gcc mac throw exception can't be caught.

I debugging a target compiled by gcc44 on mac os x10.6.2

 

And my exception can't be caught. Program always terminate with  "Abort Trap".  gdb catches SIGTRAP

 

I do demo about exception, throw from recursive function, from anthoer function , from deeeper function, but got nothing. So I trun to google and then I got "http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42159"

 

 

A 64 bit build of gcc 4.4.2 installed via darwinports on a Mac Pro server


running Snow Leopard 10.6.2 causes a crash in the following program:





>cat src/test.cpp 







#include <iostream>





struct X


{


        ~X () // crash disappears if there is no destructor


        {


        }


};





void


dummy ()


{


    X x;





    throw 0;


}





int main()


{


    try


    {


        dummy ();


    }


    catch (...)


    {


        std::cout << "CAUGHT" << std::endl;


    }





    return 0;


}





Instead of the expected "CAUGHT" the system pops up with:





Exception Type:  EXC_CRASH (SIGABRT)


Exception Codes: 0x0000000000000000, 0x0000000000000000


Crashed Thread:  0  Dispatch queue: com.apple.main-thread





////////////////


but some guy said :





I can confirm the bug on my system (MacOS 10.6.3, Intel Core i7) with g++


4.4.2, 4.4.3 and 4.4.4. 





However, I have discovered a workaround.  Linking with -lpthread makes the


problem go away, both for this simple test case, and my larger program where I


too discovered the bug.  My program only started failing when I turned off the


OpenMP stuff.  However, if I leave OpenMP off, but link with -lpthread anyway,


the exception stuff works fine.  Likewise, this example program works correctly





Yep, I throw an exception from thread but I can't sure this is the issuse, I'll try tomorrow.


So, good night!


when I compile with -lpthread.






More detail pls refers from "http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42159"" and it's description