1 /* 2 * Copyright (c) 2013, 2025, 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 * @key randomness 27 * @bug 8026949 8164091 28 * @summary Test ensures correct VM output during startup 29 * @library /test/lib 30 * @requires vm.flagless 31 * @modules java.base/jdk.internal.misc 32 * java.management 33 * 34 * @run driver compiler.startup.StartupOutput 35 */ 36 37 package compiler.startup; 38 39 import jdk.test.lib.Platform; 40 import jdk.test.lib.process.OutputAnalyzer; 41 import jdk.test.lib.process.ProcessTools; 42 import jdk.test.lib.Utils; 43 import java.util.Random; 44 45 public class StartupOutput { 46 public static void main(String[] args) throws Exception { 47 ProcessBuilder pb; 48 OutputAnalyzer out; 49 Random rand = Utils.getRandomInstance(); 50 51 pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xint", "-XX:+DisplayVMOutputToStdout", "-version"); 52 out = new OutputAnalyzer(pb.start()); 53 out.shouldNotContain("no space to run compilers"); 54 out.shouldHaveExitValue(0); 55 56 pb = ProcessTools.createLimitedTestJavaProcessBuilder("-Xint", "-XX:ReservedCodeCacheSize=1770K", "-XX:InitialCodeCacheSize=4K", "-version"); 57 out = new OutputAnalyzer(pb.start()); 58 // The VM should not crash but may return an error message because we don't have enough space for adapters 59 int exitCode = out.getExitValue(); 60 if (exitCode != 1 && exitCode != 0) { 61 throw new Exception("VM crashed with exit code " + exitCode); 62 } 63 64 // On s390x, generated code is ~6x larger in fastdebug and ~1.4x in release builds vs. other archs, 65 // hence we require slightly more minimum space. 66 int minInitialSize = 2000 + (Platform.isS390x() ? 800 : 0); 67 for (int i = 0; i < 200; i++) { 68 int initialCodeCacheSizeInKb = minInitialSize + rand.nextInt(400); 69 int reservedCodeCacheSizeInKb = initialCodeCacheSizeInKb + rand.nextInt(200); 70 pb = ProcessTools.createLimitedTestJavaProcessBuilder("-XX:InitialCodeCacheSize=" + initialCodeCacheSizeInKb + "K", "-XX:ReservedCodeCacheSize=" + reservedCodeCacheSizeInKb + "k", "-version"); 71 out = new OutputAnalyzer(pb.start()); 72 exitCode = out.getExitValue(); 73 if (exitCode != 1 && exitCode != 0) { 74 throw new Exception("VM crashed with exit code " + exitCode); 75 } 76 // The VM should not crash but will probably fail with a "CodeCache is full. Compiler has been disabled." message 77 out.stdoutShouldNotContain("# A fatal error"); 78 } 79 } 80 }