src/hotspot/share/oops/markWord.hpp

rev 57532 : [mq]: 8234173.1

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2019, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2020, 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.
*** 81,92 ****
  //  - the two lock bits are used to describe three states: locked/unlocked and monitor.
  //
  //    [ptr             | 00]  locked             ptr points to real header on stack
  //    [header      | 0 | 01]  unlocked           regular object header
  //    [ptr             | 10]  monitor            inflated lock (header is wapped out)
! //    [ptr             | 11]  marked             used by markSweep to mark an object
! //                                               not valid at any other time
  //
  //    We assume that stack/thread pointers have the lowest two bits cleared.
  
  class BasicLock;
  class ObjectMonitor;
--- 81,91 ----
  //  - the two lock bits are used to describe three states: locked/unlocked and monitor.
  //
  //    [ptr             | 00]  locked             ptr points to real header on stack
  //    [header      | 0 | 01]  unlocked           regular object header
  //    [ptr             | 10]  monitor            inflated lock (header is wapped out)
! //    [ptr             | 11]  marked             used to mark an object
  //
  //    We assume that stack/thread pointers have the lowest two bits cleared.
  
  class BasicLock;
  class ObjectMonitor;