Date: Fri, 11 Mar 2016 11:07:34 +0100 From: Dimitry Andric <dim@FreeBSD.org> To: Willem Jan Withagen <wjw@digiware.nl> Cc: freebsd-toolchain@freebsd.org Subject: Re: Running Clang 3.7 on Current.... Message-ID: <7D7F6AF9-4E33-4BE3-85CD-2A02E3D209B5@FreeBSD.org> In-Reply-To: <56E28F8A.5000201@digiware.nl> References: <56E28F8A.5000201@digiware.nl>
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--Apple-Mail=_BD7D170D-AE49-4C79-ACB9-92202F3983B6 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 11 Mar 2016, at 10:27, Willem Jan Withagen <wjw@digiware.nl> wrote: >=20 > CURRENT has recently received the upgrade to Clang 3.8. >=20 > Now I run into the problem that some of the tests with Ceph are all of = a > sudden failing.... > Mainly manifesting itself because of access errors thru pointers in > very complex records structs. (Which is almost always in C++ :) ) > Either pointers are 0x0, or to invalid memory. >=20 > This can be attributed to a few things, some of them: > - changes in the Ceph code > Which is possible since I rebased since I started using 3.8. > - Subtle difference in corner cases, and overlaping structs get = written > wrongly. > - A compiler bug > - other issues .... >=20 > Ceph is run thru extensive tests while building, after which there is = another > large QA testset run by the Ceph-team in their openstack with even = more and > complexer tests. So real programming "errors" would be caught in this = process. >=20 > To exclude the compiler I'd like to run a compile/build/test run with = 3.7 > Can I just install the ports 3.7 version without endangering my 3.8 = current > installation. Then it'll just be set 'CC=3Dclang37 C++=3Dclang37++ = make' and > see what comes of it. Yes, that should work without any problems. -Dimitry --Apple-Mail=_BD7D170D-AE49-4C79-ACB9-92202F3983B6 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 v2.0.29 iEYEARECAAYFAlbimO0ACgkQsF6jCi4glqMS3ACgkh/91BpelBXOO7i93/cQrBTo cJwAnA8lBXz/NXosL2lgXEhJAQOvNC60 =9fhA -----END PGP SIGNATURE----- --Apple-Mail=_BD7D170D-AE49-4C79-ACB9-92202F3983B6--
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