Event treatment for program debugging in multi-microprocessor systems

A distributed debugging system for multi-processor environments is presented, based on the event is defined in terms of a range condition and an access mode for a memory location. Elementary events can be compounded to express event abstractions. On the occurence of an event, the actions connected with that event will be performed. Possible actions are trace and break traps, event counting, and the measurement of time intervals. Implementation issue are discussed with reference to an ad-hoc programmable hardware debugging module.