From mboxrd@z Thu Jan  1 00:00:00 1970
From: will.deacon@arm.com (Will Deacon)
Date: Mon, 8 Dec 2014 10:10:26 +0000
Subject: [PATCH] arm64: Enable CONFIG_COMPAT also for 64k page size
In-Reply-To: <54833BAF.1030405@suse.de>
References: <1417707993-82290-1-git-send-email-agraf@suse.de>
 <20141204182049.GB7749@arm.com> <54833BAF.1030405@suse.de>
Message-ID: <20141208101026.GD27367@arm.com>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Sat, Dec 06, 2014 at 05:23:59PM +0000, Alexander Graf wrote:
> On 04.12.14 19:20, Will Deacon wrote:
> > On Thu, Dec 04, 2014 at 03:46:33PM +0000, Alexander Graf wrote:
> >> With binutils 2.25 the default alignment for 32bit arm sections changed to
> >> have everything 64k aligned. Armv7 binaries built with this binutils version
> >> run successfully on an arm64 system.
> >>
> >> Since effectively there is now the chance to run armv7 code on arm64 even
> >> with 64k page size, it doesn't make sense to block people from enabling
> >> CONFIG_COMPAT on those configurations.
> > 
> > Is there a distro available that is built with a recent enough binutils for
> > this? I'd really like to run our regression tests to check that page-size
> > assumptions don't exist for things like shm.
> 
> So how much of a distro do you need? I could probably assemble a simple
> very minimalistic rootfs with only bash if that helps.

I'd like to run LTP, so I'd probably need slightly more than that but I
certainly don't need the whole world.

Will