1 /*
   2  * Copyright (c) 2016, 2018, 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 /**
  26  * @test
  27  * @bug 8067744
  28  * @comment Test uses custom launcher that starts VM in primordial thread. This is
  29  *          not possible on aix.
  30  * @requires os.family != "aix"
  31  * @library /test/lib
  32  * @modules java.base/jdk.internal.misc
  33  * @run main/native FPRegs
  34  */
  35 
  36 import jdk.test.lib.Platform;
  37 import jdk.test.lib.Utils;
  38 import jdk.test.lib.process.ProcessTools;
  39 import jdk.test.lib.process.OutputAnalyzer;
  40 
  41 import java.io.File;
  42 import java.io.IOException;
  43 import java.nio.file.Files;
  44 import java.nio.file.Path;
  45 import java.nio.file.Paths;
  46 import java.util.Optional;
  47 
  48 public class FPRegs {
  49     public static void main(String[] args) throws IOException {
  50         Path launcher = Paths.get(System.getProperty("test.nativepath"), "FPRegs" + (Platform.isWindows() ? ".exe" : ""));
  51         System.out.println("Launcher = " + launcher + (Files.exists(launcher) ? " (exists)" : " (not exists)"));
  52         Path jvmLib = findJVM();
  53         ProcessBuilder pb = new ProcessBuilder(launcher.toString(), jvmLib.toString());
  54         // bin as working directory to let Windows load dll
  55         pb.directory(jvmLib.getParent().getParent().toFile());
  56         OutputAnalyzer outputf = new OutputAnalyzer(pb.start());
  57         outputf.shouldHaveExitValue(0);
  58     }
  59 
  60     static Path findJVM() throws IOException {
  61         String root = Utils.TEST_JDK;
  62         String lib = System.mapLibraryName("jvm");
  63         System.out.println("Root = " + root);
  64         System.out.println("Library = " + lib);
  65 
  66         Optional<Path> jvmLib = Files.find(new File(root).toPath(), 4, (p, attr) -> p.toFile().getName().equals(lib)).findFirst();
  67         Path p = null;
  68         if (jvmLib.isPresent()) {
  69             p = jvmLib.get().toRealPath();
  70             System.out.println("JVM = " + p);
  71         } else {
  72             System.out.println("TESTBUG: JVM not found in ");
  73             Files.walk(new File(root).toPath(), 4).map(Path::toString).forEach(System.out::println);
  74         }
  75         return p;
  76     }
  77 }
  78