Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/opto/JVMState.java @ 19491:4d66c000d253
Truffle/Instrumentation: more cleanup in Probe
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Wed, 18 Feb 2015 18:30:49 -0800 |
parents | 52b4284cb496 |
children |
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/* * Copyright (c) 2011, 2012, 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.opto; import java.io.PrintStream; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.ci.*; import sun.jvm.hotspot.types.*; public class JVMState extends VMObject { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { Type type = db.lookupType("JVMState"); mapField = type.getAddressField("_map"); methodField = type.getAddressField("_method"); bciField = new CIntField(type.getCIntegerField("_bci"), 0); spField = new CIntField(type.getCIntegerField("_sp"), 0); endoffField = new CIntField(type.getCIntegerField("_endoff"), 0); try { scloffField = new CIntField(type.getCIntegerField("_scloff"), 0); } catch (Exception e) { } monoffField = new CIntField(type.getCIntegerField("_monoff"), 0); stkoffField = new CIntField(type.getCIntegerField("_stkoff"), 0); locoffField = new CIntField(type.getCIntegerField("_locoff"), 0); depthField = new CIntField(type.getCIntegerField("_depth"), 0); callerField = type.getAddressField("_caller"); } private static AddressField mapField; private static AddressField methodField; private static CIntField bciField; private static CIntField spField; private static CIntField endoffField; private static CIntField scloffField; private static CIntField monoffField; private static CIntField stkoffField; private static CIntField locoffField; private static CIntField depthField; private static AddressField callerField; public static JVMState create(Address addr) { if (addr == null) return null; return new JVMState(addr); } public JVMState(Address addr) { super(addr); } public ciMethod method() { return (ciMethod) ciObjectFactory.getMetadata(methodField.getValue(getAddress())); } public int bci() { return (int)bciField.getValue(getAddress()); } public int depth() { return (int)depthField.getValue(getAddress()); } public JVMState caller() { return create(callerField.getValue(getAddress())); } public void dumpSpec(PrintStream out) { ciMethod m = method(); if (m != null) { Method meth = m.method(); out.print(" " + meth.getMethodHolder().getName().asString().replace('/', '.') + "::" + meth.getName().asString() + " @ bci:" + bci()); } else { out.print(" runtime stub"); } if (caller() != null) caller().dumpSpec(out); } }