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[Bug nptl/11670] Variables defined in pthread_cleanup_push() macro may be optimised away which breaks __sigsetjmp
- From: "christian dot eggers at kathrein dot de" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 7 Jun 2010 13:03:39 -0000
- Subject: [Bug nptl/11670] Variables defined in pthread_cleanup_push() macro may be optimised away which breaks __sigsetjmp
- References: <20100605071837.11670.ceggers@gmx.de>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From christian dot eggers at kathrein dot de 2010-06-07 13:03 -------
(In reply to comment #4)
> GCC already knows that __sigsetjmp returns twice.
Are you sure?
# cd src/gcc-4.4.4
# find . | xargs grep __sigsetjmp
[some files under fixincludes]
<EOF>
I've no idea about GCC internals, but how does GCC know about the special
behaviour of __sigsetjmp()? Is this documented somewhere?
--
http://sourceware.org/bugzilla/show_bug.cgi?id=11670
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