Re: [Gnash-dev] setting breakpoints in a supporting library

[Rob Savoye]

On 09/07/09 10:21, dww wrote:
> I am trying to debug gtk-gnash to become more familiar with the code and
> gain experience with gdb debugging.
>
> I was trying to set breakpoints in IOChannel.cpp
> I first did a
> symbol-file /usr/local/lib/gnash/libgnashbase-trunk.so
> then I set breakpoint in IOChannel.cpp

  Loading the symbol table isn't going to do it. To test an installed 
gnash, run GDB on the gtk-gnash (or kde4-gnash, etc...) executable. Use 
the GDB command "set args" to specify the command line for Gnash, 
including the name of the swf file you are running. Then it'll work. I 
use ".gdbinit" files to set the default commands for Gnash when 
debugging, including doing a "tb main" followed by "run", which loads 
the symbol table making setting breakpoints easier. Otherwise just 
answer "y" when GDB prompts you about setting a breakpoint in a 
dynamically loaded library.

        - rob -