1 /* 2 * Copyright (c) 2014, 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 * @test LockCompilationTest 26 * @bug 8059624 8152169 27 * @library /testlibrary /test/lib / 28 * @modules java.base/jdk.internal.misc 29 * @modules java.management 30 * @build LockCompilationTest 31 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 32 * sun.hotspot.WhiteBox$WhiteBoxPermission 33 * @run main/othervm -Xbootclasspath/a:. -Xmixed -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:-UseCounterDecay LockCompilationTest 34 * @summary testing of WB::lock/unlockCompilation() 35 */ 36 37 import java.io.OutputStream; 38 import java.io.PrintWriter; 39 import java.util.concurrent.BrokenBarrierException; 40 import java.util.concurrent.CyclicBarrier; 41 42 import compiler.whitebox.CompilerWhiteBoxTest; 43 import jdk.test.lib.Asserts; 44 45 public class LockCompilationTest extends CompilerWhiteBoxTest { 46 47 public static void main(String[] args) throws Exception { 48 // This case waits for 5 seconds and verifies that the method hasn't been 49 // compiled during that time. Only do that for one of the test cases. 50 51 // Only compile SimpleTestCaseHelper.method and exclude all other to ensure no 52 // contention on the compile queue causes problems. 53 String directive = 54 "[{ match:\"*SimpleTestCaseHelper.method\", Exclude:false}, " + 55 " { match:\"*.*\", Exclude:true}]"; 56 if (WHITE_BOX.addCompilerDirective(directive) != 2) { 57 throw new RuntimeException("Could not add directive"); 58 } 59 try { 60 CompilerWhiteBoxTest.main(LockCompilationTest::new, new String[] {"METHOD_TEST"}); 61 } finally { 62 WHITE_BOX.removeCompilerDirective(2); 63 } 64 65 } 66 67 private LockCompilationTest(TestCase testCase) { 68 super(testCase); 69 // to prevent inlining of #method 70 WHITE_BOX.testSetDontInlineMethod(method, true); 71 } 72 73 protected void test() throws Exception { 74 checkNotCompiled(); 75 76 System.out.println("locking compilation"); 77 WHITE_BOX.lockCompilation(); 78 79 try { 80 System.out.println("trying to compile"); 81 compile(); 82 // to check if it works correctly w/ safepoints 83 System.out.println("going to safepoint"); 84 WHITE_BOX.fullGC(); 85 // Sleep a while and then make sure the compile is still waiting 86 Thread.sleep(5000); 87 88 Asserts.assertTrue( 89 WHITE_BOX.isMethodQueuedForCompilation(method), 90 method + " must be in queue"); 91 Asserts.assertFalse( 92 WHITE_BOX.isMethodCompiled(method, false), 93 method + " must be not compiled"); 94 Asserts.assertEQ( 95 WHITE_BOX.getMethodCompilationLevel(method, false), 0, 96 method + " comp_level must be == 0"); 97 Asserts.assertFalse( 98 WHITE_BOX.isMethodCompiled(method, true), 99 method + " must be not osr_compiled"); 100 Asserts.assertEQ( 101 WHITE_BOX.getMethodCompilationLevel(method, true), 0, 102 method + " osr_comp_level must be == 0"); 103 } finally { 104 System.out.println("unlocking compilation"); 105 WHITE_BOX.unlockCompilation(); 106 } 107 waitBackgroundCompilation(); 108 Asserts.assertFalse( 109 WHITE_BOX.isMethodQueuedForCompilation(method), 110 method + " must not be in queue"); 111 } 112 } 113