425 lines
9.3 KiB
Perl
425 lines
9.3 KiB
Perl
#! /usr/bin/env perl
|
|
# Copyright 2011-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
#
|
|
# Licensed under the OpenSSL license (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
|
|
|
|
#
|
|
# ====================================================================
|
|
# 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/.
|
|
# ====================================================================
|
|
#
|
|
# May 2011
|
|
#
|
|
# The module implements bn_GF2m_mul_2x2 polynomial multiplication used
|
|
# in bn_gf2m.c. It's kind of low-hanging mechanical port from C for
|
|
# the time being... Except that it has two code paths: code suitable
|
|
# for any x86_64 CPU and PCLMULQDQ one suitable for Westmere and
|
|
# later. Improvement varies from one benchmark and µ-arch to another.
|
|
# Vanilla code path is at most 20% faster than compiler-generated code
|
|
# [not very impressive], while PCLMULQDQ - whole 85%-160% better on
|
|
# 163- and 571-bit ECDH benchmarks on Intel CPUs. Keep in mind that
|
|
# these coefficients are not ones for bn_GF2m_mul_2x2 itself, as not
|
|
# all CPU time is burnt in it...
|
|
|
|
$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;
|
|
|
|
($lo,$hi)=("%rax","%rdx"); $a=$lo;
|
|
($i0,$i1)=("%rsi","%rdi");
|
|
($t0,$t1)=("%rbx","%rcx");
|
|
($b,$mask)=("%rbp","%r8");
|
|
($a1,$a2,$a4,$a8,$a12,$a48)=map("%r$_",(9..15));
|
|
($R,$Tx)=("%xmm0","%xmm1");
|
|
|
|
$code.=<<___;
|
|
.text
|
|
|
|
.type _mul_1x1,\@abi-omnipotent
|
|
.align 16
|
|
_mul_1x1:
|
|
.cfi_startproc
|
|
sub \$128+8,%rsp
|
|
.cfi_adjust_cfa_offset 128+8
|
|
mov \$-1,$a1
|
|
lea ($a,$a),$i0
|
|
shr \$3,$a1
|
|
lea (,$a,4),$i1
|
|
and $a,$a1 # a1=a&0x1fffffffffffffff
|
|
lea (,$a,8),$a8
|
|
sar \$63,$a # broadcast 63rd bit
|
|
lea ($a1,$a1),$a2
|
|
sar \$63,$i0 # broadcast 62nd bit
|
|
lea (,$a1,4),$a4
|
|
and $b,$a
|
|
sar \$63,$i1 # broadcast 61st bit
|
|
mov $a,$hi # $a is $lo
|
|
shl \$63,$lo
|
|
and $b,$i0
|
|
shr \$1,$hi
|
|
mov $i0,$t1
|
|
shl \$62,$i0
|
|
and $b,$i1
|
|
shr \$2,$t1
|
|
xor $i0,$lo
|
|
mov $i1,$t0
|
|
shl \$61,$i1
|
|
xor $t1,$hi
|
|
shr \$3,$t0
|
|
xor $i1,$lo
|
|
xor $t0,$hi
|
|
|
|
mov $a1,$a12
|
|
movq \$0,0(%rsp) # tab[0]=0
|
|
xor $a2,$a12 # a1^a2
|
|
mov $a1,8(%rsp) # tab[1]=a1
