"Naveen N. Rao" [off-list ref] writes:

Michael Ellerman wrote:

quoted

"Naveen N. Rao" [off-list ref] writes:

quoted

Selecting CONFIG_DEBUG_INFO_BTF results in the below warning from ld:
  ld: warning: orphan section `.BTF' from `.btf.vmlinux.bin.o' being placed in section `.BTF'

Include .BTF section in vmlinux explicitly to fix the same.

I don't see any other architectures doing this in their linker script.
Why are we special?

I think this is due to commit 83a092cf95f28 ("powerpc: Link warning for 
orphan sections"):
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83a092cf95f28

Oh haha, right :}

PS: I also see a linker warning for '.gnu.hash' if I enable 
CONFIG_RELOCATABLE, but I couldn't decipher what that was for, and if it 
should be retained.

Yeah, Joel tried to remove it but it caused breakage:

  https://lore.kernel.org/linuxppc-dev/87d0pwqweg.fsf@concordia.ellerman.id.au/ (local)


I never got around to looking at it.

cheers