Debuggers

gdb

gdb - GNU Debugger

• b main - puts breakpoint at the beginning of the program
• b - puts breakpint at the current line
• b N - puts breakpoint at the line N
• b +N - puts breakpoint N lines down from the current line
• b fN - puts the breakpint at the beginning of the function fN
• d N - deletes the breakpoint number N
• info breaks - list breakpoints
• r - runs the program until a breakpint or error
• c - continues running the program until the next breakpoint is reached
• f - runs until the next function is finished
• s - runs the next line of program
• s N - reuns next N lines of the program
• n - like s but does not step into functions
• u N - runs until you get N lines in the front of the current line
• p var - prints the current value of the variable var