--- /dev/null
+#!/usr/bin/env perl
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+
+# June 2011
+#
+# This is RC4+MD5 "stitch" implementation. The idea, as spelled in
+# http://download.intel.com/design/intarch/papers/323686.pdf, is that
+# since both algorithms exhibit instruction-level parallelism, ILP,
+# below theoretical maximum, interleaving them would allow to utilize
+# processor resources better and achieve better performance. RC4
+# instruction sequence is virtually identical to rc4-x86_64.pl, which
+# is heavily based on submission by Maxim Perminov, Maxim Locktyukhin
+# and Jim Guilford of Intel. MD5 is fresh implementation aiming to
+# minimize register usage, which was used as "main thread" with RC4
+# weaved into it, one RC4 round per one MD5 round. In addition to the
+# stiched subroutine the script can generate standalone replacement
+# md5_block_asm_data_order and RC4. Below are performance numbers in
+# cycles per processed byte, less is better, for these the standalone
+# subroutines, sum of them, and stitched one:
+#
+# RC4 MD5 RC4+MD5 stitch gain
+# Opteron 6.5(*) 5.4 11.9 7.0 +70%(*)
+# Core2 6.5 5.8 12.3 7.7 +60%
+# Westmere 4.3 5.2 9.5 7.0 +36%
+# Sandy Bridge 4.2 5.5 9.7 6.8 +43%
+# Atom 9.3 6.5 15.8 11.1 +42%
+#
+# (*) rc4-x86_64.pl delivers 5.3 on Opteron, so real improvement
+# is +53%...
+
+my ($rc4,$md5)=(1,1); # what to generate?
+my $D="#" if (!$md5); # if set to "#", MD5 is stitched into RC4(),
+ # but its result is discarded. Idea here is
+ # to be able to use 'openssl speed rc4' for
+ # benchmarking the stitched subroutine...
+
+my $flavour = shift;
+my $output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+my $win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; my $dir=$1; my $xlate;
+( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+die "can't locate x86_64-xlate.pl";
+
+open OUT,"| \"$^X\" $xlate $flavour $output";
+*STDOUT=*OUT;
+
+my ($dat,$in0,$out,$ctx,$inp,$len, $func,$nargs);
+
+if ($rc4 && !$md5) {
+ ($dat,$len,$in0,$out) = ("%rdi","%rsi","%rdx","%rcx");
+ $func="RC4"; $nargs=4;
+} elsif ($md5 && !$rc4) {
+ ($ctx,$inp,$len) = ("%rdi","%rsi","%rdx");
+ $func="md5_block_asm_data_order"; $nargs=3;
+} else {
+ ($dat,$in0,$out,$ctx,$inp,$len) = ("%rdi","%rsi","%rdx","%rcx","%r8","%r9");
+ $func="rc4_md5_enc"; $nargs=6;
+ # void rc4_md5_enc(
+ # RC4_KEY *key, #
+ # const void *in0, # RC4 input
