Mercurial > hg > graal-compiler
diff agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86RicochetFrame.java @ 3908:7588156f5cf9
7051798: SA-JDI: NPE in Frame.addressOfStackSlot(Frame.java:244)
Reviewed-by: kvn
author | never |
---|---|
date | Mon, 05 Sep 2011 17:09:05 -0700 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/runtime/x86/X86RicochetFrame.java Mon Sep 05 17:09:05 2011 -0700 @@ -0,0 +1,81 @@ +/* + * 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); + } +}