boringssl/crypto/md5/asm/md5-x86_64.pl
David Benjamin fdd8e9c8c7 Switch perlasm calling convention.
Depending on architecture, perlasm differed on which one or both of:

  perl foo.pl flavor output.S
  perl foo.pl flavor > output.S

Upstream has now unified on the first form after making a number of
changes to their files (the second does not even work for their x86
files anymore). Sync those portions of our perlasm scripts with upstream
and update CMakeLists.txt and generate_build_files.py per the new
convention.

This imports various commits like this one:
184bc45f683c76531d7e065b6553ca9086564576 (this was done by taking a
diff, so I don't have the full list)

Confirmed that generate_build_files.py sees no change.

BUG=14

Change-Id: Id2fb5b8bc2a7369d077221b5df9a6947d41f50d2
Reviewed-on: https://boringssl-review.googlesource.com/8518
Reviewed-by: Adam Langley <agl@google.com>
2016-06-27 21:59:26 +00:00

371 lines
12 KiB
Perl

#!/usr/bin/perl -w
#
# MD5 optimized for AMD64.
#
# Author: Marc Bevand <bevand_m (at) epita.fr>
# Licence: I hereby disclaim the copyright on this code and place it
# in the public domain.
#
use strict;
my $code;
# round1_step() does:
# dst = x + ((dst + F(x,y,z) + X[k] + T_i) <<< s)
# %r10d = X[k_next]
# %r11d = z' (copy of z for the next step)
# Each round1_step() takes about 5.3 clocks (9 instructions, 1.7 IPC)
sub round1_step
{
my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
$code .= " mov 0*4(%rsi), %r10d /* (NEXT STEP) X[0] */\n" if ($pos == -1);
$code .= " mov %edx, %r11d /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
$code .= <<EOF;
xor $y, %r11d /* y ^ ... */
lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
and $x, %r11d /* x & ... */
xor $z, %r11d /* z ^ ... */
mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
add %r11d, $dst /* dst += ... */
rol \$$s, $dst /* dst <<< s */
mov $y, %r11d /* (NEXT STEP) z' = $y */
add $x, $dst /* dst += x */
EOF
}
# round2_step() does:
# dst = x + ((dst + G(x,y,z) + X[k] + T_i) <<< s)
# %r10d = X[k_next]
# %r11d = z' (copy of z for the next step)
# %r12d = z' (copy of z for the next step)
# Each round2_step() takes about 5.4 clocks (11 instructions, 2.0 IPC)
sub round2_step
{
my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
$code .= " mov 1*4(%rsi), %r10d /* (NEXT STEP) X[1] */\n" if ($pos == -1);
$code .= " mov %edx, %r11d /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
$code .= " mov %edx, %r12d /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
$code .= <<EOF;
not %r11d /* not z */
lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
and $x, %r12d /* x & z */
and $y, %r11d /* y & (not z) */
mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
or %r11d, %r12d /* (y & (not z)) | (x & z) */
mov $y, %r11d /* (NEXT STEP) z' = $y */
add %r12d, $dst /* dst += ... */
mov $y, %r12d /* (NEXT STEP) z' = $y */
rol \$$s, $dst /* dst <<< s */
add $x, $dst /* dst += x */
EOF
}
# round3_step() does:
# dst = x + ((dst + H(x,y,z) + X[k] + T_i) <<< s)
# %r10d = X[k_next]
# %r11d = y' (copy of y for the next step)
# Each round3_step() takes about 4.2 clocks (8 instructions, 1.9 IPC)
sub round3_step
{
my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
$code .= " mov 5*4(%rsi), %r10d /* (NEXT STEP) X[5] */\n" if ($pos == -1);
$code .= " mov %ecx, %r11d /* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
$code .= <<EOF;
lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
xor $z, %r11d /* z ^ ... */
xor $x, %r11d /* x ^ ... */
add %r11d, $dst /* dst += ... */
rol \$$s, $dst /* dst <<< s */
mov $x, %r11d /* (NEXT STEP) y' = $x */
add $x, $dst /* dst += x */
EOF
}
# round4_step() does:
# dst = x + ((dst + I(x,y,z) + X[k] + T_i) <<< s)
# %r10d = X[k_next]
# %r11d = not z' (copy of not z for the next step)
# Each round4_step() takes about 5.2 clocks (9 instructions, 1.7 IPC)
sub round4_step
