| /* |
| * Copyright (c) 2018, 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. |
| * |
| * 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. |
| */ |
| |
| /** |
| * @test |
| * @bug 8174994 8200613 |
| * @summary Test the clhsdb commands 'printmdo', 'printall', 'jstack' on a CDS enabled corefile. |
| * @requires vm.cds |
| * @requires vm.hasSA |
| * @requires os.family != "windows" |
| * @requires vm.flavor == "server" |
| * @library /test/lib |
| * @modules java.base/jdk.internal.misc |
| * @run main/othervm/timeout=2400 -Xmx1g ClhsdbCDSCore |
| */ |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Scanner; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import jdk.internal.misc.Unsafe; |
| |
| import jdk.test.lib.Asserts; |
| import jdk.test.lib.Platform; |
| import jdk.test.lib.cds.CDSOptions; |
| import jdk.test.lib.cds.CDSTestUtils; |
| import jdk.test.lib.process.OutputAnalyzer; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.SA.SATestUtils; |
| |
| import jtreg.SkippedException; |
| |
| class CrashApp { |
| public static void main(String[] args) { |
| Unsafe.getUnsafe().putInt(0L, 0); |
| } |
| } |
| |
| public class ClhsdbCDSCore { |
| |
| private static final String TEST_CDS_CORE_FILE_NAME = "cds_core_file"; |
| private static final String LOCATIONS_STRING = "location: "; |
| private static final String RUN_SHELL_NO_LIMIT = "ulimit -c unlimited && "; |
| private static final String SHARED_ARCHIVE_NAME = "ArchiveForClhsdbCDSCore.jsa"; |
| private static final String CORE_PATTERN_FILE_NAME = "/proc/sys/kernel/core_pattern"; |
| |
| public static void main(String[] args) throws Exception { |
| System.out.println("Starting ClhsdbCDSCore test"); |
| cleanup(); |
| |
| try { |
| CDSOptions opts = (new CDSOptions()).setArchiveName(SHARED_ARCHIVE_NAME); |
| CDSTestUtils.createArchiveAndCheck(opts); |
| |
| String[] jArgs = { |
| "-Xmx512m", |
| "-XX:+UnlockDiagnosticVMOptions", |
| "-XX:SharedArchiveFile=" + SHARED_ARCHIVE_NAME, |
| "-XX:+CreateCoredumpOnCrash", |
| "-Xshare:auto", |
| "-XX:+ProfileInterpreter", |
| "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED", |
| CrashApp.class.getName() |
| }; |
| |
| OutputAnalyzer crashOut; |
| try { |
| List<String> options = new ArrayList<>(); |
| options.addAll(Arrays.asList(jArgs)); |
| crashOut = |
| ProcessTools.executeProcess(getTestJavaCommandlineWithPrefix( |
| RUN_SHELL_NO_LIMIT, options.toArray(new String[0]))); |
| } catch (Throwable t) { |
| throw new Error("Can't execute the java cds process.", t); |
| } |
| |
| System.out.println(crashOut.getOutput()); |
| String crashOutputString = crashOut.getOutput(); |
| SATestUtils.unzipCores(new File(".")); |
| String coreFileLocation = getCoreFileLocation(crashOutputString); |
| if (coreFileLocation == null) { |
| if (Platform.isOSX()) { |
| File coresDir = new File("/cores"); |
| if (!coresDir.isDirectory()) { |
| throw new Error("cores is not a directory"); |
| } |
| // the /cores directory is usually not writable on macOS 10.15 |
| final String osVersion = System.getProperty("os.version"); |
| if (osVersion == null) { |
| throw new Error("Cannot query the 'os.version' property!"); |
| } |
| if (!coresDir.canWrite()) { |
| if (osVersion.startsWith("10.15")) { |
| throw new SkippedException("/cores is not writable"); |
| } else { |
| throw new Error("cores does not have write permissions"); |
| } |
| } |
| } else if (Platform.isLinux()) { |
| // Check if a crash report tool is installed. |
| File corePatternFile = new File(CORE_PATTERN_FILE_NAME); |
| Scanner scanner = new Scanner(corePatternFile); |
| while (scanner.hasNextLine()) { |
| String line = scanner.nextLine(); |
| line = line.trim(); |
| System.out.println(line); |
| if (line.startsWith("|")) { |
| System.out.println( |
| "\nThis system uses a crash report tool ($cat /proc/sys/kernel/core_pattern).\n" + |
| "Core files might not be generated. Please reset /proc/sys/kernel/core_pattern\n" + |
| "to enable core generation. Skipping this test."); |
| cleanup(); |
| throw new SkippedException("This system uses a crash report tool"); |
| } |
| } |
| } |
| throw new Error("Couldn't find core file location in: '" + crashOutputString + "'"); |
| } |
| try { |
| Asserts.assertGT(new File(coreFileLocation).length(), 0L, "Unexpected core size"); |
| Files.move(Paths.get(coreFileLocation), Paths.get(TEST_CDS_CORE_FILE_NAME)); |