+ # void *out, # RC4 output
+ # MD5_CTX *ctx, #
+ # const void *inp, # MD5 input
+ # size_t len); # number of 64-byte blocks
+}
+
+my @K=( 0xd76aa478,0xe8c7b756,0x242070db,0xc1bdceee,
+ 0xf57c0faf,0x4787c62a,0xa8304613,0xfd469501,
+ 0x698098d8,0x8b44f7af,0xffff5bb1,0x895cd7be,
+ 0x6b901122,0xfd987193,0xa679438e,0x49b40821,
+
+ 0xf61e2562,0xc040b340,0x265e5a51,0xe9b6c7aa,
+ 0xd62f105d,0x02441453,0xd8a1e681,0xe7d3fbc8,
+ 0x21e1cde6,0xc33707d6,0xf4d50d87,0x455a14ed,
+ 0xa9e3e905,0xfcefa3f8,0x676f02d9,0x8d2a4c8a,
+
+ 0xfffa3942,0x8771f681,0x6d9d6122,0xfde5380c,
+ 0xa4beea44,0x4bdecfa9,0xf6bb4b60,0xbebfbc70,
+ 0x289b7ec6,0xeaa127fa,0xd4ef3085,0x04881d05,
+ 0xd9d4d039,0xe6db99e5,0x1fa27cf8,0xc4ac5665,
+
+ 0xf4292244,0x432aff97,0xab9423a7,0xfc93a039,
+ 0x655b59c3,0x8f0ccc92,0xffeff47d,0x85845dd1,
+ 0x6fa87e4f,0xfe2ce6e0,0xa3014314,0x4e0811a1,
+ 0xf7537e82,0xbd3af235,0x2ad7d2bb,0xeb86d391 );
+
+my @V=("%r8d","%r9d","%r10d","%r11d"); # MD5 registers
+my $tmp="%r12d";
+
+my @XX=("%rbp","%rsi"); # RC4 registers
+my @TX=("%rax","%rbx");
+my $YY="%rcx";
+my $TY="%rdx";
+
+my $MOD=32; # 16, 32 or 64
+
+$code.=<<___;
+.text
+.align 16
+
+.globl $func
+.type $func,\@function,$nargs
+$func:
+ cmp \$0,$len
+ je .Labort
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ sub \$40,%rsp
+.Lbody:
+___
+if ($rc4) {
+$code.=<<___;
+$D#md5# mov $ctx,%r11 # reassign arguments
+ mov $len,%r12
+ mov $in0,%r13
+ mov $out,%r14
+$D#md5# mov $inp,%r15
+___
+ $ctx="%r11" if ($md5); # reassign arguments
+ $len="%r12";
+ $in0="%r13";
+ $out="%r14";
+ $inp="%r15" if ($md5);
+ $inp=$in0 if (!$md5);
+$code.=<<___;
+ xor $XX[0],$XX[0]
+ xor $YY,$YY
+
+ lea 8($dat),$dat
+ mov -8($dat),$XX[0]#b
+ mov -4($dat),$YY#b
+
+ inc $XX[0]#b
+ sub $in0,$out
+ movl ($dat,$XX[0],4),$TX[0]#d
+___
+$code.=<<___ if (!$md5);
+ xor $TX[1],$TX[1]
+ test \$-128,$len
+ jz .Loop1
+ sub $XX[0],$TX[1]
+ and \$`$MOD-1`,$TX[1]
+ jz .Loop${MOD}_is_hot
+ sub $TX[1],$len
+.Loop${MOD}_warmup:
+ add $TX[0]#b,$YY#b
+ movl ($dat,$YY,4),$TY#d
+ movl $TX[0]#d,($dat,$YY,4)
+ movl $TY#d,($dat,$XX[0],4)
+ add $TY#b,$TX[0]#b
+ inc $XX[0]#b
+ movl ($dat,$TX[0],4),$TY#d
+ movl ($dat,$XX[0],4),$TX[0]#d
+ xorb ($in0),$TY#b
+ movb $TY#b,($out,$in0)
+ lea 1($in0),$in0
+ dec $TX[1]
+ jnz .Loop${MOD}_warmup
+
+ mov $YY,$TX[1]
+ xor $YY,$YY
+ mov $TX[1]#b,$YY#b
+
+.Loop${MOD}_is_hot:
+ mov $len,32(%rsp) # save original $len
