[thirdparty/openssl.git] / crypto / perlasm / ppc-xlate.pl

#! /usr/bin/env perl
# Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

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|64le)/
			&& 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 .= ".previous\n";

				$name = ".$name";
				last;
			      };
    }

    $ret = ".globl	$name" if (!$ret);
    $$global = $name;
    $ret;
};
my $text = sub {
    my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
    $ret;
};
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/)
    {	shift;
	my $name = shift; $name =~ s|^[\.\_]||;
	my $ret  = ".size	$name,.-".($flavour=~/64$/?".":"").$name;
	$ret .= "\n.size	.$name,.-.$name" if ($flavour=~/64$/);
	$ret;
    }
    else
    {	"";	}
};
my $asciz = sub {
    shift;
    my $line = join(",",@_);
    if ($line =~ /^"(.*)"$/)
    {	".byte	" . join(",",unpack("C*",$1),0) . "\n.align	2";	}
    else
    {	"";	}
};
my $quad = sub {
    shift;
    my @ret;
    my ($hi,$lo);
    for (@_) {
	if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
	{  $hi=$1?"0x$1":"0"; $lo="0x$2";  }
	elsif (/^([0-9]+)$/o)
	{  $hi=$1>>32; $lo=$1&0xffffffff;  } # error-prone with 32-bit perl
	else
	{  $hi=undef; $lo=$_; }

	if (defined($hi))
	{  push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo");  }
	else
	{  push(@ret,".quad	$lo");  }
    }
    join("\n",@ret);
};

################################################################
# 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";
};
my $vmr = sub {
    my ($f,$vx,$vy) = @_;
    "	vor	$vx,$vy,$vy";
};

# Some ABIs specify vrsave, special-purpose register #256, as reserved
# for system use.
my $no_vrsave = ($flavour =~ /aix|linux64le/);
my $mtspr = sub {
    my ($f,$idx,$ra) = @_;
    if ($idx == 256 && $no_vrsave) {
	"	or	$ra,$ra,$ra";
    } else {
	"	mtspr	$idx,$ra";
    }
};
my $mfspr = sub {
    my ($f,$rd,$idx) = @_;
    if ($idx == 256 && $no_vrsave) {
	"	li	$rd,-1";
    } else {
	"	mfspr	$rd,$idx";
    }
};

# PowerISA 2.06 stuff
sub vsxmem_op {
    my ($f, $vrt, $ra, $rb, $op) = @_;
    "	.long	".sprintf "0x%X",(31<<26)|($vrt<<21)|($ra<<16)|($rb<<11)|($op*2+1);
}
# made-up unaligned memory reference AltiVec/VMX instructions
my $lvx_u	= sub {	vsxmem_op(@_, 844); };	# lxvd2x
my $stvx_u	= sub {	vsxmem_op(@_, 972); };	# stxvd2x
my $lvdx_u	= sub {	vsxmem_op(@_, 588); };	# lxsdx
my $stvdx_u	= sub {	vsxmem_op(@_, 716); };	# stxsdx
my $lvx_4w	= sub { vsxmem_op(@_, 780); };	# lxvw4x
my $stvx_4w	= sub { vsxmem_op(@_, 908); };	# stxvw4x

# PowerISA 2.07 stuff
sub vcrypto_op {
    my ($f, $vrt, $vra, $vrb, $op) = @_;
    "	.long	".sprintf "0x%X",(4<<26)|($vrt<<21)|($vra<<16)|($vrb<<11)|$op;
}
my $vcipher	= sub { vcrypto_op(@_, 1288); };
my $vcipherlast	= sub { vcrypto_op(@_, 1289); };
my $vncipher	= sub { vcrypto_op(@_, 1352); };
my $vncipherlast= sub { vcrypto_op(@_, 1353); };
my $vsbox	= sub { vcrypto_op(@_, 0, 1480); };
my $vshasigmad	= sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1730); };
my $vshasigmaw	= sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4|$six, 1666); };
my $vpmsumb	= sub { vcrypto_op(@_, 1032); };
my $vpmsumd	= sub { vcrypto_op(@_, 1224); };
my $vpmsubh	= sub { vcrypto_op(@_, 1096); };
my $vpmsumw	= sub { vcrypto_op(@_, 1160); };
my $vaddudm	= sub { vcrypto_op(@_, 192);  };

my $mtsle	= sub {
    my ($f, $arg) = @_;
    "	.long	".sprintf "0x%X",(31<<26)|($arg<<21)|(147*2);
};

