Check in gcc sources for prebuilt toolchains in Eclair.

9 files changed, 2045 insertions, 0 deletions

diff --git a/gcc-4.2.1/libjava/gnu/classpath/SystemProperties.java b/gcc-4.2.1/libjava/gnu/classpath/SystemProperties.java
new file mode 100644
index 000000000..001663f0b
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/SystemProperties.java
@@ -0,0 +1,157 @@
+/* SystemProperties.java -- Manage the System properties.
+   Copyright (C) 2004, 2005 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath;
+
+import java.util.Properties;
+
+/**
+ * The class manages the System properties. This class is only available to
+ * privileged code (i.e. code loaded by the bootstrap class loader) and
+ * therefore doesn't do any security checks.
+ * This class is separated out from java.lang.System to simplify bootstrap
+ * dependencies and to allow trusted code a simple and efficient mechanism
+ * to access the system properties.
+ */
+public class SystemProperties
+{
+  /**
+   * Stores the current system properties. This can be modified by
+   * {@link #setProperties(Properties)}, but will never be null, because
+   * setProperties(null) sucks in the default properties.
+   */
+  private static Properties properties;
+
+  /**
+   * The default properties. Once the default is stabilized,
+   * it should not be modified;
+   * instead it is cloned when calling <code>setProperties(null)</code>.
+   */
+  private static final Properties defaultProperties = new Properties();
+
+  private static native void insertSystemProperties(Properties properties);
+
+  static
+  {
+    insertSystemProperties(defaultProperties);
+
+    defaultProperties.put("gnu.classpath.version",
+                          Configuration.CLASSPATH_VERSION);
+
+    // Set base URL if not already set.
+    if (defaultProperties.get("gnu.classpath.home.url") == null)
+      defaultProperties.put("gnu.classpath.home.url",
+			    "file://"
+			    + defaultProperties.get("gnu.classpath.home")
+	                    + "/lib");
+
+    // Set short name if not already set.
+    if (defaultProperties.get("gnu.classpath.vm.shortname") == null)
+      {
+	String value = defaultProperties.getProperty("java.vm.name");
+	int index = value.lastIndexOf(' ');
+	if (index != -1)
+	  value = value.substring(index + 1);
+	defaultProperties.put("gnu.classpath.vm.shortname", value);
+      }
+
+    // Network properties
+    if (defaultProperties.get("http.agent") == null)
+      {
+	String userAgent = ("gnu-classpath/"
+	                    + defaultProperties.getProperty("gnu.classpath.version")
+	                    + " ("
+	                    + defaultProperties.getProperty("gnu.classpath.vm.shortname")
+	                    + "/"
+	                    + defaultProperties.getProperty("java.vm.version")
+	                    + ")");
+	 defaultProperties.put("http.agent", userAgent);
+      }
+
+    defaultProperties.put("gnu.cpu.endian",
+			  isWordsBigEndian() ? "big" : "little");
+
+    // XXX FIXME - Temp hack for old systems that set the wrong property
+    if (defaultProperties.get("java.io.tmpdir") == null)
+      defaultProperties.put("java.io.tmpdir",
+                            defaultProperties.get("java.tmpdir"));
+
+    // Note that we use clone here and not new.  Some programs assume
+    // that the system properties do not have a parent.
+    properties = (Properties) defaultProperties.clone();
+  }
+
+  public static String getProperty(String name)
+  {
+    return properties.getProperty(name);
+  }
+
+  public static String getProperty(String name, String defaultValue)
+  {
+    return properties.getProperty(name, defaultValue);
+  }
+
+  public static String setProperty(String name, String value)
+  {
+    return (String) properties.setProperty(name, value);
+  }
+
+  public static Properties getProperties()
+  {
+    return properties;
+  }
+
+  public static void setProperties(Properties properties)
+  {
+    if (properties == null)
+      {
+        // Note that we use clone here and not new.  Some programs
+        // assume that the system properties do not have a parent.
+        properties = (Properties)defaultProperties.clone();
+      }
+
+    SystemProperties.properties = properties;
+  }
+
+  /**
+   * Detect big-endian systems.
+   *
+   * @return true if the system is big-endian.
+   */
+  private static native boolean isWordsBigEndian();
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMFrame.java b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMFrame.java
new file mode 100644
index 000000000..cd213025a
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMFrame.java
@@ -0,0 +1,106 @@
+/* VMFrame.java -- Reference implementation of VM hooks for JDWP Frame access.
+   Copyright (C) 2005, 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath.jdwp;
+
+import gnu.classpath.jdwp.util.Location;
+
+/**
+ * Reference implementation of VM hooks for JDWP Frame access.
+ * 
+ * @author aluchko 
+ */
+
+public class VMFrame
+{
+  /**
+   * Returns the size of a frame ID over JDWP
+   */
+  public static final int SIZE = 8;
+
+  // The object this frame resides in
+  private Object obj;
+  
+  // The current location of this frame
+  private Location loc;
+  
+  // id of this frame
+  private long id;
+  
+  /**
+   * Gets the current location of the frame.
+   */
+  public Location getLocation()
+  {
+    return loc;
+  }
+
+  /**
+   * Returns the value of the variable in the given slot.
+   * 
+   * @param slot the slot containing the variable
+   */
+  public native Object getValue(int slot);
+
+  /**
+   * Assigns the given variable to the given value. 
+   * @param slot The slot which contains the variable
+   * @param value The value to assign the variable to
+   */
+  public native void setValue(int slot, Object value);
+
+  /**
+   * Get the object which is represented by 'this' in the context of the frame,
+   * returns null if the method is native or static.
+   */
+  public Object getObject()
+  {
+    return obj;
+  }
+
+  /**
+   * Get the frameID
+   * @return an id which is unique within the scope of the VM
+   */
+  public long getId()
+  {
+    return id;
+  }
+
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMIdManager.java b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMIdManager.java
new file mode 100644
index 000000000..8d423e9b0
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMIdManager.java
@@ -0,0 +1,427 @@
+/* VMIdManager.java -- A reference/example implementation of a manager for
+   JDWP object/reference type IDs
+
+   Copyright (C) 2005, 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath.jdwp;
+
+import gnu.classpath.jdwp.exception.InvalidClassException;
+import gnu.classpath.jdwp.exception.InvalidObjectException;
+import gnu.classpath.jdwp.id.*;
+
+import java.lang.ref.Reference;
+import java.lang.ref.ReferenceQueue;
+import java.lang.ref.SoftReference;
+import java.nio.ByteBuffer;
+import java.util.HashMap;
+import java.util.Hashtable;
+
+/**
+ * This class manages objects and referencetypes that are reported
+ * to the debugger. All objects and referencetypes reported to the
+ * debugger should go through this manager.
+ *
+ * A brief summary of what an <code>IdManager</code> must provide:
+ *
+ * <code>
+ * public ObjectId getObjectId (Object theObject);
+ * public ObjectId get (long id);
+ * public ObjectId readObjectId (ByteBuffer bb);
+ * public ReferenceTypeId getReferenceTypeId (Class clazz);
+ * public ReferenceTypeId getReferenceType (long id);
+ * public ReferenceTypeId readReferenceTypeId (ByteBuffer bb);
+ * </code>
+ *
+ * See the javadoc on these methods later in this file for more
+ * information on these functions.
