1 /*
2 * Copyright (c) 2011, 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 #ifndef SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP
25 #define SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP
26
27 #include "classfile/systemDictionary.hpp"
28 #include "oops/instanceMirrorKlass.hpp"
29 #include "oops/oop.inline.hpp"
30
31 class JVMCIJavaClasses : AllStatic {
32 public:
33 static void compute_offsets(TRAPS);
34 };
35
36 /* This macro defines the structure of the CompilationResult - classes.
37 * It will generate classes with accessors similar to javaClasses.hpp, but with specializations for oops, Handles and jni handles.
38 *
39 * The public interface of these classes will look like this:
40
41 * class StackSlot : AllStatic {
42 * public:
43 * static Klass* klass();
44 * static jint index(oop obj);
45 * static jint index(Handle obj);
46 * static jint index(jobject obj);
47 * static void set_index(oop obj, jint x);
48 * static void set_index(Handle obj, jint x);
49 * static void set_index(jobject obj, jint x);
50 * };
51 *
52 */
53
54 #define COMPILER_CLASSES_DO(start_class, end_class, char_field, int_field, boolean_field, long_field, float_field, oop_field, typeArrayOop_field, objArrayOop_field, static_oop_field, static_objArrayOop_field, static_int_field, static_boolean_field) \
55 start_class(Architecture) \
56 oop_field(Architecture, wordKind, "Ljdk/vm/ci/meta/PlatformKind;") \
57 end_class \
58 start_class(TargetDescription) \
59 oop_field(TargetDescription, arch, "Ljdk/vm/ci/code/Architecture;") \
60 end_class \
61 start_class(HotSpotResolvedObjectTypeImpl) \
62 oop_field(HotSpotResolvedObjectTypeImpl, javaClass, "Ljava/lang/Class;") \
63 end_class \
64 start_class(HotSpotResolvedJavaMethodImpl) \
65 long_field(HotSpotResolvedJavaMethodImpl, metaspaceMethod) \
66 end_class \
67 start_class(HotSpotSymbol) \
68 long_field(HotSpotSymbol, pointer) \
69 end_class \
70 start_class(InstalledCode) \
71 long_field(InstalledCode, address) \
72 long_field(InstalledCode, entryPoint) \
73 long_field(InstalledCode, version) \
74 oop_field(InstalledCode, name, "Ljava/lang/String;") \
75 end_class \
76 start_class(HotSpotInstalledCode) \
77 int_field(HotSpotInstalledCode, size) \
78 long_field(HotSpotInstalledCode, codeStart) \
79 int_field(HotSpotInstalledCode, codeSize) \
80 end_class \
81 start_class(HotSpotNmethod) \
82 boolean_field(HotSpotNmethod, isDefault) \
83 end_class \
84 start_class(HotSpotCompiledCode) \
85 oop_field(HotSpotCompiledCode, name, "Ljava/lang/String;") \
86 typeArrayOop_field(HotSpotCompiledCode, targetCode, "[B") \
87 int_field(HotSpotCompiledCode, targetCodeSize) \
88 objArrayOop_field(HotSpotCompiledCode, sites, "[Ljdk/vm/ci/code/site/Site;") \
89 objArrayOop_field(HotSpotCompiledCode, assumptions, "[Ljdk/vm/ci/meta/Assumptions$Assumption;") \
90 objArrayOop_field(HotSpotCompiledCode, methods, "[Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
91 objArrayOop_field(HotSpotCompiledCode, comments, "[Ljdk/vm/ci/hotspot/HotSpotCompiledCode$Comment;") \
92 typeArrayOop_field(HotSpotCompiledCode, dataSection, "[B") \
