1 /* 2 * Copyright (c) 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 * @key nmt 27 * @summary Running with NMT detail should produce expected stack traces. 28 * @library /testlibrary 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 */ 32 33 import jdk.test.lib.*; 34 import java.util.regex.Matcher; 35 import java.util.regex.Pattern; 36 37 public class CheckForProperDetailStackTrace { 38 /* The stack trace we look for by default. Note that :: has been replaced by .* 39 to make sure it maches even if the symbol is not unmangled. */ 40 public static String stackTraceDefault = 41 ".*ModuleEntryTable.*new_entry.*\n" + 42 ".*ModuleEntryTable.*locked_create_entry_or_null.*\n" + 43 ".*Modules.*define_module.*\n" + 44 ".*JVM_DefineModule.*\n"; 45 46 /* The stack trace we look for on Solaris and Windows slowdebug builds. For some 47 reason ALWAYSINLINE for AllocateHeap is ignored, so it appears in the stack strace. */ 48 public static String stackTraceAllocateHeap = 49 ".*AllocateHeap.*\n" + 50 ".*ModuleEntryTable.*new_entry.*\n" + 51 ".*ModuleEntryTable.*locked_create_entry_or_null.*\n" + 52 ".*Modules.*define_module.*\n"; 53 54 /* A symbol that should always be present in NMT detail output. */ 55 private static String expectedSymbol = 56 "locked_create_entry_or_null"; 57 58 private static final String jdkDebug = System.getProperty("jdk.debug"); 59 private static boolean isSlowDebugBuild() { 60 return (jdkDebug.toLowerCase().equals("slowdebug")); 61 } 62 63 public static void main(String args[]) throws Exception { 64 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( 65 "-XX:+UnlockDiagnosticVMOptions", 66 "-XX:NativeMemoryTracking=detail", 67 "-XX:+PrintNMTStatistics", 68 "-version"); 69 OutputAnalyzer output = new OutputAnalyzer(pb.start()); 70 71 output.shouldHaveExitValue(0); 72 73 // We should never see either of these frames because they are supposed to be skipped. */ 74 output.shouldNotContain("NativeCallStack::NativeCallStack"); 75 output.shouldNotContain("os::get_native_stack"); 76 77 // AllocateHeap shouldn't be in the output because it is suppose to always be inlined. 78 // We check for that here, but allow it for Windows and Solaris slowdebug builds because 79 // the compiler ends up not inlining AllocateHeap. 80 Boolean okToHaveAllocateHeap = 81 isSlowDebugBuild() && (Platform.isSolaris() || Platform.isWindows()); 82 if (!okToHaveAllocateHeap) { 83 output.shouldNotContain("AllocateHeap"); 84 } 85 86 // See if we have any stack trace symbols in the output 87 boolean hasSymbols = 88 output.getStdout().contains(expectedSymbol) || output.getStderr().contains(expectedSymbol); 89 if (!hasSymbols) { 90 // It's ok for ARM not to have symbols, because it does not support NMT detail 91 // when targeting thumb2. It's also ok for Windows not to have symbols, because 92 // they are only available if the symbols file is included with the build. 93 if (Platform.isWindows() || Platform.isARM()) { 94 return; // we are done 95 } 96 output.reportDiagnosticSummary(); 97 throw new RuntimeException("Expected symbol missing missing from output: " + expectedSymbol); 98 } 99 100 /* Make sure the expected NMT detail stack trace is found. */ 101 String expectedStackTrace = 102 (okToHaveAllocateHeap ? stackTraceAllocateHeap : stackTraceDefault); 103 if (!stackTraceMatches(expectedStackTrace, output)) { 104 output.reportDiagnosticSummary(); 105 throw new RuntimeException("Expected stack trace missing missing from output: " + expectedStackTrace); 106 } 107 } 108 109 public static boolean stackTraceMatches(String stackTrace, OutputAnalyzer output) { 110 Matcher stdoutMatcher = Pattern.compile(stackTrace, Pattern.MULTILINE).matcher(output.getStdout()); 111 Matcher stderrMatcher = Pattern.compile(stackTrace, Pattern.MULTILINE).matcher(output.getStderr()); 112 return (stdoutMatcher.find() || stderrMatcher.find()); 113 } 114 }