Example #1
0
  /**
   * NOTE: this returns objects of type JavaThread, CompilerThread, JvmtiAgentThread, and
   * ServiceThread. The latter four are subclasses of the former. Most operations (fetching the top
   * frame, etc.) are only allowed to be performed on a "pure" JavaThread. For this reason, {@link
   * sun.jvm.hotspot.runtime.JavaThread#isJavaThread} has been changed from the definition in the VM
   * (which returns true for all of these thread types) to return true for JavaThreads and false for
   * the three subclasses. FIXME: should reconsider the inheritance hierarchy; see {@link
   * sun.jvm.hotspot.runtime.JavaThread#isJavaThread}.
   */
  public JavaThread first() {
    Address threadAddr = threadListField.getValue();
    if (threadAddr == null) {
      return null;
    }

    return createJavaThreadWrapper(threadAddr);
  }
Example #2
0
  public ThreadProxy getThreadProxy(Address addr) {
    // Addr is the address of the JavaThread.
    // Fetch the OSThread (for now and for simplicity, not making a
    // separate "OSThread" class in this package)
    Address osThreadAddr = osThreadField.getValue(addr);
    // Get the address of the _thread_id from the OSThread
    Address threadIdAddr = osThreadAddr.addOffsetTo(osThreadThreadIDField.getOffset());

    JVMDebugger debugger = VM.getVM().getDebugger();
    return debugger.getThreadForIdentifierAddress(threadIdAddr);
  }
  public JNIHandleBlock next() {
    Address handleAddr = nextField.getValue(addr);
    if (handleAddr == null) {
      return null;
    }

    /* the next handle block is valid only if the current block is full */
    if (top() < blockSizeInOops) {
      return null;
    }
    return new JNIHandleBlock(handleAddr);
  }
 public String getDescription() {
   return CStringUtilities.getString(descriptionField.getValue(addr));
 }
Example #5
0
 public Address getLastJavaFP(Address addr) {
   return lastJavaFPField.getValue(
       addr.addOffsetTo(sun.jvm.hotspot.runtime.JavaThread.getAnchorField().getOffset()));
 }
 /** Breakpoint support (see methods on methodOop for details) */
 public BreakpointInfo getBreakpoints() {
   Address addr = getHandle().getAddressAt(Oop.getHeaderSize() + breakpoints.getOffset());
   return (BreakpointInfo) VMObjectFactory.newObject(BreakpointInfo.class, addr);
 }
Example #7
0
 // get associated compiled native method, if available, else return null.
 public NMethod getNativeMethod() {
   Address addr = code.getValue(getHandle());
   return (NMethod) VMObjectFactory.newObject(NMethod.class, addr);
 }