RFC: %ebp-based backtrace patch

[Frank Ch. Eigler]

Hi -

On Tue, Jul 07, 2009 at 02:15:19PM +0200, Michael Matz wrote:
> [...]
> > Could gdb partially disassemble such functions to check
> > whether %ebp is likely being used as this heuristic expects?
> 
> Nope.  We don't know the function borders.  [...]

I'm feeling dense, so can you explain why?  We have at least a
PC value, which one could map in the symbol table, no?

- FChE