211
212 class java_lang_Class : AllStatic {
213 friend class VMStructs;
214 friend class JVMCIVMStructs;
215
216 private:
217
218 // The fake offsets are added by the class loader when java.lang.Class is loaded
219
220 static int _klass_offset;
221 static int _array_klass_offset;
222
223 static int _oop_size_offset;
224 static int _static_oop_field_count_offset;
225
226 static int _protection_domain_offset;
227 static int _signers_offset;
228 static int _class_loader_offset;
229 static int _module_offset;
230 static int _component_mirror_offset;
231 static int _name_offset;
232 static int _source_file_offset;
233 static int _classData_offset;
234 static int _classRedefinedCount_offset;
235
236 static bool _offsets_computed;
237
238 static GrowableArray<Klass*>* _fixup_mirror_list;
239 static GrowableArray<Klass*>* _fixup_module_field_list;
240
241 static void set_protection_domain(oop java_class, oop protection_domain);
242 static void set_class_loader(oop java_class, oop class_loader);
243 static void set_component_mirror(oop java_class, oop comp_mirror);
244 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
245 Handle classData, TRAPS);
246 static void set_mirror_module_field(JavaThread* current, Klass* K, Handle mirror, Handle module);
247 public:
248 static void allocate_fixup_lists();
249 static void compute_offsets();
250
251 // Instance creation
252 static void create_mirror(Klass* k, Handle class_loader, Handle module,
253 Handle protection_domain, Handle classData, TRAPS);
254 static void fixup_mirror(Klass* k, TRAPS);
255 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
256 static void update_archived_primitive_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
257 static void update_archived_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
258
259 // Archiving
260 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
261 static void archive_basic_type_mirrors() NOT_CDS_JAVA_HEAP_RETURN;
262 static oop archive_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
263 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror)
264 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
265 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
266 Handle protection_domain,
267 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
268
269 static void fixup_module_field(Klass* k, Handle module);
270
271 // Conversion
272 static Klass* as_Klass(oop java_class);
273 static void set_klass(oop java_class, Klass* klass);
274 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
275 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
276 static void print_signature(oop java_class, outputStream *st);
277 static const char* as_external_name(oop java_class);
278 // Testing
279 static bool is_instance(oop obj);
280
281 static bool is_primitive(oop java_class);
282 static BasicType primitive_type(oop java_class);
283 static oop primitive_mirror(BasicType t);
284 // JVM_NewArray support
285 static Klass* array_klass_acquire(oop java_class);
286 static void release_set_array_klass(oop java_class, Klass* klass);
287 // compiler support for class operations
288 static int klass_offset() { CHECK_INIT(_klass_offset); }
289 static int array_klass_offset() { CHECK_INIT(_array_klass_offset); }
290 // Support for classRedefinedCount field
291 static int classRedefinedCount(oop the_class_mirror);
292 static void set_classRedefinedCount(oop the_class_mirror, int value);
293
294 // Support for embedded per-class oops
295 static oop protection_domain(oop java_class);
296 static oop component_mirror(oop java_class);
297 static objArrayOop signers(oop java_class);
298 static void set_signers(oop java_class, objArrayOop signers);
299 static oop class_data(oop java_class);
300 static void set_class_data(oop java_class, oop classData);
301
302 static int component_mirror_offset() { return _component_mirror_offset; }
303
304 static oop class_loader(oop java_class);
305 static void set_module(oop java_class, oop module);
306 static oop module(oop java_class);
307
308 static oop name(Handle java_class, TRAPS);
309
310 static oop source_file(oop java_class);
311 static void set_source_file(oop java_class, oop source_file);
