# 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 $output = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-{ my ($stddev,$stdino,@junk)=stat(STDOUT);
- my ($outdev,$outino,@junk)=stat($output);
-
- open STDOUT,">$output" || die "can't open $output: $!"
- if ($stddev!=$outdev || $stdino!=$outino);
-}
+open STDOUT,">$output" || die "can't open $output: $!"
+ if (defined($output));
my $gas=1; $gas=0 if ($output =~ /\.asm$/);
my $elf=1; $elf=0 if (!$gas);
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 -`;
+ $prefix =~ s|\R$||; # Better chomp
+ }
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=""; }
$line = substr($line,@+[0]); $line =~ s/^\s+//;
undef $self->{sz};
- if ($self->{op} =~ /^(movz)b.*/) { # movz is pain...
+ if ($self->{op} =~ /^(movz)x?([bw]).*/) { # movz is pain...
$self->{op} = $1;
- $self->{sz} = "b";
+ $self->{sz} = $2;
} elsif ($self->{op} =~ /call|jmp/) {
- $self->{sz} = ""
+ $self->{sz} = "";
+ } elsif ($self->{op} =~ /^p/ && $' !~ /^(ush|op|insrw)/) { # SSEn
+ $self->{sz} = "";
+ } elsif ($self->{op} =~ /^v/) { # VEX
+ $self->{sz} = "";
+ } elsif ($self->{op} =~ /mov[dq]/ && $line =~ /%xmm/) {
+ $self->{sz} = "";
} elsif ($self->{op} =~ /([a-z]{3,})([qlwb])$/) {
$self->{op} = $1;
$self->{sz} = $2;
} elsif ($self->{op} =~ /^(pop|push)f/) {
$self->{op} .= $self->{sz};
} elsif ($self->{op} eq "call" && $current_segment eq ".CRT\$XCU") {
- $self->{op} = "ALIGN\t8\n\tDQ";
+ $self->{op} = "\tDQ";
}
$self->{op};
}
if ($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/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
+ my $value = $self->{value};
+ $value =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
+ if ($value =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg) {
+ $self->{value} = $value;
+ }
sprintf "\$%s",$self->{value};
} else {
$self->{value} =~ s/(0b[0-1]+)/oct($1)/eig;
$self->{index} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
$self->{base} =~ s/^[er](.?[0-9xpi])[d]?$/r\1/;
+ # Solaris /usr/ccs/bin/as can't handle multiplications
+ # in $self->{label}, new gas requires sign extension...
+ use integer;
+ $self->{label} =~ s/(?<![\w\$\.])(0x?[0-9a-f]+)/oct($1)/egi;
+ $self->{label} =~ s/\b([0-9]+\s*[\*\/\%]\s*[0-9]+)\b/eval($1)/eg;
+ $self->{label} =~ s/\b([0-9]+)\b/$1<<32>>32/eg;
+
+ if (!$self->{label} && $self->{index} && $self->{scale}==1 &&
+ $self->{base} =~ /(rbp|r13)/) {
+ $self->{base} = $self->{index}; $self->{index} = $1;
+ }
+
if ($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;
- $self->{label} =~ s/([0-9]+\s*[\*\/\%]\s*[0-9]+)/eval($1)/eg;
$self->{label} =~ s/^___imp_/__imp__/ if ($flavour eq "mingw64");
if (defined($self->{index})) {
- sprintf "%s%s(%%%s,%%%s,%d)",$self->{asterisk},
- $self->{label},$self->{base},
+ sprintf "%s%s(%s,%%%s,%d)",$self->{asterisk},
+ $self->{label},
+ $self->{base}?"%$self->{base}":"",
$self->{index},$self->{scale};
} else {
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", d=>"DWORD$PTR",
+ q=>"QWORD$PTR", o=>"OWORD$PTR",
+ x=>"XMMWORD$PTR", y=>"YMMWORD$PTR", z=>"ZMMWORD$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});
+
+ ($self->{asterisk}) && ($sz="q") ||
+ (opcode->mnemonic() =~ /^v?mov([qd])$/) && ($sz=$1) ||
+ (opcode->mnemonic() =~ /^v?pinsr([qdwb])$/) && ($sz=$1) ||
+ (opcode->mnemonic() =~ /^vpbroadcast([qdwb])$/) && ($sz=$1) ||
+ (opcode->mnemonic() =~ /^vinsert[fi]128$/) && ($sz="x");
if (defined($self->{index})) {
- sprintf "%s[%s%s*%d+%s]",$szmap{$sz},
+ sprintf "%s[%s%s*%d%s]",$szmap{$sz},
$self->{label}?"$self->{label}+":"",
$self->{index},$self->{scale},
- $self->{base};
+ $self->{base}?"+$self->{base}":"";
} elsif ($self->{base} eq "rip") {
sprintf "%s[%s]",$szmap{$sz},$self->{label};
} else {
}
{ package register; # pick up registers, which start with %.