| } catch (IOException ioe) { |
| throw new Error("Can't move core file: " + ioe, ioe); |
| } |
| |
| ClhsdbLauncher test = new ClhsdbLauncher(); |
| |
| // Ensure that UseSharedSpaces is turned on. |
| List<String> cmds = List.of("flags UseSharedSpaces"); |
| |
| String useSharedSpacesOutput = test.runOnCore(TEST_CDS_CORE_FILE_NAME, cmds, |
| null, null); |
| |
| if (useSharedSpacesOutput == null) { |
| // Output could be null due to attach permission issues. |
| cleanup(); |
| throw new SkippedException("Could not determine the UseSharedSpaces value"); |
| } |
| |
| if (!useSharedSpacesOutput.contains("true")) { |
| // CDS archive is not mapped. Skip the rest of the test. |
| cleanup(); |
| throw new SkippedException("The CDS archive is not mapped"); |
| } |
| |
| cmds = List.of("printmdo -a", "printall", "jstack -v"); |
| |
| Map<String, List<String>> expStrMap = new HashMap<>(); |
| Map<String, List<String>> unExpStrMap = new HashMap<>(); |
| expStrMap.put("printmdo -a", List.of( |
| "CounterData", |
| "BranchData")); |
| unExpStrMap.put("printmdo -a", List.of( |
| "No suitable match for type of address")); |
| expStrMap.put("printall", List.of( |
| "aload_0", |
| "_nofast_aload_0", |
| "_nofast_getfield", |
| "_nofast_putfield", |
| "Constant Pool of", |
| "public static void main\\(java.lang.String\\[\\]\\)", |
| "Bytecode", |
| "invokevirtual", |
| "checkcast", |
| "Exception Table", |
| "invokedynamic")); |
| unExpStrMap.put("printall", List.of( |
| "sun.jvm.hotspot.types.WrongTypeException", |
| "illegal code", |
| "Failure occurred at bci", |
| "No suitable match for type of address")); |
| expStrMap.put("jstack -v", List.of( |
| "Common-Cleaner", |
| "Method*")); |
| unExpStrMap.put("jstack -v", List.of( |
| "sun.jvm.hotspot.debugger.UnmappedAddressException")); |
| test.runOnCore(TEST_CDS_CORE_FILE_NAME, cmds, expStrMap, unExpStrMap); |
| } catch (SkippedException e) { |
| throw e; |
| } catch (Exception ex) { |
| throw new RuntimeException("Test ERROR " + ex, ex); |
| } |
| cleanup(); |
| System.out.println("Test PASSED"); |
| } |
| |
| // lets search for a few possible locations using process output and return existing location |
| private static String getCoreFileLocation(String crashOutputString) { |
| Asserts.assertTrue(crashOutputString.contains(LOCATIONS_STRING), |
| "Output doesn't contain the location of core file."); |
| String stringWithLocation = Arrays.stream(crashOutputString.split("\\r?\\n")) |
| .filter(str -> str.contains(LOCATIONS_STRING)) |
| .findFirst() |
| .get(); |
| stringWithLocation = stringWithLocation.substring(stringWithLocation |
| .indexOf(LOCATIONS_STRING) + LOCATIONS_STRING.length()); |
| System.out.println("getCoreFileLocation found stringWithLocation = " + stringWithLocation); |
| String coreWithPid; |
| if (stringWithLocation.contains("or ")) { |
| Matcher m = Pattern.compile("or.* ([^ ]+[^\\)])\\)?").matcher(stringWithLocation); |
| if (!m.find()) { |
| throw new Error("Couldn't find path to core inside location string"); |
| } |
| coreWithPid = m.group(1); |
| } else { |
| coreWithPid = stringWithLocation.trim(); |
| } |
| if (new File(coreWithPid).exists()) { |
| return coreWithPid; |
| } |
| String justCore = Paths.get("core").toString(); |
| if (new File(justCore).exists()) { |
| return justCore; |
| } |
| Path coreWithPidPath = Paths.get(coreWithPid); |
| String justFile = coreWithPidPath.getFileName().toString(); |
| if (new File(justFile).exists()) { |
| return justFile; |
| } |
| Path parent = coreWithPidPath.getParent(); |
| if (parent != null) { |
| String coreWithoutPid = parent.resolve("core").toString(); |
| if (new File(coreWithoutPid).exists()) { |
| return coreWithoutPid; |
| } |
| } |
| return null; |
| } |
| |
| private static String[] getTestJavaCommandlineWithPrefix(String prefix, String... args) { |
| try { |
| String cmd = ProcessTools.getCommandLine(ProcessTools.createJavaProcessBuilder(true, args)); |
| return new String[]{"sh", "-c", prefix + cmd}; |
| } catch (Throwable t) { |
| throw new Error("Can't create process builder: " + t, t); |
| } |
| } |
| |
| private static void cleanup() { |
| remove(TEST_CDS_CORE_FILE_NAME); |
| remove(SHARED_ARCHIVE_NAME); |
| } |
| |
| private static void remove(String item) { |
| File toDelete = new File(item); |
| toDelete.delete(); |
| } |
| } |