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src/hotspot/share/classfile/javaClasses.hpp
1 951 строка
62 KB
Coleen Phillimore
8371860: Make non-public methods in java_lang_Class private
14 ноя 2025, 17:12
14 ноя 2025, 17:12
36daa26
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/* * Copyright (c) 1997, 2025, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #ifndef SHARE_CLASSFILE_JAVACLASSES_HPP #define SHARE_CLASSFILE_JAVACLASSES_HPP #include "classfile/vmClasses.hpp" #include "oops/instanceKlass.hpp" #include "oops/oopsHierarchy.hpp" #include "oops/symbol.hpp" #include "runtime/handles.hpp" #include "runtime/os.hpp" #include "utilities/macros.hpp" #include "utilities/utf8.hpp" #include "utilities/vmEnums.hpp" class JvmtiThreadState; class RecordComponent; class SerializeClosure; class ObjectWaiter; class ObjectMonitor; #define CHECK_INIT(offset) assert(offset != 0, "should be initialized"); return offset; // Interface to java.lang.Object objects class java_lang_Object : AllStatic { public: static void register_natives(TRAPS); }; // Interface to java.lang.String objects // The flags field is a collection of bits representing boolean values used // internally by the VM. #define STRING_INJECTED_FIELDS(macro) \ macro(java_lang_String, flags, byte_signature, false) class java_lang_String : AllStatic { private: static int _value_offset; static int _hash_offset; static int _hashIsZero_offset; static int _coder_offset; static int _flags_offset; static bool _initialized; static Handle basic_create(int length, bool byte_arr, TRAPS); static inline void set_coder(oop string, jbyte coder); // Bitmasks for values in the injected flags field. static const uint8_t _deduplication_forbidden_mask = 1 << 0; static const uint8_t _deduplication_requested_mask = 1 << 1; static int flags_offset() { CHECK_INIT(_flags_offset); } // Return the address of the injected flags field. static inline uint8_t* flags_addr(oop java_string); // Test whether the designated bit of the injected flags field is set. static inline bool is_flag_set(oop java_string, uint8_t flag_mask); // Atomically test and set the designated bit of the injected flags field, // returning true if the bit was already set. static bool test_and_set_flag(oop java_string, uint8_t flag_mask); static inline unsigned int hash_code_impl(oop java_string, bool update); public: // Coders enum Coder { CODER_LATIN1 = 0, CODER_UTF16 = 1 }; static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Instance creation static Handle create_from_unicode(const jchar* unicode, int len, TRAPS); static oop create_oop_from_unicode(const jchar* unicode, int len, TRAPS); static Handle create_from_str(const char* utf8_str, TRAPS); static oop create_oop_from_str(const char* utf8_str, TRAPS); static Handle create_from_symbol(const Symbol* symbol, TRAPS); static Handle create_from_platform_dependent_str(const char* str, TRAPS); static void set_compact_strings(bool value); static int value_offset() { CHECK_INIT(_value_offset); } static int coder_offset() { CHECK_INIT(_coder_offset); } static inline void set_value(oop string, typeArrayOop buffer); // Set the deduplication_forbidden flag true. This flag is sticky; once // set it never gets cleared. This is set when a String is interned in // the StringTable, to prevent string deduplication from changing the // String's value array. static inline void set_deduplication_forbidden(oop java_string); // Test and set the deduplication_requested flag. Returns the old value // of the flag. This flag is sticky; once set it never gets cleared. // Some GCs may use this flag when deciding whether to request // deduplication of a String, to avoid multiple requests for the same // object. static inline bool test_and_set_deduplication_requested(oop java_string); // Accessors static inline typeArrayOop value(oop java_string); static inline typeArrayOop value_no_keepalive(oop java_string); static inline bool hash_is_set(oop string); static inline bool is_latin1(oop java_string); static inline bool deduplication_forbidden(oop java_string); static inline bool deduplication_requested(oop java_string); static inline int length(oop java_string); static inline int length(oop java_string, typeArrayOop string_value); static size_t utf8_length(oop java_string); static size_t utf8_length(oop java_string, typeArrayOop string_value); // Legacy variants that truncate the length if needed static int utf8_length_as_int(oop java_string); static int utf8_length_as_int(oop java_string, typeArrayOop string_value); // String converters static char* as_utf8_string(oop java_string); // `length` is set to the length of the utf8 sequence. static char* as_utf8_string(oop java_string, size_t& length); static char* as_utf8_string_full(oop java_string, char* buf, size_t buflen, size_t& length); static char* as_utf8_string(oop java_string, char* buf, size_t buflen); static char* as_utf8_string(oop java_string, int start, int len); static char* as_utf8_string(oop java_string, typeArrayOop value, char* buf, size_t