# vterminate.cc

    00001 // Verbose terminate_handler -*- C++ -*-
    00002
    00003 // Copyright (C) 2001, 2002 Free Software Foundation
    00004 //
    00005 // This file is part of GNU CC.
    00006 //
    00007 // GNU CC is free software; you can redistribute it and/or modify
    00008 // it under the terms of the GNU General Public License as published by
    00009 // the Free Software Foundation; either version 2, or (at your option)
    00010 // any later version.
    00011 //
    00012 // GNU CC is distributed in the hope that it will be useful,
    00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015 // GNU General Public License for more details.
    00016 //
    00017 // You should have received a copy of the GNU General Public License
    00018 // along with GNU CC; see the file COPYING.  If not, write to
    00019 // the Free Software Foundation, 59 Temple Place - Suite 330,
    00020 // Boston, MA 02111-1307, USA.
    00021
    00022 // As a special exception, you may use this file as part of a free software
    00023 // library without restriction.  Specifically, if other files instantiate
    00024 // templates or use macros or inline functions from this file, or you compile
    00025 // this file and link it with other files to produce an executable, this
    00026 // file does not by itself cause the resulting executable to be covered by
    00027 // the GNU General Public License.  This exception does not however
    00028 // invalidate any other reasons why the executable file might be covered by
    00029 // the GNU General Public License.
    00030
    00031 #include <cstdlib>
    00032 #include <cstdio>
    00033 #include <exception>
    00034 #include <exception_defines.h>
    00035 #include <cxxabi.h>
    00036
    00037 using namespace std;
    00038 using namespace abi;
    00039
    00040 namespace __gnu_cxx
    00041 {
    00042   /* A replacement for the standard terminate_handler which prints
    00043    more information about the terminating exception (if any) on
    00044    stderr.  */
    00045   void __verbose_terminate_handler()
    00046   {
    00047     // Make sure there was an exception; terminate is also called for an
    00048     // attempt to rethrow when there is no suitable exception.
    00049     type_info *t = __cxa_current_exception_type();
    00050     if (t)
    00051       {
    00052     char const *name = t->name();
    00053     // Note that "name" is the mangled name.
    00054
    00055     {
    00056       int status = -1;
    00057       char *dem = 0;
    00058
    00059       // Disabled until __cxa_demangle gets the runtime GPL exception.
    00060       dem = __cxa_demangle(name, 0, 0, &status);
    00061
    00062       printf("terminate called after throwing a `%s'\n",
    00063          status == 0 ? dem : name);
    00064
    00065       if (status == 0)
    00066         free(dem);
    00067     }
    00068
    00069     // If the exception is derived from std::exception, we can give more
    00070     // information.
    00071     try { __throw_exception_again; }
    00072 #ifdef __EXCEPTIONS
    00073     catch (exception &exc)
    00074       { fprintf(stderr, "  what(): %s\n", exc.what()); }
    00075 #endif
    00076     catch (...) { }
    00077       }
    00078     else
    00079       fprintf(stderr, "terminate called without an active exception\n");
    00080
    00081     abort();
    00082   }
    00083 } // namespace __gnu_cxx