312
313 static size_t oop_size(oop java_class);
314 static void set_oop_size(HeapWord* java_class, size_t size);
315 static int static_oop_field_count(oop java_class);
316 static void set_static_oop_field_count(oop java_class, int size);
317
318 static GrowableArray<Klass*>* fixup_mirror_list() {
319 return _fixup_mirror_list;
320 }
321 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
322 _fixup_mirror_list = v;
323 }
1291 static void set_flags(oop mname, int flags);
1292
1293 // Link through ResolvedMethodName field to get Method*
1294 static Method* vmtarget(oop mname);
1295 static void set_method(oop mname, oop method);
1296
1297 static intptr_t vmindex(oop mname);
1298 static void set_vmindex(oop mname, intptr_t index);
1299
1300 // Testers
1301 static bool is_subclass(Klass* klass) {
1302 return klass->is_subclass_of(vmClasses::MemberName_klass());
1303 }
1304 static bool is_instance(oop obj);
1305
1306 static bool is_method(oop obj);
1307
1308 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1309 enum {
1310 MN_IS_METHOD = 0x00010000, // method (not constructor)
1311 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
1312 MN_IS_FIELD = 0x00040000, // field
1313 MN_IS_TYPE = 0x00080000, // nested type
1314 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1315 MN_TRUSTED_FINAL = 0x00200000, // trusted final field
1316 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1317 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1318 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1319 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1320 MN_SEARCH_INTERFACES = 0x00200000, // walk implemented interfaces
1321 MN_NESTMATE_CLASS = 0x00000001,
1322 MN_HIDDEN_CLASS = 0x00000002,
1323 MN_STRONG_LOADER_LINK = 0x00000004,
1324 MN_ACCESS_VM_ANNOTATIONS = 0x00000008,
1325 // Lookup modes
1326 MN_MODULE_MODE = 0x00000010,
1327 MN_UNCONDITIONAL_MODE = 0x00000020,
1328 MN_TRUSTED_MODE = -1
1329 };
1330
1331 // Accessors for code generation:
1332 static int clazz_offset() { CHECK_INIT(_clazz_offset); }
1333 static int type_offset() { CHECK_INIT(_type_offset); }
1334 static int flags_offset() { CHECK_INIT(_flags_offset); }
1335 static int method_offset() { CHECK_INIT(_method_offset); }
1834 class java_lang_Short_ShortCache : AllStatic {
1835 private:
1836 static int _static_cache_offset;
1837 public:
1838 static Symbol* symbol();
1839 static void compute_offsets(InstanceKlass* k);
1840 static objArrayOop cache(InstanceKlass *k);
1841 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1842 };
1843
1844 class java_lang_Byte_ByteCache : AllStatic {
1845 private:
1846 static int _static_cache_offset;
1847 public:
1848 static Symbol* symbol();
1849 static void compute_offsets(InstanceKlass* k);
1850 static objArrayOop cache(InstanceKlass *k);
1851 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1852 };
1853
1854
1855 // Interface to java.lang.InternalError objects
1856
1857 #define INTERNALERROR_INJECTED_FIELDS(macro) \
1858 macro(java_lang_InternalError, during_unsafe_access, bool_signature, false)
1859
1860 class java_lang_InternalError : AllStatic {
1861 private:
1862 static int _during_unsafe_access_offset;
1863 public:
1864 static jboolean during_unsafe_access(oop internal_error);
1865 static void set_during_unsafe_access(oop internal_error);
1866 static void compute_offsets();
1867 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1868 };
1869
1870 // Use to declare fields that need to be injected into Java classes
1871 // for the JVM to use. The name_index and signature_index are
1872 // declared in vmSymbols. The may_be_java flag is used to declare
1873 // fields that might already exist in Java but should be injected if
1874 // they don't. Otherwise the field is unconditionally injected and
|
211
212 class java_lang_Class : AllStatic {
213 friend class VMStructs;
214 friend class JVMCIVMStructs;
215
216 private:
217
218 // The fake offsets are added by the class loader when java.lang.Class is loaded
219
220 static int _klass_offset;
221 static int _array_klass_offset;
222
223 static int _oop_size_offset;
224 static int _static_oop_field_count_offset;
225
