Bug 15379

Summary: systemd invokes dlopen on libelf/libdw but does not RDEPENDS on it
Product: [Build System, Metadata & Runtime] OE-Core Reporter: Nick Owens <nick.owens>
Component: coreAssignee: Nick Owens <nick.owens>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: Medium+ CC: meta.mr.watcher, meta.watcher, raj.khem, randy.macleod, ross.burton, simone.p.weiss
Version: 4.0.15   
Target Milestone: 5.0 M3   
Hardware: All   
OS: arm   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)

Description Nick Owens 2024-01-31 22:03:24 UTC 
when built with elfutils, systemd (specifically systemd-coredump) will try to dlopen libelf/libdw for symbolization of information from the core.

https://github.com/systemd/systemd/blob/main/src/shared/elf-util.c#L90

the systemd recipe does not pull in libelf/libdw via RDEPENDS or RRECOMMENDS, so these do not end up in the final image for systemd-coredump's use.

i was carrying this around in a bbappend, but i don't know if that's correct.

PACKAGECONFIG[elfutils] = "-Delfutils=true,-Delfutils=false,elfutils,libelf libdw"
Comment 1 Khem Raj 2024-01-31 22:12:25 UTC 
I think adding it via reccommends might be appropriate here.

PACKAGECONFIG[elfutils] = "-Delfutils=true,-Delfutils=false,,,libelf libdw"
Comment 2 Khem Raj 2024-01-31 22:23:10 UTC 
Here is PACKAGECONFIG syntax for completeness - https://docs.yoctoproject.org/ref-manual/variables.html?highlight=build+deps+f1#term-PACKAGECONFIG
Comment 3 Randy MacLeod 2024-02-01 15:48:22 UTC 
Nick, can you please send a patch to the oe-core list?
Comment 4 Nick Owens 2024-02-01 21:18:15 UTC 
(In reply to Randy MacLeod from comment #3)
> Nick, can you please send a patch to the oe-core list?

done.
Comment 5 Nick Owens 2024-02-05 17:59:51 UTC 
it appears this was merged. thanks!

https://git.openembedded.org/openembedded-core/commit/?id=f7366f44fd7d0bc5a5b073cec9c68ffd8258903c