Notes on debugging.

The GNU Project debugger, displays what is going on 'inside' a program while it executes - or what it was doing at the moment it crashed.

Commands



	gdb ./program
	starts gdb


	run
	executes the code


	s
	steps to the next line


	n
	jumps over the next function


	c
	continues execution


	l
	prints 5 lines above and below current statement


	break
	sets a breakpoint either at line number of function name


	watch
	stops the execution everytime a variable value changes


	display
	prints a variable value on execution stops


	info
	displays information on breakpoints and watchpoints


	clear #
	removes the breakpoint at line #


	condition 1 i == "test"
	breaks at breakpoint 1 when i is "test"

gdb ./program	starts gdb
run	executes the code
s	steps to the next line
n	jumps over the next function
c	continues execution
l	prints 5 lines above and below current statement
break	sets a breakpoint either at line number of function name
watch	stops the execution everytime a variable value changes
display	prints a variable value on execution stops
info	displays information on breakpoints and watchpoints
clear #	removes the breakpoint at line #
condition 1 i == "test"	breaks at breakpoint 1 when i is "test"

Notes on debugging.

Commands

Links