An event is an occurrence in the debugging process that causes dbx to be notified. Event management refers to the capability of dbx to perform actions when events take place in the program being debugged. When an event occurs, dbx enables you to stop a process, execute arbitrary commands, or print information. The simplest example of an event is a breakpoint. Examples of other events are faults, signals, system calls, calls to dlopen(), and data changes (see Qualifying Breakpoints With Caller Filters).
For more in-depth information about event management, such as event handlers, event safety, creating events, event specifications, and other event management topics, see Event Management.