JDK 11 jdk.hotspot.agent.jmod - Hotspot Agent Module

JDK 11 jdk.hotspot.agent.jmod is the JMOD file for JDK 11 Hotspot Agent module.

JDK 11 Hotspot Agent module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.hotspot.agent.jmod.

JDK 11 Hotspot Agent module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Hotspot Agent module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.hotspot.agent.

You can click and view the content of each source code file in the list below.

✍: FYIcenter

sun/jvm/hotspot/code/PCDesc.java

/*
 * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package sun.jvm.hotspot.code;

import java.io.*;
import java.util.*;
import sun.jvm.hotspot.debugger.*;
import sun.jvm.hotspot.runtime.*;
import sun.jvm.hotspot.types.*;

/** PcDescs map a physical PC (given as offset from start of nmethod)
    to the corresponding source scope and byte code index. */

public class PCDesc extends VMObject {
  private static CIntegerField pcOffsetField;
  private static CIntegerField scopeDecodeOffsetField;
  private static CIntegerField objDecodeOffsetField;
  private static CIntegerField pcFlagsField;
  private static int reexecuteMask;
  private static int isMethodHandleInvokeMask;
  private static int returnOopMask;

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

  private static void initialize(TypeDataBase db) {
    Type type = db.lookupType("PcDesc");

    pcOffsetField          = type.getCIntegerField("_pc_offset");
    scopeDecodeOffsetField = type.getCIntegerField("_scope_decode_offset");
    objDecodeOffsetField   = type.getCIntegerField("_obj_decode_offset");
    pcFlagsField           = type.getCIntegerField("_flags");

    reexecuteMask            = db.lookupIntConstant("PcDesc::PCDESC_reexecute");
    isMethodHandleInvokeMask = db.lookupIntConstant("PcDesc::PCDESC_is_method_handle_invoke");
    returnOopMask            = db.lookupIntConstant("PcDesc::PCDESC_return_oop");
  }

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

  // FIXME: add additional constructor probably needed for ScopeDesc::sender()

  public int getPCOffset() {
    return (int) pcOffsetField.getValue(addr);
  }

  public int getScopeDecodeOffset() {
    return ((int) scopeDecodeOffsetField.getValue(addr));
  }

  public int getObjDecodeOffset() {
    return ((int) objDecodeOffsetField.getValue(addr));
  }

  public Address getRealPC(NMethod code) {
    return code.codeBegin().addOffsetTo(getPCOffset());
  }


  public boolean getReexecute() {
    int flags = (int)pcFlagsField.getValue(addr);
    return (flags & reexecuteMask) != 0;
  }

  public boolean isMethodHandleInvoke() {
    int flags = (int)pcFlagsField.getValue(addr);
    return (flags & isMethodHandleInvokeMask) != 0;
  }

  public void print(NMethod code) {
    printOn(System.out, code);
  }

  public void printOn(PrintStream tty, NMethod code) {
    tty.println("PCDesc(" + getRealPC(code) + "):");
    for (ScopeDesc sd = code.getScopeDescAt(getRealPC(code));
         sd != null;
         sd = sd.sender()) {
      tty.print(" ");
      sd.getMethod().printValueOn(tty);
      tty.print("  @" + sd.getBCI());
      tty.print("  reexecute=" + sd.getReexecute());
      tty.println();
    }
  }
}

sun/jvm/hotspot/code/PCDesc.java

 

Or download all of them as a single archive file:

File name: jdk.hotspot.agent-11.0.1-src.zip
File size: 1243786 bytes
Release date: 2018-11-04
Download 

 

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