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Date:	Thu, 10 Jul 2014 09:48:10 +0100
From:	Will Deacon <will.deacon@....com>
To:	AKASHI Takahiro <takahiro.akashi@...aro.org>
Cc:	"wad@...omium.org" <wad@...omium.org>,
	Catalin Marinas <Catalin.Marinas@....com>,
	"dsaxena@...aro.org" <dsaxena@...aro.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linaro-kernel@...ts.linaro.org" <linaro-kernel@...ts.linaro.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH v4 2/2] arm64: Add seccomp support

On Thu, Jul 10, 2014 at 05:33:50AM +0100, AKASHI Takahiro wrote:
> Will,
> 
>  >  (1) Updating syscallno based on w8, but this ties us to the current ABI
>  >      and could get messy if this register changes in the future.
> 
> So, is this the conclusion that I should follow?

I think so, with the exception that if the tracer/debugger sets it to -1 to
abort the syscall, then we should restore the original value.

Will
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