Description
Debugging is a task that requires access to extensive information about a program and its execution state. The more effectively this information can be presented to the user by a debugger, the better tool the debugger becomes. Graphics is a meaningful and effective way of presenting a program's data structures.
This paper describes the design and implementation of an extension to a standard debugger. The extension presents data structures graphically and enables a user to control the format and extent of information provided. The extension to the UNIX debugger DBX runs on a Sun Workstation using multiple windows, a bitmap display, and a mouse pointing device.