How to debug a mozilla based binary application ?

Komodo Edit crashed on my system , and i tried to debug it , added '-g' option inside komodo script,

And i got:

[New Thread 0xa80c2b70 (LWP 5102)] [New Thread 0xa78c1b70 (LWP 5107)]

Program received signal SIGSEGV, Segmentation fault.
0xa97e1f10 in ?? () from /usr/lib/librsvg-2.so.2
(gdb) bt
#0  0xa97e1f10 in ?? () from /usr/lib/librsvg-2.so.2
#1  0x00000000 in ?? ()
(gdb) c
Continuing.
Operation not permitted

Is there any way to find out the real problem here ? I wanted to know where that last string 'Operation开发者_开发知识库 not permitted' come from , but how ? Many thanks !

added '-g' option inside komodo script,

When you say this, do you mean that you passed -g as a command-line argument?

If so, that won't work. -g (or -ggdb) needs to be passed to gcc, during compilation of Komodo Edit, so that debugging symbols are included in the output.