# PowerISA 3.0 stuff
my $maddhdu = sub {
    my ($f, $rt, $ra, $rb, $rc) = @_;
    "	.long	".sprintf "0x%X",(4<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($rc<<6)|49;
};
my $maddld = sub {
    my ($f, $rt, $ra, $rb, $rc) = @_;
    "	.long	".sprintf "0x%X",(4<<26)|($rt<<21)|($ra<<16)|($rb<<11)|($rc<<6)|51;
};

my $darn = sub {
    my ($f, $rt, $l) = @_;
    "	.long	".sprintf "0x%X",(31<<26)|($rt<<21)|($l<<16)|(755<<1);
};

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 = $1;
	if ($label) {
	    printf "%s:",($GLOBALS{$label} or $label);
	    printf "\n.localentry\t$GLOBALS{$label},0"	if ($GLOBALS{$label} && $flavour =~ /linux.*64le/);
	}
    }

    {
	$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/\b(c?[rf]|v|vs)([0-9]+)\b/$2/g if ($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;
Commit	Line	Data
e0a65194 RS	1	#! /usr/bin/env perl
	2	# Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
	3	#
	4	# Licensed under the OpenSSL license (the "License"). You may not use
	5	# this file except in compliance with the License. You can obtain a copy
	6	# in the file LICENSE in the source distribution or at
	7	# https://www.openssl.org/source/license.html
2c5d4daa	8
addd641f	9	my $flavour = shift;
2c5d4daa AP	10	my $output = shift;
	11	open STDOUT,">$output" \|\| die "can't open $output: $!";
	12
2c5d4daa	13	my %GLOBALS;
c6149e2f	14	my $dotinlocallabels=($flavour=~/linux/)?1:0;
2c5d4daa AP	15
	16	################################################################
	17	# directives which need special treatment on different platforms
	18	################################################################
	19	my $globl = sub {
	20	my $junk = shift;
	21	my $name = shift;
	22	my $global = \$GLOBALS{$name};
	23	my $ret;
	24
	25	$name =~ s\|^[\.\_]\|\|;
	26
	27	SWITCH: for ($flavour) {
	28	/aix/ && do { $name = ".$name";
	29	last;
	30	};
	31	/osx/ && do { $name = "_$name";
	32	last;
	33	};
f586d971 AP	34	/linux.*(32\|64le)/
f586d971 AP	35	&& do { $ret .= ".globl $name\n";
2c5d4daa	36	$ret .= ".type $name,\@function";
2c5d4daa AP	37	last;
2c5d4daa AP	38	};
a3e07010 AP	39	/linux.*64/ && do { $ret .= ".globl $name\n";
a3e07010 AP	40	$ret .= ".type $name,\@function\n";
2c5d4daa	41	$ret .= ".section \".opd\",\"aw\"\n";
2c5d4daa AP	42	$ret .= ".align 3\n";
	43	$ret .= "$name:\n";
	44	$ret .= ".quad .$name,.TOC.\@tocbase,0\n";
2c5d4daa AP	45	$ret .= ".previous\n";
	46
	47	$name = ".$name";
2c5d4daa AP	48	last;
	49	};
	50	}
	51
	52	$ret = ".globl $name" if (!$ret);
	53	$$global = $name;
	54	$ret;
	55	};
fe716ba6	56	my $text = sub {
128e1d10	57	my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
f586d971 AP	58	$ret = ".abiversion 2\n".$ret if ($flavour =~ /linux.*64le/);
f586d971 AP	59	$ret;
fe716ba6	60	};
2c5d4daa AP	61	my $machine = sub {
	62	my $junk = shift;
	63	my $arch = shift;
67d99090 AP	64	if ($flavour =~ /osx/)
	65	{ $arch =~ s/\"//g;
	66	$arch = ($flavour=~/64/) ? "ppc970-64" : "ppc970" if ($arch eq "any");
	67	}
2c5d4daa AP	68	".machine $arch";
2c5d4daa AP	69	};
a3e07010	70	my $size = sub {
d6019e16	71	if ($flavour =~ /linux/)
a3e07010	72	{ shift;
d6019e16	73	my $name = shift; $name =~ s\|^[\.\_]\|\|;
f586d971 AP	74	my $ret = ".size $name,.-".($flavour=~/64$/?".":"").$name;
f586d971 AP	75	$ret .= "\n.size .$name,.-.$name" if ($flavour=~/64$/);
