jdk8-mips64-public/hotspot: agent/test/jdi/TestScaffold.java@dbb05f6d93c4 (annotated)

agent/test/jdi/TestScaffold.java@dbb05f6d93c4 (annotated)

agent/test/jdi/TestScaffold.java

Mon, 28 Jul 2014 15:06:38 -0700

author: fzhinkin
date: Mon, 28 Jul 2014 15:06:38 -0700
changeset 6997: dbb05f6d93c4
parent 1907: c18cbe5936b8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8051344: JVM crashed in Compile::start() during method parsing w/ UseRTMDeopt turned on
Summary: call rtm_deopt() only if there were no compilation bailouts before.
Reviewed-by: kvn

 /*
  * Copyright (c) 2002, 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.
  *
  */
 import com.sun.jdi.*;
 import com.sun.jdi.request.*;
 import com.sun.jdi.event.*;
 import java.util.*;
 import java.io.*;
 /**
  * Framework used by all JDI regression tests
  */
 abstract public class TestScaffold extends TargetAdapter {
     private boolean shouldTrace = false;
     private VMConnection connection;
     private VirtualMachine vm;
     private EventRequestManager requestManager;
     private List listeners = Collections.synchronizedList(new LinkedList());
     /**
      * We create a VMDeathRequest, SUSPEND_ALL, to sync the BE and FE.
      */
     //private VMDeathRequest ourVMDeathRequest = null;
     Object ourVMDeathRequest = null;
     /**
      * We create an ExceptionRequest, SUSPEND_NONE so that we can
      * catch it and output a msg if an exception occurs in the
      * debuggee.
      */
     private ExceptionRequest ourExceptionRequest = null;
     /**
      * If we do catch an uncaught exception, we set this true
      * so the testcase can find out if it wants to.
      */
     private boolean exceptionCaught = false;
     ThreadReference vmStartThread = null;
     boolean vmDied = false;
     boolean vmDisconnected = false;
     final String[] args;
     protected boolean testFailed = false;
     static private class ArgInfo {
         String targetVMArgs = "";
         String targetAppCommandLine = "";
         String connectorSpec = "com.sun.jdi.CommandLineLaunch:";
         int traceFlags = 0;
     }
     /**
      * An easy way to sleep for awhile
      */
     public void mySleep(int millis) {
         try {
             Thread.sleep(millis);
         } catch (InterruptedException ee) {
         }
     }
     boolean getExceptionCaught() {
         return exceptionCaught;
     }
     void setExceptionCaught(boolean value) {
         exceptionCaught = value;
     }
     /**
      * Return true if eventSet contains the VMDeathEvent for the request in
      * the ourVMDeathRequest ivar.
      */
     private boolean containsOurVMDeathRequest(EventSet eventSet) {
         if (ourVMDeathRequest != null) {
             Iterator myIter = eventSet.iterator();
             while (myIter.hasNext()) {
                 Event myEvent = (Event)myIter.next();
                 if (!(myEvent instanceof VMDeathEvent)) {
                     // We assume that an EventSet contains only VMDeathEvents
                     // or no VMDeathEvents.
                     break;
                 }
                 if (ourVMDeathRequest.equals(myEvent.request())) {
                     return true;
                 }
             }
         }
         return false;
     }
     /************************************************************************
      * The following methods override those in our base class, TargetAdapter.
      *************************************************************************/
     /**
      * Events handled directly by scaffold always resume (well, almost always)
      */
     public void eventSetComplete(EventSet set) {
         // The listener in connect(..) resumes after receiving our
         // special VMDeathEvent.  We can't also do the resume
         // here or we will probably get a VMDisconnectedException
         if (!containsOurVMDeathRequest(set)) {
             traceln("TS: set.resume() called");
             set.resume();
         }
     }
     /**
      * This method sets up default requests.
      * Testcases can override this to change default behavior.
