1 /*
2 * Copyright (c) 2011, 2018, 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 package org.graalvm.compiler.hotspot;
26
27 import static jdk.vm.ci.common.InitTimer.timer;
28 import static jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime;
29 import static org.graalvm.compiler.core.common.GraalOptions.GeneratePIC;
30 import static org.graalvm.compiler.core.common.GraalOptions.HotSpotPrintInlining;
31
32 import java.io.PrintStream;
33 import java.util.ArrayList;
34 import java.util.EnumMap;
35 import java.util.List;
36 import java.util.Map;
37 import java.util.concurrent.atomic.AtomicReference;
38
39 import jdk.internal.vm.compiler.collections.EconomicMap;
40 import jdk.internal.vm.compiler.collections.EconomicSet;
41 import jdk.internal.vm.compiler.collections.Equivalence;
42 import jdk.internal.vm.compiler.collections.UnmodifiableMapCursor;
43 import org.graalvm.compiler.api.replacements.SnippetReflectionProvider;
44 import org.graalvm.compiler.api.runtime.GraalRuntime;
45 import org.graalvm.compiler.core.CompilationWrapper.ExceptionAction;
46 import org.graalvm.compiler.core.common.CompilationIdentifier;
47 import org.graalvm.compiler.core.common.GraalOptions;
48 import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
49 import org.graalvm.compiler.core.target.Backend;
50 import org.graalvm.compiler.debug.DebugContext;
51 import org.graalvm.compiler.debug.DebugContext.Description;
52 import org.graalvm.compiler.debug.DebugHandlersFactory;
53 import org.graalvm.compiler.debug.DebugOptions;
54 import org.graalvm.compiler.debug.DiagnosticsOutputDirectory;
55 import org.graalvm.compiler.debug.GlobalMetrics;
56 import org.graalvm.compiler.debug.GraalError;
57 import org.graalvm.compiler.debug.TTY;
58 import org.graalvm.compiler.hotspot.CompilationStatistics.Options;
59 import org.graalvm.compiler.hotspot.CompilerConfigurationFactory.BackendMap;
60 import org.graalvm.compiler.hotspot.debug.BenchmarkCounters;
61 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
62 import org.graalvm.compiler.nodes.spi.StampProvider;
63 import org.graalvm.compiler.options.EnumOptionKey;
64 import org.graalvm.compiler.options.OptionDescriptor;
65 import org.graalvm.compiler.options.OptionDescriptors;
66 import org.graalvm.compiler.options.OptionKey;
67 import org.graalvm.compiler.options.OptionValues;
68 import org.graalvm.compiler.options.OptionsParser;
69 import org.graalvm.compiler.phases.tiers.CompilerConfiguration;
70 import org.graalvm.compiler.replacements.SnippetCounter;
71 import org.graalvm.compiler.replacements.SnippetCounter.Group;
72 import org.graalvm.compiler.runtime.RuntimeProvider;
73 import org.graalvm.compiler.serviceprovider.GraalServices;
74
75 import jdk.vm.ci.code.Architecture;
76 import jdk.vm.ci.code.stack.StackIntrospection;
77 import jdk.vm.ci.common.InitTimer;
78 import jdk.vm.ci.hotspot.HotSpotCompilationRequest;
79 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
80 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
81 import jdk.vm.ci.hotspot.HotSpotResolvedJavaType;
82 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
83 import jdk.vm.ci.hotspot.HotSpotVMConfigStore;
84 import jdk.vm.ci.meta.JavaKind;
85 import jdk.vm.ci.meta.MetaAccessProvider;
86 import jdk.vm.ci.meta.ResolvedJavaMethod;
87 import jdk.vm.ci.meta.ResolvedJavaType;
88 import jdk.vm.ci.runtime.JVMCI;
89 import jdk.vm.ci.runtime.JVMCIBackend;
90 import jdk.vm.ci.services.Services;
91
92 //JaCoCo Exclude
93
94 /**
95 * Singleton class holding the instance of the {@link GraalRuntime}.
