Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/runtime/vmSymbols.java @ 3962:cb315dc80374
7092278: "jmap -finalizerinfo" throws "sun.jvm.hotspot.utilities.AssertionFailure: invalid cp index 0 137"
Reviewed-by: kvn
author | never |
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date | Thu, 29 Sep 2011 09:53:56 -0700 |
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/* * Copyright (c) 2011, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ package sun.jvm.hotspot.runtime; import java.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.memory.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; public class vmSymbols { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static Address symbolsAddress; private static int FIRST_SID; private static int SID_LIMIT; private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type = db.lookupType("vmSymbols"); symbolsAddress = type.getAddressField("_symbols[0]").getStaticFieldAddress(); FIRST_SID = db.lookupIntConstant("vmSymbols::FIRST_SID"); SID_LIMIT = db.lookupIntConstant("vmSymbols::SID_LIMIT"); } public static Symbol symbolAt(int id) { if (id < FIRST_SID || id >= SID_LIMIT) throw new IndexOutOfBoundsException("bad SID " + id); return Symbol.create(symbolsAddress.getAddressAt(id * VM.getVM().getAddressSize())); } }