226 static int _protection_domain_offset;
227 static int _signers_offset;
228 static int _class_loader_offset;
229 static int _module_offset;
230 static int _component_mirror_offset;
231 static int _primary_mirror_offset;
232 static int _secondary_mirror_offset;
233
234 static int _name_offset;
235 static int _source_file_offset;
236 static int _classData_offset;
237 static int _classRedefinedCount_offset;
238
239 static bool _offsets_computed;
240
241 static GrowableArray<Klass*>* _fixup_mirror_list;
242 static GrowableArray<Klass*>* _fixup_module_field_list;
243
244 static void set_protection_domain(oop java_class, oop protection_domain);
245 static void set_class_loader(oop java_class, oop class_loader);
246 static void set_component_mirror(oop java_class, oop comp_mirror);
247 static void set_primary_mirror(oop java_class, oop comp_mirror);
248 static void set_secondary_mirror(oop java_class, oop comp_mirror);
249
250 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain,
251 Handle classData, TRAPS);
252 static void set_mirror_module_field(JavaThread* current, Klass* K, Handle mirror, Handle module);
253 public:
254 static void allocate_fixup_lists();
255 static void compute_offsets();
256
257 // Instance creation
258 static void create_mirror(Klass* k, Handle class_loader, Handle module,
259 Handle protection_domain, Handle classData, TRAPS);
260 static void fixup_mirror(Klass* k, TRAPS);
261 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
262 static oop create_secondary_mirror(Klass* k, Handle mirror, TRAPS);
263 static void update_archived_primitive_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
264 static void update_archived_mirror_native_pointers(oop archived_mirror) NOT_CDS_JAVA_HEAP_RETURN;
265
266 // Archiving
267 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
268 static void archive_basic_type_mirrors() NOT_CDS_JAVA_HEAP_RETURN;
269 static oop archive_mirror(Klass* k) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
270 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror)
271 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
272 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
273 Handle protection_domain,
274 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
275
276 static void fixup_module_field(Klass* k, Handle module);
277
278 // Conversion
279 static Klass* as_Klass(oop java_class);
280 static void set_klass(oop java_class, Klass* klass);
281 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
282 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
283 static void print_signature(oop java_class, outputStream *st);
284 static const char* as_external_name(oop java_class);
285 // Testing
286 static bool is_instance(oop obj);
287
288 static bool is_primitive(oop java_class);
289 static BasicType primitive_type(oop java_class);
290 static oop primitive_mirror(BasicType t);
291 // JVM_NewArray support
292 static Klass* array_klass_acquire(oop java_class);
293 static void release_set_array_klass(oop java_class, Klass* klass);
294 // compiler support for class operations
295 static int klass_offset() { CHECK_INIT(_klass_offset); }
296 static int array_klass_offset() { CHECK_INIT(_array_klass_offset); }
297 static int component_mirror_offset() { CHECK_INIT(_component_mirror_offset); }
298 static int primary_mirror_offset() { CHECK_INIT(_primary_mirror_offset); }
299 static int secondary_mirror_offset() { CHECK_INIT(_secondary_mirror_offset); }
300 // Support for classRedefinedCount field
301 static int classRedefinedCount(oop the_class_mirror);
302 static void set_classRedefinedCount(oop the_class_mirror, int value);
303
304 // Support for embedded per-class oops
305 static oop protection_domain(oop java_class);
306 static oop component_mirror(oop java_class);
307 static oop primary_mirror(oop java_class);
308 static oop secondary_mirror(oop java_class);
309 static bool is_primary_mirror(oop java_class);
310 static bool is_secondary_mirror(oop java_class);
311
312 static objArrayOop signers(oop java_class);
313 static void set_signers(oop java_class, objArrayOop signers);
314 static oop class_data(oop java_class);
