Re: [RFA] Use TRY/CATCH in remove_prev_frame

[Pedro Alves <palves@redhat.com>]

On 05/25/2018 03:58 PM, Tom Tromey wrote:
>>>>>> "Pedro" == Pedro Alves <palves@redhat.com> writes:
> 
>>> +  CATCH (ex, RETURN_MASK_ERROR)
> 
> Pedro> Use RETURN_MASK_ALL.
> 
> I made this change but someone may want to audit the other uses of
> TRY/CATCH in frame.c.  They all use RETURN_MASK_ERROR.  Or I could just
> convert them all.

The other uses are all correct.  They want to handle specific
types of exceptions, like:

  CATCH (ex, RETURN_MASK_ERROR)
    {
      if (ex.error == MEMORY_ERROR)

  CATCH (ex, RETURN_MASK_ERROR)
    {
      if (ex.error == NOT_AVAILABLE_ERROR)

All other types of exception are rethrown.  So it would be
useless to use RETURN_MASK_ALL for those, because it would
mean we would catch Ctrl-C just to rethrow it again
immediately.

Thanks,
Pedro Alves