Imported WebKit commit 75bb2fc5882d2e1b3d5572c2961507996cbca5e3 (http://svn.webkit.org/repository/webkit/trunk@104681)

1 files changed, 56 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/jit/JITExceptions.h b/Source/JavaScriptCore/jit/JITExceptions.h
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+/*
+ * Copyright (C) 2012 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef JITExceptions_h
+#define JITExceptions_h
+
+#include "JSValue.h"
+#include "MacroAssemblerCodeRef.h"
+
+#if ENABLE(ASSEMBLER)
+
+namespace JSC {
+
+class ExecState;
+class JSGlobalData;
+
+// This header gives other parts of the system access to the JIT's prototocol
+// for the throwing and handling exceptions.
+
+struct ExceptionHandler {
+    void* catchRoutine;
+    ExecState* callFrame;
+};
+
+ExceptionHandler genericThrow(JSGlobalData*, ExecState*, JSValue exceptionValue, unsigned vPCIndex);
+
+ExceptionHandler jitThrow(JSGlobalData*, ExecState*, JSValue exceptionValue, ReturnAddressPtr faultLocation);
+
+} // namespace JSC
+
+#endif
+
+#endif // JITExceptions_h
+