      */
     protected void createDefaultEventRequests() {
         createDefaultVMDeathRequest();
         createDefaultExceptionRequest();
     }
     /**
      * We want the BE to stop when it issues a VMDeathEvent in order to
      * give the FE time to complete handling events that occured before
      * the VMDeath.  When we get the VMDeathEvent for this request in
      * the listener in connect(), we will do a resume.
      * If a testcase wants to do something special with VMDeathEvent's,
      * then it should override this method with an empty method or
      * whatever in order to suppress the automatic resume.  The testcase
      * will then be responsible for the handling of VMDeathEvents.  It
      * has to be sure that it does a resume if it gets a VMDeathEvent
      * with SUSPEND_ALL, and it has to be sure that it doesn't do a
      * resume after getting a VMDeath with SUSPEND_NONE (the automatically
      * generated VMDeathEvent.)
      */
     protected void createDefaultVMDeathRequest() {
 //         ourVMDeathRequest = requestManager.createVMDeathRequest();
 //         ourVMDeathRequest.setSuspendPolicy(EventRequest.SUSPEND_ALL);
 //         ourVMDeathRequest.enable();
     }
     /**
      * This will allow us to print a warning if a debuggee gets an
      * unexpected exception.  The unexpected exception will be handled in
      * the exceptionThrown method in the listener created in the connect()
      * method.
      * If a testcase does not want an uncaught exception to cause a
      * msg, it must override this method.
      */
     protected void createDefaultExceptionRequest() {
         ourExceptionRequest = requestManager.createExceptionRequest(null,
                                                                 false, true);
         // We can't afford to make this be other than SUSPEND_NONE.  Otherwise,
         // it would have to be resumed.  If our connect() listener resumes it,
         // what about the case where the EventSet contains other events with
         // SUSPEND_ALL and there are other listeners who expect the BE to still
         // be suspended when their handlers get called?
         ourExceptionRequest.setSuspendPolicy(EventRequest.SUSPEND_NONE);
         ourExceptionRequest.enable();
     }
     private class EventHandler implements Runnable {
         EventHandler() {
             Thread thread = new Thread(this);
             thread.setDaemon(true);
             thread.start();
         }
         private void notifyEvent(TargetListener listener, Event event) {
             if (event instanceof BreakpointEvent) {
                 listener.breakpointReached((BreakpointEvent)event);
             } else if (event instanceof ExceptionEvent) {
                 listener.exceptionThrown((ExceptionEvent)event);
             } else if (event instanceof StepEvent) {
                 listener.stepCompleted((StepEvent)event);
             } else if (event instanceof ClassPrepareEvent) {
                 listener.classPrepared((ClassPrepareEvent)event);
             } else if (event instanceof ClassUnloadEvent) {
                 listener.classUnloaded((ClassUnloadEvent)event);
             } else if (event instanceof MethodEntryEvent) {
                 listener.methodEntered((MethodEntryEvent)event);
             } else if (event instanceof MethodExitEvent) {
                 listener.methodExited((MethodExitEvent)event);
             } else if (event instanceof AccessWatchpointEvent) {
                 listener.fieldAccessed((AccessWatchpointEvent)event);
             } else if (event instanceof ModificationWatchpointEvent) {
                 listener.fieldModified((ModificationWatchpointEvent)event);
             } else if (event instanceof ThreadStartEvent) {
                 listener.threadStarted((ThreadStartEvent)event);
             } else if (event instanceof ThreadDeathEvent) {
                 listener.threadDied((ThreadDeathEvent)event);
             } else if (event instanceof VMStartEvent) {
                 listener.vmStarted((VMStartEvent)event);
             } else if (event instanceof VMDeathEvent) {
                 listener.vmDied((VMDeathEvent)event);
             } else if (event instanceof VMDisconnectEvent) {
                 listener.vmDisconnected((VMDisconnectEvent)event);
             } else {
                 throw new InternalError("Unknown event type: " + event.getClass());
             }
         }
         private void traceSuspendPolicy(int policy) {
             if (shouldTrace) {
                 switch (policy) {
                 case EventRequest.SUSPEND_NONE:
                     traceln("TS: eventHandler: suspend = SUSPEND_NONE");
                     break;
                 case EventRequest.SUSPEND_ALL:
                     traceln("TS: eventHandler: suspend = SUSPEND_ALL");
