[gccsdk] C++ exceptions not working with GCCSDK 4.7

I seem to be having a problem with programs not catching C++ exceptions

when compiled with GCCSDK 4.7.

Full version:

(GCCSDK GCC 4.7.4 Release 1 Development) 4.7.4 20140527 (

prerelease) [gcc-4_7-branch revision 210956]

 

The following simple program (main.cc) will crash rather than catch

the exception as expected.

 

#include <iostream>

#include <stdexcept>

 

int main(int argc, char *argv[])

{

    try

    {

        std::cout << "Before throw" << std::endl;

        throw std::runtime_error("Test throw and catch");

    } catch(...)

    {

        std::cout << "Caught thrown exception as expected\n" << std::endl;

    }

    std::cout << "After try/catch block" << std::endl;

}

 

I'm compiling it using the following makefile.

 

# Makefile for exceptcrash

 

SRC=main.cc

CXX=~/gccsdk/cross/bin/arm-unknown-riscos-g++

CXXFLAGS= -O2 -mthrowback

TARGET=exceptnotcaught

 

 

all:    $(TARGET)

 

$(TARGET):    $(SRC:.cc=.o)

    $(CXX)  -static $(SRC:.cc=.o) -o $(TARGET)ELF,e1f

    ~/gccsdk/cross/bin/elf2aif $(TARGET)ELF,e1f $(TARGET),ff8

 

 

The ELF version crashes as well at the aif version.

 

The output from the program is:

 

Before throw

terminate called after throwing an instance of 'std::runtime_error'

terminate called recursively

 

Fatal signal received: Aborted

 

Stack backtrace:

 

Running thread 0x84968

  (  c56e84) pc:    6c774 lr:    6cc18 sp:   c56e88  __write_backtrace()

  (  c56ef4) pc:    6c890 lr:    6cf7c sp:   c56ef8  __unixlib_raise_signal()

  (  c56f04) pc:    6cf60 lr:    536cc sp:   c56f08  raise()

  (  c56f18) pc:    53690 lr:    3d1e4 sp:   c56f1c  abort()

  (  c56f38) pc:    3d118 lr:    34b08 sp:   c56f3c  __gnu_cxx::__verbose_terminate_handler()()

  (  c56f48) pc:    34afc lr:    34b60 sp:   c56f4c  __cxxabiv1::__terminate(void (*)())()

  (  c56f8c) pc:    3d114 lr:    34b08 sp:   c56f90  __gnu_cxx::__verbose_terminate_handler()()

  (  c56f9c) pc:    34af8 lr:    34b60 sp:   c56fa0  __cxxabiv1::__terminate(void (*)())()

  (  c56fec) pc:     84f0 lr:    5828c sp:   c56ff0  main()

 

 

Can anyone else confirm this isn't working?

 

Regards,

Alan