1 // Verbose terminate_handler -*- C++ -*- 2 3 // Copyright (C) 2001, 2002, 2004, 2005, 2009 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 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 <exception_defines.h> 31 #include <cxxabi.h> 32 # include <cstdio> 33 34 using namespace std; 35 using namespace abi; 36 37 _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx) 38 39 // A replacement for the standard terminate_handler which prints 40 // more information about the terminating exception (if any) on 41 // stderr. 42 void __verbose_terminate_handler() 43 { 44 static bool terminating; 45 if (terminating) 46 { 47 fputs("terminate called recursively\n", stderr); 48 abort (); 49 } 50 terminating = true; 51 52 // Make sure there was an exception; terminate is also called for an 53 // attempt to rethrow when there is no suitable exception. 54 type_info *t = __cxa_current_exception_type(); 55 if (t) 56 { 57 // Note that "name" is the mangled name. 58 char const *name = t->name(); 59 { 60 int status = -1; 61 char *dem = 0; 62 63 dem = __cxa_demangle(name, 0, 0, &status); 64 65 fputs("terminate called after throwing an instance of '", stderr); 66 if (status == 0) 67 fputs(dem, stderr); 68 else 69 fputs(name, stderr); 70 fputs("'\n", stderr); 71 72 if (status == 0) 73 free(dem); 74 } 75 76 // If the exception is derived from std::exception, we can 77 // give more information. 78 __try { __throw_exception_again; } 79 #ifdef __EXCEPTIONS 80 __catch(const exception& exc) 81 { 82 char const *w = exc.what(); 83 fputs(" what(): ", stderr); 84 fputs(w, stderr); 85 fputs("\n", stderr); 86 } 87 #endif 88 __catch(...) { } 89 } 90 else 91 fputs("terminate called without an active exception\n", stderr); 92 93 abort(); 94 } 95 96 _GLIBCXX_END_NAMESPACE 97 98 #endif 99