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 package compiler.codecache.dtrace; 25 26 import jdk.test.lib.Utils; 27 import sun.hotspot.WhiteBox; 28 29 import java.lang.reflect.Executable; 30 import java.util.ArrayList; 31 import java.util.Arrays; 32 import java.util.Collections; 33 import java.util.List; 34 35 public class SegmentedCodeCacheDtraceTestWorker { 36 37 private static final String METHOD1_NAME = "foo"; 38 private static final String METHOD2_NAME = "bar"; 39 private static final String METHOD3_NAME = "baz"; 40 public static final List<Executable> TESTED_METHODS_LIST; 41 private final WhiteBox wb; 42 private final int compLevels[]; 43 44 static { 45 List<Executable> methods = new ArrayList<>(); 46 try { 47 // method order is important. Need to place methods in call order, 48 // to be able to verify results later 49 methods.add(SegmentedCodeCacheDtraceTestWorker.class.getMethod(METHOD1_NAME)); 50 methods.add(SegmentedCodeCacheDtraceTestWorker.class.getMethod(METHOD2_NAME)); 51 methods.add(SegmentedCodeCacheDtraceTestWorker.class.getMethod(METHOD3_NAME)); 52 } catch (NoSuchMethodException e) { 53 throw new Error("TESTBUG: no expected method found", e); 54 } 55 TESTED_METHODS_LIST = Collections.unmodifiableList(methods); 56 } 57 58 protected static final boolean BACKGROUND_COMPILATION 59 = WhiteBox.getWhiteBox().getBooleanVMFlag("BackgroundCompilation"); 60 61 public static void main(String[] args) { 62 if (args.length != 2 * TESTED_METHODS_LIST.size()) { 63 throw new Error("Usage: java <thisClass> <fooCompLevel> <fooInlined>" 64 + "<barCompLevel> <barInlined> " 65 + "<bazCompLevel> <bazInlined>"); 66 } else { 67 int compLevels[] = new int[TESTED_METHODS_LIST.size()]; 68 boolean inlines[] = new boolean[TESTED_METHODS_LIST.size()]; 69 for (int i = 0; i < TESTED_METHODS_LIST.size(); i++) { 70 compLevels[i] = Integer.parseInt(args[2 * i]); 71 inlines[i] = Boolean.parseBoolean(args[2 * i + 1]); 72 } 73 new SegmentedCodeCacheDtraceTestWorker(compLevels, inlines).test(); 74 } 75 } 76 77 public SegmentedCodeCacheDtraceTestWorker(int compLevels[], boolean inlines[]) { 78 wb = WhiteBox.getWhiteBox(); 79 this.compLevels = Arrays.copyOf(compLevels, compLevels.length); 80 for (int i = 0; i < compLevels.length; i++) { 81 if (inlines[i]) { 82 wb.testSetForceInlineMethod(TESTED_METHODS_LIST.get(i), true); 83 } else { 84 wb.testSetDontInlineMethod(TESTED_METHODS_LIST.get(i), true); 85 } 86 } 87 } 88 89 private void waitForCompilation(Executable executable, int compLevel) { 90 if (compLevel > 0) { 91 Utils.waitForCondition(() -> wb.isMethodCompiled(executable)); 92 } 93 } 94 95 protected void test() { 96 for (int i = 0; i < TESTED_METHODS_LIST.size(); i++) { 97 Executable method = TESTED_METHODS_LIST.get(i); 98 int compLevel = compLevels[i]; 99 wb.enqueueMethodForCompilation(method, compLevel); 100 waitForCompilation(method, compLevel); 101 } 102 foo(); 103 } 104 105 public static void foo() { 106 bar(); 107 } 108 109 public static void bar() { 110 baz(); 111 } 112 113 public static void baz() { 114 System.out.println("Reached baz method"); 115 } 116 }