Re: glibc 2.22 build failure on sh4
On Fri, 2016-03-11 at 07:34 +0900, Oleg Endo wrote:
>
> On Mar 11, 2016, at 7:15 AM, John Paul Adrian Glaubitz <
> glaubitz@physik.fu-berlin.de> wrote:
>
> > Hi Aurelien!
> >
> > (CC'ing Helmut Grohne since he has been seeing this issue in
> > rebootstrap
> > as well as Oleg Endo and Kaz Kojima as they are most likely
> > interested
> > in fixing the issue in gcc being gcc/sh upstream developers)
> >
> > On 03/10/2016 11:02 PM, Aurelien Jarno wrote:
> > > The glibc package in version 2.22 which has been uploaded to sid
> > > a few
> > > days ago fails to build on sh4 [1]. I have tracked it down to a
> > > missing
> > > target specific implementation of __builtin_trap() in GCC. I have
> > > workarounded the issue by passing the -fno-delete-null-pointer
> > > -checks
> > > option to GCC. This will be available in the next upload.
> >
> > Wow, thanks a lot for tracking this down. Helmut Grohne has been
> > seeing
> > this issue in rebootstrap for a long time now and it was not until
> > glibc
> > 2.22 was uploaded when we saw this issue arise for native builds.
> >
> > I (and probably Helmut as well) are very glad this has been
> > debugged
> > now! I owe you a DebConf beer :).
> >
> > > It would be better instead if this can be fixed in GCC. An
> > > example of
> > > such a patch (for hppa) is available [3].
> >
> > Great. Maybe Oleg and Kaz could have a look at that.
> >
> > @Oleg: Should I file a gcc bug report?
>
> Yes, please.
I went ahead and created a GCC PR
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216
Let's take further discussions there.
Cheers,
Oleg
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