+ *
+ * <b>NOTE:</b> All IDs handled by the ID manager (all object and reference
+ * type IDs) are assumed to be of type <code>long</code>.
+ *
+ * <b>NOTE:</b> This class does not manage virtual machine-specific types,
+ * like methods, fields, and frames. These already have unique IDs within
+ * the virtual machine and do not need further abstraction here.
+ *
+ * @author Keith Seitz  (keiths@redhat.com)
+ */
+public class VMIdManager
+{
+  // This factory generates ids for objects and types that may
+  // be sent to a debugger.
+  private static class IdFactory
+  {
+    // ID of last object / referencetype
+    private static Object _idLock = new Object ();
+    private static Object _ridLock = new Object ();
+    private static long _lastId = 0;
+    private static long _lastRid = 0;
+
+    // A list of all ID types
+    private static HashMap _idList = new HashMap ();
+
+    // Initialize the id list with known types
+    static
+    {
+      // ObjectId and ArrayId are special cases. See newObjectId.
+      _idList.put (ClassLoaderId.typeClass, ClassLoaderId.class);
+      _idList.put (ClassObjectId.typeClass, ClassObjectId.class);
+      _idList.put (StringId.typeClass, StringId.class);
+      _idList.put (ThreadId.typeClass, ThreadId.class);
+      _idList.put (ThreadGroupId.typeClass, ThreadGroupId.class);
+    }
+
+    /**
+     * Returns a new id for the given object
+     *
+     * @param obj  SoftReference of the object for which an id is desired
+     * @returns a suitable object id
+     */
+    public static ObjectId newObjectId (SoftReference obj)
+    {
+      ObjectId id = null;
+      Object object = obj.get ();
+
+      // Special case: arrays
+      if (object.getClass ().isArray ())
+	id = new ArrayId ();
+      else
+	{
+	  // Loop through all classes until we hit baseclass
+	  Class myClass;
+	  for (myClass = object.getClass (); myClass != null;
+	       myClass = myClass.getSuperclass ())
+	    {
+	      Class clz = (Class) _idList.get (myClass);
+	      if (clz != null)
+		{
+		  try
+		    {
+		      id = (ObjectId) clz.newInstance ();
+		      synchronized (_idLock)
+			{
+			  id.setId (++_lastId);
+			}
+		      id.setReference (obj);
+		      return id;
+		    }
+		  catch (InstantiationException ie)
+		    {
+		      // This really should not happen
+		      throw new RuntimeException ("cannot create new ID", ie);
+		    }
+		  catch (IllegalAccessException iae)
+		    {
+		      // This really should not happen
+		      throw new RuntimeException ("illegal access of ID", iae);
+		    }
+		}
+	    }
+
+	  /* getSuperclass returned null and no matching ID type found.
+	     So it must derive from Object. */
+	  id = new ObjectId ();
+	}
+
+      synchronized (_idLock)
+	{
+	  id.setId (++_lastId);
+	}
+      id.setReference (obj);
+      return id;
+    }
+
+    /**
+     * Returns a new reference type id for the given class
+     *
+     * @param ref  SoftReference to the desired type
+     * @returns a suitable reference type id or null when the
+     * reference is cleared.
+     */
+    public static ReferenceTypeId newReferenceTypeId (SoftReference ref)
+    {
+      ReferenceTypeId id;
+      Class clazz = (Class) ref.get ();
+      if (clazz == null)
+	return null;
+
+      if (clazz.isArray ())
+	id = new ArrayReferenceTypeId ();
+      else if (clazz.isInterface ())
+	id = new InterfaceReferenceTypeId ();
+      else
+	id = new ClassReferenceTypeId ();
+      id.setReference (ref);
+      synchronized (_ridLock)
+	{
+	  id.setId (++_lastRid);
+	}
+      return id;
+    }
+  }
+
+  /**
+   * This class is a SoftReferenceIdentity type that is used by
+   * the ID manager.
+   */
+  class ReferenceKey extends SoftReference
+  {
+    // Hash code of referent
+    private int _hash;
+
+    /**
+     * Constructs a new <code>ReferenceKey</code> object
+     * with the given referent.
+     *
+     * <p>This constructor should only be used for object lookups
+     * by the backend.
+     *
+     * @param referent  the object to reference
+     */
+    public ReferenceKey (Object referent)
+    {
+      super (referent);
+      _hash = referent.hashCode ();
+    }
+    
+    /**
+     * Constructs a new <code>ReferenceKey</code> object
+     * with the given referent and reference queue.
+     *
+     * <p>The JDWP back-end stores a <code>ReferenceKey</code>
+     * with its corresponding <code>JdwpId</code>. This constructor
+     * is used by the back-end when adding new IDs to be managed.
+     *
+     * @param referent  the object to reference
+     * @param queue     the queue to which to report garbage collections
+     */
+    public ReferenceKey (Object referent, ReferenceQueue queue)
+    {
+      super (referent, queue);
+      _hash = referent.hashCode ();
+    }
+    
+    /**
+     * Returns the hash code of the referent.
+     * This seems hacky, but is required in order to use this class
+     * as a hash table key.
+     *
+     * @returns the hash code of the referent
+     */
+    public int hashCode ()
+    {
+      return _hash;
+    }
+
+    /**
+     * Comparator for keys
+     *
+     * This method can be used in two ways:
+     *
+     * <ol>
+     *    <li>For table lookups, where we want to compare referents</li>
+     *    <li>For clearing GCd objects, where we want to compare the actual
+     *        key object (not the referent)</li>
+     * </ol>
+     */
+    public boolean equals (Object obj)
+    {
+      if (obj instanceof ReferenceKey)
+	{
+	  ReferenceKey ref = (ReferenceKey) obj;
+	  
+	  /* First check if the two references are the same.
+	     If they are, that means we must be clearing GCd objects. */
+	  if (this == obj)
+	    return true;
+	  
+	  return (ref.get () == get ());
+	}
+      
+      return false;
+    }
+  }
+  
+  // instance of VMIdManager
+  private static VMIdManager _idm = new VMIdManager ();
+
+  // A reference queue for our objects
+  private ReferenceQueue _refQueue;
+
+  // Mapping of objects (ReferenceKey) to IDs (ObjectId)
+  private Hashtable _oidTable;
+
+  // Mapping of ID numbers (Long) to IDs (ObjectId)
+  private Hashtable _idTable;
+
+  /* Mapping of class (ReferenceKey) to IDs (ReferenceTypeId) for reference
+     types. Unlike other types, reference id types are NEVER released. */
+  private Hashtable _classTable;
+
+  // Mapping of ID numbers (Long) to reference type IDs (ReferenceTypeId)
+  private Hashtable _ridTable;
+
+  /**
+   * Gets the instance of VMIdManager, constructing a new one
+   * if none currently exists.
+   */
+  public static VMIdManager getDefault ()
+  {
+    return _idm;
+  }
+
+  // Constructs a new <code>IdManager</code>
+  private VMIdManager ()
+  {
+    _refQueue = new ReferenceQueue ();
+    _oidTable = new Hashtable (50);
+    _idTable = new Hashtable (50);
+    _classTable = new Hashtable (20);
+    _ridTable = new Hashtable (20);
+  }
+
+  // Updates the object ID table, removing IDs whose objects have
+  // been garbage collected.
