my program compiled by GCC crashed

[Andrew Haley]

Íõ¿Ë³Û wrote:
> I'm sorry I'm not that experienced in using GDB.  I would appreciate
> if you let me know what you plan to do with GDB. Thanks in advance.
> 
> Here is the stack trace I got from the core dump with GDB.
> 
> #0  0x00000000008a756d in ?? ()
> (gdb) bt
> #0  0x00000000008a756d in ?? ()
> #1  0xfffffd7ffee02db0 in _Unwind_ForcedUnwind_Body () from
> /usr/lib/64/libc.so.1
> #2  0xfffffd7ffee02eff in _Unwind_ForcedUnwind () from /usr/lib/64/libc.so.1
> #3  0xfffffd7ffd6b9642 in _ex_unwind () from
> /home/jamewang/p2p_core/patch/119964-07/SUNWlibC/reloc/usr/lib/amd64/libCrun.so.1
> #4  0xfffffd7ffee026ac in _thrp_unwind () from /usr/lib/64/libc.so.1
> #5  0xfffffd7ffedfda7c in _thr_exit_common () from /usr/lib/64/libc.so.1
> #6  0xfffffd7ffedfdabe in thr_exit () from /usr/lib/64/libc.so.1
> #7  0xfffffd7ffde8fdae in CommandLoad::_doLoadTo (arg=<value optimized
> out>) at CommandLoad.hh:103 [<<note: here call pthread_exit()]
> #8  0xfffffd7ffee00edb in _thr_setup () from /usr/lib/64/libc.so.1
> #9  0xfffffd7ffee01110 in ?? () from /usr/lib/64/libc.so.1
> #10 0x0000000000000000 in ?? ()

The stack unwinder crashed at thread exit.  That's the reason that
C++ crashes and C doesn't: C doesn't have exceptions.  So, you have
some kind of incompatibility between gcc and your libraries.

Andrew.

> 2009/12/11 Andrew Haley <aph@redhat.com>:
>> Íõ¿Ë³Û wrote:
>>> Hi Andrew,
>>>
>>> Thanks a lot for your reply.
>>>
>>> Yeah, I agree with you.  There may be something wrong with
>>> libicuio.so.3 or something else.
>>>
>>> But we can not say it is nothing to do with GCC. I changed the
>>> compiler from g++ to gcc(of course, I also changed to use stdio.h and
>>> printf), then the core dump went away. With the same code and same
>>> options for the comiler, when I went back to g++, it still cored.  How
>>> can we explain that?
>> Really, really hard to say.  If I had the box there I'd attach gdb and
>> tell you.
>>
>> Andrew.
>>
>>
>>> 2009/12/11 Andrew Haley <aph@redhat.com>:
>>>> Íõ¿Ë³Û wrote:
>>>>> Hi gcc-help,
>>>>>
>>>>> Our system crashed which was compiled by GCC. While, we can not say
>>>>> that GCC compiler is the root cause.
>>>>>
>>>>> But the strange thing is that I created a sample test code and
>>>>> compiled it with GCC. It worked fine when I chose O0 as the
>>>>> optimization level but it crashed when I chose other optimization
>>>>> levels.
>>>>>
>>>>> It did not crashed when I used SUN CC compiler no matter which
>>>>> optimization level I chose.
>>>>>
>>>>> Below please find my test code and Makefile. The code is very simple
>>>>> and the only thing I did is let it link to a library
>>>>> /usr/lib/64/libicuio.so.3.
>>>> This works for me on Linux, so I guess the problem is something to do
>>>> with Solaris, perhaps libicuio.so.3, whatever that is.
>>>>
>>>> Andrew.
>>>>
>>