Date: Fri, 28 Feb 2014 18:05:37 +0100 From: Dimitry Andric <dimitry@andric.com> To: Don Lewis <truckman@FreeBSD.org> Cc: imb@protected-networks.net, freebsd-current@FreeBSD.org Subject: Re: firebox build fails post clang-3.4 merge Message-ID: <53FD6BE5-267D-4732-9E85-F99C8AB0EF33@andric.com> In-Reply-To: <201402270057.s1R0vkjH084327@gw.catspoiler.org> References: <201402270057.s1R0vkjH084327@gw.catspoiler.org>
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--Apple-Mail=_5AA18CEE-D296-40C2-946E-FD8153C38B62 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On 27 Feb 2014, at 01:57, Don Lewis <truckman@FreeBSD.org> wrote: > On 26 Feb, Michael Butler wrote: >> On 02/18/14 12:10, Michael Butler wrote: >>> Is anyone else seeing firefox failing to install after the clang-3.4 >>> merge? As in xpcshell dumping core .. >> >> An update .. >> >> Recompiling with GCC48 on -current yields the same result. Seems to run >> correctly when invoked from the command-line but seg-faults with "errno >> = 4" (invalid instruction) from the build >> >> Giving up and using the Linux port .. :-( > > I've also seen this problem with clang-3.4 on i386. It looks like a > clang bug to me. Clang is putting ud2 instructions in its output which > are guaranteed to fault when it compiles nsAppRunner.cpp. See > <http://www.freebsd.org/cgi/query-pr.cgi?pr=187103>. > > I tried compiling the offending file with gcc46 and didn't see the > problem in the assembly output. Indeed, this is clang bug with stdcall calling conventions. See the upstream bug http://llvm.org/PR19007 (thanks to Benjamin Kramer for reducing this). I have followed up on the bug with a workaround, which can be used until this bug is fixed upstream, and I can import the fix. -Dimitry --Apple-Mail=_5AA18CEE-D296-40C2-946E-FD8153C38B62 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) iEUEARECAAYFAlMQweEACgkQsF6jCi4glqN1ogCcDyBNT6p1C714k9iqt4QJzcIX X5UAmJ+gDGGomQkfNzu7Q7FVkcW5CNg= =4aVK -----END PGP SIGNATURE----- --Apple-Mail=_5AA18CEE-D296-40C2-946E-FD8153C38B62--
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