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hand-assemble instructions not supported in old binutils #2471

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merged 5 commits into from
Mar 11, 2025
+110 −1
Merged

hand-assemble instructions not supported in old binutils #2471

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ce7af1d
wrap all special instructions
Mar 10, 2025
cc56f6a
add assemble table
Mar 10, 2025
650e842
hand-assemble instructions not present in old binutils
Mar 10, 2025
16d5ac4
fix indentation & comment
Mar 10, 2025
56f7307
add script for regenerating asmMap
Mar 11, 2025
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64 changes: 63 additions & 1 deletion crypto/fipsmodule/aes/asm/aes-gcm-avx2-x86_64.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -958,6 +958,68 @@ sub _aes_gcm_update {
$code .= _aes_gcm_update 0;
$code .= _end_func;

print $code;
sub filter_and_print {
# This function replaces AVX2 assembly instructions with their assembled forms,
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Technically these are VAES and VPCLMULQDQ instructions, not AVX2.

# to allow the code to work on old versions of binutils (older than 2.30) that do
# not support these instructions.
my %asmMap = (
'vaesenc %ymm2, %ymm12, %ymm12' => '.byte 0xc4,0x62,0x1d,0xdc,0xe2',
'vaesenc %ymm2, %ymm13, %ymm13' => '.byte 0xc4,0x62,0x15,0xdc,0xea',
'vaesenc %ymm2, %ymm14, %ymm14' => '.byte 0xc4,0x62,0x0d,0xdc,0xf2',
'vaesenc %ymm2, %ymm15, %ymm15' => '.byte 0xc4,0x62,0x05,0xdc,0xfa',
'vaesenclast %ymm10, %ymm12, %ymm12' => '.byte 0xc4,0x42,0x1d,0xdd,0xe2',
'vaesenclast %ymm10, %ymm13, %ymm13' => '.byte 0xc4,0x42,0x15,0xdd,0xea',
'vaesenclast %ymm2, %ymm12, %ymm12' => '.byte 0xc4,0x62,0x1d,0xdd,0xe2',
'vaesenclast %ymm3, %ymm13, %ymm13' => '.byte 0xc4,0x62,0x15,0xdd,0xeb',
'vaesenclast %ymm5, %ymm14, %ymm14' => '.byte 0xc4,0x62,0x0d,0xdd,0xf5',
'vaesenclast %ymm6, %ymm15, %ymm15' => '.byte 0xc4,0x62,0x05,0xdd,0xfe',
'vpclmulqdq $0x00, %ymm2, %ymm12, %ymm4' => '.byte 0xc4,0xe3,0x1d,0x44,0xe2,0x00',
'vpclmulqdq $0x00, %ymm2, %ymm12, %ymm5' => '.byte 0xc4,0xe3,0x1d,0x44,0xea,0x00',
'vpclmulqdq $0x00, %ymm3, %ymm13, %ymm4' => '.byte 0xc4,0xe3,0x15,0x44,0xe3,0x00',
'vpclmulqdq $0x00, %ymm4, %ymm3, %ymm2' => '.byte 0xc4,0xe3,0x65,0x44,0xd4,0x00',
'vpclmulqdq $0x00, %ymm4, %ymm3, %ymm5' => '.byte 0xc4,0xe3,0x65,0x44,0xec,0x00',
'vpclmulqdq $0x00, %ymm5, %ymm3, %ymm0' => '.byte 0xc4,0xe3,0x65,0x44,0xc5,0x00',
