-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the Apache License 2.0 (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
+
# require 'x86asm.pl';
-# &asm_init(<flavor>,"des-586.pl"[,$i386only]);
+# &asm_init(<flavor>[,$i386only]);
# &function_begin("foo");
# ...
# &function_end("foo");
# &asm_finish
+$out=();
+$i386=0;
+
# 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
sub ::AUTOLOAD
{ my $opcode = $AUTOLOAD;
- die "more than 2 arguments passed to $opcode" if ($#_>1);
+ die "more than 4 arguments passed to $opcode" if ($#_>3);
$opcode =~ s/.*:://;
if ($opcode =~ /^push/) { $stack+=4; }
&generic($opcode,@_) or die "undefined subroutine \&$AUTOLOAD";
}
-$out=();
-$i386=0;
-
sub ::emit
{ my $opcode=shift;
sub ::rotr { &ror(@_); }
sub ::exch { &xchg(@_); }
sub ::halt { &hlt; }
+sub ::movz { &movzx(@_); }
+sub ::pushf { &pushfd; }
+sub ::popf { &popfd; }
+
+# 3 argument instructions
+sub ::movq
+{ my($p1,$p2,$optimize)=@_;
+
+ if ($optimize && $p1=~/^mm[0-7]$/ && $p2=~/^mm[0-7]$/)
+ # movq between mmx registers can sink Intel CPUs
+ { &::pshufw($p1,$p2,0xe4); }
+ else
+ { &::generic("movq",@_); }
+}
+
+# SSE>2 instructions
+my %regrm = ( "eax"=>0, "ecx"=>1, "edx"=>2, "ebx"=>3,
+ "esp"=>4, "ebp"=>5, "esi"=>6, "edi"=>7 );
+sub ::pextrd
+{ my($dst,$src,$imm)=@_;
+ if ("$dst:$src" =~ /(e[a-dsd][ixp]):xmm([0-7])/)
+ { &::data_byte(0x66,0x0f,0x3a,0x16,0xc0|($2<<3)|$regrm{$1},$imm); }
+ else
+ { &::generic("pextrd",@_); }
+}
+
+sub ::pinsrd
+{ my($dst,$src,$imm)=@_;
+ if ("$dst:$src" =~ /xmm([0-7]):(e[a-dsd][ixp])/)
+ { &::data_byte(0x66,0x0f,0x3a,0x22,0xc0|($1<<3)|$regrm{$2},$imm); }
+ else
+ { &::generic("pinsrd",@_); }
+}
+
+sub ::pshufb
+{ my($dst,$src)=@_;
+ if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+ { &data_byte(0x66,0x0f,0x38,0x00,0xc0|($1<<3)|$2); }
+ else
+ { &::generic("pshufb",@_); }
+}
+
+sub ::palignr
+{ my($dst,$src,$imm)=@_;
+ if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+ { &::data_byte(0x66,0x0f,0x3a,0x0f,0xc0|($1<<3)|$2,$imm); }
+ else
+ { &::generic("palignr",@_); }
+}
+
+sub ::pclmulqdq
+{ my($dst,$src,$imm)=@_;
+ if ("$dst:$src" =~ /xmm([0-7]):xmm([0-7])/)
+ { &::data_byte(0x66,0x0f,0x3a,0x44,0xc0|($1<<3)|$2,$imm); }
+ else
+ { &::generic("pclmulqdq",@_); }
+}
+
+sub ::rdrand
+{ my ($dst)=@_;
+ if ($dst =~ /(e[a-dsd][ixp])/)
+ { &::data_byte(0x0f,0xc7,0xf0|$regrm{$dst}); }
+ else
+ { &::generic("rdrand",@_); }
+}
+sub ::rdseed
+{ my ($dst)=@_;
+ if ($dst =~ /(e[a-dsd][ixp])/)
+ { &::data_byte(0x0f,0xc7,0xf8|$regrm{$dst}); }
+ else
+ { &::generic("rdrand",@_); }
+}
+
+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;
+}
+
+sub ::vprotd
+{ my $args=join(',',@_);
+ if ($args =~ /xmm([0-7]),xmm([0-7]),([x0-9a-f]+)/)
+ { my @opcode=(0x8f);
+ rxb(\@opcode,$1,$2,-1,0x08);
+ push @opcode,0x78,0xc2;
+ push @opcode,0xc0|($2&7)|(($1&7)<<3); # ModR/M
+ my $c=$3;
+ push @opcode,$c=~/^0/?oct($c):$c;
+ &::data_byte(@opcode);
+ }
+ else
+ { &::generic("vprotd",@_); }
+}
+
