1 /*
   2  * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
  20  * CA 95054 USA or visit www.sun.com if you need additional information or
  21  * have any questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.opto;
  26 
  27 import java.util.*;
  28 import java.io.PrintStream;
  29 import sun.jvm.hotspot.debugger.*;
  30 import sun.jvm.hotspot.runtime.*;
  31 import sun.jvm.hotspot.oops.*;
  32 import sun.jvm.hotspot.types.*;
  33 import sun.jvm.hotspot.utilities.CStringUtilities;
  34 
  35 public class MachCallStaticJavaNode extends MachCallJavaNode {
  36   static {
  37     VM.registerVMInitializedObserver(new Observer() {
  38         public void update(Observable o, Object data) {
  39           initialize(VM.getVM().getTypeDataBase());
  40         }
  41       });
  42   }
  43 
  44   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
  45     Type type      = db.lookupType("MachCallStaticJavaNode");
  46     nameField    = type.getAddressField("_name");
  47   }
  48 
  49   private static AddressField nameField;
  50 
  51   public String name() {
  52     return CStringUtilities.getString(nameField.getValue(getAddress()));
  53   }
  54 
  55   public MachCallStaticJavaNode(Address addr) {
  56     super(addr);
  57   }
  58 
  59   public void dumpSpec(PrintStream st) {
  60     st.print("Static ");
  61     String n = name();
  62     if (n != null) {
  63       st.printf("wrapper for: %s", n);
  64       // dump_trap_args(st);
  65       st.print(" ");
  66     }
  67     super.dumpSpec(st);
  68   }
  69 }