Re: exception crash

[John Max Skaller]

On Mon, 03 Jan 2005 13:35:08 +0200, Attila Feher wrote:

> John Max Skaller wrote:
>> Using: g++ (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
>> When throwing an exception:
>>
>> #0 0xffffe002 in ?? ()
>> #1 0x42028a73 in abort () from /lib/tls/libc.so.6
>> #2 0x400b0b57 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.5
>> #3 0x400b0ba4 in std::terminate() () from /usr/lib/libstdc++.so.5
>> #4 0x400b0d16 in __cxa_throw () from /usr/lib/libstdc++.so.5
>> #5 0x0805ffd3 in xbase(char const*) ()
>>
>> in a program compiled with -O3 -fomit-frame-pointer.
>> Without those options the program works. 
> 
> Have you tried creating the smallest possible code which still has the
> problem?

Briefly I, but my efforts failed. I'm not the developer of
the code, the developer said it is possible there is a bug
exposed by the compiler options.

The confusing thing is I get almost the same backtrack
in this one liner:

int main() { throw 42; }

indicating an uncaught exception. The application mainline
is a subroutine wrapped in a try/catch for the exception
xbase function throws ..

BTW: the error is known and expected, it should
print a diagnostic and terminate gracefully, but
aborts instead. The same behaviour occurs for all
errors.