1 /* 2 * Copyright (c) 2015, 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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64" 29 * @library /testlibrary /../../test/lib / 30 * @ignore 8139700 31 * @compile ../common/CompilerToVMHelper.java 32 * @build sun.hotspot.WhiteBox 33 * compiler.jvmci.compilerToVM.DisassembleCodeBlobTest 34 * @run main ClassFileInstaller sun.hotspot.WhiteBox 35 * sun.hotspot.WhiteBox$WhiteBoxPermission 36 * jdk.vm.ci.hotspot.CompilerToVMHelper 37 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 38 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. 39 * compiler.jvmci.compilerToVM.DisassembleCodeBlobTest 40 */ 41 42 package compiler.jvmci.compilerToVM; 43 44 import jdk.vm.ci.hotspot.CompilerToVMHelper; 45 import jdk.test.lib.Asserts; 46 import sun.hotspot.code.NMethod; 47 48 import java.util.List; 49 50 public class DisassembleCodeBlobTest { 51 52 public static void main(String[] args) { 53 DisassembleCodeBlobTest test 54 = new DisassembleCodeBlobTest(); 55 List<CompileCodeTestCase> testCases 56 = CompileCodeTestCase.generate(/* bci = */ -1); 57 testCases.addAll(CompileCodeTestCase.generate(/* bci = */ 0)); 58 testCases.forEach(test::check); 59 test.checkNull(); 60 } 61 62 private void checkNull() { 63 String str = CompilerToVMHelper.disassembleCodeBlob(0L); 64 Asserts.assertNull(str, "not null string returned for null pointer"); 65 } 66 67 private void check(CompileCodeTestCase testCase) { 68 System.out.println(testCase); 69 // to have a clean state 70 NMethod nMethod = testCase.deoptimizeAndCompile(); 71 if (nMethod == null) { 72 throw new Error(testCase + " : method is not compiled"); 73 } 74 String str = CompilerToVMHelper.disassembleCodeBlob(nMethod.address); 75 if (str != null) { 76 Asserts.assertGT(str.length(), 0, 77 testCase + " : returned string has to be non-zero length"); 78 } 79 String str2 = CompilerToVMHelper.disassembleCodeBlob(nMethod.address); 80 Asserts.assertEQ(str, str2, 81 testCase + " : 2nd invocation returned different value"); 82 } 83 }