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: Add FIXME comment re stack overflow and modules Date: Mon, 21 Dec 2015 10:29:59 -0800 Organization: UCLA Computer Science Department Message-ID: <56784527.20400@cs.ucla.edu> References: <83h9jbssx2.fsf@gnu.org> <5678398A.7020409@cs.ucla.edu> <831tafsmes.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 1450722636 13313 80.91.229.3 (21 Dec 2015 18:30:36 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 21 Dec 2015 18:30:36 +0000 (UTC) Cc: emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Mon Dec 21 19:30:27 2015 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 1aB5E2-00017o-J6 for ged-emacs-devel@m.gmane.org; Mon, 21 Dec 2015 19:30:26 +0100 Original-Received: from localhost ([::1]:46774 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aB5E1-0004oD-Nw for ged-emacs-devel@m.gmane.org; Mon, 21 Dec 2015 13:30:25 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:48024) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aB5Dj-0004fe-MR for emacs-devel@gnu.org; Mon, 21 Dec 2015 13:30:11 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aB5Di-0003aC-Ua for emacs-devel@gnu.org; Mon, 21 Dec 2015 13:30:07 -0500 Original-Received: from zimbra.cs.ucla.edu ([131.179.128.68]:40705) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aB5Dc-0003UY-Tj; Mon, 21 Dec 2015 13:30:01 -0500 Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 474A1160633; Mon, 21 Dec 2015 10:30:00 -0800 (PST) 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 yp2VpyJz4H-F; Mon, 21 Dec 2015 10:29:59 -0800 (PST) Original-Received: from localhost (localhost [127.0.0.1]) by zimbra.cs.ucla.edu (Postfix) with ESMTP id 9E84F160D1A; Mon, 21 Dec 2015 10:29:59 -0800 (PST) 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 uIoYtrH-ezYc; Mon, 21 Dec 2015 10:29:59 -0800 (PST) Original-Received: from [192.168.1.9] (pool-100-32-155-148.lsanca.fios.verizon.net [100.32.155.148]) by zimbra.cs.ucla.edu (Postfix) with ESMTPSA id 801D8160633; Mon, 21 Dec 2015 10:29:59 -0800 (PST) User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 In-Reply-To: <831tafsmes.fsf@gnu.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 131.179.128.68 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:196622 Archived-At: Eli Zaretskii wrote: > I clarified that comment a bit. Thanks. >> >For example, the module code contains comments like "It is very >> >important that pushing the handler doesn't itself raise a signal" >> >that suggest that the corresponding code is incompatible with stack >> >overflow checking. > I think it refers to Fsignal, not to signals caught by sigaction > handlers. Yes. And this suggests that that part of the implementation is incompatible with stack overflow checking.