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openssl/crypto/camellia/asm/cmll-x86_64.pl

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#!/usr/bin/env perl
# ====================================================================
# Copyright (c) 2008 Andy Polyakov <appro@openssl.org>
#
# This module may be used under the terms of either the GNU General
# Public License version 2 or later, the GNU Lesser General Public
# License version 2.1 or later, the Mozilla Public License version
# 1.1 or the BSD License. The exact terms of either license are
# distributed along with this module. For further details see
# http://www.openssl.org/~appro/camellia/.
# ====================================================================
# Performance in cycles per processed byte (less is better) in
# 'openssl speed ...' benchmark:
#
# AMD64 Core2 EM64T
# -evp camellia-128-ecb 16.7 21.0 22.7
# + over gcc 3.4.6 +25% +5% 0%
#
# camellia-128-cbc 15.7 20.4 21.1
#
# 128-bit key setup 128 216 205 cycles/key
# + over gcc 3.4.6 +54% +39% +15%
#
# Numbers in "+" rows represent performance improvement over compiler
# generated code. Key setup timings are impressive on AMD and Core2
# thanks to 64-bit operations being covertly deployed. Improvement on
# EM64T, pre-Core2 Intel x86_64 CPU, is not as impressive, because it
# apparently emulates some of 64-bit operations in [32-bit] microcode.
$flavour = shift;
$output = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${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;
sub hi() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1h/; $r; }
sub lo() { my $r=shift; $r =~ s/%[er]([a-d])x/%\1l/;
$r =~ s/%[er]([sd]i)/%\1l/;
$r =~ s/%(r[0-9]+)[d]?/%\1b/; $r; }
$t0="%eax";$t1="%ebx";$t2="%ecx";$t3="%edx";
@S=("%r8d","%r9d","%r10d","%r11d");
$i0="%esi";
$i1="%edi";
$Tbl="%rbp"; # size optimization
$inp="%r12";
$out="%r13";
$key="%r14";
$keyend="%r15";
$arg0d=$win64?"%ecx":"%edi";
# const unsigned int Camellia_SBOX[4][256];
# Well, sort of... Camellia_SBOX[0][] is interleaved with [1][],
# and [2][] - with [3][]. This is done to minimize code size.
$SBOX1_1110=0; # Camellia_SBOX[0]
$SBOX4_4404=4; # Camellia_SBOX[1]
$SBOX2_0222=2048; # Camellia_SBOX[2]
$SBOX3_3033=2052; # Camellia_SBOX[3]
sub Camellia_Feistel {
my $i=@_[0];
my $seed=defined(@_[1])?@_[1]:0;
my $scale=$seed<0?-8:8;
my $j=($i&1)*2;
my ($s0,$s1,$s2,$s3)=(@S[($j)%4],@S[($j+1)%4],@S[($j+2)%4],@S[($j+3)%4]);
$code.=<<___;
xor $s0,$t0 # t0^=key[0]
xor $s1,$t1 # t1^=key[1]
movz `&hi("$t0")`,$i0 # (t0>>8)&0xff
movz `&lo("$t1")`,$i1 # (t1>>0)&0xff
mov $SBOX3_3033($Tbl,$i0,8),$t3 # t3=SBOX3_3033[0]
mov $SBOX1_1110($Tbl,$i1,8),$t2 # t2=SBOX1_1110[1]
movz `&lo("$t0")`,$i0 # (t0>>0)&0xff
shr \$16,$t0
movz `&hi("$t1")`,$i1 # (t1>>8)&0xff
