Re: [RFC PATCH 0/5] Dovetail: Real-time Exception Handling

[Richard Weinberger <richard@sigma-star.at>]

On Dienstag, 8. April 2025 18:58 Jan Kiszka wrote:
> On 08.04.25 14:34, Nikolaus Funk wrote:
> > From: Richard Weinberger <richard@nod.at>
> > 
> > This is the Dovetail side of the real-time exception handling
> > (aka real-time signal) feature.
> > 
> > In its current form, it's a bit larger than expected because it also
> > includes the signal frame helper functions. It's debatable whether
> > these should be part of Dovetail or Xenomai.
> > 
> > The smaller, but much more important changes are for ARM32 and
> > ARM64. These allow fast return from exception handling so that
> > Xenomai can decide whether an exception should be propagated
> > to Linux or not.
> 
> Is this targeting latest dovetail (6.14.y-dovetail-rebase) or something
> older? Did you already look into how well backporting works? Just to
> collect already information upfront.

It is based on v6.14-dovetail1-rebase.
So gar porting to other releases worked okay'isch.

In ARM64 this changed caused a little friction:
2e8a1acea859 ("arm64: signal: Improve POR_EL0 handling to avoid uaccess failures")

Thanks,
//richard


-- 
​​​​​sigma star gmbh | Eduard-Bodem-Gasse 6, 6020 Innsbruck, AUT UID/VAT Nr:
ATU 66964118 | FN: 374287y