Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/oops/ConstantPoolCacheEntry.java @ 218:a5838065ab24
6620329: jstack prints double native methods on Solaris/sparc
Summary: Fixed stack walking code in sparc to start frame walk from last_java_sp.
Reviewed-by: sgoldman
author | swamyv |
---|---|
date | Tue, 24 Jun 2008 21:37:10 -0700 |
parents | a61af66fc99e |
children | c18cbe5936b8 |
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/* * Copyright 2001-2005 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.oops; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; public class ConstantPoolCacheEntry { private static long size; private static long baseOffset; private static CIntegerField indices; private static sun.jvm.hotspot.types.OopField f1; private static CIntegerField f2; private static CIntegerField flags; private ConstantPoolCache cp; private long offset; 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("ConstantPoolCacheEntry"); size = type.getSize(); indices = type.getCIntegerField("_indices"); f1 = type.getOopField ("_f1"); f2 = type.getCIntegerField("_f2"); flags = type.getCIntegerField("_flags"); type = db.lookupType("constantPoolCacheOopDesc"); baseOffset = type.getSize(); } ConstantPoolCacheEntry(ConstantPoolCache cp, int index) { this.cp = cp; offset = baseOffset + index * size; } public int getConstantPoolIndex() { return (int) (getIndices() & 0xFFFF); } private long getIndices() { return cp.getHandle().getCIntegerAt(indices.getOffset() + offset, indices.getSize(), indices.isUnsigned()); } public Oop getF1() { return cp.getHeap().newOop(cp.getHandle().getOopHandleAt(f1.getOffset() + offset)); } public int getF2() { return cp.getHandle().getJIntAt(f1.getOffset() + offset); } public int getFlags() { return cp.getHandle().getJIntAt(flags.getOffset() + offset); } static NamedFieldIdentifier f1FieldName = new NamedFieldIdentifier("_f1"); static NamedFieldIdentifier f2FieldName = new NamedFieldIdentifier("_f2"); static NamedFieldIdentifier flagsFieldName = new NamedFieldIdentifier("_flags"); public void iterateFields(OopVisitor visitor) { visitor.doOop(new OopField(f1FieldName, f1.getOffset() + offset, true), true); visitor.doInt(new IntField(f2FieldName, f2.getOffset() + offset, true), true); visitor.doInt(new IntField(flagsFieldName, flags.getOffset() + offset, true), true); } }