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Re: glibc 2.22 build failure on sh4

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.


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