                     break;
                 case EventRequest.SUSPEND_EVENT_THREAD:
                     traceln("TS: eventHandler: suspend = SUSPEND_EVENT_THREAD");
                     break;
                 }
             }
         }
         public void run() {
             boolean connected = true;
             do {
                 try {
                     EventSet set = vm.eventQueue().remove();
                     traceSuspendPolicy(set.suspendPolicy());
                     synchronized (listeners) {
                         ListIterator iter = listeners.listIterator();
                         while (iter.hasNext()) {
                             TargetListener listener = (TargetListener)iter.next();
                             traceln("TS: eventHandler: listener = " + listener);
                             listener.eventSetReceived(set);
                             if (listener.shouldRemoveListener()) {
                                 iter.remove();
                             } else {
                                 Iterator jter = set.iterator();
                                 while (jter.hasNext()) {
                                     Event event = (Event)jter.next();
                                     traceln("TS: eventHandler:    event = " + event.getClass());
                                     if (event instanceof VMDisconnectEvent) {
                                         connected = false;
                                     }
                                     listener.eventReceived(event);
                                     if (listener.shouldRemoveListener()) {
                                         iter.remove();
                                         break;
                                     }
                                     notifyEvent(listener, event);
                                     if (listener.shouldRemoveListener()) {
                                         iter.remove();
                                         break;
                                     }
                                 }
                                 traceln("TS: eventHandler:   end of events loop");
                                 if (!listener.shouldRemoveListener()) {
                                     traceln("TS: eventHandler:   calling ESC");
                                     listener.eventSetComplete(set);
                                     if (listener.shouldRemoveListener()) {
                                         iter.remove();
                                     }
                                 }
                             }
                             traceln("TS: eventHandler: end of listeners loop");
                         }
                     }
                 } catch (InterruptedException e) {
                     traceln("TS: eventHandler: InterruptedException");
                 } catch (Exception e) {
                     failure("FAILED: Exception occured in eventHandler: " + e);
                     e.printStackTrace();
                     connected = false;
                     synchronized(TestScaffold.this) {
                         // This will make the waiters such as waitForVMDisconnect
                         // exit their wait loops.
                         vmDisconnected = true;
                         TestScaffold.this.notifyAll();
                     }
                 }
                 traceln("TS: eventHandler: End of outerloop");
             } while (connected);
             traceln("TS: eventHandler: finished");
         }
     }
     /**
      * Constructor
      */
     public TestScaffold(String[] args) {
         this.args = args;
     }
     public void enableScaffoldTrace() {
         this.shouldTrace = true;
     }
     public void disableScaffoldTrace() {
         this.shouldTrace = false;
     }
     protected void startUp(String targetName) {
         List argList = new ArrayList(Arrays.asList(args));
         argList.add(targetName);
         println("run args: " + argList);
         connect((String[]) argList.toArray(args));
         waitForVMStart();
     }
     protected BreakpointEvent startToMain(String targetName) {
         startUp(targetName);
         traceln("TS: back from startUp");
         BreakpointEvent bpr = resumeTo(targetName, "main", "([Ljava/lang/String;)V");
         waitForInput();
         return bpr;
     }
     protected void waitForInput() {
         if (System.getProperty("jpda.wait") != null) {
             try {
                 System.err.println("Press <enter> to continue");
                 System.in.read();
                 System.err.println("running...");
             } catch(Exception e) {
             }
         }
     }
     /*
      * Test cases should implement tests in runTests and should
      * initiate testing by calling run().
