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Fix handling of the "0:" label in arm-xlate.pl

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When $label == "0", $label is not truthy, so `if ($label)` thinks there isn't
a label. Correct this by looking at the result of the s/// command.

Verified that there are no changes in the .S files created during a normal
build, and that the "0:" labels appear in the translation given in the error
report (and they are the only difference in the before and after output).

Fixes #21647

Change-Id: I5f2440100c62360bf4bdb7c7ece8dddd32553c79

Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21653)
This commit is contained in:
Tom Cosgrove 2023-08-03 19:43:17 +01:00 committed by Tomas Mraz
parent ec34c887d1
commit 9607f5ccf2
1 changed files with 2 additions and 3 deletions
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5
crypto/perlasm/arm-xlate.pl
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@ -170,9 +170,8 @@ while(my $line=<>) {
}
{
$line =~ s|(^[\.\w]+)\:\s*||;
my $label = $1;
if ($label) {
if ($line =~ s|(^[\.\w]+)\:\s*||) {
my $label = $1;
printf "%s:",($GLOBALS{$label} or $label);
}
}