+ shr \$6,$len # number of 64-byte blocks
+___
+ if ($D && !$md5) { # stitch in dummy MD5
+ $md5=1;
+ $ctx="%r11";
+ $inp="%r15";
+ $code.=<<___;
+ mov %rsp,$ctx
+ mov $in0,$inp
+___
+ }
+}
+$code.=<<___;
+#rc4# add $TX[0]#b,$YY#b
+#rc4# lea ($dat,$XX[0],4),$XX[1]
+ shl \$6,$len
+ add $inp,$len # pointer to the end of input
+ mov $len,16(%rsp)
+
+#md5# mov $ctx,24(%rsp) # save pointer to MD5_CTX
+#md5# mov 0*4($ctx),$V[0] # load current hash value from MD5_CTX
+#md5# mov 1*4($ctx),$V[1]
+#md5# mov 2*4($ctx),$V[2]
+#md5# mov 3*4($ctx),$V[3]
+ jmp .Loop
+
+.align 16
+.Loop:
+#md5# mov $V[0],0*4(%rsp) # put aside current hash value
+#md5# mov $V[1],1*4(%rsp)
+#md5# mov $V[2],2*4(%rsp)
+#md5# mov $V[3],$tmp # forward reference
+#md5# mov $V[3],3*4(%rsp)
+___
+
+sub R0 {
+ my ($i,$a,$b,$c,$d)=@_;
+ my @rot0=(7,12,17,22);
+ my $j=$i%16;
+ my $k=$i%$MOD;
+ my $xmm="%xmm".($j&1);
+ $code.=" movdqu ($in0),%xmm2\n" if ($rc4 && $j==15);
+ $code.=" add \$$MOD,$XX[0]#b\n" if ($rc4 && $j==15 && $k==$MOD-1);
+ $code.=" pxor $xmm,$xmm\n" if ($rc4 && $j<=1);
+ $code.=<<___;
+#rc4# movl ($dat,$YY,4),$TY#d
+#md5# xor $c,$tmp
+#rc4# movl $TX[0]#d,($dat,$YY,4)
+#md5# and $b,$tmp
+#md5# add 4*`$j`($inp),$a
+#rc4# add $TY#b,$TX[0]#b
+#rc4# movl `4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5# add \$$K[$i],$a
+#md5# xor $d,$tmp
+#rc4# movz $TX[0]#b,$TX[0]#d
+#rc4# movl $TY#d,4*$k($XX[1])
+#md5# add $tmp,$a
+#rc4# add $TX[1]#b,$YY#b
+#md5# rol \$$rot0[$j%4],$a
+#md5# mov `$j==15?"$b":"$c"`,$tmp # forward reference
+#rc4# pinsrw \$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5# add $b,$a
+___
+ $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+ mov $YY,$XX[1]
+ xor $YY,$YY # keyword to partial register
+ mov $XX[1]#b,$YY#b
+ lea ($dat,$XX[0],4),$XX[1]
+___
+ $code.=<<___ if ($rc4 && $j==15);
+ psllq \$8,%xmm1
+ pxor %xmm0,%xmm2
+ pxor %xmm1,%xmm2
+___
+}
+sub R1 {
+ my ($i,$a,$b,$c,$d)=@_;
+ my @rot1=(5,9,14,20);
+ my $j=$i%16;
+ my $k=$i%$MOD;
+ my $xmm="%xmm".($j&1);
+ $code.=" movdqu 16($in0),%xmm3\n" if ($rc4 && $j==15);
+ $code.=" add \$$MOD,$XX[0]#b\n" if ($rc4 && $j==15 && $k==$MOD-1);
+ $code.=" pxor $xmm,$xmm\n" if ($rc4 && $j<=1);
+ $code.=<<___;
+#rc4# movl ($dat,$YY,4),$TY#d
+#md5# xor $b,$tmp
+#rc4# movl $TX[0]#d,($dat,$YY,4)
+#md5# and $d,$tmp
+#md5# add 4*`((1+5*$j)%16)`($inp),$a
+#rc4# add $TY#b,$TX[0]#b
