From: Andrew Haley <aph@redhat.com>
To: Barry Andrews <titanandrews@gmail.com>
Cc: gcc-help@gcc.gnu.org
Subject: Re: Mixing exception handling libraries with non exception handling
Date: Mon, 04 Aug 2008 16:25:00 -0000 [thread overview]
Message-ID: <48972D36.4010005@redhat.com> (raw)
In-Reply-To: <489728DE.50403@gmail.com>
Barry Andrews wrote:
> Andrew Haley wrote:
>>
>> Yes, it is always true AFAIAA. The unwinder reads the data lazily,
>> so unless it actually finds a stack frame belonging to code that has
>> no unwinder data, that should have no effect. The instant the unwinder
>> sees a frame that it can't unwind, it will abort: there is nothing
>> else it can do.
>>
>> Note this: the abort is from within the unwinder, WHILE IT IS
>> TRYING TO UNWIND A ROUTINE WITH NO UNWINDER DATA. So, you have
>> to try to find out why that is happening.
>>
>> gdb is your friend here.
>>
> And that's why it aborts for me. There is no unwinder data at all. I'll
> keep digging, but there are lots of internals here to debug.
OK, so you have to look at a gdb backtrace to see which routine
with no unwinder data is being unwound.
>>> Is there no work around for this? It seems so very strange to me.
>>>
>>
>> Compile with -fexceptions.
>>
> Yeah, I have that. Doesn't help. Did it work for you?
Yes, always.
Andrew.
next prev parent reply other threads:[~2008-08-04 16:25 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-04 14:40 Barry Andrews
2008-08-04 15:00 ` Andrew Haley
[not found] ` <48971DE4.90804@gmail.com>
2008-08-04 15:26 ` Andrew Haley
[not found] ` <48972282.2060208@gmail.com>
2008-08-04 15:54 ` Andrew Haley
[not found] ` <489728DE.50403@gmail.com>
2008-08-04 16:25 ` Andrew Haley [this message]
2008-08-05 14:33 ` Ian Lance Taylor
[not found] ` <489867BB.1090204@gmail.com>
2008-08-05 15:28 ` Andrew Haley
2008-08-05 16:23 ` Ian Lance Taylor
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