linux-kernel - Re: [PATCH v10 1/3] arm64: Add __NR_* definitions for compat syscalls

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Date:	Wed, 28 Jan 2015 15:31:49 -0600
From:	Timur Tabi <timur@...eaurora.org>
To:	AKASHI Takahiro <takahiro.akashi@...aro.org>
Cc:	Al Viro <viro@...iv.linux.org.uk>, eparis@...hat.com,
	rgb@...hat.com, Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	linaro-kernel@...ts.linaro.org, Deepak Saxena <dsaxena@...aro.org>,
	lkml <linux-kernel@...r.kernel.org>, linux-audit@...hat.com,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v10 1/3] arm64: Add __NR_* definitions for compat syscalls

On Fri, Jul 4, 2014 at 2:28 AM, AKASHI Takahiro
<takahiro.akashi@...aro.org> wrote:
> +#define __ARM_NR_COMPAT_BASE           0x0f0000
> +#define __ARM_NR_compat_cacheflush     (__ARM_NR_COMPAT_BASE+2)
> +#define __ARM_NR_compat_set_tls                (__ARM_NR_COMPAT_BASE+5)

I know this patch is six months old, but I was wondering if anyone
knows of any plans to make these syscalls available to 64-bit apps?
We have a 32-bit app that uses __ARM_NR_compat_cacheflush, and we'd
like to port that app to 64-bit.  I'm just not sure how to start doing
that, since there don't appear to be any 64-bit ARM-specific syscalls.

-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
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