[Libreoffice] Debugging UNO references in gdb

Hello,
I'm trying to debug an issue with bookmarks in the Writer import
filter. Right now my biggest problem is, that I don't know how to get
information from the UNO reference objects. The import filter uses
cursors and text ranges to insert the bookmarks into the document. I'm
pretty sure, that the problem lies somewhere here, but I can't query
the cursors and text ranges to make sure. Is there a helper function
for gdb or a trick to do this?

Greetings

eymux