view agent/src/share/classes/sun/jvm/hotspot/opto/InlineTree.java @ 17716:cdb71841f4bc

6498581: ThreadInterruptTest3 produces wrong output on Windows Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set. Reviewed-by: acorn, kvn Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author minqi
date Wed, 26 Feb 2014 15:20:41 -0800
parents 849eb7bfceac
children 4ca6dc0799b6
line wrap: on
line source

/*
 * Copyright (c) 2011, 2012, 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.
 *
 */

package sun.jvm.hotspot.opto;

import java.util.*;
import java.io.PrintStream;
import sun.jvm.hotspot.ci.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.utilities.GrowableArray;
import sun.jvm.hotspot.types.*;

public class InlineTree extends VMObject {
  static {
    VM.registerVMInitializedObserver(new Observer() {
        public void update(Observable o, Object data) {
          initialize(VM.getVM().getTypeDataBase());
        }
      });
  }

  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
    Type type      = db.lookupType("InlineTree");
    callerJvmsField = type.getAddressField("_caller_jvms");
    methodField = type.getAddressField("_method");
    callerTreeField = type.getAddressField("_caller_tree");
    subtreesField = type.getAddressField("_subtrees");
  }

  private static AddressField callerJvmsField;
  private static AddressField methodField;
  private static AddressField callerTreeField;
  private static AddressField subtreesField;

  private static StaticBaseConstructor inlineTreeConstructor = new StaticBaseConstructor<InlineTree>(InlineTree.class);

  public InlineTree(Address addr) {
    super(addr);
  }

  public InlineTree callerTree() {
    Address addr = callerTreeField.getValue(getAddress());
    if (addr == null) return null;

    return new InlineTree(addr);
  }

  public ciMethod method() {
    return (ciMethod) ciObjectFactory.getMetadata(methodField.getValue(getAddress()));
  }

  public JVMState callerJvms() {
    return JVMState.create(callerJvmsField.getValue(getAddress()));
  }

  public int callerBci() {
    JVMState jvms = callerJvms();
    return (jvms != null) ? jvms.bci() : -1;
  }

  public GrowableArray<InlineTree> subtrees() {
    Address addr = getAddress().addOffsetTo(subtreesField.getOffset());

    return GrowableArray.create(addr, inlineTreeConstructor);
  }

  public int inlineLevel() {
    JVMState jvms = callerJvms();
    return (jvms != null) ? jvms.depth() : 0;
  }

  public void printImpl(PrintStream st, int indent) {
    for (int i = 0; i < indent; i++) st.print(" ");
    st.printf(" @ %d ", callerBci());
    method().printShortName(st);
    st.println();

    GrowableArray<InlineTree> subt = subtrees();
    for (int i = 0 ; i < subt.length(); i++) {
      subt.at(i).printImpl(st, indent + 2);
    }
  }
  public void print(PrintStream st) {
    printImpl(st, 2);
  }

  // Count number of nodes in this subtree
  public int count() {
    int result = 1;
    GrowableArray<InlineTree> subt = subtrees();
    for (int i = 0 ; i < subt.length(); i++) {
      result += subt.at(i).count();
    }
    return result;
  }

  public void dumpReplayData(PrintStream out) {
    out.printf(" %d %d ", inlineLevel(), callerBci());
    Method method = (Method)method().getMetadata();
    Klass holder = method.getMethodHolder();
    out.print(holder.getName().asString() + " " +
              OopUtilities.escapeString(method.getName().asString()) + " " +
              method.getSignature().asString());

    GrowableArray<InlineTree> subt = subtrees();
    for (int i = 0 ; i < subt.length(); i++) {
      subt.at(i).dumpReplayData(out);
    }
  }
}