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comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotJVMCIRuntime.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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children b1530a6cce8c
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21550:f48a6cea31eb 21551:5324104ac4f3
1 /*
2 * Copyright (c) 2015, 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 package com.oracle.jvmci.hotspot;
24
25 import static com.oracle.jvmci.common.UnsafeAccess.*;
26 import static com.oracle.jvmci.hotspot.InitTimer.*;
27
28 import java.lang.reflect.*;
29 import java.util.*;
30
31 import com.oracle.graal.api.code.*;
32 import com.oracle.graal.api.meta.*;
33 import com.oracle.graal.debug.*;
34 import com.oracle.graal.options.*;
35 import com.oracle.jvmci.common.*;
36 import com.oracle.jvmci.hotspot.logging.*;
37 import com.oracle.jvmci.runtime.*;
38
39 //JaCoCo Exclude
40
41 public final class HotSpotJVMCIRuntime implements HotSpotJVMCIRuntimeProvider, HotSpotProxified {
42
43 private static final HotSpotJVMCIRuntime instance;
44
45 static {
46 try (InitTimer t0 = timer("HotSpotJVMCIRuntime.<clinit>")) {
47 try (InitTimer t = timer("initialize HotSpotOptions")) {
48 HotSpotOptions.initialize();
49 }
50
51 try (InitTimer t = timer("HotSpotJVMCIRuntime.<init>")) {
52 instance = new HotSpotJVMCIRuntime();
53 }
54
55 try (InitTimer t = timer("HotSpotJVMCIRuntime.completeInitialization")) {
56 // Why deferred initialization? See comment in completeInitialization().
57 instance.completeInitialization();
58 }
59 }
60 }
61
62 /**
63 * Gets the singleton {@link HotSpotJVMCIRuntime} object.
64 */
65 public static HotSpotJVMCIRuntime runtime() {
66 assert instance != null;
67 return instance;
68 }
69
70 /**
71 * Do deferred initialization.
72 */
73 public void completeInitialization() {
74 TTY.initialize(Options.LogFile.getStream(compilerToVm));
75
76 // Proxies for the VM/Compiler interfaces cannot be initialized
77 // in the constructor as proxy creation causes static
78 // initializers to be executed for all the types involved in the
79 // proxied methods. Some of these static initializers (e.g. in
80 // HotSpotMethodData) rely on the static 'instance' field being set
81 // to retrieve configuration details.
82 CompilerToVM toVM = this.compilerToVm;
83
84 if (CountingProxy.ENABLED) {
85 toVM = CountingProxy.getProxy(CompilerToVM.class, toVM);
86 }
87 if (Logger.ENABLED) {
88 toVM = LoggingProxy.getProxy(CompilerToVM.class, toVM);
89 }
90
91 this.compilerToVm = toVM;
92 }
93
94 public static class Options {
95
96 // @formatter:off
97 @Option(help = "The JVMCI runtime configuration to use", type = OptionType.Expert)
98 public static final OptionValue<String> JVMCIRuntime = new OptionValue<>("");
99
100 @Option(help = "File to which logging is sent. A %p in the name will be replaced with a string identifying the process, usually the process id.", type = OptionType.Expert)
101 public static final PrintStreamOption LogFile = new PrintStreamOption();
102 // @formatter:on
103 }
104
105 public static HotSpotJVMCIBackendFactory findFactory(String architecture) {
106 HotSpotJVMCIBackendFactory basic = null;
107 HotSpotJVMCIBackendFactory selected = null;
108 HotSpotJVMCIBackendFactory nonBasic = null;
109 int nonBasicCount = 0;
110
111 for (HotSpotJVMCIBackendFactory factory : Services.load(HotSpotJVMCIBackendFactory.class)) {
112 if (factory.getArchitecture().equalsIgnoreCase(architecture)) {
113 if (factory.getJVMCIRuntimeName().equals(Options.JVMCIRuntime.getValue())) {
114 assert selected == null || checkFactoryOverriding(selected, factory);
115 selected = factory;
116 }
117 if (factory.getJVMCIRuntimeName().equals("basic")) {
118 assert basic == null || checkFactoryOverriding(basic, factory);
119 basic = factory;
120 } else {
121 nonBasic = factory;
122 nonBasicCount++;
123 }
124 }
125 }
126
127 if (selected != null) {
128 return selected;
129 } else {
130 if (!Options.JVMCIRuntime.getValue().equals("")) {
131 // Fail fast if a non-default value for JVMCIRuntime was specified
132 // and the corresponding factory is not available
133 throw new JVMCIError("Specified runtime \"%s\" not available for the %s architecture", Options.JVMCIRuntime.getValue(), architecture);
134 } else if (nonBasicCount == 1) {
135 // If there is exactly one non-basic runtime, select this one.
