182 /* support for CDS */ \
183 do_klass(ByteArrayInputStream_klass, java_io_ByteArrayInputStream, Pre ) \
184 do_klass(URL_klass, java_net_URL, Pre ) \
185 do_klass(Jar_Manifest_klass, java_util_jar_Manifest, Pre ) \
186 do_klass(jdk_internal_loader_ClassLoaders_klass, jdk_internal_loader_ClassLoaders, Pre ) \
187 do_klass(jdk_internal_loader_ClassLoaders_AppClassLoader_klass, jdk_internal_loader_ClassLoaders_AppClassLoader, Pre ) \
188 do_klass(jdk_internal_loader_ClassLoaders_PlatformClassLoader_klass, jdk_internal_loader_ClassLoaders_PlatformClassLoader, Pre ) \
189 do_klass(CodeSource_klass, java_security_CodeSource, Pre ) \
190 \
191 do_klass(StackTraceElement_klass, java_lang_StackTraceElement, Opt ) \
192 \
193 /* It's okay if this turns out to be NULL in non-1.4 JDKs. */ \
194 do_klass(nio_Buffer_klass, java_nio_Buffer, Opt ) \
195 \
196 /* Stack Walking */ \
197 do_klass(StackWalker_klass, java_lang_StackWalker, Opt ) \
198 do_klass(AbstractStackWalker_klass, java_lang_StackStreamFactory_AbstractStackWalker, Opt ) \
199 do_klass(StackFrameInfo_klass, java_lang_StackFrameInfo, Opt ) \
200 do_klass(LiveStackFrameInfo_klass, java_lang_LiveStackFrameInfo, Opt ) \
201 \
202 /* Preload boxing klasses */ \
203 do_klass(Boolean_klass, java_lang_Boolean, Pre ) \
204 do_klass(Character_klass, java_lang_Character, Pre ) \
205 do_klass(Float_klass, java_lang_Float, Pre ) \
206 do_klass(Double_klass, java_lang_Double, Pre ) \
207 do_klass(Byte_klass, java_lang_Byte, Pre ) \
208 do_klass(Short_klass, java_lang_Short, Pre ) \
209 do_klass(Integer_klass, java_lang_Integer, Pre ) \
210 do_klass(Long_klass, java_lang_Long, Pre ) \
211 \
212 /* JVMCI classes. These are loaded on-demand. */ \
213 JVMCI_WK_KLASSES_DO(do_klass) \
214 \
215 /*end*/
216
217
218 class SystemDictionary : AllStatic {
219 friend class VMStructs;
220 friend class SystemDictionaryHandles;
221
432 static InstanceKlass* well_known_klass(WKID id) {
433 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
434 return _well_known_klasses[id];
435 }
436
437 static InstanceKlass** well_known_klass_addr(WKID id) {
438 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
439 return &_well_known_klasses[id];
440 }
441 static void well_known_klasses_do(MetaspaceClosure* it);
442
443 // Local definition for direct access to the private array:
444 #define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]
445
446 static InstanceKlass* box_klass(BasicType t) {
447 assert((uint)t < T_VOID+1, "range check");
448 return check_klass(_box_klasses[t]);
449 }
450 static BasicType box_klass_type(Klass* k); // inverse of box_klass
451
452 // methods returning lazily loaded klasses
453 // The corresponding method to load the class must be called before calling them.
454 static InstanceKlass* abstract_ownable_synchronizer_klass() { return check_klass(_abstract_ownable_synchronizer_klass); }
455
456 static void load_abstract_ownable_synchronizer_klass(TRAPS);
457
458 protected:
459 // Returns the class loader data to be used when looking up/updating the
460 // system dictionary.
461 static ClassLoaderData *class_loader_data(Handle class_loader) {
462 return ClassLoaderData::class_loader_data(class_loader());
463 }
464
465 public:
466 // Tells whether ClassLoader.checkPackageAccess is present
467 static bool has_checkPackageAccess() { return _has_checkPackageAccess; }
468
469 static bool Parameter_klass_loaded() { return WK_KLASS(reflect_Parameter_klass) != NULL; }
470 static bool Class_klass_loaded() { return WK_KLASS(Class_klass) != NULL; }
471 static bool Cloneable_klass_loaded() { return WK_KLASS(Cloneable_klass) != NULL; }
472 static bool Object_klass_loaded() { return WK_KLASS(Object_klass) != NULL; }
473 static bool ClassLoader_klass_loaded() { return WK_KLASS(ClassLoader_klass) != NULL; }
474
475 // Returns java system loader
476 static oop java_system_loader();
477
711 // to be called on failure.
712 // Won't throw, but can block.
713 static void resolution_cleanups(Symbol* class_name,
714 ClassLoaderData* loader_data,
715 TRAPS);
716
717 // Initialization
718 static void initialize_preloaded_classes(TRAPS);
719
720 // Class loader constraints
721 static void check_constraints(unsigned int hash,
722 InstanceKlass* k, Handle loader,
723 bool defining, TRAPS);
724 static void update_dictionary(unsigned int d_hash,
725 int p_index, unsigned int p_hash,
726 InstanceKlass* k, Handle loader,
727 TRAPS);
728
729 // Variables holding commonly used klasses (preloaded)
730 static InstanceKlass* _well_known_klasses[];
731
732 // Lazily loaded klasses
733 static InstanceKlass* volatile _abstract_ownable_synchronizer_klass;
734
735 // table of box klasses (int_klass, etc.)
