Commit 0fa79cbe authored by Andy Polyakov's avatar Andy Polyakov
Browse files

Synchronize x86 perlasm with HEAD.

parent be22102d

crypto/perlasm/x86asm.pl

+132 −119
Original line number Diff line number Diff line 
#!/usr/local/bin/perl

#!/usr/bin/env perl



# require 'x86asm.pl';

# &asm_init("cpp","des-586.pl");

# XXX

# XXX

# main'asm_finish



sub main'asm_finish

	{

	&file_end();

	&asm_finish_cpp() if $cpp;

	print &asm_get_output();

# &asm_init(<flavor>,"des-586.pl"[,$i386only]);

# &function_begin("foo");

# ...

# &function_end("foo");

# &asm_finish



# AUTOLOAD is this context has quite unpleasant side effect, namely

# that typos in function calls effectively go to assembler output,

# but on the pros side we don't have to implement one subroutine per

# each opcode...

sub ::AUTOLOAD

{ my $opcode = $AUTOLOAD;



    die "more than 2 arguments passed to $opcode" if ($#_>1);



    $opcode =~ s/.*:://;

    if    ($opcode =~ /^push/) { $stack+=4; }

    elsif ($opcode =~ /^pop/)  { $stack-=4; }



    &generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD";

}



sub main'asm_init

	{

	($type,$fn,$i386)=@_;

$out=();

$i386=0;



sub ::emit

{ my $opcode=shift;



    if ($#_==-1)    { push(@out,"\t$opcode\n");				}

    else            { push(@out,"\t$opcode\t".join(',',@_)."\n");	}

}



sub ::LB

{   $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'low byte'";

  $1."l";

}

sub ::HB

{   $_[0] =~ m/^e?([a-d])x$/o or die "$_[0] does not have a 'high byte'";

  $1."h";

}

sub ::stack_push{ my $num=$_[0]*4; $stack+=$num; &sub("esp",$num);	}

sub ::stack_pop	{ my $num=$_[0]*4; $stack-=$num; &add("esp",$num);	}

sub ::blindpop	{ &pop($_[0]); $stack+=4;				}

sub ::wparam	{ &DWP($stack+4*$_[0],"esp");				}

sub ::swtmp	{ &DWP(4*$_[0],"esp");					}



sub ::bswap

{   if ($i386)	# emulate bswap for i386

    {	&comment("bswap @_");

	&xchg(&HB(@_),&LB(@_));

	&ror (@_,16);

	&xchg(&HB(@_),&LB(@_));

    }

    else

    {	&generic("bswap",@_);	}

}

# These are made-up opcodes introduced over the years essentially

# by ignorance, just alias them to real ones...

sub ::movb	{ &mov(@_);	}

sub ::xorb	{ &xor(@_);	}

sub ::rotl	{ &rol(@_);	}

sub ::rotr	{ &ror(@_);	}

sub ::exch	{ &xchg(@_);	}

sub ::halt	{ &hlt;		}



sub ::function_begin

{   &function_begin_B(@_);

    $stack=4;

    &push("ebp");

    &push("ebx");

    &push("esi");

    &push("edi");

}



sub ::function_end

{   &pop("edi");

    &pop("esi");

    &pop("ebx");

    &pop("ebp");

    &ret();

    $stack=0;

    &function_end_B(@_);

}



sub ::function_end_A

{   &pop("edi");

    &pop("esi");

    &pop("ebx");

    &pop("ebp");

    &ret();

    $stack+=16;	# readjust esp as if we didn't pop anything

}



sub ::asciz {   foreach (@_) { &data_byte(unpack("C*",$_),0); }   }



sub ::asm_finish

{   &file_end();

    print @out;

}



sub ::asm_init

{ my ($type,$fn,$cpu)=@_;



    $filename=$fn;

    $i386=$cpu;



    $elf=$cpp=$coff=$aout=$win32=$netware=$mwerks=0;

    if    (($type eq "elf"))

    {	$elf=1;			require "x86unix.pl";	}

	elsif (	($type eq "a.out"))

    elsif (($type eq "a\.out"))

    {	$aout=1;		require "x86unix.pl";	}

    elsif (($type eq "coff" or $type eq "gaswin"))

    {	$coff=1;		require "x86unix.pl";	}

	elsif (	($type eq "cpp"))

		{ $cpp=1; require "x86unix.pl"; }

	elsif (	($type eq "win32"))

		{ $win32=1; require "x86ms.pl"; }

    elsif (($type eq "win32n"))

