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

[Andrew Morton]

On Tue, 23 Apr 2019 17:37:33 +0200 Christophe Leroy <christophe.leroy@xxxxxx> 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?