736 static InstanceKlass* _box_klasses[T_VOID+1];
737
738 private:
739 static oop _java_system_loader;
740 static oop _java_platform_loader;
741
742 static bool _has_checkPackageAccess;
743 };
744
745 #endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
|
182 /* support for CDS */ \
183 do_klass(ByteArrayInputStream_klass, java_io_ByteArrayInputStream, Pre ) \
184 do_klass(URL_klass, java_net_URL, Pre ) \
185 do_klass(Jar_Manifest_klass, java_util_jar_Manifest, Pre ) \
186 do_klass(jdk_internal_loader_ClassLoaders_klass, jdk_internal_loader_ClassLoaders, Pre ) \
187 do_klass(jdk_internal_loader_ClassLoaders_AppClassLoader_klass, jdk_internal_loader_ClassLoaders_AppClassLoader, Pre ) \
188 do_klass(jdk_internal_loader_ClassLoaders_PlatformClassLoader_klass, jdk_internal_loader_ClassLoaders_PlatformClassLoader, Pre ) \
189 do_klass(CodeSource_klass, java_security_CodeSource, Pre ) \
190 \
191 do_klass(StackTraceElement_klass, java_lang_StackTraceElement, Opt ) \
192 \
193 /* It's okay if this turns out to be NULL in non-1.4 JDKs. */ \
194 do_klass(nio_Buffer_klass, java_nio_Buffer, Opt ) \
195 \
196 /* Stack Walking */ \
197 do_klass(StackWalker_klass, java_lang_StackWalker, Opt ) \
198 do_klass(AbstractStackWalker_klass, java_lang_StackStreamFactory_AbstractStackWalker, Opt ) \
199 do_klass(StackFrameInfo_klass, java_lang_StackFrameInfo, Opt ) \
200 do_klass(LiveStackFrameInfo_klass, java_lang_LiveStackFrameInfo, Opt ) \
201 \
202 /* support for stack dump lock analysis */ \
203 do_klass(java_util_concurrent_locks_AbstractOwnableSynchronizer_klass, java_util_concurrent_locks_AbstractOwnableSynchronizer, Pre ) \
204 \
205 /* Preload boxing klasses */ \
206 do_klass(Boolean_klass, java_lang_Boolean, Pre ) \
207 do_klass(Character_klass, java_lang_Character, Pre ) \
208 do_klass(Float_klass, java_lang_Float, Pre ) \
209 do_klass(Double_klass, java_lang_Double, Pre ) \
210 do_klass(Byte_klass, java_lang_Byte, Pre ) \
211 do_klass(Short_klass, java_lang_Short, Pre ) \
212 do_klass(Integer_klass, java_lang_Integer, Pre ) \
213 do_klass(Long_klass, java_lang_Long, Pre ) \
214 \
215 /* JVMCI classes. These are loaded on-demand. */ \
216 JVMCI_WK_KLASSES_DO(do_klass) \
217 \
218 /*end*/
219
220
221 class SystemDictionary : AllStatic {
222 friend class VMStructs;
223 friend class SystemDictionaryHandles;
224
435 static InstanceKlass* well_known_klass(WKID id) {
436 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
437 return _well_known_klasses[id];
438 }
439
440 static InstanceKlass** well_known_klass_addr(WKID id) {
441 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob");
442 return &_well_known_klasses[id];
443 }
444 static void well_known_klasses_do(MetaspaceClosure* it);
445
446 // Local definition for direct access to the private array:
447 #define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]
448
449 static InstanceKlass* box_klass(BasicType t) {
450 assert((uint)t < T_VOID+1, "range check");
451 return check_klass(_box_klasses[t]);
452 }
453 static BasicType box_klass_type(Klass* k); // inverse of box_klass
454
455 protected:
456 // Returns the class loader data to be used when looking up/updating the
457 // system dictionary.
458 static ClassLoaderData *class_loader_data(Handle class_loader) {
459 return ClassLoaderData::class_loader_data(class_loader());
460 }
461
462 public:
463 // Tells whether ClassLoader.checkPackageAccess is present
464 static bool has_checkPackageAccess() { return _has_checkPackageAccess; }
465
466 static bool Parameter_klass_loaded() { return WK_KLASS(reflect_Parameter_klass) != NULL; }
467 static bool Class_klass_loaded() { return WK_KLASS(Class_klass) != NULL; }
468 static bool Cloneable_klass_loaded() { return WK_KLASS(Cloneable_klass) != NULL; }
469 static bool Object_klass_loaded() { return WK_KLASS(Object_klass) != NULL; }
470 static bool ClassLoader_klass_loaded() { return WK_KLASS(ClassLoader_klass) != NULL; }
471
472 // Returns java system loader
473 static oop java_system_loader();
474
708 // to be called on failure.
709 // Won't throw, but can block.
710 static void resolution_cleanups(Symbol* class_name,
711 ClassLoaderData* loader_data,
712 TRAPS);
713
714 // Initialization
715 static void initialize_preloaded_classes(TRAPS);
716
717 // Class loader constraints
718 static void check_constraints(unsigned int hash,
719 InstanceKlass* k, Handle loader,
720 bool defining, TRAPS);
721 static void update_dictionary(unsigned int d_hash,
722 int p_index, unsigned int p_hash,
723 InstanceKlass* k, Handle loader,
724 TRAPS);
725
726 // Variables holding commonly used klasses (preloaded)
727 static InstanceKlass* _well_known_klasses[];
728
729 // table of box klasses (int_klass, etc.)
730 static InstanceKlass* _box_klasses[T_VOID+1];
731
732 private:
733 static oop _java_system_loader;
734 static oop _java_platform_loader;
735
736 static bool _has_checkPackageAccess;
737 };
738
739 #endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP
|