    {	$win32=1;		require "x86nasm.pl";	}

    elsif (($type eq "nw-nasm"))
@@ -36,13 +121,11 @@ sub main'asm_init 
    elsif (($type eq "nw-mwasm"))

    {	$netware=1; $mwerks=1;	require "x86nasm.pl";	}

    else

		{

		print STDERR <<"EOF";

    {	print STDERR <<"EOF";

Pick one target type from

	elf	- Linux, FreeBSD, Solaris x86, etc.

	a.out	- OpenBSD, DJGPP, etc.

	a.out	- DJGPP, elder OpenBSD, etc.

	coff	- GAS/COFF such as Win32 targets

	win32	- Windows 95/Windows NT

	win32n	- Windows 95/Windows NT NASM format

	nw-nasm - NetWare NASM format

	nw-mwasm- NetWare Metrowerks Assembler
@@ -53,78 +136,8 @@ EOF 
    $pic=0;

    for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }



	&asm_init_output();



&comment("Don't even think of reading this code");

&comment("It was automatically generated by $filename");

&comment("Which is a perl program used to generate the x86 assember for");

&comment("any of ELF, a.out, COFF, Win32, ...");

&comment("eric <eay\@cryptsoft.com>");

&comment("");



    $filename =~ s/\.pl$//;

    &file($filename);

}



sub asm_finish_cpp

	{

	return unless $cpp;



	local($tmp,$i);

	foreach $i (&get_labels())

		{

		$tmp.="#define $i _$i\n";

		}

	print <<"EOF";

/* Run the C pre-processor over this file with one of the following defined

 * ELF - elf object files,

 * OUT - a.out object files,

 * BSDI - BSDI style a.out object files

 * SOL - Solaris style elf

 */



#define TYPE(a,b)       .type   a,b

#define SIZE(a,b)       .size   a,b



#if defined(OUT) || (defined(BSDI) && !defined(ELF))

$tmp

#endif



#ifdef OUT

#define OK	1

#define ALIGN	4

#if defined(__CYGWIN__) || defined(__DJGPP__) || (__MINGW32__)

#undef SIZE

#undef TYPE

#define SIZE(a,b)

#define TYPE(a,b)	.def a; .scl 2; .type 32; .endef

#endif /* __CYGWIN || __DJGPP */

#endif



#if defined(BSDI) && !defined(ELF)

#define OK              1

#define ALIGN           4

#undef SIZE

#undef TYPE

#define SIZE(a,b)

#define TYPE(a,b)

#endif



#if defined(ELF) || defined(SOL)

#define OK              1

#define ALIGN           16

#endif



#ifndef OK

You need to define one of

ELF - elf systems - linux-elf, NetBSD and DG-UX

OUT - a.out systems - linux-a.out and FreeBSD

SOL - solaris systems, which are elf with strange comment lines

BSDI - a.out with a very primative version of as.

#endif



/* Let the Assembler begin :-) */

EOF

	}



1;

crypto/perlasm/x86ms.pl

deleted100644 → 0
+0 −462
Original line number Diff line number Diff line 
#!/usr/local/bin/perl



package x86ms;



$label="L000";



%lb=(	'eax',	'al',

	'ebx',	'bl',

	'ecx',	'cl',

	'edx',	'dl',

	'ax',	'al',

	'bx',	'bl',

	'cx',	'cl',

	'dx',	'dl',

	);



%hb=(	'eax',	'ah',

	'ebx',	'bh',

	'ecx',	'ch',

	'edx',	'dh',

	'ax',	'ah',

	'bx',	'bh',

	'cx',	'ch',

	'dx',	'dh',

	);



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,@_);

	foreach (@_) {

		push(@out, "EXTRN\t_$_:DWORD\n");

	}

}



sub main'LB

	{

	(defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";

	return($lb{$_[0]});

	}



sub main'HB

	{

	(defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n";

	return($hb{$_[0]});

	}



sub main'BP

	{

	&get_mem("BYTE",@_);

	}



sub main'DWP

	{

	&get_mem("DWORD",@_);

	}



sub main'QWP

	{

	&get_mem("QWORD",@_);

	}



sub main'BC

	{

	return @_;

	}



sub main'DWC

	{

	return @_;

	}



sub main'stack_push

	{

	local($num)=@_;

	$stack+=$num*4;

	&main'sub("esp",$num*4);

	}



sub main'stack_pop

	{

	local($num)=@_;

	$stack-=$num*4;

	&main'add("esp",$num*4);

