From: Ian Campbell <ian.campbell@citrix.com>
To: Julien Grall <julien.grall@linaro.org>
Cc: patches@linaro.org, tim@xen.org,
Stefano.Stabellini@eu.citrix.com, xen-devel@lists.xen.org
Subject: Re: [PATCH v4 2/2] xen/arm32: implement VFP context switch
Date: Sun, 7 Jul 2013 07:03:18 +0100 [thread overview]
Message-ID: <1373176998.5453.19.camel@hastur.hellion.org.uk> (raw)
In-Reply-To: <1371476833-32475-3-git-send-email-julien.grall@linaro.org>
On Mon, 2013-06-17 at 14:47 +0100, Julien Grall wrote:
> Add support for VFP context switch on arm32 and a dummy support for arm64
>
> Signed-off-by: Julien Grall <julien.grall@linaro.org>
This patch is causing failures for me with the gcc 4.6.3 cross compiler
which I use and with gcc-linaro-arm-linux-gnueabihf-4.7-2013.04-20130415
vfp.c: In function 'vfp_restore_state':
vfp.c:45:27: error: memory input 0 is not directly addressable
vfp.c:51:31: error: memory input 0 is not directly addressable
For some reason this didn't happen during my pre-commit build tests (or
I somehow missed it), and the test system seems happy with it (no
regression reported). But it does seem to fail on the same system (with
the same compiler) I used for those pre-commit tests now.
Which compiler do you use?
I notice that Linux does its VFP context switch in a .S file, I wonder
if this sort of issue is why?
Ian.
next prev parent reply other threads:[~2013-07-07 6:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-17 13:47 [PATCH v4 0/2] Implement VFP context switch for arm32 Julien Grall
2013-06-17 13:47 ` [PATCH v4 1/2] xen/arm: don't enable VFP on XEN during the boot Julien Grall
2013-06-17 13:47 ` [PATCH v4 2/2] xen/arm32: implement VFP context switch Julien Grall
2013-07-06 20:45 ` Ian Campbell
2013-07-07 16:02 ` Julien Grall
2013-07-07 6:03 ` Ian Campbell [this message]
2013-06-28 11:40 ` [PATCH v4 0/2] Implement VFP context switch for arm32 Ian Campbell
2013-07-04 10:40 ` Ian Campbell
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