--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/win32_ia64/Win32IA64JavaThreadPDAccess.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2003 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.runtime.win32_ia64;
+
+import java.io.*;
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.ia64.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.runtime.ia64.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class Win32IA64JavaThreadPDAccess implements JavaThreadPDAccess {
+  // private static AddressField  lastJavaPCField;
+  // private static AddressField  lastJavaFPField;
+  private static AddressField  lastJavaIFrameField;
+  private static AddressField  osThreadField;
+
+  // Field from OSThread
+  private static CIntegerField osThreadPThreadIDField;
+
+  // This is currently unneeded but is being kept in case we change
+  // the currentFrameGuess algorithm
+  private static final long GUESS_SCAN_RANGE = 128 * 1024;
+
+  static {
+    VM.registerVMInitializedObserver(new Observer() {
+        public void update(Observable o, Object data) {
+          initialize(VM.getVM().getTypeDataBase());
+        }
+      });
+  }
+
+  private static synchronized void initialize(TypeDataBase db) {
+    Type type = db.lookupType("JavaThread");
+
+    lastJavaIFrameField     = type.getAddressField("_last_Java_iframe");
+    osThreadField           = type.getAddressField("_osthread");
+
+    type = db.lookupType("OSThread");
+    osThreadPThreadIDField   = type.getCIntegerField("_pthread_id");
+  }
+
+  public    Address getLastJavaIFrame(Address addr) {
+    return lastJavaIFrameField.getValue(addr);
+  }
+
+
+  public    Address getBaseOfStackPointer(Address addr) {
+    return null;
+  }
+
+  public Address getLastJavaFP(Address addr) {
+    return null; // Not in 1.4.1
+  }
+
+  public    Address getLastJavaPC(Address addr) {
+    return null; // Not in 1.4.1
+  }
+
+  public boolean isInterpretedFrame() {
+
+    // In 1.4.1 there are only interpreted frames
+    // and there is no pc
+    return true;
+  }
+
+  public    Frame getLastFramePD(JavaThread thread, Address addr) {
+    // The thread is the JavaThread that contains "this"
+    // so we don't need any new accessor at the JavaThread level
+    Address iframe = getLastJavaIFrame(addr);
+    Address pc = thread.getLastJavaPC();
+    if (iframe == null) {
+      return null; // no information
+    }
+    return new IA64Frame(thread.getLastJavaSP(), iframe, pc);
+  }
+
+  public    RegisterMap newRegisterMap(JavaThread thread, boolean updateMap) {
+    return new IA64RegisterMap(thread, updateMap);
+  }
+
+  public    Frame getCurrentFrameGuess(JavaThread thread, Address addr) {
+    return getLastFramePD(thread, addr);
+  }
+
+  public    void printThreadIDOn(Address addr, PrintStream tty) {
+    tty.print(getThreadProxy(addr));
+  }
+
+  public    void printInfoOn(Address threadAddr, PrintStream tty) {
+    tty.print("Thread id: ");
+    printThreadIDOn(threadAddr, tty);
+    tty.println("\nLastJavaIFrame: " + getLastJavaIFrame(threadAddr));
+  }
+
+  public    Address getLastSP(Address addr) {
+    ThreadProxy t = getThreadProxy(addr);
+    IA64ThreadContext context = (IA64ThreadContext) t.getContext();
+    return context.getRegisterAsAddress(IA64ThreadContext.SP);
+  }
+
+  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 _pthread_id from the OSThread
+    Address pthreadIdAddr = osThreadAddr.addOffsetTo(osThreadPThreadIDField.getOffset());
+
+    JVMDebugger debugger = VM.getVM().getDebugger();
+    return debugger.getThreadForIdentifierAddress(pthreadIdAddr);
+  }
+}