From owner-freebsd-arch@FreeBSD.ORG  Thu Oct 28 20:58:17 2010
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: arch@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 7F8CA1065675;
	Thu, 28 Oct 2010 20:58:17 +0000 (UTC)
	(envelope-from uqs@spoerlein.net)
Received: from acme.spoerlein.net (acme.spoerlein.net [IPv6:2001:470:9a47::1])
	by mx1.freebsd.org (Postfix) with ESMTP id EDAE18FC14;
	Thu, 28 Oct 2010 20:58:16 +0000 (UTC)
Received: from acme.spoerlein.net (localhost.spoerlein.net [IPv6:::1])
	by acme.spoerlein.net (8.14.4/8.14.4) with ESMTP id o9SKwGxK066010
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO);
	Thu, 28 Oct 2010 22:58:16 +0200 (CEST)
	(envelope-from uqs@spoerlein.net)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=spoerlein.net;
	s=dkim200908; t=1288299496;
	bh=uAH5Wj4w4w3n02ABbFQL70Zqpq/yUUFiRAzSe5ERGc0=;
	h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version:
	Content-Type:In-Reply-To;
	b=nX5uXj9SUypl+XObEgY1M9pGfZnnAtHauUPpoyvMTCvBIphAX+9OLCzpcPLYYWrXr
	OcQCQTcqwSbvHbB5PBIwYyJlq2tGpQjAdlpJ4+TEYwkMfHpFddBNBP/NBNv/fyCtqa
	6GnMxMYESUh2f1PkAPOxePc9qGilJKIeJ5XgBEAc=
Received: (from uqs@localhost)
	by acme.spoerlein.net (8.14.4/8.14.4/Submit) id o9SKwG9V066009;
	Thu, 28 Oct 2010 22:58:16 +0200 (CEST)
	(envelope-from uqs@spoerlein.net)
Date: Thu, 28 Oct 2010 22:58:15 +0200
From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net>
To: Attilio Rao <attilio@freebsd.org>
Message-ID: <20101028205815.GF46314@acme.spoerlein.net>
Mail-Followup-To: Attilio Rao <attilio@freebsd.org>,
	FreeBSD Arch <arch@freebsd.org>
References: <AANLkTiktoYyxmE8nyGeoc4_ov35fR7iN83444MfhYg-e@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <AANLkTiktoYyxmE8nyGeoc4_ov35fR7iN83444MfhYg-e@mail.gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: FreeBSD Arch <arch@freebsd.org>
Subject: Re: [PATCH] Headers for the x86 subtree
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussion related to FreeBSD architecture <freebsd-arch.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arch>
List-Post: <mailto:freebsd-arch@freebsd.org>
List-Help: <mailto:freebsd-arch-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arch>,
	<mailto:freebsd-arch-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 28 Oct 2010 20:58:17 -0000

On Wed, 27.10.2010 at 16:56:06 +0200, Attilio Rao wrote:
> This patch should convert a (simple and 100% shared between amd64 and
> i386 header) under the x86 sub-tree. Please note that in this patch I
> "svn cp" the file from sys/amd64/include/mptable.h into
> sys/x86/include/mptable.h:
> http://www.freebsd.org/~attilio/headers-x86.diff
> 
> This is someway a POC, that I really want to get in. The idea is
> simple and someway follows the pc98 case (even if not entirely): the
> files under machine/include/* became just mere stubs for x86/include/*
> contents and redirect there.
> This won't particulary help reducing the number of available files,
> but generally removing verbatim and would also be the way to go for
> handling MFCs.
> If you find this is the right way I'll commit the fix and start moving
> other files as time permits.

What I don't quite get with the new x86 directory is, why we didn't make
it arch/x86 from the start? The usual argument against moving
architecture specific stuff to arch/ is that it will break diffs for
vendors. Now with x86 and the merging we are breaking their stuff
anyway, but we don't actually improve the clutter under /sys and even
gain a new arch-specific dir, not under arch/

Somehow, this seems like a missed opportunity for an often requested
cleanup. :/

Uli