Programmer Utilities › Introduction › Overview › Debug Aids › Start Debug Utility

Start Debug Utility

The Toolkit utility Start Debug (YSTRDBG) enables you to set up a debug session for a program using directives stored in the program’s source.

• Identical debug sessions can be entered repeatedly. If you alter the source for a program and recompile it, the line sequence numbers for your breakpoints will automatically be adjusted.
• Many different debug sets are allowed. A debug set consists of one or more breakpoints to be inserted according to the source directives.
• Variables can be specified for display at each breakpoint.

Refer to the YSTRDBG command diagram for details about how to specify breakpoint sets.

The Toolkit command Start Debug helps you to program in an efficient top down manner. Sets of debug directives can be placed at strategic points in a new program as a routine part of your programming. Each debug set can reflect a different control level in your program, for example, main control, key validation, detail validation, update routines. You can then make use of the debug facilities for routine testing of the program and for problem shooting later on.