Catching Signals

You may specify whether or not process control should return to the debugger when a specified signal is generated. This is done with the Catch facility. You may also specify whether or not the user program is to continue as if it had or had not incurred the given signal. This is done with the Ignore option.

There are three pertinent commands to the Catch facility: CATCH, NCATCH, and LCATCH:

• The CATCH command specifies that a signal should be caught and allows you to specify whether or not the signal is to be ignored by the user program.
• The NCATCH command specifies that the signal should not be caught.
• The LCATCH command lists Catch settings for a specified signal or all signals.