001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.mmtk.plan.semispace.gctrace;
014
015import org.mmtk.plan.semispace.SSConstraints;
016
017import org.vmmagic.pragma.*;
018
019/**
020 * GCTrace constants.
021 */
022@Uninterruptible
023public class GCTraceConstraints extends SSConstraints {
024
025  @Override
026  public boolean needsObjectReferenceWriteBarrier() {
027    return true;
028  }
029
030  @Override
031  public boolean generateGCTrace() {
032    return true;
033  }
034}