Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicCompoundType.java @ 650:54782a4cd321
6812971: SA: re-attaching to process fails
Summary: After attaching, de-attaching SA from a process, the second time attach() call fails. This happens because in VM.initialize(), Universe does not get re-initialized before it is accessed.
Reviewed-by: swamyv
author | poonam |
---|---|
date | Sun, 15 Mar 2009 18:11:46 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001 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.debugger.cdbg.basic; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.debugger.cdbg.*; import sun.jvm.hotspot.utilities.Assert; public class BasicCompoundType extends BasicType implements CompoundType { private CompoundTypeKind kind; private List baseClasses; private List fields; public BasicCompoundType(String name, int size, CompoundTypeKind kind) { this(name, size, kind, 0); } private BasicCompoundType(String name, int size, CompoundTypeKind kind, int cvAttributes) { super(name, size, cvAttributes); if (Assert.ASSERTS_ENABLED) { Assert.that(kind != null, "null kind"); } this.kind = kind; } public CompoundType asCompound() { return this; } public int getNumBaseClasses() { return ((baseClasses == null) ? 0 : baseClasses.size()); } public BaseClass getBaseClass(int i) { return (BaseClass) baseClasses.get(i); } public void addBaseClass(BaseClass b) { if (baseClasses == null) { baseClasses = new ArrayList(); } baseClasses.add(b); } public int getNumFields() { return ((fields == null) ? 0 : fields.size()); } public Field getField(int i) { return (Field) fields.get(i); } public void addField(Field f) { if (fields == null) { fields = new ArrayList(); } fields.add(f); } public boolean isClass() { return (kind == CompoundTypeKind.CLASS); } public boolean isStruct() { return (kind == CompoundTypeKind.STRUCT); } public boolean isUnion() { return (kind == CompoundTypeKind.UNION); } Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) { super.resolveTypes(db, listener); if (baseClasses != null) { for (Iterator iter = baseClasses.iterator(); iter.hasNext(); ) { BasicBaseClass b = (BasicBaseClass) iter.next(); b.resolveTypes(this, db, listener); } } if (fields != null) { for (Iterator iter = fields.iterator(); iter.hasNext(); ) { BasicField b = (BasicField) iter.next(); b.resolveTypes(this, db, listener); } } return this; } public void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f) { // What kind of iteration are we doing? If the end user requested // iteration over a given object at a given address, the field // identifier will be null, and we should descend and iterate over // our fields and superclasses. Otherwise, we are already // iterating through an object, and it is up to the end user // whether to descend into the embedded object. if (f == null) { // FIXME: this is one of the key hard components of this // implementation. Will need to properly handle multiple // inheritance and possibly virtual base classes (i.e., not // iterating twice for a virtual base class inherited indirectly // more than once). For now, we do the simple thing, which // assumes single inheritance. for (int i = 0; i < getNumBaseClasses(); i++) { BasicCompoundType b = (BasicCompoundType) getBaseClass(i).getType(); b.iterateObject(a, v, f); } // Now we are in our scope v.enterType(this, a); // Iterate through our fields for (int i = 0; i < getNumFields(); i++) { Field field = getField(i); BasicType fieldType = (BasicType) field.getType(); fieldType.iterateObject(a.addOffsetTo(field.getOffset()), v, new BasicNamedFieldIdentifier(field)); } v.exitType(); } else { v.doCompound(f, a); } } protected Type createCVVariant(int cvAttributes) { BasicCompoundType t = new BasicCompoundType(getName(), getSize(), kind, cvAttributes); t.kind = kind; t.baseClasses = baseClasses; t.fields = fields; return t; } public void visit(TypeVisitor v) { v.doCompoundType(this); } }