{
my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
$code .= " mov 0*4(%rsi), %r10d /* (NEXT STEP) X[0] */\n" if ($pos == -1);
$code .= " mov \$0xffffffff, %r11d\n" if ($pos == -1);
$code .= " xor %edx, %r11d /* (NEXT STEP) not z' = not %edx*/\n"
if ($pos == -1);
$code .= <<EOF;
lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
or $x, %r11d /* x | ... */
xor $y, %r11d /* y ^ ... */
add %r11d, $dst /* dst += ... */
mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
mov \$0xffffffff, %r11d
rol \$$s, $dst /* dst <<< s */
xor $y, %r11d /* (NEXT STEP) not z' = not $y */
add $x, $dst /* dst += x */
EOF
}
no warnings qw(uninitialized);
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;
$code .= <<EOF;
.text
.align 16
.globl md5_block_asm_data_order
.type md5_block_asm_data_order,\@function,3
md5_block_asm_data_order:
push %rbp
push %rbx
push %r12
push %r14
push %r15
.Lprologue:
# rdi = arg #1 (ctx, MD5_CTX pointer)
# rsi = arg #2 (ptr, data pointer)
# rdx = arg #3 (nbr, number of 16-word blocks to process)
mov %rdi, %rbp # rbp = ctx
shl \$6, %rdx # rdx = nbr in bytes
lea (%rsi,%rdx), %rdi # rdi = end
mov 0*4(%rbp), %eax # eax = ctx->A
mov 1*4(%rbp), %ebx # ebx = ctx->B
mov 2*4(%rbp), %ecx # ecx = ctx->C
mov 3*4(%rbp), %edx # edx = ctx->D
# end is 'rdi'
# ptr is 'rsi'
# A is 'eax'
# B is 'ebx'
# C is 'ecx'
# D is 'edx'
cmp %rdi, %rsi # cmp end with ptr
je .Lend # jmp if ptr == end
# BEGIN of loop over 16-word blocks
.Lloop: # save old values of A, B, C, D
mov %eax, %r8d
mov %ebx, %r9d
mov %ecx, %r14d
mov %edx, %r15d
EOF
round1_step(-1,'%eax','%ebx','%ecx','%edx', '1','0xd76aa478', '7');
round1_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xe8c7b756','12');
round1_step( 0,'%ecx','%edx','%eax','%ebx', '3','0x242070db','17');
round1_step( 0,'%ebx','%ecx','%edx','%eax', '4','0xc1bdceee','22');
round1_step( 0,'%eax','%ebx','%ecx','%edx', '5','0xf57c0faf', '7');
round1_step( 0,'%edx','%eax','%ebx','%ecx', '6','0x4787c62a','12');
round1_step( 0,'%ecx','%edx','%eax','%ebx', '7','0xa8304613','17');
round1_step( 0,'%ebx','%ecx','%edx','%eax', '8','0xfd469501','22');
round1_step( 0,'%eax','%ebx','%ecx','%edx', '9','0x698098d8', '7');
round1_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8b44f7af','12');
round1_step( 0,'%ecx','%edx','%eax','%ebx','11','0xffff5bb1','17');
round1_step( 0,'%ebx','%ecx','%edx','%eax','12','0x895cd7be','22');
round1_step( 0,'%eax','%ebx','%ecx','%edx','13','0x6b901122', '7');
round1_step( 0,'%edx','%eax','%ebx','%ecx','14','0xfd987193','12');
round1_step( 0,'%ecx','%edx','%eax','%ebx','15','0xa679438e','17');
round1_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x49b40821','22');
round2_step(-1,'%eax','%ebx','%ecx','%edx', '6','0xf61e2562', '5');
round2_step( 0,'%edx','%eax','%ebx','%ecx','11','0xc040b340', '9');
round2_step( 0,'%ecx','%edx','%eax','%ebx', '0','0x265e5a51','14');
round2_step( 0,'%ebx','%ecx','%edx','%eax', '5','0xe9b6c7aa','20');
round2_step( 0,'%eax','%ebx','%ecx','%edx','10','0xd62f105d', '5');
round2_step( 0,'%edx','%eax','%ebx','%ecx','15', '0x2441453', '9');
round2_step( 0,'%ecx','%edx','%eax','%ebx', '4','0xd8a1e681','14');
round2_step( 0,'%ebx','%ecx','%edx','%eax', '9','0xe7d3fbc8','20');
round2_step( 0,'%eax','%ebx','%ecx','%edx','14','0x21e1cde6', '5');
round2_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xc33707d6', '9');
round2_step( 0,'%ecx','%edx','%eax','%ebx', '8','0xf4d50d87','14');
round2_step( 0,'%ebx','%ecx','%edx','%eax','13','0x455a14ed','20');
round2_step( 0,'%eax','%ebx','%ecx','%edx', '2','0xa9e3e905', '5');
round2_step( 0,'%edx','%eax','%ebx','%ecx', '7','0xfcefa3f8', '9');
round2_step( 0,'%ecx','%edx','%eax','%ebx','12','0x676f02d9','14');
