1 files changed, 82 insertions, 0 deletions
diff --git a/src/qml/qml/v4/qv4unwindhelper.cpp b/src/qml/qml/v4/qv4unwindhelper.cpp
new file mode 100644
index 0000000000..beb5132626
--- /dev/null
+++ b/src/qml/qml/v4/qv4unwindhelper.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <qv4unwindhelper_p.h>
+
+#include <wtf/Platform.h>
+
+#if CPU(X86_64) && (OS(LINUX) || OS(MAC_OS_X))
+#  define USE_DW2_HELPER
+#elif CPU(X86) && COMPILER(GCC)
+#  define USE_DW2_HELPER
+#elif CPU(ARM) && (OS(LINUX) || OS(QNX))
+# define USE_ARM_HELPER
+#elif OS(WINDOWS)
+    // SJLJ will unwind on Windows
+#  define USE_NULL_HELPER
+#elif OS(IOS)
+    // SJLJ will unwind on iOS
+#  define USE_NULL_HELPER
+#else
+#  warning "Unsupported/untested platform!"
+#  define USE_NULL_HELPER
+#endif
+
+#ifdef USE_DW2_HELPER
+#  include <qv4unwindhelper_p-dw2.h>
+#endif // USE_DW2_HELPER
+
+#ifdef USE_ARM_HELPER
+#  include <qv4unwindhelper_p-arm.h>
+#endif // USE_ARM_HELPER
+
+QT_BEGIN_NAMESPACE
+
+#ifdef USE_NULL_HELPER
+using namespace QV4;
+void UnwindHelper::prepareForUnwind(ExecutionContext *) {}
+void UnwindHelper::registerFunction(Function *function) {Q_UNUSED(function);}
+void UnwindHelper::registerFunctions(const QVector<Function *> &functions) {Q_UNUSED(functions);}
+void UnwindHelper::deregisterFunction(Function *function) {Q_UNUSED(function);}
+void UnwindHelper::deregisterFunctions(const QVector<Function *> &functions) {Q_UNUSED(functions);}
+#endif // USE_NULL_HELPER
+
+QT_END_NAMESPACE