Re: Very strange compiler/linker related build failures in rawhide

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The LTO break Ruby on various platforms.


https://koji.fedoraproject.org/koji/taskinfo?taskID=47582573

vs

https://koji.fedoraproject.org/koji/taskinfo?taskID=47621733

(Note these are my experimental builds testing single test case).


The only difference is redhat-rpm-config 162-1.fc33 => 163-1.fc33.
Adding `%define _lto_cflags %{nil}` helped to recover, but if it was at
least behaving the same on all platforms :/


And this is Koschei failure: https://koschei.fedoraproject.org/package/ruby

Looking at the full test suite, it seems it causes some troubles to
SIGSEV signal handler (Ruby spawns subprocess and kills it).


Vít



Dne 24. 07. 20 v 10:31 Fabio Valentini napsal(a):
> Hi all,
>
> I'm starting to see various very strange kinds of build failures in
> rawhide, that seem to have started with either of these updates (or a
> combination of them):
>
> - annobin 9.21-1.fc33 → 9.22-1.fc33
> - binutils 2.34.0-6.fc33 → 2.34.0-7.fc33
> - elfutils 0.179-2.fc33 → 0.180-2.fc33
> - glibc 2.31.9000-13.fc33 → 2.31.9000-14.fc33
>
> These rawhide updates all happened at roughly the same time, so it's
> difficult to say which one of them is to blame (if any of them).
>
> One error I've seen in libreoffice is a gcc / annobin segfault:
>
> [build CXX] vcl/unx/gtk3/gtk3gtkinst.cxx
> *** WARNING *** there are active plugins, do not report this as a bug
> unless you can reproduce it without enabling any plugins.
> Event                            | Plugins
> PLUGIN_FINISH_UNIT               | annobin: Generate final annotations
> PLUGIN_START_UNIT                | annobin: Generate global annotations
> PLUGIN_ALL_PASSES_START          | annobin: Generate per-function annotations
> PLUGIN_ALL_PASSES_END            | annobin: Register per-function end symbol
> /builddir/build/BUILD/libreoffice-6.4.5.2/vcl/workben/vcldemo.cxx: In
> destructor 'virtual DemoWin::RenderThread::~RenderThread()':
> /builddir/build/BUILD/libreoffice-6.4.5.2/vcl/workben/vcldemo.cxx:1733:18:
> internal compiler error: Segmentation fault
>  1733 |             join();
>       |                  ^
>
> Other errors look like this one from switchboard-plug-onlineaccounts:
>
> src/libonline-accounts.so.p/Authentification/Server.c: In function
> ‘online_accounts_server_on_bus_acquired’:
> src/libonline-accounts.so.p/Authentification/Server.c:498:2: error:
> function ‘__errno_location’ is initialized like a variable
>   498 |  gint errno = 0;
>       |  ^~~~
>
> Where errno is neither __errno_location, nor a function, but a gint??
>
> Other failures I've seen end up with linker failures, line these, from
> postgresql:
>
> ld: undefined reference to `postgresql_subtrans__checkpoint__start_semaphore'
>
> Does somebody have a clue what's going on here? It's currently
> blocking rawhide composes because libreoffice fails to build /
> install.
>
> See also: https://pagure.io/releng/failed-composes/issue/1571
>
> Thanks,
> Fabio
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