package/security/openssl/x32.patch

   1 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   2 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   3 #
   4 # T2 SDE: package/.../openssl/x32.patch
   5 # Copyright (C) 2016 The T2 SDE Project
   6 #
   7 # More information can be found in the files COPYING and README.
   8 #
   9 # This patch file is dual-licensed. It is available under the license the
  10 # patched project is licensed under, as long as it is an OpenSource license
  11 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  12 # of the GNU General Public License as published by the Free Software
  13 # Foundation; either version 2 of the License, or (at your option) any later
  14 # version.
  15 # --- T2-COPYRIGHT-NOTE-END ---
  16
  17 When building on x32 systems where the default type is 32bit, make sure
  18 we can transparently represent 64bit integers.  Otherwise we end up with
  19 build errors like:
  20 /usr/bin/perl asm/ghash-x86_64.pl elf > ghash-x86_64.s
  21 Integer overflow in hexadecimal number at asm/../../perlasm/x86_64-xlate.pl line 201, <> line 890.
  22 ...
  23 ghash-x86_64.s: Assembler messages:
  24 ghash-x86_64.s:890: Error: junk '.15473355479995e+19' after expression
  25
  26 We don't enable this globally as there are some cases where we'd get
  27 32bit values interpreted as unsigned when we need them as signed.
  28
  29 Reported-by: Bertrand Jacquin <bertrand at jacquin.bzh>
  30 URL: https://bugs.gentoo.org/542618
  31 ---
  32  crypto/perlasm/x86_64-xlate.pl | 4 ++++
  33  1 file changed, 4 insertions(+)
  34
  35 diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
  36 index aae8288..0bf9774 100755
  37 --- a/crypto/perlasm/x86_64-xlate.pl
  38 +++ b/crypto/perlasm/x86_64-xlate.pl
  39 @@ -195,6 +195,10 @@ my %globals;
  40      sub out {
  41         my $self = shift;
  42
  43 +       # When building on x32 ABIs, the expanded hex value might be too
  44 +       # big to fit into 32bits.  Enable transparent 64bit support here
  45 +       # so we can safely print it out.
  46 +       use bigint;
  47         if ($gas) {
  48             # Solaris /usr/ccs/bin/as can't handle multiplications
  49             # in $self->{value}
  50 --
  51 2.3.3