[RFC PATCH v2 1/1] arm64: Implement stack trace termination record

[Mark Brown]

On Thu, Apr 01, 2021 at 10:24:04PM -0500, madvenka at linux.microsoft.com wrote:

> Reliable stacktracing requires that we identify when a stacktrace is
> terminated early. We can do this by ensuring all tasks have a final
> frame record at a known location on their task stack, and checking
> that this is the final frame record in the chain.

Reviewed-by: Mark Brown <broonie at kernel.org>
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