d6019e16	76	$ret;
a3e07010 AP	77	}
	78	else
	79	{ ""; }
	80	};
d68ff710 AP	81	my $asciz = sub {
	82	shift;
	83	my $line = join(",",@_);
	84	if ($line =~ /^"(.*)"$/)
287a9ee7	85	{ ".byte " . join(",",unpack("C*",$1),0) . "\n.align 2"; }
d68ff710 AP	86	else
	87	{ ""; }
	88	};
8ff8a829 AP	89	my $quad = sub {
	90	shift;
	91	my @ret;
	92	my ($hi,$lo);
	93	for (@_) {
	94	if (/^0x([0-9a-f]*?)([0-9a-f]{1,8})$/io)
	95	{ $hi=$1?"0x$1":"0"; $lo="0x$2"; }
	96	elsif (/^([0-9]+)$/o)
	97	{ $hi=$1>>32; $lo=$1&0xffffffff; } # error-prone with 32-bit perl
	98	else
	99	{ $hi=undef; $lo=$_; }
	100
	101	if (defined($hi))
0e0a1053	102	{ push(@ret,$flavour=~/le$/o?".long\t$lo,$hi":".long\t$hi,$lo"); }
8ff8a829 AP	103	else
	104	{ push(@ret,".quad $lo"); }
	105	}
	106	join("\n",@ret);
	107	};
2c5d4daa AP	108
	109	################################################################
	110	# simplified mnemonics not handled by at least one assembler
	111	################################################################
	112	my $cmplw = sub {
	113	my $f = shift;
	114	my $cr = 0; $cr = shift if ($#_>1);
67d99090 AP	115	# Some out-of-date 32-bit GNU assembler just can't handle cmplw...
	116	($flavour =~ /linux.*32/) ?
	117	" .long ".sprintf "0x%x",31<<26\|$cr<<23\|$_[0]<<16\|$_[1]<<11\|64 :
	118	" cmplw ".join(',',$cr,@_);
2c5d4daa AP	119	};
	120	my $bdnz = sub {
	121	my $f = shift;
0fcb905b	122	my $bo = $f=~/[\+\-]/ ? 16+9 : 16; # optional "to be taken" hint
2c5d4daa	123	" bc $bo,0,".shift;
0fcb905b AP	124	} if ($flavour!~/linux/);
	125	my $bltlr = sub {
	126	my $f = shift;
	127	my $bo = $f=~/\-/ ? 12+2 : 12; # optional "not to be taken" hint
	128	($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
	129	" .long ".sprintf "0x%x",19<<26\|$bo<<21\|16<<1 :
	130	" bclr $bo,0";
	131	};
	132	my $bnelr = sub {
	133	my $f = shift;
	134	my $bo = $f=~/\-/ ? 4+2 : 4; # optional "not to be taken" hint
	135	($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
	136	" .long ".sprintf "0x%x",19<<26\|$bo<<21\|2<<16\|16<<1 :
	137	" bclr $bo,2";
	138	};
7676eebf AP	139	my $beqlr = sub {
	140	my $f = shift;
	141	my $bo = $f=~/-/ ? 12+2 : 12; # optional "not to be taken" hint
	142	($flavour =~ /linux/) ? # GNU as doesn't allow most recent hints
	143	" .long ".sprintf "0x%X",19<<26\|$bo<<21\|2<<16\|16<<1 :
	144	" bclr $bo,2";
	145	};
0fcb905b AP	146	# GNU assembler can't handle extrdi rA,rS,16,48, or when sum of last two
	147	# arguments is 64, with "operand out of range" error.
	148	my $extrdi = sub {
	149	my ($f,$ra,$rs,$n,$b) = @_;
	150	$b = ($b+$n)&63; $n = 64-$n;
	151	" rldicl $ra,$rs,$b,$n";
2c5d4daa	152	};
26e18383 AP	153	my $vmr = sub {
	154	my ($f,$vx,$vy) = @_;
	155	" vor $vx,$vy,$vy";
	156	};
2c5d4daa	157
b5516cfb AP	158	# Some ABIs specify vrsave, special-purpose register #256, as reserved
	159	# for system use.
	160	my $no_vrsave = ($flavour =~ /aix\|linux64le/);
	161	my $mtspr = sub {
	162	my ($f,$idx,$ra) = @_;
	163	if ($idx == 256 && $no_vrsave) {
	164	" or $ra,$ra,$ra";
	165	} else {
	166	" mtspr $idx,$ra";
	167	}
	168	};
	169	my $mfspr = sub {
	170	my ($f,$rd,$idx) = @_;
	171	if ($idx == 256 && $no_vrsave) {
	172	" li $rd,-1";
	173	} else {
	174	" mfspr $rd,$idx";
	175	}
	176	};
	177
f75faa16 AP	178	# PowerISA 2.06 stuff
	179	sub vsxmem_op {
