linux-kernel - Re: [PATCH] [Repost without wordwrapping] Merge m68k and m68knommu

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Date:	Fri, 04 Dec 2009 14:47:56 +1000
From:	Greg Ungerer <gerg@...pgear.com>
To:	Steven King <sfking00@...oo.com>
CC:	linux-kernel@...r.kernel.org, linux-m68k@...r.kernel.org,
	uclinux-dev@...inux.org, Geert Uytterhoeven <geert@...ux-m68k.org>,
	Roman Zippel <zippel@...ux-m68k.org>
Subject: Re: [PATCH] [Repost without wordwrapping] Merge m68k and m68knommu

Hi Steven,

Steven King wrote:
> On Sunday 18 October 2009 04:55:40 Steven King wrote:
>> This is a script and patch to merge the m68knommu arch into m68k.
> 
> Ping.

Sorry, I have just not had time to look at this yet.
Promise to find some time soon to have a closer look soon :-)

Regards
Greg



>> The script was inspired by the script Sam Ravnborg used to merge the
>> includes from m68knommu. For those files common to both arches but
>> differing in content, the m68k version of the file is renamed to
>> <file>_mm.<ext> and the m68knommu version of the file is moved into the
>> corresponding m68k directory and renamed <file>_no.<ext> and a small
>> wrapper file <file>.<ext> is used to select between the two version.
>> Files that are common to both but don't differ are removed from the
>> m68knommu tree and files and directories that are unique to the
>> m68knommu tree are moved to the m68k tree. Finally, the arch/m68knommu
>> tree is removed.
>>
>> To select between the the versions of the files, the wrapper uses
>>
>> #ifdef CONFIG_MMU
>> #include <file>_mm.<ext>
>> #else
>> #include <file>_no.<ext>
>> #endif
>>
>> The patch modifies the toplevel Makefile so that ARCH=m68knommu still
>> works (by setting SRCARCH=m68k) and adds the m68knommu Kconfig and
>> Makefile to the m68k Kconfig and Makefile, using the definition of ARCH
>> to select which values to use.
>>
>> Thus when building for either a m68k or an m68knommu target, one still
>> specifies either ARCH=m68k or ARCH=m68knommu and everything should
>> build EXACTLY as it did pre-merge.  (I think).
>>
>>
>> Signed-off-by: Steven King <sfking@...dc.com>



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Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@...pgear.com
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