136 return nonBasic;
137 } else {
138 return basic;
139 }
140 }
141 }
142
143 /**
144 * Checks that a factory overriding is valid. A factory B can only override/replace a factory A
145 * if the B.getClass() is a subclass of A.getClass(). This models the assumption that B is
146 * extends the behavior of A and has therefore understood the behavior expected of A.
147 *
148 * @param baseFactory
149 * @param overridingFactory
150 */
151 private static boolean checkFactoryOverriding(HotSpotJVMCIBackendFactory baseFactory, HotSpotJVMCIBackendFactory overridingFactory) {
152 return baseFactory.getClass().isAssignableFrom(overridingFactory.getClass());
153 }
154
155 /**
156 * Gets the kind of a word value on the {@linkplain #getHostJVMCIBackend() host} backend.
157 */
158 public static Kind getHostWordKind() {
159 return instance.getHostJVMCIBackend().getCodeCache().getTarget().wordKind;
160 }
161
162 /**
163 * Reads a klass pointer from a constant object.
164 */
165 public static long unsafeReadKlassPointer(Object object) {
166 return instance.getCompilerToVM().readUnsafeKlassPointer(object);
167 }
168
169 /**
170 * Reads a word value from a given object.
171 */
172 public static long unsafeReadWord(Object object, long offset) {
173 if (getHostWordKind() == Kind.Long) {
174 return unsafe.getLong(object, offset);
175 }
176 return unsafe.getInt(object, offset) & 0xFFFFFFFFL;
177 }
178
179 protected/* final */CompilerToVM compilerToVm;
180
181 protected final HotSpotVMConfig config;
182 private final JVMCIBackend hostBackend;
183
184 /**
185 * Graal mirrors are stored as a {@link ClassValue} associated with the {@link Class} of the
186 * type. This data structure stores both {@link HotSpotResolvedObjectType} and
187 * {@link HotSpotResolvedPrimitiveType} types.
