linux-kernel - Re: [REGRESSION] Recent change to kernel spikes out ccache/distcc

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Date:	Tue, 6 Jan 2009 18:48:25 +0100
From:	Sam Ravnborg <sam@...nborg.org>
To:	Theodore Tso <tytso@....edu>, Jan Beulich <jbeulich@...ell.com>,
	ccache@...ts.samba.org, linux-kernel@...r.kernel.org
Subject: Re: [REGRESSION] Recent change to kernel spikes out ccache/distcc

On Tue, Jan 06, 2009 at 12:33:00PM -0500, Theodore Tso wrote:
> On Tue, Jan 06, 2009 at 03:29:35PM +0000, Jan Beulich wrote:
> > >>> "Theodore Ts'o" <tytso@....edu> 06.01.09 16:15 >>>
> > >In the short term, though, it would be nice if we could get back a
> > >simple way of making a kernel  object file using just cc, so that ccache
> > >and distcc could be functional again.   Does that seem reasonable?
> > 
> > Making the new logic dependent on a config option would seem reasonable
> > to me - of course at the expense of the respective Makefile becoming
> > even less readable.
> 
> Too late.  :-) It's pretty unreadable already.... 

I'm all ears for inputs how to make them even a little more readable.
We actually used several iteratiosn of Jan's patch just to improve
readability in areas the patch touched.

I think at least half of the unreadability comes from the fact that
people do not realise the steps needed to actually build the kernel.

It is a little bit more involved than doing a simple sequence
of gcc; ld.

We have btw. 1140 Makefiles in the kernel of a total of 28000 lines.

Yes - exactly 28000 lines as reported by:
find -name 'Makefile*' | xargs cat | wc -l

But numbers aside - any inputs appreciated.

	Sam
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