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#14569: 24.3.50; bootstrap fails on Cygwin Date: Tue, 18 Jun 2013 18:53:51 +0300 Message-ID: <83k3lrs9dc.fsf@gnu.org> References: <51B78346.3050600@cornell.edu> <2E06A322-530C-4AA2-9282-6D2E48B1D194@swipnet.se> <51B8BEFE.6070309@cs.ucla.edu> <51B8D5ED.1010407@alice.it> <51BA03CA.4080804@cs.ucla.edu> <51BB56CB.7030209@cs.ucla.edu> <20130614180359.GA5295@ednor.casa.cgf.cx> <51BB7B82.4010204@cornell.edu> <83obb7vorg.fsf@gnu.org> <328A1CCF-A8DB-44F9-A6CF-BEF0FFBC5C93@swipnet.se> <83bo77ven6.fsf@gnu.org> <51BE6CDD.7090108@cornell.edu> <1ED4E1BC-6DEC-4668-8FBD-6EC5BCFA10DA@swipnet.se> <834ncwu67v.fsf@gnu.org> <51BF6E65.6030102@cornell.edu> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Trace: ger.gmane.org 1371570849 7581 80.91.229.3 (18 Jun 2013 15:54:09 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 18 Jun 2013 15:54:09 +0000 (UTC) Cc: 14569@debbugs.gnu.org To: Ken Brown Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Jun 18 17:54:08 2013 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 1UoyES-0007xe-8e for geb-bug-gnu-emacs@m.gmane.org; Tue, 18 Jun 2013 17:54:08 +0200 Original-Received: from localhost ([::1]:44142 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoyER-0008A6-SV for geb-bug-gnu-emacs@m.gmane.org; Tue, 18 Jun 2013 11:54:07 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:39099) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoyEO-000887-96 for bug-gnu-emacs@gnu.org; Tue, 18 Jun 2013 11:54:05 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UoyEN-0004ac-2i for bug-gnu-emacs@gnu.org; Tue, 18 Jun 2013 11:54:04 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:59033) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UoyEM-0004aY-VJ for bug-gnu-emacs@gnu.org; Tue, 18 Jun 2013 11:54:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1UoyEM-0006de-AC for bug-gnu-emacs@gnu.org; Tue, 18 Jun 2013 11:54:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 18 Jun 2013 15:54:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 14569 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 14569-submit@debbugs.gnu.org id=B14569.137157084025506 (code B ref 14569); Tue, 18 Jun 2013 15:54:02 +0000 Original-Received: (at 14569) by debbugs.gnu.org; 18 Jun 2013 15:54:00 +0000 Original-Received: from localhost ([127.0.0.1]:53349 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UoyEJ-0006dI-0s for submit@debbugs.gnu.org; Tue, 18 Jun 2013 11:53:59 -0400 Original-Received: from mtaout22.012.net.il ([80.179.55.172]:32895) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1UoyED-0006cr-Nw for 14569@debbugs.gnu.org; Tue, 18 Jun 2013 11:53:55 -0400 Original-Received: from conversion-daemon.a-mtaout22.012.net.il by a-mtaout22.012.net.il (HyperSendmail v2007.08) id <0MOL00J00IS8E300@a-mtaout22.012.net.il> for 14569@debbugs.gnu.org; Tue, 18 Jun 2013 18:53:46 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout22.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MOL00JRVITM9R20@a-mtaout22.012.net.il>; Tue, 18 Jun 2013 18:53:46 +0300 (IDT) In-reply-to: <51BF6E65.6030102@cornell.edu> 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:75289 Archived-At: > Date: Mon, 17 Jun 2013 16:15:33 -0400 > From: Ken Brown > CC: Jan Djärv , 14569@debbugs.gnu.org > > > emacsdbg = EMACSLOADPATH=$(lisp) LC_ALL=C gdb --batch-silent --return-child-result -ex 'b abort' -ex run --args $(EMACS) $(EMACSOPT) > > This causes gdb to exit, whether or not the breakpoint was hit, without > giving the user a chance to get a backtrace. I tried adding > > -x $(lisp)/commands.txt > > where commands.txt contains > > commands > bt > end > > but that didn't work. gdb still exited (with an error) when > compile-onefile failed, but it didn't print a backtrace first. There > has to be a way to get a backtrace when gdb runs in batch mode. Do you > know how, Eli? Sorry, I went overboard with --batch-silent, please use --batch instead. (--batch-silent prevents the backtrace from showing up.) As for displaying the backtrace, just add the "bt" command to the chain, like this: emacsdbg = EMACSLOADPATH=$(lisp) LC_ALL=C gdb --batch --return-child-result -ex 'b abort' -ex run -ex bt -ex cont --args $(EMACS) $(EMACSOPT) GDB executes the commands given via -ex in order, so think of this as if you typed the commands whenever GDB shows its prompt. Note that I also added "continue", to let Emacs exit abnormally after hitting the breakpoint (or a segfault). When neither the breakpoint nor a fatal signal fire, GDB will say "No stack." when Emacs exits normally, but that's harmless.