261 class java_lang_Class : AllStatic {
262 friend class VMStructs;
263 friend class JVMCIVMStructs;
264
265 private:
266
267 // The fake offsets are added by the class loader when java.lang.Class is loaded
268
269 static int _klass_offset;
270 static int _array_klass_offset;
271
272 static int _oop_size_offset;
273 static int _static_oop_field_count_offset;
274
275 static int _protection_domain_offset;
276 static int _init_lock_offset;
277 static int _signers_offset;
278 static int _class_loader_offset;
279 static int _module_offset;
280 static int _component_mirror_offset;
281 static int _name_offset;
282 static int _source_file_offset;
283 static int _classData_offset;
284 static int _classRedefinedCount_offset;
285
286 static bool _offsets_computed;
287
288 static GrowableArray<Klass*>* _fixup_mirror_list;
289 static GrowableArray<Klass*>* _fixup_module_field_list;
290
291 static void set_init_lock(oop java_class, oop init_lock);
292 static void set_protection_domain(oop java_class, oop protection_domain);
293 static void set_class_loader(oop java_class, oop class_loader);
294 static void set_component_mirror(oop java_class, oop comp_mirror);
295 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
296 Handle classData, TRAPS);
297 static void set_mirror_module_field(JavaThread* current, Klass* K, Handle mirror, Handle module);
298 public:
299 static void allocate_fixup_lists();
300 static void compute_offsets();
301
302 // Instance creation
303 static void create_mirror(Klass* k, Handle class_loader, Handle module,
304 Handle protection_domain, Handle classData, TRAPS);
305 static void fixup_mirror(Klass* k, TRAPS);
306 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
307 static void update_archived_primitive_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
308 static void update_archived_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
309
310 // Archiving
311 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
312 static void archive_basic_type_mirrors() NOT_CDS_JAVA_HEAP_RETURN;
313 static oop archive_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
314 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror)
315 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
316 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
317 Handle protection_domain,
318 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
319
320 static void fixup_module_field(Klass* k, Handle module);
321
322 // Conversion
323 static Klass* as_Klass(oop java_class);
324 static void set_klass(oop java_class, Klass* klass);
325 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
326 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
327 static void print_signature(oop java_class, outputStream *st);
328 static const char* as_external_name(oop java_class);
329 // Testing
330 static bool is_instance(oop obj);
331
332 static bool is_primitive(oop java_class);
333 static BasicType primitive_type(oop java_class);
334 static oop primitive_mirror(BasicType t);
335 // JVM_NewArray support
336 static Klass* array_klass_acquire(oop java_class);
337 static void release_set_array_klass(oop java_class, Klass* klass);
338 // compiler support for class operations
339 static int klass_offset() { CHECK_INIT(_klass_offset); }
340 static int array_klass_offset() { CHECK_INIT(_array_klass_offset); }
341 // Support for classRedefinedCount field
342 static int classRedefinedCount(oop the_class_mirror);
343 static void set_classRedefinedCount(oop the_class_mirror, int value);
344
345 // Support for embedded per-class oops
346 static oop protection_domain(oop java_class);
347 static oop init_lock(oop java_class);
348 static void clear_init_lock(oop java_class) {
349 set_init_lock(java_class, NULL);
350 }
351 static oop component_mirror(oop java_class);
352 static objArrayOop signers(oop java_class);
353 static void set_signers(oop java_class, objArrayOop signers);
354 static oop class_data(oop java_class);
355 static void set_class_data(oop java_class, oop classData);
356
357 static int component_mirror_offset() { return _component_mirror_offset; }
358
359 static oop class_loader(oop java_class);
360 static void set_module(oop java_class, oop module);
361 static oop module(oop java_class);
362
363 static oop name(Handle java_class, TRAPS);
364
