out0("popfl"); $stack-=4; }
+sub main'not { &out1("notl",@_); }
+sub main'call { my $pre=$under;
+ foreach $i (%label)
+ { if ($label{$i} eq $_[0]) { $pre=''; last; } }
+ &out1("call",$pre.$_[0]);
+ }
+sub main'ret { &out0("ret"); }
+sub main'nop { &out0("nop"); }
+sub main'test { &out2("testl",@_); }
+sub main'bt { &out2("btl",@_); }
+sub main'leave { &out0("leave"); }
+sub main'cpuid { &out0(".byte\t0x0f,0xa2"); }
+sub main'rdtsc { &out0(".byte\t0x0f,0x31"); }
+sub main'halt { &out0("hlt"); }
+sub main'movz { &out2("movzbl",@_); }
+sub main'neg { &out1("negl",@_); }
+
+# SSE2
+sub main'emms { &out0("emms"); }
+sub main'movd { &out2("movd",@_); }
+sub main'movq { &out2("movq",@_); }
+sub main'movdqu { &out2("movdqu",@_); }
+sub main'movdqa { &out2("movdqa",@_); }
+sub main'movdq2q{ &out2("movdq2q",@_); }
+sub main'movq2dq{ &out2("movq2dq",@_); }
+sub main'paddq { &out2("paddq",@_); }
+sub main'pmuludq{ &out2("pmuludq",@_); }
+sub main'psrlq { &out2("psrlq",@_); }
+sub main'psllq { &out2("psllq",@_); }
+sub main'pxor { &out2("pxor",@_); }
+sub main'por { &out2("por",@_); }
+sub main'pand { &out2("pand",@_); }
+
+# The bswapl instruction is new for the 486. Emulate if i386.
+sub main'bswap
+ {
+ if ($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,$p2)=@_;
local($l,$ll,$t);
+ local(%special)=( "roll",0xD1C0,"rorl",0xD1C8,
+ "rcll",0xD1D0,"rcrl",0xD1D8,
+ "shll",0xD1E0,"shrl",0xD1E8,
+ "sarl",0xD1F8);
+
+ if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
- print "\t$name\t";
+ push(@out,"\t$name\t");
$t=&conv($p2).",";
$l=length($t);
- print $t;
+ push(@out,$t);
$ll=4-($l+9)/8;
- print "\t" x $ll;
- print &conv($p1);
- print "\n";
+ $tmp1=sprintf("\t" x $ll);
+ push(@out,$tmp1);
+ push(@out,&conv($p1)."\n");
}
sub out1
{
local($name,$p1)=@_;
local($l,$t);
+ local(%special)=("bswapl",0x0FC8);
+
+ if ((defined($special{$name})) && defined($regs{$p1}))
+ {
+ $op=$special{$name}|$reg_val{$p1};
+ $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
+ $tmp2=sprintf(".byte %d\t",$op &0xff);
+ push(@out,$tmp1);
+ push(@out,$tmp2);
+
+ $p2=&conv($p2);
+ $p1=&conv($p1);
+ &main'comment("$name $p2 $p1");
+ return;
+ }
- print "\t$name\t";
- print &conv($p1);
- print "\n";
+ push(@out,"\t$name\t".&conv($p1)."\n");
+ }
+
+sub out1p
+ {
+ local($name,$p1)=@_;
+ local($l,$t);
+
+ push(@out,"\t$name\t*".&conv($p1)."\n");
+ }
+
+sub out0
+ {
+ push(@out,"\t$_[0]\n");
}
sub conv
$p=$regs{$p} if (defined($regs{$p}));
- $p =~ s/^([0-9A-Fa-f]+)$/\$$1/;
+ $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/;
$p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/;
return $p;
}
{
local($file)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.file "$file.s"
- .version "01.01"
-gcc2_compiled.:
EOF
+ push(@out,$tmp);
}
sub main'function_begin
{
- local($func,$num)=@_;
-
- $params=$num*4;
+ local($func)=@_;
+ &main'external_label($func);
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
.text
- .align $align
-.globl $func
+.globl $func
EOF
+ push(@out,$tmp);
if ($main'cpp)
- { printf("\tTYPE($func,\@function)\n"); }
- else { printf("\t.type $func,\@function\n"); }
- print <<"EOF";
-$func:
+ { $tmp=push(@out,"TYPE($func,\@function)\n"); }
+ elsif ($main'coff)
+ { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
+ elsif ($main'aout and !$main'pic)
+ { }
+ else { $tmp=push(@out,".type\t$func,\@function\n"); }
