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test/hotspot/jtreg/runtime/NMT/CheckForProperDetailStackTrace.java

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  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 8133747 8218458
  27  * @summary Running with NMT detail should produce expected stack traces.
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management

  31  * @run driver CheckForProperDetailStackTrace
  32  */
  33 
  34 import jdk.test.lib.Platform;
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;


  37 import java.util.regex.Matcher;
  38 import java.util.regex.Pattern;
  39 
  40 /**
  41  * We are checking for details that should be seen with NMT detail enabled.
  42  * In particular the stack traces from os::malloc call sites should have 4
  43  * (based on NMT detail stack depth setting) 'interesting' frames and skip
  44  * the higher-level allocation frames and frames specific to the NMT logic.
  45  * The actual stack trace is affected by the native compiler's inlining ability
  46  * and the type of build, so we need to check for a number of possible stacks.
  47  * This information does not change often enough that we are concerned about the
  48  * stability of this test - rather we prefer to detect changes in compiler behaviour
  49  * through this test and update it accordingly.
  50  */
  51 public class CheckForProperDetailStackTrace {





  52 
  53     /* The stack trace we look for by default. Note that :: has been replaced by .*
  54        to make sure it matches even if the symbol is not unmangled.
  55     */
  56     private static String stackTraceDefault =
  57         ".*Hashtable.*allocate_new_entry.*\n" +
  58         ".*ModuleEntryTable.*new_entry.*\n" +
  59         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  60         ".*Modules.*define_module.*\n";
  61 
  62     /* Alternate stacktrace that we check if the default fails, because
  63        new_entry may be inlined.
  64     */
  65     private static String stackTraceAlternate =
  66         ".*Hashtable.*allocate_new_entry.*\n" +
  67         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  68         ".*Modules.*define_module.*\n" +
  69         ".*JVM_DefineModule.*\n";
  70 
  71     /* The stack trace we look for on AIX and Windows slowdebug builds.
  72        ALWAYSINLINE is only a hint and is ignored for AllocateHeap on the
  73        aforementioned platforms. When that happens allocate_new_entry is
  74        inlined instead.
  75     */
  76     private static String stackTraceAllocateHeap =
  77         ".*AllocateHeap.*\n" +
  78         ".*ModuleEntryTable.*new_entry.*\n" +
  79         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  80         ".*Modules.*define_module.*\n";
  81 
  82     /* A symbol that should always be present in NMT detail output. */
  83     private static String expectedSymbol = "locked_create_entry";
  84 
  85     public static void main(String args[]) throws Exception {












  86         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  87             "-XX:+UnlockDiagnosticVMOptions",
  88             "-XX:NativeMemoryTracking=detail",
  89             "-XX:+PrintNMTStatistics",
  90             "-version");

  91         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  92 
  93         output.shouldHaveExitValue(0);
  94 
  95         // We should never see either of these frames because they are supposed to be skipped.
  96         output.shouldNotContain("NativeCallStack::NativeCallStack");
  97         output.shouldNotContain("os::get_native_stack");
  98 
  99         // AllocateHeap shouldn't be in the output because it is supposed to always be inlined.
 100         // We check for that here, but allow it for Aix and Windows slowdebug builds
 101         // because the compiler ends up not inlining AllocateHeap.
 102         Boolean okToHaveAllocateHeap = Platform.isSlowDebugBuild() &&
 103                                        (Platform.isAix() || Platform.isWindows());
 104         if (!okToHaveAllocateHeap) {
 105             output.shouldNotContain("AllocateHeap");
 106         }
 107 
 108         // See if we have any stack trace symbols in the output
 109         boolean hasSymbols = output.getStdout().contains(expectedSymbol) ||
 110                              output.getStderr().contains(expectedSymbol);