93 int_field(HotSpotCompiledCode, dataSectionAlignment) \
94 objArrayOop_field(HotSpotCompiledCode, dataSectionPatches, "[Ljdk/vm/ci/code/site/DataPatch;") \
95 boolean_field(HotSpotCompiledCode, isImmutablePIC) \
96 int_field(HotSpotCompiledCode, totalFrameSize) \
97 oop_field(HotSpotCompiledCode, deoptRescueSlot, "Ljdk/vm/ci/code/StackSlot;") \
98 end_class \
99 start_class(HotSpotCompiledCode_Comment) \
100 oop_field(HotSpotCompiledCode_Comment, text, "Ljava/lang/String;") \
101 int_field(HotSpotCompiledCode_Comment, pcOffset) \
102 end_class \
103 start_class(HotSpotCompiledNmethod) \
104 oop_field(HotSpotCompiledNmethod, method, "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethod;") \
105 oop_field(HotSpotCompiledNmethod, installationFailureMessage, "Ljava/lang/String;") \
106 int_field(HotSpotCompiledNmethod, entryBCI) \
107 int_field(HotSpotCompiledNmethod, id) \
108 long_field(HotSpotCompiledNmethod, jvmciEnv) \
109 boolean_field(HotSpotCompiledNmethod, hasUnsafeAccess) \
110 end_class \
111 start_class(HotSpotJVMCIMetaAccessContext) \
112 static_objArrayOop_field(HotSpotJVMCIMetaAccessContext, allContexts, "[Ljava/lang/ref/WeakReference;") \
113 objArrayOop_field(HotSpotJVMCIMetaAccessContext, metadataRoots, "[Ljava/lang/Object;") \
114 end_class \
115 start_class(HotSpotForeignCallTarget) \
116 long_field(HotSpotForeignCallTarget, address) \
117 end_class \
118 start_class(Assumptions_NoFinalizableSubclass) \
119 oop_field(Assumptions_NoFinalizableSubclass, receiverType, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
120 end_class \
121 start_class(Assumptions_ConcreteSubtype) \
122 oop_field(Assumptions_ConcreteSubtype, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
123 oop_field(Assumptions_ConcreteSubtype, subtype, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
124 end_class \
125 start_class(Assumptions_LeafType) \
126 oop_field(Assumptions_LeafType, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
127 end_class \
128 start_class(Assumptions_ConcreteMethod) \
129 oop_field(Assumptions_ConcreteMethod, method, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
130 oop_field(Assumptions_ConcreteMethod, context, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
131 oop_field(Assumptions_ConcreteMethod, impl, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
132 end_class \
133 start_class(Assumptions_CallSiteTargetValue) \
134 oop_field(Assumptions_CallSiteTargetValue, callSite, "Ljava/lang/invoke/CallSite;") \
135 oop_field(Assumptions_CallSiteTargetValue, methodHandle, "Ljava/lang/invoke/MethodHandle;") \
136 end_class \
137 start_class(site_Site) \
138 int_field(site_Site, pcOffset) \
139 end_class \
140 start_class(site_Call) \
141 oop_field(site_Call, target, "Ljdk/vm/ci/meta/InvokeTarget;") \
142 oop_field(site_Call, debugInfo, "Ljdk/vm/ci/code/DebugInfo;") \
143 end_class \
144 start_class(site_DataPatch) \
145 oop_field(site_DataPatch, reference, "Ljdk/vm/ci/code/site/Reference;") \
146 end_class \
147 start_class(site_ConstantReference) \
148 oop_field(site_ConstantReference, constant, "Ljdk/vm/ci/meta/VMConstant;") \
149 end_class \