round2_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x8d2a4c8a','20');
round3_step(-1,'%eax','%ebx','%ecx','%edx', '8','0xfffa3942', '4');
round3_step( 0,'%edx','%eax','%ebx','%ecx','11','0x8771f681','11');
round3_step( 0,'%ecx','%edx','%eax','%ebx','14','0x6d9d6122','16');
round3_step( 0,'%ebx','%ecx','%edx','%eax', '1','0xfde5380c','23');
round3_step( 0,'%eax','%ebx','%ecx','%edx', '4','0xa4beea44', '4');
round3_step( 0,'%edx','%eax','%ebx','%ecx', '7','0x4bdecfa9','11');
round3_step( 0,'%ecx','%edx','%eax','%ebx','10','0xf6bb4b60','16');
round3_step( 0,'%ebx','%ecx','%edx','%eax','13','0xbebfbc70','23');
round3_step( 0,'%eax','%ebx','%ecx','%edx', '0','0x289b7ec6', '4');
round3_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xeaa127fa','11');
round3_step( 0,'%ecx','%edx','%eax','%ebx', '6','0xd4ef3085','16');
round3_step( 0,'%ebx','%ecx','%edx','%eax', '9', '0x4881d05','23');
round3_step( 0,'%eax','%ebx','%ecx','%edx','12','0xd9d4d039', '4');
round3_step( 0,'%edx','%eax','%ebx','%ecx','15','0xe6db99e5','11');
round3_step( 0,'%ecx','%edx','%eax','%ebx', '2','0x1fa27cf8','16');
round3_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xc4ac5665','23');
round4_step(-1,'%eax','%ebx','%ecx','%edx', '7','0xf4292244', '6');
round4_step( 0,'%edx','%eax','%ebx','%ecx','14','0x432aff97','10');
round4_step( 0,'%ecx','%edx','%eax','%ebx', '5','0xab9423a7','15');
round4_step( 0,'%ebx','%ecx','%edx','%eax','12','0xfc93a039','21');
round4_step( 0,'%eax','%ebx','%ecx','%edx', '3','0x655b59c3', '6');
round4_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8f0ccc92','10');
round4_step( 0,'%ecx','%edx','%eax','%ebx', '1','0xffeff47d','15');
round4_step( 0,'%ebx','%ecx','%edx','%eax', '8','0x85845dd1','21');
round4_step( 0,'%eax','%ebx','%ecx','%edx','15','0x6fa87e4f', '6');
round4_step( 0,'%edx','%eax','%ebx','%ecx', '6','0xfe2ce6e0','10');
round4_step( 0,'%ecx','%edx','%eax','%ebx','13','0xa3014314','15');
round4_step( 0,'%ebx','%ecx','%edx','%eax', '4','0x4e0811a1','21');
round4_step( 0,'%eax','%ebx','%ecx','%edx','11','0xf7537e82', '6');
round4_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xbd3af235','10');
round4_step( 0,'%ecx','%edx','%eax','%ebx', '9','0x2ad7d2bb','15');
round4_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xeb86d391','21');
$code .= <<EOF;
# add old values of A, B, C, D
add %r8d, %eax
add %r9d, %ebx
add %r14d, %ecx
add %r15d, %edx
# loop control
add \$64, %rsi # ptr += 64
cmp %rdi, %rsi # cmp end with ptr
jb .Lloop # jmp if ptr < end
# END of loop over 16-word blocks
.Lend:
mov %eax, 0*4(%rbp) # ctx->A = A
mov %ebx, 1*4(%rbp) # ctx->B = B
mov %ecx, 2*4(%rbp) # ctx->C = C
mov %edx, 3*4(%rbp) # ctx->D = D
mov (%rsp),%r15
mov 8(%rsp),%r14
mov 16(%rsp),%r12
mov 24(%rsp),%rbx
mov 32(%rsp),%rbp
add \$40,%rsp
.Lepilogue:
ret
.size md5_block_asm_data_order,.-md5_block_asm_data_order
EOF
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
if ($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($context),%rbx # pull context->Rip
lea .Lprologue(%rip),%r10
cmp %r10,%rbx # context->Rip<.Lprologue
jb .Lin_prologue
mov 152($context),%rax # pull context->Rsp
lea .Lepilogue(%rip),%r10
cmp %r10,%rbx # context->Rip>=.Lepilogue
jae .Lin_prologue
lea 40(%rax),%rax
mov -8(%rax),%rbp
mov -16(%rax),%rbx
mov -24(%rax),%r12
mov -32(%rax),%r14
mov -40(%rax),%r15
mov %rbx,144($context) # restore context->Rbx
mov %rbp,160($context) # restore context->Rbp
mov %r12,216($context) # restore context->R12
mov %r14,232($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_md5_block_asm_data_order
.rva .LSEH_end_md5_block_asm_data_order
.rva .LSEH_info_md5_block_asm_data_order
.section .xdata
.align 8
.LSEH_info_md5_block_asm_data_order:
.byte 9,0,0,0
.rva se_handler
___
}
print $code;
close STDOUT;