linux-kernel - Re: [PATCH 0/1] m68k: merge m68k and m68knommu arch directories

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Message-ID: <AANLkTik37qYtMOWENPvRmhqqPkUCTL79_cqZ-0e_i2o7@mail.gmail.com>
Date:	Thu, 24 Mar 2011 09:06:08 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Greg Ungerer <gerg@...pgear.com>
Cc:	linux-m68k@...r.kernel.org, uclinux-dev@...inux.org,
	linux-kernel@...r.kernel.org,
	Linux-Next <linux-next@...r.kernel.org>
Subject: Re: [PATCH 0/1] m68k: merge m68k and m68knommu arch directories

Hi Greg,

On Thu, Mar 24, 2011 at 00:00, Greg Ungerer <gerg@...pgear.com> wrote:
> On 24/03/11 08:07, Geert Uytterhoeven wrote:
>> On Tue, Mar 22, 2011 at 05:43,<gerg@...pgear.com>  wrote:
>>> slso on the for-next branch in that tree, so will get some testing
>>> in the next tree for the next few days.
>>
>> defconfig is now a nommu-config, and it fails?
>>
>> http://kisskb.ellerman.id.au/kisskb/buildresult/4012794/
>
> Yep, that looks wrong. I'll move the define for KBUILD_DEFCONFIG
> into arch/m68k/Makefile (and remove the existing defines in Makefile_mm
> and Makefile_no). That will make the DEFCONFIG as it was before,
> multi_defconfig.
>
>> arch/m68k/kernel/entry_no.S:47: Error: Unknown operator -- statement
>> `save_all' ignored
>
> This is due to compiling for the non-mmu targets and not using
> a m68k-uclinux- toolchain. Unfortunately the compiler must define
> __uClinux__ to compile for non-mmu targets. This isn't new, we

For userland...

> have had this problem ever since the merge of the header files.
> (The exported headers need some switch to use to base some
> conditionals on, and kernel config options cannot be used in
> exported headers).

For kernels, we can explicitly define this in arch/m68k/Makefile if !MMU, right?

> But with a fixed defconfig, you won't see this anymore :-)
>
> I'll fix up the git commit on m68knommu git tree.

Good, thx!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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