Re: [PATCH v6 00/29] Warn on orphan section placement

[Kees Cook]

On Tue, Sep 01, 2020 at 11:02:02AM -0700, Nick Desaulniers wrote:
> On Tue, Sep 1, 2020 at 8:17 AM Kees Cook <keescook@xxxxxxxxxxxx> wrote:
> >
> > On Tue, Sep 01, 2020 at 10:16:47AM +0200, Ingo Molnar wrote:
> > > > This is with:
> > > >
> > > >   GNU ld version 2.25-17.fc23
> >
> > (At best, this is from 2015 ... but yes, min binutils in 2.23.)
> 
> Ah, crap! Indeed arch/powerpc/Makefile wraps this in ld-option.

Yeah, I totally missed that too. :)

> Uh oh, the ppc vdso uses cc-ldoption which was removed! (I think by
> me; let me send patches)  How is that not an error?  Yes, guilty,
> officer.
> commit 055efab3120b ("kbuild: drop support for cc-ldoption").
> Did I not know how to use grep, or?  No, it is
> commit f2af201002a8 ("powerpc/build: vdso linker warning for orphan sections")
> that is wrong.

Eek, yeah, the vdso needs fixing; whoops. Lucky for my series, I only need
ld-option! ;)

(Doing test builds now...)

-- 
Kees Cook