sub re {
- my $class = shift; # muliple instances...
+ my $class = shift; # multiple instances...
my $self = {};
local *line = shift;
undef $ret;
}
sub out {
my $self = shift;
- if ($nasm && opcode->mnemonic()=~m/^j/) {
+ if ($nasm && opcode->mnemonic()=~m/^j(?![re]cxz)/) {
"NEAR ".$self->{value};
} else {
$self->{value};
}
} elsif ($dir =~ /\.(text|data)/) {
$current_segment=".$1";
+ } elsif ($dir =~ /\.hidden/) {
+ if ($flavour eq "macosx") { $self->{value} = ".private_extern\t$prefix$line"; }
+ elsif ($flavour eq "mingw64") { $self->{value} = ""; }
+ } elsif ($dir =~ /\.comm/) {
+ $self->{value} = "$dir\t$prefix$line";
+ $self->{value} =~ s|,([0-9]+),([0-9]+)$|",$1,".log($2)/log(2)|e if ($flavour eq "macosx");
}
$line = "";
return $self;
$v="$current_segment\tENDS\n" if ($current_segment);
$current_segment = ".text\$";
$v.="$current_segment\tSEGMENT ";
- $v.=$masm>=$masmref ? "ALIGN(64)" : "PAGE";
+ $v.=$masm>=$masmref ? "ALIGN(256)" : "PAGE";
$v.=" 'CODE'";
}
$self->{value} = $v;
if ($line=~/\.([px])data/) {
$v.=" rdata align=";
$v.=$1 eq "p"? 4 : 8;
+ } elsif ($line=~/\.CRT\$/i) {
+ $v.=" rdata align=8";
}
} else {
$v="$current_segment\tENDS\n" if ($current_segment);
if ($line=~/\.([px])data/) {
$v.=" READONLY";
$v.=" ALIGN(".($1 eq "p" ? 4 : 8).")" if ($masm>=$masmref);
+ } elsif ($line=~/\.CRT\$/i) {
+ $v.=" READONLY ";
+ $v.=$masm>=$masmref ? "ALIGN(8)" : "DWORD";
}
}
$current_segment = $line;
$self->{value}="${decor}SEH_end_$current_function->{name}:";
$self->{value}.=":\n" if($masm);
}
- $self->{value}.="$current_function->{name}\tENDP" if($masm);
+ $self->{value}.="$current_function->{name}\tENDP" if($masm && $current_function->{name});
undef $current_function;
}
last;
/\.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/^(0b[0-1]+)/oct($1)/eig;
$self->{value} .= &$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 ($#str>15) {
.join(",",@str) if (@str);
last;
};
+ /\.comm/ && do { my @str=split(/,\s*/,$line);
+ my $v=undef;
+ if ($nasm) {
+ $v.="common $prefix@str[0] @str[1]";
+ } else {
+ $v="$current_segment\tENDS\n" if ($current_segment);
+ $current_segment = "_DATA";
+ $v.="$current_segment\tSEGMENT\n";
+ $v.="COMM @str[0]:DWORD:".@str[1]/4;
+ }
+ $self->{value} = $v;
+ last;
+ };
}
$line = "";
}
}
}
+sub rex {
+ local *opcode=shift;
+ my ($dst,$src,$rex)=@_;
+
+ $rex|=0x04 if($dst>=8);
+ $rex|=0x01 if($src>=8);
+ push @opcode,($rex|0x40) if ($rex);
+}
+
+# older gas and ml64 don't handle SSE>2 instructions
+my %regrm = ( "%eax"=>0, "%ecx"=>1, "%edx"=>2, "%ebx"=>3,
+ "%esp"=>4, "%ebp"=>5, "%esi"=>6, "%edi"=>7 );
+
+my $movq = sub { # elderly gas can't handle inter-register movq
+ my $arg = shift;
+ my @opcode=(0x66);
+ if ($arg =~ /%xmm([0-9]+),\s*%r(\w+)/) {
+ my ($src,$dst)=($1,$2);
+ if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
+ rex(\@opcode,$src,$dst,0x8);
+ push @opcode,0x0f,0x7e;
+ push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
