| // -*- C++ -*- std::exception implementation. |
| // Copyright (C) 1994-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of GCC. |
| // |
| // GCC is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // GCC is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| #include "typeinfo" |
| #include "exception" |
| #include <cxxabi.h> |
| |
| std::exception::~exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT { } |
| |
| std::bad_exception::~bad_exception() _GLIBCXX_TXN_SAFE_DYN |
| _GLIBCXX_USE_NOEXCEPT |
| { } |
| |
| abi::__forced_unwind::~__forced_unwind() throw() { } |
| |
| abi::__foreign_exception::~__foreign_exception() throw() { } |
| |
| const char* |
| std::exception::what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT |
| { |
| // NB: Another elegant option would be returning typeid(*this).name() |
| // and not overriding what() in bad_exception, bad_alloc, etc. In |
| // that case, however, mangled names would be returned, PR 14493. |
| return "std::exception"; |
| } |
| |
| const char* |
| std::bad_exception::what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT |
| { |
| return "std::bad_exception"; |
| } |
| |
| // Transactional clones for the destructors and what(). |
| // what() is effectively transaction_pure, but we do not want to annotate it |
| // as such; thus, we call exactly the respective nontransactional function. |
| extern "C" { |
| |
| void |
| _ZGTtNKSt9exceptionD1Ev(const std::exception*) |
| { } |
| |
| const char* |
| _ZGTtNKSt9exception4whatEv(const std::exception* that) |
| { |
| // We really want the non-virtual call here. We already executed the |
| // indirect call representing the virtual call, and the TM runtime or the |
| // compiler resolved it to this transactional clone. In the clone, we want |
| // to do the same as for the nontransactional original, so we just call it. |
| return that->std::exception::what(); |
| } |
| |
| void |
| _ZGTtNKSt13bad_exceptionD1Ev( |
| const std::bad_exception*) |
| { } |
| |
| const char* |
| _ZGTtNKSt13bad_exception4whatEv( |
| const std::bad_exception* that) |
| { |
| // Also see _ZGTtNKSt9exception4whatEv. |
| return that->std::bad_exception::what(); |
| } |
| |
| } |