xor $SBOX4_4404($Tbl,$i0,8),$t3 # t3^=SBOX4_4404[0]
shr \$16,$t1
xor $SBOX4_4404($Tbl,$i1,8),$t2 # t2^=SBOX4_4404[1]
movz `&hi("$t0")`,$i0 # (t0>>24)&0xff
movz `&lo("$t1")`,$i1 # (t1>>16)&0xff
xor $SBOX1_1110($Tbl,$i0,8),$t3 # t3^=SBOX1_1110[0]
xor $SBOX3_3033($Tbl,$i1,8),$t2 # t2^=SBOX3_3033[1]
movz `&lo("$t0")`,$i0 # (t0>>16)&0xff
movz `&hi("$t1")`,$i1 # (t1>>24)&0xff
xor $SBOX2_0222($Tbl,$i0,8),$t3 # t3^=SBOX2_0222[0]
xor $SBOX2_0222($Tbl,$i1,8),$t2 # t2^=SBOX2_0222[1]
mov `$seed+($i+1)*$scale`($key),$t1 # prefetch key[i+1]
mov `$seed+($i+1)*$scale+4`($key),$t0
xor $t3,$t2 # t2^=t3
ror \$8,$t3 # t3=RightRotate(t3,8)
xor $t2,$s2
xor $t2,$s3
xor $t3,$s3
___
}
# void Camellia_EncryptBlock_Rounds(
# int grandRounds,
# const Byte plaintext[],
# const KEY_TABLE_TYPE keyTable,
# Byte ciphertext[])
$code=<<___;
.text
# V1.x API
.globl Camellia_EncryptBlock
.type Camellia_EncryptBlock,\@abi-omnipotent
.align 16
Camellia_EncryptBlock:
movl \$128,%eax
subl $arg0d,%eax
movl \$3,$arg0d
adcl \$0,$arg0d # keyBitLength==128?3:4
jmp .Lenc_rounds
.size Camellia_EncryptBlock,.-Camellia_EncryptBlock
# V2
.globl Camellia_EncryptBlock_Rounds
.type Camellia_EncryptBlock_Rounds,\@function,4
.align 16
.Lenc_rounds:
Camellia_EncryptBlock_Rounds:
push %rbx
push %rbp
push %r13
push %r14
push %r15
.Lenc_prologue:
#mov %rsi,$inp # put away arguments
mov %rcx,$out
mov %rdx,$key
shl \$6,%edi # process grandRounds
lea .LCamellia_SBOX(%rip),$Tbl
lea ($key,%rdi),$keyend
mov 0(%rsi),@S[0] # load plaintext
mov 4(%rsi),@S[1]
mov 8(%rsi),@S[2]
bswap @S[0]
mov 12(%rsi),@S[3]
bswap @S[1]
bswap @S[2]
bswap @S[3]
call _x86_64_Camellia_encrypt
bswap @S[0]
bswap @S[1]
bswap @S[2]
mov @S[0],0($out)
bswap @S[3]
mov @S[1],4($out)
mov @S[2],8($out)
mov @S[3],12($out)
mov 0(%rsp),%r15
mov 8(%rsp),%r14
mov 16(%rsp),%r13
mov 24(%rsp),%rbp
mov 32(%rsp),%rbx
lea 40(%rsp),%rsp
.Lenc_epilogue:
ret
.size Camellia_EncryptBlock_Rounds,.-Camellia_EncryptBlock_Rounds
.type _x86_64_Camellia_encrypt,\@abi-omnipotent
.align 16
_x86_64_Camellia_encrypt:
xor 0($key),@S[1]
xor 4($key),@S[0] # ^=key[0-3]
xor 8($key),@S[3]
xor 12($key),@S[2]
.align 16
.Leloop:
mov 16($key),$t1 # prefetch key[4-5]
mov 20($key),$t0
___
for ($i=0;$i<6;$i++) { Camellia_Feistel($i,16); }
$code.=<<___;
lea 16*4($key),$key
cmp $keyend,$key
mov 8($key),$t3 # prefetch key[2-3]
mov 12($key),$t2
je .Ledone
and @S[0],$t0
or @S[3],$t3
rol \$1,$t0
xor $t3,@S[2] # s2^=s3|key[3];
xor $t0,@S[1] # s1^=LeftRotate(s0&key[0],1);
and @S[2],$t2
or @S[1],$t1
rol \$1,$t2
xor $t1,@S[0] # s0^=s1|key[1];
xor $t2,@S[3] # s3^=LeftRotate(s2&key[2],1);
jmp .Leloop
.align 16
.Ledone:
xor @S[2],$t0 # SwapHalf
xor @S[3],$t1
xor @S[0],$t2
xor @S[1],$t3
mov $t0,@S[0]
mov $t1,@S[1]
mov $t2,@S[2]
mov $t3,@S[3]
.byte 0xf3,0xc3 # rep ret
.size _x86_64_Camellia_encrypt,.-_x86_64_Camellia_encrypt