96 */
97 public final class HotSpotGraalRuntime implements HotSpotGraalRuntimeProvider {
98
99 private static final boolean IS_AOT = Boolean.parseBoolean(Services.getSavedProperties().get("com.oracle.graalvm.isaot"));
100
101 private static boolean checkArrayIndexScaleInvariants(MetaAccessProvider metaAccess) {
102 assert metaAccess.getArrayIndexScale(JavaKind.Byte) == 1;
103 assert metaAccess.getArrayIndexScale(JavaKind.Boolean) == 1;
104 assert metaAccess.getArrayIndexScale(JavaKind.Char) == 2;
105 assert metaAccess.getArrayIndexScale(JavaKind.Short) == 2;
106 assert metaAccess.getArrayIndexScale(JavaKind.Int) == 4;
107 assert metaAccess.getArrayIndexScale(JavaKind.Long) == 8;
108 assert metaAccess.getArrayIndexScale(JavaKind.Float) == 4;
109 assert metaAccess.getArrayIndexScale(JavaKind.Double) == 8;
110 return true;
111 }
112
113 private final String runtimeName;
114 private final String compilerConfigurationName;
115 private final HotSpotBackend hostBackend;
116 private final GlobalMetrics metricValues = new GlobalMetrics();
117 private final List<SnippetCounter.Group> snippetCounterGroups;
118 private final HotSpotGC garbageCollector;
119
120 private final EconomicMap<Class<? extends Architecture>, HotSpotBackend> backends = EconomicMap.create(Equivalence.IDENTITY);
121
122 private final GraalHotSpotVMConfig config;
123
124 /**
125 * The options can be {@linkplain #setOptionValues(String[], String[]) updated} by external
126 * interfaces such as JMX. This comes with the risk that inconsistencies can arise as an
127 * {@link OptionValues} object can be cached by various parts of Graal instead of always
128 * obtaining them from this object. However, concurrent updates are never lost.
129 */
130 private AtomicReference<OptionValues> optionsRef = new AtomicReference<>();
131
132 private final DiagnosticsOutputDirectory outputDirectory;
133 private final Map<ExceptionAction, Integer> compilationProblemsPerAction;
134
135 /**
136 * @param nameQualifier a qualifier to be added to this runtime's {@linkplain #getName() name}
137 * @param compilerConfigurationFactory factory for the compiler configuration
138 * {@link CompilerConfigurationFactory#selectFactory(String, OptionValues)}
139 */
140 @SuppressWarnings("try")
141 HotSpotGraalRuntime(String nameQualifier, HotSpotJVMCIRuntime jvmciRuntime, CompilerConfigurationFactory compilerConfigurationFactory, OptionValues initialOptions) {
142 this.runtimeName = getClass().getSimpleName() + ":" + nameQualifier;
143 HotSpotVMConfigStore store = jvmciRuntime.getConfigStore();
144 config = GeneratePIC.getValue(initialOptions) ? new AOTGraalHotSpotVMConfig(store) : new GraalHotSpotVMConfig(store);
145
146 // Only set HotSpotPrintInlining if it still has its default value (false).
147 if (GraalOptions.HotSpotPrintInlining.getValue(initialOptions) == false && config.printInlining) {
148 optionsRef.set(new OptionValues(initialOptions, HotSpotPrintInlining, true));
149 } else {
150 optionsRef.set(initialOptions);
151 }
152 OptionValues options = optionsRef.get();
153
154 garbageCollector = getSelectedGC();
155
156 outputDirectory = new DiagnosticsOutputDirectory(options);
157 compilationProblemsPerAction = new EnumMap<>(ExceptionAction.class);
158 snippetCounterGroups = GraalOptions.SnippetCounters.getValue(options) ? new ArrayList<>() : null;
159 CompilerConfiguration compilerConfiguration = compilerConfigurationFactory.createCompilerConfiguration();
160 compilerConfigurationName = compilerConfigurationFactory.getName();