365 static oop source_file(oop java_class);
366 static void set_source_file(oop java_class, oop source_file);
367
368 static size_t oop_size(oop java_class);
369 static void set_oop_size(HeapWord* java_class, size_t size);
370 static int static_oop_field_count(oop java_class);
371 static void set_static_oop_field_count(oop java_class, int size);
372
373 static GrowableArray<Klass*>* fixup_mirror_list() {
374 return _fixup_mirror_list;
375 }
376 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
377 _fixup_mirror_list = v;
378 }
1149 static void set_flags(oop mname, int flags);
1150
1151 // Link through ResolvedMethodName field to get Method*
1152 static Method* vmtarget(oop mname);
1153 static void set_method(oop mname, oop method);
1154
1155 static intptr_t vmindex(oop mname);
1156 static void set_vmindex(oop mname, intptr_t index);
1157
1158 // Testers
1159 static bool is_subclass(Klass* klass) {
1160 return klass->is_subclass_of(vmClasses::MemberName_klass());
1161 }
1162 static bool is_instance(oop obj);
1163
1164 static bool is_method(oop obj);
1165
1166 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1167 enum {
1168 MN_IS_METHOD = 0x00010000, // method (not constructor)
1169 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
1170 MN_IS_FIELD = 0x00040000, // field
1171 MN_IS_TYPE = 0x00080000, // nested type
1172 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1173 MN_TRUSTED_FINAL = 0x00200000, // trusted final field
1174 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1175 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1176 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1177 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1178 MN_SEARCH_INTERFACES = 0x00200000, // walk implemented interfaces
1179 MN_NESTMATE_CLASS = 0x00000001,
1180 MN_HIDDEN_CLASS = 0x00000002,
1181 MN_STRONG_LOADER_LINK = 0x00000004,
1182 MN_ACCESS_VM_ANNOTATIONS = 0x00000008,
1183 // Lookup modes
1184 MN_MODULE_MODE = 0x00000010,
1185 MN_UNCONDITIONAL_MODE = 0x00000020,
1186 MN_TRUSTED_MODE = -1
1187 };
1188
1189 // Accessors for code generation:
1190 static int clazz_offset() { CHECK_INIT(_clazz_offset); }
1191 static int type_offset() { CHECK_INIT(_type_offset); }
1192 static int flags_offset() { CHECK_INIT(_flags_offset); }
1193 static int method_offset() { CHECK_INIT(_method_offset); }
1690 class java_lang_Short_ShortCache : AllStatic {
1691 private:
1692 static int _static_cache_offset;
1693 public:
1694 static Symbol* symbol();
1695 static void compute_offsets(InstanceKlass* k);
1696 static objArrayOop cache(InstanceKlass *k);
1697 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1698 };
1699
1700 class java_lang_Byte_ByteCache : AllStatic {
1701 private:
1702 static int _static_cache_offset;
1703 public:
1704 static Symbol* symbol();
1705 static void compute_offsets(InstanceKlass* k);
1706 static objArrayOop cache(InstanceKlass *k);
1707 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1708 };
1709
1710
1711 // Interface to java.lang.InternalError objects
1712
1713 #define INTERNALERROR_INJECTED_FIELDS(macro) \
1714 macro(java_lang_InternalError, during_unsafe_access, bool_signature, false)
1715
1716 class java_lang_InternalError : AllStatic {
1717 private:
1718 static int _during_unsafe_access_offset;
1719 public:
1720 static jboolean during_unsafe_access(oop internal_error);
1721 static void set_during_unsafe_access(oop internal_error);
1722 static void compute_offsets();
1723 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1724 };
1725
1726 // Use to declare fields that need to be injected into Java classes
1727 // for the JVM to use. The name_index and signature_index are
1728 // declared in vmSymbols. The may_be_java flag is used to declare
1729 // fields that might already exist in Java but should be injected if
1730 // they don't. Otherwise the field is unconditionally injected and
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261 class java_lang_Class : AllStatic {
262 friend class VMStructs;
263 friend class JVMCIVMStructs;
264
265 private:
266
267 // The fake offsets are added by the class loader when java.lang.Class is loaded
268
269 static int _klass_offset;
270 static int _array_klass_offset;
271
272 static int _oop_size_offset;
273 static int _static_oop_field_count_offset;
