1132720Skan// Verbose terminate_handler -*- C++ -*- 2132720Skan 3169691Skan// Copyright (C) 2001, 2002, 2004, 2005 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 18169691Skan// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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> 31169691Skan 32169691Skan#if _GLIBCXX_HOSTED 33132720Skan#include <cstdlib> 34132720Skan#include <exception> 35132720Skan#include <exception_defines.h> 36132720Skan#include <cxxabi.h> 37132720Skan# include <cstdio> 38132720Skan 39132720Skanusing namespace std; 40132720Skanusing namespace abi; 41132720Skan 42169691Skan_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 43169691Skan 44132720Skan // A replacement for the standard terminate_handler which prints 45132720Skan // more information about the terminating exception (if any) on 46132720Skan // stderr. 47132720Skan void __verbose_terminate_handler() 48132720Skan { 49132720Skan static bool terminating; 50132720Skan if (terminating) 51132720Skan { 52132720Skan fputs("terminate called recursively\n", stderr); 53132720Skan abort (); 54132720Skan } 55132720Skan terminating = true; 56132720Skan 57132720Skan // Make sure there was an exception; terminate is also called for an 58132720Skan // attempt to rethrow when there is no suitable exception. 59132720Skan type_info *t = __cxa_current_exception_type(); 60132720Skan if (t) 61132720Skan { 62132720Skan // Note that "name" is the mangled name. 63132720Skan char const *name = t->name(); 64132720Skan { 65132720Skan int status = -1; 66132720Skan char *dem = 0; 67132720Skan 68132720Skan dem = __cxa_demangle(name, 0, 0, &status); 69132720Skan 70132720Skan fputs("terminate called after throwing an instance of '", stderr); 71132720Skan if (status == 0) 72132720Skan fputs(dem, stderr); 73132720Skan else 74132720Skan fputs(name, stderr); 75132720Skan fputs("'\n", stderr); 76132720Skan 77132720Skan if (status == 0) 78132720Skan free(dem); 79132720Skan } 80132720Skan 81132720Skan // If the exception is derived from std::exception, we can 82132720Skan // give more information. 83132720Skan try { __throw_exception_again; } 84132720Skan#ifdef __EXCEPTIONS 85132720Skan catch (exception &exc) 86132720Skan { 87132720Skan char const *w = exc.what(); 88132720Skan fputs(" what(): ", stderr); 89132720Skan fputs(w, stderr); 90132720Skan fputs("\n", stderr); 91132720Skan } 92132720Skan#endif 93132720Skan catch (...) { } 94132720Skan } 95132720Skan else 96132720Skan fputs("terminate called without an active exception\n", stderr); 97132720Skan 98132720Skan abort(); 99132720Skan } 100169691Skan 101169691Skan_GLIBCXX_END_NAMESPACE 102169691Skan 103169691Skan#endif 104