vterminate.cc revision 169692
1// Verbose terminate_handler -*- C++ -*- 2 3// Copyright (C) 2001, 2002, 2004, 2005 Free Software Foundation 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the 7// terms of the GNU General Public License as published by the 8// Free Software Foundation; either version 2, or (at your option) 9// any later version. 10 11// This library 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// You should have received a copy of the GNU General Public License along 17// with this library; see the file COPYING. If not, write to the Free 18// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 21// As a special exception, you may use this file as part of a free software 22// library without restriction. Specifically, if other files instantiate 23// templates or use macros or inline functions from this file, or you compile 24// this file and link it with other files to produce an executable, this 25// file does not by itself cause the resulting executable to be covered by 26// the GNU General Public License. This exception does not however 27// invalidate any other reasons why the executable file might be covered by 28// the GNU General Public License. 29 30#include <bits/c++config.h> 31 32#if _GLIBCXX_HOSTED 33#include <cstdlib> 34#include <exception> 35#include <exception_defines.h> 36#include <cxxabi.h> 37# include <cstdio> 38 39using namespace std; 40using namespace abi; 41 42_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 43 44 // A replacement for the standard terminate_handler which prints 45 // more information about the terminating exception (if any) on 46 // stderr. 47 void __verbose_terminate_handler() 48 { 49 static bool terminating; 50 if (terminating) 51 { 52 fputs("terminate called recursively\n", stderr); 53 abort (); 54 } 55 terminating = true; 56 57 // Make sure there was an exception; terminate is also called for an 58 // attempt to rethrow when there is no suitable exception. 59 type_info *t = __cxa_current_exception_type(); 60 if (t) 61 { 62 // Note that "name" is the mangled name. 63 char const *name = t->name(); 64 { 65 int status = -1; 66 char *dem = 0; 67 68 dem = __cxa_demangle(name, 0, 0, &status); 69 70 fputs("terminate called after throwing an instance of '", stderr); 71 if (status == 0) 72 fputs(dem, stderr); 73 else 74 fputs(name, stderr); 75 fputs("'\n", stderr); 76 77 if (status == 0) 78 free(dem); 79 } 80 81 // If the exception is derived from std::exception, we can 82 // give more information. 83 try { __throw_exception_again; } 84#ifdef __EXCEPTIONS 85 catch (exception &exc) 86 { 87 char const *w = exc.what(); 88 fputs(" what(): ", stderr); 89 fputs(w, stderr); 90 fputs("\n", stderr); 91 } 92#endif 93 catch (...) { } 94 } 95 else 96 fputs("terminate called without an active exception\n", stderr); 97 98 abort(); 99 } 100 101_GLIBCXX_END_NAMESPACE 102 103#endif 104