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SubjectRe: arm64 tools build failure wrt smp_load_{acquire,release} expansion on gcc version 5.4.0 20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9)
[apologies if you get this twice -- my GPU hung (!) whilst sending my
previous response]

On Wed, Oct 31, 2018 at 06:14:56PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Wed, Oct 31, 2018 at 07:08:29PM +0100, Daniel Borkmann escreveu:
> > On 10/31/2018 06:44 PM, Will Deacon wrote:
> > > Diff below...
>
> > I just gave this a spin on 16.04 and it resolves the build issue, thanks
> > for the quick fix, Will!
>
> > Tested-by: Daniel Borkmann <daniel@iogearbox.net>
>
> It buildz, ship it:
>
> # time dm android-ndk:r12b-arm \
> android-ndk:r15c-arm \
> debian:experimental-x-arm64 \
> ubuntu:14.04.4-x-linaro-arm64 \
> ubuntu:16.04-x-arm \
> ubuntu:16.04-x-arm64 \
> ubuntu:18.04-x-arm \
> ubuntu:18.04-x-arm64
> 1 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
> 2 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
> 3 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 8.2.0-7) 8.2.0
> 4 ubuntu:14.04.4-x-linaro-arm64 : Ok aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
> 5 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
> 6 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
> 7 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
> 8 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04) 7.3.0
> #
>
> So I've added it to my tree as below, can I keep it like that?

Yup, thanks for turning it into a proper patch. Just to be explicit, here's
my s-o-b:

Signed-off-by: Will Deacon <will.deacon@arm.com>

Will

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