From owner-freebsd-current@FreeBSD.ORG  Tue Dec 18 20:12:51 2012
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
 by hub.freebsd.org (Postfix) with ESMTP id 49D5F8A7;
 Tue, 18 Dec 2012 20:12:51 +0000 (UTC) (envelope-from dim@FreeBSD.org)
Received: from tensor.andric.com (tensor.andric.com [87.251.56.140])
 by mx1.freebsd.org (Postfix) with ESMTP id 009B28FC12;
 Tue, 18 Dec 2012 20:12:50 +0000 (UTC)
Received: from [IPv6:2001:7b8:3a7:0:90a8:9e4b:2980:e339] (unknown
 [IPv6:2001:7b8:3a7:0:90a8:9e4b:2980:e339])
 (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits))
 (No client certificate requested)
 by tensor.andric.com (Postfix) with ESMTPSA id D75C95C5A;
 Tue, 18 Dec 2012 21:12:43 +0100 (CET)
Message-ID: <50D0CE37.3000306@FreeBSD.org>
Date: Tue, 18 Dec 2012 21:12:39 +0100
From: Dimitry Andric <dim@FreeBSD.org>
Organization: The FreeBSD Project
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64;
 rv:18.0) Gecko/20121128 Thunderbird/18.0
MIME-Version: 1.0
To: =?ISO-8859-1?Q?Ren=E9_Ladan?= <rene@freebsd.org>
Subject: Re: protoc crash in libstdc++
References: <50D05FD6.7080008@freebsd.org>
In-Reply-To: <50D05FD6.7080008@freebsd.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: quoted-printable
Cc: Roman Divacky <rdivacky@freebsd.org>, current@freebsd.org
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 18 Dec 2012 20:12:51 -0000

On 2012-12-18 13:21, Ren=E9 Ladan wrote:
> the following backtrace is from a crash that happened when building
> www/chromium with clang.  The chromium port builds a binary protoc whic=
h
> crashes when built with clang.
=2E..
> So the question is if this is a protoc or a clang or a libstdc++ bug.

Try removing --gc-sections from the link flags for protoc, that should
solve it for now.  I am still looking at the root cause, which seems to
be something in our ld; it does not seem to be related to either clang
or libstdc++.