1 /*
   2  * Copyright (c) 2015, 2016, 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 8136421
  28  * @requires (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
  29  * @library /testlibrary /test/lib /
  30  * @library ../common/patches
  31  * @modules java.base/jdk.internal.misc
  32  * @modules java.base/jdk.internal.org.objectweb.asm
  33  *          java.base/jdk.internal.org.objectweb.asm.tree
  34  *          jdk.vm.ci/jdk.vm.ci.hotspot
  35  *          jdk.vm.ci/jdk.vm.ci.code
  36  * @ignore 8139700
  37  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  38  * @build sun.hotspot.WhiteBox
  39  *        compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
  40  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  41  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  42  * @run main/othervm -Xbootclasspath/a:.
  43  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  44  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  45  *                   compiler.jvmci.compilerToVM.DisassembleCodeBlobTest
  46  */
  47 
  48 package compiler.jvmci.compilerToVM;
  49 
  50 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  51 import jdk.vm.ci.code.InstalledCode;
  52 import jdk.test.lib.Asserts;
  53 import sun.hotspot.code.NMethod;
  54 
  55 import java.util.List;
  56 import jdk.test.lib.Utils;
  57 
  58 public class DisassembleCodeBlobTest {
  59 
  60     public static void main(String[] args) {
  61         DisassembleCodeBlobTest test
  62                 = new DisassembleCodeBlobTest();
  63         List<CompileCodeTestCase> testCases
  64                 = CompileCodeTestCase.generate(/* bci = */ -1);
  65         testCases.addAll(CompileCodeTestCase.generate(/* bci = */ 0));
  66         testCases.forEach(test::check);
  67         testCases.stream().findAny().ifPresent(test::checkZero);
  68         test.checkNull();
  69     }
  70 
  71     private void checkNull() {
  72         Utils.runAndCheckException(
  73                 () -> CompilerToVMHelper.disassembleCodeBlob(null),
  74                 NullPointerException.class);
  75     }
  76 
  77     private void checkZero(CompileCodeTestCase testCase) {
  78         System.out.println("checkZero for " + testCase);
  79         testCase.deoptimize();
  80         InstalledCode installedCode = testCase.toInstalledCode();
  81         String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
  82         Asserts.assertNull(str, testCase
  83                 + " : non-null return value for invalid installCode");
  84     }
  85 
  86     private void check(CompileCodeTestCase testCase) {
  87         System.out.println(testCase);
  88         // to have a clean state
  89         NMethod nMethod = testCase.deoptimizeAndCompile();
  90         if (nMethod == null) {
  91             throw new Error(testCase + " : method is not compiled");
  92         }
  93         InstalledCode installedCode = testCase.toInstalledCode();
  94         String str = CompilerToVMHelper.disassembleCodeBlob(installedCode);
  95         if (str != null) {
  96             Asserts.assertGT(str.length(), 0,
  97                    testCase +  " : returned string has to be non-zero length");
  98         }
  99         String str2 = CompilerToVMHelper.disassembleCodeBlob(installedCode);
 100         Asserts.assertEQ(str, str2,
 101                 testCase + " : 2nd invocation returned different value");
 102     }
 103 }
--- EOF ---