GDB on os4

Lately i start to write some research-kind article about aos4 internals from the 3d party coder perpective, and while i still works on it, i found that few parts of articles can fits to some small ones, about different aspects. Just something which can be interesting to read for some beginners. And so, as result i just make first one, which cover some first steps with GDB, for someone who not familiar with it, or just want something aos4 specific only.
If you in interst, check this out on there