How to Debug C Program using gdb in 6 Simple Steps
gdb command shortcuts
Use following shortcuts for most of the frequent gdb operations.- l – list
- p – print
- c – continue
- s – step
- ENTER: pressing enter key would execute the previously executed command again.
- c or continue: Debugger will continue executing until the next break point.
- n or next: Debugger will execute the next line as single instruction.
- s or step: Same as next, but does not treats function as a single instruction, instead goes into the function and executes it line by line.
- l command: Use gdb command l or list to print the source code in the debug mode. Use l line-number to view a specific line number (or) l function to view a specific function.
- bt: backtrack – Print backtrace of all stack frames, or innermost COUNT frames.
- help – View help for a particular gdb topic — help TOPICNAME.
- quit – Exit from the gdb debugger.
