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

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(sorry, fat-fingered that)

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.

johannes





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