# Win64 prologue copies %rsp value to %rax. For further details
# see SEH paragraph at the end.
# 9. .init segment is allowed to contain calls to functions only.
+# a. If function accepts more than 4 arguments *and* >4th argument
+# is declared as non 64-bit value, do clear its upper part.
\f
my $flavour = shift;
my $output = shift;
my $nasmref=2.03;
my $nasm=0;
-if ($flavour eq "mingw64") { $gas=1; $elf=0; $win64=1; $prefix="_"; }
+if ($flavour eq "mingw64") { $gas=1; $elf=0; $win64=1;
+ $prefix=`echo __USER_LABEL_PREFIX__ | $ENV{CC} -E -P -`;
+ chomp($prefix);
+ }
elsif ($flavour eq "macosx") { $gas=1; $elf=0; $prefix="_"; $decor="L\$"; }
elsif ($flavour eq "masm") { $gas=0; $elf=0; $masm=$masmref; $win64=1; $decor="\$L\$"; }
elsif ($flavour eq "nasm") { $gas=0; $elf=0; $nasm=$nasmref; $win64=1; $decor="\$L\$"; $PTR=""; }
$self->{op} = $1;
$self->{sz} = "b";
} elsif ($self->{op} =~ /call|jmp/) {
- $self->{sz} = ""
+ $self->{sz} = "";
+ } elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op)/) { # SSEn
+ $self->{sz} = "";
} elsif ($self->{op} =~ /([a-z]{3,})([qlwb])$/) {
$self->{op} = $1;
$self->{sz} = $2;
if ($gas) {
# Solaris /usr/ccs/bin/as can't handle multiplications
# in $self->{value}
- $self->{value} =~ s/(?<![0-9a-f])(0[x0-9a-f]+)/oct($1)/egi;
+ $self->{value} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
$self->{value} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
sprintf "\$%s",$self->{value};
} else {
- $self->{value} =~ s/0x([0-9a-f]+)/0$1h/ig;
+ $self->{value} =~ s/(0b[0-1]+)/oct($1)/eig;
+ $self->{value} =~ s/0x([0-9a-f]+)/0$1h/ig if ($masm);
sprintf "%s",$self->{value};
}
}
if ($gas) {
# Solaris /usr/ccs/bin/as can't handle multiplications
- # in $self->{label}
- $self->{label} =~ s/(?<![0-9a-f])(0[x0-9a-f]+)/oct($1)/egi;
+ # in $self->{label}, new gas requires sign extension...
+ use integer;
+ $self->{label} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
$self->{label} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
+ $self->{label} =~ s/([0-9]+)/$1<<32>>32/eg;
$self->{label} =~ s/^___imp_/__imp__/ if ($flavour eq "mingw64");
if (defined($self->{index})) {
sprintf "%s%s(%%%s)", $self->{asterisk},$self->{label},$self->{base};
}
} else {
- %szmap = ( b=>"BYTE$PTR", w=>"WORD$PTR", l=>"DWORD$PTR", q=>"QWORD$PTR" );
+ %szmap = ( b=>"BYTE$PTR", w=>"WORD$PTR", l=>"DWORD$PTR",
+ q=>"QWORD$PTR",o=>"OWORD$PTR" );
$self->{label} =~ s/\./\$/g;
- $self->{label} =~ s/0x([0-9a-f]+)/0$1h/ig;
+ $self->{label} =~ s/(?<![\w\$\.])0x([0-9a-f]+)/0$1h/ig;
$self->{label} = "($self->{label})" if ($self->{label} =~ /[\*\+\-\/]/);
$sz="q" if ($self->{asterisk});
/\.align/ && do { $self->{value} = "ALIGN\t".$line; last; };
/\.(value|long|rva|quad)/
&& do { my $sz = substr($1,0,1);
- my @arr = split(',',$line);
+ my @arr = split(/,\s*/,$line);
my $last = pop(@arr);
my $conv = sub { my $var=shift;
- $var=~s/0x([0-9a-f]+)/0$1h/ig;
+ $var=~s/^(0b[0-1]+)/oct($1)/eig;
+ $var=~s/^0x([0-9a-f]+)/0$1h/ig if ($masm);
if ($sz eq "D" && ($current_segment=~/.[px]data/ || $dir eq ".rva"))
{ $var=~s/([_a-z\$\@][_a-z0-9\$\@]*)/$nasm?"$1 wrt ..imagebase":"imagerel $1"/egi; }
$var;
$self->{value} .= &$conv($last);
last;
};
- /\.byte/ && do { my @str=split(",",$line);
+ /\.byte/ && do { my @str=split(/,\s*/,$line);
+ map(s/(0b[0-1]+)/oct($1)/eig,@str);
+ map(s/0x([0-9a-f]+)/0$1h/ig,@str) if ($masm);
while ($#str>15) {
$self->{value}.="DB\t"
.join(",",@str[0..15])."\n";
}
}
+sub rex {
+ local *opcode=shift;
+ my ($dst,$src)=@_;
+
+ if ($dst>=8 || $src>=8) {
+ $rex=0x40;
+ $rex|=0x04 if($dst>=8);
+ $rex|=0x01 if($src>=8);
+ push @opcode,$rex;
+ }
+}
+
+# older gas doesn't handle SSE>2 instructions
+my %regrm = ( "%eax"=>0, "%ecx"=>1, "%edx"=>2, "%ebx"=>3,
+ "%esp"=>4, "%ebp"=>5, "%esi"=>6, "%edi"=>7 );
+
+my $pextrd = sub {
+ my ($imm,$src,$dst) = @_;
+ if ("$imm:$src" =~ /\$([0-9]+):%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ $imm=$1;
+ $src=$2;
+ if ($dst =~ /%r([0-9]+)d/) { $dst = $1; }
+ elsif ($dst =~ /%e/) { $dst = $regrm{$dst}; }
+ rex(\@opcode,$src,$dst);
+ push @opcode,0x0f,0x3a,0x16;
+ push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
+ push @opcode,$imm;
+ printf "\t.byte\t%s\n",join(',',@opcode);
+ } else {
+ printf "\tpextrd\t%s\n",join(',',@_);
+ }
+} if ($gas);
+
+my $pinsrd = sub {
+ my ($imm,$src,$dst) = @_;
+ if ("$imm:$dst" =~ /\$([0-9]+):%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ $imm=$1;
+ $dst=$2;
+ if ($src =~ /%r([0-9]+)d/) { $src = $1; }
+ elsif ($src =~ /%e/) { $src = $regrm{$src}; }
+ rex(\@opcode,$dst,$src);
+ push @opcode,0x0f,0x3a,0x22;
+ push @opcode,0xc0|(($dst&7)<<3)|($src&7); # ModR/M
+ push @opcode,$imm;
+ printf "\t.byte\t%s\n",join(',',@opcode);
+ } else {
+ printf "\tpinsrd\t%s\n",join(',',@_);
+ }
+} if ($gas);
+
+my $pshufb = sub {
+ my ($src,$dst) = @_;
+ if ("$dst:$src" =~ /%xmm([0-9]+):%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ rex(\@opcode,$1,$2);
+ push @opcode,0x0f,0x38,0x00;
+ push @opcode,0xc0|($2&7)|(($1&7)<<3); # ModR/M
+ printf "\t.byte\t%s\n",join(',',@opcode);
+ } else {
+ printf "\tpshufb\t%s\n",join(',',@_);
+ }
+} if ($gas);
+
if ($nasm) {
print <<___;
default rel
my $insn;
if ($gas) {
$insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
+ @args = map($_->out($sz),@args);
+ my $asm = eval("\$$insn");
+ if (ref($asm) eq 'CODE') { &$asm(@args); }
+ else { printf "\t%s\t%s",$insn,join(",",@args); }
} else {
$insn = $opcode->out();
+ foreach (@args) {
+ my $arg = $_->out();
+ if ($arg =~ /xmm/) { $insn.=$sz; $sz="o"; last; }
+ if ($arg =~ /mm/) { $insn.=$sz; $sz="q"; last; }
+ }
@args = reverse(@args);
undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
+ printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
}
- for (@args) { $_ = $_->out($sz); }
- printf "\t%s\t%s", $insn, join(",",@args);
} else {
printf "\t%s",$opcode->out();
}
# CONTEXT.R14 232
# CONTEXT.R15 240
# CONTEXT.Rip 248
+# CONTEXT.Xmm6 512
# sizeof(CONTEXT) 1232
# DISPATCHER_CONTEXT.ControlPc 0
# DISPATCHER_CONTEXT.ImageBase 8
projects / openssl.git / blobdiff