+ push(@out,".align\t$align\n");
+ push(@out,"$func:\n");
+ $tmp=<<"EOF";
pushl %ebp
pushl %ebx
pushl %esi
pushl %edi
EOF
+ push(@out,$tmp);
$stack=20;
}
+sub main'function_begin_B
+ {
+ local($func,$extra)=@_;
+
+ &main'external_label($func);
+ $func=$under.$func;
+
+ local($tmp)=<<"EOF";
+.text
+.globl $func
+EOF
+ push(@out,$tmp);
+ if ($main'cpp)
+ { push(@out,"TYPE($func,\@function)\n"); }
+ elsif ($main'coff)
+ { $tmp=push(@out,".def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
+ elsif ($main'aout and !$main'pic)
+ { }
+ else { push(@out,".type $func,\@function\n"); }
+ push(@out,".align\t$align\n");
+ push(@out,"$func:\n");
+ $stack=4;
+ }
+
sub main'function_end
{
local($func)=@_;
$func=$under.$func;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
-.${func}_end:
+${dot}L_${func}_end:
EOF
+ push(@out,$tmp);
+
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
+ elsif ($main'coff or $main'aout)
+ { }
+ else { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
+ push(@out,".ident \"$func\"\n");
$stack=0;
%label=();
}
{
local($func)=@_;
- print <<"EOF";
+ local($tmp)=<<"EOF";
popl %edi
popl %esi
popl %ebx
popl %ebp
ret
EOF
+ push(@out,$tmp);
}
sub main'function_end_B
$func=$under.$func;
- print <<"EOF";
-.${func}_end:
-EOF
+ push(@out,"${dot}L_${func}_end:\n");
if ($main'cpp)
- { printf("\tSIZE($func,.${func}_end-$func)\n"); }
- else { printf("\t.size\t$func,.${func}_end-$func\n"); }
- print ".ident \"desasm.pl\"\n";
+ { push(@out,"SIZE($func,${dot}L_${func}_end-$func)\n"); }
+ elsif ($main'coff or $main'aout)
+ { }
+ else { push(@out,".size\t$func,${dot}L_${func}_end-$func\n"); }
+ push(@out,".ident \"$func\"\n");
$stack=0;
%label=();
}
return(&main'DWP($stack+$num*4,"esp","",0));
}
-sub main'wtmp_b
+sub main'stack_push
{
- local($num,$b)=@_;
-
- return(&main'BP(-(($num+1)*4)+$b,"esp","",0));
+ local($num)=@_;
+ $stack+=$num*4;
+ &main'sub("esp",$num*4);
}
-sub main'wtmp
+sub main'stack_pop
{
local($num)=@_;
+ $stack-=$num*4;
+ &main'add("esp",$num*4);
+ }
- return(&main'DWP(-($num+1)*4,"esp","",0));
+sub main'swtmp
+ {
+ return(&main'DWP($_[0]*4,"esp","",0));
}
+# Should use swtmp, which is above esp. Linix can trash the stack above esp
+#sub main'wtmp
+# {
+# local($num)=@_;
+#
+# return(&main'DWP(-($num+1)*4,"esp","",0));
+# }
+
sub main'comment
{
+ if (!defined($com_start) or $main'elf)
+ { # Regarding $main'elf above...
+ # GNU and SVR4 as'es use different comment delimiters,
+ push(@out,"\n"); # so we just skip ELF comments...
+ return;
+ }
foreach (@_)
{
if (/^\s*$/)
- { print "\n"; }
+ { push(@out,"\n"); }
else
- { print "\t$com_start $_ $com_end\n"; }
+ { push(@out,"\t$com_start $_ $com_end\n"); }
}
}
+sub main'public_label
+ {
+ $label{$_[0]}="${under}${_[0]}" if (!defined($label{$_[0]}));
+ push(@out,".globl\t$label{$_[0]}\n");
+ }
+
sub main'label
{
if (!defined($label{$_[0]}))
{
- $label{$_[0]}=".${label}${_[0]}";
+ $label{$_[0]}="${dot}${label}${_[0]}";
$label++;
}
return($label{$_[0]});
{
if (!defined($label{$_[0]}))
{
- $label{$_[0]}=".${label}${_[0]}";
+ $label{$_[0]}="${dot}${label}${_[0]}";
$label++;
}
- print ".align $align\n";
- print "$label{$_[0]}:\n";
+ if ($_[1]!=0)
+ {
+ if ($_[1]>1) { main'align($_[1]); }
+ else { push(@out,".align $align\n"); }
+ }
+ push(@out,"$label{$_[0]}:\n");
}
sub main'file_end
{
+ # try to detect if SSE2 or MMX extensions were used on ELF platform...
