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.

1 files changed, 431 insertions, 0 deletions

diff --git a/libjava/classpath/vm/reference/java/lang/VMClassLoader.java b/libjava/classpath/vm/reference/java/lang/VMClassLoader.java
new file mode 100644
index 000000000..c1d462588
--- /dev/null
+++ b/libjava/classpath/vm/reference/java/lang/VMClassLoader.java
@@ -0,0 +1,431 @@
+/* VMClassLoader.java -- Reference implementation of native interface
+   required by ClassLoader
+   Copyright (C) 1998, 2001, 2002, 2004, 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
+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.lang;
+
+import gnu.classpath.Configuration;
+import gnu.classpath.SystemProperties;
+import gnu.java.lang.InstrumentationImpl;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.lang.instrument.Instrumentation;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.ProtectionDomain;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.StringTokenizer;
+import java.util.Vector;
+import java.util.zip.ZipFile;
+
+/**
+ * java.lang.VMClassLoader is a package-private helper for VMs to implement
+ * on behalf of java.lang.ClassLoader.
+ *
+ * @author John Keiser
+ * @author Mark Wielaard (mark@klomp.org)
+ * @author Eric Blake (ebb9@email.byu.edu)
+ */
+final class VMClassLoader
+{
+
+
+  /** packages loaded by the bootstrap class loader */
+  static final HashMap definedPackages = new HashMap();
+
+  /** jars from property java.boot.class.path */
+  static final HashMap bootjars = new HashMap();
+
+
+  /**
+   * Converts the array string of native package names to
+   * Packages. The packages are then put into the
+   * definedPackages hashMap
+   */
+  static
+  {
+    String[] packages = getBootPackages();
+
+    if( packages != null)
+      {
+        String specName =
+              SystemProperties.getProperty("java.specification.name");
+        String vendor =
+              SystemProperties.getProperty("java.specification.vendor");
+        String version =
+              SystemProperties.getProperty("java.specification.version");
+
+        Package p;
+
+        for(int i = 0; i < packages.length; i++)
+          {
+            p = new Package(packages[i],
+                  specName,
+                  vendor,
+                  version,
+                  "GNU Classpath",
+                  "GNU",
+                  Configuration.CLASSPATH_VERSION,
+                  null,
+                  null);
+
+            definedPackages.put(packages[i], p);
+          }
+      }
+  }
+
+
+  /**
+   * Helper to define a class using a string of bytes. This assumes that
+   * the security checks have already been performed, if necessary.
+   *
+   * Implementations of this method are advised to consider the
+   * situation where user code modifies the byte array after it has
+   * been passed to defineClass.  This can be handled by making a
+   * private copy of the array, or arranging to only read any given
+   * byte a single time.
+   *
+   * @param name the name to give the class, or null if unknown
+   * @param data the data representing the classfile, in classfile format
+   * @param offset the offset into the data where the classfile starts
+   * @param len the length of the classfile data in the array
+   * @param pd the protection domain
+   * @return the class that was defined
+   * @throws ClassFormatError if data is not in proper classfile format
+   */
+  static final native Class defineClass(ClassLoader cl, String name,
+                                 byte[] data, int offset, int len,
+                                 ProtectionDomain pd)
+    throws ClassFormatError;
+
+  /**
+   * Helper to resolve all references to other classes from this class.
+   *
+   * @param c the class to resolve
+   */
+  static final native void resolveClass(Class c);
+
+  /**
+   * Helper to load a class from the bootstrap class loader.
+   *
+   * @param name the class name to load
+   * @param resolve whether to resolve it
+   * @return the class, loaded by the bootstrap classloader or null
+   * if the class wasn't found. Returning null is equivalent to throwing
+   * a ClassNotFoundException (but a possible performance optimization).
+   */
+  static final native Class loadClass(String name, boolean resolve)
+    throws ClassNotFoundException;
+
+  /**
+   * Helper to load a resource from the bootstrap class loader.
+   *
+   * @param name the resource to find
+   * @return the URL to the resource
+   */
+  static URL getResource(String name)
+  {
+    Enumeration e = getResources(name);
+    if (e.hasMoreElements())
+      return (URL)e.nextElement();
+    return null;
+  }
+  /**
+   * Helper to get a list of resources from the bootstrap class loader.
+   *
+   * @param name the resource to find
+   * @return an enumeration of resources
+   */
+  static Enumeration getResources(String name)
+  {
+    StringTokenizer st = new StringTokenizer(
+      SystemProperties.getProperty("java.boot.class.path", "."),
+      File.pathSeparator);
+    Vector v = new Vector();
+    while (st.hasMoreTokens())
+      {
+        File file = new File(st.nextToken());
+        if (file.isDirectory())
+          {
+            try
+              {
+                File f = new File(file, name);
+                if (!f.exists()) continue;
+                v.add(new URL("file://" + f.getAbsolutePath()));
+              }
+            catch (MalformedURLException e)
+              {
+                throw new Error(e);
+              }
+          }
+        else if (file.isFile())
+          {
+            ZipFile zip;
+            synchronized(bootjars)
+              {
+                zip = (ZipFile) bootjars.get(file.getName());
+              }
+            if(zip == null)
+              {
+                try
+                  {
+                    zip = new ZipFile(file);
+                    synchronized(bootjars)
+                      {
+                        bootjars.put(file.getName(), zip);
+                      }
+                  }
+                catch (IOException e)
+                  {
+                    continue;
+                  }
+              }
+            String zname = name.startsWith("/") ? name.substring(1) : name;
+            if (zip.getEntry(zname) == null)
+              continue;
+            try
+              {
+                v.add(new URL("jar:file://"
+                  + file.getAbsolutePath() + "!/" + zname));
+              }
+            catch (MalformedURLException e)
+              {
+                throw new Error(e);
+              }
+          }
+      }
+    return v.elements();
+  }
+
+
+  /**
+   * Returns a String[] of native package names. The default
+   * implementation tries to load a list of package from
+   * the META-INF/INDEX.LIST file in the boot jar file.
