1 /*
   2 * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
   3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4 *
   5 * This code is free software; you can redistribute it and/or modify it
   6 * under the terms of the GNU General Public License version 2 only, as
   7 * published by the Free Software Foundation.
   8 *
   9 * This code is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 * version 2 for more details (a copy is included in the LICENSE file that
  13 * accompanied this code).
  14 *
  15 * You should have received a copy of the GNU General Public License version
  16 * 2 along with this work; if not, write to the Free Software Foundation,
  17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18 *
  19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20 * or visit www.oracle.com if you need additional information or have any
  21 * questions.
  22 *
  23 */
  24 
  25 #ifndef SHARE_VM_JFR_SUPPORT_JFRKLASSEXTENSION_HPP
  26 #define SHARE_VM_JFR_SUPPORT_JFRKLASSEXTENSION_HPP
  27 
  28 #include "jfr/instrumentation/jfrEventClassTransformer.hpp"
  29 #include "jfr/support/jfrTraceIdExtension.hpp"
  30 
  31 #define DEFINE_KLASS_TRACE_ID_OFFSET \
  32   static ByteSize trace_id_offset() { return in_ByteSize(offset_of(InstanceKlass, _trace_id)); }
  33 
  34 #define KLASS_TRACE_ID_OFFSET InstanceKlass::trace_id_offset()
  35 
  36 #define JDK_JFR_EVENT_SUBKLASS 16
  37 #define JDK_JFR_EVENT_KLASS    32
  38 #define EVENT_HOST_KLASS       64
  39 #define IS_EVENT_KLASS(ptr) (((ptr)->trace_id() & (JDK_JFR_EVENT_KLASS | JDK_JFR_EVENT_SUBKLASS)) != 0)
  40 #define ON_KLASS_CREATION(k, p, t) if (IS_EVENT_KLASS(k)) JfrEventClassTransformer::on_klass_creation(k, p, t)
  41 
  42 #endif // SHARE_VM_JFR_SUPPORT_JFRKLASSEXTENSION_HPP