274
275 static int _protection_domain_offset;
276 static int _init_lock_offset;
277 static int _signers_offset;
278 static int _class_loader_offset;
279 static int _module_offset;
280 static int _component_mirror_offset;
281 static int _primary_mirror_offset;
282 static int _secondary_mirror_offset;
283
284 static int _name_offset;
285 static int _source_file_offset;
286 static int _classData_offset;
287 static int _classRedefinedCount_offset;
288
289 static bool _offsets_computed;
290
291 static GrowableArray<Klass*>* _fixup_mirror_list;
292 static GrowableArray<Klass*>* _fixup_module_field_list;
293
294 static void set_init_lock(oop java_class, oop init_lock);
295 static void set_protection_domain(oop java_class, oop protection_domain);
296 static void set_class_loader(oop java_class, oop class_loader);
297 static void set_component_mirror(oop java_class, oop comp_mirror);
298 static void set_primary_mirror(oop java_class, oop comp_mirror);
299 static void set_secondary_mirror(oop java_class, oop comp_mirror);
300
301 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
302 Handle classData, TRAPS);
303 static void set_mirror_module_field(JavaThread* current, Klass* K, Handle mirror, Handle module);
304 public:
305 static void allocate_fixup_lists();
306 static void compute_offsets();
307
308 // Instance creation
309 static void create_mirror(Klass* k, Handle class_loader, Handle module,
310 Handle protection_domain, Handle classData, TRAPS);
311 static void fixup_mirror(Klass* k, TRAPS);
312 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
313 static oop create_secondary_mirror(Klass* k, Handle mirror, TRAPS);
314 static void update_archived_primitive_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
315 static void update_archived_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
316
317 // Archiving
318 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
319 static void archive_basic_type_mirrors() NOT_CDS_JAVA_HEAP_RETURN;
320 static oop archive_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
321 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror)
322 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
323 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
324 Handle protection_domain,
325 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
326
327 static void fixup_module_field(Klass* k, Handle module);
328
329 // Conversion
330 static Klass* as_Klass(oop java_class);
331 static void set_klass(oop java_class, Klass* klass);
332 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
333 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
334 static void print_signature(oop java_class, outputStream *st);
335 static const char* as_external_name(oop java_class);
336 // Testing
337 static bool is_instance(oop obj);
338
339 static bool is_primitive(oop java_class);
340 static BasicType primitive_type(oop java_class);
341 static oop primitive_mirror(BasicType t);
342 // JVM_NewArray support
343 static Klass* array_klass_acquire(oop java_class);
344 static void release_set_array_klass(oop java_class, Klass* klass);
345 // compiler support for class operations
346 static int klass_offset() { CHECK_INIT(_klass_offset); }
347 static int array_klass_offset() { CHECK_INIT(_array_klass_offset); }
348 static int component_mirror_offset() { CHECK_INIT(_component_mirror_offset); }
349 static int primary_mirror_offset() { CHECK_INIT(_primary_mirror_offset); }
350 static int secondary_mirror_offset() { CHECK_INIT(_secondary_mirror_offset); }
351 // Support for classRedefinedCount field
352 static int classRedefinedCount(oop the_class_mirror);
353 static void set_classRedefinedCount(oop the_class_mirror, int value);
354
355 // Support for embedded per-class oops
356 static oop protection_domain(oop java_class);
357 static oop init_lock(oop java_class);
358 static void clear_init_lock(oop java_class) {
359 set_init_lock(java_class, NULL);
360 }
361 static oop component_mirror(oop java_class);
362 static oop primary_mirror(oop java_class);
363 static oop secondary_mirror(oop java_class);
364 static bool is_primary_mirror(oop java_class);
365 static bool is_secondary_mirror(oop java_class);
366
367 static objArrayOop signers(oop java_class);
368 static void set_signers(oop java_class, objArrayOop signers);
