Update copyright years.

[thirdparty/gcc.git] / libstdc++-v3 / libsupc++ / eh_exception.cc

diff --git a/libstdc++-v3/libsupc++/eh_exception.cc b/libstdc++-v3/libsupc++/eh_exception.cc
index 3c1a7a44ccb0ce1e52e47bb3e93071183c6a3d8f..e86a5a08bbb4ed64bd2e90d5305d39f1e1202fd7 100644 (file)
--- a/libstdc++-v3/libsupc++/eh_exception.cc
+++ b/libstdc++-v3/libsupc++/eh_exception.cc
@@ -1,44 +1,86 @@
 // -*- C++ -*- std::exception implementation.
-// Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 
-// Free Software Foundation
+// Copyright (C) 1994-2023 Free Software Foundation, Inc.
 //
-// This file is part of GNU CC.
+// This file is part of GCC.
 //
-// GNU CC is free software; you can redistribute it and/or modify
+// 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 2, or (at your option)
+// the Free Software Foundation; either version 3, or (at your option)
 // any later version.
 //
-// GNU CC is distributed in the hope that it will be useful,
+// 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.
 //
-// You should have received a copy of the GNU General Public License
-// along with GNU CC; see the file COPYING.  If not, write to
-// the Free Software Foundation, 59 Temple Place - Suite 330,
-// Boston, MA 02111-1307, USA. 
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction.  Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License.  This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+// 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 "unwind-cxx.h"
+#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
+{ }
 
-std::exception::~exception() throw() { }
+abi::__forced_unwind::~__forced_unwind() throw() { }
 
-std::bad_exception::~bad_exception() throw() { }
+abi::__foreign_exception::~__foreign_exception() throw() { }
 
 const char* 
-std::exception::what() const throw()
+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)
 {
-  return typeid (*this).name ();
+  // 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();
+}
+
 }