Re: [RFC PATCH v4 22/37] arm64: kernel: Skip validation of kuser32.o

From: Josh Poimboeuf
Date: Fri May 06 2022 - 13:31:51 EST


On Thu, May 05, 2022 at 11:56:45AM +0100, Mark Rutland wrote:
> The objects under arch/arm64/kernel/{vdso,vdso32}/ are all userspace objects,
> and from userspace's PoV the existing secrtions within those objects are
> correct, so I don't think those should change.
>
> How does x86 deal with its vdso objects?

On x86, we just use OBJECT_FILES_NON_STANDARD (like the up-thread patch)
to tell objtool to ignore all the vdso objects.

That should be fine for vdso, since it doesn't actually end up as text
in vmlinux.

--
Josh