1. Debugging code with limited system resource. Minheng Tan Oct 28 2002

2. Debugging in general Write printf() statements Write Trace Statements Eyeballing Debugger

3. How breakpoints work Patch program with special instruction Save the originals somewhere Execute debugger code when program counter executes the special instruction Example: x86 uses Int13

4. Limited Resource Limited processing power Limited memory/memory managment Limited Operating System support Inadequate user interface

5. Remote debugging Target Host.

6. Problems … Communication facilities Operating system support User Interface