obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

4 files changed, 423 insertions, 0 deletions

diff --git a/libjava/classpath/java/rmi/dgc/DGC.java b/libjava/classpath/java/rmi/dgc/DGC.java
new file mode 100644
index 000000000..5ec874a5e
--- /dev/null
+++ b/libjava/classpath/java/rmi/dgc/DGC.java
@@ -0,0 +1,80 @@
+/* DGC.java --
+   Copyright (c) 1996, 1997, 1998, 1999 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
+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 java.rmi.dgc;
+
+import java.rmi.Remote;
+import java.rmi.RemoteException;
+import java.rmi.server.ObjID;
+
+/**
+ * The DGC implementation is used for the server side during the distributed
+ * garbage collection. This interface contains the two methods: dirty and clean.
+ * A dirty call is made when a remote reference is unmarshaled in a client. A
+ * corresponding clean call is made by client it no longer uses that remote
+ * reference. A reference to a remote object is also automatically released
+ * after so called lease period that starts after the dirty call is received. It
+ * is the client's responsibility to renew the leases, by making additional
+ * dirty calls before such leases expire.
+ */
+public interface DGC
+    extends Remote
+{
+  /**
+   * Mark the given objects referecnes as used on the client side.
+   *
+   * @param ids the ids of the used objects.
+   * @param sequenceNum the number of the call (used to detect and discard late
+   *          calls).
+   * @param lease the requested lease
+   * @return the granted lease
+   */
+  Lease dirty(ObjID[] ids, long sequenceNum, Lease lease)
+      throws RemoteException;
+
+  /**
+   * Mark the given objects as no longer used on the client side.
+   *
+   * @param ids the ids of the objects that are no longer used.
+   * @param sequenceNum the number of the call (used to detect and discard late
+   * @param vmid the VMID of the client.
+   * @param strong make the "strong" clean call ("strong" calls are scheduled
+   * after the failed dirty calls).
+   */
+  void clean(ObjID[] ids, long sequenceNum, VMID vmid, boolean strong)
+      throws RemoteException;
+}
diff --git a/libjava/classpath/java/rmi/dgc/Lease.java b/libjava/classpath/java/rmi/dgc/Lease.java
new file mode 100644
index 000000000..58b82cf58
--- /dev/null
+++ b/libjava/classpath/java/rmi/dgc/Lease.java
@@ -0,0 +1,100 @@
+/* Lease.java
+   Copyright (c) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+   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
+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 java.rmi.dgc;
+
+import java.io.Serializable;
+
+/**
+ * A lease object is used to request and grant leases for the remote objects. It
+ * contains the lease duration and the unique VM indentifier.
+ */
+public final class Lease
+    implements Serializable
+{
+
+  static final long serialVersionUID = - 5713411624328831948L;
+
+  private VMID vmid;
+
+  private long value;
+
+  /**
+   * Create the new lease with the given id and duration
+   *
+   * @param id the lease id
+   * @param duration the lease duration
+   */
+  public Lease(VMID id, long duration)
+  {
+    vmid = id;
+    value = duration;
+  }
+
+  /**
+   * Get the lease id.
+   *
+   * @return the lease id
+   */
+  public VMID getVMID()
+  {
+    return (vmid);
+  }
+
+  /**
+   * Get the lease duration
+   *
+   * @return the lease duration
+   */
+  public long getValue()
+  {
+    return (value);
+  }
+
+  /**
+   * Get the string representation of this lease
+   *
+   * @return the string represenation (lease id, followed by the lease
+   *         duration).
+   */
+  public String toString()
+  {
+    return ("[" + vmid.toString() + ", " + Long.toString(value) + "]");
+  }
+
+}
diff --git a/libjava/classpath/java/rmi/dgc/VMID.java b/libjava/classpath/java/rmi/dgc/VMID.java
new file mode 100644
index 000000000..925c1bfb1
--- /dev/null
+++ b/libjava/classpath/java/rmi/dgc/VMID.java
@@ -0,0 +1,191 @@
+/* VMID.java -- The object ID, unique between all virtual machines.
+   Copyright (c) 1996, 1997, 1998, 1999, 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
+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 java.rmi.dgc;
+
+import gnu.java.lang.CPStringBuilder;
+
+import java.io.Serializable;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.rmi.server.UID;
+import java.util.Arrays;
+
+/**
+ * An identifier that is unique accross the all virtual machines. This class is
+ * used by distributed garbage collector to identify the virtual machine of
+ * the client, but may also be used in various other cases, when such identifier
+ * is required. This class separately stores and transfers the host IP
+ * address, but will try to do its best also for the case if it failed to
+ * determine it. The alternative algorithms are used in {@link UID} that is
+ * part of this class. The VMID's, created on the same host, but in the two
+ * separately (parallely) running virtual machines are different.
