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52a11cbf | 1 | // -*- C++ -*- std::exception implementation. |
85ec4feb | 2 | // Copyright (C) 1994-2018 Free Software Foundation, Inc. |
52a11cbf | 3 | // |
cbecceb9 | 4 | // This file is part of GCC. |
52a11cbf | 5 | // |
cbecceb9 | 6 | // GCC is free software; you can redistribute it and/or modify |
52a11cbf | 7 | // it under the terms of the GNU General Public License as published by |
748086b7 | 8 | // the Free Software Foundation; either version 3, or (at your option) |
52a11cbf RH |
9 | // any later version. |
10 | // | |
cbecceb9 | 11 | // GCC is distributed in the hope that it will be useful, |
52a11cbf RH |
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 | // | |
748086b7 JJ |
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/>. | |
52a11cbf | 24 | |
52a11cbf RH |
25 | #include "typeinfo" |
26 | #include "exception" | |
d05f74f1 | 27 | #include <cxxabi.h> |
52a11cbf | 28 | |
a04d5fc9 | 29 | std::exception::~exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT { } |
52a11cbf | 30 | |
a04d5fc9 TR |
31 | std::bad_exception::~bad_exception() _GLIBCXX_TXN_SAFE_DYN |
32 | _GLIBCXX_USE_NOEXCEPT | |
33 | { } | |
d66ae36a | 34 | |
d05f74f1 JM |
35 | abi::__forced_unwind::~__forced_unwind() throw() { } |
36 | ||
37 | abi::__foreign_exception::~__foreign_exception() throw() { } | |
38 | ||
52a11cbf | 39 | const char* |
a04d5fc9 | 40 | std::exception::what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT |
52a11cbf | 41 | { |
c3f0f556 PC |
42 | // NB: Another elegant option would be returning typeid(*this).name() |
43 | // and not overriding what() in bad_exception, bad_alloc, etc. In | |
44 | // that case, however, mangled names would be returned, PR 14493. | |
45 | return "std::exception"; | |
46 | } | |
47 | ||
48 | const char* | |
a04d5fc9 | 49 | std::bad_exception::what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT |
c3f0f556 PC |
50 | { |
51 | return "std::bad_exception"; | |
52a11cbf | 52 | } |
a04d5fc9 TR |
53 | |
54 | // Transactional clones for the destructors and what(). | |
55 | // what() is effectively transaction_pure, but we do not want to annotate it | |
56 | // as such; thus, we call exactly the respective nontransactional function. | |
57 | extern "C" { | |
58 | ||
59 | void | |
60 | _ZGTtNKSt9exceptionD1Ev(const std::exception*) | |
61 | { } | |
62 | ||
63 | const char* | |
64 | _ZGTtNKSt9exception4whatEv(const std::exception* that) | |
65 | { | |
66 | // We really want the non-virtual call here. We already executed the | |
67 | // indirect call representing the virtual call, and the TM runtime or the | |
68 | // compiler resolved it to this transactional clone. In the clone, we want | |
69 | // to do the same as for the nontransactional original, so we just call it. | |
70 | return that->std::exception::what(); | |
71 | } | |
72 | ||
73 | void | |
74 | _ZGTtNKSt13bad_exceptionD1Ev( | |
75 | const std::bad_exception*) | |
76 | { } | |
77 | ||
78 | const char* | |
79 | _ZGTtNKSt13bad_exception4whatEv( | |
80 | const std::bad_exception* that) | |
81 | { | |
82 | // Also see _ZGTtNKSt9exception4whatEv. | |
83 | return that->std::bad_exception::what(); | |
84 | } | |
85 | ||
86 | } |