1 /*
   2  * Copyright (c) 2010, 2012, 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 import java.io.File;
  24 import java.io.IOException;
  25 
  26 /*
  27  * @test
  28  * @bug 6994753 7123582
  29  * @summary tests -XshowSettings options
  30  * @compile -XDignore.symbol.file Settings.java
  31  * @run main Settings
  32  * @author ksrini
  33  */
  34 public class Settings extends TestHelper {
  35     private static File testJar = null;
  36 
  37     static void init() throws IOException {
  38         if  (testJar != null) {
  39             return;
  40         }
  41         testJar = new File("test.jar");
  42         StringBuilder tsrc = new StringBuilder();
  43         tsrc.append("public static void main(String... args) {\n");
  44         tsrc.append("   for (String x : args) {\n");
  45         tsrc.append("        System.out.println(x);\n");
  46         tsrc.append("   }\n");
  47         tsrc.append("}\n");
  48         createJar(testJar, tsrc.toString());
  49     }
  50 
  51     static void checkContains(TestResult tr, String str) {
  52         if (!tr.contains(str)) {
  53             System.out.println(tr);
  54             throw new RuntimeException(str + " not found");
  55         }
  56     }
  57 
  58     static void checkNoContains(TestResult tr, String str) {
  59         if (tr.contains(str)) {
  60             System.out.println(tr.status);
  61             throw new RuntimeException(str + " found");
  62         }
  63     }
  64 
  65     private static final String VM_SETTINGS = "VM settings:";
  66     private static final String PROP_SETTINGS = "Property settings:";
  67     private static final String LOCALE_SETTINGS = "Locale settings:";
  68     private static final String STACKSIZE_SETTINGS = "Stack Size:";
  69     private static final String SYSTEM_SETTINGS = "Operating System Metrics:";
  70 
  71     static void containsAllOptions(TestResult tr) {
  72         checkContains(tr, VM_SETTINGS);
  73         checkContains(tr, PROP_SETTINGS);
  74         checkContains(tr, LOCALE_SETTINGS);
  75         if (System.getProperty("os.name").contains("Linux")) {
  76             checkContains(tr, SYSTEM_SETTINGS);
  77         }
  78     }
  79 
  80     static void runTestOptionDefault() throws IOException {
  81         String stackSize = "256"; // in kb
  82         if (getArch().equals("ppc64") || getArch().equals("ppc64le")) {
  83             stackSize = "800";
  84         } else if (getArch().equals("aarch64")) {
  85             /*
  86              * The max value of minimum stack size allowed for aarch64 can be estimated as
  87              * such: suppose the vm page size is 64KB and the test runs with a debug build,
  88              * the initial _java_thread_min_stack_allowed defined in os_linux_aarch64.cpp is
  89              * 72K, stack guard zones could take 192KB, and the shadow zone needs 128KB,
  90              * after aligning up all parts to the page size, the final size would be 448KB.
  91              * See details in JDK-8163363
  92              */
  93             stackSize = "448";
  94         }
  95         TestResult tr = null;
  96         tr = doExec(javaCmd, "-Xms64m", "-Xmx512m",
  97                 "-Xss" + stackSize + "k", "-XshowSettings", "-jar", testJar.getAbsolutePath());
  98         // Check the stack size logs printed by -XshowSettings to verify -Xss meaningfully.
  99         checkContains(tr, STACKSIZE_SETTINGS);
 100         containsAllOptions(tr);
 101         if (!tr.isOK()) {
 102             System.out.println(tr.status);
 103             throw new RuntimeException("test fails");
 104         }
 105         tr = doExec(javaCmd, "-Xms65536k", "-Xmx712m",
 106                 "-Xss" + stackSize + "000", "-XshowSettings", "-jar", testJar.getAbsolutePath());
 107         checkContains(tr, STACKSIZE_SETTINGS);
 108         containsAllOptions(tr);
 109         if (!tr.isOK()) {
 110             System.out.println(tr.status);
 111             throw new RuntimeException("test fails");
 112         }
 113     }
 114 
 115     static void runTestOptionSystem() throws IOException {
 116         TestResult tr = doExec(javaCmd, "-XshowSettings:system");
 117         if (System.getProperty("os.name").contains("Linux")) {
 118             checkNoContains(tr, VM_SETTINGS);
 119             checkNoContains(tr, PROP_SETTINGS);
 120             checkNoContains(tr, LOCALE_SETTINGS);
 121             checkContains(tr, SYSTEM_SETTINGS);
 122         } else {
 123             // -XshowSettings prints all available settings when
 124             // settings argument is not recognized.
 125             containsAllOptions(tr);
 126         }
 127     }
 128 
 129     static void runTestOptionAll() throws IOException {
 130         init();
 131         TestResult tr = null;
 132         tr = doExec(javaCmd, "-XshowSettings:all");
 133         containsAllOptions(tr);
 134     }
 135 
 136     static void runTestOptionVM() throws IOException {
 137         TestResult tr = null;
 138         tr = doExec(javaCmd, "-XshowSettings:vm");
 139         checkContains(tr, VM_SETTINGS);
 140         checkNoContains(tr, PROP_SETTINGS);
 141         checkNoContains(tr, LOCALE_SETTINGS);
 142     }
 143 
 144     static void runTestOptionProperty() throws IOException {
 145         TestResult tr = null;
 146         tr = doExec(javaCmd, "-XshowSettings:properties");
 147         checkNoContains(tr, VM_SETTINGS);
 148         checkContains(tr, PROP_SETTINGS);
 149         checkNoContains(tr, LOCALE_SETTINGS);
 150     }
 151 
 152     static void runTestOptionLocale() throws IOException {
 153         TestResult tr = null;
 154         tr = doExec(javaCmd, "-XshowSettings:locale");
 155         checkNoContains(tr, VM_SETTINGS);
 156         checkNoContains(tr, PROP_SETTINGS);
 157         checkContains(tr, LOCALE_SETTINGS);
 158     }
 159 
 160     static void runTestBadOptions() throws IOException {
 161         TestResult tr = null;
 162         tr = doExec(javaCmd, "-XshowSettingsBadOption");
 163         checkNoContains(tr, VM_SETTINGS);
 164         checkNoContains(tr, PROP_SETTINGS);
 165         checkNoContains(tr, LOCALE_SETTINGS);
 166         checkContains(tr, "Unrecognized option: -XshowSettingsBadOption");
 167     }
 168 
 169     static void runTest7123582() throws IOException {
 170         TestResult tr = null;
 171         tr = doExec(javaCmd, "-XshowSettings", "-version");
 172         if (!tr.isOK()) {
 173             System.out.println(tr.status);
 174             throw new RuntimeException("test fails");
 175         }
 176         containsAllOptions(tr);
 177     }
 178 
 179     public static void main(String... args) {
 180         try {
 181             runTestOptionAll();
 182             runTestOptionDefault();
 183             runTestOptionVM();
 184             runTestOptionProperty();
 185             runTestOptionLocale();
 186             runTestOptionSystem();
 187             runTestBadOptions();
 188             runTest7123582();
 189         } catch (IOException ioe) {
 190             throw new RuntimeException(ioe);
 191         }
 192     }
 193 }