Re: [PATCH 10/10] powerpc: select DYNAMIC_DEBUG_RELATIVE_POINTERS for PPC64

Andrew Morton
2019-04-23T19:36:15Z

On Tue, 23 Apr 2019 17:37:33 +0200 Christophe Leroy <christophe.leroy@c-s.fr> wrote:

> > --- a/arch/powerpc/Kconfig
> > +++ b/arch/powerpc/Kconfig
> > @@ -155,6 +155,7 @@ config PPC
> > select BUILDTIME_EXTABLE_SORT
> > select CLONE_BACKWARDS
> > select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN
> > + select DYNAMIC_DEBUG_RELATIVE_POINTERS if PPC64
>
> Why only PPC64 ? Won't it work with PPC32 ? Or would it be
> counter-performant on 32 bits ?

Ditto arm and i386?