linux-kernel - Re: [PATCH take3 00/20] Make common x86 arch area for i386 and x86_64

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Message-Id: <1173940659.19022.79.camel@localhost.localdomain>
Date:	Thu, 15 Mar 2007 17:37:39 +1100
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	Chris Wright <chrisw@...s-sol.org>, Andi Kleen <ak@....de>,
	Glauber de Oliveira Costa <glommer@...il.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>
Subject: Re: [PATCH take3 00/20] Make common x86 arch area for i386 and
	x86_64 - Take 3

On Thu, 2007-03-15 at 01:13 -0400, Steven Rostedt wrote:
> Once again here's an attempt to put the shared files of x86_64 and i386
> into a separate directory.

OK, that's fine, but the next step is to have "make ARCH=x86" compile,
with a config option as to whether to build 32 or 64 bit.  This will
involve a fair amount of Makefile hair, but if you can get Andi to buy
into that then the rest is a simple matter of code churn.  For most
kernel hackers, this would be the flag day.

Moving the rest of the files across to xxx_32.c, xxx_64.h etc is going
to involve a great deal of untangling and code cleanup.  It's also going
to completely screw a whole heap of my cleanup patches.  Oh well.

(Still hoping for an executive summary from the PPC folks).

Cheers!
Rusty.

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