	}



sub get_mem

	{

	local($size,$addr,$reg1,$reg2,$idx)=@_;

	local($t,$post);

	local($ret)="$size PTR ";



	$addr =~ s/^\s+//;

	if ($addr =~ /^(.+)\+(.+)$/)

		{

		$reg2=&conv($1);

		$addr="_$2";

		}

	elsif ($addr =~ /^[_a-z][_a-z0-9]*$/i)

		{

		$addr="_$addr";

		}



	if ($addr =~ /^.+\-.+$/) { $addr="($addr)"; }



	$reg1="$regs{$reg1}" if defined($regs{$reg1});

	$reg2="$regs{$reg2}" if defined($regs{$reg2});

	if (($addr ne "") && ($addr ne 0))

		{

		if ($addr !~ /^-/)

			{ $ret.=$addr; }

		else	{ $post=$addr; }

		}

	if ($reg2 ne "")

		{

		$t="";

		$t="*$idx" if ($idx != 0);

		$reg1="+".$reg1 if ("$reg1$post" ne "");

		$ret.="[$reg2$t$reg1$post]";

		}

	else

		{

		$ret.="[$reg1$post]"

		}

	$ret =~ s/\[\]//;	# in case $addr was the only argument

	return($ret);

	}



sub main'mov	{ &out2("mov",@_); }

sub main'movb	{ &out2("mov",@_); }

sub main'and	{ &out2("and",@_); }

sub main'or	{ &out2("or",@_); }

sub main'shl	{ &out2("shl",@_); }

sub main'shr	{ &out2("shr",@_); }

sub main'xor	{ &out2("xor",@_); }

sub main'xorb	{ &out2("xor",@_); }

sub main'add	{ &out2("add",@_); }

sub main'adc	{ &out2("adc",@_); }

sub main'sub	{ &out2("sub",@_); }

sub main'sbb	{ &out2("sbb",@_); }

sub main'rotl	{ &out2("rol",@_); }

sub main'rotr	{ &out2("ror",@_); }

sub main'exch	{ &out2("xchg",@_); }

sub main'cmp	{ &out2("cmp",@_); }

sub main'lea	{ &out2("lea",@_); }

sub main'mul	{ &out1("mul",@_); }

sub main'div	{ &out1("div",@_); }

sub main'dec	{ &out1("dec",@_); }

sub main'inc	{ &out1("inc",@_); }

sub main'jmp	{ &out1("jmp",@_); }

sub main'jmp_ptr { &out1p("jmp",@_); }

sub main'je	{ &out1("je",@_); }

sub main'jle	{ &out1("jle",@_); }

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'jnz	{ &out1("jnz",@_); }

sub main'jne	{ &out1("jne",@_); }

sub main'jno	{ &out1("jno",@_); }

sub main'push	{ &out1("push",@_); $stack+=4; }

sub main'pop	{ &out1("pop",@_); $stack-=4; }

sub main'pushf	{ &out0("pushfd"); $stack+=4; }

sub main'popf	{ &out0("popfd"); $stack-=4; }

sub main'bswap	{ &out1("bswap",@_); &using486(); }

sub main'not	{ &out1("not",@_); }

sub main'call	{ &out1("call",($_[0]=~/^\$L/?'':'_').$_[0]); }

sub main'call_ptr { &out1p("call",@_); }

sub main'ret	{ &out0("ret"); }

sub main'nop	{ &out0("nop"); }

sub main'test	{ &out2("test",@_); }

sub main'bt	{ &out2("bt",@_); }

sub main'leave	{ &out0("leave"); }

sub main'cpuid  { &out0("DW\t0A20Fh"); }

sub main'rdtsc  { &out0("DW\t0310Fh"); }

sub main'halt	{ &out0("hlt"); }

sub main'movz	{ &out2("movzx",@_); }

sub main'neg	{ &out1("neg",@_); }

sub main'cld	{ &out0("cld"); }



# 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",@_); }



sub out2

	{

	local($name,$p1,$p2)=@_;

	local($l,$t,$line);



	$line="\t$name\t";

	$t=&conv($p1).",";

	$l=length($t);

	$line.="$t";

	$l=4-($l+9)/8;

	$line.="\t" x $l;

	$line.=&conv($p2);

	if ($line=~/\bxmm[0-7]\b/i) { $line=~s/\b[A-Z]+WORD\s+PTR/XMMWORD PTR/i; }

	push(@out,$line."\n");

	}



sub out0

	{

	local($name)=@_;



	push(@out,"\t$name\n");

	}



sub out1

	{

	local($name,$p1)=@_;

	local($l,$t);



	push(@out,"\t$name\t".&conv($p1)."\n");