315 static void set_class_data(oop java_class, oop classData);
316
317 static oop class_loader(oop java_class);
318 static void set_module(oop java_class, oop module);
319 static oop module(oop java_class);
320
321 static oop name(Handle java_class, TRAPS);
322
323 static oop source_file(oop java_class);
324 static void set_source_file(oop java_class, oop source_file);
325
326 static size_t oop_size(oop java_class);
327 static void set_oop_size(HeapWord* java_class, size_t size);
328 static int static_oop_field_count(oop java_class);
329 static void set_static_oop_field_count(oop java_class, int size);
330
331 static GrowableArray<Klass*>* fixup_mirror_list() {
332 return _fixup_mirror_list;
333 }
334 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
335 _fixup_mirror_list = v;
336 }
1304 static void set_flags(oop mname, int flags);
1305
1306 // Link through ResolvedMethodName field to get Method*
1307 static Method* vmtarget(oop mname);
1308 static void set_method(oop mname, oop method);
1309
1310 static intptr_t vmindex(oop mname);
1311 static void set_vmindex(oop mname, intptr_t index);
1312
1313 // Testers
1314 static bool is_subclass(Klass* klass) {
1315 return klass->is_subclass_of(vmClasses::MemberName_klass());
1316 }
1317 static bool is_instance(oop obj);
1318
1319 static bool is_method(oop obj);
1320
1321 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1322 enum {
1323 MN_IS_METHOD = 0x00010000, // method (not constructor)
1324 MN_IS_OBJECT_CONSTRUCTOR = 0x00020000, // constructor
1325 MN_IS_FIELD = 0x00040000, // field
1326 MN_IS_TYPE = 0x00080000, // nested type
1327 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1328 MN_TRUSTED_FINAL = 0x00200000, // trusted final field
1329 MN_FLATTENED = 0x00400000, // flattened field
1330 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1331 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1332 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1333 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1334 MN_SEARCH_INTERFACES = 0x00200000, // walk implemented interfaces
1335 MN_NESTMATE_CLASS = 0x00000001,
1336 MN_HIDDEN_CLASS = 0x00000002,
1337 MN_STRONG_LOADER_LINK = 0x00000004,
1338 MN_ACCESS_VM_ANNOTATIONS = 0x00000008,
1339 // Lookup modes
1340 MN_MODULE_MODE = 0x00000010,
1341 MN_UNCONDITIONAL_MODE = 0x00000020,
1342 MN_TRUSTED_MODE = -1
1343 };
1344
1345 // Accessors for code generation:
1346 static int clazz_offset() { CHECK_INIT(_clazz_offset); }
1347 static int type_offset() { CHECK_INIT(_type_offset); }
1348 static int flags_offset() { CHECK_INIT(_flags_offset); }
1349 static int method_offset() { CHECK_INIT(_method_offset); }
1848 class java_lang_Short_ShortCache : AllStatic {
1849 private:
1850 static int _static_cache_offset;
1851 public:
1852 static Symbol* symbol();
1853 static void compute_offsets(InstanceKlass* k);
1854 static objArrayOop cache(InstanceKlass *k);
1855 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1856 };
1857
1858 class java_lang_Byte_ByteCache : AllStatic {
1859 private:
1860 static int _static_cache_offset;
1861 public:
1862 static Symbol* symbol();
1863 static void compute_offsets(InstanceKlass* k);
1864 static objArrayOop cache(InstanceKlass *k);
1865 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1866 };
1867
1868 // Interface to java.lang.InternalError objects
1869
1870 #define INTERNALERROR_INJECTED_FIELDS(macro) \
1871 macro(java_lang_InternalError, during_unsafe_access, bool_signature, false)
1872
1873 class java_lang_InternalError : AllStatic {
1874 private:
1875 static int _during_unsafe_access_offset;
1876 public:
1877 static jboolean during_unsafe_access(oop internal_error);
1878 static void set_during_unsafe_access(oop internal_error);
1879 static void compute_offsets();
1880 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
1881 };
1882
1883 // Use to declare fields that need to be injected into Java classes
1884 // for the JVM to use. The name_index and signature_index are
1885 // declared in vmSymbols. The may_be_java flag is used to declare
1886 // fields that might already exist in Java but should be injected if
1887 // they don't. Otherwise the field is unconditionally injected and
|