150 start_class(site_DataSectionReference) \
151 int_field(site_DataSectionReference, offset) \
152 end_class \
153 start_class(site_InfopointReason) \
154 static_oop_field(site_InfopointReason, SAFEPOINT, "Ljdk/vm/ci/code/site/InfopointReason;") \
155 static_oop_field(site_InfopointReason, CALL, "Ljdk/vm/ci/code/site/InfopointReason;") \
156 static_oop_field(site_InfopointReason, IMPLICIT_EXCEPTION, "Ljdk/vm/ci/code/site/InfopointReason;") \
157 end_class \
158 start_class(site_Infopoint) \
159 oop_field(site_Infopoint, debugInfo, "Ljdk/vm/ci/code/DebugInfo;") \
160 oop_field(site_Infopoint, reason, "Ljdk/vm/ci/code/site/InfopointReason;") \
161 end_class \
162 start_class(site_ExceptionHandler) \
163 int_field(site_ExceptionHandler, handlerPos) \
164 end_class \
165 start_class(site_Mark) \
166 oop_field(site_Mark, id, "Ljava/lang/Object;") \
167 end_class \
168 start_class(CompilationRequestResult) \
169 oop_field(CompilationRequestResult, failureMessage, "Ljava/lang/String;") \
170 boolean_field(CompilationRequestResult, retry) \
171 int_field(CompilationRequestResult, inlinedBytecodes) \
172 end_class \
173 start_class(DebugInfo) \
174 oop_field(DebugInfo, bytecodePosition, "Ljdk/vm/ci/code/BytecodePosition;") \
175 oop_field(DebugInfo, referenceMap, "Ljdk/vm/ci/code/ReferenceMap;") \
176 oop_field(DebugInfo, calleeSaveInfo, "Ljdk/vm/ci/code/RegisterSaveLayout;") \
177 objArrayOop_field(DebugInfo, virtualObjectMapping, "[Ljdk/vm/ci/code/VirtualObject;") \
178 end_class \
179 start_class(HotSpotReferenceMap) \
180 objArrayOop_field(HotSpotReferenceMap, objects, "[Ljdk/vm/ci/code/Location;") \
181 objArrayOop_field(HotSpotReferenceMap, derivedBase, "[Ljdk/vm/ci/code/Location;") \
182 typeArrayOop_field(HotSpotReferenceMap, sizeInBytes, "[I") \
183 int_field(HotSpotReferenceMap, maxRegisterSize) \
184 end_class \
185 start_class(RegisterSaveLayout) \
186 objArrayOop_field(RegisterSaveLayout, registers, "[Ljdk/vm/ci/code/Register;") \
187 typeArrayOop_field(RegisterSaveLayout, slots, "[I") \
188 end_class \
189 start_class(BytecodeFrame) \
190 objArrayOop_field(BytecodeFrame, values, "[Ljdk/vm/ci/meta/JavaValue;") \
191 objArrayOop_field(BytecodeFrame, slotKinds, "[Ljdk/vm/ci/meta/JavaKind;") \
192 int_field(BytecodeFrame, numLocals) \
193 int_field(BytecodeFrame, numStack) \
194 int_field(BytecodeFrame, numLocks) \
195 boolean_field(BytecodeFrame, rethrowException) \
196 boolean_field(BytecodeFrame, duringCall) \
197 static_int_field(BytecodeFrame, BEFORE_BCI) \
198 end_class \
199 start_class(BytecodePosition) \
200 oop_field(BytecodePosition, caller, "Ljdk/vm/ci/code/BytecodePosition;") \
201 oop_field(BytecodePosition, method, "Ljdk/vm/ci/meta/ResolvedJavaMethod;") \
202 int_field(BytecodePosition, bci) \
203 end_class \
204 start_class(JavaConstant) \
205 end_class \
206 start_class(PrimitiveConstant) \
207 oop_field(PrimitiveConstant, kind, "Ljdk/vm/ci/meta/JavaKind;") \
208 long_field(PrimitiveConstant, primitive) \
209 end_class \
210 start_class(RawConstant) \
211 long_field(RawConstant, primitive) \
212 end_class \
213 start_class(NullConstant) \
214 end_class \