+ @opcode;
+ } elsif ($arg =~ /%r(\w+),\s*%xmm([0-9]+)/) {
+ my ($src,$dst)=($2,$1);
+ if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
+ rex(\@opcode,$src,$dst,0x8);
+ push @opcode,0x0f,0x6e;
+ push @opcode,0xc0|(($src&7)<<3)|($dst&7); # ModR/M
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $pextrd = sub {
+ if (shift =~ /\$([0-9]+),\s*%xmm([0-9]+),\s*(%\w+)/) {
+ my @opcode=(0x66);
+ $imm=$1;
+ $src=$2;
+ $dst=$3;
+ if ($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;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $pinsrd = sub {
+ if (shift =~ /\$([0-9]+),\s*(%\w+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ $imm=$1;
+ $src=$2;
+ $dst=$3;
+ if ($src =~ /%r([0-9]+)/) { $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;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $pshufb = sub {
+ if (shift =~ /%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ rex(\@opcode,$2,$1);
+ push @opcode,0x0f,0x38,0x00;
+ push @opcode,0xc0|($1&7)|(($2&7)<<3); # ModR/M
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $palignr = sub {
+ if (shift =~ /\$([0-9]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ rex(\@opcode,$3,$2);
+ push @opcode,0x0f,0x3a,0x0f;
+ push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
+ push @opcode,$1;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $pclmulqdq = sub {
+ if (shift =~ /\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x66);
+ rex(\@opcode,$3,$2);
+ push @opcode,0x0f,0x3a,0x44;
+ push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
+ my $c=$1;
+ push @opcode,$c=~/^0/?oct($c):$c;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $rdrand = sub {
+ if (shift =~ /%[er](\w+)/) {
+ my @opcode=();
+ my $dst=$1;
+ if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
+ rex(\@opcode,0,$1,8);
+ push @opcode,0x0f,0xc7,0xf0|($dst&7);
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $rdseed = sub {
+ if (shift =~ /%[er](\w+)/) {
+ my @opcode=();
+ my $dst=$1;
+ if ($dst !~ /[0-9]+/) { $dst = $regrm{"%e$dst"}; }
+ rex(\@opcode,0,$1,8);
+ push @opcode,0x0f,0xc7,0xf8|($dst&7);
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+sub rxb {
+ local *opcode=shift;
+ my ($dst,$src1,$src2,$rxb)=@_;
+
+ $rxb|=0x7<<5;
+ $rxb&=~(0x04<<5) if($dst>=8);
+ $rxb&=~(0x01<<5) if($src1>=8);
+ $rxb&=~(0x02<<5) if($src2>=8);
+ push @opcode,$rxb;
+}
+
+my $vprotd = sub {
+ if (shift =~ /\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x8f);
+ rxb(\@opcode,$3,$2,-1,0x08);
+ push @opcode,0x78,0xc2;
+ push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
+ my $c=$1;
+ push @opcode,$c=~/^0/?oct($c):$c;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
+my $vprotq = sub {
+ if (shift =~ /\$([x0-9a-f]+),\s*%xmm([0-9]+),\s*%xmm([0-9]+)/) {
+ my @opcode=(0x8f);
+ rxb(\@opcode,$3,$2,-1,0x08);
+ push @opcode,0x78,0xc3;
+ push @opcode,0xc0|($2&7)|(($3&7)<<3); # ModR/M
+ my $c=$1;
+ push @opcode,$c=~/^0/?oct($c):$c;
