linux-kernel - Re: [PATCH 1/2] fs: binfmt_elf: Create Kconfig variable for PIE randomization.

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Date:	Wed, 09 Nov 2011 16:37:43 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	David Daney <david.daney@...ium.com>
CC:	linux-mips@...ux-mips.org, ralf@...ux-mips.org,
	linux-kernel@...r.kernel.org,
	Russell King <linux@....linux.org.uk>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	Alexander Viro <viro@...iv.linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org, linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/2] fs: binfmt_elf: Create Kconfig variable for PIE randomization.

On 11/09/2011 04:32 PM, David Daney wrote:
> Randomization of PIE load address is hard coded in binfmt_elf.c for
> X86 and ARM.  Create a new Kconfig variable
> (CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE) for this and use it instead.
> Thus architecture specific policy is pushed out of the generic
> binfmt_elf.c and into the architecture Kconfig files.
> 
> X86 and ARM Kconfigs are modified to select the new variable so there
> is no change in behavior.  A follow on patch will select it for MIPS
> too.
> 
> Cc: Russell King <linux@....linux.org.uk>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Ingo Molnar <mingo@...hat.com>
> Cc: "H. Peter Anvin" <hpa@...or.com>
> Cc: x86@...nel.org
> Cc: Alexander Viro <viro@...iv.linux.org.uk>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Cc: linux-fsdevel@...r.kernel.org
> Signed-off-by: David Daney <david.daney@...ium.com>

Acked-by: H. Peter Anvin <hpa@...or.com>

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