+ */
+public final class VMID implements Serializable
+{
+  /**
+   * Use SVUID for interoperability.
+   */
+  static final long serialVersionUID = -538642295484486218L;
+
+  /**
+   * If true, the IP of this host can ve reliably determined.
+   */
+  static boolean areWeUnique;
+
+  /**
+   * The IP address of the local host.
+   */
+  static byte[] localAddr;
+
+  /**
+   * The IP address of the local host.
+   */
+  private byte[] addr;
+
+  /**
+   * The cached hash code.
+   */
+  transient int hash;
+
+  /**
+   * The UID of this VMID.
+   */
+  private UID uid;
+
+  static
+    {
+      // This "local host" value usually indicates that the local
+      // IP address cannot be reliably determined.
+      byte[] localHost = new byte[] { 127, 0, 0, 1 };
+
+      try
+        {
+          localAddr = InetAddress.getLocalHost().getAddress();
+          areWeUnique = !Arrays.equals(localHost, localAddr);
+        }
+      catch (UnknownHostException uhex)
+        {
+          localAddr = localHost;
+          areWeUnique = false;
+        }
+    }
+
+  /**
+   * Create the new VMID. All VMID's are unique accross tha all virtual
+   * machines.
+   */
+  public VMID()
+  {
+    addr = localAddr;
+    uid = new UID();
+  }
+
+  /**
+   * Return true if it is possible to get the accurate address of this host.
+   * If false is returned, the created VMID's are less reliable, but the
+   * starting time and possibly the memory allocation are also taken into
+   * consideration in the incorporated UID. Hence the VMID's, created on the
+   * different virtual machines, still should be different.
+   *
+   * @deprecated VMID's are more or less always reliable.
+   *
+   * @return false if the local host ip address is 127.0.0.1 or unknown,
+   * true otherwise.
+   */
+  public static boolean isUnique ()
+  {
+    return areWeUnique;
+  }
+
+  /**
+   * Get the hash code of this VMID.
+   */
+  public int hashCode ()
+  {
+    if (hash==0)
+      {
+        for (int i = 0; i < localAddr.length; i++)
+            hash += addr[i];
+        hash = hash ^ uid.hashCode();
+      }
+    return hash;
+  }
+
+  /**
+   * Returns true if the passed parameter is also VMID and it is equal to this
+   * VMID. The VMID should only be equal to itself (also if the passed value is
+   * another instance, cloned by serialization).
+   */
+  public boolean equals(Object obj)
+  {
+    if (obj instanceof VMID)
+      {
+        VMID other = (VMID) obj;
+
+        // The UID's are compared faster than arrays.
+        return uid.equals(other.uid) && Arrays.equals(addr, other.addr);
+      }
+    else
+      return false;
+
+  }
+
+  /**
+   * Get the string representation of this VMID.
+   */
+  public String toString ()
+  {
+    CPStringBuilder buf = new CPStringBuilder ("[VMID: ");
+
+    for (int i = 0; i < addr.length; i++)
+      {
+        if (i > 0)
+          {
+            buf.append (".");
+          }
+
+        buf.append (Integer.toString (addr [i]));
+      }
+
+    buf.append (" ");
+    buf.append (uid.toString ());
+    buf.append ("]");
+
+    return buf.toString();
+  }
+}
diff --git a/libjava/classpath/java/rmi/dgc/package.html b/libjava/classpath/java/rmi/dgc/package.html
new file mode 100644
index 000000000..7f0a2081c
--- /dev/null
+++ b/libjava/classpath/java/rmi/dgc/package.html
@@ -0,0 +1,52 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
+<!-- package.html - describes classes in java.rmi.dgc package.
+   Copyright (C) 2002, 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
+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. -->
+
+<html>
+<head><title>GNU Classpath - java.rmi.dgc</title></head>
+
+<body>
+The Distributed Garbage Collector (DGC). The DGC is reponsible for keeping all
+locally created and exported remote objects as long as they are referenced
+by some remote clients. The client must periodically notify the server that
+it still wants to keep the remote object on the server side. The client
+notifies the server by calling methods, defined in the DGC interface. 
+Other classes in this package define the parameters that are used in this
+interface. The DGC object of some host can be found and accessed by its  
+object identifier (ObjID.DGC_ID), without involving the name service.
+</body>
+</html>