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 39 using namespace std; 40 using 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