Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/oops/ObjArrayKlass.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 2000-2004 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.io.*; import java.util.*; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.utilities.*; // ObjArrayKlass is the klass for ObjArrays public class ObjArrayKlass extends ArrayKlass { 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("objArrayKlass"); elementKlass = new OopField(type.getOopField("_element_klass"), Oop.getHeaderSize()); bottomKlass = new OopField(type.getOopField("_bottom_klass"), Oop.getHeaderSize()); } ObjArrayKlass(OopHandle handle, ObjectHeap heap) { super(handle, heap); } private static OopField elementKlass; private static OopField bottomKlass; public Klass getElementKlass() { return (Klass) elementKlass.getValue(this); } public Klass getBottomKlass() { return (Klass) bottomKlass.getValue(this); } public long computeModifierFlags() { long elementFlags = getElementKlass().computeModifierFlags(); long arrayFlags = 0L; if ((elementFlags & (JVM_ACC_PUBLIC | JVM_ACC_PROTECTED)) != 0) { // The array type is public if the component type is public or protected arrayFlags = JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC; } else { // The array type is private if the component type is private arrayFlags = JVM_ACC_ABSTRACT | JVM_ACC_FINAL; } return arrayFlags; } public void iterateFields(OopVisitor visitor, boolean doVMFields) { super.iterateFields(visitor, doVMFields); if (doVMFields) { visitor.doOop(elementKlass, true); visitor.doOop(bottomKlass, true); } } public Klass arrayKlassImpl(boolean orNull, int n) { if (Assert.ASSERTS_ENABLED) { Assert.that(getDimension() <= n, "check order of chain"); } int dimension = (int) getDimension(); if (dimension == n) { return this; } ObjArrayKlass ak = (ObjArrayKlass) getHigherDimension(); if (ak == null) { if (orNull) return null; // FIXME: would need to change in reflective system to actually // allocate klass throw new RuntimeException("Can not allocate array klasses in debugging system"); } if (orNull) { return ak.arrayKlassOrNull(n); } return ak.arrayKlass(n); } public Klass arrayKlassImpl(boolean orNull) { return arrayKlassImpl(orNull, (int) (getDimension() + 1)); } public void printValueOn(PrintStream tty) { tty.print("ObjArrayKlass for "); getElementKlass().printValueOn(tty); } };