From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Paul Eggert Newsgroups: gmane.emacs.devel Subject: Re: building/using address-sanitizer-enabled emacs? Date: Sun, 7 May 2017 12:54:53 -0700 Organization: UCLA Computer Science Department Message-ID: References: NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1494186946 1852 195.159.176.226 (7 May 2017 19:55:46 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 7 May 2017 19:55:46 +0000 (UTC) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 To: Jim Meyering , emacs-devel@gnu.org Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Sun May 07 21:55:41 2017 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1d7SHN-0000Ke-FJ for ged-emacs-devel@m.gmane.org; Sun, 07 May 2017 21:55:41 +0200 Original-Received: from localhost ([::1]:56585 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d7SHR-0002pm-He for ged-emacs-devel@m.gmane.org; Sun, 07 May 2017 15:55:45 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:36942) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d7SGj-0002pZ-CS for emacs-devel@gnu.org; Sun, 07 May 2017 15:55:02 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d7SGe-0002A9-ID for emacs-devel@gnu.org; Sun, 07 May 2017 15:55:01 -0400 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:42236) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1d7SGe-00029g-Bw for emacs-devel@gnu.org; Sun, 07 May 2017 15:54:56 -0400 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 7E216160070; Sun, 7 May 2017 12:54:54 -0700 (PDT) Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id FyELWGPKFaxj; Sun, 7 May 2017 12:54:53 -0700 (PDT) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 8533E1600B9; Sun, 7 May 2017 12:54:53 -0700 (PDT) X-Virus-Scanned: amavisd-new at zimbra.cs.ucla.edu Original-Received: from zimbra.cs.ucla.edu ([127.0.0.1]) by localhost (zimbra.cs.ucla.edu [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id YIxxB5iXVdzQ; Sun, 7 May 2017 12:54:53 -0700 (PDT) Original-Received: from [192.168.1.9] (unknown [47.153.188.248]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 5F6FA160070; Sun, 7 May 2017 12:54:53 -0700 (PDT) In-Reply-To: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 131.179.128.68 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.21 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" Xref: news.gmane.org gmane.emacs.devel:214684 Archived-At: A while ago I got address sanitization to work with temacs, but gave up o= n=20 dumped Emacs because it was too much of a pain. Since we already need to = get=20 Emacs to work without dumping for other reasons, I put the address-saniti= zation=20 project on the back burner, figuring that it wasn't worth my time if a du= mp-free=20 Emacs will be practical soon. The project to get Emacs to work without dumping has run into problems,=20 unfortunately. The currently-favored technical approach (see the=20 scratch/raeburn-startup branch) isn't fully working and apparently will s= low=20 down Emacs startup significantly, which makes it hard to be enthusiastic = about=20 it. Progress has been slow: no changes have been installed since April 10= , and=20 the last message from Ken Raeburn, its principal hacker, was April 16 and= began=20 "This is probably going to make my brain hurt"=20 . Daniel Colascione proposed an alternative approach in=20 but= as he=20 noted in =20 it has some problems with weak hash tables and we haven't heard from Dani= el=20 since January, possibly because he was discouraged by Eli's negative reac= tion to=20 this approach.