[cdt-dev] catchpoints

[Elena Laskavaia <ELaskavaia@xxxxxxx>]

I looked in details of how catchpoints supported in gdb. It has a lot of 
exciting features in a help, but they barely work.

(gdb) help catch
Set catchpoints to catch events.
Raised signals may be caught:
        catch signal              - all signals
        catch signal <signame>    - a particular signal
Raised exceptions may be caught:
        catch throw               - all exceptions, when thrown
        catch throw <exceptname>  - a particular exception, when thrown
        catch catch               - all exceptions, when caught
        catch catch <exceptname>  - a particular exception, when caught
Thread or process events may be caught:
        catch thread_start        - any threads, just after creation
        catch thread_exit         - any threads, just before expiration
        catch thread_join         - any threads, just after joins
Process events may be caught:
        catch start               - any processes, just after creation
        catch exit                - any processes, just before expiration
        catch fork                - calls to fork()
        catch vfork               - calls to vfork()
        catch exec                - calls to exec()
Dynamically-linked library events may be caught:
        catch load                - loads of any library
        catch load <libname>      - loads of a particular library
        catch unload              - unloads of any library
        catch unload <libname>    - unloads of a particular library
The act of your program's execution stopping may also be caught:
        catch stop
C++ exceptions may be caught:
        catch throw               - all exceptions, when thrown
        catch catch               - all exceptions, when caught
Ada exceptions may be caught:
        catch exception           - all exceptions, when raised
        catch exception <name>    - a particular exception, when raised
        catch exception unhandled - all unhandled exceptions, when raised
        catch assert              - all failed assertions, when raised


 From this list gdb 6.7 does support catch catch and catch throw, 
without conditions and exception name, and only after program is already 
running



So the questions are:
1 - do any other debuggers support similar functionality? do we want 
public API and debugger independent ui for it?
2 - or do we want to implement it for gdb only, assuming they eventually 
would implement it?