Re: [PATCH v3 3/3] aarch64: Enhanced CPU diagnostics for ld.so

[Florian Weimer <fweimer@redhat.com>]

* Szabolcs Nagy:

> The 04/05/2024 12:16, Florian Weimer wrote:
>> This prints some information from struct cpu_features, and the midr_el1
>> and dczid_el0 system register contents on every CPU.
>
> thanks.
>
> i think we already rely on zva size to be the same across all cores
> (in memset) and i don't think linux allows different dczid_el0 per
> core (even if somebody built such a system).
>
> so i don't think that is needed.

Well … we've seen per-core feature sets change on some cores after
suspend/resume (although not on aarch64).  That's why we have t he
per-CPU iterator in the first place.

> i wonder if we should place a comment in init-arch.h to update
> _dl_diagnostics_cpu in case ifunc rules change as this seems
> easy to forget

I'll add a comment.

Thanks,
Florian