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[Bug ports/2682] On ARM EABI, exit should be marked EXIDX_CANTUNWIND
- From: "jsm28 at gcc dot gnu dot org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: 22 May 2006 11:33:56 -0000
- Subject: [Bug ports/2682] On ARM EABI, exit should be marked EXIDX_CANTUNWIND
- References: <20060521225027.2682.jsm28@gcc.gnu.org>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From jsm28 at gcc dot gnu dot org 2006-05-22 11:33 -------
Yes, it's a general C++ requirement from 18.3 [lib.support.start.term] paragraph 5.
If on a given platform you can tell that there isn't unwind information for the
stack frame for exit, then the unwinding will stop there; it's a peculiarity of
ARM unwind information that you can't tell that and need unwind information all
the way up the stack until explicitly marked to stop unwinding. I don't know
how or whether this (avoiding unwinding through exit) works on IA64 where
everything has unwind information by default.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=2682
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