+  private void _update ()
+  {
+    Reference ref;
+    while ((ref = _refQueue.poll ()) != null)
+      {
+	ObjectId id = (ObjectId) _oidTable.get (ref);
+	_oidTable.remove (ref);
+	_idTable.remove (new Long (id.getId ()));
+      }
+  }
+
+  /**
+   * Returns an id for the given object, adding it
+   * if it does not have an id.
+   *
+   * @param theObject  the object to get an ID/add
+   * @returns  the ID of the object
+   */
+  public ObjectId getObjectId (Object theObject)
+  {
+    ReferenceKey ref = new ReferenceKey (theObject, _refQueue);
+    ObjectId id = (ObjectId) _oidTable.get (ref);
+    if (id == null)
+      {
+	// update the tables -- this is an arbitrary place to put this
+	_update ();
+
+	// Object not found. Make new id for it
+	id = IdFactory.newObjectId (ref);
+	_oidTable.put (ref, id);
+	_idTable.put (new Long (id.getId ()), id);
+      }
+
+    return id;
+  }
+
+  /**
+   * Returns the <code>JdwpId</code> for a given ID. Unlike
+   * <code>getId</code>, it throws an exception if the ID is not
+   * known.
+   *
+   * @param id  the numerical ID of the desired <code>JdwpId</code>
+   * @throws InvalidObjectException if the ID is not found
+   */
+  public ObjectId get (long id)
+    throws InvalidObjectException
+  {
+    ObjectId oid = (ObjectId) _idTable.get (new Long (id));
+    if (oid == null)
+      throw new InvalidObjectException (id);
+ 
+    return oid;
+  }
+
+  public ObjectId readObjectId (ByteBuffer bb)
+    throws InvalidObjectException
+  {
+    long id = bb.getLong ();
+    return get (id);
+  }
+
+  /**
+   * Gets the reference type id for the given class, creating
+   * a new one if it does not already have an id
+   *
+   * @param clazz  the class for which to get an ID
+   * @returns  the ID of the class
+   */
+  public ReferenceTypeId getReferenceTypeId (Class clazz)
+  {
+    ReferenceKey ref = new ReferenceKey (clazz);
+    ReferenceTypeId id = (ReferenceTypeId)_classTable.get (ref);
+    if (id == null)
+      {
+	// Object not found. Make new id for it
+	id = IdFactory.newReferenceTypeId (ref);
+	_classTable.put (ref, id);
+	_ridTable.put (new Long (id.getId ()), id);
+      }
+
+    return id;
+  }
+
+  /**
+   * Returns the <code>ReferenceTypeId</code> for a given ID. Unlike
+   * <code>getReferenceTypeId</code>, it throws an exception if the ID is not
+   * known.
+   *
+   * @param id  the numerical ID of the desired reference type
+   * @throws InvalidClassException if the ID is not found
+   */
+  public ReferenceTypeId getReferenceType (long id)
+    throws InvalidClassException
+  {
+    ReferenceTypeId rid = (ReferenceTypeId) _ridTable.get (new Long (id));
+    if (rid == null)
+      throw new InvalidClassException (id);
+ 
+    return rid;
+  }
+
+  public ReferenceTypeId readReferenceTypeId (ByteBuffer bb)
+    throws InvalidClassException
+  {
+    long id = bb.getLong ();
+    return getReferenceType (id);
+  }
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMMethod.java b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMMethod.java
new file mode 100644
index 000000000..d345bc1b5
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMMethod.java
@@ -0,0 +1,178 @@
+/* VMMethod.java -- a method in a virtual machine
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath.jdwp;
+
+import java.io.DataOutputStream;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+
+import gnu.classpath.jdwp.exception.JdwpException;
+import gnu.classpath.jdwp.util.LineTable;
+import gnu.classpath.jdwp.util.VariableTable;
+
+/**
+ * This class is really an amalgamation of two classes: one class
+ * represents a virtual machine method and the other represents
+ * the JDWP back-end's ID for the method.
+ *
+ * @author Keith Seitz  (keiths@redhat.com)
+ */
+public class VMMethod
+{
+  /**
+   * Returns the size of a JDWP method ID
+   * @see gnu.classpath.jdwp.id.JdwpId#SIZE
+   */
+   public static final int SIZE = 8;
+
+  // The class in which this method is declared
+  private Class _class;
+
+  // The method's ID
+  private long _methodId;
+
+  /**
+   * Constructs a new VMMethod object. This constructor is protected
+   * so that only the factory methods of VMVirtualMachine can be used
+   * to create VMMethods.
+   *
+   * @param klass the method's containing class
+   * @param id    method identifier, e.g., jmethodID
+   * @see gnu.classpath.jdwp.VMVirtualMachine#getAllClassMethods
+   * @see gnu.classpath.jdwp.VMVirtualMachine#getClassMethod
+   */
+  protected VMMethod(Class klass, long id)
+  {
+    _class = klass;
+    _methodId = id;
+  }
+
+  /**
+   * Returns the internal method ID for this method
+   */
+  public long getId()
+  {
+    return _methodId;
+  }
+
+  /**
+   * Returns the method's declaring class
+   */
+  public Class getDeclaringClass()
+  {
+    return _class;
+  }
+
+  /**
+   * Returns the name of this method
+   */
+  public native String getName();
+
+  /**
+   * Returns the signature of this method
+   */
+  public native String getSignature();
+
+  /**
+   * Returns the method's modifier flags
+   */
+  public native int getModifiers();
+
+  /**
+   * "Returns line number information for the method, if present. The line
+   * table maps source line numbers to the initial code index of the line.
+   * The line table is ordered by code index (from lowest to highest). The
+   * line number information is constant unless a new class definition is
+   * installed using RedefineClasses."
+   *
+   * @return the line table
+   * @throws JdwpException
+   */
+  public native LineTable getLineTable()
+    throws JdwpException;
+
+  /**
+   * "Returns variable information for the method. The variable table
+   * includes arguments and locals declared within the method. For instance
+   * methods, the "this" reference is included in the table. Also, synthetic
+   * variables may be present."
+   *
+   * @return the variable table
+   * @throws JdwpException
+   */
+  public native VariableTable getVariableTable()
+    throws JdwpException;
+
+  /**
+   * Returns a string representation of this method (not
+   * required but nice for debugging).
+   */
+  public String toString()
+  {
+    return getDeclaringClass().getName() + "." + getName();
+  }
+
+  /**
+   * Writes the method's ID to the output stream
+   *
+   * @param ostream the output stream to which to write
+   * @throws IOException for any errors writing to the stream
+   * @see gnu.classpath.jdwp.id.JdwpId#write
+   */
+  public void writeId(DataOutputStream ostream)
+    throws IOException
+  {
+    ostream.writeLong(getId());
+  }
+
+  /**
+   * Returns a VMMethod from the ID in the byte buffer
+   *
+   * @param klass the method's declaring class
+   * @param bb    a ByteBuffer containing the method's ID
+   * @throws JdwpException for any errors creating the method
+   * @throws IOException for any errors reading from the buffer
+   */
+  public static VMMethod readId(Class klass, ByteBuffer bb)
+    throws JdwpException, IOException
+  {
+    return VMVirtualMachine.getClassMethod(klass, bb.getLong());
+  }
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMVirtualMachine.java b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMVirtualMachine.java
new file mode 100644
index 000000000..5c4018fce
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/VMVirtualMachine.java
@@ -0,0 +1,335 @@
+/* VMVirtualMachine.java -- A reference implementation of a JDWP virtual
+   machine
+
+   Copyright (C) 2005, 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.classpath.jdwp;
+
+import gnu.classpath.jdwp.event.EventRequest;
+import gnu.classpath.jdwp.exception.InvalidMethodException;
+import gnu.classpath.jdwp.exception.JdwpException;
+import gnu.classpath.jdwp.util.MethodResult;
+import java.lang.reflect.Method;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Hashtable;
+import java.util.Iterator;
+
+/**
+ * A virtual machine according to JDWP.