'vpclmulqdq $0x00, %ymm5, %ymm4, %ymm0' => '.byte 0xc4,0xe3,0x5d,0x44,0xc5,0x00',
'vpclmulqdq $0x00, %ymm7, %ymm2, %ymm6' => '.byte 0xc4,0xe3,0x6d,0x44,0xf7,0x00',
'vpclmulqdq $0x00, %ymm8, %ymm2, %ymm2' => '.byte 0xc4,0xc3,0x6d,0x44,0xd0,0x00',
'vpclmulqdq $0x01, %ymm0, %ymm6, %ymm2' => '.byte 0xc4,0xe3,0x4d,0x44,0xd0,0x01',
'vpclmulqdq $0x01, %ymm1, %ymm6, %ymm0' => '.byte 0xc4,0xe3,0x4d,0x44,0xc1,0x01',
'vpclmulqdq $0x01, %ymm2, %ymm12, %ymm4' => '.byte 0xc4,0xe3,0x1d,0x44,0xe2,0x01',
'vpclmulqdq $0x01, %ymm2, %ymm12, %ymm6' => '.byte 0xc4,0xe3,0x1d,0x44,0xf2,0x01',
'vpclmulqdq $0x01, %ymm3, %ymm13, %ymm4' => '.byte 0xc4,0xe3,0x15,0x44,0xe3,0x01',
'vpclmulqdq $0x01, %ymm5, %ymm2, %ymm3' => '.byte 0xc4,0xe3,0x6d,0x44,0xdd,0x01',
'vpclmulqdq $0x01, %ymm5, %ymm3, %ymm1' => '.byte 0xc4,0xe3,0x65,0x44,0xcd,0x01',
'vpclmulqdq $0x01, %ymm5, %ymm4, %ymm1' => '.byte 0xc4,0xe3,0x5d,0x44,0xcd,0x01',
'vpclmulqdq $0x01, %ymm5, %ymm4, %ymm2' => '.byte 0xc4,0xe3,0x5d,0x44,0xd5,0x01',
'vpclmulqdq $0x01, %ymm6, %ymm2, %ymm3' => '.byte 0xc4,0xe3,0x6d,0x44,0xde,0x01',
'vpclmulqdq $0x01, %ymm6, %ymm4, %ymm2' => '.byte 0xc4,0xe3,0x5d,0x44,0xd6,0x01',
'vpclmulqdq $0x10, %ymm2, %ymm12, %ymm4' => '.byte 0xc4,0xe3,0x1d,0x44,0xe2,0x10',
'vpclmulqdq $0x10, %ymm3, %ymm13, %ymm4' => '.byte 0xc4,0xe3,0x15,0x44,0xe3,0x10',
'vpclmulqdq $0x10, %ymm5, %ymm3, %ymm2' => '.byte 0xc4,0xe3,0x65,0x44,0xd5,0x10',
'vpclmulqdq $0x10, %ymm5, %ymm4, %ymm2' => '.byte 0xc4,0xe3,0x5d,0x44,0xd5,0x10',
'vpclmulqdq $0x10, %ymm7, %ymm2, %ymm2' => '.byte 0xc4,0xe3,0x6d,0x44,0xd7,0x10',
'vpclmulqdq $0x10, %ymm8, %ymm2, %ymm2' => '.byte 0xc4,0xc3,0x6d,0x44,0xd0,0x10',
'vpclmulqdq $0x11, %ymm2, %ymm12, %ymm4' => '.byte 0xc4,0xe3,0x1d,0x44,0xe2,0x11',
'vpclmulqdq $0x11, %ymm2, %ymm12, %ymm7' => '.byte 0xc4,0xe3,0x1d,0x44,0xfa,0x11',
'vpclmulqdq $0x11, %ymm3, %ymm13, %ymm4' => '.byte 0xc4,0xe3,0x15,0x44,0xe3,0x11',
'vpclmulqdq $0x11, %ymm4, %ymm3, %ymm1' => '.byte 0xc4,0xe3,0x65,0x44,0xcc,0x11',
'vpclmulqdq $0x11, %ymm4, %ymm3, %ymm2' => '.byte 0xc4,0xe3,0x65,0x44,0xd4,0x11',
'vpclmulqdq $0x11, %ymm5, %ymm3, %ymm4' => '.byte 0xc4,0xe3,0x65,0x44,0xe5,0x11',
'vpclmulqdq $0x11, %ymm5, %ymm4, %ymm3' => '.byte 0xc4,0xe3,0x5d,0x44,0xdd,0x11',
);
for my $line (split("\n",$code)) {
my $trimmed;
$trimmed = $line;
$trimmed =~ s/^\s+//;
$trimmed =~ s/\s+(#.*)?$//;
if (exists $asmMap{$trimmed}) {
$line = $asmMap{$trimmed};
}
print $line,"\n";
}
}

filter_and_print();

close STDOUT or die "error closing STDOUT: $!";
exit 0;