161
162 if (IS_AOT) {
163 management = null;
164 } else {
165 management = GraalServices.loadSingle(HotSpotGraalManagementRegistration.class, false);
166 if (management != null) {
167 management.initialize(this);
168 }
169 }
170
171 BackendMap backendMap = compilerConfigurationFactory.createBackendMap();
172
173 JVMCIBackend hostJvmciBackend = jvmciRuntime.getHostJVMCIBackend();
174 Architecture hostArchitecture = hostJvmciBackend.getTarget().arch;
175 try (InitTimer t = timer("create backend:", hostArchitecture)) {
176 HotSpotBackendFactory factory = backendMap.getBackendFactory(hostArchitecture);
177 if (factory == null) {
178 throw new GraalError("No backend available for host architecture \"%s\"", hostArchitecture);
179 }
180 hostBackend = registerBackend(factory.createBackend(this, compilerConfiguration, jvmciRuntime, null));
181 }
182
183 for (JVMCIBackend jvmciBackend : jvmciRuntime.getJVMCIBackends().values()) {
184 if (jvmciBackend == hostJvmciBackend) {
185 continue;
186 }
187
188 Architecture gpuArchitecture = jvmciBackend.getTarget().arch;
189 HotSpotBackendFactory factory = backendMap.getBackendFactory(gpuArchitecture);
190 if (factory == null) {
191 throw new GraalError("No backend available for specified GPU architecture \"%s\"", gpuArchitecture);
192 }
193 try (InitTimer t = timer("create backend:", gpuArchitecture)) {
194 registerBackend(factory.createBackend(this, compilerConfiguration, null, hostBackend));
195 }
196 }
197
198 // Complete initialization of backends
199 try (InitTimer st = timer(hostBackend.getTarget().arch.getName(), ".completeInitialization")) {
200 hostBackend.completeInitialization(jvmciRuntime, options);
201 }
202 for (HotSpotBackend backend : backends.getValues()) {
203 if (backend != hostBackend) {
204 try (InitTimer st = timer(backend.getTarget().arch.getName(), ".completeInitialization")) {
205 backend.completeInitialization(jvmciRuntime, options);
206 }
207 }
208 }
209
210 BenchmarkCounters.initialize(jvmciRuntime, options);
211
212 assert checkArrayIndexScaleInvariants(hostJvmciBackend.getMetaAccess());
213
214 runtimeStartTime = System.nanoTime();
215 bootstrapJVMCI = config.getFlag("BootstrapJVMCI", Boolean.class);
216 }
217
218 /**
219 * Constants denoting the GC algorithms available in HotSpot.
220 */
221 public enum HotSpotGC {
222 // Supported GCs
223 Serial(true, "UseSerialGC"),
224 Parallel(true, "UseParallelGC", "UseParallelOldGC", "UseParNewGC"),
225 CMS(true, "UseConcMarkSweepGC"),
226 G1(true, "UseG1GC"),
227
228 // Unsupported GCs
229 Epsilon(false, "UseEpsilonGC"),
230 Z(false, "UseZGC");
231
232 HotSpotGC(boolean supported, String... flags) {
233 this.supported = supported;
234 this.flags = flags;
235 }
236
237 final boolean supported;
238 private final String[] flags;
239
240 public boolean isSelected(GraalHotSpotVMConfig config) {
241 for (String flag : flags) {
242 final boolean notPresent = false;
243 if (config.getFlag(flag, Boolean.class, notPresent)) {
244 return true;
245 }
246 }
247 return false;
248 }
249
250 }
251
252 private HotSpotGC getSelectedGC() throws GraalError {
253 for (HotSpotGC gc : HotSpotGC.values()) {
254 if (gc.isSelected(config)) {
255 if (!gc.supported) {
256 throw new GraalError(gc.name() + " garbage collector is not supported by Graal");
257 }
258 return gc;
259 }
260 }
261 // As of JDK 9, exactly one GC flag is guaranteed to be selected.
262 // On JDK 8, the default GC is Serial when no GC flag is true.