+ *
+ * @author Keith Seitz  <keiths@redhat.com>
+ */
+public class VMVirtualMachine
+{
+  // Thread suspension table. Maps Thread to suspend count (Integer)
+  private static Hashtable _jdwp_suspend_counts;
+
+  public static native void initialize ();
+
+  /**
+   * Suspend a thread
+   *
+   * @param  thread  the thread to suspend
+   */
+  public static native void suspendThread (Thread thread)
+    throws JdwpException;
+
+  /**
+   * Suspend all threads
+   */
+  public static void suspendAllThreads ()
+    throws JdwpException
+  {
+    // Our JDWP thread group -- don't suspend any of those threads
+    Thread current = Thread.currentThread ();
+    ThreadGroup jdwpGroup = Jdwp.getDefault().getJdwpThreadGroup();
+
+    // Find the root ThreadGroup
+    ThreadGroup group = jdwpGroup;
+    ThreadGroup parent = group.getParent ();
+    while (parent != null)
+      {
+	group = parent;
+	parent = group.getParent ();
+      }
+    
+    // Get all the threads in the system
+    int num = group.activeCount ();
+    Thread[] threads = new Thread[num];
+    group.enumerate (threads);
+
+    for (int i = 0; i < num; ++i)
+      {
+	Thread t = threads[i];
+	if (t != null)
+	  {
+	    if (t.getThreadGroup () == jdwpGroup || t == current)
+	      {
+		// Don't suspend the current thread or any JDWP thread
+		continue;
+	      }
+	    else
+	      suspendThread (t);
+	  }
+      }
+
+    // Now suspend the current thread
+    if (current.getThreadGroup() != jdwpGroup)
+      suspendThread (current);
+  }
+
+  /**
+   * Resume a thread. A thread must be resumed as many times
+   * as it has been suspended.
+   *
+   * @param  thread  the thread to resume
+   */
+  public static native void resumeThread (Thread thread)
+    throws JdwpException;
+
+  /**
+   * Resume all threads. This simply decrements the thread's
+   * suspend count. It can not be used to force the application
+   * to run.
+   */
+  public static void resumeAllThreads ()
+    throws JdwpException
+  {
+    // Our JDWP thread group -- don't resume
+    Thread current = Thread.currentThread ();
+    ThreadGroup jdwpGroup = current.getThreadGroup ();
+
+    // Find the root ThreadGroup
+    ThreadGroup group = jdwpGroup;
+    ThreadGroup parent = group.getParent ();
+    while (parent != null)
+      {
+	group = parent;
+	parent = group.getParent ();
+      }
+    
+    // Get all the threads in the system
+    int num = group.activeCount ();
+    Thread[] threads = new Thread[num];
+    group.enumerate (threads);
+
+    for (int i = 0; i < num; ++i)
+      {
+	Thread t = threads[i];
+	if (t != null)
+	  {
+	    if (t.getThreadGroup () == jdwpGroup || t == current)
+	      {
+		// Don't resume the current thread or any JDWP thread
+		continue;
+	      }
+	    else
+	      resumeThread (t);
+	  }
+      }
+  }
+
+  /**
+   * Get the suspend count for a give thread
+   *
+   * @param  thread  the thread whose suspend count is desired
+   * @return the number of times the thread has been suspended
+   */
+  public static native int getSuspendCount (Thread thread)
+    throws JdwpException;
+ 
+  /**
+   * Returns a count of the number of loaded classes in the VM
+   */
+  public static native int getAllLoadedClassesCount ()
+    throws JdwpException;
+
+  /**
+   * Returns an iterator over all the loaded classes in the VM
+   */
+  public static native Iterator getAllLoadedClasses ()
+    throws JdwpException;
+
+  /**
+   * Returns the status of the given class
+   *
+   * @param  clazz  the class whose status is desired
+   * @return a flag containing the class's status
+   * @see JdwpConstants.ClassStatus
+   */
+  public static native int getClassStatus (Class clazz)
+    throws JdwpException;
+
+  /**
+   * Returns all of the methods defined in the given class. This
+   * includes all methods, constructors, and class initializers.
+   *
+   * @param  klass  the class whose methods are desired
+   * @return an array of virtual machine methods
+   */
+  public static native VMMethod[] getAllClassMethods (Class klass)
+    throws JdwpException;
+
+  /**
+   * A factory method for getting valid virtual machine methods
+   * which may be passed to/from the debugger.
+   *
+   * @param klass the class in which the method is defined
+   * @param id    the ID of the desired method
+   * @return the desired internal representation of the method
+   * @throws InvalidMethodException if the method is not defined
+   *           in the class
+   * @throws JdwpException for any other error
+   */
+  public static native VMMethod getClassMethod(Class klass, long id)
+    throws JdwpException;
+
+  /**
+   * Returns the thread's call stack
+   *
+   * @param  thread  thread for which to get call stack
+   * @param  start   index of first frame to return
+   * @param  length  number of frames to return (-1 for all frames)
+   * @return a list of frames
+   */
+  public static native ArrayList getFrames (Thread thread, int start,
+					    int length)
+    throws JdwpException;
+
+  /**
+   * Returns the frame for a given thread with the frame ID in
+   * the buffer
+   *
+   * I don't like this.
+   *
+   * @param  thread  the frame's thread
+   * @param  bb      buffer containing the frame's ID
+   * @return the desired frame
+   */
+  public static native VMFrame getFrame (Thread thread, ByteBuffer bb)
+    throws JdwpException;
+
+  /**
+   * Returns the number of frames in the thread's stack
+   *
+   * @param  thread  the thread for which to get a frame count
+   * @return the number of frames in the thread's stack
+   */
+  public static native int getFrameCount (Thread thread)
+    throws JdwpException;
+
+
+  /**
+   * Returns the status of a thread
+   *
+   * @param  thread  the thread for which to get status
+   * @return integer status of the thread
+   * @see JdwpConstants.ThreadStatus
+   */
+  public static native int getThreadStatus (Thread thread)
+    throws JdwpException;
+
+  /**
+   * Returns a list of all classes which this class loader has been
+   * requested to load
+   *
+   * @param  cl  the class loader
+   * @return a list of all visible classes
+   */
+  public static native ArrayList getLoadRequests (ClassLoader cl)
+    throws JdwpException;
+
+  /**
+   * Executes a method in the virtual machine
+   *
+   * @param  obj         instance in which to invoke method (null for static)
+   * @param  thread      the thread in which to invoke the method
+   * @param  clazz       the class in which the method is defined
+   * @param  method      the method to invoke
+   * @param  values      arguments to pass to method
+   * @param  nonVirtual  "otherwise, normal virtual invoke
+   *                     (instance methods only) "
+   * @return a result object containing the results of the invocation
+   */
+  public static native MethodResult executeMethod (Object obj, Thread thread,
+					    Class clazz, Method method,
+					    Object[] values,
+					    boolean nonVirtual)
+    throws JdwpException;
+
+  /**
+   * "Returns the name of source file in which a reference type was declared"
+   *
+   * @param  clazz  the class for which to return a source file
+   * @return a string containing the source file name; "no path information
+   *         for the file is included"
+   */
+  public static native String getSourceFile (Class clazz)
+    throws JdwpException;
+
+  /**
+   * Register a request from the debugger
+   *
+   * Virtual machines have two options. Either do nothing and allow
+   * the event manager to take care of the request (useful for broadcast-type
+   * events like class prepare/load/unload, thread start/end, etc.)
