On Thu, 2022-02-03 at 16:22 +0100, Petr Pisar wrote:
> V Thu, Feb 03, 2022 at 09:26:09AM -0500, Simo Sorce napsal(a):
> > On Thu, 2022-02-03 at 15:15 +0100, Petr Pisar wrote:
> > > V Thu, Feb 03, 2022 at 08:56:20AM -0500, Simo Sorce napsal(a):
> > > > On Thu, 2022-02-03 at 10:09 +0100, Florian Weimer wrote:
> > > > > * Richard W. M. Jones:
> > > > >
> > > > > > Thinking about this a bit more, the implementation of this
feature
> > > > > > simply seems to be wrong. RPM already has a final stage
where it
> > > > > > strips ELF files and builds debuginfo. Why wasn't the
addition of
> > > > > > package notes done there?
> > > > >
> > > > > The package notes are in an allocatable section, to be mapped at
run
> > > > > time, so that they end up in core files. As far as I know,
it's not
> > > > > reliably possible to add such data to an ELF file after the
final
> > > > > (non-relocatable) link.
> > > > >
> > > > > We would have to pre-allocate some fixed space and fill it in
later.
> > > > >
> > > > > Cleaner approaches are possible if we teach the core dumper how
to copy
> > > > > select data from non-allocated sections. I think we would then
need
> > > > > just a placeholder program header.
> > > >
> > > > While it is nice to discuss future options, do we have a way to fix
> > > > FTBFS's in rawhide _now_ ?
> > > >
> > > You can disable embedding the package notes by undefining
_package_note_file
> > > macro in the package which builds in the linker flags. See
> > >
<
https://src.fedoraproject.org/rpms/perl/c/4751b01e52fad1ef9c3012675791d97...
> > > for an example. Kudos to Jitka.
> >
> > No I could not, because I still got the dependent krb5 package to bring
> > in another unavailable linker script.
> >
> > FTR we resolved this by rebuilding krb5-libs *without* notes, and then
> > I could rebuild python-gssapi also without notes.
> >
> > However I resent a bit that I had to chase down this problem myself,
> > days after it had already been exposed, and basically manually disable
> > this feature for a large part of Fedora (anything that links to krb5
> > now is missing these notes, rights?)
>
> No. krb5-libs will miss its notes. But python-gssapi will contain its correct
> notes. (Provided python-gssapi links to krb5-libs dynamically. I don't know
> whether the notes only record a source package name the ELF file belongs to,
> or whether they try to track origin of all object files the ELF consists of.)
I had to undefine notes on python-gssapi as well, so not notes, period.
Similarly I added the %undefine to every OCaml package and
every package built using OCaml today.
Rich.
--
Richard Jones, Virtualization Group, Red Hat
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