263 return HotSpotGC.Serial;
264 }
265
266 private HotSpotBackend registerBackend(HotSpotBackend backend) {
267 Class<? extends Architecture> arch = backend.getTarget().arch.getClass();
268 HotSpotBackend oldValue = backends.put(arch, backend);
269 assert oldValue == null : "cannot overwrite existing backend for architecture " + arch.getSimpleName();
270 return backend;
271 }
272
273 @Override
274 public HotSpotProviders getHostProviders() {
275 return getHostBackend().getProviders();
276 }
277
278 @Override
279 public GraalHotSpotVMConfig getVMConfig() {
280 return config;
281 }
282
283 @Override
284 public DebugContext openDebugContext(OptionValues compilationOptions, CompilationIdentifier compilationId, Object compilable, Iterable<DebugHandlersFactory> factories, PrintStream logStream) {
285 if (management != null && management.poll(false) != null) {
286 if (compilable instanceof HotSpotResolvedJavaMethod) {
287 HotSpotResolvedObjectType type = ((HotSpotResolvedJavaMethod) compilable).getDeclaringClass();
288 if (type instanceof HotSpotResolvedJavaType) {
289 Class<?> clazz = runtime().getMirror(type);
290 try {
291 ClassLoader cl = clazz.getClassLoader();
292 if (cl != null) {
293 loaders.add(cl);
294 }
295 } catch (SecurityException e) {
296 // This loader can obviously not be used for resolving class names
297 }
298 }
299 }
300 }
301 Description description = new Description(compilable, compilationId.toString(CompilationIdentifier.Verbosity.ID));
302 return DebugContext.create(compilationOptions, description, metricValues, logStream, factories);
303 }
304
305 @Override
306 public OptionValues getOptions() {
307 return optionsRef.get();
308 }
309
310 @Override
311 public Group createSnippetCounterGroup(String groupName) {
312 if (snippetCounterGroups != null) {
313 Group group = new Group(groupName);
314 snippetCounterGroups.add(group);
315 return group;
316 }
317 return null;
318 }
319
320 @Override
321 public String getName() {
322 return runtimeName;
323 }
324
325 @SuppressWarnings("unchecked")
326 @Override
327 public <T> T getCapability(Class<T> clazz) {
328 if (clazz == RuntimeProvider.class) {
329 return (T) this;
330 } else if (clazz == OptionValues.class) {
331 return (T) optionsRef.get();
332 } else if (clazz == StackIntrospection.class) {
333 return (T) this;
334 } else if (clazz == SnippetReflectionProvider.class) {
335 return (T) getHostProviders().getSnippetReflection();
336 } else if (clazz == GraalHotSpotVMConfig.class) {
337 return (T) getVMConfig();
338 } else if (clazz == StampProvider.class) {
339 return (T) getHostProviders().getStampProvider();
340 } else if (ForeignCallsProvider.class.isAssignableFrom(clazz)) {
341 return (T) getHostProviders().getForeignCalls();
342 }
343 return null;
344 }
345
346 public HotSpotGC getGarbageCollector() {
347 return garbageCollector;
348 }
349
350 @Override
351 public HotSpotBackend getHostBackend() {
352 return hostBackend;
353 }
354
355 @Override
356 public <T extends Architecture> Backend getBackend(Class<T> arch) {
357 assert arch != Architecture.class;
358 return backends.get(arch);
359 }
360
361 @Override
362 public String getCompilerConfigurationName() {
363 return compilerConfigurationName;
364 }
365
366 private long runtimeStartTime;
367
368 /**
369 * Called from compiler threads to check whether to bail out of a compilation.
370 */
371 private volatile boolean shutdown;
372
373 /**
374 * Take action related to entering a new execution phase.
375 *
376 * @param phase the execution phase being entered
377 */
378 void phaseTransition(String phase) {
379 if (Options.UseCompilationStatistics.getValue(optionsRef.get())) {
380 CompilationStatistics.clear(phase);
381 }
382 }
383
384 void shutdown() {
385 shutdown = true;
386 metricValues.print(optionsRef.get());
387
388 phaseTransition("final");
389
390 if (snippetCounterGroups != null) {
391 for (Group group : snippetCounterGroups) {
392 TTY.out().out().println(group);
393 }
394 }
395 BenchmarkCounters.shutdown(runtime(), optionsRef.get(), runtimeStartTime);
396
397 outputDirectory.close();
398
399 shutdownLibGraal();
400 }
401
402 /**
403 * Substituted by
404 * {@code com.oracle.svm.graal.hotspot.libgraal.Target_org_graalvm_compiler_hotspot_HotSpotGraalRuntime}
405 * to call {@code org.graalvm.nativeimage.VMRuntime.shutdown()}.
406 */
407 private static void shutdownLibGraal() {
408 }
409
410 void clearMetrics() {
411 metricValues.clear();
412 }
413
414 private final boolean bootstrapJVMCI;
415 private boolean bootstrapFinished;
416
417 public void notifyBootstrapFinished() {
418 bootstrapFinished = true;
419 }
420
421 @Override
422 public boolean isBootstrapping() {
423 return bootstrapJVMCI && !bootstrapFinished;
424 }
425
426 @Override
427 public boolean isShutdown() {
428 return shutdown;
429 }
430
431 @Override
432 public DiagnosticsOutputDirectory getOutputDirectory() {
433 return outputDirectory;
434 }
435
436 @Override
437 public Map<ExceptionAction, Integer> getCompilationProblemsPerAction() {
438 return compilationProblemsPerAction;
439 }
440
441 // ------- Management interface ---------
442
443 private final HotSpotGraalManagementRegistration management;
444
445 /**
446 * @returns the management object for this runtime or {@code null}
447 */
448 public HotSpotGraalManagementRegistration getManagement() {
449 return management;
450 }
451
452 /**
453 * Set of weak references to {@link ClassLoader}s available for resolving class names present in
454 * management {@linkplain #invokeManagementAction(String, Object[]) action} arguments.