+   * or do some internal work to set up the event notification (useful for
+   * execution-related events like breakpoints, single-stepping, etc.).
+   */
+  public static native void registerEvent (EventRequest request)
+    throws JdwpException;
+
+  /**
+   * Unregisters the given request
+   *
+   * @param  request  the request to unregister
+   */
+  public static native void unregisterEvent (EventRequest request)
+    throws JdwpException;
+
+
+  /**
+   * Clear all events of the given kind
+   *
+   * @param  kind  the type of events to clear
+   */
+  public static native void clearEvents (byte kind)
+    throws JdwpException;
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMFrame.cc b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMFrame.cc
new file mode 100644
index 000000000..de3b844f4
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMFrame.cc
@@ -0,0 +1,26 @@
+// natFrame.cc -- native support for VMFrame.java
+
+/* Copyright (C) 2006 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+#include <gcj/cni.h>
+
+#include <gnu/classpath/jdwp/VMFrame.h>
+
+using namespace java::lang;
+
+Object*
+gnu::classpath::jdwp::VMFrame::getValue (jint slot)
+{
+  return 0;
+}
+
+void
+gnu::classpath::jdwp::VMFrame::setValue (jint slot, Object* value)
+{
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMMethod.cc b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMMethod.cc
new file mode 100644
index 000000000..eb1d6fda0
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMMethod.cc
@@ -0,0 +1,47 @@
+// natVMMethod.cc -- native support for VMMethod
+
+/* Copyright (C) 2006 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <gcj/cni.h>
+
+#include <gnu/classpath/jdwp/VMMethod.h>
+#include <gnu/classpath/jdwp/util/LineTable.h>
+#include <gnu/classpath/jdwp/util/VariableTable.h>
+
+java::lang::String*
+gnu::classpath::jdwp::VMMethod::getName ()
+{
+  return NULL;
+}
+
+java::lang::String*
+gnu::classpath::jdwp::VMMethod::getSignature ()
+{
+  return NULL;
+}
+
+jint
+gnu::classpath::jdwp::VMMethod::getModifiers ()
+{
+  return 0;
+}
+
+gnu::classpath::jdwp::util::LineTable*
+gnu::classpath::jdwp::VMMethod::getLineTable ()
+{
+  return NULL;
+}
+
+
+gnu::classpath::jdwp::util::VariableTable*
+gnu::classpath::jdwp::VMMethod::getVariableTable ()
+{
+  return NULL;
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMVirtualMachine.cc b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMVirtualMachine.cc
new file mode 100644
index 000000000..5e790b965
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/jdwp/natVMVirtualMachine.cc
@@ -0,0 +1,347 @@
+// natVMVirtualMachine.cc - native support for VMVirtualMachine
+
+/* Copyright (C) 2006 Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+#include <config.h>
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <jvmti.h>
+
+#include <java/lang/Class.h>
+#include <java/lang/ClassLoader.h>
+#include <java/lang/Integer.h>
+#include <java/lang/String.h>
+#include <java/lang/StringBuffer.h>
+#include <java/lang/Thread.h>
+#include <java/nio/ByteBuffer.h>
+#include <java/util/ArrayList.h>
+#include <java/util/Hashtable.h>
+#include <java/util/Iterator.h>
+
+#include <gnu/classpath/jdwp/VMFrame.h>
+#include <gnu/classpath/jdwp/VMMethod.h>
+#include <gnu/classpath/jdwp/VMVirtualMachine.h>
+#include <gnu/classpath/jdwp/event/EventRequest.h>
+#include <gnu/classpath/jdwp/exception/JdwpInternalErrorException.h>
+#include <gnu/classpath/jdwp/util/MethodResult.h>
+
+using namespace java::lang;
+using namespace gnu::classpath::jdwp::event;
+using namespace gnu::classpath::jdwp::util;
+
+// JVMTI environment
+static jvmtiEnv *_jdwp_jvmtiEnv;
+
+void
+gnu::classpath::jdwp::VMVirtualMachine::initialize ()
+{
+  _jdwp_suspend_counts = new ::java::util::Hashtable ();
+  JavaVM *vm = _Jv_GetJavaVM ();
+  vm->GetEnv (reinterpret_cast<void **> (&_jdwp_jvmtiEnv), JVMTI_VERSION_1_0);
+}
+
+void
+gnu::classpath::jdwp::VMVirtualMachine ::suspendThread (Thread *thread)
+{
+  jint value;
+  Integer *count;
+  {
+    JvSynchronize dummy (_jdwp_suspend_counts);
+    count = reinterpret_cast<Integer *> (_jdwp_suspend_counts->get (thread));
+    if (count == NULL)
+      {
+	// New -- suspend thread
+	value = 0;
+      }
+    else
+      {
+	// Thread already suspended
+	value = count->intValue ();
+      }
+
+    count = Integer::valueOf (++value);
+    _jdwp_suspend_counts->put (thread, count);
+  }
+
+  if (value == 1)
+    {
+      // Suspend the thread
+      jvmtiError err = _jdwp_jvmtiEnv->SuspendThread (thread);
+      if (err != JVMTI_ERROR_NONE)
+	{
+	  using namespace gnu::classpath::jdwp::exception;
+	  char *reason;
+	  _jdwp_jvmtiEnv->GetErrorName (err, &reason);
+	  ::java::lang::String *txt
+	      = JvNewStringLatin1 ("could not suspend thread: ");
+	  ::java::lang::StringBuffer *msg
+	      = new ::java::lang::StringBuffer (txt);
+	  msg->append (JvNewStringLatin1 (reason));
+	  _jdwp_jvmtiEnv->Deallocate ((unsigned char *) reason);
+	  throw new JdwpInternalErrorException (msg->toString ());
+	}
+    }
+}
+
+void
+gnu::classpath::jdwp::VMVirtualMachine::resumeThread (Thread *thread)
+{
+  jint value;
+  {
+    JvSynchronize dummy (_jdwp_suspend_counts);
+    Integer *count
+      = reinterpret_cast<Integer *> (_jdwp_suspend_counts->get (thread));
+    if (count == NULL)
+      {
+	// Thread not suspended: ThreadReference.Resume says to ignore it.
