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Date:	Sat, 11 Dec 2004 00:34:37 +0200
From:	"Eli Zaretskii" <eliz AT gnu DOT org>
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	Delorie on Fri, 10 Dec 2004 08:09:04 -0500)
Subject:	Re: Patches to build GDB 6.3
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> Date: Fri, 10 Dec 2004 08:09:04 -0500
> From: DJ Delorie <dj AT delorie DOT com>
> 
> C++ uses the EH unwind information to rewrite the stack frames to
> "undo" multiple levels of call frames in one shot.  It's not only one
> of the strangest things to debug, but it's second on our bug list
> after optimization failures.
> 
> Think of it as a longjmp() on hallucinogens.

Thanks for the explanation.  Does this mean it uses BP and SP in some
unorthodox way?

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