Using GDB

Using GDB

    date: 2004-2-14
========================
Compile for DGB
    gcc -g file.c -o prog

Start GDB
    gdb -qd progname

Begin Debuging
    run
    kill

Breakpoints
    break [filename:] linenum [if expr]
    break [filename:] funcname [if expr]

    continue
    delete
    disable
    info breakpoints

Watch Codes
    list [linenum | funcname]
    backtrace
    where
    info

    print /fmt <expr>
        print arg[i]
        print arg@10
        print arg[1]@10
        print $1-1
    watch

    whatis
    ptype

Flow Control
    step
    next
    until
    finish    finish current function

    down
    up
       
    call funcname [args]
    finish
    return value

Change Variable Value
    set variable varname= value