Exemplo n.º 1
0
///  Called by __cxa_rethrow().
_LIBUNWIND_EXPORT _Unwind_Reason_Code
_Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object) {
#if LIBCXXABI_ARM_EHABI
  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), "
                       "private_1=%ld\n",
                       exception_object,
                       (long)exception_object->unwinder_cache.reserved1);
#else
  _LIBUNWIND_TRACE_API("_Unwind_Resume_or_Rethrow(ex_obj=%p), "
                       "private_1=%ld\n",
                       exception_object,
                       (long)exception_object->private_1);
#endif

#if LIBCXXABI_ARM_EHABI
  // _Unwind_RaiseException on EHABI will always set the reserved1 field to 0,
  // which is in the same position as private_1 below.
  return _Unwind_RaiseException(exception_object);
#else
  // If this is non-forced and a stopping place was found, then this is a
  // re-throw.
  // Call _Unwind_RaiseException() as if this was a new exception
  if (exception_object->private_1 == 0) {
    return _Unwind_RaiseException(exception_object);
    // Will return if there is no catch clause, so that __cxa_rethrow can call
    // std::terminate().
  }

  // Call through to _Unwind_Resume() which distiguishes between forced and
  // regular exceptions.
  _Unwind_Resume(exception_object);
  _LIBUNWIND_ABORT("_Unwind_Resume_or_Rethrow() called _Unwind_RaiseException()"
                   " which unexpectedly returned");
#endif
}
Exemplo n.º 2
0
void __attribute__((nonnull)) __cilkrts_gcc_rethrow(__cilkrts_stack_frame *sf)
{
#ifdef __CYGWIN__
    // Cygwin doesn't support exceptions, so _Unwind_Resume isn't available
    // Which means we can't support exceptions either
    __cilkrts_bug("The Cygwin implementation of the Intel Cilk Plus runtime doesn't support exceptions\n");
#else
    if (sf->except_data) {
#if CILK_LIB_DEBUG
        CILK_ASSERT(std::uncaught_exception());
#endif        
        _Unwind_Resume ((_Unwind_Exception *)sf->except_data);
    } else {
        throw;
    }
#endif  // __CYGWIN__
}