mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-02-24 00:49:30 +08:00
092b50e2d7
PR libgcj/12001: * gnu/gcj/runtime/VMClassLoader.java (VMClassLoader): Pass empty array to superclass. (init): Changed interface; add URLs here. (initialize): New static method. * prims.cc (_Jv_CreateJavaVM): Initialize ClassLoader here... (_Jv_RunMain): ... not here. Co-Authored-By: Tom Tromey <tromey@redhat.com> From-SVN: r75889
101 lines
2.7 KiB
Java
101 lines
2.7 KiB
Java
/* Copyright (C) 1999, 2001, 2002, 2003, 2004 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. */
|
|
|
|
/* Author: Kresten Krab Thorup <krab@gnu.org> */
|
|
|
|
package gnu.gcj.runtime;
|
|
|
|
import java.io.*;
|
|
import java.util.StringTokenizer;
|
|
import java.util.HashSet;
|
|
import java.net.URL;
|
|
|
|
public final class VMClassLoader extends java.net.URLClassLoader
|
|
{
|
|
private VMClassLoader ()
|
|
{
|
|
super (new URL[0]);
|
|
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))
|
|
{
|
|
// In case we ever want to change the default.
|
|
lib_control = LIB_FULL;
|
|
}
|
|
else
|
|
lib_control = LIB_FULL;
|
|
}
|
|
|
|
private void init()
|
|
{
|
|
StringTokenizer st
|
|
= new StringTokenizer (System.getProperty ("java.class.path", "."),
|
|
System.getProperty ("path.separator", ":"));
|
|
|
|
while (st.hasMoreElements ())
|
|
{
|
|
String e = st.nextToken ();
|
|
try
|
|
{
|
|
if (!e.endsWith (File.separator) && new File (e).isDirectory ())
|
|
addURL(new URL("file", "", -1, e + File.separator));
|
|
else
|
|
addURL(new URL("file", "", -1, e));
|
|
}
|
|
catch (java.net.MalformedURLException x)
|
|
{
|
|
/* Ignore this path element */
|
|
}
|
|
}
|
|
// Add core:/ to the end of the java.class.path so any resources
|
|
// compiled into this executable may be found.
|
|
try
|
|
{
|
|
addURL(new URL("core", "", -1, "/"));
|
|
}
|
|
catch (java.net.MalformedURLException x)
|
|
{
|
|
// This should never happen.
|
|
}
|
|
}
|
|
|
|
/** This is overridden to search the internal hash table, which
|
|
* will only search existing linked-in classes. This will make
|
|
* the default implementation of loadClass (in ClassLoader) work right.
|
|
* The implementation of this method is in java/lang/natClassLoader.cc.
|
|
*/
|
|
protected native Class findClass(String name)
|
|
throws java.lang.ClassNotFoundException;
|
|
|
|
// This can be package-private because we only call it from native
|
|
// code during startup.
|
|
static void initialize ()
|
|
{
|
|
instance.init();
|
|
}
|
|
|
|
// This keeps track of shared libraries we've already tried to load.
|
|
private HashSet tried_libraries = new HashSet();
|
|
|
|
// Holds one of the LIB_* constants; used to determine how shared
|
|
// library loads are done.
|
|
private int lib_control;
|
|
|
|
// The only VMClassLoader that can exist.
|
|
static VMClassLoader instance = new VMClassLoader();
|
|
|
|
private static final int LIB_FULL = 0;
|
|
private static final int LIB_CACHE = 1;
|
|
private static final int LIB_NEVER = 2;
|
|
}
|