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Message-ID: <Zr4avB6+U4tLDy8E@e133380.arm.com>
Date: Thu, 15 Aug 2024 16:11:56 +0100
From: Dave Martin <Dave.Martin@....com>
To: Mark Brown <broonie@...nel.org>
Cc: Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>, Jonathan Corbet <corbet@....net>,
Andrew Morton <akpm@...ux-foundation.org>,
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"Rick P. Edgecombe" <rick.p.edgecombe@...el.com>,
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Subject: Re: [PATCH v10 23/40] arm64/signal: Set up and restore the GCS
context for signal handlers
On Thu, Aug 15, 2024 at 03:45:45PM +0100, Mark Brown wrote:
> On Thu, Aug 15, 2024 at 02:37:22PM +0100, Dave Martin wrote:
>
> > Is there a test for taking and returning from a signal on an alternate
> > (main) stack, when a shadow stack is in use? Sounds like something
> > that would be good to check if not.
>
> Not specifically for any of the architectures.
Can you see any reason why this shouldn't work?
Maybe I'll hacking up a test if I get around to it, but don't take this
as a promise!
Cheers
---Dave
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