	}



sub conv

	{

	local($p)=@_;



	$p =~ s/0x([0-9A-Fa-f]+)/0$1h/;

	return $p;

	}



sub using486

	{

	return if $using486;

	$using486++;

	grep(s/\.386/\.486/,@out);

	}



sub main'file

	{

	local($file)=@_;



	local($tmp)=<<"EOF";

	TITLE	$file.asm

        .386

.model	FLAT

_TEXT\$	SEGMENT PAGE 'CODE'



EOF

	push(@out,$tmp);

	}



sub main'function_begin

	{

	local($func,$extra)=@_;



	push(@labels,$func);



	local($tmp)=<<"EOF";

PUBLIC	_$func

$extra

_$func PROC NEAR

	push	ebp

	push	ebx

	push	esi

	push	edi

EOF

	push(@out,$tmp);

	$stack=20;

	}



sub main'function_begin_B

	{

	local($func,$extra)=@_;



	local($tmp)=<<"EOF";

PUBLIC	_$func

$extra

_$func PROC NEAR

EOF

	push(@out,$tmp);

	$stack=4;

	}



sub main'function_end

	{

	local($func)=@_;



	local($tmp)=<<"EOF";

	pop	edi

	pop	esi

	pop	ebx

	pop	ebp

	ret

_$func ENDP

EOF

	push(@out,$tmp);

	$stack=0;

	%label=();

	}



sub main'function_end_B

	{

	local($func)=@_;



	local($tmp)=<<"EOF";

_$func ENDP

EOF

	push(@out,$tmp);

	$stack=0;

	%label=();

	}



sub main'function_end_A

	{

	local($func)=@_;



	local($tmp)=<<"EOF";

	pop	edi

	pop	esi

	pop	ebx

	pop	ebp

	ret

EOF

	push(@out,$tmp);

	}



sub main'file_end

	{

	# try to detect if SSE2 or MMX extensions were used...

	if (grep {/\b[x]?mm[0-7]\b,/i} @out) {

		grep {s/\.[3-7]86/\.686\n\t\.XMM/} @out;

		}

	push(@out,"_TEXT\$	ENDS\n");

	push(@out,"END\n");

	}



sub main'wparam

	{

	local($num)=@_;



	return(&main'DWP($stack+$num*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

	{

	foreach (@_)

		{

		push(@out,"\t; $_\n");

		}

	}



sub main'public_label

	{

	$label{$_[0]}="_$_[0]"	if (!defined($label{$_[0]}));

	push(@out,"PUBLIC\t$label{$_[0]}\n");

	}



sub main'label

	{

	if (!defined($label{$_[0]}))

		{

		$label{$_[0]}="\$${label}${_[0]}";

		$label++;

		}

	return($label{$_[0]});

	}



sub main'set_label

	{

	if (!defined($label{$_[0]}))

		{

		$label{$_[0]}="\$${label}${_[0]}";

		$label++;

		}

	if ($_[1]!=0 && $_[1]>1)

		{

		main'align($_[1]);

		}

	if((defined $_[2]) && ($_[2] == 1))

		{

		push(@out,"$label{$_[0]}::\n");

		}

	elsif ($label{$_[0]} !~ /^\$/)

		{

		push(@out,"$label{$_[0]}\tLABEL PTR\n");

		}

	else

		{

		push(@out,"$label{$_[0]}:\n");

		}

	}



sub main'data_byte

	{

	push(@out,"\tDB\t".join(',',@_)."\n");

	}



sub main'data_word

	{

	push(@out,"\tDD\t".join(',',@_)."\n");

	}



sub main'align

	{

	push(@out,"\tALIGN\t$_[0]\n");

	}



sub out1p

	{

	local($name,$p1)=@_;

	local($l,$t);



	push(@out,"\t$name\t".&conv($p1)."\n");

	}



sub main'picmeup

	{

	local($dst,$sym)=@_;

	&main'lea($dst,&main'DWP($sym));

	}



sub main'blindpop { &out1("pop",@_); }



sub main'initseg 

	{

	local($f)=@_;

	local($tmp)=<<___;

OPTION	DOTNAME

.CRT\$XCU	SEGMENT DWORD PUBLIC 'DATA'

EXTRN	_$f:NEAR

DD	_$f

.CRT\$XCU	ENDS

___

	push(@out,$tmp);

	}



1;

crypto/perlasm/x86nasm.pl

+194 −417

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crypto/perlasm/x86unix.pl

+266 −715

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