+	return;
+      }
+    else
+      {
+	// Decrement suspend count
+	value = count->intValue () - 1;
+      }
+
+    if (value == 0)
+      {
+	// Thread will be resumed, remove from table
+	_jdwp_suspend_counts->remove (thread);
+      }
+    else
+      {
+	// Thread stays suspended: record new suspend count
+	count = Integer::valueOf (value);
+	_jdwp_suspend_counts->put (thread, count);
+      }
+  }
+
+  if (value == 0)
+    {
+      jvmtiError err = _jdwp_jvmtiEnv->ResumeThread (thread);
+      if (err != JVMTI_ERROR_NONE)
+	{
+	  using namespace gnu::classpath::jdwp::exception;
+	  char *reason;
+	  _jdwp_jvmtiEnv->GetErrorName (err, &reason);
+	  ::java::lang::String *txt 
+	      = JvNewStringLatin1 ("could not resume thread: ");
+	  ::java::lang::StringBuffer *msg
+	      = new ::java::lang::StringBuffer (txt);
+	  msg->append (JvNewStringLatin1 (reason));
+	  _jdwp_jvmtiEnv->Deallocate ((unsigned char *) reason);
+	  throw new JdwpInternalErrorException (msg->toString ());
+	}
+    }
+}
+
+jint
+gnu::classpath::jdwp::VMVirtualMachine::getSuspendCount (Thread *thread)
+{
+  jint suspensions = 0;
+  Integer *count
+    = reinterpret_cast<Integer *> (_jdwp_suspend_counts->get (thread));
+  if (count != NULL)
+    suspensions = count->intValue ();
+  return suspensions;
+}
+
+void
+gnu::classpath::jdwp::VMVirtualMachine::registerEvent (EventRequest *request)
+{
+  switch (request->getEventKind ())
+    {
+    case EventRequest::EVENT_SINGLE_STEP:
+      break;
+
+    case EventRequest::EVENT_BREAKPOINT:
+      break;
+
+    case EventRequest::EVENT_FRAME_POP:
+      break;
+
+    case EventRequest::EVENT_EXCEPTION:
+      break;
+
+    case EventRequest::EVENT_USER_DEFINED:
+      break;
+
+    case EventRequest::EVENT_THREAD_START:
+      break;
+
+    case EventRequest::EVENT_THREAD_END:
+      break;
+
+    case EventRequest::EVENT_CLASS_PREPARE:
+      break;
+
+    case EventRequest::EVENT_CLASS_LOAD:
+      break;
+
+    case EventRequest::EVENT_CLASS_UNLOAD:
+      break;
+
+    case EventRequest::EVENT_FIELD_ACCESS:
+      break;
+
+    case EventRequest::EVENT_FIELD_MODIFY:
+      break;
+
+    case EventRequest::EVENT_METHOD_ENTRY:
+      break;
+
+    case EventRequest::EVENT_METHOD_EXIT:
+      break;
+
+    case EventRequest::EVENT_VM_INIT:
+      break;
+      
+    case EventRequest::EVENT_VM_DEATH:
+      break;
+    }
+}
+
+void
+gnu::classpath::jdwp::VMVirtualMachine::unregisterEvent (EventRequest *request)
+{
+  switch (request->getEventKind ())
+    {
+    case EventRequest::EVENT_SINGLE_STEP:
+      break;
+
+    case EventRequest::EVENT_BREAKPOINT:
+      break;
+
+    case EventRequest::EVENT_FRAME_POP:
+      break;
+
+    case EventRequest::EVENT_EXCEPTION:
+      break;
+
+    case EventRequest::EVENT_USER_DEFINED:
+      break;
+
+    case EventRequest::EVENT_THREAD_START:
+      break;
+
+    case EventRequest::EVENT_THREAD_END:
+      break;
+	
+    case EventRequest::EVENT_CLASS_PREPARE:
+      break;
+
+    case EventRequest::EVENT_CLASS_LOAD:
+      break;
+
+    case EventRequest::EVENT_CLASS_UNLOAD:
+      break;
+
+    case EventRequest::EVENT_FIELD_ACCESS:
+      break;
+
+    case EventRequest::EVENT_FIELD_MODIFY:
+      break;
+
+    case EventRequest::EVENT_METHOD_ENTRY:
+      break;
+
+    case EventRequest::EVENT_METHOD_EXIT:
+      break;
+
+    case EventRequest::EVENT_VM_INIT:
+      break;
+      
+    case EventRequest::EVENT_VM_DEATH:
+      break;
+    }
+}
+
+void
+gnu::classpath::jdwp::VMVirtualMachine::clearEvents (jbyte kind)
+{
+}
+
+jint
+gnu::classpath::jdwp::VMVirtualMachine::getAllLoadedClassesCount (void)
+{
+  return 0;
+}
+
+java::util::Iterator *
+gnu::classpath::jdwp::VMVirtualMachine::getAllLoadedClasses (void)
+{
+  return NULL;
+}
+
+jint
+gnu::classpath::jdwp::VMVirtualMachine::getClassStatus (jclass klass)
+{
+  return 0;
+}
+
+JArray<gnu::classpath::jdwp::VMMethod *> *
+gnu::classpath::jdwp::VMVirtualMachine::getAllClassMethods (jclass klass)
+{
+  return NULL;
+}
+
+gnu::classpath::jdwp::VMMethod *
+gnu::classpath::jdwp::VMVirtualMachine::getClassMethod (jclass klass, jlong id)
+{
+  return NULL;
+}
+
+java::util::ArrayList *
+gnu::classpath::jdwp::VMVirtualMachine::getFrames (Thread *thread,
+						   jint start,
+						   jint length)
+{
+  return NULL;
+}
+
+gnu::classpath::jdwp::VMFrame *
+gnu::classpath::jdwp::VMVirtualMachine::getFrame (Thread *thread,
+						  ::java::nio::ByteBuffer *bb)
+{
+  return NULL;
+}
+
+jint
+gnu::classpath::jdwp::VMVirtualMachine::getFrameCount (Thread *thread)
+{
+  return 0;
+}
+
+jint
+gnu::classpath::jdwp::VMVirtualMachine::getThreadStatus (Thread *thread)
+{
+  return 0;
+}
+
+java::util::ArrayList *
+gnu::classpath::jdwp::VMVirtualMachine::getLoadRequests (ClassLoader *cl)
+{
+  return NULL;
+}
+
+MethodResult *
+gnu::classpath::jdwp::VMVirtualMachine::executeMethod (jobject obj,
+						       Thread *thread,
+						       jclass clazz,
+						       reflect::Method *method,
+						       jobjectArray values,
+						       jboolean nonVirtual)
+{
+  return NULL;
+}
+
+jstring
+gnu::classpath::jdwp::VMVirtualMachine::getSourceFile (jclass clazz)
+{
+  return NULL;
+}
diff --git a/gcc-4.2.1/libjava/gnu/classpath/natSystemProperties.cc b/gcc-4.2.1/libjava/gnu/classpath/natSystemProperties.cc
new file mode 100644
index 000000000..8196ea33f
--- /dev/null
+++ b/gcc-4.2.1/libjava/gnu/classpath/natSystemProperties.cc
@@ -0,0 +1,422 @@
+// natSystemProperties.cc - Implementation of native side of
+// SystemProperties class.
+
+/* Copyright (C) 2005, 2006  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+#include <config.h>
+#include <platform.h>
+
+#include <stdlib.h>
+#include <errno.h>
+
+#ifdef HAVE_PWD_H
+#include <pwd.h>
+#endif
+
+#ifdef HAVE_UNAME
+#include <sys/utsname.h>
+#endif
+
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
+#endif
+
+#ifdef HAVE_LANGINFO_H
+#include <langinfo.h>
+#endif
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java-props.h>
+#include <gnu/classpath/SystemProperties.h>
+#include <java/lang/String.h>
+#include <jni.h>
+
+char *_Jv_Module_Load_Path = NULL;
+
+#ifdef USE_LTDL
+#include <ltdl.h>
+
+void
+_Jv_SetDLLSearchPath (const char *path)
+{
+  _Jv_Module_Load_Path = strdup (path);
+}
+
+#else
+
+void
+_Jv_SetDLLSearchPath (const char *)
+{
+  // Nothing.
