From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#44942: 28.0.50; Emacs should print a backtrace on uncaught errors in batch mode Date: Sun, 06 Dec 2020 18:59:55 +0200 Message-ID: <83lfeaan04.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="34731"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 44942@debbugs.gnu.org To: Philipp Stephani Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Dec 06 18:09:00 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1klxWt-0008uI-Mu for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 06 Dec 2020 18:08:59 +0100 Original-Received: from localhost ([::1]:40946 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1klxWs-0005xc-Oy for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 06 Dec 2020 12:08:58 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:55162) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1klxPE-0007Ns-Af for bug-gnu-emacs@gnu.org; Sun, 06 Dec 2020 12:01:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:39538) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1klxPC-0003FQ-96 for bug-gnu-emacs@gnu.org; Sun, 06 Dec 2020 12:01:04 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1klxPC-0007CS-85 for bug-gnu-emacs@gnu.org; Sun, 06 Dec 2020 12:01:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 06 Dec 2020 17:01:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 44942 X-GNU-PR-Package: emacs Original-Received: via spool by 44942-submit@debbugs.gnu.org id=B44942.160727402427621 (code B ref 44942); Sun, 06 Dec 2020 17:01:02 +0000 Original-Received: (at 44942) by debbugs.gnu.org; 6 Dec 2020 17:00:24 +0000 Original-Received: from localhost ([127.0.0.1]:51084 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1klxOZ-0007BR-LR for submit@debbugs.gnu.org; Sun, 06 Dec 2020 12:00:23 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:36780) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1klxOY-0007BA-8M for 44942@debbugs.gnu.org; Sun, 06 Dec 2020 12:00:22 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40019) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1klxOQ-0002uA-3y; Sun, 06 Dec 2020 12:00:16 -0500 Original-Received: from [176.228.60.248] (port=1712 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1klxOJ-0008JF-9s; Sun, 06 Dec 2020 12:00:09 -0500 In-Reply-To: (message from Philipp Stephani on Sun, 6 Dec 2020 17:50:17 +0100) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:195138 Archived-At: > From: Philipp Stephani > Date: Sun, 6 Dec 2020 17:50:17 +0100 > > Am So., 29. Nov. 2020 um 16:27 Uhr schrieb Philipp Stephani > : > > > > Am So., 29. Nov. 2020 um 11:48 Uhr schrieb Philipp Stephani > > : > > > > > > > > > $ emacs -Q -batch -eval '(progn (defun foo () (error "Boo")) (foo))' > > > Boo > > > > > > Emacs should print a backtrace here to make it possible to debug such > > > errors. It's possible to force Emacs to print a backtrace by binding > > > `debug-on-error', however, that is incorrect because it changes the > > > meaning of `with-demoted-errors' and `condition-case-unless-debug', > > > causing code that would normally work to fail with an error. Instead, > > > `signal' should print a backtrace if in batch mode and if it jumps to > > > the top-level error handler. It looks like this logic could be > > > special-cased in signal_or_quit, similar to the debugger logic. > > > > > > > I've attached a patch. > > Pushed to master as commit 40e11743ca. This is an incompatible change. Is there a way to get back previous behavior? If so, please mention that in NEWS; if not, let's please provide a way to get back the old behavior. Thanks.