[cip-dev] powerpc build with Kernel v4.4

[Chris.Paterson2@renesas.com (Chris Paterson)]

Hello Zoran,

> From: Zoran S <zoran.stojsavljevic.de@gmail.com>
> Sent: 28 July 2019 05:22
> 
> Quick ad-hoc observation:
> 
> [1] From https://gitlab.com/cip-project/cip-kernel/linux-cip/-
> /jobs/260410825
> > /opt/build_kernel.sh: line 123: [: /opt/cip-kernel-
> config/4.4/powerpc/toshiba_defconfig: unary operator expected
> 
> Interesting line...WTH is wrong with the line 123 (CONFIG_SPI_DEBUG=y)?

Well spotted. This issue isn't with the actual config, rather than with my script. It's not handling very well the fact that there are two configs called "toshiba_defconfig" for v4.4 in the cip-kernel-config repository. (One for x86 and one for powerpc).

I'll update my script.

> 
> [2] From https://lkml.org/lkml/2019/2/27/106
> On Tue, Feb 26, 2019 at 09:29:40AM -0800, Guenter Roeck wrote:
> > In function ?user_regset_copyin?,
> >     inlined from ?vr_set? at arch/powerpc/kernel/ptrace.c:490:9:
> > include/linux/regset.h:258:4: error:
> > ?memcpy? offset [-527, -529] is out of the bounds [0, 16] of object ?vrsave?
> > with type ?union <anonymous>?
> >
> > The problem is not new. It is seen now because I switched to use
> > gcc 8.3.0. The problem is fixed in linux-next.
> 
> You should contact Guenter Roeck and ask him about the following:
> > The problem is not new. It is seen now because I switched to use
> > gcc 8.3.0. The problem is fixed in linux-next.
> 
> Stress on: "The problem is fixed in linux-next".

Yep.

Chris

> 
> My two cent worth thinking,
> Zoran
> _______
> 
> On Sat, Jul 27, 2019 at 11:29 PM Chris Paterson
> <Chris.Paterson2@renesas.com> wrote:
> >
> > Hello all,
> >
> > I'm trying to build the toshiba_defconfig [1] for the powerpc architecture
> using the CIP v4.4 Kernel but I'm hitting some problems. The log from the
> build can be seen on GitLab [2].
> >
> > Has anyone tried building this configuration recently?
> >
> > I'm using gcc compiler v8.1.0. I mention this because I've see a half-related
> discussion [3] when Googling. From this mail thread I wonder if there are
> some patches we need to backport?
> >
> >
> > [1] https://gitlab.com/cip-project/cip-kernel/cip-kernel-
> config/blob/master/4.4/powerpc/toshiba_defconfig
> > [2] https://gitlab.com/cip-project/cip-kernel/linux-cip/-/jobs/260410825
> > [3] https://lkml.org/lkml/2019/2/27/106
> >
> > Kind regards, Chris
> >
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