Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86RicochetFrame.java @ 3945:8ed53447f690
Merge
author | iveresov |
---|---|
date | Thu, 15 Sep 2011 12:44:09 -0700 |
parents | 7588156f5cf9 |
children |
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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.x86; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; public class X86RicochetFrame extends VMObject { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static void initialize(TypeDataBase db) { Type type = db.lookupType("MethodHandles::RicochetFrame"); senderLinkField = type.getAddressField("_sender_link"); savedArgsBaseField = type.getAddressField("_saved_args_base"); exactSenderSPField = type.getAddressField("_exact_sender_sp"); senderPCField = type.getAddressField("_sender_pc"); } private static AddressField senderLinkField; private static AddressField savedArgsBaseField; private static AddressField exactSenderSPField; private static AddressField senderPCField; static X86RicochetFrame fromFrame(X86Frame f) { return new X86RicochetFrame(f.getFP().addOffsetTo(- senderLinkField.getOffset())); } private X86RicochetFrame(Address addr) { super(addr); } public Address senderLink() { return senderLinkField.getValue(addr); } public Address senderLinkAddress() { return addr.addOffsetTo(senderLinkField.getOffset()); } public Address savedArgsBase() { return savedArgsBaseField.getValue(addr); } public Address extendedSenderSP() { return savedArgsBase(); } public Address exactSenderSP() { return exactSenderSPField.getValue(addr); } public Address senderPC() { return senderPCField.getValue(addr); } }