+   * If not found or if any exception is raised, it returns
+   * an empty array. You may decide this needs native help.
+   */
+  private static String[] getBootPackages()
+  {
+    URL indexList = getResource("META-INF/INDEX.LIST");
+    if (indexList != null)
+      {
+        try
+          {
+            Set packageSet = new HashSet();
+            String line;
+            int lineToSkip = 3;
+            BufferedReader reader = new BufferedReader(
+                                                       new InputStreamReader(
+                                                                             indexList.openStream()));
+            while ((line = reader.readLine()) != null)
+              {
+                if (lineToSkip == 0)
+                  {
+                    if (line.length() == 0)
+                      lineToSkip = 1;
+                    else
+                      packageSet.add(line.replace('/', '.'));
+                  }
+                else
+                  lineToSkip--;
+              }
+            reader.close();
+            return (String[]) packageSet.toArray(new String[packageSet.size()]);
+          }
+        catch (IOException e)
+          {
+            return new String[0];
+          }
+      }
+    else
+      return new String[0];
+  }
+
+
+  /**
+   * Helper to get a package from the bootstrap class loader.
+   *
+   * @param name the name to find
+   * @return the named package, if it exists
+   */
+  static Package getPackage(String name)
+  {
+    return (Package)definedPackages.get(name);
+  }
+
+
+
+  /**
+   * Helper to get all packages from the bootstrap class loader.
+   *
+   * @return all named packages, if any exist
+   */
+  static Package[] getPackages()
+  {
+    Package[] packages = new Package[definedPackages.size()];
+    definedPackages.values().toArray(packages);
+    return packages;
+  }
+
+  /**
+   * Helper for java.lang.Integer, Byte, etc to get the TYPE class
+   * at initialization time. The type code is one of the chars that
+   * represents the primitive type as in JNI.
+   *
+   * <ul>
+   * <li>'Z' - boolean</li>
+   * <li>'B' - byte</li>
+   * <li>'C' - char</li>
+   * <li>'D' - double</li>
+   * <li>'F' - float</li>
+   * <li>'I' - int</li>
+   * <li>'J' - long</li>
+   * <li>'S' - short</li>
+   * <li>'V' - void</li>
+   * </ul>
+   *
+   * @param type the primitive type
+   * @return a "bogus" class representing the primitive type
+   */
+  static final native Class getPrimitiveClass(char type);
+
+  /**
+   * The system default for assertion status. This is used for all system
+   * classes (those with a null ClassLoader), as well as the initial value for
+   * every ClassLoader's default assertion status.
+   *
+   * XXX - Not implemented yet; this requires native help.
+   *
+   * @return the system-wide default assertion status
+   */
+  static final boolean defaultAssertionStatus()
+  {
+    return true;
+  }
+
+  /**
+   * The system default for package assertion status. This is used for all
+   * ClassLoader's packageAssertionStatus defaults. It must be a map of
+   * package names to Boolean.TRUE or Boolean.FALSE, with the unnamed package
+   * represented as a null key.
+   *
+   * XXX - Not implemented yet; this requires native help.
+   *
+   * @return a (read-only) map for the default packageAssertionStatus
+   */
+  static final Map packageAssertionStatus()
+  {
+    return new HashMap();
+  }
+
+  /**
+   * The system default for class assertion status. This is used for all
+   * ClassLoader's classAssertionStatus defaults. It must be a map of
+   * class names to Boolean.TRUE or Boolean.FALSE
+   *
+   * XXX - Not implemented yet; this requires native help.
+   *
+   * @return a (read-only) map for the default classAssertionStatus
+   */
+  static final Map classAssertionStatus()
+  {
+    return new HashMap();
+  }
+
+  static ClassLoader getSystemClassLoader()
+  {
+    return ClassLoader.defaultGetSystemClassLoader();
+  }
+
+  /**
+   * Find the class if this class loader previously defined this class
+   * or if this class loader has been recorded as the initiating class loader
+   * for this class.
+   */
+  static native Class findLoadedClass(ClassLoader cl, String name);
+
+  /**
+   * The Instrumentation object created by the vm when agents are defined.
+   */
+  static final Instrumentation instrumenter = null;
+
+  /**
+   * Call the transformers of the possible Instrumentation object. This
+   * implementation assumes the instrumenter is a
+   * <code>InstrumentationImpl</code> object. VM implementors would
+   * have to redefine this method if they provide their own implementation
+   * of the <code>Instrumentation</code> interface.
+   *
+   * @param loader the initiating loader
+   * @param name the name of the class
+   * @param data the data representing the classfile, in classfile format
+   * @param offset the offset into the data where the classfile starts
+   * @param len the length of the classfile data in the array
+   * @param pd the protection domain
+   * @return the new data representing the classfile
+   */
+  static final Class defineClassWithTransformers(ClassLoader loader,
+      String name, byte[] data, int offset, int len, ProtectionDomain pd)
+  {
+
+    if (instrumenter != null)
+      {
+        byte[] modifiedData = new byte[len];
+        System.arraycopy(data, offset, modifiedData, 0, len);
+        String jvmName = name.replace('.', '/');
+        modifiedData =
+          ((InstrumentationImpl)instrumenter).callTransformers(loader, jvmName,
+            null, pd, modifiedData);
+
+        return defineClass(loader, name, modifiedData, 0, modifiedData.length,
+            pd);
+      }
+    else
+      {
+        return defineClass(loader, name, data, offset, len, pd);
+      }
+  }
+}