243 lines
8.9 KiB
Java
243 lines
8.9 KiB
Java
/*
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* Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Note 1: JITDebug.java is no longer a standalone regression test,
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* due to chronic test failures on win32 platforms. When testing,
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* use the wrapper script (JITDebug.sh) instead, which will in turn
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* invoke this program.
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*
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* The problems are related to inconsistent use of "SystemRoot"
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* versus "SYSTEMROOT" environment variables in different win32 O/S
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* installations. Refer to the Comments and Evaluation on bugs
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* 4522770 and 4461673 for more information.
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*
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* Undefined SystemRoot in a win32 environment causes the O/S socket()
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* layer to fail with WSAEPROVIDERFAILEDINIT. The workaround used by
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* JITDebug.sh and JITDebug.java is to select the dt_shmem transport
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* on any win32 platform where SystemRoot is not found.
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*
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* Note 2: What seems to be an excessive use of System.xxx.flush();
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* is actually necessary to combat lost output on win32 systems.
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*
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* @t e s t
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* @bug 4291701 4376819 4422312 4522770
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* @summary Test JIT debugging -
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* assure that launching on uncaught exception works
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*
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* @author Robert Field
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* @run driver JITDebug
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*/
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import com.sun.jdi.*;
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import com.sun.jdi.connect.*;
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import java.util.*;
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import java.io.*;
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/*
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* This class implements three separate small programs, each
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* of which (directly or indirectly) invokes the next. These
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* programs are:
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* test launcher -
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* Runs the debug target. It exists to work around a
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* bug in the test tools which do not allow quoted spaces
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* in command lines. It launchs the debug target in
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* such a way that when it encounters an uncaught exception
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* it (in turn) will launch the trivial debugger.
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* debug target -
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* A one line program which throws an uncaught exception.
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* trivial debugger -
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* A debugger which attachs to the debug target and shuts
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* it down with a zero exit code.
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* These programs are differentiated by their command line arguments:
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* test launcher - (no args)
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* debug target - ("TARGET")
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* trivial debugger - ("DEBUGGER", host and port)
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*/
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public class JITDebug {
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public static void main(String[] args) {
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if (!new JITDebug().parseArgs(args)) {
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throw new RuntimeException("Unexpected command line arguments: "
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+ args);
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}
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}
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boolean parseArgs(String[] args) {
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switch (args.length) {
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case 0:
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testLaunch();
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return true;
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case 1:
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if (args[0].equals("TARGET")) {
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debugTarget();
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return true;
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} else {
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return false;
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}
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case 3:
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if (args[0].equals("DEBUGGER")) {
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trivialDebugger(args[2]);
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return true;
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} else {
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return false;
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}
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default:
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return false;
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}
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}
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void testLaunch() {
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class DisplayOutput extends Thread {
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InputStream in;
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DisplayOutput(InputStream in) {
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this.in = in;
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}
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public void run() {
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try {
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transfer();
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} catch (IOException exc) {
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new RuntimeException("Unexpected exception: " + exc);
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}
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}
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void transfer() throws IOException {
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int ch;
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while ((ch = in.read()) != -1) {
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System.out.print((char)ch);
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}
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in.close();
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}
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}
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String transportMethod = System.getProperty("TRANSPORT_METHOD");
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if (transportMethod == null) {
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transportMethod = "dt_socket"; //Default to socket transport.
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}
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String javaExe = System.getProperty("java.home") +
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File.separator + "bin" + File.separator +"java";
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List largs = new ArrayList();
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largs.add(javaExe);
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largs.add("-agentlib:jdwp=transport=" + transportMethod + ",server=y,onuncaught=y," +
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"launch=" +
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javaExe + " -DTRANSPORT_METHOD=" + transportMethod + " " +
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this.getClass().getName() + " DEBUGGER ");
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largs.add("JITDebug");
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largs.add("TARGET");
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System.out.println("Launching: " + largs);
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String[] sargs = (String[])largs.toArray(new String[largs.size()]);
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Runtime rt = Runtime.getRuntime();
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try {
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Process proc = rt.exec(VMConnection.insertDebuggeeVMOptions(sargs));
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DisplayOutput inThread = new DisplayOutput(proc.getInputStream());
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DisplayOutput erThread = new DisplayOutput(proc.getErrorStream());
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inThread.start(); // transfer all in&err
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erThread.start();
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inThread.join(); // make sure they are done
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erThread.join();
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int exitValue = proc.waitFor();
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if (exitValue != 0) {
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throw new RuntimeException("Failure exit status: " +
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exitValue);
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}
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} catch (Exception exc) {
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throw new RuntimeException("Unexpected exception: " + exc);
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}
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System.out.println("JIT Debugging test PASSED");
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}
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void displayOutput(InputStream in) throws IOException {
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}
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// Target VM code
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void debugTarget() {
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System.out.flush();
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System.out.println("trigger onuncaught launch");
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System.out.flush();
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throw new RuntimeException("Start-up onuncaught handling");
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}
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void trivialDebugger(String transportAddress) {
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System.out.println("trivial debugger started");
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String transportMethod = System.getProperty("TRANSPORT_METHOD");
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String connectorName = null;
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if ("dt_shmem".equals(transportMethod)) {
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connectorName = "com.sun.jdi.SharedMemoryAttach";
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} else if ("dt_socket".equals(transportMethod)) {
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connectorName = "com.sun.jdi.SocketAttach";
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} else {
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System.err.flush();
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System.err.println("Unknown transportMethod: " + transportMethod + " - hanging");
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System.err.flush();
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hang();
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}
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List conns = Bootstrap.virtualMachineManager().attachingConnectors();
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for (Iterator it = conns.iterator(); it.hasNext(); ) {
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AttachingConnector conn = (AttachingConnector)it.next();
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if (conn.name().equals(connectorName)) {
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doAttach(connectorName, conn, transportAddress);
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return;
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}
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}
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System.err.flush();
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System.err.println("No attaching connector matching: " + connectorName + " - hanging");
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System.err.flush();
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hang();
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}
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void doAttach(String connectorName, AttachingConnector conn, String transportAddress) {
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Map connArgs = conn.defaultArguments();
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if ("com.sun.jdi.SharedMemoryAttach".equals(connectorName)) {
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Connector.Argument portArg = (Connector.Argument)connArgs.get("name");
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portArg.setValue(transportAddress);
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} else {
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Connector.Argument portArg = (Connector.Argument)connArgs.get("port");
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portArg.setValue(transportAddress);
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}
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try {
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VirtualMachine vm = conn.attach(connArgs);
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System.out.println("attached to: " + transportAddress);
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vm.exit(0); // we are happy - terminate VM with no error
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System.out.println("we are happy - terminated VM with no error");
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} catch (Exception exc) {
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System.err.flush();
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System.err.println("Exception: " + exc + " - hanging");
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System.err.flush();
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hang();
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}
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}
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/** Hang so that test fails */
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void hang() {
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try {
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// ten minute nap
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Thread.currentThread().sleep(10 * 60 * 1000);
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} catch (InterruptedException exc) {
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// shouldn't happen
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}
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}
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}
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