Re: [RFC PATCH v2 02/13] x86/um: nommu: elf loader for fdpic

[Geert Uytterhoeven <geert@linux-m68k.org>]

Hi Johannes,

On Wed, Nov 13, 2024 at 9:37 AM Johannes Berg <johannes@sipsolutions.net> wrote:
> On Wed, 2024-11-13 at 09:36 +0100, Johannes Berg wrote:
> > On Wed, 2024-11-13 at 09:19 +0100, Geert Uytterhoeven wrote:
> > >
> > > > > > -       depends on ARM || ((M68K || RISCV || SUPERH || XTENSA) && !MMU)
> > > > > > +       depends on ARM || ((M68K || RISCV || SUPERH || UML || XTENSA) && !MMU)
> > > > >
> > > > > s/UML/X86/?
> > > >
> > > > I guess the fdpic loader can be used to X86, but this patchset only
> > > > adds UML to be able to select it.  I intended to add UML into nommu
> > > > family.
> > >
> > > While currently x86-nommu is supported for UML only, this is really
> > > x86-specific. I still hope UML will get support for other architectures
> > > one day, at which point a dependency on UML here will become wrong...
> > >
> >
> > X86 isn't set for UML, X64_32 and X64_64 are though.
> >
> > Given that the no-MMU UM support even is 64-bit only, that probably
> > should then really be (UML && X86_64).
> >
> > But it already has !MMU, so can't be selected otherwise, and it seems
> > that non-X86 UML
>
> ... would require far more changes in all kinds of places, so not sure
> I'd be too concerned about it here.

OK, up to you...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds