Re: [PATCH v3 0/2] objtool: Add option to fail build on vmlinux warnings

[Nathan Chancellor]

On Thu, Feb 06, 2025 at 06:51:27PM -0800, Josh Poimboeuf wrote:
> On Thu, Feb 06, 2025 at 10:10:36AM -0700, Nathan Chancellor wrote:
> > Right, I think gating on '!COMPILE_TEST' would not be a terrible way to
> > introduce it. We would definitely want to remove that dependency as
> > soon as possible because we want compile testers to be qble to find
> > these problems and have them be noticeable but it should make the
> > introduction of CONFIG_OBJTOOL_WERROR less disruptive.
> 
> I want to get CONFIG_OBJTOOL_WERROR merged soon.  I'm working on some
> other patches to go along with it that will hopefully ease some of the
> pain.  I'll post those soon and then hopefully we can get it into
> linux-next.

Sounds good to me, getting it into linux-next will give us a good idea
of how disruptive it may be.

> I didn't quite follow the OBJTOOL_FLAGS idea.  We already have
> OBJTOOL_ARGS which allows adding arguments (though not removing them),
> was it mean to be something like that?

Yes, I should have prefaced "if it does not already exist" since I did
not realize that there was already support for adding to objtool
arguments via an environment/make variable already.

Cheers,
Nathan