215 start_class(HotSpotCompressedNullConstant) \
216 end_class \
217 start_class(HotSpotObjectConstantImpl) \
218 oop_field(HotSpotObjectConstantImpl, object, "Ljava/lang/Object;") \
219 boolean_field(HotSpotObjectConstantImpl, compressed) \
220 end_class \
221 start_class(HotSpotMetaspaceConstantImpl) \
222 oop_field(HotSpotMetaspaceConstantImpl, metaspaceObject, "Ljdk/vm/ci/hotspot/MetaspaceWrapperObject;") \
223 boolean_field(HotSpotMetaspaceConstantImpl, compressed) \
224 end_class \
225 start_class(HotSpotSentinelConstant) \
226 end_class \
227 start_class(JavaKind) \
228 char_field(JavaKind, typeChar) \
229 static_oop_field(JavaKind, Boolean, "Ljdk/vm/ci/meta/JavaKind;"); \
230 static_oop_field(JavaKind, Byte, "Ljdk/vm/ci/meta/JavaKind;"); \
231 static_oop_field(JavaKind, Char, "Ljdk/vm/ci/meta/JavaKind;"); \
232 static_oop_field(JavaKind, Short, "Ljdk/vm/ci/meta/JavaKind;"); \
233 static_oop_field(JavaKind, Int, "Ljdk/vm/ci/meta/JavaKind;"); \
234 static_oop_field(JavaKind, Long, "Ljdk/vm/ci/meta/JavaKind;"); \
235 end_class \
236 start_class(LIRKind) \
237 oop_field(LIRKind, platformKind, "Ljdk/vm/ci/meta/PlatformKind;") \
238 int_field(LIRKind, referenceMask) \
239 end_class \
240 start_class(Value) \
241 oop_field(Value, lirKind, "Ljdk/vm/ci/meta/LIRKind;") \
242 static_oop_field(Value, ILLEGAL, "Ljdk/vm/ci/meta/AllocatableValue;"); \
243 end_class \
244 start_class(RegisterValue) \
245 oop_field(RegisterValue, reg, "Ljdk/vm/ci/code/Register;") \
246 end_class \
247 start_class(code_Location) \
248 oop_field(code_Location, reg, "Ljdk/vm/ci/code/Register;") \
249 int_field(code_Location, offset) \
250 end_class \
251 start_class(code_Register) \
252 int_field(code_Register, number) \
253 int_field(code_Register, encoding) \
254 end_class \
255 start_class(StackSlot) \
256 int_field(StackSlot, offset) \
257 boolean_field(StackSlot, addFrameSize) \
258 end_class \
259 start_class(VirtualObject) \
260 int_field(VirtualObject, id) \
261 oop_field(VirtualObject, type, "Ljdk/vm/ci/meta/ResolvedJavaType;") \
262 objArrayOop_field(VirtualObject, values, "[Ljdk/vm/ci/meta/JavaValue;") \
263 objArrayOop_field(VirtualObject, slotKinds, "[Ljdk/vm/ci/meta/JavaKind;") \
264 end_class \
265 start_class(StackLockValue) \
266 oop_field(StackLockValue, owner, "Ljdk/vm/ci/meta/JavaValue;") \
267 oop_field(StackLockValue, slot, "Ljdk/vm/ci/meta/AllocatableValue;") \
268 boolean_field(StackLockValue, eliminated) \
269 end_class \
270 start_class(HotSpotSpeculationLog) \
271 oop_field(HotSpotSpeculationLog, lastFailed, "Ljava/lang/Object;") \
272 end_class \
273 start_class(HotSpotStackFrameReference) \
274 oop_field(HotSpotStackFrameReference, compilerToVM, "Ljdk/vm/ci/hotspot/CompilerToVM;") \
275 long_field(HotSpotStackFrameReference, stackPointer) \
276 int_field(HotSpotStackFrameReference, frameNumber) \
277 int_field(HotSpotStackFrameReference, bci) \
278 oop_field(HotSpotStackFrameReference, method, "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethod;") \
279 objArrayOop_field(HotSpotStackFrameReference, locals, "[Ljava/lang/Object;") \
