more patches

[Ulrich Drepper]

Richard Henderson <rth@cygnus.com> writes:

> The solution there is to compile everything with -fexceptions and
> use the frame unwind info that is then available.

This is quite expensive and I really don't want to use it if possible.

Since the -momit-leaf-frame-pointer option is available I think it is
reasonable to ask to compile programs which want to use backtracing
not to be compiled with -fomit-frame-pointer.  In fact, it should be
panned completley since some of the future debugging aids I've planned
will also depend on this.

If somebody really insists on using the option one still can ask
her/him to implement the exception handling stuff (if Richard hasn't
done it for Alpha first :-).

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