+}
+
+#endif /* USE_LTDL */
+
+#if ! defined (DEFAULT_FILE_ENCODING) && defined (HAVE_ICONV) \
+    && defined (HAVE_NL_LANGINFO)
+
+static const char *
+file_encoding ()
+{
+  setlocale (LC_CTYPE, "");
+  const char *e = nl_langinfo (CODESET);
+  if (e == NULL || *e == '\0')
+    e = "8859_1";
+  return e;
+}
+
+#define DEFAULT_FILE_ENCODING file_encoding ()
+
+#endif
+
+#ifndef DEFAULT_FILE_ENCODING
+#define DEFAULT_FILE_ENCODING "8859_1"
+#endif
+
+static const char *default_file_encoding = DEFAULT_FILE_ENCODING;
+
+#if defined(HAVE_GETPWUID_R) && defined(_POSIX_PTHREAD_SEMANTICS)
+/* Use overload resolution to find out the signature of getpwuid_r.  */
+
+  /* This is Posix getpwuid_r.  */
+template <typename T_uid, typename T_passwd, typename T_buf, typename T_len>
+static inline int
+getpwuid_adaptor(int (*getpwuid_r)(T_uid user_id, T_passwd *pwd_r,
+				   T_buf *buf_r, T_len len_r,
+				   T_passwd **pwd_entry_ptr),
+		 uid_t user_id, struct passwd *pwd_r,
+		 char *buf_r, size_t len_r, struct passwd **pwd_entry)
+{
+  return getpwuid_r (user_id, pwd_r, buf_r, len_r, pwd_entry);
+}
+
+/* This is used on HPUX 10.20 */
+template <typename T_uid, typename T_passwd, typename T_buf, typename T_len>
+static inline int
+getpwuid_adaptor(int (*getpwuid_r)(T_uid user_id, T_passwd *pwd_r,
+				   T_buf *buf_r, T_len len_r),
+		 uid_t user_id, struct passwd *pwd_r,
+		 char *buf_r, size_t len_r, struct passwd **pwd_entry)
+{
+  return getpwuid_r (user_id, pwd_r, buf_r, len_r);
+}
+
+/* This is used on IRIX 5.2.  */
+template <typename T_uid, typename T_passwd, typename T_buf, typename T_len>
+static inline int
+getpwuid_adaptor(T_passwd * (*getpwuid_r)(T_uid user_id, T_passwd *pwd_r,
+					  T_buf *buf_r, T_len len_r),
+		 uid_t user_id, struct passwd *pwd_r,
+		 char *buf_r, size_t len_r, struct passwd **pwd_entry)
+{
+  *pwd_entry = getpwuid_r (user_id, pwd_r, buf_r, len_r);
+  return (*pwd_entry == NULL) ? errno : 0;
+}
+#endif
+
+// Prepend GCJ_VERSIONED_LIBDIR to a module search path stored in a
+// Java string, if the path is not already prefixed by
+// GCJ_VERSIONED_LIBDIR.  Return a newly JvMalloc'd char buffer.  The
+// result should be freed using JvFree.  See
+// _Jv_PrependVersionedLibdir in prims.cc.
+static char*
+PrependVersionedLibdir (::java::lang::String* libpath)
+{
+  char* retval = 0;
+
+  // Extract a C char array from libpath.
+  char* val = (char*) _Jv_Malloc (JvGetStringUTFLength (libpath) + 1);
+  jsize total = JvGetStringUTFRegion (libpath, 0, libpath->length(), val);
+  val[total] = '\0';
+  retval = _Jv_PrependVersionedLibdir (val);
+  JvFree (val);
+
+  return retval;
+}
+
+void
+gnu::classpath::SystemProperties::insertSystemProperties (java::util::Properties *newprops)
+{
+  // A convenience define.
+#define SET(Prop,Val) \
+	newprops->put(JvNewStringLatin1 (Prop), JvNewStringLatin1 (Val))
+
+  // A mixture of the Java Product Versioning Specification
+  // (introduced in 1.2), and earlier versioning properties.  Some
+  // programs rely on seeing values that they expect, so we claim to
+  // be a 1.4-ish VM for their sake.
+  SET ("java.version", JV_VERSION);
+  SET ("java.runtime.version", JV_VERSION);
+  SET ("java.vendor", "Free Software Foundation, Inc.");
+  SET ("java.vendor.url", "http://gcc.gnu.org/java/");
+  SET ("java.class.version", "48.0");
+  SET ("java.vm.specification.version", "1.0");
+  SET ("java.vm.specification.name", "Java(tm) Virtual Machine Specification");
+  SET ("java.vm.specification.vendor", "Sun Microsystems Inc.");
+  SET ("java.vm.version", __VERSION__);
+  SET ("java.vm.vendor", "Free Software Foundation, Inc.");
+  SET ("java.vm.name", "GNU libgcj");
+  SET ("java.specification.version", JV_API_VERSION);
+  SET ("java.specification.name", "Java(tm) Platform API Specification");
+  SET ("java.specification.vendor", "Sun Microsystems Inc.");
+
+  char value[100];
+#define NAME "GNU libgcj "
+  strcpy (value, NAME);
+  strncpy (value + sizeof (NAME) - 1, __VERSION__,
+	   sizeof(value) - sizeof(NAME));
+  value[sizeof (value) - 1] = '\0';
+  jstring version = JvNewStringLatin1 (value);
+  newprops->put (JvNewStringLatin1 ("java.fullversion"), version);
+  newprops->put (JvNewStringLatin1 ("java.vm.info"), version);
+
+  // This definition is rather arbitrary: we choose $(prefix).  In
+  // part we do this because most people specify only --prefix and
+  // nothing else when installing gcj.  Plus, people are free to
+  // redefine `java.home' with `-D' if necessary.
+  SET ("java.home", JAVA_HOME);
+  SET ("gnu.classpath.home", PREFIX);
+  // This is set to $(toolexeclibdir) because we use this to find
+  // .security files at runtime.
+  char val2[sizeof ("file://") + sizeof (TOOLEXECLIBDIR) + 1];
+  strcpy (val2, "file://");
+  strcat (val2, TOOLEXECLIBDIR);
+  SET ("gnu.classpath.home.url", val2);
+
+  SET ("file.encoding", default_file_encoding);
+
+#ifdef HAVE_UNAME
+  struct utsname u;
+  if (! uname (&u))
+    {
+      SET ("os.name", u.sysname);
+      SET ("os.version", u.release);
+
+      // Normalize x86 architecture names to "i386" (except on Windows, which 
+      // is handled in win32.cc).