188 */
189 private final ClassValue<ResolvedJavaType> graalMirrors = new ClassValue<ResolvedJavaType>() {
190 @Override
191 protected ResolvedJavaType computeValue(Class<?> javaClass) {
192 if (javaClass.isPrimitive()) {
193 Kind kind = Kind.fromJavaClass(javaClass);
194 return new HotSpotResolvedPrimitiveType(kind);
195 } else {
196 return new HotSpotResolvedObjectTypeImpl(javaClass);
197 }
198 }
199 };
200
201 private final Map<Class<? extends Architecture>, JVMCIBackend> backends = new HashMap<>();
202
203 private HotSpotJVMCIRuntime() {
204 CompilerToVM toVM = new CompilerToVMImpl();
205 compilerToVm = toVM;
206 try (InitTimer t = timer("HotSpotVMConfig<init>")) {
207 config = new HotSpotVMConfig(compilerToVm);
208 }
209
210 if (Boolean.valueOf(System.getProperty("graal.printconfig"))) {
211 printConfig(config);
212 }
213
214 String hostArchitecture = config.getHostArchitectureName();
215
216 HotSpotJVMCIBackendFactory factory;
217 try (InitTimer t = timer("find factory:", hostArchitecture)) {
218 factory = findFactory(hostArchitecture);
219 }
220 try (InitTimer t = timer("create JVMCI backend:", hostArchitecture)) {
221 hostBackend = registerBackend(factory.createJVMCIBackend(this, null));
222 }
223 }
224
225 private JVMCIBackend registerBackend(JVMCIBackend backend) {
226 Class<? extends Architecture> arch = backend.getCodeCache().getTarget().arch.getClass();
227 JVMCIBackend oldValue = backends.put(arch, backend);
228 assert oldValue == null : "cannot overwrite existing backend for architecture " + arch.getSimpleName();
229 return backend;
230 }
231
232 public ResolvedJavaType fromClass(Class<?> javaClass) {
233 return graalMirrors.get(javaClass);
234 }
235
236 private static void printConfig(HotSpotVMConfig config) {
237 Field[] fields = config.getClass().getDeclaredFields();
238 Map<String, Field> sortedFields = new TreeMap<>();
239 for (Field f : fields) {
240 f.setAccessible(true);
241 sortedFields.put(f.getName(), f);
242 }
243 for (Field f : sortedFields.values()) {
244 try {
245 Logger.info(String.format("%9s %-40s = %s", f.getType().getSimpleName(), f.getName(), Logger.pretty(f.get(config))));
246 } catch (Exception e) {
247 }
248 }
249 }
250
251 public HotSpotVMConfig getConfig() {
252 return config;
253 }
254
255 public CompilerToVM getCompilerToVM() {
256 return compilerToVm;
257 }
258
259 public JavaType lookupType(String name, HotSpotResolvedObjectType accessingType, boolean resolve) {
260 Objects.requireNonNull(accessingType, "cannot resolve type without an accessing class");
261 // If the name represents a primitive type we can short-circuit the lookup.
262 if (name.length() == 1) {
263 Kind kind = Kind.fromPrimitiveOrVoidTypeChar(name.charAt(0));
264 return fromClass(kind.toJavaClass());
265 }
266
267 // Resolve non-primitive types in the VM.
268 HotSpotResolvedObjectTypeImpl hsAccessingType = (HotSpotResolvedObjectTypeImpl) accessingType;
269 final long metaspaceKlass = compilerToVm.lookupType(name, hsAccessingType.mirror(), resolve);
270
271 if (metaspaceKlass == 0L) {
272 assert resolve == false;
273 return HotSpotUnresolvedJavaType.create(this, name);
274 }
275 return HotSpotResolvedObjectTypeImpl.fromMetaspaceKlass(metaspaceKlass);
276 }
277
278 public JVMCIBackend getHostJVMCIBackend() {
279 return hostBackend;
280 }
281
282 public <T extends Architecture> JVMCIBackend getJVMCIBackend(Class<T> arch) {
283 assert arch != Architecture.class;
284 return backends.get(arch);
285 }
286
287 public Map<Class<? extends Architecture>, JVMCIBackend> getBackends() {
288 return Collections.unmodifiableMap(backends);
289 }
290
291 /**
292 * Called from the VM.
293 */
294 @SuppressWarnings({"unused", "static-method"})
295 private void compileTheWorld() throws Throwable {
296 for (HotSpotVMEventListener l : Services.load(HotSpotVMEventListener.class)) {
297 l.notifyCompileTheWorld();
298 }
299 }
300
301 /**
302 * Shuts down the runtime.
303 *
304 * Called from the VM.
305 */
306 @SuppressWarnings({"unused", "static-method"})
307 private void shutdown() throws Exception {
308 for (HotSpotVMEventListener l : Services.load(HotSpotVMEventListener.class)) {
309 l.notifyShutdown();
310 }
311 }
312 }