linux-kernel - Re: [PATCH] arm64: Expose TASK

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Message-ID: <20160817103006.GB20762@e104818-lin.cambridge.arm.com>
Date:	Wed, 17 Aug 2016 11:30:06 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Christopher Covington <cov@...eaurora.org>
Cc:	Will Deacon <will.deacon@....com>,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Mark Rutland <mark.rutland@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	James Hogan <james.hogan@...tec.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Jon Masters <jcm@...hat.com>,
	Jeremy Linton <jeremy.linton@....com>
Subject: Re: [PATCH] arm64: Expose TASK_SIZE to userspace via auxv

On Tue, Aug 16, 2016 at 02:32:29PM -0400, Christopher Covington wrote:
> Some userspace applications need to know the maximum virtual address they can
> use (TASK_SIZE).

Just curious, what are the cases needing TASK_SIZE in user space?

-- 
Catalin