| /* |
| * 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.opto; |
| |
| import java.util.*; |
| import java.io.PrintStream; |
| import sun.jvm.hotspot.debugger.*; |
| import sun.jvm.hotspot.runtime.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.types.*; |
| |
| public class MachSafePointNode extends MachReturnNode { |
| 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("MachSafePointNode"); |
| jvmsField = type.getAddressField("_jvms"); |
| jvmadjField = new CIntField(type.getCIntegerField("_jvmadj"), 0); |
| } |
| |
| private static AddressField jvmsField; |
| private static CIntField jvmadjField; |
| |
| public MachSafePointNode(Address addr) { |
| super(addr); |
| } |
| |
| public JVMState jvms() { |
| return JVMState.create(jvmsField.getValue(getAddress())); |
| } |
| |
| public void dumpSpec(PrintStream out) { |
| try { |
| JVMState jvms = jvms(); |
| if (jvms != null) out.print(" !"); |
| if (jvms == null) out.print("empty jvms"); |
| while (jvms != null) { |
| Method m = jvms.method().method(); |
| int bci = jvms.bci(); |
| out.print(" " + m.getMethodHolder().getName().asString().replace('/', '.') + "::" + m.getName().asString() + " @ bci:" + bci); |
| jvms = jvms.caller(); |
| } |
| } catch (Exception e) { |
| out.print(e); |
| } |
| } |
| } |