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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * @test 28 * @summary Intrinsic for JFR 29 * @key jfr 30 * @library /test/lib 31 * 32 * @modules jdk.jfr/jdk.jfr.internal 33 * java.base/jdk.internal.misc 34 * java.management 35 * 36 * @build sun.hotspot.WhiteBox 37 * @build ClassFileInstaller 38 * 39 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 40 * sun.hotspot.WhiteBox$WhiteBoxPermission 41 * 42 * @run main/othervm -Xbootclasspath/a:. -ea -Xmixed -Xbatch -XX:TieredStopAtLevel=4 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 43 * jdk.jfr.jvm.TestJFRIntrinsic 44 * 45 * @run main/othervm -Xbootclasspath/a:. -ea -Xmixed -Xbatch -XX:TieredStopAtLevel=1 -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 46 * jdk.jfr.jvm.TestJFRIntrinsic 47 */ 48 49 package jdk.jfr.jvm; 50 51 import java.lang.reflect.Method; 52 import java.util.Arrays; 53 import java.util.stream.IntStream; 54 import jdk.jfr.internal.JVM; 55 import jdk.test.lib.Platform; 56 import sun.hotspot.WhiteBox; 57 import sun.hotspot.code.NMethod; 58 59 public class TestJFRIntrinsic { 60 61 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); 62 public Object eventWriter; 63 64 public static void main(String... args) throws Exception { 65 /* 66 Temporarily excluded until getClassId is reworked to accommodate epoch shift tagging 67 Method classid = TestJFRIntrinsic.class.getDeclaredMethod("getClassIdIntrinsic", Class.class); 68 ti.runIntrinsicTest(classid); 69 */ 70 TestJFRIntrinsic ti = new TestJFRIntrinsic(); 71 Method eventWriterMethod = TestJFRIntrinsic.class.getDeclaredMethod("getEventWriterIntrinsic", Class.class); 72 ti.runIntrinsicTest(eventWriterMethod); 73 } 74 75 /* 76 public void getClassIdIntrinsic(Class<?> cls) { 77 long exp = JVM.getClassId(cls); 78 if (exp == 0) { 79 throw new RuntimeException("Class id is zero"); 80 } 81 } 82 */ 83 84 public void getEventWriterIntrinsic(Class<?> cls) { 85 Object o = JVM.getEventWriter(); 86 if (o != null) { 87 eventWriter = o; 88 } 89 } 90 91 void runIntrinsicTest(Method method) throws Exception { 92 if (getMaxCompilationLevel() < 1) { 93 /* no compiler */ 94 return; 95 } 96 /* load it */ 97 try { 98 method.invoke(this, TestJFRIntrinsic.class); 99 } catch(Exception e) { 100 throw new RuntimeException(e); 101 } 102 103 int[] lvls = getAvailableCompilationLevels(); 104 for (int i : lvls) { 105 if (!WHITE_BOX.enqueueMethodForCompilation(method, i)) { 106 throw new RuntimeException("Failed to enqueue method on level: " + i); 107 } 108 109 if (WHITE_BOX.isMethodCompiled(method)) { 110 NMethod nm = NMethod.get(method, false); 111 if (nm.comp_level != i) { 112 throw new RuntimeException("Failed to compile on correct level: " + i); 113 } 114 System.out.println("Compiled " + method + " on level " + i); 115 } 116 } 117 } 118 119 /* below is copied from CompilerUtil in hotspot test lib, removed this when it's moved */ 120 121 /** 122 * Returns available compilation levels 123 * 124 * @return int array with compilation levels 125 */ 126 public static int[] getAvailableCompilationLevels() { 127 if (!WhiteBox.getWhiteBox().getBooleanVMFlag("UseCompiler")) { 128 return new int[0]; 129 } 130 if (WhiteBox.getWhiteBox().getBooleanVMFlag("TieredCompilation")) { 131 Long flagValue = WhiteBox.getWhiteBox() 132 .getIntxVMFlag("TieredStopAtLevel"); 133 int maxLevel = flagValue.intValue(); 134 return IntStream.rangeClosed(1, maxLevel).toArray(); 135 } else { 136 if (Platform.isServer() && !Platform.isEmulatedClient()) { 137 return new int[]{4}; 138 } 139 if (Platform.isClient() || Platform.isMinimal() || Platform.isEmulatedClient()) { 140 return new int[]{1}; 141 } 142 } 143 return new int[0]; 144 } 145 146 /** 147 * Returns maximum compilation level available 148 * @return an int value representing maximum compilation level available 149 */ 150 public static int getMaxCompilationLevel() { 151 return Arrays.stream(getAvailableCompilationLevels()) 152 .max() 153 .getAsInt(); 154 } 155 }