linux-kernel - Re: Support arch/$ARCH/include in kbuild

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Message-ID: <20080622220508.GA8957@uranus.ravnborg.org>
Date:	Mon, 23 Jun 2008 00:05:09 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	LKML <linux-kernel@...r.kernel.org>,
	linux-kbuild <linux-kbuild@...r.kernel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: Support arch/$ARCH/include in kbuild

On Sun, Jun 22, 2008 at 12:07:03AM +0200, Sam Ravnborg wrote:
> Linus hinted that he liked to have all arch specific
> header files moved from include/asm-$ARCH to
> arch/$ARCH/include/asm.
> 
> The following two patches implement the basic support
> for this.
> 
> I have used sparc for my testing and to some degree
> I also used i386.
> 
> For sparc I just had to do a simple:
> 
>     mkdir -p arch/sparc/include/asm
>     mv include/asm-sparc/* arch/sparc/include/asm
> 
> to build sparc with the new directory layout.
> 
> For i386 I had to do a few trivial path fixes in
> arch/x86/Makefile and to fix the include of unistd_32.h
> in one place to fix the build.
> 
> I expect a few additional bits to show up when people
> start to move their header files but this should
> be a good starting point.
> 
> 
> To support arch/$ARCH/include/ was done in two steps.
> 
> First was to teach make headers_* about the new layout.
> And second step was to get the build fixed with the new
> layout.
> 
> Patches are on top of kbuild-next.git and follows.

I redid this and ended up with 5 small patches.

Sam Ravnborg (5):
      kbuild: prepare headers_* for arch/$ARCH/include
      kbuild: include/asm may be a file - fix mrproper for this
      kbuild: support arch/$ARCH/include for tags, cscope
      kbuild: asm symlink support for arch/$ARCH/include
      kbuild: add arch/$ARCH/include to search path

This patchset is tested a more than
the previous one and is now also pushed out
to kbuild-next.git so it will apprear in -next shortly.

There were a few bugs around the symlink handling
and make tags is now also functional.
So I consider this ready for merging.

Any comments are welcome!
Patches will follow as reply to this one, but they
are only sent to kbuild and lkml.

	Sam
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