The first thing to try is surely just to run the program under gdb and to let it crash. When it crashes, ask for a backtrace (bt) to see where you are. You can move from stack frame to stack frame (f -- for example, "f 3" to view frame 3). You can request to see the values of variables with the print command (p). For example "p the_date" will show you the value of variable "the_date".
I find it helpful to run gdb in emacs (M-x gdb). The reason is that it allows me to see source code automatically rather than having to request gdb to list bits of source code at the commandline. Note that I don't have experience debugging gnucash but I have plenty with gdb. Jeff Abrahamson +33 6 24 40 01 57 +44 7920 594 255 http://p27.eu/jeff/ http://transport-nantes.com/ On 19/09/18 23:19, Uli Hansen wrote: > Dear All, > > please be aware that I run gdb the first time in my life to find this > problem. > > When saving from mysql to xml I get a segmentation fault error: > > Thread 1 "gnucash" received signal SIGSEGV, Segmentation fault. > g_date_time_add (datetime=0x0, timespan=0) at > /build/glib2.0-7ZsPUq/glib2.0-2.48.2/./glib/gdatetime.c:1074 > 1074 /build/glib2.0-7ZsPUq/glib2.0-2.48.2/./glib/gdatetime.c: No > such file or directory > > I already comiled the sources from 2.6.12 to dive into this problem. > > > I assume that the cause of my error is an empty date field somewhere > in my database. > > In order to find the proper table and the id, I want to debug with gdb. > > But honestly it's quiet complicated and I'm not familiar with gdb. > > Can somebody give me a hint where to set a breakpoint. Which function > is called to convert from mysql to xml? > > Which file/function could be a good startpoint for me? > > Many thanks in advance. > > Uli > > > _______________________________________________ > gnucash-user mailing list > gnucash-user@gnucash.org > To update your subscription preferences or to unsubscribe: > https://lists.gnucash.org/mailman/listinfo/gnucash-user > If you are using Nabble or Gmane, please see > https://wiki.gnucash.org/wiki/Mailing_Lists for more information. > ----- > Please remember to CC this list on all your replies. > You can do this by using Reply-To-List or Reply-All. -- Jeff Abrahamson +33 6 24 40 01 57 +44 7920 594 255 http://p27.eu/jeff/ http://transport-nantes.com/ _______________________________________________ gnucash-user mailing list gnucash-user@gnucash.org To update your subscription preferences or to unsubscribe: https://lists.gnucash.org/mailman/listinfo/gnucash-user If you are using Nabble or Gmane, please see https://wiki.gnucash.org/wiki/Mailing_Lists for more information. ----- Please remember to CC this list on all your replies. You can do this by using Reply-To-List or Reply-All.