|
|
mov $a4,$a48
|
|
mov $a2,16(%rsp) # tab[2]=a2
|
|
xor $a8,$a48 # a4^a8
|
|
mov $a12,24(%rsp) # tab[3]=a1^a2
|
|
|
|
xor $a4,$a1
|
|
mov $a4,32(%rsp) # tab[4]=a4
|
|
xor $a4,$a2
|
|
mov $a1,40(%rsp) # tab[5]=a1^a4
|
|
xor $a4,$a12
|
|
mov $a2,48(%rsp) # tab[6]=a2^a4
|
|
xor $a48,$a1 # a1^a4^a4^a8=a1^a8
|
|
mov $a12,56(%rsp) # tab[7]=a1^a2^a4
|
|
xor $a48,$a2 # a2^a4^a4^a8=a1^a8
|
|
|
|
mov $a8,64(%rsp) # tab[8]=a8
|
|
xor $a48,$a12 # a1^a2^a4^a4^a8=a1^a2^a8
|
|
mov $a1,72(%rsp) # tab[9]=a1^a8
|
|
xor $a4,$a1 # a1^a8^a4
|
|
mov $a2,80(%rsp) # tab[10]=a2^a8
|
|
xor $a4,$a2 # a2^a8^a4
|
|
mov $a12,88(%rsp) # tab[11]=a1^a2^a8
|
|
|
|
xor $a4,$a12 # a1^a2^a8^a4
|
|
mov $a48,96(%rsp) # tab[12]=a4^a8
|
|
mov $mask,$i0
|
|
mov $a1,104(%rsp) # tab[13]=a1^a4^a8
|
|
and $b,$i0
|
|
mov $a2,112(%rsp) # tab[14]=a2^a4^a8
|
|
shr \$4,$b
|
|
mov $a12,120(%rsp) # tab[15]=a1^a2^a4^a8
|
|
mov $mask,$i1
|
|
and $b,$i1
|
|
shr \$4,$b
|
|
|
|
movq (%rsp,$i0,8),$R # half of calculations is done in SSE2
|
|
mov $mask,$i0
|
|
and $b,$i0
|
|
shr \$4,$b
|
|
___
|
|
for ($n=1;$n<8;$n++) {
|
|
$code.=<<___;
|
|
mov (%rsp,$i1,8),$t1
|
|
mov $mask,$i1
|
|
mov $t1,$t0
|
|
shl \$`8*$n-4`,$t1
|
|
and $b,$i1
|
|
movq (%rsp,$i0,8),$Tx
|
|
shr \$`64-(8*$n-4)`,$t0
|
|
xor $t1,$lo
|
|
pslldq \$$n,$Tx
|
|
mov $mask,$i0
|
|
shr \$4,$b
|
|
xor $t0,$hi
|
|
and $b,$i0
|
|
shr \$4,$b
|
|
pxor $Tx,$R
|
|
___
|
|
}
|
|
$code.=<<___;
|
|
mov (%rsp,$i1,8),$t1
|
|
mov $t1,$t0
|
|
shl \$`8*$n-4`,$t1
|
|
movq $R,$i0
|
|
shr \$`64-(8*$n-4)`,$t0
|
|
xor $t1,$lo
|
|
psrldq \$8,$R
|
|
xor $t0,$hi
|
|
movq $R,$i1
|
|
xor $i0,$lo
|
|
xor $i1,$hi
|
|
|
|
add \$128+8,%rsp
|
|
.cfi_adjust_cfa_offset -128-8
|
|
ret
|
|
.Lend_mul_1x1:
|
|
.cfi_endproc
|
|
.size _mul_1x1,.-_mul_1x1
|
|
___
|
|
|
|
($rp,$a1,$a0,$b1,$b0) = $win64? ("%rcx","%rdx","%r8", "%r9","%r10") : # Win64 order
|
|
("%rdi","%rsi","%rdx","%rcx","%r8"); # Unix order
|
|
|
|
$code.=<<___;
|
|
.extern OPENSSL_ia32cap_P
|
|
.globl bn_GF2m_mul_2x2
|
|
.type bn_GF2m_mul_2x2,\@abi-omnipotent
|
|
.align 16
|
|
bn_GF2m_mul_2x2:
|
|
.cfi_startproc
|
|
mov %rsp,%rax
|
|
mov OPENSSL_ia32cap_P(%rip),%r10
|
|
bt \$33,%r10
|
|
jnc .Lvanilla_mul_2x2
|
|
|
|
movq $a1,%xmm0
|
|
movq $b1,%xmm1
|
|
movq $a0,%xmm2
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
movq 40(%rsp),%xmm3