      */
     abstract protected void runTests() throws Exception;
     final public void startTests() throws Exception {
         try {
             runTests();
         } finally {
             shutdown();
         }
     }
     protected void println(String str) {
         System.err.println(str);
     }
     protected void print(String str) {
         System.err.print(str);
     }
     protected void traceln(String str) {
         if (shouldTrace) {
             println(str);
         }
     }
     protected void failure(String str) {
         println(str);
         testFailed = true;
     }
     private ArgInfo parseArgs(String args[]) {
         ArgInfo argInfo = new ArgInfo();
         for (int i = 0; i < args.length; i++) {
             if (args[i].equals("-connect")) {
                 i++;
                 argInfo.connectorSpec = args[i];
             } else if (args[i].equals("-trace")) {
                 i++;
                 argInfo.traceFlags = Integer.decode(args[i]).intValue();
             } else if (args[i].startsWith("-J")) {
                 argInfo.targetVMArgs += (args[i].substring(2) + ' ');
                 /*
                  * classpath can span two arguments so we need to handle
                  * it specially.
                  */
                 if (args[i].equals("-J-classpath")) {
                     i++;
                     argInfo.targetVMArgs += (args[i] + ' ');
                 }
             } else {
                 argInfo.targetAppCommandLine += (args[i] + ' ');
             }
         }
         return argInfo;
     }
     /**
      * This is called to connect to a debuggee VM.  It starts the VM and
      * installs a listener to catch VMStartEvent, our default events, and
      * VMDisconnectedEvent.  When these events appear, that is remembered
      * and waiters are notified.
      * This is normally called in the main thread of the test case.
      * It starts up an EventHandler thread that gets events coming in
      * from the debuggee and distributes them to listeners.  That thread
      * keeps running until a VMDisconnectedEvent occurs or some exception
      * occurs during its processing.
      *
      * The 'listenUntilVMDisconnect' method adds 'this' as a listener.
      * This means that 'this's vmDied method will get called.  This has a
      * default impl in TargetAdapter.java which can be overridden in the
      * testcase.
      *
      * waitForRequestedEvent also adds an adaptor listener that listens
      * for the particular event it is supposed to wait for (and it also
      * catches VMDisconnectEvents.)  This listener is removed once
      * its eventReceived method is called.
      * waitForRequestedEvent is called by most of the methods to do bkpts,
      * etc.
      */
     public void connect(String args[]) {
         ArgInfo argInfo = parseArgs(args);
         argInfo.targetVMArgs += VMConnection.getDebuggeeVMOptions();
         connection = new VMConnection(argInfo.connectorSpec,
                                       argInfo.traceFlags);
         addListener(new TargetAdapter() {
                 public void eventSetComplete(EventSet set) {
                     if (TestScaffold.this.containsOurVMDeathRequest(set)) {
                         traceln("TS: connect: set.resume() called");
                         set.resume();
                         // Note that we want to do the above resume before
                         // waking up any sleepers.
                         synchronized(TestScaffold.this) {
                             TestScaffold.this.notifyAll();
                         }
                     }
                 }
                 public void vmStarted(VMStartEvent event) {
                     synchronized(TestScaffold.this) {
                         vmStartThread = event.thread();
                         TestScaffold.this.notifyAll();
                     }
                 }
                 /**
                  * By default, we catch uncaught exceptions and print a msg.
                  * The testcase must override the createDefaultExceptionRequest
                  * method if it doesn't want this behavior.
