1 /*
   2  * Copyright (c) 2011, 2012, 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 package sun.jvm.hotspot.ci;
  26 
  27 import java.io.PrintStream;
  28 import java.util.*;
  29 import sun.jvm.hotspot.debugger.*;
  30 import sun.jvm.hotspot.runtime.*;
  31 import sun.jvm.hotspot.oops.*;
  32 import sun.jvm.hotspot.opto.*;
  33 import sun.jvm.hotspot.compiler.CompileTask;
  34 import sun.jvm.hotspot.prims.JvmtiExport;
  35 import sun.jvm.hotspot.types.*;
  36 import sun.jvm.hotspot.utilities.GrowableArray;
  37 
  38 public class ciEnv extends VMObject {
  39   static {
  40     VM.registerVMInitializedObserver(new Observer() {
  41         public void update(Observable o, Object data) {
  42           initialize(VM.getVM().getTypeDataBase());
  43         }
  44       });
  45   }
  46 
  47   private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {
  48     Type type      = db.lookupType("ciEnv");
  49     dependenciesField = type.getAddressField("_dependencies");
  50     factoryField = type.getAddressField("_factory");
  51     compilerDataField = type.getAddressField("_compiler_data");
  52     taskField = type.getAddressField("_task");
  53     systemDictionaryModificationCounterField = new CIntField(type.getCIntegerField("_system_dictionary_modification_counter"), 0);
  54   }
  55 
  56   private static AddressField dependenciesField;
  57   private static AddressField factoryField;
  58   private static AddressField compilerDataField;
  59   private static AddressField taskField;
  60   private static CIntField systemDictionaryModificationCounterField;
  61 
  62   public ciEnv(Address addr) {
  63     super(addr);
  64   }
  65 
  66   public Compile compilerData() {
  67     return new Compile(compilerDataField.getValue(this.getAddress()));
  68   }
  69 
  70   public ciObjectFactory factory() {
  71     return new ciObjectFactory(factoryField.getValue(this.getAddress()));
  72   }
  73 
  74   public CompileTask task() {
  75     return new CompileTask(taskField.getValue(this.getAddress()));
  76   }
  77 
  78   public void dumpReplayData(PrintStream out) {
  79     out.println("JvmtiExport can_access_local_variables " +
  80                 (JvmtiExport.canAccessLocalVariables() ? '1' : '0'));
  81     out.println("JvmtiExport can_hotswap_or_post_breakpoint " +
  82                 (JvmtiExport.canHotswapOrPostBreakpoint() ? '1' : '0'));
  83     out.println("JvmtiExport can_post_on_exceptions " +
  84                 (JvmtiExport.canPostOnExceptions() ? '1' : '0'));
  85 
  86     GrowableArray<ciMetadata> objects = factory().objects();
  87     out.println("# " + objects.length() + " ciObject found");
  88     for (int i = 0; i < objects.length(); i++) {
  89       ciMetadata o = objects.at(i);
  90       out.println("# ciMetadata" + i + " @ " + o);
  91       o.dumpReplayData(out);
  92     }
  93     CompileTask task = task();
  94     Method method = task.method();
  95     int entryBci = task.osrBci();
  96     int compLevel = task.compLevel();
  97     Klass holder = method.getMethodHolder();
  98     out.print("compile " + holder.getName().asString() + " " +
  99               OopUtilities.escapeString(method.getName().asString()) + " " +
 100               method.getSignature().asString() + " " +
 101               entryBci + " " + compLevel);
 102     Compile compiler = compilerData();
 103     if (compiler != null) {
 104       // Dump inlining data.
 105       compiler.dumpInlineData(out);
 106     }
 107     out.println();
 108   }
 109 }