Re: gobject-introspection: Cryptic error in g-ir-scanner

["Martin Schlemmer" <Martin Schlemmer nwu ac za>]

> > > On 2014/02/04 at 12:04 PM, Ankit Vani <a nevitus org> wrote:
> On Tue, Feb 4, 2014 at 3:27 PM, Bastien Nocera <hadess hadess net> wrote:
> > Try getting a backtrace of the crash. It's likely a bug in the library
> > itself.
>
> Can you tell me how exactly to go about getting a backtrace?
>
> I've tried using gdb on python (to run g-ir-scanner) without any special
> setting, but I'm unable to break on g_log.

Setup PATH, LD_LIBRARY_PATH, etc. needed as per you environment.

Do the following:

# cd /home/ankit/devel/pidgin-dev/finch/libgnt/
# export GI_SCANNER_DEBUG="save-temps"
# make

Note the lines (will have different temporary directory prefix) like:
-----
(process:13172): GLib-CRITICAL **: g_key_file_has_group: assertion 'key_file != NULL' failed
Command '['/home/ankit/devel/pidgin-dev/finch/libgnt/tmp-introspectZP9FjN/Gnt-2.8', 
'--introspect-dump=/home/ankit/devel/pidgin-dev/finch/libgnt/tmp-introspectZP9FjN/functions.txt,/home/ankit/devel/pidgin-dev/finch/libgnt/tmp-introspectZP9FjN/dump.xml']'
 returned non-zero exit status -11
-----

then run (as mentioned, "ZP9FjN" will differ):

# gdb tmp-introspectZP9FjN/Gnt-2.8
(gdb) r --introspect-dump=tmp-introspectZP9FjN/functions.txt,tmp-introspectZP9FjN/dump.xml

You might have to use: 

# gdb tmp-introspectZP9FjN/.libs/Gnt-2.8

if libtool's wrappers are enabled.

Set breakpoints and debug as needed.

Hope this helps.


Regards,
Martin



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