                  */
                 public void exceptionThrown(ExceptionEvent event) {
                     if (TestScaffold.this.ourExceptionRequest != null &&
                         TestScaffold.this.ourExceptionRequest.equals(
                                                         event.request())) {
                         println("Note: Unexpected Debuggee Exception: " +
                                 event.exception().referenceType().name() +
                                 " at line " + event.location().lineNumber());
                         TestScaffold.this.exceptionCaught = true;
                     }
                 }
                 public void vmDied(VMDeathEvent event) {
                     vmDied = true;
                     traceln("TS: vmDied called");
                 }
                 public void vmDisconnected(VMDisconnectEvent event) {
                     synchronized(TestScaffold.this) {
                         vmDisconnected = true;
                         TestScaffold.this.notifyAll();
                     }
                 }
             });
         if (connection.connector().name().equals("com.sun.jdi.CommandLineLaunch")) {
             if (argInfo.targetVMArgs.length() > 0) {
                 if (connection.connectorArg("options").length() > 0) {
                     throw new IllegalArgumentException("VM options in two places");
                 }
                 connection.setConnectorArg("options", argInfo.targetVMArgs);
             }
             if (argInfo.targetAppCommandLine.length() > 0) {
                 if (connection.connectorArg("main").length() > 0) {
                     throw new IllegalArgumentException("Command line in two places");
                 }
                 connection.setConnectorArg("main", argInfo.targetAppCommandLine);
             }
         }
         vm = connection.open();
         requestManager = vm.eventRequestManager();
         createDefaultEventRequests();
         new EventHandler();
     }
     public VirtualMachine vm() {
         return vm;
     }
     public EventRequestManager eventRequestManager() {
         return requestManager;
     }
     public void addListener(TargetListener listener) {
         traceln("TS: Adding listener " + listener);
         listeners.add(listener);
     }
     public void removeListener(TargetListener listener) {
         traceln("TS: Removing listener " + listener);
         listeners.remove(listener);
     }
     protected void listenUntilVMDisconnect() {
         try {
             addListener (this);
         } catch (Exception ex){
             ex.printStackTrace();
             testFailed = true;
         } finally {
             // Allow application to complete and shut down
             resumeToVMDisconnect();
         }
     }
     public synchronized ThreadReference waitForVMStart() {
         while ((vmStartThread == null) && !vmDisconnected) {
             try {
                 wait();
             } catch (InterruptedException e) {
             }
         }
         if (vmStartThread == null) {
             throw new VMDisconnectedException();
         }
         return vmStartThread;
     }
     public synchronized void waitForVMDisconnect() {
         traceln("TS: waitForVMDisconnect");
         while (!vmDisconnected) {
             try {
                 wait();
             } catch (InterruptedException e) {
             }
         }
         traceln("TS: waitForVMDisconnect: done");
     }
     public Event waitForRequestedEvent(final EventRequest request) {
         class EventNotification {
             Event event;
             boolean disconnected = false;
         }
         final EventNotification en = new EventNotification();
         TargetAdapter adapter = new TargetAdapter() {
             public void eventReceived(Event event) {
                 if (request.equals(event.request())) {
                     traceln("TS:Listener2: got requested event");
                     synchronized (en) {
                         en.event = event;
                         en.notifyAll();
                     }
                     removeThisListener();
                 } else if (event instanceof VMDisconnectEvent) {
                     traceln("TS:Listener2: got VMDisconnectEvent");
                     synchronized (en) {
                         en.disconnected = true;
                         en.notifyAll();
                     }
                     removeThisListener();
                 }
             }
         };
         addListener(adapter);
         try {
             synchronized (en) {
                 traceln("TS: waitForRequestedEvent: vm.resume called");
                 vm.resume();
                 while (!en.disconnected && (en.event == null)) {
                     en.wait();
                 }
             }
         } catch (InterruptedException e) {
             return null;
         }
         if (en.disconnected) {
             throw new RuntimeException("VM Disconnected before requested event occurred");
         }
         return en.event;
     }
     private StepEvent doStep(ThreadReference thread, int gran, int depth) {