455 */
456 private final WeakClassLoaderSet loaders = new WeakClassLoaderSet(ClassLoader.getSystemClassLoader());
457
458 /**
459 * Sets or updates this object's {@linkplain #getOptions() options} from {@code names} and
460 * {@code values}.
461 *
462 * @param values the values to set. The empty string represents {@code null} which resets an
463 * option to its default value. For string type options, a non-empty value must be
464 * enclosed in double quotes.
465 * @return an array of Strings where the element at index i is {@code names[i]} if setting the
466 * denoted option succeeded, {@code null} if the option is unknown otherwise an error
467 * message describing the failure to set the option
468 */
469 public String[] setOptionValues(String[] names, String[] values) {
470 EconomicMap<String, OptionDescriptor> optionDescriptors = getOptionDescriptors();
471 EconomicMap<OptionKey<?>, Object> newValues = EconomicMap.create(names.length);
472 EconomicSet<OptionKey<?>> resetValues = EconomicSet.create(names.length);
473 String[] result = new String[names.length];
474 for (int i = 0; i < names.length; i++) {
475 String name = names[i];
476 OptionDescriptor option = optionDescriptors.get(name);
477 if (option != null) {
478 String svalue = values[i];
479 Class<?> optionValueType = option.getOptionValueType();
480 OptionKey<?> optionKey = option.getOptionKey();
481 if (svalue == null || svalue.isEmpty() && !(optionKey instanceof EnumOptionKey)) {
482 resetValues.add(optionKey);
483 result[i] = name;
484 } else {
485 String valueToParse;
486 if (optionValueType == String.class) {
487 if (svalue.length() < 2 || svalue.charAt(0) != '"' || svalue.charAt(svalue.length() - 1) != '"') {
488 result[i] = "Invalid value for String option '" + name + "': must be the empty string or be enclosed in double quotes: " + svalue;
489 continue;
490 } else {
491 valueToParse = svalue.substring(1, svalue.length() - 1);
492 }
493 } else {
494 valueToParse = svalue;
495 }
496 try {
497 OptionsParser.parseOption(name, valueToParse, newValues, OptionsParser.getOptionsLoader());
498 result[i] = name;
499 } catch (IllegalArgumentException e) {
500 result[i] = e.getMessage();
501 continue;
502 }
503 }
504 } else {
505 result[i] = null;
506 }
507 }
508
509 OptionValues currentOptions;
510 OptionValues newOptions;
511 do {
512 currentOptions = optionsRef.get();
513 UnmodifiableMapCursor<OptionKey<?>, Object> cursor = currentOptions.getMap().getEntries();
514 while (cursor.advance()) {
515 OptionKey<?> key = cursor.getKey();
516 if (!resetValues.contains(key) && !newValues.containsKey(key)) {
517 newValues.put(key, OptionValues.decodeNull(cursor.getValue()));
518 }
519 }
520 newOptions = new OptionValues(newValues);
521 } while (!optionsRef.compareAndSet(currentOptions, newOptions));
522
523 return result;
524 }
525
526 /**
527 * Gets the values for the options corresponding to {@code names} encoded as strings. The empty
528 * string represents {@code null}. For string type options, non-{@code null} values will be
529 * enclosed in double quotes.
