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
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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, 348 insertions, 0 deletions

diff --git a/libjava/java/lang/VMClassLoader.java b/libjava/java/lang/VMClassLoader.java
new file mode 100644
index 000000000..21019b757
--- /dev/null
+++ b/libjava/java/lang/VMClassLoader.java
@@ -0,0 +1,348 @@
+/* VMClassLoader.java -- Reference implementation of native interface
+   required by ClassLoader
+   Copyright (C) 1998, 2001, 2002, 2003, 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 java.lang;
+
+import gnu.java.util.EmptyEnumeration;
+import java.lang.reflect.Constructor;
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.security.AllPermission;
+import java.security.Permission;
+import java.security.Permissions;
+import java.security.ProtectionDomain;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.StringTokenizer;
+import gnu.gcj.runtime.BootClassLoader;
+
+/**
+ * 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
+{
+  // Protection Domain definitions 
+  // FIXME: should there be a special protection domain used for native code?
+  
+  // The permission required to check what a classes protection domain is.
+  static final Permission protectionDomainPermission
+    = new RuntimePermission("getProtectionDomain");
+  // The protection domain returned if we cannot determine it. 
+  static ProtectionDomain unknownProtectionDomain;
+
+  static
+  {
+    Permissions permissions = new Permissions();
+    permissions.add(new AllPermission());
+    unknownProtectionDomain = new ProtectionDomain(null, permissions);  
+  }
+
+  static final HashMap definedPackages = new HashMap();
+
+  // This is a helper for handling java.endorsed.dirs.  It is null
+  // until we've initialized the system, at which point it is created.
+  static BootClassLoader bootLoader;
+
+  // This keeps track of shared libraries we've already tried to load.
+  private static HashSet tried_libraries;
+
+  // Holds one of the LIB_* constants; used to determine how shared
+  // library loads are done.
+  private static int lib_control;
+
+  private static final int LIB_FULL = 0;
+  private static final int LIB_CACHE = 1;
+  private static final int LIB_NEVER = 2;
+
+  /**
+   * Helper to define a class using a string of bytes. This assumes that
+   * the security checks have already been performed, if necessary.
+   *
+   * <strong>For backward compatibility, this just ignores the protection
+   * domain; that is the wrong behavior, and you should directly implement
+   * this method natively if you can.</strong>
+   *
+   * @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 void resolveClass(Class clazz)
+  {
+    // There doesn't seem to be a need for this to do anything.
+    // Testing reveals that the JDK doesn't seem to do anything here,
+    // either.
+  }
+
+  /**
+   * 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.
+   *
+   * In libgcj, this does nothing, as the default system loader knows
+   * how to find resources that have been linked in.
+   *
+   * @param name the resource to find
+   * @return the URL to the resource
+   */
+  static URL getResource(String name)
+  {
+    if (bootLoader != null)
+      return bootLoader.bootGetResource(name);
+    return null;
+  }
+
+  /**
+   * Helper to get a list of resources from the bootstrap class loader.
+   *
+   * In libgcj, this does nothing, as the default system loader knows
+   * how to find resources that have been linked in.
+   *
+   * @param name the resource to find
+   * @return an enumeration of resources
+   * @throws IOException if one occurs
+   */
+  static Enumeration getResources(String name) throws IOException
+  {
+    if (bootLoader != null)
+      return bootLoader.bootGetResources(name);
+    return EmptyEnumeration.getInstance();
+  }
+
+  /**
+   * Helper to get a package from the bootstrap class loader.  The default
+   * implementation of returning null may be adequate, or you may decide
+   * that this needs some native help.
+   *
+   * @param name the name to find
+   * @return the named package, if it exists
+   */
+  static synchronized Package getPackage(String name)
+  {
+    return (Package) definedPackages.get(name);
+  }
+
+  /**
+   * Helper to get all packages from the bootstrap class loader.  The default
+   * implementation of returning an empty array may be adequate, or you may
+   * decide that this needs some native help.
+   *
+   * @return all named packages, if any exist
+   */
+  static synchronized Package[] getPackages()
+  {
+    Package[] packages = new Package[definedPackages.size()];
+    return (Package[]) definedPackages.values().toArray(packages);
+  }
+
+  // Define a package for something loaded natively.
+  static synchronized void definePackageForNative(String className)
+  {
+    int lastDot = className.lastIndexOf('.');
+    if (lastDot != -1)
+      {
+	String packageName = className.substring(0, lastDot);
+	if (getPackage(packageName) == null)
+	  {
+	    // FIXME: this assumes we're defining the core, which
+	    // isn't necessarily so.  We could detect this and set up
+	    // appropriately.  We could also look at a manifest file
+	    // compiled into the .so.
+	    Package p = new Package(packageName,
+				    "Java Platform API Specification",
+				    "GNU", "1.4", "gcj", "GNU",
+				    null, // FIXME: gcj version.
+				    null);
+	    definedPackages.put(packageName, p);
+	  }
+      }
+  }
+
+  /**
+   * 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 native ClassLoader getSystemClassLoaderInternal();
+
+  static native void initBootLoader(String libdir);
+
+  static void initialize(String libdir)
+  {
+    initBootLoader(libdir);
+
+    String p
+      = System.getProperty ("gnu.gcj.runtime.VMClassLoader.library_control",
+			    "");
+    if ("never".equals(p))
+      lib_control = LIB_NEVER;
+    else if ("cache".equals(p))
+      lib_control = LIB_CACHE;
+    else if ("full".equals(p))
+      lib_control = LIB_FULL;
+    else
+      lib_control = LIB_NEVER;
+
+    tried_libraries = new HashSet();
+  }
+
+  /**
+   * Possibly load a .so and search it for classes.
+   */
+  static native Class nativeFindClass(String name);
+
+  static ClassLoader getSystemClassLoader()
+  {
+    // This method is called as the initialization of systemClassLoader,
+    // so if there is a null value, this is the first call and we must check
+    // for java.system.class.loader.
+    String loader = System.getProperty("java.system.class.loader");
+    ClassLoader default_sys = getSystemClassLoaderInternal();
+    if (loader != null)
+      {
+	try
+	  {
+	    Class load_class = Class.forName(loader, true, default_sys);
+	    Constructor c
+	      = load_class.getConstructor(new Class[] { ClassLoader.class });
+	    default_sys
+	      = (ClassLoader) c.newInstance(new Object[] { default_sys });
+	  }
+	catch (Exception ex)
+	  {
+	    throw new Error("Failed to load requested system classloader "
+			       + loader, ex);
+	  }
+      }
+
+    return default_sys;
+  }
+}