[PATCH] aarch64: MTE compatible strchrnul

[Florian Weimer]

* Andrea Corallo:

> Introduce an Arm MTE compatible strchrnul implementation.
>
> Benchmarked on Cortex-A72, Cortex-A53, Neoverse N1 does not show
> performance regressions.
>
> Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>

As a very high-level comment, I would expect some sort of markup in the
file that this implementation is now MTE-safe, similar to what we have
for executable stacks.

Or do you plan to handle that in some other fashion?

Thanks,
Florian