On 07/07/2017 04:20 PM, Carlos O'Donell wrote:
> On 07/07/2017 08:53 AM, Florian Weimer wrote:
>> We currently have an invalid IFUNC resolver in libgcc.a on POWER
>> (rhbz#1467526). glibc in rawhide recently started linking that into the
>> library and there are significant problems with that (rhbz#1467518).
>>
>> I'll be on PTO next week, and it does not seem likely that this is going
>> to be resolved upstream before that. If upstream (both glibc GCC are
>> involved) don't come up with a solution, I'm not sure
>>
>> If we downgrade glibc to 2.25 in rawhide, we will have to rebuild at
>> least the following packages right after that because they have a
>> GLIBC_2.26 symbol version dependency:
>>
>> inn-2.6.1-6.fc27.src.rpm
>> remctl-3.13-4.fc27.src.rpm
>> sudo-1.8.20p2-1.fc27.src.rpm
>> tmux-2.5-1.fc27.src.rpm
>> unbound-1.6.4-1.fc27.src.rpm
>> xorg-x11-server-1.19.3-6.fc27.src.rpm
>>
>> Besides the glibc downgrade, I'm not aware of anything else we could do
>> to get ready for the mass rebuild in time.
>
> IBM has worked through a patch that will fix the libgcc issue:
> https://sourceware.org/ml/libc-alpha/2017-06/msg01430.html
>
> All we need to do now is:
> * Get the gcc trunk patch into F27 gcc.
> * Rebuild gcc and libgcc.
> * Rebuild glibc.
>
> And that should be everything we need to do before the mass rebuild
> start on the 12th.
>
> I'm reaching out to Jakub/Marek on the gcc side to get help with this.
Status update:
* Get the gcc trunk patch into F27 gcc.
* Patch committed to trunk [Done -- IBM]
* Rebuild gcc and libgcc [In progress -- Red Hat]
* Blocked on several header issues and changes which make gcc FTBS.
Working on fixing the issues.
* Fedora backport [Not started]
* Rebuild gcc and libgcc [Not started]
* Rebuild glibc
* Patch committed to trunk [In progress -- IBM]
* Second round review complete, and final patch in progress.
* Sync to Fedora [Waiting -- Red Hat]
* Rebuild [Waiting -- Red Hat]
If we're lucky we can get everything ready for the 12th, but we might
need another day or two given how long it takes to build gcc on all
the arches.
--
Cheers,
Carlos.
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