[PATCH] readelf: Warn zero-sized relocation sections

[H.J. Lu]

On Fri, Apr 17, 2020 at 8:46 AM Nick Clifton <nickc@redhat.com> wrote:
>
> Hi Guys,
>
>   I am of a mind to allow this patch, given that one of readelf's
>   main functions is to diagnose problems with ELF files.  If these
>   warnings really are a problem for users however then we could
>   provide an option to filter them out.
>
>   That said, the patch as it currently exists causes lots of new
>   failures in the linker testsuite for various targets.  Especially
>   powerpc64-linux.  There may well be others, eg alpha-linux-gnu,
>   but my regression tester is still running.  The failures are from
>   messages like this:
>
>     readelf: Warning: Section '.rela.plt': zero-sized relocation section
>
>   and
>
>     readelf: Warning: Section '.rela.dyn': zero-sized relocation section
>
>   So H.J. if you want to persist with this feature you will need to
>   either fix the tests or the check in readelf.

Hi Alan,

Any ideas why ppc64 backend generates zero-sized relocation section:

tmpdir/libcomm-data.so:
...
  [ 5] .rela.dyn         RELA            0000000000000160 000160
000000 18   A  3   0  8
...

Is this required by psABI?

-- 
H.J.