Mercurial > hg > truffle
diff agent/src/share/classes/sun/jvm/hotspot/code/ObjectValue.java @ 818:b109e761e927
6837472: com/sun/jdi/MonitorFrameInfo.java fails with AggressiveOpts in 6u14
Summary: Disable escape analysis when jvmti/debugger is used. Add support for EA ibto SA.
Reviewed-by: never
author | kvn |
---|---|
date | Tue, 09 Jun 2009 16:19:10 -0700 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/code/ObjectValue.java Tue Jun 09 16:19:10 2009 -0700 @@ -0,0 +1,93 @@ +/* + * Copyright 2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +package sun.jvm.hotspot.code; + +import java.io.*; +import java.util.*; + +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.utilities.*; + +/** An ObjectValue describes an object eliminated by escape analysis. */ + +public class ObjectValue extends ScopeValue { + private int id; + private ScopeValue klass; + private List fieldsValue; // ArrayList<ScopeValue> + + // Field "boolean visited" is not implemented here since + // it is used only a during debug info creation. + + public ObjectValue(int id) { + this.id = id; + klass = null; + fieldsValue = new ArrayList(); + } + + public boolean isObject() { return true; } + public int id() { return id; } + public ScopeValue getKlass() { return klass; } + public List getFieldsValue() { return fieldsValue; } + public ScopeValue getFieldAt(int i) { return (ScopeValue)fieldsValue.get(i); } + public int fieldsSize() { return fieldsValue.size(); } + + // Field "value" is always NULL here since it is used + // only during deoptimization of a compiled frame + // pointing to reallocated object. + public OopHandle getValue() { return null; } + + /** Serialization of debugging information */ + + void readObject(DebugInfoReadStream stream) { + klass = readFrom(stream); + Assert.that(klass.isConstantOop(), "should be constant klass oop"); + int length = stream.readInt(); + for (int i = 0; i < length; i++) { + ScopeValue val = readFrom(stream); + fieldsValue.add(val); + } + } + + // Printing + + public void print() { + printOn(System.out); + } + + public void printOn(PrintStream tty) { + tty.print("scalarObj[" + id + "]"); + } + + void printFieldsOn(PrintStream tty) { + if (fieldsValue.size() > 0) { + ((ScopeValue)fieldsValue.get(0)).printOn(tty); + } + for (int i = 1; i < fieldsValue.size(); i++) { + tty.print(", "); + ((ScopeValue)fieldsValue.get(i)).printOn(tty); + } + } + +};