369 static oop class_data(oop java_class);
370 static void set_class_data(oop java_class, oop classData);
371
372 static oop class_loader(oop java_class);
373 static void set_module(oop java_class, oop module);
374 static oop module(oop java_class);
375
376 static oop name(Handle java_class, TRAPS);
377
378 static oop source_file(oop java_class);
379 static void set_source_file(oop java_class, oop source_file);
380
381 static size_t oop_size(oop java_class);
382 static void set_oop_size(HeapWord* java_class, size_t size);
383 static int static_oop_field_count(oop java_class);
384 static void set_static_oop_field_count(oop java_class, int size);
385
386 static GrowableArray<Klass*>* fixup_mirror_list() {
387 return _fixup_mirror_list;
388 }
389 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
390 _fixup_mirror_list = v;
391 }
1162 static void set_flags(oop mname, int flags);
1163
1164 // Link through ResolvedMethodName field to get Method*
1165 static Method* vmtarget(oop mname);
1166 static void set_method(oop mname, oop method);
1167
1168 static intptr_t vmindex(oop mname);
1169 static void set_vmindex(oop mname, intptr_t index);
1170
1171 // Testers
1172 static bool is_subclass(Klass* klass) {
1173 return klass->is_subclass_of(vmClasses::MemberName_klass());
1174 }
1175 static bool is_instance(oop obj);
1176
1177 static bool is_method(oop obj);
1178
1179 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1180 enum {
1181 MN_IS_METHOD = 0x00010000, // method (not constructor)
1182 MN_IS_OBJECT_CONSTRUCTOR = 0x00020000, // constructor
1183 MN_IS_FIELD = 0x00040000, // field
1184 MN_IS_TYPE = 0x00080000, // nested type
1185 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1186 MN_TRUSTED_FINAL = 0x00200000, // trusted final field
1187 MN_FLATTENED = 0x00400000, // flattened field
1188 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1189 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1190 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1191 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1192 MN_SEARCH_INTERFACES = 0x00200000, // walk implemented interfaces
1193 MN_NESTMATE_CLASS = 0x00000001,
1194 MN_HIDDEN_CLASS = 0x00000002,
1195 MN_STRONG_LOADER_LINK = 0x00000004,
1196 MN_ACCESS_VM_ANNOTATIONS = 0x00000008,
1197 // Lookup modes
1198 MN_MODULE_MODE = 0x00000010,
1199 MN_UNCONDITIONAL_MODE = 0x00000020,
1200 MN_TRUSTED_MODE = -1
1201 };
1202
1203 // Accessors for code generation:
1204 static int clazz_offset() { CHECK_INIT(_clazz_offset); }
1205 static int type_offset() { CHECK_INIT(_type_offset); }
1206 static int flags_offset() { CHECK_INIT(_flags_offset); }
1207 static int method_offset() { CHECK_INIT(_method_offset); }
1704 class java_lang_Short_ShortCache : AllStatic {
1705 private:
1706 static int _static_cache_offset;
1707 public:
1708 static Symbol* symbol();
1709 static void compute_offsets(InstanceKlass* k);
1710 static objArrayOop cache(InstanceKlass *k);
1711 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1712 };
1713
1714 class java_lang_Byte_ByteCache : AllStatic {
1715 private:
1716 static int _static_cache_offset;
1717 public:
1718 static Symbol* symbol();
1719 static void compute_offsets(InstanceKlass* k);
1720 static objArrayOop cache(InstanceKlass *k);
1721 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1722 };
1723
1724 // Interface to java.lang.InternalError objects
1725
1726 #define INTERNALERROR_INJECTED_FIELDS(macro) \
1727 macro(java_lang_InternalError, during_unsafe_access, bool_signature, false)
1728
1729 class java_lang_InternalError : AllStatic {
1730 private:
1731 static int _during_unsafe_access_offset;
1732 public:
1733 static jboolean during_unsafe_access(oop internal_error);
1734 static void set_during_unsafe_access(oop internal_error);
1735 static void compute_offsets();
1736 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1737 };
1738
1739 // Use to declare fields that need to be injected into Java classes
1740 // for the JVM to use. The name_index and signature_index are
1741 // declared in vmSymbols. The may_be_java flag is used to declare
1742 // fields that might already exist in Java but should be injected if
1743 // they don't. Otherwise the field is unconditionally injected and
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