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cdt dsf: Breakpoints that do not stop program execution [message #1470666]

Wed, 12 November 2014 14:24

Artemis Papakonstantinou

Messages: 8
Registered: November 2014

Junior Member

I am implementing a debugger plugin for an arm target which is connected via JTAG with a pc. My plugin uses the JLink GNU ARM Eclipse plugin, which is extending dsf-gdb functionality.

I have already managed to catch MIBreakpointHitEvent with my DsfServiceEventHandler and exeute code which sends breakpoint info to an external java application.

The java application collects real time traces from the target device, so it would be very usefull to have breakpoints that do not stop the program execution (halt the arm core).

The first approach used is C/C++ Tracepoints, which are not stopping program execution. I would like to add my own TracePointAction. But C/C++ TracePointActions seem not to be extensible. Package: org.eclipse.cdt.dsf.gdb.internal.tracepointactions does not belong to the known cdt extension points: http://help.eclipse.org/luna/index.jsp?topic=%2Forg.eclipse.cdt.doc.isv%2Freference%2Fextension-points%2Findex.html..
Are TracePointActions expected to be extendible in the future?Is there any other way to catch a TracePoint "hit" event? (I also tried TracepointActionManager.getInstance().addAction() with no luck)

The second approach was to use conditional breakpoints. If the condition is false, the breakpoint is not triggered and the program execution is not supsended. I would like to catch an event from that in order to execute my code which communicates with my java application.
Is there any event generated, indicating that the breakpoint condition is currently being evaluated?
Could I override preprocessOnSuspend of org.eclipse.cdt.debug.edc.internal.services.dsf.RunControl?I am not sure if this is triggered only when a breakpoint is hit or when a breakpoint is found and its condition is evaluated.

Any help would be appreciated, because Mad

[Updated on: Wed, 12 November 2014 15:36]

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