# V1.x API
.globl Camellia_DecryptBlock
.type Camellia_DecryptBlock,\@abi-omnipotent
.align 16
Camellia_DecryptBlock:
movl \$128,%eax
subl $arg0d,%eax
movl \$3,$arg0d
adcl \$0,$arg0d # keyBitLength==128?3:4
jmp .Ldec_rounds
.size Camellia_DecryptBlock,.-Camellia_DecryptBlock
# V2
.globl Camellia_DecryptBlock_Rounds
.type Camellia_DecryptBlock_Rounds,\@function,4
.align 16
.Ldec_rounds:
Camellia_DecryptBlock_Rounds:
push %rbx
push %rbp
push %r13
push %r14
push %r15
.Ldec_prologue:
#mov %rsi,$inp # put away arguments
mov %rcx,$out
mov %rdx,$keyend
shl \$6,%edi # process grandRounds
lea .LCamellia_SBOX(%rip),$Tbl
lea ($keyend,%rdi),$key
mov 0(%rsi),@S[0] # load plaintext
mov 4(%rsi),@S[1]
mov 8(%rsi),@S[2]
bswap @S[0]
mov 12(%rsi),@S[3]
bswap @S[1]
bswap @S[2]
bswap @S[3]
call _x86_64_Camellia_decrypt
bswap @S[0]
bswap @S[1]
bswap @S[2]
mov @S[0],0($out)
bswap @S[3]
mov @S[1],4($out)
mov @S[2],8($out)
mov @S[3],12($out)
mov 0(%rsp),%r15
mov 8(%rsp),%r14
mov 16(%rsp),%r13
mov 24(%rsp),%rbp
mov 32(%rsp),%rbx
lea 40(%rsp),%rsp
.Ldec_epilogue:
ret
.size Camellia_DecryptBlock_Rounds,.-Camellia_DecryptBlock_Rounds
.type _x86_64_Camellia_decrypt,\@abi-omnipotent
.align 16
_x86_64_Camellia_decrypt:
xor 0($key),@S[1]
xor 4($key),@S[0] # ^=key[0-3]
xor 8($key),@S[3]
xor 12($key),@S[2]
.align 16
.Ldloop:
mov -8($key),$t1 # prefetch key[4-5]
mov -4($key),$t0
___
for ($i=0;$i<6;$i++) { Camellia_Feistel($i,-8); }
$code.=<<___;
lea -16*4($key),$key
cmp $keyend,$key
mov 0($key),$t3 # prefetch key[2-3]
mov 4($key),$t2
je .Lddone
and @S[0],$t0
or @S[3],$t3
rol \$1,$t0
xor $t3,@S[2] # s2^=s3|key[3];
xor $t0,@S[1] # s1^=LeftRotate(s0&key[0],1);
and @S[2],$t2
or @S[1],$t1
rol \$1,$t2
xor $t1,@S[0] # s0^=s1|key[1];
xor $t2,@S[3] # s3^=LeftRotate(s2&key[2],1);
jmp .Ldloop
.align 16
.Lddone:
xor @S[2],$t2
xor @S[3],$t3
xor @S[0],$t0
xor @S[1],$t1
mov $t2,@S[0] # SwapHalf
mov $t3,@S[1]
mov $t0,@S[2]
mov $t1,@S[3]
.byte 0xf3,0xc3 # rep ret
.size _x86_64_Camellia_decrypt,.-_x86_64_Camellia_decrypt
___
sub _saveround {
my ($rnd,$key,@T)=@_;
my $bias=int(@T[0])?shift(@T):0;
if ($#T==3) {
$code.=<<___;
mov @T[1],`$bias+$rnd*8+0`($key)
mov @T[0],`$bias+$rnd*8+4`($key)
mov @T[3],`$bias+$rnd*8+8`($key)
mov @T[2],`$bias+$rnd*8+12`($key)
___
} else {
$code.=" mov @T[0],`$bias+$rnd*8+0`($key)\n";
$code.=" mov @T[1],`$bias+$rnd*8+8`($key)\n" if ($#T>=1);
}
}
sub _loadround {
my ($rnd,$key,@T)=@_;
my $bias=int(@T[0])?shift(@T):0;
$code.=" mov `$bias+$rnd*8+0`($key),@T[0]\n";
$code.=" mov `$bias+$rnd*8+8`($key),@T[1]\n" if ($#T>=1);
}
# shld is very slow on Intel EM64T family. Even on AMD it limits
# instruction decode rate [because it's VectorPath] and consequently
# performance...
sub __rotl128 {
my ($i0,$i1,$rot)=@_;
if ($rot) {
$code.=<<___;
