Re: [Libunwind-devel] [PATCH] [RFC] add fallback logic for coredump register access

[Dave Watson]

On 02/14/17 01:22 PM, Mike Frysinger wrote:
> Caveat: I haven't spent time looking into the libunwind API and seeing
> if these arches need their own mapping, or if they have more registers
> in the coredump than libunwind exposes.
> 
> At least it no longer fails to compile? :)
> ---
> +#elif defined(UNW_TARGET_IA64) || defined(UNW_TARGET_HPPA) || 
> defined(UNW_TARGET_PPC32) || defined(UNW_TARGET_PPC64)
> +  if (regnum >= ARRAY_SIZE(ui->prstatus->pr_reg))
> +    goto badreg;

Are you able to test any of these arches ? :)  The travis build for
ppc is currently off because of other issues, and I don't think it
have support for the other two.  

I suspect all of these have other lingering issues, and we should just
let it be unless someone wants to dive in and spend more time on them.