#!/usr/local/bin/perl
-package x86unix;
+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 $main'coff);
sub main'asm_init_output { @out=(); }
sub main'asm_get_output { return(@out); }
'edi', '%edi',
'ebp', '%ebp',
'esp', '%esp',
+
+ 'mm0', '%mm0',
+ 'mm1', '%mm1',
+ 'mm2', '%mm2',
+ 'mm3', '%mm3',
+ 'mm4', '%mm4',
+ 'mm5', '%mm5',
+ 'mm6', '%mm6',
+ 'mm7', '%mm7',
+
+ 'xmm0', '%xmm0',
+ 'xmm1', '%xmm1',
+ 'xmm2', '%xmm2',
+ 'xmm3', '%xmm3',
+ 'xmm4', '%xmm4',
+ 'xmm5', '%xmm5',
+ 'xmm6', '%xmm6',
+ 'xmm7', '%xmm7',
);
%reg_val=(
local($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 ($reg2 ne "")
{
- if($idx ne "")
+ if($idx ne "" && $idx != 0)
{ $ret.="($reg1,$reg2,$idx)"; }
else
{ $ret.="($reg1,$reg2)"; }
}
- else
+ elsif ($reg1 ne "")
{ $ret.="($reg1)" }
return($ret);
}
+sub main'QWP
+ {
+ return(&main'DWP(@_));
+ }
+
sub main'BP
{
return(&main'DWP(@_));
sub main'shr { &out2("shrl",@_); }
sub main'xor { &out2("xorl",@_); }
sub main'xorb { &out2("xorb",@_); }
-sub main'add { &out2("addl",@_); }
+sub main'add { &out2($_[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($_[0]=~/%[a-d][lh]/?"xchgb":"xchgl",@_); }
sub main'cmp { &out2("cmpl",@_); }
sub main'lea { &out2("leal",@_); }
sub main'mul { &out1("mull",@_); }
sub main'jz { &out1("jz",@_); }
sub main'jge { &out1("jge",@_); }
sub main'jl { &out1("jl",@_); }
+sub main'ja { &out1("ja",@_); }
+sub main'jae { &out1("jae",@_); }
sub main'jb { &out1("jb",@_); }
+sub main'jbe { &out1("jbe",@_); }
sub main'jc { &out1("jc",@_); }
sub main'jnc { &out1("jnc",@_); }
sub main'jno { &out1("jno",@_); }
sub main'dec { &out1("decl",@_); }
-sub main'inc { &out1("incl",@_); }
+sub main'inc { &out1($_[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"); $stack-=4; }
sub main'not { &out1("notl",@_); }
-sub main'call { &out1("call",$under.$_[0]); }
+sub main'call { my $pre=$under;
+ foreach $i (%label)
+ { if ($label{$i} eq $_[0]) { $pre=''; last; } }
+ &out1("call",$pre.$_[0]);
+ }
sub main'ret { &out0("ret"); }
sub main'nop { &out0("nop"); }
+sub main'test { &out2("testl",@_); }
+sub main'bt { &out2("btl",@_); }
+sub main'leave { &out0("leave"); }
+sub main'cpuid { &out0(".byte\t0x0f,0xa2"); }
+sub main'rdtsc { &out0(".byte\t0x0f,0x31"); }
+sub main'halt { &out0("hlt"); }
+sub main'movz { &out2("movzbl",@_); }
+
+# SSE2
+sub main'emms { &out0("emms"); }
+sub main'movd { &out2("movd",@_); }
+sub main'movq { &out2("movq",@_); }
+sub main'movdqu { &out2("movdqu",@_); }
+sub main'movdqa { &out2("movdqa",@_); }
+sub main'movdq2q{ &out2("movdq2q",@_); }
+sub main'movq2dq{ &out2("movq2dq",@_); }
+sub main'paddq { &out2("paddq",@_); }
+sub main'pmuludq{ &out2("pmuludq",@_); }
+sub main'psrlq { &out2("psrlq",@_); }
+sub main'psllq { &out2("psllq",@_); }
+sub main'pxor { &out2("pxor",@_); }
+sub main'por { &out2("por",@_); }
+sub main'pand { &out2("pand",@_); }
# The bswapl instruction is new for the 486. Emulate if i386.
sub main'bswap
local($tmp)=<<"EOF";
.file "$file.s"
- .version "01.01"
-gcc2_compiled.:
EOF
push(@out,$tmp);
}
local($tmp)=<<"EOF";
.text
- .align $align
-.globl $func
+.globl $func
EOF
push(@out,$tmp);
if ($main'cpp)
- { $tmp=push(@out,"\tTYPE($func,\@function)\n"); }
- else { $tmp=push(@out,"\t.type\t$func,\@function\n"); }
+ { $tmp=push(@out,"TYPE($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");
$tmp=<<"EOF";
pushl %ebp
local($tmp)=<<"EOF";
.text
- .align $align
-.globl $func
+.globl $func
EOF
push(@out,$tmp);
if ($main'cpp)
- { push(@out,"\tTYPE($func,\@function)\n"); }
- else { push(@out,"\t.type $func,\@function\n"); }
+ { push(@out,"TYPE($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");
$stack=4;
}
popl %ebx
popl %ebp
ret
-.${func}_end:
+${dot}L_${func}_end:
EOF
push(@out,$tmp);
+
if ($main'cpp)
- { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
- else { push(@out,"\t.size\t$func,.${func}_end-$func\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=();
$func=$under.$func;
- push(@out,".L_${func}_end:\n");
+ push(@out,"${dot}L_${func}_end:\n");
if ($main'cpp)
- { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
- else { push(@out,"\t.size\t$func,.L_${func}_end-$func\n"); }
- push(@out,".ident \"desasm.pl\"\n");
+ { push(@out,"SIZE($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");
$stack=0;
%label=();
}
sub main'comment
{
+ if (!defined($com_start) or $main'elf)
+ { # Regarding $main'elf above...
+ # GNU and SVR4 as'es use different comment delimiters,
+ push(@out,"\n"); # so we just skip ELF comments...
+ return;
+ }
foreach (@_)
{
if (/^\s*$/)
}
}
+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++;
}
- push(@out,".align $align\n") if ($_[1] != 0);
+ 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
+ .align $align
+ 1:
+___
+ push (@out,$tmp);
+ }
+
+ if ($const ne "")
+ {
+ push(@out,".section .rodata\n");
+ push(@out,$const);
+ $const="";
+ }
}
sub main'data_word
{
- push(@out,"\t.long $_[0]\n");
+ 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
+ .align $align
+___
+ }
+ elsif ($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