[Cc linuxppc-dev] Dominique Martinet wrote:
Alan Maguire wrote on Thu, Jun 15, 2023 at 03:31:49PM +0100:However the problem I suspect is this: 51 .debug_info 0a488b55 0000000000000000 0000000000000000 026f8d20 2**0 CONTENTS, READONLY, DEBUGGING [...] The debug info hasn't been stripped, so I suspect the packaging spec file or equivalent - in perhaps trying to preserve the .BTF section - is preserving debug info too. DWARF needs to be there at BTF generation time in vmlinux but is usually stripped for non-debug packages.Thanks Alan and Eduard! I guess I should have checked that first, it helps. We're not stripping anything in vmlinuz for other archs -- the linker script already should be including only the bare minimum to decompress itself (+compressed useful bits), so I guess it's a Kbuild issue for the arch.
For a related discussion, see: http://lore.kernel.org/CAK18DXZKs2PNmLndeGYqkPxmrrBR=6ca3bhyYCj=GhyA7dHfAQ@xxxxxxxxxxxxxx
We can add a strip but I unfortunately have no way of testing ppc build, I'll ask around the build linux-kbuild and linuxppc-dev lists if that's expected; it shouldn't be that bad now that's figured out.
Stripping vmlinux would indeed be the way to go. As mentioned in the above link, fedora also packages a strip'ed vmlinux for ppc64le:
https://src.fedoraproject.org/rpms/kernel/blob/4af17bffde7a1eca9ab164e5de0e391c277998a4/f/kernel.spec#_1797 - Naveen
