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+/*
+ * Copyright (C) 2008 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 Tracing_h
+#define Tracing_h
+
+#if HAVE(DTRACE)
+#include "TracingDtrace.h"
+#else
+
+#define JAVASCRIPTCORE_GC_BEGIN()
+#define JAVASCRIPTCORE_GC_BEGIN_ENABLED() 0
+
+#define JAVASCRIPTCORE_GC_END(arg0, arg1)
+#define JAVASCRIPTCORE_GC_END_ENABLED() 0
+
+#define JAVASCRIPTCORE_GC_MARKED()
+#define JAVASCRIPTCORE_GC_MARKED_ENABLED() 0
+
+#define JAVASCRIPTCORE_PROFILE_WILL_EXECUTE(arg0, arg1, arg2, arg3)
+#define JAVASCRIPTCORE_PROFILE_WILL_EXECUTE_ENABLED() 0
+
+#define JAVASCRIPTCORE_PROFILE_DID_EXECUTE(arg0, arg1, arg2, arg3)
+#define JAVASCRIPTCORE_PROFILE_DID_EXECUTE_ENABLED() 0
+
+#endif
+
+#endif // Tracing_h