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From: Dimitry Andric <dim@FreeBSD.org>
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To: Stefan Farfeleder <stefanf@FreeBSD.org>
Subject: Re: clang 3.2 RC2 miscompiles libgcc?
References: <20121227150724.GA1431@mole.fafoe.narf.at>
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Cc: freebsd-current@freebsd.org, David Chisnall <theraven@freebsd.org>,
 Nathan Whitehorn <nwhitehorn@freebsd.org>
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On 2013-01-08 09:58, Stefan Farfeleder wrote:
> On Tue, Jan 08, 2013 at 12:21:12AM +0100, Dimitry Andric wrote:
...
>> After a lot of splitting up of unwind-dw2.c, I arrived at _Unwind_Resume
>> which when compiled by clang caused the crashes, but when compiled by
>> gcc ran OK.
> your patch seems to work just fine. No crashes whatsoever so far. Thank
> you.

I have committed a slighly cleaned-up version of this hack in r245272,
so until this is fixed by upstream, everybody will at least have a
correctly functioning libgcc on amd64.

Since this issue can potentially also occur on stable/9, I will MFC the
fix too, after a few days timeout.