mov $i0,%r11
shld \$$rot,$i1,$i0
shld \$$rot,%r11,$i1
___
}
}
# ... Implementing 128-bit rotate without shld gives 80% better
# performance EM64T, +15% on AMD64 and only ~7% degradation on
# Core2. This is therefore preferred.
sub _rotl128 {
my ($i0,$i1,$rot)=@_;
if ($rot) {
$code.=<<___;
mov $i0,%r11
shl \$$rot,$i0
mov $i1,%r9
shr \$`64-$rot`,%r9
shr \$`64-$rot`,%r11
or %r9,$i0
shl \$$rot,$i1
or %r11,$i1
___
}
}
{ my $step=0;
$code.=<<___;
.globl Camellia_Ekeygen
.type Camellia_Ekeygen,\@function,3
.align 16
Camellia_Ekeygen:
push %rbx
push %rbp
push %r13
push %r14
push %r15
.Lkey_prologue:
mov %edi,${keyend}d # put away arguments, keyBitLength
mov %rdx,$out # keyTable
mov 0(%rsi),@S[0] # load 0-127 bits
mov 4(%rsi),@S[1]
mov 8(%rsi),@S[2]
mov 12(%rsi),@S[3]
bswap @S[0]
bswap @S[1]
bswap @S[2]
bswap @S[3]
___
&_saveround (0,$out,@S); # KL<<<0
$code.=<<___;
cmp \$128,$keyend # check keyBitLength
je .L1st128
mov 16(%rsi),@S[0] # load 128-191 bits
mov 20(%rsi),@S[1]
cmp \$192,$keyend
je .L1st192
mov 24(%rsi),@S[2] # load 192-255 bits
mov 28(%rsi),@S[3]
jmp .L1st256
.L1st192:
mov @S[0],@S[2]
mov @S[1],@S[3]
not @S[2]
not @S[3]
.L1st256:
bswap @S[0]
bswap @S[1]
bswap @S[2]
bswap @S[3]
___
&_saveround (4,$out,@S); # temp storage for KR!
$code.=<<___;
xor 0($out),@S[1] # KR^KL
xor 4($out),@S[0]
xor 8($out),@S[3]
xor 12($out),@S[2]
.L1st128:
lea .LCamellia_SIGMA(%rip),$key
lea .LCamellia_SBOX(%rip),$Tbl
mov 0($key),$t1
mov 4($key),$t0
___
&Camellia_Feistel($step++);
&Camellia_Feistel($step++);
$code.=<<___;
xor 0($out),@S[1] # ^KL
xor 4($out),@S[0]
xor 8($out),@S[3]
xor 12($out),@S[2]
___
&Camellia_Feistel($step++);
&Camellia_Feistel($step++);
$code.=<<___;
cmp \$128,$keyend
jne .L2nd256
lea 128($out),$out # size optimization
shl \$32,%r8 # @S[0]||
shl \$32,%r10 # @S[2]||
or %r9,%r8 # ||@S[1]
or %r11,%r10 # ||@S[3]
___
&_loadround (0,$out,-128,"%rax","%rbx"); # KL
&_saveround (2,$out,-128,"%r8","%r10"); # KA<<<0
&_rotl128 ("%rax","%rbx",15);
&_saveround (4,$out,-128,"%rax","%rbx"); # KL<<<15
&_rotl128 ("%r8","%r10",15);
&_saveround (6,$out,-128,"%r8","%r10"); # KA<<<15
&_rotl128 ("%r8","%r10",15); # 15+15=30
&_saveround (8,$out,-128,"%r8","%r10"); # KA<<<30
&_rotl128 ("%rax","%rbx",30); # 15+30=45
&_saveround (10,$out,-128,"%rax","%rbx"); # KL<<<45
&_rotl128 ("%r8","%r10",15); # 30+15=45
&_saveround (12,$out,-128,"%r8"); # KA<<<45
&_rotl128 ("%rax","%rbx",15); # 45+15=60
&_saveround (13,$out,-128,"%rbx"); # KL<<<60
&_rotl128 ("%r8","%r10",15); # 45+15=60
&_saveround (14,$out,-128,"%r8","%r10"); # KA<<<60
&_rotl128 ("%rax","%rbx",17); # 60+17=77
&_saveround (16,$out,-128,"%rax","%rbx"); # KL<<<77
&_rotl128 ("%rax","%rbx",17); # 77+17=94
&_saveround (18,$out,-128,"%rax","%rbx"); # KL<<<94
&_rotl128 ("%r8","%r10",34); # 60+34=94
&_saveround (20,$out,-128,"%r8","%r10"); # KA<<<94
&_rotl128 ("%rax","%rbx",17); # 94+17=111
&_saveround (22,$out,-128,"%rax","%rbx"); # KL<<<111
&_rotl128 ("%r8","%r10",17); # 94+17=111
&_saveround (24,$out,-128,"%r8","%r10"); # KA<<<111
$code.=<<___;
mov \$3,%eax
jmp .Ldone
.align 16
.L2nd256:
___
&_saveround (6,$out,@S); # temp storage for KA!
