1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 import java.io.File;
  26 import jdk.test.lib.process.OutputAnalyzer;
  27 import jdk.test.lib.process.ProcessTools;
  28 import jdk.test.lib.cds.CDSOptions;
  29 import jdk.test.lib.cds.CDSTestUtils;
  30 import jdk.test.lib.cds.CDSTestUtils.Result;
  31 
  32 /**
  33  * Base class for test cases in test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/
  34  */
  35 class DynamicArchiveTestBase {
  36     private static boolean executedIn_run = false;
  37 
  38     public static interface DynamicArchiveTest {
  39         public void run() throws Exception;
  40     }
  41 
  42     public static interface DynamicArchiveTestWithArgs {
  43         public void run(String args[]) throws Exception;
  44     }
  45 
  46 
  47     /*
  48      * Tests for dynamic archives should be written using this pattern:
  49      *
  50      * public class HelloDynamic extends DynamicArchiveTestBase {
  51      *     public static void main(String[] args) throws Exception {
  52      *        runTest(HelloDynamic::testDefaultBase); // launch one test case
  53      *     }
  54      *
  55      *     // the body of a test case
  56      *     static void testDefaultBase() throws Exception {
  57      *         String topArchiveName = getNewArchiveName("top");
  58      *         doTest(null, topArchiveName);
  59      *     }
  60      * }
  61      *
  62      * The reason for this is so that we can clean up the archive files
  63      * created by prior test cases. Otherwise tests with lots of
  64      * test cases may fill up the scratch directory.
  65      */
  66     public static void runTest(DynamicArchiveTest t) throws Exception {
  67         executedIn_run = true;
  68         try {
  69             TestCommon.deletePriorArchives();
  70             t.run();
  71         } finally {
  72             executedIn_run = false;
  73         }
  74     }
  75 
  76     public static void runTest(DynamicArchiveTestWithArgs t, String... args) throws Exception {
  77         executedIn_run = true;
  78         try {
  79             TestCommon.deletePriorArchives();
  80             t.run(args);
  81         } finally {
  82             executedIn_run = false;
  83         }
  84     }
  85 
  86     public static String getNewArchiveName() {
  87         return TestCommon.getNewArchiveName();
  88     }
  89     public static String getNewArchiveName(String stem) {
  90         return TestCommon.getNewArchiveName(stem);
  91     }
  92 
  93     /**
  94      * Execute a JVM using the base archive (given by baseArchiveName) with the command line
  95      * (given by cmdLineSuffix). At JVM exit, dump all eligible classes into the top archive
  96      * (give by topArchiveName).
  97      *
  98      * If baseArchiveName is null, use the JDK's default archive as the base archive.
  99      */
 100     public static Result dump2(String baseArchiveName, String topArchiveName, String ... cmdLineSuffix)
 101         throws Exception
 102     {
 103         String[] cmdLine = TestCommon.concat(
 104             "-XX:ArchiveClassesAtExit=" + topArchiveName);
 105         // to allow dynamic archive tests to be run in the "rt-non-cds-mode"
 106         cmdLine = TestCommon.concat(cmdLine, "-Xshare:auto");
 107         if (baseArchiveName != null) {
 108             cmdLine = TestCommon.concat(cmdLine, "-XX:SharedArchiveFile=" + baseArchiveName);
 109         }
 110         cmdLine = TestCommon.concat(cmdLine, cmdLineSuffix);
 111         return execProcess("dump", null, cmdLine);
 112     }
 113 
 114     public static Result dump2_WB(String baseArchiveName, String topArchiveName, String ... cmdLineSuffix)
 115         throws Exception
 116     {
 117         return dump2(baseArchiveName, topArchiveName,
 118                      TestCommon.concat(wbRuntimeArgs(), cmdLineSuffix));
 119     }
 120 
 121     /**
 122      * A convenience method similar to dump2, but always use the JDK's default archive
 123      * as the base archive.
 124      *
 125      * Most dynamicArchive/*.java test cases should be using this method instead of run2.
 126      */
 127     public static Result dump(String topArchiveName, String ... cmdLineSuffix)
 128         throws Exception
 129     {
 130         return dump2(null, topArchiveName, cmdLineSuffix);
 131     }
 132 
 133     /**
 134      * Dump the base archive. The JDK's default class list is used (unless otherwise specified
 135      * in cmdLineSuffix).