+#rc4# movl `4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5# add \$$K[$i],$a
+#md5# xor $c,$tmp
+#rc4# movz $TX[0]#b,$TX[0]#d
+#rc4# movl $TY#d,4*$k($XX[1])
+#md5# add $tmp,$a
+#rc4# add $TX[1]#b,$YY#b
+#md5# rol \$$rot1[$j%4],$a
+#md5# mov `$j==15?"$c":"$b"`,$tmp # forward reference
+#rc4# pinsrw \$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5# add $b,$a
+___
+ $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+ mov $YY,$XX[1]
+ xor $YY,$YY # keyword to partial register
+ mov $XX[1]#b,$YY#b
+ lea ($dat,$XX[0],4),$XX[1]
+___
+ $code.=<<___ if ($rc4 && $j==15);
+ psllq \$8,%xmm1
+ pxor %xmm0,%xmm3
+ pxor %xmm1,%xmm3
+___
+}
+sub R2 {
+ my ($i,$a,$b,$c,$d)=@_;
+ my @rot2=(4,11,16,23);
+ my $j=$i%16;
+ my $k=$i%$MOD;
+ my $xmm="%xmm".($j&1);
+ $code.=" movdqu 32($in0),%xmm4\n" if ($rc4 && $j==15);
+ $code.=" add \$$MOD,$XX[0]#b\n" if ($rc4 && $j==15 && $k==$MOD-1);
+ $code.=" pxor $xmm,$xmm\n" if ($rc4 && $j<=1);
+ $code.=<<___;
+#rc4# movl ($dat,$YY,4),$TY#d
+#md5# xor $c,$tmp
+#rc4# movl $TX[0]#d,($dat,$YY,4)
+#md5# xor $b,$tmp
+#md5# add 4*`((5+3*$j)%16)`($inp),$a
+#rc4# add $TY#b,$TX[0]#b
+#rc4# movl `4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5# add \$$K[$i],$a
+#rc4# movz $TX[0]#b,$TX[0]#d
+#md5# add $tmp,$a
+#rc4# movl $TY#d,4*$k($XX[1])
+#rc4# add $TX[1]#b,$YY#b
+#md5# rol \$$rot2[$j%4],$a
+#md5# mov `$j==15?"\\\$-1":"$c"`,$tmp # forward reference
+#rc4# pinsrw \$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5# add $b,$a
+___
+ $code.=<<___ if ($rc4 && $j==15 && $k==$MOD-1);
+ mov $YY,$XX[1]
+ xor $YY,$YY # keyword to partial register
+ mov $XX[1]#b,$YY#b
+ lea ($dat,$XX[0],4),$XX[1]
+___
+ $code.=<<___ if ($rc4 && $j==15);
+ psllq \$8,%xmm1
+ pxor %xmm0,%xmm4
+ pxor %xmm1,%xmm4
+___
+}
+sub R3 {
+ my ($i,$a,$b,$c,$d)=@_;
+ my @rot3=(6,10,15,21);
+ my $j=$i%16;
+ my $k=$i%$MOD;
+ my $xmm="%xmm".($j&1);
+ $code.=" movdqu 48($in0),%xmm5\n" if ($rc4 && $j==15);
+ $code.=" add \$$MOD,$XX[0]#b\n" if ($rc4 && $j==15 && $k==$MOD-1);
+ $code.=" pxor $xmm,$xmm\n" if ($rc4 && $j<=1);
+ $code.=<<___;
+#rc4# movl ($dat,$YY,4),$TY#d
+#md5# xor $d,$tmp
+#rc4# movl $TX[0]#d,($dat,$YY,4)
+#md5# or $b,$tmp
+#md5# add 4*`((7*$j)%16)`($inp),$a
+#rc4# add $TY#b,$TX[0]#b
+#rc4# movl `4*(($k+1)%$MOD)`(`$k==$MOD-1?"$dat,$XX[0],4":"$XX[1]"`),$TX[1]#d
+#md5# add \$$K[$i],$a
+#rc4# movz $TX[0]#b,$TX[0]#d
+#md5# xor $c,$tmp
+#rc4# movl $TY#d,4*$k($XX[1])