+ @opcode;
+ } else {
+ ();
+ }
+};
+
if ($nasm) {
print <<___;
default rel
+%define XMMWORD
+%define YMMWORD
+%define ZMMWORD
___
} elsif ($masm) {
print <<___;
OPTION DOTNAME
___
}
-while($line=<>) {
+while(defined($line=<>)) {
- chomp($line);
+ $line =~ s|\R$||; # Better chomp
$line =~ s|[#!].*$||; # 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
undef $label;
undef $opcode;
- undef $sz;
undef @args;
if ($label=label->re(\$line)) { print $label->out(); }
if (directive->re(\$line)) {
printf "%s",directive->out();
- } elsif ($opcode=opcode->re(\$line)) { ARGUMENT: while (1) {
+ } elsif ($opcode=opcode->re(\$line)) {
+ my $asm = eval("\$".$opcode->mnemonic());
+ undef @bytes;
+
+ if ((ref($asm) eq 'CODE') && scalar(@bytes=&$asm($line))) {
+ print $gas?".byte\t":"DB\t",join(',',@bytes),"\n";
+ next;
+ }
+
+ ARGUMENT: while (1) {
my $arg;
if ($arg=register->re(\$line)) { opcode->size($arg->size()); }
$line =~ s/^,\s*//;
} # ARGUMENT:
- $sz=opcode->size();
-
if ($#args>=0) {
my $insn;
+ my $sz=opcode->size();
+
if ($gas) {
$insn = $opcode->out($#args>=1?$args[$#args]->size():$sz);
+ @args = map($_->out($sz),@args);
+ printf "\t%s\t%s",$insn,join(",",@args);
} else {
$insn = $opcode->out();
- $insn .= $sz if (map($_->out() =~ /xmm|mmx/,@args));
+ foreach (@args) {
+ my $arg = $_->out();
+ # $insn.=$sz compensates for movq, pinsrw, ...
+ if ($arg =~ /^xmm[0-9]+$/) { $insn.=$sz; $sz="x" if(!$sz); last; }
+ if ($arg =~ /^ymm[0-9]+$/) { $insn.=$sz; $sz="y" if(!$sz); last; }
+ if ($arg =~ /^zmm[0-9]+$/) { $insn.=$sz; $sz="z" if(!$sz); last; }
+ if ($arg =~ /^mm[0-9]+$/) { $insn.=$sz; $sz="q" if(!$sz); last; }
+ }
@args = reverse(@args);
undef $sz if ($nasm && $opcode->mnemonic() eq "lea");
+ printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
}
- printf "\t%s\t%s",$insn,join(",",map($_->out($sz),@args));
} else {
printf "\t%s",$opcode->out();
}
# (#) Nth argument, volatile
#
# In Unix terms top of stack is argument transfer area for arguments
-# which could not be accomodated in registers. Or in other words 7th
+# which could not be accommodated in registers. Or in other words 7th
# [integer] argument resides at 8(%rsp) upon function entry point.
# 128 bytes above %rsp constitute a "red zone" which is not touched
# by signal handlers and can be used as temporal storage without
# CONTEXT.R14 232
# CONTEXT.R15 240
# CONTEXT.Rip 248
+# CONTEXT.Xmm6 512
# sizeof(CONTEXT) 1232
# DISPATCHER_CONTEXT.ControlPc 0
# DISPATCHER_CONTEXT.ImageBase 8
# .rva .LSEH_end_function
# .rva function_unwind_info
#
-# Reference to functon_unwind_info from .xdata segment is the anchor.
+# Reference to function_unwind_info from .xdata segment is the anchor.
# In case you wonder why references are 32-bit .rvas and not 64-bit
# .quads. References put into these two segments are required to be
# *relative* to the base address of the current binary module, a.k.a.
projects / openssl.git / blobdiff