From owner-freebsd-arch@FreeBSD.ORG  Thu Nov 11 03:45:20 2004
Return-Path: <owner-freebsd-arch@FreeBSD.ORG>
Delivered-To: freebsd-arch@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 02C5B16A4CE
	for <arch@freebsd.org>; Thu, 11 Nov 2004 03:45:20 +0000 (GMT)
Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 9717E43D39
	for <arch@freebsd.org>; Thu, 11 Nov 2004 03:45:19 +0000 (GMT)
	(envelope-from scottl@freebsd.org)
Received: from [192.168.254.11] (junior-wifi.samsco.home [192.168.254.11])
	(authenticated bits=0)
	by pooker.samsco.org (8.12.11/8.12.10) with ESMTP id iAB3lsE1062427;
	Wed, 10 Nov 2004 20:47:54 -0700 (MST)
	(envelope-from scottl@freebsd.org)
Message-ID: <4192E086.8060005@freebsd.org>
Date: Wed, 10 Nov 2004 20:46:14 -0700
From: Scott Long <scottl@freebsd.org>
User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20040929
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: Bruce M Simpson <bms@spc.org>
References: <20041111030035.GA70923@VARK.MIT.EDU>
	<20041111033238.GA723@empiric.icir.org>
In-Reply-To: <20041111033238.GA723@empiric.icir.org>
X-Enigmail-Version: 0.86.1.0
X-Enigmail-Supports: pgp-inline, pgp-mime
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-Spam-Status: No, hits=0.0 required=3.8 tests=none autolearn=no version=2.63
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on pooker.samsco.org
cc: arch@freebsd.org
Subject: Re: U Area Removal
X-BeenThere: freebsd-arch@freebsd.org
X-Mailman-Version: 2.1.1
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, 11 Nov 2004 03:45:20 -0000

Bruce M Simpson wrote:
> Hey there,
> 
> On Wed, Nov 10, 2004 at 10:00:35PM -0500, David Schultz wrote:
> 
>>Over the years, the amount of data we have stored in each process' U
>>area has eroded to the point where all we have left are the following:
>>
>>  - A struct kinfo_proc that is only used for a.out core dumps.
>>    This can be reconstructed at the time of the core dump, so
>>    it doesn't need to be there.
> 
> 
> Aren't we 100% ELF these days? Surely aout is no longer relevant?
> 

We are 100% ELF toolchain.  We can still (in theory) run AOUT binaries
so long as you use the COMPAT_AOUT kernel option and have AOUT
libraries.  But this is offtopic =-)

Scott