From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <Ian.Campbell@citrix.com>
Subject: Re: [PATCH 4/4] xen/arm: correctly handle an empty
 array of platform descs.
Date: Tue, 14 May 2013 16:14:00 +0100
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To: Jan Beulich <JBeulich@suse.com>
Cc: "Keir (Xen.org)" <keir@xen.org>, Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>, Ian Jackson <Ian.Jackson@eu.citrix.com>, "Tim (Xen.org)" <tim@xen.org>, "xen-devel@lists.xen.org" <xen-devel@lists.xen.org>, Julien Grall <julien.grall@citrix.com>
List-Id: xen-devel@lists.xenproject.org

On Tue, 2013-05-14 at 16:11 +0100, Jan Beulich wrote:
> >>> On 14.05.13 at 16:54, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> > On Tue, 2013-05-14 at 15:29 +0100, Jan Beulich wrote:
> >> What compiler version and switches were you using for the case
> >> where you spotted bad code to be generated?
> > 
> > gcc-linaro-aarch64-linux-gnu-4.7-2013.01-20130125_linux doing a standard
> > arm64 build of Xen.
> 
> Odd - I'm using mostly unmodified 4.7.3 from gcc.gnu.org, so I'm
> wondering if that Linaro build has meaningful extra patches and/or
> lacks important bug fixes.
> 
> The reason I'm trying to get to the bottom of this is because, as
> you noted, we might be on the edge of running into more issues
> if at least some not know broken gcc versions behave like this.
> 
> Could you try compiling the example code I sent earlier with the
> two arm compilers you use, to see if that trivial piece of code also
> exposes that behavior (or whether this is tied to something else)?

Looks like our mails crossed in the ether, I just posted the arm64
results... Didn't bother with arm32.