234 friend class VMStructs;
235 friend class JVMCIVMStructs;
236
237 private:
238 // The fake offsets are added by the class loader when java.lang.Class is loaded
239
240 static int _klass_offset;
241 static int _array_klass_offset;
242
243 static int _oop_size_offset;
244 static int _static_oop_field_count_offset;
245
246 static int _protection_domain_offset;
247 static int _init_lock_offset;
248 static int _signers_offset;
249 static int _class_loader_offset;
250 static int _module_offset;
251 static int _component_mirror_offset;
252 static int _name_offset;
253 static int _source_file_offset;
254
255 static bool offsets_computed;
256 static int classRedefinedCount_offset;
257
258 static GrowableArray<Klass*>* _fixup_mirror_list;
259 static GrowableArray<Klass*>* _fixup_module_field_list;
260
261 static void set_init_lock(oop java_class, oop init_lock);
262 static void set_protection_domain(oop java_class, oop protection_domain);
263 static void set_class_loader(oop java_class, oop class_loader);
264 static void set_component_mirror(oop java_class, oop comp_mirror);
265 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain, TRAPS);
266 static void set_mirror_module_field(Klass* K, Handle mirror, Handle module, TRAPS);
267 public:
268 static void allocate_fixup_lists();
269 static void compute_offsets();
270
271 // Instance creation
272 static void create_mirror(Klass* k, Handle class_loader, Handle module,
273 Handle protection_domain, TRAPS);
274 static void fixup_mirror(Klass* k, TRAPS);
275 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
276
277 // Archiving
278 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
279 static void archive_basic_type_mirrors(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
280 static oop archive_mirror(Klass* k, TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
281 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror, Thread *THREAD)
282 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
283 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
284 Handle protection_domain,
285 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
286
287 static void fixup_module_field(Klass* k, Handle module);
288
289 // Conversion
290 static Klass* as_Klass(oop java_class);
291 static Klass* as_Klass_raw(oop java_class);
292 static void set_klass(oop java_class, Klass* klass);
293 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
294 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
295 static void print_signature(oop java_class, outputStream *st);
296 static const char* as_external_name(oop java_class);
297 // Testing
298 static bool is_instance(oop obj);
299
300 static bool is_primitive(oop java_class);
301 static BasicType primitive_type(oop java_class);
302 static oop primitive_mirror(BasicType t);
303 // JVM_NewArray support
304 static Klass* array_klass_acquire(oop java_class);
305 static void release_set_array_klass(oop java_class, Klass* klass);
306 // compiler support for class operations
307 static int klass_offset_in_bytes() { return _klass_offset; }
308 static int array_klass_offset_in_bytes() { return _array_klass_offset; }
309 // Support for classRedefinedCount field
310 static int classRedefinedCount(oop the_class_mirror);
311 static void set_classRedefinedCount(oop the_class_mirror, int value);
312
313 // Support for embedded per-class oops
314 static oop protection_domain(oop java_class);
315 static oop init_lock(oop java_class);
316 static oop component_mirror(oop java_class);
317 static objArrayOop signers(oop java_class);
318 static void set_signers(oop java_class, objArrayOop signers);
319
320 static oop class_loader(oop java_class);
321 static void set_module(oop java_class, oop module);
322 static oop module(oop java_class);
323
324 static oop name(Handle java_class, TRAPS);
325
326 static oop source_file(oop java_class);
327 static void set_source_file(oop java_class, oop source_file);
328
329 static int oop_size(oop java_class);
330 static int oop_size_raw(oop java_class);
331 static void set_oop_size(HeapWord* java_class, int size);
332 static int static_oop_field_count(oop java_class);
333 static int static_oop_field_count_raw(oop java_class);
334 static void set_static_oop_field_count(oop java_class, int size);
335
336 static GrowableArray<Klass*>* fixup_mirror_list() {
337 return _fixup_mirror_list;
338 }
339 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
340 _fixup_mirror_list = v;
341 }
342
343 static GrowableArray<Klass*>* fixup_module_field_list() {
1104 static int flags(oop mname);
1105 static void set_flags(oop mname, int flags);
1106