$code.=<<___;
xor `4*8+0`($out),@S[1] # KA^KR
xor `4*8+4`($out),@S[0]
xor `5*8+0`($out),@S[3]
xor `5*8+4`($out),@S[2]
___
&Camellia_Feistel($step++);
&Camellia_Feistel($step++);
&_loadround (0,$out,"%rax","%rbx"); # KL
&_loadround (4,$out,"%rcx","%rdx"); # KR
&_loadround (6,$out,"%r14","%r15"); # KA
$code.=<<___;
lea 128($out),$out # size optimization
shl \$32,%r8 # @S[0]||
shl \$32,%r10 # @S[2]||
or %r9,%r8 # ||@S[1]
or %r11,%r10 # ||@S[3]
___
&_saveround (2,$out,-128,"%r8","%r10"); # KB<<<0
&_rotl128 ("%rcx","%rdx",15);
&_saveround (4,$out,-128,"%rcx","%rdx"); # KR<<<15
&_rotl128 ("%r14","%r15",15);
&_saveround (6,$out,-128,"%r14","%r15"); # KA<<<15
&_rotl128 ("%rcx","%rdx",15); # 15+15=30
&_saveround (8,$out,-128,"%rcx","%rdx"); # KR<<<30
&_rotl128 ("%r8","%r10",30);
&_saveround (10,$out,-128,"%r8","%r10"); # KB<<<30
&_rotl128 ("%rax","%rbx",45);
&_saveround (12,$out,-128,"%rax","%rbx"); # KL<<<45
&_rotl128 ("%r14","%r15",30); # 15+30=45
&_saveround (14,$out,-128,"%r14","%r15"); # KA<<<45
&_rotl128 ("%rax","%rbx",15); # 45+15=60
&_saveround (16,$out,-128,"%rax","%rbx"); # KL<<<60
&_rotl128 ("%rcx","%rdx",30); # 30+30=60
&_saveround (18,$out,-128,"%rcx","%rdx"); # KR<<<60
&_rotl128 ("%r8","%r10",30); # 30+30=60
&_saveround (20,$out,-128,"%r8","%r10"); # KB<<<60
&_rotl128 ("%rax","%rbx",17); # 60+17=77
&_saveround (22,$out,-128,"%rax","%rbx"); # KL<<<77
&_rotl128 ("%r14","%r15",32); # 45+32=77
&_saveround (24,$out,-128,"%r14","%r15"); # KA<<<77
&_rotl128 ("%rcx","%rdx",34); # 60+34=94
&_saveround (26,$out,-128,"%rcx","%rdx"); # KR<<<94
&_rotl128 ("%r14","%r15",17); # 77+17=94
&_saveround (28,$out,-128,"%r14","%r15"); # KA<<<77
&_rotl128 ("%rax","%rbx",34); # 77+34=111
&_saveround (30,$out,-128,"%rax","%rbx"); # KL<<<111
&_rotl128 ("%r8","%r10",51); # 60+51=111
&_saveround (32,$out,-128,"%r8","%r10"); # KB<<<111
$code.=<<___;
mov \$4,%eax
.Ldone:
mov 0(%rsp),%r15
mov 8(%rsp),%r14
mov 16(%rsp),%r13
mov 24(%rsp),%rbp
mov 32(%rsp),%rbx
lea 40(%rsp),%rsp
.Lkey_epilogue:
ret
.size Camellia_Ekeygen,.-Camellia_Ekeygen
___
}
@SBOX=(
112,130, 44,236,179, 39,192,229,228,133, 87, 53,234, 12,174, 65,
35,239,107,147, 69, 25,165, 33,237, 14, 79, 78, 29,101,146,189,
134,184,175,143,124,235, 31,206, 62, 48,220, 95, 94,197, 11, 26,
166,225, 57,202,213, 71, 93, 61,217, 1, 90,214, 81, 86,108, 77,
139, 13,154,102,251,204,176, 45,116, 18, 43, 32,240,177,132,153,
223, 76,203,194, 52,126,118, 5,109,183,169, 49,209, 23, 4,215,
20, 88, 58, 97,222, 27, 17, 28, 50, 15,156, 22, 83, 24,242, 34,
254, 68,207,178,195,181,122,145, 36, 8,232,168, 96,252,105, 80,
170,208,160,125,161,137, 98,151, 84, 91, 30,149,224,255,100,210,
16,196, 0, 72,163,247,117,219,138, 3,230,218, 9, 63,221,148,
135, 92,131, 2,205, 74,144, 51,115,103,246,243,157,127,191,226,
82,155,216, 38,200, 55,198, 59,129,150,111, 75, 19,190, 99, 46,
233,121,167,140,159,110,188,142, 41,245,249,182, 47,253,180, 89,
120,152, 6,106,231, 70,113,186,212, 37,171, 66,136,162,141,250,
114, 7,185, 85,248,238,172, 10, 54, 73, 42,104, 60, 56,241,164,
64, 40,211,123,187,201, 67,193, 21,227,173,244,119,199,128,158);
sub S1110 { my $i=shift; $i=@SBOX[$i]; $i=$i<<24|$i<<16|$i<<8; sprintf("0x%08x",$i); }
sub S4404 { my $i=shift; $i=($i<<1|$i>>7)&0xff; $i=@SBOX[$i]; $i=$i<<24|$i<<16|$i; sprintf("0x%08x",$i); }
sub S0222 { my $i=shift; $i=@SBOX[$i]; $i=($i<<1|$i>>7)&0xff; $i=$i<<16|$i<<8|$i; sprintf("0x%08x",$i); }
sub S3033 { my $i=shift; $i=@SBOX[$i]; $i=($i>>1|$i<<7)&0xff; $i=$i<<24|$i<<8|$i; sprintf("0x%08x",$i); }
$code.=<<___;
.align 64
.LCamellia_SIGMA:
.long 0x3bcc908b, 0xa09e667f, 0x4caa73b2, 0xb67ae858
.long 0xe94f82be, 0xc6ef372f, 0xf1d36f1c, 0x54ff53a5
.long 0xde682d1d, 0x10e527fa, 0xb3e6c1fd, 0xb05688c2
.long 0, 0, 0, 0
.LCamellia_SBOX:
