From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16371 invoked by alias); 12 Oct 2017 17:24:30 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 15993 invoked by uid 89); 12 Oct 2017 17:24:16 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.8 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy=Hx-spam-relays-external:ESMTPA, HContent-Transfer-Encoding:8bit X-HELO: out2-smtp.messagingengine.com Received: from out2-smtp.messagingengine.com (HELO out2-smtp.messagingengine.com) (66.111.4.26) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 12 Oct 2017 17:24:15 +0000 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 4FE7620EFF for ; Thu, 12 Oct 2017 13:24:11 -0400 (EDT) Received: from frontend1 ([10.202.2.160]) by compute6.internal (MEProxy); Thu, 12 Oct 2017 13:24:11 -0400 X-ME-Sender: Received: from [192.168.1.102] (host86-141-130-144.range86-141.btcentralplus.com [86.141.130.144]) by mail.messagingengine.com (Postfix) with ESMTPA id EEDF87E6C9 for ; Thu, 12 Oct 2017 13:24:10 -0400 (EDT) Subject: Re: gdb 7.11.1-2 started within emacs fails To: The Cygwin Mailing List References: <207e93bf-8f7e-57a3-1abc-cc645c79020c@cornell.edu> <9bed0b67-2930-ee6b-8361-4bf4d9d7d542@dronecode.org.uk> <9fbef412-169a-48fd-362e-249e0b585481@cornell.edu> From: Jon Turney Message-ID: <934635e9-edcd-9668-76e1-b237efc918ff@dronecode.org.uk> Date: Thu, 12 Oct 2017 17:24:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: <9fbef412-169a-48fd-362e-249e0b585481@cornell.edu> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-SW-Source: 2017-10/txt/msg00115.txt.bz2 On 11/10/2017 21:32, Ken Brown wrote: > On 10/11/2017 3:44 PM, Jon Turney wrote: >> On 27/09/2016 21:15, Ken Brown wrote: >>> On 9/27/2016 2:47 PM, Rockefeller, Harry wrote: >>>> Using program foo: >>>>       program foo >>>>       e = 1.0 >>>>       stop >>>>       end >>>> >>>> $ /usr/bin/gfortran    -g foo.f -o foo >>>> >>>> Emacs version info: GNU Emacs 25.1.1 (i686-pc-cygwin, GTK+ Version >>>> 3.18.9) of 2016-09-17 >>>> >>>> Inside emacs I ran M-x gud-gdb and got >>>> ... GNU gdb (GDB) (Cygwin 7.11.1-2) 7.11.1 ... >>>> (gdb) b 1 >>>> Breakpoint 1 at 0x4011d6: file foo.f, line 1. >>>> (gdb) r >>>> Starting program: /cygdrive/c/Users/harryr/foo.exe >>>> [New Thread 6296.0x22ac] >>>> [New Thread 6296.0x24d4] >>>> readline: readline_callback_read_char() called with no handler! >>>> Debugger aborted (core dumped) >>>> >>>> Foo written in C++ also fails with the same message. >>>> Running gdb foo in bash gives the expected result: >>>> gdb stops at first executable line prompting for next gdb command. >>> >>> I can confirm that this happens also with gdb-7.11.1-1 but not >>> gdb-7.10.1-1.  (I tested on x86_64, since gdb-7.10.1-1 is broken on >>> x86.) >>> >>> It also fails with M-x gdb instead of M-x gud-gdb, but with a >>> different error message: >>> >>>    Failed to resume program execution (ContinueDebugEvent failed, >>> error 87) >> >> These problem seem not longer occur due to upstream changes in gdb 7.12. > > Everything seems fine on x86_64 and with M-x gud-gdb on x86.  But when I > run M-x gdb on x86 (even with no file), gdb crashes. Thanks for testing. It seems this issue is known [1], so I made a gdb 7.12.1-2 with the work-around from there applied, which seems to fix M-x gdb on x86. [1] https://sourceware.org/bugzilla/show_bug.cgi?id=21078 -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple