| /* |
| * Copyright (c) 2016, 2019, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 jdk.jfr.jvm; |
| |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.List; |
| |
| import jdk.internal.misc.Unsafe; |
| import jdk.jfr.consumer.RecordedEvent; |
| import jdk.jfr.consumer.RecordingFile; |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| |
| /** |
| * @test |
| * @key jfr |
| * @summary Verifies that data associated with a running recording can be evacuated to an hs_err_pidXXX.jfr when the VM crashes |
| * @requires vm.hasJFR |
| * |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * java.management |
| * jdk.jfr |
| * |
| * @run main/othervm --add-exports=java.base/jdk.internal.misc=ALL-UNNAMED jdk.jfr.jvm.TestDumpOnCrash |
| */ |
| public class TestDumpOnCrash { |
| |
| private static final CharSequence LOG_FILE_EXTENSION = ".log"; |
| private static final CharSequence JFR_FILE_EXTENSION = ".jfr"; |
| |
| static class CrasherIllegalAccess { |
| public static void main(String[] args) { |
| Unsafe.getUnsafe().putInt(0L, 0); |
| } |
| } |
| |
| static class CrasherHalt { |
| public static void main(String[] args) { |
| System.out.println("Running Runtime.getRuntime.halt"); |
| Runtime.getRuntime().halt(17); |
| } |
| } |
| |
| static class CrasherSig { |
| public static void main(String[] args) throws Exception { |
| String signalName = args[0]; |
| System.out.println("Sending SIG" + signalName + " to process " + ProcessHandle.current().pid()); |
| Runtime.getRuntime().exec("kill -" + signalName + " " + ProcessHandle.current().pid()).waitFor(); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| verify(runProcess(CrasherIllegalAccess.class.getName(), "", true)); |
| verify(runProcess(CrasherIllegalAccess.class.getName(), "", false)); |
| verify(runProcess(CrasherHalt.class.getName(), "", true)); |
| verify(runProcess(CrasherHalt.class.getName(), "", false)); |
| |
| // Verification is excluded for the test case below until 8219680 is fixed |
| long pid = runProcess(CrasherSig.class.getName(), "FPE", true); |
| // @ignore 8219680 |
| // verify(pid); |
| } |
| |
| private static long runProcess(String crasher, String signal, boolean disk) throws Exception { |
| System.out.println("Test case for crasher " + crasher); |
| final String flightRecordingOptions = "dumponexit=true,disk=" + Boolean.toString(disk); |
| Process p = ProcessTools.createJavaProcessBuilder(true, |
| "-Xmx64m", |
| "-XX:-TransmitErrorReport", |
| "-XX:-CreateCoredumpOnCrash", |
| "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED", |
| "-XX:StartFlightRecording=" + flightRecordingOptions, |
| crasher, |
| signal) |
| .start(); |
| |
| OutputAnalyzer output = new OutputAnalyzer(p); |
| System.out.println("========== Crasher process output:"); |
| System.out.println(output.getOutput()); |
| System.out.println("=================================="); |
| |
| return p.pid(); |
| } |
| |
| private static void verify(long pid) throws IOException { |
| String fileName = "hs_err_pid" + pid + ".jfr"; |
| Path file = Paths.get(fileName).toAbsolutePath().normalize(); |
| |
| Asserts.assertTrue(Files.exists(file), "No emergency jfr recording file " + file + " exists"); |
| Asserts.assertNotEquals(Files.size(file), 0L, "File length 0. Should at least be some bytes"); |
| System.out.printf("File size=%d%n", Files.size(file)); |
| |
| List<RecordedEvent> events = RecordingFile.readAllEvents(file); |
| Asserts.assertFalse(events.isEmpty(), "No event found"); |
| System.out.printf("Found event %s%n", events.get(0).getEventType().getName()); |
| } |
| } |