___
# tables are interleaved, remember?
sub data_word { $code.=".long\t".join(',',@_)."\n"; }
for ($i=0;$i<256;$i++) { &data_word(&S1110($i),&S4404($i)); }
for ($i=0;$i<256;$i++) { &data_word(&S0222($i),&S3033($i)); }
# void Camellia_cbc_encrypt (const void char *inp, unsigned char *out,
# size_t length, const CAMELLIA_KEY *key,
# unsigned char *ivp,const int enc);
{
$_key="0(%rsp)";
$_end="8(%rsp)"; # inp+len&~15
$_res="16(%rsp)"; # len&15
$ivec="24(%rsp)";
$_ivp="40(%rsp)";
$_rsp="48(%rsp)";
$code.=<<___;
.globl Camellia_cbc_encrypt
.type Camellia_cbc_encrypt,\@function,6
.align 16
Camellia_cbc_encrypt:
cmp \$0,%rdx
je .Lcbc_abort
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
.Lcbc_prologue:
mov %rsp,%rbp
sub \$64,%rsp
and \$-64,%rsp
# place stack frame just "above mod 1024" the key schedule,
# this ensures that cache associativity suffices
lea -64-63(%rcx),%r10
sub %rsp,%r10
neg %r10
and \$0x3C0,%r10
sub %r10,%rsp
#add \$8,%rsp # 8 is reserved for callee's ra
mov %rdi,$inp # inp argument
mov %rsi,$out # out argument
mov %r8,%rbx # ivp argument
mov %rcx,$key # key argument
mov 272(%rcx),${keyend}d # grandRounds
mov %r8,$_ivp
mov %rbp,$_rsp
.Lcbc_body:
lea .LCamellia_SBOX(%rip),$Tbl
mov \$32,%ecx
.align 4
.Lcbc_prefetch_sbox:
mov 0($Tbl),%rax
mov 32($Tbl),%rsi
mov 64($Tbl),%rdi
mov 96($Tbl),%r11
lea 128($Tbl),$Tbl
loop .Lcbc_prefetch_sbox
sub \$4096,$Tbl
shl \$6,$keyend
mov %rdx,%rcx # len argument
lea ($key,$keyend),$keyend
cmp \$0,%r9d # enc argument
je .LCBC_DECRYPT
and \$-16,%rdx
and \$15,%rcx # length residue
lea ($inp,%rdx),%rdx
mov $key,$_key
mov %rdx,$_end
mov %rcx,$_res
cmp $inp,%rdx
mov 0(%rbx),@S[0] # load IV
mov 4(%rbx),@S[1]
mov 8(%rbx),@S[2]
mov 12(%rbx),@S[3]
je .Lcbc_enc_tail
jmp .Lcbc_eloop
.align 16
.Lcbc_eloop:
xor 0($inp),@S[0]
xor 4($inp),@S[1]
xor 8($inp),@S[2]
bswap @S[0]
xor 12($inp),@S[3]
bswap @S[1]
bswap @S[2]
bswap @S[3]
call _x86_64_Camellia_encrypt
mov $_key,$key # "rewind" the key
bswap @S[0]
mov $_end,%rdx
bswap @S[1]
mov $_res,%rcx
bswap @S[2]
mov @S[0],0($out)
bswap @S[3]
mov @S[1],4($out)
mov @S[2],8($out)
lea 16($inp),$inp
mov @S[3],12($out)
cmp %rdx,$inp
lea 16($out),$out
jne .Lcbc_eloop
cmp \$0,%rcx
jne .Lcbc_enc_tail
mov $_ivp,$out
mov @S[0],0($out) # write out IV residue
mov @S[1],4($out)
mov @S[2],8($out)
mov @S[3],12($out)
jmp .Lcbc_done
.align 16
.Lcbc_enc_tail:
xor %rax,%rax
mov %rax,0+$ivec
mov %rax,8+$ivec
mov %rax,$_res
.Lcbc_enc_pushf:
pushfq
cld
mov $inp,%rsi
lea 8+$ivec,%rdi
.long 0x9066A4F3 # rep movsb
popfq
.Lcbc_enc_popf:
lea $ivec,$inp
lea 16+$ivec,%rax
mov %rax,$_end
jmp .Lcbc_eloop # one more time
.align 16
.LCBC_DECRYPT:
xchg $key,$keyend
add \$15,%rdx
and \$15,%rcx # length residue
and \$-16,%rdx
mov $key,$_key
lea ($inp,%rdx),%rdx
mov %rdx,$_end
mov %rcx,$_res
mov (%rbx),%rax # load IV
mov 8(%rbx),%rbx
jmp .Lcbc_dloop
.align 16
.Lcbc_dloop:
mov 0($inp),@S[0]
