[Gluster-devel] Compilation with gcc 7.x

[Amar Tumballi]

On Wed, Jul 5, 2017 at 2:09 PM, Niels de Vos <ndevos at redhat.com> wrote:

> On Wed, Jul 05, 2017 at 12:45:11PM +0530, Amar Tumballi wrote:
> > Csaba,
> >
> > Thanks for looking into this.
> >
> > On Tue, Jul 4, 2017 at 5:30 PM, Csaba Henk <chenk at redhat.com> wrote:
> >
> > > Hi list,
> > >
> > > I've compiled glusterfs with gcc 7.x (to be precise, with 7.1.1),
> > > which is soon to get its prime time as the C compiler of
> > > Fedora 26.
> > >
> > > The Release Notes (https://gcc.gnu.org/gcc-7/changes.html)
> > > give account of a broad list of new and improved warnings...
> > > and that shows. While with gcc 6.x the only warning I had
> > > is "lchmod is not implemented and will always fail", with
> > > gcc 7.x I got 218 warnings alltogether. For reference, I
> > > attach the excerpted warnings from the compilation output.
> > >
> > > Went through the logs, and I see it is in project's interest to fix
> them.
> >
> > Technically, fixing these warnings would be good to reduce our coverity
> > warnings too in many cases. I am all for it.
> >
> >
> > > Are you aware of this? Is there any plan what to do about it?
> > >
> > >
> > I was not aware of it. Thanks for pointing it out. I propose we to fix it
> > before 4.0 release branch out, and start having  gcc7.x job compiling as
> > part of smoke.
> >
> > We can keep the smoke job non-voting till some time, and can turn the
> knob
> > ON someday, say October 15th for start voting -1 on any warnings. Others,
> > any comments?
>
> We have similar job that checks for certain string-format warnings [1].
> I think it is enabled to vote, otherwise only very few will pay
> attention to the test results.
>
> Instead of cluttering the patch reviews with non-voting, the gcc-7.1
> compile can be sent to the mailinglist similar to the Coverity results?
> Maybe with some simple statistics in the beginning of the email, showing
> how many warnings/error have been detected? This can be a regular job,
> just build the RPMs within a Fedora Rawhide mock environment. Once the
> next gcc version is out, it will get used automatically too (and we'll
> test building with the latest headers/libraries as well).
>
> Niels, Ack! Makes sense to add it to 8hour tests. But it will still have
to not make the test state as 'Failed'. Mainly because this is known to be
not fixed before October.

Nigel, Can we add gcc7.1 to our 8 hourly tests on master?


> Thanks,
> Niels
>
> 1. https://build.gluster.org/job/strfmt_errors/
>



-- 
Amar Tumballi (amarts)
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