From owner-freebsd-current  Thu Mar 14  7:41:14 2002
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Date: Thu, 14 Mar 2002 08:40:35 -0700 (MST)
Message-Id: <20020314.084035.00348970.imp@village.org>
To: tlambert2@mindspring.com
Cc: edhall@weirdnoise.com, mb@imp.ch, kris@obsecurity.org,
	jstocker@tzi.de, current@FreeBSD.ORG, hackers@FreeBSD.ORG,
	obrien@FreeBSD.ORG, edhall@screech.weirdnoise.com
Subject: Re: gcc -O broken in CURRENT
From: "M. Warner Losh" <imp@village.org>
In-Reply-To: <3C9048FC.1C9C57B5@mindspring.com>
References: <200203132015.g2DKFYv17886@screech.weirdnoise.com>
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	<3C9048FC.1C9C57B5@mindspring.com>
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In message: <3C9048FC.1C9C57B5@mindspring.com>
            Terry Lambert <tlambert2@mindspring.com> writes:
: "M. Warner Losh" wrote:
: > In message: <200203132015.g2DKFYv17886@screech.weirdnoise.com>
: >             Ed Hall <edhall@weirdnoise.com> writes:
: > : Exception-handling is broken with -O in -stable, and has been for years.
: > : FreeBSD is one of the few systems that use setjmp/longjmp stack unwinds
: > : to implement exceptions, so when the GCC folks broke that path, it was
: > : never fixed.  There are supposedly patches floating around that fix the
: > : problem, but they either didn't work as advertised or the ball got dropped.
: > 
: > Hmmmm, C++ exceptions work in -stable with -O and have for at least a
: > year.  At least they are working for us in our environment.  What's
: > busted?
: 
: Per thread exception stacks?  THat's where I'd look...

Yes, that works.

Warner

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