1107 // Link through ResolvedMethodName field to get Method*
1108 static Method* vmtarget(oop mname);
1109 static void set_method(oop mname, oop method);
1110
1111 static intptr_t vmindex(oop mname);
1112 static void set_vmindex(oop mname, intptr_t index);
1113
1114 // Testers
1115 static bool is_subclass(Klass* klass) {
1116 return klass->is_subclass_of(SystemDictionary::MemberName_klass());
1117 }
1118 static bool is_instance(oop obj);
1119
1120 static bool is_method(oop obj);
1121
1122 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1123 enum {
1124 MN_IS_METHOD = 0x00010000, // method (not constructor)
1125 MN_IS_CONSTRUCTOR = 0x00020000, // constructor
1126 MN_IS_FIELD = 0x00040000, // field
1127 MN_IS_TYPE = 0x00080000, // nested type
1128 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1129 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1130 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1131 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1132 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1133 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces
1134 };
1135
1136 // Accessors for code generation:
1137 static int clazz_offset_in_bytes() { return _clazz_offset; }
1138 static int type_offset_in_bytes() { return _type_offset; }
1139 static int name_offset_in_bytes() { return _name_offset; }
1140 static int flags_offset_in_bytes() { return _flags_offset; }
1141 static int method_offset_in_bytes() { return _method_offset; }
1142 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
1143 };
1144
1145
1146 // Interface to java.lang.invoke.MethodType objects
1147
1148 class java_lang_invoke_MethodType: AllStatic {
1149 friend class JavaClasses;
1150
1151 private:
1152 static int _rtype_offset;
1153 static int _ptypes_offset;
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234 friend class VMStructs;
235 friend class JVMCIVMStructs;
236
237 private:
238 // The fake offsets are added by the class loader when java.lang.Class is loaded
239
240 static int _klass_offset;
241 static int _array_klass_offset;
242
243 static int _oop_size_offset;
244 static int _static_oop_field_count_offset;
245
246 static int _protection_domain_offset;
247 static int _init_lock_offset;
248 static int _signers_offset;
249 static int _class_loader_offset;
250 static int _module_offset;
251 static int _component_mirror_offset;
252 static int _name_offset;
253 static int _source_file_offset;
254 static int _inline_mirror_offset;
255 static int _indirect_mirror_offset;
256
257 static bool offsets_computed;
258 static int classRedefinedCount_offset;
259
260 static GrowableArray<Klass*>* _fixup_mirror_list;
261 static GrowableArray<Klass*>* _fixup_module_field_list;
262
263 static void set_init_lock(oop java_class, oop init_lock);
264 static void set_protection_domain(oop java_class, oop protection_domain);
265 static void set_class_loader(oop java_class, oop class_loader);
266 static void set_component_mirror(oop java_class, oop comp_mirror);
267 static void initialize_mirror_fields(Klass* k, Handle mirror, Handle protection_domain, TRAPS);
268 static void set_mirror_module_field(Klass* K, Handle mirror, Handle module, TRAPS);
269 public:
270 static void allocate_fixup_lists();
271 static void compute_offsets();
272
273 // Instance creation
274 static void create_mirror(Klass* k, Handle class_loader, Handle module,
275 Handle protection_domain, TRAPS);
276 static void fixup_mirror(Klass* k, TRAPS);
277 static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS);
278 static oop create_indirect_type_mirror(Klass* k, Handle mirror, TRAPS);
279
280 // Archiving
281 static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN;
282 static void archive_basic_type_mirrors(TRAPS) NOT_CDS_JAVA_HEAP_RETURN;
283 static oop archive_mirror(Klass* k, TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(NULL);
284 static oop process_archived_mirror(Klass* k, oop mirror, oop archived_mirror, Thread *THREAD)
285 NOT_CDS_JAVA_HEAP_RETURN_(NULL);
286 static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module,
287 Handle protection_domain,
288 TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false);
289
290 static void fixup_module_field(Klass* k, Handle module);
291
292 // Conversion
293 static Klass* as_Klass(oop java_class);
294 static Klass* as_Klass_raw(oop java_class);
295 static void set_klass(oop java_class, Klass* klass);
296 static BasicType as_BasicType(oop java_class, Klass** reference_klass = NULL);
297 static Symbol* as_signature(oop java_class, bool intern_if_not_found);
298 static void print_signature(oop java_class, outputStream *st);
