[Bug target/48097] new Throw_2 failures in libjava under Xcode 4.0

[iains at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48097

--- Comment #6 from Iain Sandoe <iains at gcc dot gnu.org> 2011-03-18 08:32:39 UTC ---
(In reply to comment #5)
> That's something that has been fixed in PR26208 by adding S modifier for signal
> frames and introducing _Unwind_GetIPInfo.  So, if Apple unwinder has that
> function, it is just a matter of making sure signal frames are marked and such
> (or MD_FALLBACK_FRAME_STATE_FOR in the unwinder handles it).
> If it doesn't have that entry point and you can't switch to a newer unwinder,
> you are out of luck.

Dawin's (Darwin 8, 9) unwinder is essentially from gcc_s at the time the system
was released;
Darwin 10's unwinder does the same as Darwin 9.

we have _Unwind_GetIPInfo on systems >= Darwin 9.