         final StepRequest sr =
                   requestManager.createStepRequest(thread, gran, depth);
         sr.addClassExclusionFilter("java.*");
         sr.addClassExclusionFilter("sun.*");
         sr.addClassExclusionFilter("com.sun.*");
         sr.addCountFilter(1);
         sr.enable();
         StepEvent retEvent = (StepEvent)waitForRequestedEvent(sr);
         requestManager.deleteEventRequest(sr);
         return retEvent;
     }
     public StepEvent stepIntoInstruction(ThreadReference thread) {
         return doStep(thread, StepRequest.STEP_MIN, StepRequest.STEP_INTO);
     }
     public StepEvent stepIntoLine(ThreadReference thread) {
         return doStep(thread, StepRequest.STEP_LINE, StepRequest.STEP_INTO);
     }
     public StepEvent stepOverInstruction(ThreadReference thread) {
         return doStep(thread, StepRequest.STEP_MIN, StepRequest.STEP_OVER);
     }
     public StepEvent stepOverLine(ThreadReference thread) {
         return doStep(thread, StepRequest.STEP_LINE, StepRequest.STEP_OVER);
     }
     public StepEvent stepOut(ThreadReference thread) {
         return doStep(thread, StepRequest.STEP_LINE, StepRequest.STEP_OUT);
     }
     public BreakpointEvent resumeTo(Location loc) {
         final BreakpointRequest request =
             requestManager.createBreakpointRequest(loc);
         request.addCountFilter(1);
         request.enable();
         return (BreakpointEvent)waitForRequestedEvent(request);
     }
     public ReferenceType findReferenceType(String name) {
         List rts = vm.classesByName(name);
         Iterator iter = rts.iterator();
         while (iter.hasNext()) {
             ReferenceType rt = (ReferenceType)iter.next();
             if (rt.name().equals(name)) {
                 return rt;
             }
         }
         return null;
     }
     public Method findMethod(ReferenceType rt, String name, String signature) {
         List methods = rt.methods();
         Iterator iter = methods.iterator();
         while (iter.hasNext()) {
             Method method = (Method)iter.next();
             if (method.name().equals(name) &&
                 method.signature().equals(signature)) {
                 return method;
             }
         }
         return null;
     }
     public Location findLocation(ReferenceType rt, int lineNumber)
                          throws AbsentInformationException {
         List locs = rt.locationsOfLine(lineNumber);
         if (locs.size() == 0) {
             throw new IllegalArgumentException("Bad line number");
         } else if (locs.size() > 1) {
             throw new IllegalArgumentException("Line number has multiple locations");
         }
         return (Location)locs.get(0);
     }
     public BreakpointEvent resumeTo(String clsName, String methodName,
                                          String methodSignature) {
         ReferenceType rt = findReferenceType(clsName);
         if (rt == null) {
             rt = resumeToPrepareOf(clsName).referenceType();
         }
         Method method = findMethod(rt, methodName, methodSignature);
         if (method == null) {
             throw new IllegalArgumentException("Bad method name/signature");
         }
         return resumeTo(method.location());
     }
     public BreakpointEvent resumeTo(String clsName, int lineNumber) throws AbsentInformationException {
         ReferenceType rt = findReferenceType(clsName);
         if (rt == null) {
             rt = resumeToPrepareOf(clsName).referenceType();
         }
         return resumeTo(findLocation(rt, lineNumber));
     }
     public ClassPrepareEvent resumeToPrepareOf(String className) {
         final ClassPrepareRequest request =
             requestManager.createClassPrepareRequest();
         request.addClassFilter(className);
         request.addCountFilter(1);
         request.enable();
         return (ClassPrepareEvent)waitForRequestedEvent(request);
     }
     public void resumeToVMDisconnect() {
         try {
             traceln("TS: resumeToVMDisconnect: vm.resume called");
             vm.resume();
         } catch (VMDisconnectedException e) {
             // clean up below
         }
         waitForVMDisconnect();
     }
     public void shutdown() {
         shutdown(null);
     }
     public void shutdown(String message) {
         traceln("TS: shutdown: vmDied= " + vmDied +
                  ", vmDisconnected= " + vmDisconnected +
                  ", connection = " + connection);
         if ((connection != null)) {
             try {
                 connection.disposeVM();
              } catch (VMDisconnectedException e) {
                 // Shutting down after the VM has gone away. This is
                 // not an error, and we just ignore it.
             }
         } else {
             traceln("TS: shutdown: disposeVM not called");
         }
         if (message != null) {
             println(message);
         }
         vmDied = true;
         vmDisconnected = true;
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

agent/test/jdi/TestScaffold.java@dbb05f6d93c4 (annotated)

agent/test/jdi/TestScaffold.java