buflen); static char* as_utf8_string(oop java_string, typeArrayOop value, int start, int len, char* buf, size_t buflen); static char* as_platform_dependent_str(Handle java_string, TRAPS); static jchar* as_unicode_string(oop java_string, int& length, TRAPS); static jchar* as_unicode_string_or_null(oop java_string, int& length); // produce an ascii string with all other values quoted using \u#### static char* as_quoted_ascii(oop java_string); // Compute the hash value for a java.lang.String object which would // contain the characters passed in. // // As the hash value used by the String object itself, in // String.hashCode(). This value is normally calculated in Java code // in the String.hashCode method(), but is precomputed for String // objects in the shared archive file. // hash P(31) from Kernighan & Ritchie // // For this reason, THIS ALGORITHM MUST MATCH String.hashCode(). static unsigned int hash_code(const jchar* s, int len) { unsigned int h = 0; while (len-- > 0) { h = 31*h + (unsigned int) *s; s++; } return h; } static unsigned int hash_code(const jbyte* s, int len) { unsigned int h = 0; while (len-- > 0) { h = 31*h + (((unsigned int) *s) & 0xFF); s++; } return h; } static unsigned int hash_code(const char* utf8_str, size_t utf8_len) { unsigned int h = 0; int unicode_length = UTF8::unicode_length(utf8_str, utf8_len); jchar c; while (unicode_length-- > 0) { utf8_str = UTF8::next(utf8_str, &c); h = 31 * h + ((unsigned int)c); } return h; } static unsigned int hash_code(oop java_string); static unsigned int hash_code_noupdate(oop java_string); // Compare strings (of different types/encodings), length is the string (array) length static bool equals(oop java_string, const jchar* chars, int len); static bool equals(oop java_string, const char* utf8_str, size_t utf8_len); static bool equals(oop str1, oop str2); static inline bool value_equals(typeArrayOop str_value1, typeArrayOop str_value2); // Conversion between '.' and '/' formats, and allocate a String from the result. static Handle externalize_classname(Symbol* java_name, TRAPS); // Conversion static Symbol* as_symbol(oop java_string); static Symbol* as_symbol_or_null(oop java_string); // Tester static inline bool is_instance(oop obj); // Debugging static void print(oop java_string, outputStream* st, int max_length = MaxStringPrintSize); friend class JavaClasses; friend class StringTable; }; // Interface to java.lang.Class objects #define CLASS_INJECTED_FIELDS(macro) \ macro(java_lang_Class, klass, intptr_signature, false) \ macro(java_lang_Class, array_klass, intptr_signature, false) \ macro(java_lang_Class, oop_size, int_signature, false) \ macro(java_lang_Class, static_oop_field_count, int_signature, false) \ macro(java_lang_Class, source_file, object_signature, false) \ macro(java_lang_Class, init_lock, object_signature, false) class java_lang_Class : AllStatic { friend class VMStructs; friend class JVMCIVMStructs; friend class HeapShared; private: // The fake offsets are added by the class loader when java.lang.Class is loaded static int _klass_offset; static int _array_klass_offset; static int _oop_size_offset; static int _static_oop_field_count_offset; static int _protection_domain_offset; static int _init_lock_offset; static int _signers_offset; static int _class_loader_offset; static int _module_offset; static int _component_mirror_offset; static int _name_offset; static int _source_file_offset; static int _classData_offset; static int _classRedefinedCount_offset; static int _reflectionData_offset; static int _modifiers_offset; static int _is_primitive_offset; static int _raw_access_flags_offset; static bool _offsets_computed; static GrowableArray<Klass*>* _fixup_mirror_list; static GrowableArray<Klass*>* _fixup_module_field_list; static void set_init_lock(oop java_class, oop init_lock); static void set_protection_domain(oop java_class, oop protection_domain); static void set_class_loader(oop java_class, oop class_loader); static void set_component_mirror(oop java_class, oop comp_mirror); static void initialize_mirror_fields(InstanceKlass* ik, Handle mirror, Handle protection_domain, Handle classData, TRAPS); static void set_mirror_module_field(JavaThread* current, Klass* K, Handle mirror, Handle module); static void set_modifiers(oop java_class, u2 value); static void set_raw_access_flags(oop java_class, u2 value); static void set_is_primitive(oop java_class); static void release_set_array_klass(oop java_class, Klass* klass); public: static void allocate_fixup_lists(); static void compute_offsets(); // Instance creation static void allocate_mirror(Klass* k, bool is_scratch, Handle protection_domain, Handle classData, Handle& mirror, Handle& comp_mirror, TRAPS); // returns mirror and comp_mirror static void create_mirror(Klass* k, Handle class_loader, Handle module, Handle protection_domain, Handle classData, TRAPS); static void fixup_mirror(Klass* k, TRAPS); static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); // Archiving static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static