Read the Backtrace Summary

Advanced Monitoring Features › Backtrace Facility › Read the Backtrace Summary

Read the Backtrace Summary

The Backtrace Summary summarizes the program's execution path using statement blocks. By tracing the execution path, block by block, you can follow the flow of your program's logic. The statement block column is located on the left side of the screen and contains two columns of numbers:

Statement numbers in the left column received control from a branch, command level CALL, a PERFORM, or a GOTO.
Statement numbers in the right column issued the branch to the next statement identified.

From the Backtrace Summary screen you can do the following tasks:

Reposition the display to view statement-by-statement details of the program's execution path by:
- Pressing PF2
- Marking a statement block with s, and then pressing Enter
Assign a bookmark, consisting of one to four characters, to one or more backtrace positions for faster and easier navigation through the Backtrace Summary
Trace program execution using the following PF keys:

PF5 1st Stmt	Repositions the Backtrace Summary screen to the first or oldest entry in the Backtrace.
PF6 Last Stmt	Repositions the Backtrace Summary screen to the last or newest entry in the Backtrace.
PF7 Backward	Scrolls the Backtrace Summary screen backward (up) a full screen.
PF8 Forward	Scrolls the Backtrace Summary screen forward (down) a full screen.
PF11 Prev Bloc	Displays the previous statement block.
PF12 Next Bloc	Displays the next statement block.