280 typeArrayOop_field(HotSpotStackFrameReference, localIsVirtual, "[Z") \
281 end_class \
282 start_class(HotSpotMetaData) \
283 typeArrayOop_field(HotSpotMetaData, pcDescBytes, "[B") \
284 typeArrayOop_field(HotSpotMetaData, scopesDescBytes, "[B") \
285 typeArrayOop_field(HotSpotMetaData, relocBytes, "[B") \
286 typeArrayOop_field(HotSpotMetaData, exceptionBytes, "[B") \
287 typeArrayOop_field(HotSpotMetaData, oopMaps, "[B") \
288 objArrayOop_field(HotSpotMetaData, metadata, "[Ljava/lang/String;") \
289 end_class \
290 start_class(HotSpotOopMap) \
291 int_field(HotSpotOopMap, offset) \
292 int_field(HotSpotOopMap, count) \
293 typeArrayOop_field(HotSpotOopMap, data, "[B") \
294 end_class \
295 start_class(HotSpotConstantPool) \
296 long_field(HotSpotConstantPool, metaspaceConstantPool) \
297 end_class \
298 start_class(HotSpotJVMCIRuntime) \
299 objArrayOop_field(HotSpotJVMCIRuntime, trivialPrefixes, "[Ljava/lang/String;") \
300 end_class \
301 /* end*/
302
303 #define START_CLASS(name) \
304 class name : AllStatic { \
305 private: \
306 friend class JVMCICompiler; \
307 static void check(oop obj, const char* field_name, int offset) { \
308 assert(obj != NULL, "NULL field access of %s.%s", #name, field_name); \
309 assert(obj->is_a(SystemDictionary::name##_klass()), "wrong class, " #name " expected, found %s", obj->klass()->external_name()); \
310 assert(offset != 0, "must be valid offset"); \
311 } \
312 static void compute_offsets(TRAPS); \
313 public: \
314 static InstanceKlass* klass() { return SystemDictionary::name##_klass(); }
315
316 #define END_CLASS };
317
318 #define FIELD(name, type, accessor, cast) \
319 static int _##name##_offset; \
320 static type name(oop obj) { check(obj, #name, _##name##_offset); return cast obj->accessor(_##name##_offset); } \
321 static type name(Handle obj) { check(obj(), #name, _##name##_offset); return cast obj->accessor(_##name##_offset); } \
322 static type name(jobject obj) { check(JNIHandles::resolve(obj), #name, _##name##_offset); return cast JNIHandles::resolve(obj)->accessor(_##name##_offset); } \
323 static void set_##name(oop obj, type x) { check(obj, #name, _##name##_offset); obj->accessor##_put(_##name##_offset, x); } \
324 static void set_##name(Handle obj, type x) { check(obj(), #name, _##name##_offset); obj->accessor##_put(_##name##_offset, x); } \
325 static void set_##name(jobject obj, type x) { check(JNIHandles::resolve(obj), #name, _##name##_offset); JNIHandles::resolve(obj)->accessor##_put(_##name##_offset, x); }
326
327 #define EMPTY_CAST
328 #define CHAR_FIELD(klass, name) FIELD(name, jchar, char_field, EMPTY_CAST)
329 #define INT_FIELD(klass, name) FIELD(name, jint, int_field, EMPTY_CAST)
330 #define BOOLEAN_FIELD(klass, name) FIELD(name, jboolean, bool_field, EMPTY_CAST)
331 #define LONG_FIELD(klass, name) FIELD(name, jlong, long_field, EMPTY_CAST)
332 #define FLOAT_FIELD(klass, name) FIELD(name, jfloat, float_field, EMPTY_CAST)
333 #define OOP_FIELD(klass, name, signature) FIELD(name, oop, obj_field, EMPTY_CAST)
334 #define OBJARRAYOOP_FIELD(klass, name, signature) FIELD(name, objArrayOop, obj_field, (objArrayOop))
