linux-kernel - Re: [PATCH] perf: Fix UAPI fallout

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Message-ID: <13954.1350291382@warthog.procyon.org.uk>
Date:	Mon, 15 Oct 2012 09:56:22 +0100
From:	David Howells <dhowells@...hat.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	dhowells@...hat.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	paulus@...ba.org, davem@...emloft.net, jaxboe@...ionio.com,
	tj@...nel.org, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [PATCH] perf: Fix UAPI fallout

Ingo Molnar <mingo@...nel.org> wrote:

> Arnaldo: the way we include some of the include files directly 
> into tools/perf/ .c files [such as hw_breakpoint.h] and 
> represent others transparently via utils/include/ [such as 
> rbtree.h] is a bit messy and ought to be cleaned up I suspect.

I tried to make the USERINCLUDE macro in the bottom-level Makefile that, but I
didn't realise I had to export it:-(.

That, however, also brings in linux/kconfig.h but I don't know whether you
want/need that.

> I think the best model would be to cleanly separate from any 
> /usr/include/linux/ muck, which might be out of sync, and which 
> might stand in the way of changes. Is it possible to exclude all 
> of /usr/include/ and try to build purely from 
> include/uapi/linux/

You would also need arch/foo/include/uapi/.

David
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