exc_state_count  3801 gc/os_dep.c            mach_msg_type_number_t exc_state_count = PPC_EXCEPTION_STATE_COUNT;
exc_state_count  3805 gc/os_dep.c            mach_msg_type_number_t exc_state_count = PPC_EXCEPTION_STATE64_COUNT;
exc_state_count  3825 gc/os_dep.c            (natural_t*)&exc_state,&exc_state_count);