linux-kernel - Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64

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Date:	Wed, 14 Mar 2007 10:51:44 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Steven Rostedt <rostedt@...dmis.org>
cc:	Jan Engelhardt <jengelh@...ux01.gwdg.de>,
	Ingo Molnar <mingo@...e.hu>, Andi Kleen <andi@...stfloor.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Glauber de Oliveira Costa <glommer@...il.com>
Subject: Re: [PATCH 00/18] Make common x86 arch area for i386 and x86_64 -
 Take 2

On Wed, 14 Mar 2007, Steven Rostedt wrote:
> 
> That's created at build time.  But I don't see anywhere in a freshly
> cloned repo or fresh untar of the linux tarball, where there exists any
> symbolic links.

There are none.

Symlinks embedded in the source tree tend to be hard to maintain: you can 
traditionally not send patches to add/change/move/remove them, and not 
everybody can even import them at all (ie some people have been so damaged 
by CVS that they maintain their kernels in it - I'm trying my best to be a 
humanitarian and rid the world of the scourge that is CVS, but I'm not 
sure I can undo the untold mental damage wrought by it over decades of 
quiet suffering).

With git, you can track symlinks and send them as patches, but we've not 
really had a huge reason to do so. They are easy enough to generate from 
Makefiles if required, and quite often you don't really need to anyway (ie 
the "symlink" is often just a make rule, like the 

	SRCDIR := ../../../i386/kernel/cpu/cpufreq

line I quoted earlier).

So I'd rather not even start using symlinks unless there is some really 
good reason. We can continue to just use Makefiles.

		Linus
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