From owner-freebsd-hackers@FreeBSD.ORG  Sun Apr 13 09:46:29 2003
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP
	id 7C70B37B401; Sun, 13 Apr 2003 09:46:29 -0700 (PDT)
Received: from pop018.verizon.net (pop018pub.verizon.net [206.46.170.212])
	by mx1.FreeBSD.org (Postfix) with ESMTP
	id 66FF743FD7; Sun, 13 Apr 2003 09:46:28 -0700 (PDT)
	(envelope-from kabaev@bellatlantic.net)
Received: from kanhome ([151.203.222.111]) by pop018.verizon.net
          (InterMail vM.5.01.05.27 201-253-122-126-127-20021220) with ESMTP
          id <20030413164627.FFJO1699.pop018.verizon.net@kanhome>;
          Sun, 13 Apr 2003 11:46:27 -0500
Date: Sun, 13 Apr 2003 12:46:26 -0400
From: Alexander Kabaev <kabaev@bellatlantic.net>
To: hackers@freebsd.org
Message-Id: <20030413124626.5e782421.kabaev@bellatlantic.net>
In-Reply-To: <20030413012636.GA76030@dragon.nuxi.com>
References: <5.2.0.9.2.20030411082040.02604e90@194.184.65.4>
	<200304120241.h3C2fQCc061882@latour.rsch.comm.mot.com>
	<20030413012636.GA76030@dragon.nuxi.com>
X-Mailer: Sylpheed version 0.8.10claws18 (GTK+ 1.2.10;
	i386-portbld-freebsd5.0)
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
X-Authentication-Info: Submitted using SMTP AUTH at pop018.verizon.net from
	[151.203.222.111] at Sun, 13 Apr 2003 11:46:27 -0500
cc: gmarco@giovannelli.it
cc: rittle@latour.rsch.comm.mot.com
Subject: Re: gcc iussue or ... ?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
Reply-To: ak03@gte.com
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sun, 13 Apr 2003 16:46:29 -0000

On Sat, 12 Apr 2003 18:26:36 -0700
"David O'Brien" <obrien@freebsd.org> wrote:

> I'm not sure we should change FreeBSD to do something that purposfully
> produces wrong semantics.  From your test it sounds like either GCC
> 3.3 or Binutils 2.13.2.1 changes things for us.  I haven't updated
> FreeBSD to 2.13.2.1 as the changes from 2.13.2 don't really change any
> of the FreeBSD architectures.  The behavior change is probably due to
> improved g++ utilization of ELF features, or your FreeBSD-related bug
> fixes in 3.3.
>

I think there is a slight confusion here. It is -fconserve-space flag
what introduces wrong semantics, not the addition of missing definition.
-fconserve-space marks all uninitialized static variables as 'common'
which can obviously lead to unwanted namespace collisions.

-- 
Alexander Kabaev