Frame handling

[Andrew Cagney]

>>>> Question - reading through this again I think the goal of call these
>>>> functions is to work with the current frame and the function get passed the
>>>> child frame so they can do a backtrace if it hasn't already been done... why
>>>> not call a function to do a 1 level backtrace and then eliminate the
>>>> next_frame parameter? It would recduce confusion and most ports will have an
>>>> internal unwind function anyway.
> 
> 
>> 
>>> Question - reading through this again I think the goal of call these
>>> functions is to work with the current frame and the function get passed the
>>> child frame so they can do a backtrace if it hasn't already been done... why
>>> not call a function to do a 1 level backtrace and then eliminate the
>>> next_frame parameter? It would recduce confusion and most ports will have an
>>> internal unwind function anyway.
> 
>> 
>> I'm not sure I understand the question.

> I agree, and I don't think it will make much difference eitehr way, however
> I was just thinking that it would be a whole lot easier to explain these
> functions...
> 

Um, this is still dangling.  Can you please express your question using 
terminology consistent with the frame unwind code.

Andrew