From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#18784: Coultdn't compile emacs-24.4 Date: Mon, 16 Mar 2015 21:34:34 +0200 Message-ID: <83pp88zqgl.fsf@gnu.org> References: <21763.19437.782573.339655@a1i15.kph.uni-mainz.de> <21763.21024.236293.665089@a1i15.kph.uni-mainz.de> <21766.40821.679834.521362@a1i15.kph.uni-mainz.de> <837fug29wr.fsf@gnu.org> <83sid4zthb.fsf@gnu.org> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1426534533 8140 80.91.229.3 (16 Mar 2015 19:35:33 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 16 Mar 2015 19:35:33 +0000 (UTC) Cc: ulm@gentoo.org, 18784@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Mar 16 20:35:22 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@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 1YXanD-0007gH-BP for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 20:35:15 +0100 Original-Received: from localhost ([::1]:51348 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXanC-0001PW-NQ for geb-bug-gnu-emacs@m.gmane.org; Mon, 16 Mar 2015 15:35:14 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40587) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXan8-0001O0-9I for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:35:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YXan0-0001px-NY for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:35:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:50351) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YXan0-0001pp-KV for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:35:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YXan0-0007Is-9D for bug-gnu-emacs@gnu.org; Mon, 16 Mar 2015 15:35:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 16 Mar 2015 19:35:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 18784 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 18784-submit@debbugs.gnu.org id=B18784.142653449228053 (code B ref 18784); Mon, 16 Mar 2015 19:35:02 +0000 Original-Received: (at 18784) by debbugs.gnu.org; 16 Mar 2015 19:34:52 +0000 Original-Received: from localhost ([127.0.0.1]:48919 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXamp-0007IO-K0 for submit@debbugs.gnu.org; Mon, 16 Mar 2015 15:34:51 -0400 Original-Received: from mtaout23.012.net.il ([80.179.55.175]:34810) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YXamn-0007IF-3j for 18784@debbugs.gnu.org; Mon, 16 Mar 2015 15:34:50 -0400 Original-Received: from conversion-daemon.a-mtaout23.012.net.il by a-mtaout23.012.net.il (HyperSendmail v2007.08) id <0NLB00F00KO77I00@a-mtaout23.012.net.il> for 18784@debbugs.gnu.org; Mon, 16 Mar 2015 21:34:47 +0200 (IST) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout23.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NLB00F02L1Y3980@a-mtaout23.012.net.il>; Mon, 16 Mar 2015 21:34:47 +0200 (IST) In-reply-to: X-012-Sender: halo1@inter.net.il X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:100559 Archived-At: > From: Stefan Monnier > Cc: ulm@gentoo.org, 18784@debbugs.gnu.org > Date: Mon, 16 Mar 2015 15:06:22 -0400 > > > I think we don't really understand why this bug happens. At least I > > have no clear idea of how PIE can cause temacs segfault. > > I guess if PIE is used in order to place Emacs's code at randomized > addresses (different address every time an Emacs process is launched), > it can break the dump because our subr objects will end up with pointers > to addresses that aren't valid any more (might be other such problems, > but that's the first that comes to my mind). Then this is only an issue on systems where PIE == address randomization, isn't it?