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
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1 files changed, 272 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/crypto/assembly/Assembly.java b/libjava/classpath/gnu/javax/crypto/assembly/Assembly.java
new file mode 100644
index 000000000..f570d2012
--- /dev/null
+++ b/libjava/classpath/gnu/javax/crypto/assembly/Assembly.java
@@ -0,0 +1,272 @@
+/* Assembly.java --
+   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+
+This file is a 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 of the License, 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; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, 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.javax.crypto.assembly;
+
+import java.util.Map;
+
+/**
+ * An <code>Assembly</code> is a construction consisting of a chain of
+ * {@link Transformer} elements; each wired in pre- or post- transformation
+ * mode. This chain is terminated by one <code>LoopbackTransformer</code>
+ * element.
+ * <p>
+ * Once constructed, and correctly initialised, the bulk of the methods
+ * available on the <code>Assembly</code> are delegated to the <i>head</i> of
+ * the {@link Transformer} chain of the <code>Assembly</code>.
+ *
+ * @see Transformer
+ */
+public class Assembly
+{
+  public static final String DIRECTION = "gnu.crypto.assembly.assembly.direction";
+
+  /** Flag that tells if the instance is initialised or not; and if yes how. */
+  private Direction wired;
+
+  /** The first Transformer in the chain. */
+  private Transformer head;
+
+  /**
+   * Trivial constructor that sets the <i>chain</i> to a
+   * <code>LoopbackTransformer</code>.
+   */
+  public Assembly()
+  {
+    super();
+
+    wired = null;
+    head = new LoopbackTransformer();
+  }
+
+  /**
+   * Adds the designated {@link Transformer} and signals that it should operate
+   * in pre-processing mode; i.e. it should apply its internal transformation
+   * algorithm on the input data stream, <b>before</b> it passes that stream to
+   * the next element in the <i>chain</i>.
+   *
+   * @param t the {@link Transformer} to add at the head of the current chain.
+   * @throws IllegalArgumentException if the designated {@link Transformer} has
+   *           a non-null tail; i.e. it is already an element of a chain.
+   */
+  public void addPreTransformer(Transformer t)
+  {
+    wireTransformer(t, Operation.PRE_PROCESSING);
+  }
+
+  /**
+   * Adds the designated {@link Transformer} and signals that it should operate
+   * in post-processing mode; i.e. it should apply its internal transformation
+   * algorithm on the input data stream, <b>after</b> it passes that stream to
+   * the next element in the <i>chain</i>.
+   *
+   * @param t the {@link Transformer} to add at the head of the current chain.
+   * @throws IllegalArgumentException if the designated {@link Transformer} has
+   *           a non-null tail; i.e. it is already an element of a chain.
+   */
+  public void addPostTransformer(Transformer t)
+  {
+    wireTransformer(t, Operation.POST_PROCESSING);
+  }
+
+  /**
+   * Initialises the <code>Assembly</code> for operation with specific
+   * characteristics.
+   *
+   * @param attributes a set of name-value pairs that describes the desired
+   *          future behaviour of this instance.
+   * @throws IllegalStateException if the instance is already initialised.
+   */
+  public void init(Map attributes) throws TransformerException
+  {
+    if (wired != null)
+      throw new IllegalStateException();
+    Direction flow = (Direction) attributes.get(DIRECTION);
+    if (flow == null)
+      flow = Direction.FORWARD;
+    attributes.put(Transformer.DIRECTION, flow);
+    head.init(attributes);
+    wired = flow;
+  }
+
+  /**
+   * Resets the <code>Assembly</code> for re-initialisation and use with other
+   * characteristics. This method always succeeds.
+   */
+  public void reset()
+  {
+    head.reset();
+    wired = null;
+  }
+
+  /**
+   * Convenience method that calls the method with same name and three
+   * arguments, using a byte array of length <code>1</code> whose contents are
+   * the designated byte.
+   *
+   * @param b the byte to process.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   * @see #update(byte[], int, int)
+   */
+  public byte[] update(byte b) throws TransformerException
+  {
+    return update(new byte[] { b }, 0, 1);
+  }
+
+  /**
+   * Convenience method that calls the method with same name and three
+   * arguments. All bytes in <code>in</code>, starting from index position
+   * <code>0</code> are considered.
+   *
+   * @param in the input data bytes.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   * @see #update(byte[], int, int)
+   */
+  public byte[] update(byte[] in) throws TransformerException
+  {
+    return update(in, 0, in.length);
+  }
+
+  /**
+   * Processes a designated number of bytes from a given byte array.
+   *
+   * @param in the input data bytes.
+   * @param offset index of <code>in</code> from which to start considering
+   *          data.
+   * @param length the count of bytes to process.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   */
+  public byte[] update(byte[] in, int offset, int length)
+      throws TransformerException
+  {
+    if (wired == null)
+      throw new IllegalStateException();
+    return head.update(in, offset, length);
+  }
+
+  /**
+   * Convenience method that calls the method with same name and three arguments
+   * using a 0-long byte array.
+   *
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   * @see #lastUpdate(byte[], int, int)
+   */
+  public byte[] lastUpdate() throws TransformerException
+  {
+    return lastUpdate(new byte[0], 0, 0);
+  }
+
+  /**
+   * Convenience method that calls the method with same name and three
+   * arguments, using a byte array of length <code>1</code> whose contents are
+   * the designated byte.
+   *
+   * @param b the byte to process.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   * @see #lastUpdate(byte[], int, int)
+   */
+  public byte[] lastUpdate(byte b) throws TransformerException
+  {
+    return lastUpdate(new byte[] { b }, 0, 1);
+  }
+
+  /**
+   * Convenience method that calls the method with same name and three
+   * arguments. All bytes in <code>in</code>, starting from index position
+   * <code>0</code> are considered.
+   *
+   * @param in the input data bytes.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   * @see #lastUpdate(byte[], int, int)
+   */
+  public byte[] lastUpdate(byte[] in) throws TransformerException
+  {
+    return lastUpdate(in, 0, in.length);
+  }
+
+  /**
+   * Processes a designated number of bytes from a given byte array and signals,
+   * at the same time, that this is the last <i>push</i> operation for this
+   * <code>Assembly</code>.
+   *
+   * @param in the input data bytes.
+   * @param offset index of <code>in</code> from which to start considering
+   *          data.
+   * @param length the count of bytes to process.
+   * @return the result of transformation.
+   * @throws IllegalStateException if the instance is not initialised.
+   * @throws TransformerException if a transformation-related exception occurs
+   *           during the operation.
+   */
+  public byte[] lastUpdate(byte[] in, int offset, int length)
+      throws TransformerException
+  {
+    if (wired == null)
+      throw new IllegalStateException();
+    byte[] result = head.lastUpdate(in, offset, length);
+    reset();
+    return result;
+  }
+
+  private void wireTransformer(Transformer t, Operation mode)
+  {
+    if (t.tail != null)
+      throw new IllegalArgumentException();
+    t.setMode(mode);
+    t.tail = head;
+    head = t;
+  }
+}