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Re: Requirements on Binutils and Linux kernel for GCC + Libsanitizer (was: Re: Bootstrap broken on x86_64 Linux?)
- From: Jakub Jelinek <jakub at redhat dot com>
- To: Kostya Serebryany <kcc at google dot com>
- Cc: FX <fxcoudert at gmail dot com>, GCC Development <gcc at gcc dot gnu dot org>, Konstantin Serebryany <konstantin dot s dot serebryany at gmail dot com>, Tobias Burnus <burnus at net-b dot de>, Dmitry Vyukov <dvyukov at google dot com>, Dodji Seketeli <dodji at redhat dot com>
- Date: Tue, 12 Nov 2013 08:52:47 +0100
- Subject: Re: Requirements on Binutils and Linux kernel for GCC + Libsanitizer (was: Re: Bootstrap broken on x86_64 Linux?)
- Authentication-results: sourceware.org; auth=none
- References: <BB73D69C-56DB-410B-9E8D-B66F2652A2D9 at gmail dot com> <DC9CBACA-ACD2-490D-8355-8F68186C4E55 at gmail dot com> <527F5D05 dot 1020601 at net-b dot de> <A83B7A88-A3DD-472C-90E9-913F2B194B6F at gmail dot com> <CAGQ9bdzQX6A1R-EvhqUDypNVgaquc0C3zqUM3fkVE7xSz70R9w at mail dot gmail dot com> <CAGQ9bdw4cLRJGbbMD+vTkg5RPNKsM6kU6e+OfM6emUqMRk5RbQ at mail dot gmail dot com> <52B586CE-8C2A-44A6-A402-6B7DAFD8A65B at gmail dot com> <CAN=P9piBNfik2J+McH09DHTfB3_FRs4VEEQjdoBdAPCVEuzXuA at mail dot gmail dot com>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Tue, Nov 12, 2013 at 11:34:41AM +0400, Kostya Serebryany wrote:
> On Sun, Nov 10, 2013 at 10:34 PM, FX <fxcoudert@gmail.com> wrote:
>
> > > Unfortunately, we are not able to keep up with the old kernels.
> > > Two possible ways to go:
> > > - disable libsanitizer on older kernels
> > > - someone needs to work with us in upstream repository (llvm) to keep
> > the code old-kernel-compatible
> >
> > (It appears to be not only kernel, but binutils.)
> >
> > I think, at least the following should be done:
> >
> > - identify and document the minimal requirements
> >
>
> Agree. From our side we can only guarantee Ubuntu 12.04 and higher.
For making sure libsanitizer at least compiles, just installing
/usr/include/ trees from a couple of important still supported distributions
from various eras and just using -isystem /path/to/distro1/usr/include/ as
additional (very quick) test of building the libraries on your bots
wouldn't be IMHO that difficult.
Jakub