Read the Backtrace Summary

PL/I Advanced Monitoring Features › The Backtrace Facility › Access the Backtrace Summary › Read the Backtrace Summary

Read the Backtrace Summary

The Backtrace Summary screen summarizes the program's execution. This screen displays the statement number and source of the first statement in each contiguous group of executed program statements.

The order of the statements reflects the program's execution path.
The top statement is the first statement executed; the bottom statement is the most recently executed statement.

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, 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:

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.