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1 | // Verbose terminate_handler -*- C++ -*- |
2 | ||
2ca08953 | 3 | // Copyright (C) 2001, 2002 Free Software Foundation |
74a3070f | 4 | // |
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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) | |
74a3070f | 9 | // any later version. |
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10 | |
11 | // This library is distributed in the hope that it will be useful, | |
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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. | |
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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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
19 | // USA. | |
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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 | ||
fb705416 | 30 | #include <bits/c++config.h> |
74a3070f | 31 | #include <cstdlib> |
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32 | #include <exception> |
33 | #include <exception_defines.h> | |
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34 | #include <cxxabi.h> |
35 | ||
3d7c150e | 36 | #ifdef _GLIBCXX_HAVE_UNISTD_H |
fb705416 | 37 | # include <unistd.h> |
9795acc6 | 38 | # define writestr(str) write(2, str, __builtin_strlen(str)) |
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39 | #else |
40 | # include <cstdio> | |
41 | # define writestr(str) std::fputs(str, stderr) | |
42 | #endif | |
43 | ||
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44 | using namespace std; |
45 | using namespace abi; | |
46 | ||
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47 | namespace __gnu_cxx |
48 | { | |
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49 | /* A replacement for the standard terminate_handler which prints |
50 | more information about the terminating exception (if any) on | |
51 | stderr. */ | |
52 | void __verbose_terminate_handler() | |
53 | { | |
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54 | static bool terminating; |
55 | ||
56 | if (terminating) | |
57 | { | |
58 | writestr ("terminate called recursively\n"); | |
59 | abort (); | |
60 | } | |
61 | ||
62 | terminating = true; | |
63 | ||
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64 | // Make sure there was an exception; terminate is also called for an |
65 | // attempt to rethrow when there is no suitable exception. | |
66 | type_info *t = __cxa_current_exception_type(); | |
67 | if (t) | |
74a3070f | 68 | { |
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69 | char const *name = t->name(); |
70 | // Note that "name" is the mangled name. | |
71 | ||
72 | { | |
73 | int status = -1; | |
74 | char *dem = 0; | |
75 | ||
2ca08953 | 76 | dem = __cxa_demangle(name, 0, 0, &status); |
74a3070f | 77 | |
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78 | writestr("terminate called after throwing an instance of '"); |
79 | if (status == 0) | |
80 | writestr(dem); | |
81 | else | |
82 | writestr(name); | |
83 | writestr("'\n"); | |
74a3070f | 84 | |
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85 | if (status == 0) |
86 | free(dem); | |
87 | } | |
74a3070f | 88 | |
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89 | // If the exception is derived from std::exception, we can give more |
90 | // information. | |
91 | try { __throw_exception_again; } | |
92 | #ifdef __EXCEPTIONS | |
93 | catch (exception &exc) | |
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94 | { |
95 | char const *w = exc.what(); | |
96 | writestr(" what(): "); | |
97 | writestr(w); | |
98 | writestr("\n"); | |
99 | } | |
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100 | #endif |
101 | catch (...) { } | |
102 | } | |
103 | else | |
fb705416 | 104 | writestr("terminate called without an active exception\n"); |
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105 | |
106 | abort(); | |
107 | } | |
74a3070f | 108 | } // namespace __gnu_cxx |