+#md5# add $tmp,$a
+#rc4# add $TX[1]#b,$YY#b
+#md5# rol \$$rot3[$j%4],$a
+#md5# mov \$-1,$tmp # forward reference
+#rc4# pinsrw \$`($j>>1)&7`,($dat,$TX[0],4),$xmm\n
+#md5# add $b,$a
+___
+ $code.=<<___ if ($rc4 && $j==15);
+ mov $XX[0],$XX[1]
+ xor $XX[0],$XX[0] # keyword to partial register
+ mov $XX[1]#b,$XX[0]#b
+ mov $YY,$XX[1]
+ xor $YY,$YY # keyword to partial register
+ mov $XX[1]#b,$YY#b
+ lea ($dat,$XX[0],4),$XX[1]
+ psllq \$8,%xmm1
+ pxor %xmm0,%xmm5
+ pxor %xmm1,%xmm5
+___
+}
+
+my $i=0;
+for(;$i<16;$i++) { R0($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<32;$i++) { R1($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<48;$i++) { R2($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+for(;$i<64;$i++) { R3($i,@V); unshift(@V,pop(@V)); push(@TX,shift(@TX)); }
+
+$code.=<<___;
+#md5# add 0*4(%rsp),$V[0] # accumulate hash value
+#md5# add 1*4(%rsp),$V[1]
+#md5# add 2*4(%rsp),$V[2]
+#md5# add 3*4(%rsp),$V[3]
+
+#rc4# movdqu %xmm2,($out,$in0) # write RC4 output
+#rc4# movdqu %xmm3,16($out,$in0)
+#rc4# movdqu %xmm4,32($out,$in0)
+#rc4# movdqu %xmm5,48($out,$in0)
+#md5# lea 64($inp),$inp
+#rc4# lea 64($in0),$in0
+ cmp 16(%rsp),$inp # are we done?
+ jb .Loop
+
+#md5# mov 24(%rsp),$len # restore pointer to MD5_CTX
+#rc4# sub $TX[0]#b,$YY#b # correct $YY
+#md5# mov $V[0],0*4($len) # write MD5_CTX
+#md5# mov $V[1],1*4($len)
+#md5# mov $V[2],2*4($len)
+#md5# mov $V[3],3*4($len)
+___
+$code.=<<___ if ($rc4 && (!$md5 || $D));
+ mov 32(%rsp),$len # restore original $len
+ and \$63,$len # remaining bytes
+ jnz .Loop1
+ jmp .Ldone
+
+.align 16
+.Loop1:
+ add $TX[0]#b,$YY#b
+ movl ($dat,$YY,4),$TY#d
+ movl $TX[0]#d,($dat,$YY,4)
+ movl $TY#d,($dat,$XX[0],4)
+ add $TY#b,$TX[0]#b
+ inc $XX[0]#b
+ movl ($dat,$TX[0],4),$TY#d
+ movl ($dat,$XX[0],4),$TX[0]#d
+ xorb ($in0),$TY#b
+ movb $TY#b,($out,$in0)
+ lea 1($in0),$in0
+ dec $len
+ jnz .Loop1
+
+.Ldone:
+___
+$code.=<<___;
+#rc4# sub \$1,$XX[0]#b
+#rc4# movl $XX[0]#d,-8($dat)
+#rc4# movl $YY#d,-4($dat)
+
+ mov 40(%rsp),%r15
+ mov 48(%rsp),%r14
+ mov 56(%rsp),%r13
+ mov 64(%rsp),%r12
+ mov 72(%rsp),%rbp
+ mov 80(%rsp),%rbx
+ lea 88(%rsp),%rsp
+.Lepilogue:
+.Labort:
+ ret
+.size $func,.-$func
+___
+
+if ($rc4 && $D) { # sole purpose of this section is to provide
+ # option to use the generated module as drop-in
+ # replacement for rc4-x86_64.pl for debugging
+ # and testing purposes...
