Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/code/Stub.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/code/Stub.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,74 @@ +/* + * Copyright 2000-2001 Sun Microsystems, Inc. All Rights Reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +package sun.jvm.hotspot.code; + +import java.io.*; +import sun.jvm.hotspot.code.*; +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.runtime.*; +import sun.jvm.hotspot.utilities.*; + +/** A port of the VM's Stub mechanism. Note that the separation of + Stub and StubInterface (done in the VM to save space) is not + currently necessary in these APIs and has been flattened so that + class Stub has virtual functions overridden by concrete + subclasses. */ + +public class Stub extends VMObject { + + public Stub(Address addr) { + super(addr); + } + + // NOTE (FIXME): initialize(int) / finalize() elided for now + + // + // General info/converters + // + + /** Must return the size provided by initialize */ + public long getSize() { Assert.that(false, "should not call this"); return 0; } + // NOTE (FIXME): code_size_to_size elided for now (would be a good reason for inserting the StubInterface abstraction) + /** Needed to add this for iteration */ + public Address getAddress() { return addr; } + + // + // Code info + // + + /** Points to the first byte of the code */ + public Address codeBegin() { Assert.that(false, "should not call this"); return null; } + /** Points to the first byte after the code */ + public Address codeEnd() { Assert.that(false, "should not call this"); return null; } + + // + // Debugging + // + + /** Verifies the Stub */ + public void verify() { Assert.that(false, "should not call this"); } + /** Prints some information about the stub */ + public void printOn(PrintStream tty) { Assert.that(false, "should not call this"); } +}