vterminate.cc revision 132720
1132720Skan// Verbose terminate_handler -*- C++ -*- 2132720Skan 3132720Skan// Copyright (C) 2001, 2002, 2004 Free Software Foundation 4132720Skan// 5132720Skan// This file is part of the GNU ISO C++ Library. This library is free 6132720Skan// software; you can redistribute it and/or modify it under the 7132720Skan// terms of the GNU General Public License as published by the 8132720Skan// Free Software Foundation; either version 2, or (at your option) 9132720Skan// any later version. 10132720Skan 11132720Skan// This library is distributed in the hope that it will be useful, 12132720Skan// but WITHOUT ANY WARRANTY; without even the implied warranty of 13132720Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14132720Skan// GNU General Public License for more details. 15132720Skan 16132720Skan// You should have received a copy of the GNU General Public License along 17132720Skan// with this library; see the file COPYING. If not, write to the Free 18132720Skan// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 19132720Skan// USA. 20132720Skan 21132720Skan// As a special exception, you may use this file as part of a free software 22132720Skan// library without restriction. Specifically, if other files instantiate 23132720Skan// templates or use macros or inline functions from this file, or you compile 24132720Skan// this file and link it with other files to produce an executable, this 25132720Skan// file does not by itself cause the resulting executable to be covered by 26132720Skan// the GNU General Public License. This exception does not however 27132720Skan// invalidate any other reasons why the executable file might be covered by 28132720Skan// the GNU General Public License. 29132720Skan 30132720Skan#include <bits/c++config.h> 31132720Skan#include <cstdlib> 32132720Skan#include <exception> 33132720Skan#include <exception_defines.h> 34132720Skan#include <cxxabi.h> 35132720Skan# include <cstdio> 36132720Skan 37132720Skanusing namespace std; 38132720Skanusing namespace abi; 39132720Skan 40132720Skannamespace __gnu_cxx 41132720Skan{ 42132720Skan // A replacement for the standard terminate_handler which prints 43132720Skan // more information about the terminating exception (if any) on 44132720Skan // stderr. 45132720Skan void __verbose_terminate_handler() 46132720Skan { 47132720Skan static bool terminating; 48132720Skan if (terminating) 49132720Skan { 50132720Skan fputs("terminate called recursively\n", stderr); 51132720Skan abort (); 52132720Skan } 53132720Skan terminating = true; 54132720Skan 55132720Skan // Make sure there was an exception; terminate is also called for an 56132720Skan // attempt to rethrow when there is no suitable exception. 57132720Skan type_info *t = __cxa_current_exception_type(); 58132720Skan if (t) 59132720Skan { 60132720Skan // Note that "name" is the mangled name. 61132720Skan char const *name = t->name(); 62132720Skan { 63132720Skan int status = -1; 64132720Skan char *dem = 0; 65132720Skan 66132720Skan dem = __cxa_demangle(name, 0, 0, &status); 67132720Skan 68132720Skan fputs("terminate called after throwing an instance of '", stderr); 69132720Skan if (status == 0) 70132720Skan fputs(dem, stderr); 71132720Skan else 72132720Skan fputs(name, stderr); 73132720Skan fputs("'\n", stderr); 74132720Skan 75132720Skan if (status == 0) 76132720Skan free(dem); 77132720Skan } 78132720Skan 79132720Skan // If the exception is derived from std::exception, we can 80132720Skan // give more information. 81132720Skan try { __throw_exception_again; } 82132720Skan#ifdef __EXCEPTIONS 83132720Skan catch (exception &exc) 84132720Skan { 85132720Skan char const *w = exc.what(); 86132720Skan fputs(" what(): ", stderr); 87132720Skan fputs(w, stderr); 88132720Skan fputs("\n", stderr); 89132720Skan } 90132720Skan#endif 91132720Skan catch (...) { } 92132720Skan } 93132720Skan else 94132720Skan fputs("terminate called without an active exception\n", stderr); 95132720Skan 96132720Skan abort(); 97132720Skan } 98132720Skan} // namespace __gnu_cxx 99