|
|
___
|
|
$code.=<<___ if (!$win64);
|
|
movq $b0,%xmm3
|
|
___
|
|
$code.=<<___;
|
|
movdqa %xmm0,%xmm4
|
|
movdqa %xmm1,%xmm5
|
|
pclmulqdq \$0,%xmm1,%xmm0 # a1·b1
|
|
pxor %xmm2,%xmm4
|
|
pxor %xmm3,%xmm5
|
|
pclmulqdq \$0,%xmm3,%xmm2 # a0·b0
|
|
pclmulqdq \$0,%xmm5,%xmm4 # (a0+a1)·(b0+b1)
|
|
xorps %xmm0,%xmm4
|
|
xorps %xmm2,%xmm4 # (a0+a1)·(b0+b1)-a0·b0-a1·b1
|
|
movdqa %xmm4,%xmm5
|
|
pslldq \$8,%xmm4
|
|
psrldq \$8,%xmm5
|
|
pxor %xmm4,%xmm2
|
|
pxor %xmm5,%xmm0
|
|
movdqu %xmm2,0($rp)
|
|
movdqu %xmm0,16($rp)
|
|
ret
|
|
|
|
.align 16
|
|
.Lvanilla_mul_2x2:
|
|
lea -8*17(%rsp),%rsp
|
|
.cfi_adjust_cfa_offset 8*17
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
mov `8*17+40`(%rsp),$b0
|
|
mov %rdi,8*15(%rsp)
|
|
mov %rsi,8*16(%rsp)
|
|
___
|
|
$code.=<<___;
|
|
mov %r14,8*10(%rsp)
|
|
.cfi_rel_offset %r14,8*10
|
|
mov %r13,8*11(%rsp)
|
|
.cfi_rel_offset %r13,8*11
|
|
mov %r12,8*12(%rsp)
|
|
.cfi_rel_offset %r12,8*12
|
|
mov %rbp,8*13(%rsp)
|
|
.cfi_rel_offset %rbp,8*13
|
|
mov %rbx,8*14(%rsp)
|
|
.cfi_rel_offset %rbx,8*14
|
|
.Lbody_mul_2x2:
|
|
mov $rp,32(%rsp) # save the arguments
|
|
mov $a1,40(%rsp)
|
|
mov $a0,48(%rsp)
|
|
mov $b1,56(%rsp)
|
|
mov $b0,64(%rsp)
|
|
|
|
mov \$0xf,$mask
|
|
mov $a1,$a
|
|
mov $b1,$b
|
|
call _mul_1x1 # a1·b1
|
|
mov $lo,16(%rsp)
|
|
mov $hi,24(%rsp)
|
|
|
|
mov 48(%rsp),$a
|
|
mov 64(%rsp),$b
|
|
call _mul_1x1 # a0·b0
|
|
mov $lo,0(%rsp)
|
|
mov $hi,8(%rsp)
|
|
|
|
mov 40(%rsp),$a
|
|
mov 56(%rsp),$b
|
|
xor 48(%rsp),$a
|
|
xor 64(%rsp),$b
|
|
call _mul_1x1 # (a0+a1)·(b0+b1)
|
|
___
|
|
@r=("%rbx","%rcx","%rdi","%rsi");
|
|
$code.=<<___;
|
|
mov 0(%rsp),@r[0]
|
|
mov 8(%rsp),@r[1]
|
|
mov 16(%rsp),@r[2]
|
|
mov 24(%rsp),@r[3]
|
|
mov 32(%rsp),%rbp
|
|
|
|
xor $hi,$lo
|
|
xor @r[1],$hi
|
|
xor @r[0],$lo
|
|
mov @r[0],0(%rbp)
|
|
xor @r[2],$hi
|
|
mov @r[3],24(%rbp)
|
|
xor @r[3],$lo
|
|
xor @r[3],$hi
|
|
xor $hi,$lo
|
|
mov $hi,16(%rbp)
|
|
mov $lo,8(%rbp)
|
|
|
|
mov 8*10(%rsp),%r14
|
|
.cfi_restore %r14
|
|
mov 8*11(%rsp),%r13
|
|
.cfi_restore %r13
|
|
mov 8*12(%rsp),%r12
|
|
.cfi_restore %r12
|
|
mov 8*13(%rsp),%rbp
|
|
.cfi_restore %rbp
|
|
mov 8*14(%rsp),%rbx
|
|
.cfi_restore %rbx
|
|
___
|
|
$code.=<<___ if ($win64);
|
|
mov 8*15(%rsp),%rdi
|
|
mov 8*16(%rsp),%rsi
|
|
___
|
|
$code.=<<___;
|
|
