X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Message-ID: <20071004202558.gn6sv47ayockk8s8@webmail.udc.es> Date: Thu, 04 Oct 2007 20:25:58 +0200 From: Alberto Luaces =?iso-8859-1?b?RmVybuFuZGV6?= To: cygwin@cygwin.com Subject: RE: Debugging with cygwin tools References: <4704CA0F.9010907@udc.es> <016801c806a4$501cd850$2e08a8c0@CAM.ARTIMI.COM> In-Reply-To: <016801c806a4$501cd850$2e08a8c0@CAM.ARTIMI.COM> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes"; format="flowed" Content-Disposition: inline User-Agent: Internet Messaging Program (IMP) H3 (4.1.1) X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id l94IQPYC015255 Dave Korn : > On 04 October 2007 16:15, René Berber wrote: > >> Alberto Luaces wrote: >> >>> I am just starting to learn how to use the debugging tools available in >>> Cygwin. To do so, I have a test program deliberately designed to crash: >>> [snip] I have compiled it with debugging information: >>> >>> g++ -g -O0 -o core core.cpp >>> >>> Then I try to run it with gdb: >>> >>> gdb core.exe >>> >>> (gdb) b main >>> Breakpoint 1 at 0x401175: file core.cpp, line 4. >>> (gdb) r >>> Starting program: /home/Demostración/testsC++/core.exe >>> Error: dll starting at 0x77d41000 not found. >> --^^^^^ >> Isn't this clear? >> >> [snip] >>> How can I finally debug my program? >> >> You probably have a problem with your PATH, take a look at it with `echo >> $PATH`, > > Hey, I think you don't really mean to use backtick quotes there... :) > >> it should include /usr/bin and /cygdrive/c/WINDOWS/system32 or >> similar if you renamed the root, it should NOT have syntax errors... which >> is probably the cause of your problem. > > Also, running "cygcheck core.exe" should show up any missing DLL straight > away. Dave, René, thanks for the tips, I will check the PATH and look for missing DLLs then, although my program is nothing more than a main function dereferencing a null pointer, so it should not have any special dependencies. The missing DLL message was a bit misleading because gdb crashes after printing it, so I thought it was an error message from gdb.exe and not from my program. Maybe the non 7-bit ASCII character found on my user name (Demostración) is causing some issues with PATH, could I try to rename my home directory directly or would I need to change something more? At least I have now several things to try... Alberto ---------------------------------------------------------------- Correo enviado usando el servicio de Webmail de la UDC. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/