| /* |
| * Copyright (c) 2000, 2007, 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; |
| |
| import java.io.*; |
| import java.util.*; |
| import sun.jvm.hotspot.oops.*; |
| import sun.jvm.hotspot.utilities.*; |
| |
| public abstract class JavaVFrame extends VFrame { |
| /** JVM state */ |
| public abstract Method getMethod(); |
| public abstract int getBCI(); |
| public abstract StackValueCollection getLocals(); |
| public abstract StackValueCollection getExpressions(); |
| public abstract List getMonitors(); // List<MonitorInfo> |
| |
| /** Test operation */ |
| public boolean isJavaFrame() { return true; } |
| |
| /** Package-internal constructor */ |
| JavaVFrame(Frame fr, RegisterMap regMap, JavaThread thread) { |
| super(fr, regMap, thread); |
| } |
| |
| /** Get monitor (if any) that this JavaVFrame is trying to enter */ |
| // FIXME: not yet implemented |
| // public Address getPendingMonitor(int frameCount); |
| |
| /** Printing used during stack dumps */ |
| // FIXME: not yet implemented |
| // void print_lock_info(int frame_count); |
| |
| /** Printing operations */ |
| |
| // |
| // FIXME: implement visitor pattern for traversing vframe contents? |
| // |
| |
| public void print() { |
| printOn(System.out); |
| } |
| |
| public void printOn(PrintStream tty) { |
| super.printOn(tty); |
| |
| tty.print("\t"); |
| getMethod().printValueOn(tty); |
| tty.println(); |
| tty.println("\tbci:\t" + getBCI()); |
| |
| printStackValuesOn(tty, "locals", getLocals()); |
| printStackValuesOn(tty, "expressions", getExpressions()); |
| |
| // List<MonitorInfo> |
| // FIXME: not yet implemented |
| // List list = getMonitors(); |
| // if (list.isEmpty()) { |
| // return; |
| // } |
| // for (int index = 0; index < list.size(); index++) { |
| // MonitorInfo monitor = (MonitorInfo) list.get(index); |
| // tty.print("\t obj\t"); |
| // monitor.getOwner().printValueOn(tty); |
| // tty.println(); |
| // tty.print("\t "); |
| // monitor.lock().printOn(tty); |
| // tty.println(); |
| // } |
| } |
| |
| public void printActivation(int index) { |
| printActivationOn(System.out, index); |
| } |
| |
| public void printActivationOn(PrintStream tty, int index) { |
| // frame number and method |
| tty.print(index + " - "); |
| printValueOn(tty); |
| tty.println(); |
| |
| if (VM.getVM().wizardMode()) { |
| printOn(tty); |
| tty.println(); |
| } |
| } |
| |
| /** Verification operations */ |
| public void verify() { |
| } |
| |
| public boolean equals(Object o) { |
| if (o == null || !(o instanceof JavaVFrame)) { |
| return false; |
| } |
| |
| JavaVFrame other = (JavaVFrame) o; |
| |
| // Check static part |
| if (!getMethod().equals(other.getMethod())) { |
| return false; |
| } |
| |
| if (getBCI() != other.getBCI()) { |
| return false; |
| } |
| |
| // dynamic part - we just compare the frame pointer |
| if (! getFrame().equals(other.getFrame())) { |
| return false; |
| } |
| return true; |
| } |
| |
| public int hashCode() { |
| return getMethod().hashCode() ^ getBCI() ^ getFrame().hashCode(); |
| } |
| |
| /** Structural compare */ |
| public boolean structuralCompare(JavaVFrame other) { |
| // Check static part |
| if (!getMethod().equals(other.getMethod())) { |
| return false; |
| } |
| |
| if (getBCI() != other.getBCI()) { |
| return false; |
| } |
| |
| // Check locals |
| StackValueCollection locs = getLocals(); |
| StackValueCollection otherLocs = other.getLocals(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(locs.size() == otherLocs.size(), "sanity check"); |
| } |
| for (int i = 0; i < locs.size(); i++) { |
| // it might happen the compiler reports a conflict and |
| // the interpreter reports a bogus int. |
| if ( isCompiledFrame() && (locs.get(i)).getType() == BasicType.getTConflict()) continue; |
| if (other.isCompiledFrame() && (otherLocs.get(i)).getType() == BasicType.getTConflict()) continue; |
| |
| if (!locs.get(i).equals(otherLocs.get(i))) { |
| return false; |
| } |
| } |
| |
| // Check expressions |
| StackValueCollection exprs = getExpressions(); |
| StackValueCollection otherExprs = other.getExpressions(); |
| if (Assert.ASSERTS_ENABLED) { |
| Assert.that(exprs.size() == otherExprs.size(), "sanity check"); |
| } |
| for (int i = 0; i < exprs.size(); i++) { |
| if (!exprs.get(i).equals(otherExprs.get(i))) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| //-------------------------------------------------------------------------------- |
| // Internals only below this point |
| // |
| |
| private void printStackValuesOn(PrintStream tty, String title, StackValueCollection values) { |
| if (values.isEmpty()) { |
| return; |
| } |
| tty.println("\t" + title + ":"); |
| for (int index = 0; index < values.size(); index++) { |
| tty.print("\t" + index + "\t"); |
| values.get(index).printOn(tty); |
| tty.println(); |
| } |
| } |
| } |