From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: Time to drop the pre-dump phase in the build? Date: Fri, 10 Jan 2014 22:16:10 -0800 Organization: UCLA Computer Science Department Message-ID: <52D0E1AA.9000508@cs.ucla.edu> References: <20140110191530.5772E38019B@snark.thyrsus.com> <83ha9bborj.fsf@gnu.org> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1389421002 31846 80.91.229.3 (11 Jan 2014 06:16:42 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 11 Jan 2014 06:16:42 +0000 (UTC) Cc: emacs-devel@gnu.org To: Eli Zaretskii , "Eric S. Raymond" Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sat Jan 11 07:16:49 2014 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1W1rsG-0008PH-4k for ged-emacs-devel@m.gmane.org; Sat, 11 Jan 2014 07:16:48 +0100 Original-Received: from localhost ([::1]:60315 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1rsF-0004aH-Ku for ged-emacs-devel@m.gmane.org; Sat, 11 Jan 2014 01:16:47 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57147) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1rs7-0004Z8-Er for emacs-devel@gnu.org; Sat, 11 Jan 2014 01:16:45 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1W1rs1-0001IO-Jk for emacs-devel@gnu.org; Sat, 11 Jan 2014 01:16:39 -0500 Original-Received: from smtp.cs.ucla.edu ([131.179.128.62]:47455) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1W1rrt-00017w-FQ; Sat, 11 Jan 2014 01:16:25 -0500 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.cs.ucla.edu (Postfix) with ESMTP id 4996F39E8014; Fri, 10 Jan 2014 22:16:24 -0800 (PST) X-Virus-Scanned: amavisd-new at smtp.cs.ucla.edu Original-Received: from smtp.cs.ucla.edu ([127.0.0.1]) by localhost (smtp.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Al76PcRs5xbm; Fri, 10 Jan 2014 22:16:23 -0800 (PST) Original-Received: from [192.168.1.9] (pool-108-0-233-62.lsanca.fios.verizon.net [108.0.233.62]) by smtp.cs.ucla.edu (Postfix) with ESMTPSA id 8B63A39E8013; Fri, 10 Jan 2014 22:16:23 -0800 (PST) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: <83ha9bborj.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-Received-From: 131.179.128.62 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:168064 Archived-At: >> >(3) Back when I last looked at it (admittedly a long time ago) >> > the dump code was both the largest single source of porting >> > problems and a serious attractor of crash bugs. > Didn't hear about these in a while, perhaps several years. I ran into a porting problem a couple of weeks ago: the Emacs dump approach doesn't work with AddressSanitizer on GNU/Linux, e.g., gcc -fsanitize=address if you're using GCC 4.8 or later. It turns out that John Wiegley reported the problem on emacs-devel in 2012; see: http://lists.gnu.org/archive/html/emacs-devel/2012-06/msg00600.html AddressSanitizer would be a useful bug-squasher for Emacs, I expect.