--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/solaris_amd64/SolarisAMD64JavaThreadPDAccess.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2004 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.solaris_amd64;
+
+import java.io.*;
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.amd64.*;
+import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.runtime.amd64.*;
+import sun.jvm.hotspot.types.*;
+import sun.jvm.hotspot.utilities.*;
+
+public class SolarisAMD64JavaThreadPDAccess implements JavaThreadPDAccess {
+    private static AddressField lastJavaFPField;
+    private static AddressField osThreadField;
+    private static AddressField baseOfStackPointerField;
+
+    // Field from OSThread
+    private static CIntegerField osThreadThreadIDField;
+
+    // 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");
+        Type anchorType = db.lookupType("JavaFrameAnchor");
+
+        lastJavaFPField    = anchorType.getAddressField("_last_Java_fp");
+        osThreadField      = type.getAddressField("_osthread");
+
+        type = db.lookupType("OSThread");
+        osThreadThreadIDField   = type.getCIntegerField("_thread_id");
+    }
+
+    public    Address getLastJavaFP(Address addr) {
+        return lastJavaFPField.getValue(addr.addOffsetTo(sun.jvm.hotspot.runtime.JavaThread.getAnchorField().getOffset()));
+    }
+
+    public    Address getLastJavaPC(Address addr) {
+        return null;
+    }
+
+    public Address getBaseOfStackPointer(Address addr) {
+        return null;
+    }
+
+    public Frame getLastFramePD(JavaThread thread, Address addr) {
+        Address fp = thread.getLastJavaFP();
+        if (fp == null) {
+            return null; // no information
+        }
+        Address pc =  thread.getLastJavaPC();
+        if ( pc != null ) {
+            return new AMD64Frame(thread.getLastJavaSP(), fp, pc);
+        } else {
+            return new AMD64Frame(thread.getLastJavaSP(), fp);
+        }
+    }
+
+    public RegisterMap newRegisterMap(JavaThread thread, boolean updateMap) {
+        return new AMD64RegisterMap(thread, updateMap);
+    }
+
+    public Frame getCurrentFrameGuess(JavaThread thread, Address addr) {
+        ThreadProxy t = getThreadProxy(addr);
+        AMD64ThreadContext context = (AMD64ThreadContext) t.getContext();
+        AMD64CurrentFrameGuess guesser = new AMD64CurrentFrameGuess(context, thread);
+        if (!guesser.run(GUESS_SCAN_RANGE)) {
+            return null;
+        }
+        if (guesser.getPC() == null) {
+            return new AMD64Frame(guesser.getSP(), guesser.getFP());
+        } else {
+            return new AMD64Frame(guesser.getSP(), guesser.getFP(), guesser.getPC());
+        }
+    }
+
+
+    public void printThreadIDOn(Address addr, PrintStream tty) {
+        tty.print(getThreadProxy(addr));
+    }
+
+
+    public void printInfoOn(Address threadAddr, PrintStream tty) {
+    }
+
+    public Address getLastSP(Address addr) {
+        ThreadProxy t = getThreadProxy(addr);
+        AMD64ThreadContext context = (AMD64ThreadContext) t.getContext();
+        return context.getRegisterAsAddress(AMD64ThreadContext.RSP);
+    }
+
+    public ThreadProxy getThreadProxy(Address addr) {
+        // 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 tidAddr = osThreadAddr.addOffsetTo(osThreadThreadIDField.getOffset());
+
+        JVMDebugger debugger = VM.getVM().getDebugger();
+        return debugger.getThreadForIdentifierAddress(tidAddr);
+    }
+
+}