335 #define TYPEARRAYOOP_FIELD(klass, name, signature) FIELD(name, typeArrayOop, obj_field, (typeArrayOop))
336 #define STATIC_OOP_FIELD(klassName, name, signature) STATIC_OOPISH_FIELD(klassName, name, oop, signature)
337 #define STATIC_OBJARRAYOOP_FIELD(klassName, name, signature) STATIC_OOPISH_FIELD(klassName, name, objArrayOop, signature)
338 #define STATIC_OOPISH_FIELD(klassName, name, type, signature) \
339 static int _##name##_offset; \
340 static type name() { \
341 assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
342 InstanceKlass* ik = klassName::klass(); \
343 address addr = ik->static_field_addr(_##name##_offset - InstanceMirrorKlass::offset_of_static_fields()); \
344 if (UseCompressedOops) { \
345 return (type) oopDesc::load_decode_heap_oop((narrowOop *)addr); \
346 } else { \
347 return (type) oopDesc::load_decode_heap_oop((oop*)addr); \
348 } \
349 } \
350 static void set_##name(type x) { \
351 assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
352 assert(klassName::klass() != NULL, "Class not yet loaded: " #klassName); \
353 InstanceKlass* ik = klassName::klass(); \
354 address addr = ik->static_field_addr(_##name##_offset - InstanceMirrorKlass::offset_of_static_fields()); \
355 if (UseCompressedOops) { \
356 oop_store((narrowOop *)addr, x); \
357 } else { \
358 oop_store((oop*)addr, x); \
359 } \
360 }
361 #define STATIC_PRIMITIVE_FIELD(klassName, name, jtypename) \
362 static int _##name##_offset; \
363 static jtypename name() { \
364 assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
365 InstanceKlass* ik = klassName::klass(); \
366 address addr = ik->static_field_addr(_##name##_offset - InstanceMirrorKlass::offset_of_static_fields()); \
367 return *((jtypename *)addr); \
368 } \
369 static void set_##name(jtypename x) { \
370 assert(klassName::klass() != NULL && klassName::klass()->is_linked(), "Class not yet linked: " #klassName); \
371 InstanceKlass* ik = klassName::klass(); \
372 address addr = ik->static_field_addr(_##name##_offset - InstanceMirrorKlass::offset_of_static_fields()); \
373 *((jtypename *)addr) = x; \
374 }
375
376 #define STATIC_INT_FIELD(klassName, name) STATIC_PRIMITIVE_FIELD(klassName, name, jint)
377 #define STATIC_BOOLEAN_FIELD(klassName, name) STATIC_PRIMITIVE_FIELD(klassName, name, jboolean)
378
379 COMPILER_CLASSES_DO(START_CLASS, END_CLASS, CHAR_FIELD, INT_FIELD, BOOLEAN_FIELD, LONG_FIELD, FLOAT_FIELD, OOP_FIELD, TYPEARRAYOOP_FIELD, OBJARRAYOOP_FIELD, STATIC_OOP_FIELD, STATIC_OBJARRAYOOP_FIELD, STATIC_INT_FIELD, STATIC_BOOLEAN_FIELD)
380 #undef START_CLASS
381 #undef END_CLASS
382 #undef FIELD
383 #undef CHAR_FIELD
384 #undef INT_FIELD
385 #undef BOOLEAN_FIELD
386 #undef LONG_FIELD
387 #undef FLOAT_FIELD
388 #undef OOP_FIELD
389 #undef TYPEARRAYOOP_FIELD
390 #undef OBJARRAYOOP_FIELD
391 #undef STATIC_OOPISH_FIELD
392 #undef STATIC_OOP_FIELD
393 #undef STATIC_OBJARRAYOOP_FIELD
394 #undef STATIC_INT_FIELD
395 #undef STATIC_BOOLEAN_FIELD
396 #undef EMPTY_CAST
397
398 void compute_offset(int &dest_offset, Klass* klass, const char* name, const char* signature, bool static_field, TRAPS);
399
400 #endif // SHARE_VM_JVMCI_JVMCIJAVACLASSES_HPP