--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/jfr/utilities/jfrLogTagSets.hpp	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_JFR_UTILITIES_JFRLOGTAGSETS_HPP
+#define SHARE_VM_JFR_UTILITIES_JFRLOGTAGSETS_HPP
+
+#include "logging/logTag.hpp"
+
+/*
+ * This file declares the Unified Logging (UL) tag sets for JFR.
+ *
+ * The JFR_LOG_TAG_SET_LIST macro will generate an enum
+ * (zero-based ordinals) for these log tag sets.
+ * Log tag set order (enum ordinals) is important
+ * because we need to mirror this order in Java.
+ *
+ * Adding a new log tag set:
+ *
+ * 1. Ensure the log tag primitive which you attempt to use in your new log tag set is defined to UL.
+ *    UL log tags are defined in logging/logTag.hpp.
+ * 2. Append the new log tag set to the JFR_LOG_TAG_SET_LIST macro in this file.
+ * 3. Make the corresponding change in Java by updating jdk.jfr.internal.LogTag.java
+ *    to add another enum instance with a corresponding tag id ordinal.
+ *
+ */
+
+#define JFR_LOG_TAG_SET_LIST \
+  JFR_LOG_TAG(jfr) \
+  JFR_LOG_TAG(jfr, system) \
+  JFR_LOG_TAG(jfr, system, event) \
+  JFR_LOG_TAG(jfr, system, setting) \
+  JFR_LOG_TAG(jfr, system, bytecode) \
+  JFR_LOG_TAG(jfr, system, parser) \
+  JFR_LOG_TAG(jfr, system, metadata) \
+  JFR_LOG_TAG(jfr, metadata) \
+  JFR_LOG_TAG(jfr, event) \
+  JFR_LOG_TAG(jfr, setting)
+  /* NEW TAGS, DONT FORGET TO UPDATE JAVA SIDE */
+
+#endif // SHARE_VM_JFR_UTILITIES_JFRLOGTAGSETS_HPP