From mboxrd@z Thu Jan  1 00:00:00 1970
From: nbecker@hns.com (Neal D. Becker)
To: gcc@gcc.gnu.org
Subject: __builtin_return_address question
Date: Wed, 21 Aug 2002 06:35:00 -0000
Message-id: <x8865y4gx58.fsf@rpppc1.md.hns.com>
X-SW-Source: 2002-08/msg01234.html

I'm trying to make a stack trace function.  Use of
__builtin_return_address looks promising, but the arg has to be a
constant expression.  Because the arg can't be a variable, I don't see
how I can traceback more than one level of the stack.  Any ideas?