	180	my ($f, $vrt, $ra, $rb, $op) = @_;
	181	" .long ".sprintf "0x%X",(31<<26)\|($vrt<<21)\|($ra<<16)\|($rb<<11)\|($op*2+1);
	182	}
	183	# made-up unaligned memory reference AltiVec/VMX instructions
	184	my $lvx_u = sub { vsxmem_op(@_, 844); }; # lxvd2x
	185	my $stvx_u = sub { vsxmem_op(@_, 972); }; # stxvd2x
	186	my $lvdx_u = sub { vsxmem_op(@_, 588); }; # lxsdx
	187	my $stvdx_u = sub { vsxmem_op(@_, 716); }; # stxsdx
c7ada16d AP	188	my $lvx_4w = sub { vsxmem_op(@_, 780); }; # lxvw4x
c7ada16d AP	189	my $stvx_4w = sub { vsxmem_op(@_, 908); }; # stxvw4x
f75faa16 AP	190
	191	# PowerISA 2.07 stuff
	192	sub vcrypto_op {
	193	my ($f, $vrt, $vra, $vrb, $op) = @_;
	194	" .long ".sprintf "0x%X",(4<<26)\|($vrt<<21)\|($vra<<16)\|($vrb<<11)\|$op;
	195	}
	196	my $vcipher = sub { vcrypto_op(@_, 1288); };
	197	my $vcipherlast = sub { vcrypto_op(@_, 1289); };
	198	my $vncipher = sub { vcrypto_op(@_, 1352); };
	199	my $vncipherlast= sub { vcrypto_op(@_, 1353); };
	200	my $vsbox = sub { vcrypto_op(@_, 0, 1480); };
	201	my $vshasigmad = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4\|$six, 1730); };
	202	my $vshasigmaw = sub { my ($st,$six)=splice(@_,-2); vcrypto_op(@_, $st<<4\|$six, 1666); };
	203	my $vpmsumb = sub { vcrypto_op(@_, 1032); };
	204	my $vpmsumd = sub { vcrypto_op(@_, 1224); };
	205	my $vpmsubh = sub { vcrypto_op(@_, 1096); };
	206	my $vpmsumw = sub { vcrypto_op(@_, 1160); };
c7ada16d	207	my $vaddudm = sub { vcrypto_op(@_, 192); };
f75faa16 AP	208
	209	my $mtsle = sub {
	210	my ($f, $arg) = @_;
	211	" .long ".sprintf "0x%X",(31<<26)\|($arg<<21)\|(147*2);
	212	};
	213
e0e53282 AP	214	# PowerISA 3.0 stuff
	215	my $maddhdu = sub {
	216	my ($f, $rt, $ra, $rb, $rc) = @_;
	217	" .long ".sprintf "0x%X",(4<<26)\|($rt<<21)\|($ra<<16)\|($rb<<11)\|($rc<<6)\|49;
	218	};
	219	my $maddld = sub {
	220	my ($f, $rt, $ra, $rb, $rc) = @_;
	221	" .long ".sprintf "0x%X",(4<<26)\|($rt<<21)\|($ra<<16)\|($rb<<11)\|($rc<<6)\|51;
	222	};
	223
	224	my $darn = sub {
	225	my ($f, $rt, $l) = @_;
	226	" .long ".sprintf "0x%X",(31<<26)\|($rt<<21)\|($l<<16)\|(755<<1);
	227	};
	228
2c5d4daa AP	229	while($line=<>) {
	230
	231	$line =~ s\|[#!;].*$\|\|; # get rid of asm-style comments...
	232	$line =~ s\|/\.\*/\|\|; # ... and C-style comments...
	233	$line =~ s\|^\s+\|\|; # ... and skip white spaces in beginning...
	234	$line =~ s\|\s+$\|\|; # ... and at the end
	235
	236	{
	237	$line =~ s\|\b\.L(\w+)\|L$1\|g; # common denominator for Locallabel
	238	$line =~ s\|\bL(\w+)\|\.L$1\|g if ($dotinlocallabels);
	239	}
	240
	241	{
	242	$line =~ s\|(^[\.\w]+)\:\s*\|\|;
	243	my $label = $1;
f586d971 AP	244	if ($label) {
	245	printf "%s:",($GLOBALS{$label} or $label);
	246	printf "\n.localentry\t$GLOBALS{$label},0" if ($GLOBALS{$label} && $flavour =~ /linux.*64le/);
	247	}
2c5d4daa AP	248	}
	249
	250	{
	251	$line =~ s\|^\s(\.?)(\w+)([\.\+\-]?)\s\|\|;
	252	my $c = $1; $c = "\t" if ($c eq "");
	253	my $mnemonic = $2;
	254	my $f = $3;
	255	my $opcode = eval("\$$mnemonic");
26e18383	256	$line =~ s/\b(c?[rf]\|v\|vs)([0-9]+)\b/$2/g if ($c ne "." and $flavour !~ /osx/);
2c5d4daa AP	257	if (ref($opcode) eq 'CODE') { $line = &$opcode($f,split(',',$line)); }
	258	elsif ($mnemonic) { $line = $c.$mnemonic.$f."\t".$line; }
	259	}
	260
	261	print $line if ($line);
	262	print "\n";
	263	}
	264
	265	close STDOUT;