mov 4($inp),@S[1]
mov 8($inp),@S[2]
bswap @S[0]
mov 12($inp),@S[3]
bswap @S[1]
mov %rax,0+$ivec # save IV to temporary storage
bswap @S[2]
mov %rbx,8+$ivec
bswap @S[3]
call _x86_64_Camellia_decrypt
mov $_key,$key # "rewind" the key
mov $_end,%rdx
mov $_res,%rcx
bswap @S[0]
mov ($inp),%rax # load IV for next iteration
bswap @S[1]
mov 8($inp),%rbx
bswap @S[2]
xor 0+$ivec,@S[0]
bswap @S[3]
xor 4+$ivec,@S[1]
xor 8+$ivec,@S[2]
lea 16($inp),$inp
xor 12+$ivec,@S[3]
cmp %rdx,$inp
je .Lcbc_ddone
mov @S[0],0($out)
mov @S[1],4($out)
mov @S[2],8($out)
mov @S[3],12($out)
lea 16($out),$out
jmp .Lcbc_dloop
.align 16
.Lcbc_ddone:
mov $_ivp,%rdx
cmp \$0,%rcx
jne .Lcbc_dec_tail
mov @S[0],0($out)
mov @S[1],4($out)
mov @S[2],8($out)
mov @S[3],12($out)
mov %rax,(%rdx) # write out IV residue
mov %rbx,8(%rdx)
jmp .Lcbc_done
.align 16
.Lcbc_dec_tail:
mov @S[0],0+$ivec
mov @S[1],4+$ivec
mov @S[2],8+$ivec
mov @S[3],12+$ivec
.Lcbc_dec_pushf:
pushfq
cld
lea 8+$ivec,%rsi
lea ($out),%rdi
.long 0x9066A4F3 # rep movsb
popfq
.Lcbc_dec_popf:
mov %rax,(%rdx) # write out IV residue
mov %rbx,8(%rdx)
jmp .Lcbc_done
.align 16
.Lcbc_done:
mov $_rsp,%rcx
mov 0(%rcx),%r15
mov 8(%rcx),%r14
mov 16(%rcx),%r13
mov 24(%rcx),%r12
mov 32(%rcx),%rbp
mov 40(%rcx),%rbx
lea 48(%rcx),%rsp
.Lcbc_abort:
ret
.size Camellia_cbc_encrypt,.-Camellia_cbc_encrypt
.asciz "Camellia for x86_64 by <appro\@openssl.org>"
___
}
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
if ($win64) {
$rec="%rcx";
$frame="%rdx";
$context="%r8";
$disp="%r9";
$code.=<<___;
.extern __imp_RtlVirtualUnwind
.type common_se_handler,\@abi-omnipotent
.align 16
common_se_handler:
push %rsi
push %rdi
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
pushfq
lea -64(%rsp),%rsp
mov 120($context),%rax # pull context->Rax
mov 248($context),%rbx # pull context->Rip
mov 8($disp),%rsi # disp->ImageBase
mov 56($disp),%r11 # disp->HandlerData
mov 0(%r11),%r10d # HandlerData[0]
lea (%rsi,%r10),%r10 # prologue label
cmp %r10,%rbx # context->Rip<prologue label
jb .Lin_prologue
mov 152($context),%rax # pull context->Rsp
mov 4(%r11),%r10d # HandlerData[1]
lea (%rsi,%r10),%r10 # epilogue label
cmp %r10,%rbx # context->Rip>=epilogue label
jae .Lin_prologue
lea 40(%rax),%rax
mov -8(%rax),%rbx
mov -16(%rax),%rbp
mov -24(%rax),%r13
mov -32(%rax),%r14
mov -40(%rax),%r15
mov %rbx,144($context) # restore context->Rbx
mov %rbp,160($context) # restore context->Rbp
mov %r13,224($context) # restore context->R13
mov %r14,232($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
jmp .Lcommon_seh_exit
.size common_se_handler,.-common_se_handler
.type cbc_se_handler,\@abi-omnipotent
.align 16
cbc_se_handler:
push %rsi
push %rdi
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
pushfq
lea -64(%rsp),%rsp
mov 120($context),%rax # pull context->Rax
mov 248($context),%rbx # pull context->Rip
lea .Lcbc_prologue(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lcbc_prologue
