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 * @test 26 * @bug 8173912 27 * @requires vm.jvmci 28 * @library / /test/lib 29 * @library ../common/patches 30 * @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot:+open 31 * @build sun.hotspot.WhiteBox 32 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 33 * sun.hotspot.WhiteBox$WhiteBoxPermission 34 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 35 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 36 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. 37 * compiler.jvmci.compilerToVM.GetFlagValueTest 38 */ 39 40 package compiler.jvmci.compilerToVM; 41 42 import jdk.test.lib.Asserts; 43 import jdk.vm.ci.hotspot.CompilerToVMHelper; 44 import jdk.test.lib.process.OutputAnalyzer; 45 import jdk.test.lib.process.ProcessTools; 46 import java.math.BigInteger; 47 import java.util.Arrays; 48 import java.util.regex.Pattern; 49 import java.util.regex.Matcher; 50 import sun.hotspot.WhiteBox; 51 52 public class GetFlagValueTest { 53 public static void main(String[] args) throws Exception { 54 try { 55 CompilerToVMHelper.getFlagValue(null); 56 Asserts.fail("Expected NullPointerException when calling getFlagValue(null)"); 57 } catch (NullPointerException e) { 58 // expected 59 } 60 61 Object missing = CompilerToVMHelper.getFlagValue("this is surely not a flag"); 62 Asserts.assertEquals(CompilerToVMHelper.CTVM, missing); 63 64 ProcessBuilder pb; 65 OutputAnalyzer out; 66 67 String[] arguments = {"-XX:+UnlockExperimentalVMOptions", "-XX:+EnableJVMCI", "-XX:+PrintFlagsFinal", "-version"}; 68 pb = ProcessTools.createJavaProcessBuilder(arguments); 69 out = new OutputAnalyzer(pb.start()); 70 71 out.shouldHaveExitValue(0); 72 String[] lines = out.getStdout().split("\\r?\\n"); 73 Asserts.assertTrue(lines.length > 1, "Expected output from -XX:+PrintFlagsFinal"); 74 75 final WhiteBox wb = WhiteBox.getWhiteBox(); 76 77 // Line example: ccstr PrintIdealGraphAddress = 127.0.0.1 {C2 notproduct} {default} 78 Pattern flagLine = Pattern.compile("(\\w+)\\s+(\\w+)\\s+:?= (?:(.+))\\{[^}]+\\}\\s+\\{[^}]+\\}"); 79 for (String line : lines) { 80 if (line.indexOf('=') != -1) { 81 line = line.trim(); 82 Matcher m = flagLine.matcher(line); 83 Asserts.assertTrue(m.matches(), "Unexpected line in -XX:+PrintFlagsFinal output: " + line); 84 String type = m.group(1); 85 String name = m.group(2); 86 String expect = m.group(3).trim(); 87 Object value = CompilerToVMHelper.getFlagValue(name); 88 Object wbValue = wb.getVMFlag(name); 89 Asserts.assertEquals(value, wbValue, "Value of flag " + name); 90 } 91 } 92 } 93 }