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Message-ID: <40855B13.7060706@gnu.org>
Date: Wed, 21 Apr 2004 14:55:00 -0000
From: Andrew Cagney <cagney@gnu.org>
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To: Daniel Jacobowitz <drow@false.org>,
	Randolph Chung <randolph@tausq.org>
Cc: gdb-patches@sources.redhat.com
Subject: Re: [patch] Fix unwind handling for hppa
References: <20040417080536.GB17842@tausq.org> <20040417163525.GA3521@nevyn.them.org>
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>     ]snip] the point is to unwind without magic knowledge of the
>     next frame. [snip]

The unwind sniffer uses the debug info and other function specific 
knowledge to identify a `stackless leaf function'.  For an example, look 
at the s390's stub unwinder.

Andrew