Distributed Debugging Environment (DDE)

Summary of Change

All these items are described in detail in the HP-UX Programming Tools Release Notes (part number 5965-4409).

Changes to the Menu Bar

The HP DDE menu bar now contains a "Tools" pull-down menu with one selection, "Performance Analyzer". This menu selection starts the Puma performance analysis tool (one of the tools included in the HP Programmer's Analysis Kit), allowing you to run Puma while debugging a program.

In addition, the "File:Quit" menu selection has changed to "File:Exit".

Impact

The primary impact of DDE 4.1 is its ability to debug programs that use kernel threads, with all the threading features formerly available for user-threaded applications.

The impact of fast watchpoints is that you are able to set watchpoints on global data and expect the program being debugged to run at normal speed under most circumstances.

Compatibility

All previous DDE functionality and scripts (for versions 4.01 and 4.0) will continue to operate as before.

DDE version 4.1 will not operate under versions of HP-UX prior to 10.30. Prior versions of DDE (4.01 and under, as well as XDB) will operate under 10.30, but will not enable debugging of kernel threads.

Performance

There is no change in performance in DDE 4.1 except that data watchpoints will, under appropriate circumstances, allow the program being debugged to run at normal speed rather than slowed significantly as is with prior versions of DDE.