On Wed, 2018-03-14 at 15:12 -0700, Laura Abbott wrote:
The kernel still doesn't have 100% parallel debuginfo because we
the vDSO binary embedded in the the image. I'd like to see about updating
debugedit to be smart enough to do the recalculation of the buildid for both
the vmlinux and the embedded vDSO.
I'd like to avoid too tight a coupling between the kernel and debugedit
so if we want/need to change how the vDSO is generated it won't break too
many things. My idea is to stick the location of the vDSO in an ELF note
so debugedit knows where to look. As long as the kernel can generate this
section correctly, debugedit can find the embedded build-id and update
It is an interesting idea, but I think still too tied to debugedit. If
at all possible we should take debugedit out of the loop completely. It
just runs way too late in the build process. I see another thread where
Andy has a good idea, that I think is more promising. Add an option to
the linker, which will run at precisely the right time. I'll reply to
that one with my thoughts.