[patch][python] 0 of 5 - Frame filters and Wrappers

[Tom Tromey]

>>>>> "Phil" == Phil Muldoon <pmuldoon@redhat.com> writes:

Phil> * Frame filters on individual MI commands are turned off with
Phil> --no-frame-filters.  With the "bt" command, they are turned off with
Phil> the raw sub-command (e,g "bt raw").  This is inconsistent at the
Phil> moment, and I expect it will be resolved in review.

What is it that is inconsistent?

Phil> * Python errors when printing?
Phil>   Right now if there is an error encountered, the frame printing is
Phil>   aborted and GDB falls back to its own inbuilt printing routines.
Phil>   This is up for debate, and I hope it sparks a discussion.  If the
Phil>   GDB Python API encounters an error while printing a backtrace,
Phil>   should it:

Phil>     - Abandon the whole backtrace, and have the existing GDB code
Phil>       print it;
    
Phil>     - Abandon that frame, and continue on;

Considering that frame-printing is lazy, I think it would be weird to
try to abandon the whole backtrace and start over.  E.g., suppose the
error occurred after already displaying the first 5 frames -- starting
over would show pretty confusing output.

Whether to keep going, I am not sure.

When printing an error from a Python printer, it would be very nice for
gdb to tell the user how to disable that particular printer.  I think
this ought to be pretty easy.

Tom