530 *
531 * @param names a list of option names
532 * @return the values for each named option. If an element in {@code names} does not denote an
533 * existing option, the corresponding element in the returned array will be {@code null}
534 */
535 public String[] getOptionValues(String... names) {
536 String[] values = new String[names.length];
537 EconomicMap<String, OptionDescriptor> optionDescriptors = getOptionDescriptors();
538 for (int i = 0; i < names.length; i++) {
539 OptionDescriptor option = optionDescriptors.get(names[i]);
540 if (option != null) {
541 OptionKey<?> optionKey = option.getOptionKey();
542 Object value = optionKey.getValue(getOptions());
543 String svalue;
544 if (option.getOptionValueType() == String.class && value != null) {
545 svalue = "\"" + value + "\"";
546 } else if (value == null) {
547 svalue = "";
548 } else {
549 svalue = String.valueOf(value);
550 }
551 values[i] = svalue;
552 } else {
553 // null denotes the option does not exist
554 values[i] = null;
555 }
556 }
557 return values;
558 }
559
560 private static EconomicMap<String, OptionDescriptor> getOptionDescriptors() {
561 EconomicMap<String, OptionDescriptor> result = EconomicMap.create();
562 for (OptionDescriptors set : OptionsParser.getOptionsLoader()) {
563 for (OptionDescriptor option : set) {
564 result.put(option.getName(), option);
565 }
566 }
567 return result;
568 }
569
570 private void dumpMethod(String className, String methodName, String filter, String host, int port) throws Exception {
571 EconomicSet<ClassNotFoundException> failures = EconomicSet.create();
572 EconomicSet<Class<?>> found = loaders.resolve(className, failures);
573 if (found.isEmpty()) {
574 ClassNotFoundException cause = failures.isEmpty() ? new ClassNotFoundException(className) : failures.iterator().next();
575 throw new Exception("Cannot find class " + className + " to schedule recompilation", cause);
576 }
577 for (Class<?> clazz : found) {
578 ResolvedJavaType type = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess().lookupJavaType(clazz);
579 for (ResolvedJavaMethod method : type.getDeclaredMethods()) {
580 if (methodName.equals(method.getName()) && method instanceof HotSpotResolvedJavaMethod) {
581 HotSpotResolvedJavaMethod hotSpotMethod = (HotSpotResolvedJavaMethod) method;
582 dumpMethod(hotSpotMethod, filter, host, port);
583 }
584 }
585 }
586 }
587
588 private void dumpMethod(HotSpotResolvedJavaMethod hotSpotMethod, String filter, String host, int port) throws Exception {
589 EconomicMap<OptionKey<?>, Object> extra = EconomicMap.create();
590 extra.put(DebugOptions.Dump, filter);
591 extra.put(DebugOptions.PrintGraphHost, host);
592 extra.put(DebugOptions.PrintGraphPort, port);
593 OptionValues compileOptions = new OptionValues(getOptions(), extra);
594 HotSpotGraalCompiler compiler = (HotSpotGraalCompiler) runtime().getCompiler();
595 compiler.compileMethod(new HotSpotCompilationRequest(hotSpotMethod, -1, 0L), false, compileOptions);
596 }
597
598 public Object invokeManagementAction(String actionName, Object[] params) throws Exception {
599 if ("dumpMethod".equals(actionName)) {
600 if (params.length != 0 && params[0] instanceof HotSpotResolvedJavaMethod) {
601 HotSpotResolvedJavaMethod method = param(params, 0, "method", HotSpotResolvedJavaMethod.class, null);
602 String filter = param(params, 1, "filter", String.class, ":3");
603 String host = param(params, 2, "host", String.class, "localhost");
604 Number port = param(params, 3, "port", Number.class, 4445);
605 dumpMethod(method, filter, host, port.intValue());
606 } else {
607 String className = param(params, 0, "className", String.class, null);
608 String methodName = param(params, 1, "methodName", String.class, null);
609 String filter = param(params, 2, "filter", String.class, ":3");
610 String host = param(params, 3, "host", String.class, "localhost");
611 Number port = param(params, 4, "port", Number.class, 4445);
612 dumpMethod(className, methodName, filter, host, port.intValue());
613 }
614 }
615 return null;
616 }
617
618 private static <T> T param(Object[] arr, int index, String name, Class<T> type, T defaultValue) {
619 Object value = arr.length > index ? arr[index] : null;
620 if (value == null || (value instanceof String && ((String) value).isEmpty())) {
621 if (defaultValue == null) {
622 throw new IllegalArgumentException(name + " must be specified");
623 }
624 value = defaultValue;
625 }
626 if (type.isInstance(value)) {
627 return type.cast(value);
628 }
629 throw new IllegalArgumentException("Expecting " + type.getName() + " for " + name + " but was " + value);
630 }
631 }