299 static const char* as_external_name(oop java_class);
300 // Testing
301 static bool is_instance(oop obj);
302
303 static bool is_primitive(oop java_class);
304 static BasicType primitive_type(oop java_class);
305 static oop primitive_mirror(BasicType t);
306 // JVM_NewArray support
307 static Klass* array_klass_acquire(oop java_class);
308 static void release_set_array_klass(oop java_class, Klass* klass);
309 // compiler support for class operations
310 static int klass_offset_in_bytes() { return _klass_offset; }
311 static int array_klass_offset_in_bytes() { return _array_klass_offset; }
312 static int inline_mirror_offset_in_bytes() { return _inline_mirror_offset; }
313 static int component_mirror_offset_in_bytes() { return _component_mirror_offset; }
314 // Support for classRedefinedCount field
315 static int classRedefinedCount(oop the_class_mirror);
316 static void set_classRedefinedCount(oop the_class_mirror, int value);
317
318 // Support for embedded per-class oops
319 static oop protection_domain(oop java_class);
320 static oop init_lock(oop java_class);
321 static oop component_mirror(oop java_class);
322 static objArrayOop signers(oop java_class);
323 static void set_signers(oop java_class, objArrayOop signers);
324
325 static oop class_loader(oop java_class);
326 static void set_module(oop java_class, oop module);
327 static oop module(oop java_class);
328
329 static void set_indirect_type_mirror(oop java_class, oop mirror);
330 static oop indirect_type_mirror(oop java_class);
331 static bool is_indirect_type(oop java_class) { // Must match "Class.isIndirectType()"
332 return indirect_type_mirror(java_class) == NULL || oopDesc::equals(indirect_type_mirror(java_class), java_class);
333 }
334
335 static void set_inline_type_mirror(oop java_class, oop mirror);
336 static oop inline_type_mirror(oop java_class);
337
338 static oop name(Handle java_class, TRAPS);
339
340 static oop source_file(oop java_class);
341 static void set_source_file(oop java_class, oop source_file);
342
343 static int oop_size(oop java_class);
344 static int oop_size_raw(oop java_class);
345 static void set_oop_size(HeapWord* java_class, int size);
346 static int static_oop_field_count(oop java_class);
347 static int static_oop_field_count_raw(oop java_class);
348 static void set_static_oop_field_count(oop java_class, int size);
349
350 static GrowableArray<Klass*>* fixup_mirror_list() {
351 return _fixup_mirror_list;
352 }
353 static void set_fixup_mirror_list(GrowableArray<Klass*>* v) {
354 _fixup_mirror_list = v;
355 }
356
357 static GrowableArray<Klass*>* fixup_module_field_list() {
1118 static int flags(oop mname);
1119 static void set_flags(oop mname, int flags);
1120
1121 // Link through ResolvedMethodName field to get Method*
1122 static Method* vmtarget(oop mname);
1123 static void set_method(oop mname, oop method);
1124
1125 static intptr_t vmindex(oop mname);
1126 static void set_vmindex(oop mname, intptr_t index);
1127
1128 // Testers
1129 static bool is_subclass(Klass* klass) {
1130 return klass->is_subclass_of(SystemDictionary::MemberName_klass());
1131 }
1132 static bool is_instance(oop obj);
1133
1134 static bool is_method(oop obj);
1135
1136 // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants):
1137 enum {
1138 MN_IS_METHOD = 0x00010000, // method (not object constructor)
1139 MN_IS_OBJECT_CONSTRUCTOR = 0x00020000, // object constructor
1140 MN_IS_FIELD = 0x00040000, // field
1141 MN_IS_TYPE = 0x00080000, // nested type
1142 MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected
1143 MN_REFERENCE_KIND_SHIFT = 24, // refKind
1144 MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT,
1145 // The SEARCH_* bits are not for MN.flags but for the matchFlags argument of MHN.getMembers:
1146 MN_SEARCH_SUPERCLASSES = 0x00100000, // walk super classes
1147 MN_SEARCH_INTERFACES = 0x00200000 // walk implemented interfaces
1148 };
1149
1150 // Accessors for code generation:
1151 static int clazz_offset_in_bytes() { return _clazz_offset; }
1152 static int type_offset_in_bytes() { return _type_offset; }
1153 static int name_offset_in_bytes() { return _name_offset; }
1154 static int flags_offset_in_bytes() { return _flags_offset; }
1155 static int method_offset_in_bytes() { return _method_offset; }
1156 static int vmindex_offset_in_bytes() { return _vmindex_offset; }
1157 };
1158
1159
1160 // Interface to java.lang.invoke.MethodType objects
1161
1162 class java_lang_invoke_MethodType: AllStatic {
1163 friend class JavaClasses;
1164
1165 private:
1166 static int _rtype_offset;
1167 static int _ptypes_offset;
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