1// Verbose terminate_handler -*- C++ -*- 2 3// Copyright (C) 2001-2015 Free Software Foundation, Inc. 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 3, 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// 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#include <bits/c++config.h> 26 27#if _GLIBCXX_HOSTED 28#include <cstdlib> 29#include <exception> 30#include <bits/exception_defines.h> 31#include <cxxabi.h> 32# include <cstdio> 33 34using namespace std; 35using namespace abi; 36 37namespace __gnu_cxx 38{ 39_GLIBCXX_BEGIN_NAMESPACE_VERSION 40 41 // A replacement for the standard terminate_handler which prints 42 // more information about the terminating exception (if any) on 43 // stderr. 44 void __verbose_terminate_handler() 45 { 46 static bool terminating; 47 if (terminating) 48 { 49 fputs("terminate called recursively\n", stderr); 50 abort (); 51 } 52 terminating = true; 53 54 // Make sure there was an exception; terminate is also called for an 55 // attempt to rethrow when there is no suitable exception. 56 type_info *t = __cxa_current_exception_type(); 57 if (t) 58 { 59 // Note that "name" is the mangled name. 60 char const *name = t->name(); 61 { 62 int status = -1; 63 char *dem = 0; 64 65 dem = __cxa_demangle(name, 0, 0, &status); 66 67 fputs("terminate called after throwing an instance of '", stderr); 68 if (status == 0) 69 fputs(dem, stderr); 70 else 71 fputs(name, stderr); 72 fputs("'\n", stderr); 73 74 if (status == 0) 75 free(dem); 76 } 77 78 // If the exception is derived from std::exception, we can 79 // give more information. 80 __try { __throw_exception_again; } 81#if __cpp_exceptions 82 __catch(const exception& exc) 83 { 84 char const *w = exc.what(); 85 fputs(" what(): ", stderr); 86 fputs(w, stderr); 87 fputs("\n", stderr); 88 } 89#endif 90 __catch(...) { } 91 } 92 else 93 fputs("terminate called without an active exception\n", stderr); 94 95 abort(); 96 } 97 98_GLIBCXX_END_NAMESPACE_VERSION 99} // namespace 100 101#endif 102