gdb: gdb (the GNU symbolic debugger) gdb: GDB, the GNU Project debugger, allows you to see what is going on gdb: inside another program while it executes -- or what another program gdb: was doing at the moment it crashed. GDB can do four main kinds of gdb: things to help you catch bugs in the act: 1) Start your program, gdb: specifying anything that might affect its behavior. 2) Make your gdb: program stop on specified conditions. 3) Examine what has happened, gdb: when your program has stopped. 4) Change things in your program, so gdb: you can experiment with correcting the effects of one bug and go on gdb: to learn about another. The program being debugged can be written in gdb: Ada, C, C++, Objective-C, Pascal and many other languages.