+      if (u.machine[0] == 'i'
+	  && u.machine[1] != 0
+	  && u.machine[2] == '8'
+	  && u.machine[3] == '6'
+	  && u.machine[4] == 0)
+	SET ("os.arch", "i386");
+      else
+	SET ("os.arch", u.machine);
+    }
+  else
+    {
+      SET ("os.name", "unknown");
+      SET ("os.arch", "unknown");
+      SET ("os.version", "unknown");
+    }
+#endif /* HAVE_UNAME */
+
+#ifndef NO_GETUID
+#ifdef HAVE_PWD_H
+  uid_t user_id = getuid ();
+  struct passwd *pwd_entry;
+
+#if defined(HAVE_GETPWUID_R) && defined(_POSIX_PTHREAD_SEMANTICS)
+  struct passwd pwd_r;
+  size_t len_r = 200;
+  char *buf_r = (char *) _Jv_AllocBytes (len_r);
+
+  while (buf_r != NULL)
+    {
+      int r = getpwuid_adaptor (getpwuid_r, user_id, &pwd_r,
+				buf_r, len_r, &pwd_entry);
+      if (r == 0)
+	break;
+      else if (r != ERANGE)
+	{
+	  pwd_entry = NULL;
+	  break;
+	}
+      len_r *= 2;
+      buf_r = (char *) _Jv_AllocBytes (len_r);
+    }
+#else
+  pwd_entry = getpwuid (user_id);
+#endif /* HAVE_GETPWUID_R */
+
+  if (pwd_entry != NULL)
+    {
+      SET ("user.name", pwd_entry->pw_name);
+      SET ("user.home", pwd_entry->pw_dir);
+      SET ("gnu.gcj.user.realname", pwd_entry->pw_gecos);
+    }
+#endif /* HAVE_PWD_H */
+#endif /* NO_GETUID */
+
+#ifdef HAVE_GETCWD
+#ifdef HAVE_UNISTD_H
+  /* Use getcwd to set "user.dir". */
+  int buflen = 250;
+  char *buffer = (char *) malloc (buflen);
+  while (buffer != NULL)
+    {
+      if (getcwd (buffer, buflen) != NULL)
+	{
+	  SET ("user.dir", buffer);
+	  break;
+	}
+      if (errno != ERANGE)
+	break;
+      buflen = 2 * buflen;
+      buffer = (char *) realloc (buffer, buflen);
+    }
+  if (buffer != NULL)
+    free (buffer);
+#endif /* HAVE_UNISTD_H */
+#endif /* HAVE_GETCWD */
+
+  // Set user locale properties based on setlocale()
+#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
+  // We let the user choose the locale.  However, since Java differs
+  // from POSIX, we arbitrarily pick LC_MESSAGES as determining the
+  // Java locale.  We can't use LC_ALL because it might return a full
+  // list of all the settings.  If we don't have LC_MESSAGES then we
+  // just default to `en_US'.
+  setlocale (LC_ALL, "");
+  char *locale = setlocale (LC_MESSAGES, "");
+  if (locale && strlen (locale) >= 2)
+    {
+      char buf[3];
+      buf[2] = '\0';
+      // copy the first two chars to user.language
+      strncpy (buf, locale, 2);
+      SET ("user.language", buf);
+      // if the next char is a '_', copy the two after that to user.region
+      locale += 2;
+      if (locale[0] == '_')
+        {
+	  locale++;
+	  strncpy (buf, locale, 2);
+	  SET ("user.region", buf);
+        }
+    }
+  else
+#endif /* HAVE_SETLOCALE and HAVE_LC_MESSAGES */
+    {
+      SET ("user.language", "en");
+      SET ("user.region", "US");
+    }  
+
+  // Set the java extension directories property if it has not yet been
+  // specified.
+  ::java::lang::String *extdirs = newprops->getProperty(JvNewStringLatin1("java.ext.dirs"));
+  if (! extdirs)
+    SET ("java.ext.dirs", JAVA_EXT_DIRS);
+
+  // The endorsed directories that libgcj knows about by default.
+  // This is a way to get other jars into the boot class loader
+  // without overriding java.endorsed.dirs.
+  SET ("gnu.gcj.runtime.endorsed.dirs", GCJ_ENDORSED_DIRS);
+
+  // The path to libgcj's boot classes
+  SET ("sun.boot.class.path", BOOT_CLASS_PATH);
+
+  // If there is a default system database, set it.
+  SET ("gnu.gcj.precompiled.db.path", LIBGCJ_DEFAULT_DATABASE);
+
+  // Set some properties according to whatever was compiled in with
+  // `-D'.  Important: after this point, the only properties that
+  // should be set are those which either the user cannot meaningfully
+  // override, or which augment whatever value the user has provided.
+  for (int i = 0; i < _Jv_Properties_Count; ++i)
+    {
+      const char *s, *p;
+      // Find the `='.
+      for (s = p = _Jv_Compiler_Properties[i]; *s && *s != '='; ++s)
+	;
+      jstring name = JvNewStringLatin1 (p, s - p);
+      jstring val = JvNewStringLatin1 (*s == '=' ? s + 1 : s);
+      newprops->put (name, val);
+    }
+
+  // Set the system properties from the user's environment.
+#ifndef DISABLE_GETENV_PROPERTIES
+  if (_Jv_Environment_Properties)
+    {
+      size_t i = 0;
+
+      while (_Jv_Environment_Properties[i].key)
+	{
+	  SET (_Jv_Environment_Properties[i].key, 
+	       _Jv_Environment_Properties[i].value);
+	  i++;
+	}
+    }
+#endif
+
+  // The name used to invoke this process (argv[0] in C).
+  SET ("gnu.gcj.progname", _Jv_GetSafeArg (0));
+
+  // Allow platform specific settings and overrides.
+  _Jv_platform_initProperties (newprops);
+
+  // If java.library.path is set, tell libltdl so we search the new
+  // directories as well.
+  ::java::lang::String *path = newprops->getProperty(JvNewStringLatin1("java.library.path"));
+  if (path)
+    {
+      // Prepend GCJ_VERSIONED_LIBDIR to the module load path so that
+      // libgcj will find its own JNI libraries, like libgtkpeer.so.
+      char* val = PrependVersionedLibdir (path);
+      _Jv_SetDLLSearchPath (val);
+      _Jv_Free (val);
+    }
+  else
+    {
+      // Set a value for user code to see.
+#ifdef USE_LTDL
+      char *libpath = getenv (LTDL_SHLIBPATH_VAR);
+      char* val = _Jv_PrependVersionedLibdir (libpath);
+      SET ("java.library.path", val);
+      _Jv_SetDLLSearchPath (val);
+      _Jv_Free (val);
+#else
+      SET ("java.library.path", "");
+#endif
+    }
+
+  // If java.class.path is still not set then set it according to the
+  // CLASSPATH environment variable if given.  See gij.cc main () and
+  // prims.cc _Jv_CreateJavaVM () for all the ways this could have
+  // been set much earlier.
+  // If CLASSPATH isn't set or if the path is empty fall back to "."
+  path = newprops->getProperty(JvNewStringLatin1("java.class.path"));
+  if (!path)
+    {
+      char *classpath = getenv("CLASSPATH");
+      if (classpath && classpath[0] != 0)
+	{
+	  path = JvNewStringLatin1 (classpath);
+	  newprops->put(JvNewStringLatin1 ("java.class.path"), path);
+	}
+    }
+
+  if (!path || path->length() == 0)
+    SET ("java.class.path", ".");
+}
+
+jboolean
+gnu::classpath::SystemProperties::isWordsBigEndian (void)
+{
+  union
+  {
+    long lval;
+    char cval;
+  } u;
+
+  u.lval = 1;
+  return u.cval == 0;
+}
+