JavaScriptCore-1097.3.tar.gz

[apple/javascriptcore.git] / llint / LLIntOffsetsExtractor.cpp

diff --git a/llint/LLIntOffsetsExtractor.cpp b/llint/LLIntOffsetsExtractor.cpp
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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. 
+ */
+
+#include "config.h"
+
+#include "CodeBlock.h"
+#include "Executable.h"
+#include "Heap.h"
+#include "Interpreter.h"
+#include "JITStubs.h"
+#include "JSArray.h"
+#include "JSCell.h"
+#include "JSFunction.h"
+#include "JSGlobalData.h"
+#include "JSGlobalObject.h"
+#include "JSObject.h"
+#include "JSPropertyNameIterator.h"
+#include "JSString.h"
+#include "JSTypeInfo.h"
+#include "JSVariableObject.h"
+#include "JumpTable.h"
+#include "LLIntOfflineAsmConfig.h"
+#include "MarkedSpace.h"
+#include "RegisterFile.h"
+#include "ScopeChain.h"
+#include "Structure.h"
+#include "StructureChain.h"
+#include "ValueProfile.h"
+#include <wtf/text/StringImpl.h>
+
+namespace JSC {
+
+#define OFFLINE_ASM_OFFSETOF(clazz, field) OBJECT_OFFSETOF(clazz, field)
+
+class LLIntOffsetsExtractor {
+public:
+    static const unsigned* dummy();
+};
+
+const unsigned* LLIntOffsetsExtractor::dummy()
+{
+#if ENABLE(JIT)
+// This is a file generated by offlineasm/generate_offsets_extractor.rb, and contains code
+// to create a table of offsets, sizes, and a header identifying what combination of
+// Platform.h macros we have set. We include it inside of a method on LLIntOffsetsExtractor
+// because the fields whose offsets we're extracting are mostly private. So we make their
+// classes friends with LLIntOffsetsExtractor, and include the header here, to get the C++
+// compiler to kindly step aside and yield to our best intentions.
+#include "LLIntDesiredOffsets.h"
+    return extractorTable;
+#else
+    return 0;
+#endif
+}
+
+} // namespace JSC
+
+int main(int, char**)
+{
+    // Out of an abundance of caution, make sure that LLIntOffsetsExtractor::dummy() is live,
+    // and the extractorTable is live, too.
+    printf("%p\n", JSC::LLIntOffsetsExtractor::dummy());
+    return 0;
+}
+
+