1// -*- C++ -*- Exception handling routines for catching. 2// Copyright (C) 2001, 2008, 2009 Free Software Foundation, Inc. 3// 4// This file is part of GCC. 5// 6// GCC is free software; you can redistribute it and/or modify 7// it under the terms of the GNU General Public License as published by 8// the Free Software Foundation; either version 3, or (at your option) 9// any later version. 10// 11// GCC is distributed in the hope that it will be useful, 12// but WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14// GNU General Public License for more details. 15// 16// Under Section 7 of GPL version 3, you are granted additional 17// permissions described in the GCC Runtime Library Exception, version 18// 3.1, as published by the Free Software Foundation. 19 20// You should have received a copy of the GNU General Public License and 21// a copy of the GCC Runtime Library Exception along with this program; 22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23// <http://www.gnu.org/licenses/>. 24 25 26#include <typeinfo> 27#include <cxxabi.h> 28#include "unwind-cxx.h" 29 30namespace __cxxabiv1 31{ 32 33// Returns the type_info for the currently handled exception [15.3/8], or 34// null if there is none. 35extern "C" 36std::type_info *__cxa_current_exception_type () throw() 37{ 38 __cxa_eh_globals *globals = __cxa_get_globals (); 39 __cxa_exception *header = globals->caughtExceptions; 40 if (header) 41 { 42 if (__is_dependent_exception (header->unwindHeader.exception_class)) 43 { 44 __cxa_dependent_exception *de = 45 __get_dependent_exception_from_ue (&header->unwindHeader); 46 header = __get_exception_header_from_obj (de->primaryException); 47 } 48 return header->exceptionType; 49 } 50 else 51 return 0; 52} 53 54} // namespace __cxxabiv1 55