[PATCH v1 15/20] arm64: add POE signal support

Joey Gouly joey.gouly at arm.com
Tue Oct 10 02:58:02 PDT 2023


Hi Mark,

On Mon, Oct 09, 2023 at 03:49:29PM +0100, Mark Brown wrote:
> On Thu, Oct 05, 2023 at 03:34:29PM +0100, Mark Brown wrote:
> > On Wed, Sep 27, 2023 at 03:01:18PM +0100, Joey Gouly wrote:
> > > Add PKEY support to signals, by saving and restoring POR_EL0 from the stackframe.
> 
> > It'd be nice to have at least a basic test that validates that we
> > generate a POE signal frame when expected, though that should be a very
> > minor thing which is unlikely to ever actually spot anything.
> 
> Actually, now I think about it we at least need an update to the frame
> parser in userspace so it knows about the new frame.  Without that it'll
> warn whenver it parses the signal context on any system that has POE
> enabled.

Do you mean in libc?

Thanks,
Joey



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