jb .Lin_cbc_prologue
lea .Lcbc_body(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lcbc_body
jb .Lin_cbc_frame_setup
mov 152($context),%rax # pull context->Rsp
lea .Lcbc_abort(%rip),%r10
cmp %r10,%rbx # context->Rip>=.Lcbc_abort
jae .Lin_cbc_prologue
# handle pushf/popf in Camellia_cbc_encrypt
lea .Lcbc_enc_pushf(%rip),%r10
cmp %r10,%rbx # context->Rip<=.Lcbc_enc_pushf
jbe .Lin_cbc_no_flag
lea 8(%rax),%rax
lea .Lcbc_enc_popf(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lcbc_enc_popf
jb .Lin_cbc_no_flag
lea -8(%rax),%rax
lea .Lcbc_dec_pushf(%rip),%r10
cmp %r10,%rbx # context->Rip<=.Lcbc_dec_pushf
jbe .Lin_cbc_no_flag
lea 8(%rax),%rax
lea .Lcbc_dec_popf(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lcbc_dec_popf
jb .Lin_cbc_no_flag
lea -8(%rax),%rax
.Lin_cbc_no_flag:
mov 48(%rax),%rax # $_rsp
lea 48(%rax),%rax
.Lin_cbc_frame_setup:
mov -8(%rax),%rbx
mov -16(%rax),%rbp
mov -24(%rax),%r12
mov -32(%rax),%r13
mov -40(%rax),%r14
mov -48(%rax),%r15
mov %rbx,144($context) # restore context->Rbx
mov %rbp,160($context) # restore context->Rbp
mov %r12,216($context) # restore context->R12
mov %r13,224($context) # restore context->R13
mov %r14,232($context) # restore context->R14
mov %r15,240($context) # restore context->R15
.Lin_cbc_prologue:
mov 8(%rax),%rdi
mov 16(%rax),%rsi
mov %rax,152($context) # restore context->Rsp
mov %rsi,168($context) # restore context->Rsi
mov %rdi,176($context) # restore context->Rdi
.align 4
.Lcommon_seh_exit:
mov 40($disp),%rdi # disp->ContextRecord
mov $context,%rsi # context
mov \$`1232/8`,%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
lea 64(%rsp),%rsp
popfq
pop %r15
pop %r14
pop %r13
pop %r12
pop %rbp
pop %rbx
pop %rdi
pop %rsi
ret
.size cbc_se_handler,.-cbc_se_handler
.section .pdata
.align 4
.rva .LSEH_begin_Camellia_EncryptBlock_Rounds
.rva .LSEH_end_Camellia_EncryptBlock_Rounds
.rva .LSEH_info_Camellia_EncryptBlock_Rounds
.rva .LSEH_begin_Camellia_DecryptBlock_Rounds
.rva .LSEH_end_Camellia_DecryptBlock_Rounds
.rva .LSEH_info_Camellia_DecryptBlock_Rounds
.rva .LSEH_begin_Camellia_Ekeygen
.rva .LSEH_end_Camellia_Ekeygen
.rva .LSEH_info_Camellia_Ekeygen
.rva .LSEH_begin_Camellia_cbc_encrypt
.rva .LSEH_end_Camellia_cbc_encrypt
.rva .LSEH_info_Camellia_cbc_encrypt
.section .xdata
.align 8
.LSEH_info_Camellia_EncryptBlock_Rounds:
.byte 9,0,0,0
.rva common_se_handler
.rva .Lenc_prologue,.Lenc_epilogue # HandlerData[]
.LSEH_info_Camellia_DecryptBlock_Rounds:
.byte 9,0,0,0
.rva common_se_handler
.rva .Ldec_prologue,.Ldec_epilogue # HandlerData[]
.LSEH_info_Camellia_Ekeygen:
.byte 9,0,0,0
.rva common_se_handler
.rva .Lkey_prologue,.Lkey_epilogue # HandlerData[]
.LSEH_info_Camellia_cbc_encrypt:
.byte 9,0,0,0
.rva cbc_se_handler
___
}
$code =~ s/\`([^\`]*)\`/eval $1/gem;
print $code;
close STDOUT;
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