+sub ::endbranch
+{
+ &::data_byte(0xf3,0x0f,0x1e,0xfb);
+}
+
+# label management
+$lbdecor="L"; # local label decoration, set by package
+$label="000";
+
+sub ::islabel # see is argument is a known label
+{ my $i;
+ foreach $i (values %label) { return $i if ($i eq $_[0]); }
+ $label{$_[0]}; # can be undef
+}
+
+sub ::label # instantiate a function-scope label
+{ if (!defined($label{$_[0]}))
+ { $label{$_[0]}="${lbdecor}${label}${_[0]}"; $label++; }
+ $label{$_[0]};
+}
+
+sub ::LABEL # instantiate a file-scope label
+{ $label{$_[0]}=$_[1] if (!defined($label{$_[0]}));
+ $label{$_[0]};
+}
+
+sub ::static_label { &::LABEL($_[0],$lbdecor.$_[0]); }
+
+sub ::set_label_B { push(@out,"@_:\n"); }
+sub ::set_label
+{ my $label=&::label($_[0]);
+ &::align($_[1]) if ($_[1]>1);
+ &::set_label_B($label);
+ $label;
+}
+
+sub ::wipe_labels # wipes function-scope labels
+{ foreach $i (keys %label)
+ { delete $label{$i} if ($label{$i} =~ /^\Q${lbdecor}\E[0-9]{3}/); }
+}
+
+# subroutine management
sub ::function_begin
{ &function_begin_B(@_);
$stack=4;
&pop("ebx");
&pop("ebp");
&ret();
- $stack=0;
&function_end_B(@_);
+ $stack=0;
+ &wipe_labels();
}
sub ::function_end_A
$stack+=16; # readjust esp as if we didn't pop anything
}
-sub ::asciz { foreach (@_) { &data_byte(unpack("C*",$_[0]),0); } }
+sub ::asciz
+{ my @str=unpack("C*",shift);
+ push @str,0;
+ while ($#str>15) {
+ &data_byte(@str[0..15]);
+ foreach (0..15) { shift @str; }
+ }
+ &data_byte(@str) if (@str);
+}
sub ::asm_finish
{ &file_end();
}
sub ::asm_init
-{ my ($type,$fn,$cpu)=@_;
+{ my ($type,$cpu)=@_;
- $filename=$fn;
$i386=$cpu;
- $elf=$cpp=$coff=$aout=$win32=$netware=$mwerks=0;
+ $elf=$cpp=$coff=$aout=$macosx=$win32=$mwerks=$android=0;
if (($type eq "elf"))
- { $elf=1; require "x86unix.pl"; }
+ { $elf=1; require "x86gas.pl"; }
+ elsif (($type eq "elf-1"))
+ { $elf=-1; require "x86gas.pl"; }
elsif (($type eq "a\.out"))
- { $aout=1; require "x86unix.pl"; }
+ { $aout=1; require "x86gas.pl"; }
elsif (($type eq "coff" or $type eq "gaswin"))
- { $coff=1; require "x86unix.pl"; }
+ { $coff=1; require "x86gas.pl"; }
elsif (($type eq "win32n"))
{ $win32=1; require "x86nasm.pl"; }
- elsif (($type eq "nw-nasm"))
- { $netware=1; require "x86nasm.pl"; }
- elsif (($type eq "nw-mwasm"))
- { $netware=1; $mwerks=1; require "x86nasm.pl"; }
+ elsif (($type eq "win32"))
+ { $win32=1; require "x86masm.pl"; }
+ elsif (($type eq "macosx"))
+ { $aout=1; $macosx=1; require "x86gas.pl"; }
+ elsif (($type eq "android"))
+ { $elf=1; $android=1; require "x86gas.pl"; }
else
{ print STDERR <<"EOF";
Pick one target type from
a.out - DJGPP, elder OpenBSD, etc.
coff - GAS/COFF such as Win32 targets
win32n - Windows 95/Windows NT NASM format
- nw-nasm - NetWare NASM format
- nw-mwasm- NetWare Metrowerks Assembler
+ macosx - Mac OS X
EOF
exit(1);
}
$pic=0;
for (@ARGV) { $pic=1 if (/\-[fK]PIC/i); }
- $filename =~ s/\.pl$//;
- &file($filename);
+ &file();
}
+sub ::hidden {}
+
1;
projects / openssl.git / blobdiff