From: catalin.marinas@arm.com (Catalin Marinas)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] arm64: Enable TEXT_OFFSET fuzzing
Date: Fri, 16 May 2014 15:06:07 +0100 [thread overview]
Message-ID: <20140516140606.GH5624@arm.com> (raw)
In-Reply-To: <1400233839-15140-5-git-send-email-mark.rutland@arm.com>
On Fri, May 16, 2014 at 10:50:39AM +0100, Mark Rutland wrote:
> --- a/arch/arm64/Kconfig.debug
> +++ b/arch/arm64/Kconfig.debug
> @@ -37,4 +37,35 @@ config PID_IN_CONTEXTIDR
> instructions during context switch. Say Y here only if you are
> planning to use hardware trace tools with this kernel.
>
> +config ARM64_RANDOMIZE_TEXT_OFFSET
> + bool "Randomize TEXT_OFFSET at build time (EXPERIMENTAL)"
> + default N
(nitpick: no need for default n)
I think that's good for testing. It would have been nice to be able to
set some limits for the random offset but I can't figure out an easy way
to do this via Kconfig (maybe with additional options).
> +config ARM64_TEXT_OFFSET
> + hex "Required image load offset"
> + depends on !ARM64_RANDOMIZE_TEXT_OFFSET
> + default "0x0000000000080000"
I don't think we should include this. It encourages people to set
specific offsets for their SoCs.
--
Catalin
next prev parent reply other threads:[~2014-05-16 14:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-16 9:50 [PATCH 0/4] arm64: simplify restrictions on bootloaders Mark Rutland
2014-05-16 9:50 ` [PATCH 1/4] arm64: head.S: remove unnecessary function alignment Mark Rutland
2014-05-16 13:04 ` Christopher Covington
2014-05-20 16:20 ` Laura Abbott
2014-05-16 9:50 ` [PATCH 2/4] arm64: place initial page tables above the kernel Mark Rutland
2014-05-20 16:21 ` Laura Abbott
2014-05-16 9:50 ` [PATCH 3/4] arm64: export effective Image size to bootloaders Mark Rutland
2014-05-20 14:12 ` Tom Rini
2014-05-20 16:22 ` Laura Abbott
2014-06-16 20:27 ` Geoff Levand
2014-06-18 16:49 ` Mark Rutland
2014-06-18 18:27 ` Rob Herring
2014-06-18 18:41 ` Geoff Levand
2014-06-19 10:25 ` Mark Rutland
2014-06-19 18:07 ` Geoff Levand
2014-06-20 10:17 ` Mark Rutland
2014-06-18 18:56 ` Kevin Hilman
2014-06-18 23:03 ` [PATCH] arm64: Add byte order to image header Geoff Levand
2014-06-18 23:07 ` [PATCH] arm64: Add new file asm/image.h Geoff Levand
2014-05-16 9:50 ` [PATCH 4/4] arm64: Enable TEXT_OFFSET fuzzing Mark Rutland
2014-05-16 14:06 ` Catalin Marinas [this message]
2014-05-16 16:55 ` Mark Rutland
2014-05-20 14:11 ` Tom Rini
2014-05-20 16:08 ` Mark Rutland
2014-05-21 10:18 ` Mark Rutland
2014-05-20 11:31 ` [PATCH 0/4] arm64: simplify restrictions on bootloaders Ian Campbell
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