+my ($idx,$ido)=("%r8","%r9");
+my ($dat,$len,$inp)=("%rdi","%rsi","%rdx");
+
+$code.=<<___;
+.globl RC4_set_key
+.type RC4_set_key,\@function,3
+.align 16
+RC4_set_key:
+ lea 8($dat),$dat
+ lea ($inp,$len),$inp
+ neg $len
+ mov $len,%rcx
+ xor %eax,%eax
+ xor $ido,$ido
+ xor %r10,%r10
+ xor %r11,%r11
+ jmp .Lw1stloop
+
+.align 16
+.Lw1stloop:
+ mov %eax,($dat,%rax,4)
+ add \$1,%al
+ jnc .Lw1stloop
+
+ xor $ido,$ido
+ xor $idx,$idx
+.align 16
+.Lw2ndloop:
+ mov ($dat,$ido,4),%r10d
+ add ($inp,$len,1),$idx#b
+ add %r10b,$idx#b
+ add \$1,$len
+ mov ($dat,$idx,4),%r11d
+ cmovz %rcx,$len
+ mov %r10d,($dat,$idx,4)
+ mov %r11d,($dat,$ido,4)
+ add \$1,$ido#b
+ jnc .Lw2ndloop
+
+ xor %eax,%eax
+ mov %eax,-8($dat)
+ mov %eax,-4($dat)
+ ret
+.size RC4_set_key,.-RC4_set_key
+
+.globl RC4_options
+.type RC4_options,\@abi-omnipotent
+.align 16
+RC4_options:
+ lea .Lopts(%rip),%rax
+ ret
+.align 64
+.Lopts:
+.asciz "rc4(64x,int)"
+.align 64
+.size RC4_options,.-RC4_options
+___
+}
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+my $rec="%rcx";
+my $frame="%rdx";
+my $context="%r8";
+my $disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ lea .Lbody(%rip),%r10
+ cmp %r10,%rbx # context->Rip<.Lbody
+ jb .Lin_prologue
+
+ mov 152($context),%rax # pull context->Rsp
+
+ lea .Lepilogue(%rip),%r10
+ cmp %r10,%rbx # context->Rip>=.Lepilogue
+ jae .Lin_prologue
+
+ mov 40(%rax),%r15
+ mov 48(%rax),%r14
+ mov 56(%rax),%r13
+ mov 64(%rax),%r12
+ mov 72(%rax),%rbp
+ mov 80(%rax),%rbx
+ lea 88(%rax),%rax
+
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+ mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R12
+ mov %r14,232($context) # restore context->R14
+ mov %r15,240($context) # restore context->R15
+
+.Lin_prologue:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %rcx,%rcx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+ pop %rdi
+ pop %rsi
+ ret
+.size se_handler,.-se_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_$func
+ .rva .LSEH_end_$func
+ .rva .LSEH_info_$func
+
+.section .xdata
+.align 8
+.LSEH_info_$func:
+ .byte 9,0,0,0
+ .rva se_handler
+___
+}
+
+sub reg_part {
+my ($reg,$conv)=@_;
+ if ($reg =~ /%r[0-9]+/) { $reg .= $conv; }
+ elsif ($conv eq "b") { $reg =~ s/%[er]([^x]+)x?/%$1l/; }
+ elsif ($conv eq "w") { $reg =~ s/%[er](.+)/%$1/; }
+ elsif ($conv eq "d") { $reg =~ s/%[er](.+)/%e$1/; }
+ return $reg;
+}
+
+$code =~ s/(%[a-z0-9]+)#([bwd])/reg_part($1,$2)/gem;
+$code =~ s/\`([^\`]*)\`/eval $1/gem;
+$code =~ s/pinsrw\s+\$0,/movd /gm;
+
+$code =~ s/#md5#//gm if ($md5);
+$code =~ s/#rc4#//gm if ($rc4);
+
+print $code;
+
+close STDOUT;
projects / cassiopeia.git / blobdiff