 136      */
 137     public static void dumpBaseArchive(String baseArchiveName, String ... cmdLineSuffix)
 138         throws Exception
 139     {
 140         CDSOptions opts = new CDSOptions();
 141         opts.setArchiveName(baseArchiveName);
 142         opts.addSuffix(cmdLineSuffix);
 143         opts.addSuffix("-Djava.class.path=");
 144         OutputAnalyzer out = CDSTestUtils.createArchive(opts);
 145         CDSTestUtils.checkDump(out);
 146     }
 147 
 148     /**
 149      * Same as dumpBaseArchive, but also add WhiteBox to the bootcp
 150      */
 151     public static void dumpBaseArchive_WB(String baseArchiveName, String ... cmdLineSuffix)
 152         throws Exception
 153     {
 154         dumpBaseArchive(baseArchiveName,
 155                         TestCommon.concat("-Xbootclasspath/a:" + getWhiteBoxJar(), cmdLineSuffix));
 156     }
 157 
 158     private static String getWhiteBoxJar() {
 159         String wbJar = ClassFileInstaller.getJarPath("WhiteBox.jar");
 160         if (!(new File(wbJar)).exists()) {
 161             throw new RuntimeException("Test error: your test must have " +
 162                                        "'@run driver ClassFileInstaller -jar WhiteBox.jar sun.hotspot.WhiteBox'");
 163         }
 164         return wbJar;
 165     }
 166 
 167     private static String[] wbRuntimeArgs() {
 168         return TestCommon.concat("-Xbootclasspath/a:" + getWhiteBoxJar(),
 169                                  "-XX:+UnlockDiagnosticVMOptions",
 170                                  "-XX:+WhiteBoxAPI");
 171     }
 172 
 173     /**
 174      * Execute a JVM using the base archive (given by baseArchiveName) and the top archive
 175      * (give by topArchiveName), using the command line (given by cmdLineSuffix).
 176      *
 177      * If baseArchiveName is null, use the JDK's default archive as the base archive.
 178      */
 179     public static Result run2(String baseArchiveName, String topArchiveName, String ... cmdLineSuffix)
 180         throws Exception {
 181         if (baseArchiveName == null && topArchiveName == null) {
 182             throw new RuntimeException("Both baseArchiveName and topArchiveName cannot be null at the same time.");
 183         }
 184         String archiveFiles = (baseArchiveName == null) ? topArchiveName :
 185             (topArchiveName == null) ? baseArchiveName :
 186             baseArchiveName + File.pathSeparator + topArchiveName;
 187         String[] cmdLine = TestCommon.concat(
 188             "-Xshare:on",
 189             "-XX:SharedArchiveFile=" + archiveFiles);
 190         cmdLine = TestCommon.concat(cmdLine, cmdLineSuffix);
 191         return execProcess("exec", null, cmdLine);
 192     }
 193 
 194     public static Result runWithRelativePath(String baseArchiveName, String topArchiveName,
 195                               String jarDir, String ... cmdLineSuffix)
 196         throws Exception {
 197         if (baseArchiveName == null && topArchiveName == null) {
 198             throw new RuntimeException("Both baseArchiveName and topArchiveName cannot be null at the same time.");
 199         }
 200         String archiveFiles = (baseArchiveName == null) ? topArchiveName :
 201             (topArchiveName == null) ? baseArchiveName :
 202             baseArchiveName + File.pathSeparator + topArchiveName;
 203         String[] cmdLine = TestCommon.concat(
 204             "-Xshare:on",
 205             "-XX:SharedArchiveFile=" + archiveFiles);
 206         cmdLine = TestCommon.concat(cmdLine, cmdLineSuffix);
 207         return execProcess("exec", jarDir, cmdLine);
 208     }
 209 
 210     public static Result run2_WB(String baseArchiveName, String topArchiveName, String ... cmdLineSuffix)
 211         throws Exception
 212     {
 213         return run2(baseArchiveName, topArchiveName,
 214                     TestCommon.concat(wbRuntimeArgs(), cmdLineSuffix));
 215     }
 216 
 217     /**
 218      * A convenience method similar to run2, but always use the JDK's default archive
 219      * as the base archive.
 220      *
 221      * Most dynamicArchive/*.java test cases should be using this method instead of run2.
 222      */
 223     public static Result run(String topArchiveName, String ... cmdLineSuffix)
 224         throws Exception
 225     {
 226         return run2(null, topArchiveName, cmdLineSuffix);
 227     }
 228 
 229     private static String getXshareMode(String[] cmdLine) {
 230         for (int i = 0; i <= cmdLine.length - 1; i++) {
 231             int j = cmdLine[i].indexOf("-Xshare:");
 232             if (j != -1) {
 233                 return (cmdLine[i].substring(j));
 234             }
 235         }
 236         return null;
 237    }
 238 
 239 
 240     private static Result execProcess(String mode, String jarDir, String[] cmdLine) throws Exception {
 241         if (!executedIn_run) {
 242             throw new Exception("Test error: dynamic archive tests must be executed via DynamicArchiveTestBase.run()");
 243         }
 244         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, cmdLine);
 245         if (jarDir != null) {
 246             pb.directory(new File(jarDir));
 247         }
 248         OutputAnalyzer output = TestCommon.executeAndLog(pb, mode);
 249         CDSOptions opts = new CDSOptions();
 250         String xShareMode = getXshareMode(cmdLine);
 251         if (xShareMode != null) {
 252             opts.setXShareMode(xShareMode);
 253         }
 254         return new Result(opts, output);
 255     }
 256 
 257     /**
 258      * A convenience method for dumping and running, using the default CDS archive from the
 259      * JDK. Both dumping and running should exit normally.
 260      */
 261     public static void dumpAndRun(String topArchiveName, String ... cmdLineSuffix) throws Exception {
 262         dump(topArchiveName, cmdLineSuffix).assertNormalExit();
 263         run(topArchiveName,  cmdLineSuffix).assertNormalExit();
 264     }
 265 }