jdk8-mips64-public/hotspot: src/share/vm/utilities/preserveException.cpp@c6211b707068

8055007: NMT2: emptyStack missing in minimal build
Summary: Refactored emptyStack to a static member of NativeCallStack, which is accessible in minimal build.
Reviewed-by: coleenp, dholmes

     1 /*

     2  * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "runtime/handles.inline.hpp"

    27 #include "utilities/preserveException.hpp"

    29 // TODO: These three classes should be refactored

    31 PreserveExceptionMark::PreserveExceptionMark(Thread*& thread) {

    32   thread     = Thread::current();

    33   _thread    = thread;

    34   _preserved_exception_oop = Handle(thread, _thread->pending_exception());

    35   _preserved_exception_line = _thread->exception_line();

    36   _preserved_exception_file = _thread->exception_file();

    37   _thread->clear_pending_exception(); // Needed to avoid infinite recursion

    38 }

    41 PreserveExceptionMark::~PreserveExceptionMark() {

    42   if (_thread->has_pending_exception()) {

    43     oop exception = _thread->pending_exception();

    44     _thread->clear_pending_exception(); // Needed to avoid infinite recursion

    45     exception->print();

    46     fatal("PreserveExceptionMark destructor expects no pending exceptions");

    47   }

    48   if (_preserved_exception_oop() != NULL) {

    49     _thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);

    50   }

    51 }

    54 // This code is cloned from PreserveExceptionMark, except that:

    55 //   returned pending exceptions do not cause a crash.

    56 //   thread is passed in, not set (not a reference parameter)

    57 //   and bug 6431341 has been addressed.

    59 CautiouslyPreserveExceptionMark::CautiouslyPreserveExceptionMark(Thread* thread) {

    60   _thread    = thread;

    61   _preserved_exception_oop = Handle(thread, _thread->pending_exception());

    62   _preserved_exception_line = _thread->exception_line();

    63   _preserved_exception_file = _thread->exception_file();

    64   _thread->clear_pending_exception(); // Pending exceptions are checked in the destructor

    65 }

    68 CautiouslyPreserveExceptionMark::~CautiouslyPreserveExceptionMark() {

    69   assert(!_thread->has_pending_exception(), "unexpected exception generated");

    70   if (_thread->has_pending_exception()) {

    71     _thread->clear_pending_exception();

    72   }

    73   if (_preserved_exception_oop() != NULL) {

    74     _thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);

    75   }

    76 }

    79 void WeakPreserveExceptionMark::preserve() {

    80   _preserved_exception_oop = Handle(_thread, _thread->pending_exception());

    81   _preserved_exception_line = _thread->exception_line();

    82   _preserved_exception_file = _thread->exception_file();

    83   _thread->clear_pending_exception();

    84 }

    86 void WeakPreserveExceptionMark::restore() {

    87   if (!_thread->has_pending_exception()) {

    88     _thread->set_pending_exception(_preserved_exception_oop(), _preserved_exception_file, _preserved_exception_line);

    89   }

    90 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/utilities/preserveException.cpp@c6211b707068

src/share/vm/utilities/preserveException.cpp