+ if ($main'elf && grep {/%[x]*mm[0-7]/i} @out) {
+ local($tmp);
+
+ push (@out,"\n.comm\t${under}OPENSSL_ia32cap_P,4,4\n");
+
+ push (@out,".section\t.init\n");
+ # One can argue that it's wasteful to craft every
+ # SSE/MMX module with this snippet... Well, it's 72
+ # bytes long and for the moment we have two modules.
+ # Let's argue when we have 7 modules or so...
+ #
+ # $1<<10 sets a reserved bit to signal that variable
+ # was initialized already...
+ &main'picmeup("edx","OPENSSL_ia32cap_P");
+ $tmp=<<___;
+ cmpl \$0,(%edx)
+ jne 1f
+ movl \$1<<10,(%edx)
+ pushf
+ popl %eax
+ movl %eax,%ecx
+ xorl \$1<<21,%eax
+ pushl %eax
+ popf
+ pushf
+ popl %eax
+ xorl %ecx,%eax
+ btl \$21,%eax
+ jnc 1f
+ pushl %edi
+ pushl %ebx
+ movl %edx,%edi
+ movl \$1,%eax
+ .byte 0x0f,0xa2
+ orl \$1<<10,%edx
+ movl %edx,0(%edi)
+ popl %ebx
+ popl %edi
+ 1:
+___
+ push (@out,$tmp);
+ }
+
+ if ($const ne "")
+ {
+ push(@out,".section .rodata\n");
+ push(@out,$const);
+ $const="";
+ }
+ }
+
+sub main'data_word
+ {
+ push(@out,"\t.long\t".join(',',@_)."\n");
+ }
+
+sub main'align
+ {
+ my $val=$_[0],$p2,$i;
+ if ($main'aout) {
+ for ($p2=0;$val!=0;$val>>=1) { $p2++; }
+ $val=$p2-1;
+ $val.=",0x90";
+ }
+ push(@out,".align\t$val\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');
+ $stack-=4*@_;
+ &main'add("esp",4*@_);
+ &popvars();
}
+
+sub pushvars
+ {
+ &main'pushf();
+ &main'push("edx");
+ &main'push("ecx");
+ &main'push("eax");
+ }
+
+sub popvars
+ {
+ &main'pop("eax");
+ &main'pop("ecx");
+ &main'pop("edx");
+ &main'popf();
+ }
+
+sub main'picmeup
+ {
+ local($dst,$sym)=@_;
+ if ($main'cpp)
+ {
+ local($tmp)=<<___;
+#if (defined(ELF) || defined(SOL)) && defined(PIC)
+ call 1f
+1: popl $regs{$dst}
+ addl \$_GLOBAL_OFFSET_TABLE_+[.-1b],$regs{$dst}
+ movl $sym\@GOT($regs{$dst}),$regs{$dst}
+#else
+ leal $sym,$regs{$dst}
+#endif
+___
+ push(@out,$tmp);
+ }
+ elsif ($main'pic && ($main'elf || $main'aout))
+ {
+ &main'call(&main'label("PIC_me_up"));
+ &main'set_label("PIC_me_up");
+ &main'blindpop($dst);
+ &main'add($dst,"\$${under}_GLOBAL_OFFSET_TABLE_+[.-".
+ &main'label("PIC_me_up") . "]");
+ &main'mov($dst,&main'DWP($under.$sym."\@GOT",$dst));
+ }
+ else
+ {
+ &main'lea($dst,&main'DWP($sym));
+ }
+ }
+
+sub main'blindpop { &out1("popl",@_); }
+
+sub main'initseg
+ {
+ local($f)=@_;
+ local($tmp);
+ if ($main'elf)
+ {
+ $tmp=<<___;
+.section .init
+ call $under$f
+___
+ }
+ elsif ($main'coff)
+ {
+ $tmp=<<___; # applies to both Cygwin and Mingw
+.section .ctors
+.long $under$f
+___
+ }
+ elsif ($main'aout)
+ {
+ local($ctor)="${under}_GLOBAL_\$I\$$f";
+ $tmp=".text\n";
+ $tmp.=".type $ctor,\@function\n" if ($main'pic);
+ $tmp.=<<___; # OpenBSD way...
+.globl $ctor
+.align 2
+$ctor:
+ jmp $under$f
+___
+ }
+ push(@out,$tmp) if ($tmp);
+ }
+
+1;
projects / openssl.git / blobdiff