Re: Exception not being caught
Re: Exception not being caught
- Subject: Re: Exception not being caught
- From: Rick Mann <email@hidden>
- Date: Mon, 21 Mar 2011 14:29:06 -0700
On Mar 21, 2011, at 2:19 PM, Greg Parker wrote:
> On Mar 21, 2011, at 2:06 PM, Kyle Sluder wrote:
>> On Mon, Mar 21, 2011 at 2:03 PM, Greg Parker <email@hidden> wrote:
>>> You can't currently throw an exception across a forwarded call. When the exception unwinder hits the forwarding frame, it stops and the exception goes uncaught. You'll need to put your exception handler at a different level.
>>
>> Does this limitation exist on the desktop as well?
>
> I'm pretty sure it fails on any platform that uses the modern ABI (iOS and 64-bit Mac), but I can't find the bug report at the moment.
>
> (The problem is that the forwarding machinery is hand-written assembly, and nobody added hand-written exception unwind tables to match. With "zero-cost" exceptions, the unwinder cannot process a frame without its unwind tables.)
I just reported a new bug for it:
9164577
Thanks,
--
Rick
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