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41 lines
1.5 KiB
Diff
41 lines
1.5 KiB
Diff
From: Mike Frysinger <vapier@gentoo.org>
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Date: Sat, 21 Mar 2015 06:01:25 -0400
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Subject: crypto: use bigint in x86-64 perl
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When building on x32 systems where the default type is 32bit, make sure
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we can transparently represent 64bit integers. Otherwise we end up with
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build errors like:
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/usr/bin/perl asm/ghash-x86_64.pl elf > ghash-x86_64.s
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Integer overflow in hexadecimal number at asm/../../perlasm/x86_64-xlate.pl line 201, <> line 890.
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...
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ghash-x86_64.s: Assembler messages:
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ghash-x86_64.s:890: Error: junk '.15473355479995e+19' after expression
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We don't enable this globally as there are some cases where we'd get
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32bit values interpreted as unsigned when we need them as signed.
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Reported-by: Bertrand Jacquin <bertrand@jacquin.bzh>
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Bug: https://bugs.gentoo.org/542618
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Upstream-Bug: https://rt.openssl.org/Ticket/Display.html?id=3759&user=guest&pass=guest
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---
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crypto/perlasm/x86_64-xlate.pl | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
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index d19195e..96d9edd 100755
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--- a/crypto/perlasm/x86_64-xlate.pl
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+++ b/crypto/perlasm/x86_64-xlate.pl
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@@ -269,6 +269,10 @@ my %globals;
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$self->{base} = $self->{index}; $self->{index} = $1;
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}
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+ # When building on x32 ABIs, the expanded hex value might be too
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+ # big to fit into 32bits. Enable transparent 64bit support here
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+ # so we can safely print it out.
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+ use bigint;
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if ($gas) {
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$self->{label} =~ s/^___imp_/__imp__/ if ($flavour eq "mingw64");
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--
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2.15.1
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