lea 8*17(%rsp),%rsp
|
|
.cfi_adjust_cfa_offset -8*17
|
|
.Lepilogue_mul_2x2:
|
|
ret
|
|
.Lend_mul_2x2:
|
|
.cfi_endproc
|
|
.size bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
|
|
.asciz "GF(2^m) Multiplication for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
|
|
.align 16
|
|
___
|
|
|
|
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
|
|
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
|
|
if ($win64) {
|
|
$rec="%rcx";
|
|
$frame="%rdx";
|
|
$context="%r8";
|
|
$disp="%r9";
|
|
|
|
$code.=<<___;
|
|
.extern __imp_RtlVirtualUnwind
|
|
|
|
.type se_handler,\@abi-omnipotent
|
|
.align 16
|
|
se_handler:
|
|
push %rsi
|
|
push %rdi
|
|
push %rbx
|
|
push %rbp
|
|
push %r12
|
|
push %r13
|
|
push %r14
|
|
push %r15
|
|
pushfq
|
|
sub \$64,%rsp
|
|
|
|
mov 120($context),%rax # pull context->Rax
|
|
mov 248($context),%rbx # pull context->Rip
|
|
|
|
lea .Lbody_mul_2x2(%rip),%r10
|
|
cmp %r10,%rbx # context->Rip<"prologue" label
|
|
jb .Lin_prologue
|
|
|
|
mov 152($context),%rax # pull context->Rsp
|
|
|
|
lea .Lepilogue_mul_2x2(%rip),%r10
|
|
cmp %r10,%rbx # context->Rip>="epilogue" label
|
|
jae .Lin_prologue
|
|
|
|
mov 8*10(%rax),%r14 # mimic epilogue
|
|
mov 8*11(%rax),%r13
|
|
mov 8*12(%rax),%r12
|
|
mov 8*13(%rax),%rbp
|
|
mov 8*14(%rax),%rbx
|
|
mov 8*15(%rax),%rdi
|
|
mov 8*16(%rax),%rsi
|
|
|
|
mov %rbx,144($context) # restore context->Rbx
|
|
mov %rbp,160($context) # restore context->Rbp
|
|
mov %rsi,168($context) # restore context->Rsi
|
|
mov %rdi,176($context) # restore context->Rdi
|
|
mov %r12,216($context) # restore context->R12
|
|
mov %r13,224($context) # restore context->R13
|
|
mov %r14,232($context) # restore context->R14
|
|
|
|
lea 8*17(%rax),%rax
|
|
|
|
.Lin_prologue:
|
|
mov %rax,152($context) # restore context->Rsp
|
|
|
|
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 _mul_1x1
|
|
.rva .Lend_mul_1x1
|
|
.rva .LSEH_info_1x1
|
|
|
|
.rva .Lvanilla_mul_2x2
|
|
.rva .Lend_mul_2x2
|
|
.rva .LSEH_info_2x2
|
|
.section .xdata
|
|
.align 8
|
|
.LSEH_info_1x1:
|
|
.byte 0x01,0x07,0x02,0x00
|
|
.byte 0x07,0x01,0x11,0x00 # sub rsp,128+8
|
|
.LSEH_info_2x2:
|
|
.byte 9,0,0,0
|
|
.rva se_handler
|
|
___
|
|
}
|
|
|
|
$code =~ s/\`([^\`]*)\`/eval($1)/gem;
|
|
print $code;
|
|
close STDOUT or die "error closing STDOUT: $!";
|