Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/ui/Inspector.java @ 17716:cdb71841f4bc
6498581: ThreadInterruptTest3 produces wrong output on Windows
Summary: There is race condition between os::interrupt and os::is_interrupted on Windows. In JVM_Sleep(Thread.sleep), check if thread gets interrupted, it may see interrupted but not really interrupted so cause spurious waking up (early return from sleep). Fix by checking if interrupt event really gets set thus prevent false return. For intrinsic of _isInterrupted, on Windows, go fastpath only on bit not set.
Reviewed-by: acorn, kvn
Contributed-by: david.holmes@oracle.com, yumin.qi@oracle.com
author | minqi |
---|---|
date | Wed, 26 Feb 2014 15:20:41 -0800 |
parents | c18cbe5936b8 |
children |
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/* * Copyright (c) 2000, 2006, 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.ui; import java.awt.*; import java.awt.event.*; import java.util.*; import javax.swing.*; import javax.swing.tree.TreePath; import sun.jvm.hotspot.debugger.*; import sun.jvm.hotspot.oops.*; import sun.jvm.hotspot.runtime.*; import sun.jvm.hotspot.types.*; import sun.jvm.hotspot.ui.tree.*; import sun.jvm.hotspot.utilities.*; /** This class implements tree-browsing functionality of a particular SimpleTreeNode, and is only designed to be used in a debugging system. It uses a SimpleTreeModel internally. It can inspect both oops as well as C++ objects described by the VMStructs database in the target VM. */ public class Inspector extends SAPanel { private JTree tree; private SimpleTreeModel model; // UI widgets we need permanent handles to private HistoryComboBox addressField; private JLabel statusLabel; private JButton livenessButton; private ActionListener livenessButtonListener; private ActionListener showLivenessListener; private static final String computeLivenessText = "Compute Liveness"; private static final String showLivenessText = "Show Liveness"; private JLabel liveStatus; private LivenessPathList list = null; private Oop currentOop = null; public Inspector() { model = new SimpleTreeModel(); tree = new JTree(model); setLayout(new BorderLayout()); Box hbox = Box.createHorizontalBox(); JButton button = new JButton("Previous Oop"); button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String text = addressField.getText(); try { VM vm = VM.getVM(); Address a = vm.getDebugger().parseAddress(text); OopHandle handle = a.addOffsetToAsOopHandle(-vm.getAddressSize()); addressField.setText(handle.toString()); } catch (Exception ex) { } } }); hbox.add(button); hbox.add(new JLabel("Address / C++ Expression: ")); addressField = new HistoryComboBox(); hbox.add(addressField); statusLabel = new JLabel(); hbox.add(statusLabel); Box hboxDown = Box.createHorizontalBox(); hboxDown.add(Box.createGlue()); livenessButton = new JButton(computeLivenessText); livenessButtonListener = new ActionListener() { public void actionPerformed(ActionEvent e) { if (currentOop != null) { fireComputeLiveness(); } return; } }; showLivenessListener = new ActionListener() { public void actionPerformed(ActionEvent e) { fireShowLiveness(); } }; livenessButton.addActionListener(livenessButtonListener); hboxDown.add(livenessButton); hboxDown.add(Box.createGlue()); liveStatus = new JLabel(); hboxDown.add(liveStatus); hboxDown.add(Box.createGlue()); add(hbox, BorderLayout.NORTH); add(hboxDown, BorderLayout.SOUTH); addressField.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { String text = addressField.getText(); try { Address a = VM.getVM().getDebugger().parseAddress(text); int max_searches = 1000; int searches = 0; int offset = 0; Oop oop = null; if (a != null) { OopHandle handle = a.addOffsetToAsOopHandle(0); while (searches < max_searches) { searches++; if (RobustOopDeterminator.oopLooksValid(handle)) { try { oop = VM.getVM().getObjectHeap().newOop(handle); addressField.setText(handle.toString()); break; } catch (UnknownOopException ex) { // ok } catch (RuntimeException ex) { ex.printStackTrace(); } } offset -= 4; handle = a.addOffsetToAsOopHandle(offset); } } if (oop != currentOop) { currentOop = oop; liveStatus.setText(""); list = null; if (livenessButton.getText().equals(showLivenessText)) { livenessButton.setText(computeLivenessText); livenessButton.removeActionListener(showLivenessListener); livenessButton.addActionListener(livenessButtonListener); } } if (oop != null) { statusLabel.setText(""); setRoot(new OopTreeNodeAdapter(oop, null)); return; } // Try to treat this address as a C++ object and deduce its type Type t = VM.getVM().getTypeDataBase().guessTypeForAddress(a); if (t != null) { statusLabel.setText(""); setRoot(new CTypeTreeNodeAdapter(a, t, null)); return; } statusLabel.setText("<bad oop or unknown C++ object " + text + ">"); } catch (NumberFormatException ex) { currentOop = null; liveStatus.setText(""); list = null; if (livenessButton.getText().equals(showLivenessText)) { livenessButton.setText(computeLivenessText); livenessButton.removeActionListener(showLivenessListener); livenessButton.addActionListener(livenessButtonListener); } // Try to treat this as a C++ expression CPPExpressions.CastExpr cast = CPPExpressions.parseCast(text); if (cast != null) { TypeDataBase db = VM.getVM().getTypeDataBase(); Type t = db.lookupType(cast.getType()); if (t == null) { statusLabel.setText("<unknown C++ type \"" + cast.getType() + "\">"); } else { try { Address a = VM.getVM().getDebugger().parseAddress(cast.getAddress()); statusLabel.setText(""); setRoot(new CTypeTreeNodeAdapter(a, t, null)); } catch (NumberFormatException ex2) { statusLabel.setText("<bad address " + cast.getAddress() + ">"); } } return; } CPPExpressions.StaticFieldExpr stat = CPPExpressions.parseStaticField(text); if (stat != null) { TypeDataBase db = VM.getVM().getTypeDataBase(); Type t = db.lookupType(stat.getContainingType()); if (t == null) { statusLabel.setText("<unknown C++ type \"" + stat.getContainingType() + "\">"); } else { sun.jvm.hotspot.types.Field f = t.getField(stat.getFieldName(), true, false); if (f == null) { statusLabel.setText("<unknown field \"" + stat.getFieldName() + "\" in type \"" + stat.getContainingType() + "\">"); } else if (!f.isStatic()) { statusLabel.setText("<field \"" + stat.getContainingType() + "::" + stat.getFieldName() + "\" was not static>"); } else { Type fieldType = f.getType(); if (fieldType.isPointerType()) { fieldType = ((PointerType) fieldType).getTargetType(); // Try to get a more derived type Type typeGuess = db.guessTypeForAddress(f.getAddress()); if (typeGuess != null) { fieldType = typeGuess; } statusLabel.setText(""); setRoot(new CTypeTreeNodeAdapter(f.getAddress(), fieldType, new NamedFieldIdentifier(text))); } else { statusLabel.setText(""); setRoot(new CTypeTreeNodeAdapter(f.getStaticFieldAddress(), f.getType(), new NamedFieldIdentifier(text))); } } } return; } statusLabel.setText("<parse error>"); } catch (AddressException ex) { ex.printStackTrace(); currentOop = null; liveStatus.setText(""); list = null; if (livenessButton.getText().equals(showLivenessText)) { livenessButton.setText(computeLivenessText); livenessButton.removeActionListener(showLivenessListener); livenessButton.addActionListener(livenessButtonListener); } statusLabel.setText("<bad address>"); } catch (Exception ex) { ex.printStackTrace(); currentOop = null; liveStatus.setText(""); list = null; if (livenessButton.getText().equals(showLivenessText)) { livenessButton.setText(computeLivenessText); livenessButton.removeActionListener(showLivenessListener); livenessButton.addActionListener(livenessButtonListener); } statusLabel.setText("<error constructing oop>"); } } }); MouseListener ml = new MouseAdapter() { public void mousePressed(MouseEvent e) { int selRow = tree.getRowForLocation(e.getX(), e.getY()); TreePath selPath = tree.getPathForLocation(e.getX(), e.getY()); if(selRow != -1) { if (e.getClickCount() == 1 && (e.getModifiersEx() & InputEvent.SHIFT_DOWN_MASK) != 0) { Object node = tree.getLastSelectedPathComponent(); if (node != null && node instanceof SimpleTreeNode) { showInspector((SimpleTreeNode)node); } } } } }; tree.addMouseListener(ml); JScrollPane scrollPane = new JScrollPane(tree); // Let's see what happens if we let the parent deal with resizing the panel add(scrollPane, BorderLayout.CENTER); } public Inspector(final SimpleTreeNode root) { this(); SwingUtilities.invokeLater( new Runnable() { public void run() { if (root instanceof OopTreeNodeAdapter) { final Oop oop = ((OopTreeNodeAdapter)root).getOop(); addressField.setText(oop.getHandle().toString()); } setRoot(root); } }); } private void setRoot(SimpleTreeNode root) { model.setRoot(root); // tree.invalidate(); // tree.validate(); // repaint(); // FIXME: invalidate? How to get to redraw? Will I have to make // tree listeners work? } private void fireComputeLiveness() { final Runnable cutoverButtonRunnable = new Runnable() { public void run() { list = LivenessAnalysis.computeAllLivenessPaths(currentOop); if (list == null) { liveStatus.setText("Oop is Dead"); } else { liveStatus.setText("Oop is Alive"); livenessButton.removeActionListener(livenessButtonListener); livenessButton.addActionListener(showLivenessListener); livenessButton.setEnabled(true); livenessButton.setText(showLivenessText); } } }; if (VM.getVM().getRevPtrs() != null) { cutoverButtonRunnable.run(); } else { final WorkerThread worker = new WorkerThread(); worker.invokeLater(new Runnable() { public void run() { try { ReversePtrsAnalysis rev = new ReversePtrsAnalysis(); rev.run(); cutoverButtonRunnable.run(); } finally { worker.shutdown(); } } }); } } private void fireShowLiveness() { if (list == null) { return; // dead object } for (Iterator iter = listeners.iterator(); iter.hasNext(); ) { SAListener listener = (SAListener) iter.next(); listener.showLiveness(currentOop, list); } } }