  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 8133747 8218458
  27  * @summary Running with NMT detail should produce expected stack traces.
  28  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @compile ../modules/CompilerUtils.java
  32  * @run driver CheckForProperDetailStackTrace
  33  */
  34 
  35 import jdk.test.lib.Platform;
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 import java.nio.file.Path;
  39 import java.nio.file.Paths;
  40 import java.util.regex.Matcher;
  41 import java.util.regex.Pattern;
  42 
  43 /**
  44  * We are checking for details that should be seen with NMT detail enabled.
  45  * In particular the stack traces from os::malloc call sites should have 4
  46  * (based on NMT detail stack depth setting) 'interesting' frames and skip
  47  * the higher-level allocation frames and frames specific to the NMT logic.
  48  * The actual stack trace is affected by the native compiler's inlining ability
  49  * and the type of build, so we need to check for a number of possible stacks.
  50  * This information does not change often enough that we are concerned about the
  51  * stability of this test - rather we prefer to detect changes in compiler behaviour
  52  * through this test and update it accordingly.
  53  */
  54 public class CheckForProperDetailStackTrace {
  55     private static final String TEST_SRC = System.getProperty("test.src");
  56     private static final String TEST_CLASSES = System.getProperty("test.classes");
  57 
  58     private static final Path SRC_DIR = Paths.get(TEST_SRC, "src");
  59     private static final Path MODS_DIR = Paths.get(TEST_CLASSES, "mods");
  60 
  61     /* The stack trace we look for by default. Note that :: has been replaced by .*
  62        to make sure it matches even if the symbol is not unmangled.
  63     */
  64     private static String stackTraceDefault =
  65         ".*Hashtable.*allocate_new_entry.*\n" +
  66         ".*ModuleEntryTable.*new_entry.*\n" +
  67         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  68         ".*Modules.*define_module.*\n";
  69 
  70     /* Alternate stacktrace that we check if the default fails, because
  71        new_entry may be inlined.
  72     */
  73     private static String stackTraceAlternate =
  74         ".*Hashtable.*allocate_new_entry.*\n" +
  75         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  76         ".*Modules.*define_module.*\n" +
  77         ".*JVM_DefineModule.*\n";
  78 
  79     /* The stack trace we look for on AIX and Windows slowdebug builds.
  80        ALWAYSINLINE is only a hint and is ignored for AllocateHeap on the
  81        aforementioned platforms. When that happens allocate_new_entry is
  82        inlined instead.
  83     */
  84     private static String stackTraceAllocateHeap =
  85         ".*AllocateHeap.*\n" +
  86         ".*ModuleEntryTable.*new_entry.*\n" +
  87         ".*ModuleEntryTable.*locked_create_entry.*\n" +
  88         ".*Modules.*define_module.*\n";
  89 
  90     /* A symbol that should always be present in NMT detail output. */
  91     private static String expectedSymbol = "locked_create_entry";
  92 
  93     public static void main(String args[]) throws Exception {
  94         boolean compiled;
  95         // Compile module jdk.test declaration
  96         compiled = CompilerUtils.compile(
  97             SRC_DIR.resolve("jdk.test"),
  98             MODS_DIR.resolve("jdk.test"));
  99         if (!compiled) {
 100             throw new RuntimeException("Test failed to compile module jdk.test");
 101         }
 102 
 103         // If modules in the system image have been archived in CDS, they will not be
 104         // created again at run time. Explicitly use an external module to make sure
 105         // we have a runtime-defined ModuleEntry
 106         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 107             "-XX:+UnlockDiagnosticVMOptions",
 108             "-XX:NativeMemoryTracking=detail",
 109             "-XX:+PrintNMTStatistics",
 110             "-p", MODS_DIR.toString(),
 111             "-m", "jdk.test/test.Main");
 112         OutputAnalyzer output = new OutputAnalyzer(pb.start());
 113 
 114         output.shouldHaveExitValue(0);
 115 
 116         // We should never see either of these frames because they are supposed to be skipped.
 117         output.shouldNotContain("NativeCallStack::NativeCallStack");
 118         output.shouldNotContain("os::get_native_stack");
 119 
 120         // AllocateHeap shouldn't be in the output because it is supposed to always be inlined.
 121         // We check for that here, but allow it for Aix and Windows slowdebug builds
 122         // because the compiler ends up not inlining AllocateHeap.
 123         Boolean okToHaveAllocateHeap = Platform.isSlowDebugBuild() &&
 124                                        (Platform.isAix() || Platform.isWindows());
 125         if (!okToHaveAllocateHeap) {
 126             output.shouldNotContain("AllocateHeap");
 127         }
 128 
 129         // See if we have any stack trace symbols in the output
 130         boolean hasSymbols = output.getStdout().contains(expectedSymbol) ||
 131                              output.getStderr().contains(expectedSymbol);


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