void create_scratch_mirror(Klass* k, TRAPS) NOT_CDS_JAVA_HEAP_RETURN; static bool restore_archived_mirror(Klass *k, Handle class_loader, Handle module, Handle protection_domain, TRAPS) NOT_CDS_JAVA_HEAP_RETURN_(false); static void fixup_module_field(Klass* k, Handle module); // Conversion -- java_class must not be null. The return value is null only if java_class is a primitive type. static Klass* as_Klass(oop java_class); static InstanceKlass* as_InstanceKlass(oop java_class); static void set_klass(oop java_class, Klass* klass); static BasicType as_BasicType(oop java_class, Klass** reference_klass = nullptr); static Symbol* as_signature(oop java_class, bool intern_if_not_found); static void print_signature(oop java_class, outputStream *st); static const char* as_external_name(oop java_class); // Testing static bool is_instance(oop obj); static bool is_primitive(oop java_class); static BasicType primitive_type(oop java_class); static oop primitive_mirror(BasicType t); static Klass* array_klass_acquire(oop java_class); // compiler support for class operations static int klass_offset() { CHECK_INIT(_klass_offset); } static int array_klass_offset() { CHECK_INIT(_array_klass_offset); } // Support for classRedefinedCount field static int classRedefinedCount(oop the_class_mirror); static void set_classRedefinedCount(oop the_class_mirror, int value); // Support for embedded per-class oops static oop protection_domain(oop java_class); static oop init_lock(oop java_class); static void clear_init_lock(oop java_class) { set_init_lock(java_class, nullptr); } static oop component_mirror(oop java_class); static int component_mirror_offset() { return _component_mirror_offset; } static objArrayOop signers(oop java_class); static oop class_data(oop java_class); static void set_class_data(oop java_class, oop classData); static int reflection_data_offset() { return _reflectionData_offset; } static oop class_loader(oop java_class); static void set_module(oop java_class, oop module); static oop module(oop java_class); static oop name(Handle java_class, TRAPS); static oop source_file(oop java_class); static void set_source_file(oop java_class, oop source_file); static int modifiers(oop java_class); static size_t oop_size(oop java_class); static void set_oop_size(HeapWord* java_class, size_t size); static int static_oop_field_count(oop java_class); static void set_static_oop_field_count(oop java_class, int size); static GrowableArray<Klass*>* fixup_mirror_list() { return _fixup_mirror_list; } static void set_fixup_mirror_list(GrowableArray<Klass*>* v) { _fixup_mirror_list = v; } static GrowableArray<Klass*>* fixup_module_field_list() { return _fixup_module_field_list; } static void set_fixup_module_field_list(GrowableArray<Klass*>* v) { _fixup_module_field_list = v; } // Debugging friend class JavaClasses; }; // Interface to java.lang.Thread objects #define THREAD_INJECTED_FIELDS(macro) \ macro(java_lang_Thread, jvmti_thread_state, intptr_signature, false) \ macro(java_lang_Thread, jvmti_VTMS_transition_disable_count, int_signature, false) \ macro(java_lang_Thread, jvmti_is_in_VTMS_transition, bool_signature, false) \ JFR_ONLY(macro(java_lang_Thread, jfr_epoch, short_signature, false)) class java_lang_Thread : AllStatic { friend class java_lang_VirtualThread; friend class JVMCIVMStructs; private: // Note that for this class the layout changed between JDK1.2 and JDK1.3, // so we compute the offsets at startup rather than hard-wiring them. static int _holder_offset; static int _name_offset; static int _contextClassLoader_offset; static int _eetop_offset; static int _jvmti_thread_state_offset; static int _jvmti_VTMS_transition_disable_count_offset; static int _jvmti_is_in_VTMS_transition_offset; static int _interrupted_offset; static int _interruptLock_offset; static int _tid_offset; static int _continuation_offset; static int _park_blocker_offset; static int _scopedValueBindings_offset; JFR_ONLY(static int _jfr_epoch_offset;) static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Returns the JavaThread associated with the thread obj static JavaThread* thread(oop java_thread); static JavaThread* thread_acquire(oop java_thread); // Set JavaThread for instance static void set_thread(oop java_thread, JavaThread* thread); static void release_set_thread(oop java_thread, JavaThread* thread); // FieldHolder static oop holder(oop java_thread); // interruptLock static oop interrupt_lock(oop java_thread); // Interrupted status static bool interrupted(oop java_thread); static void set_interrupted(oop java_thread, bool val); // Name static oop name(oop java_thread); static void set_name(oop java_thread, oop name); // Priority static ThreadPriority priority(oop java_thread); static void set_priority(oop java_thread, ThreadPriority priority); // Thread group static oop threadGroup(oop java_thread); // Alive (NOTE: this is not really a field, but provides the correct // definition without doing a Java call) static bool is_alive(oop java_thread); // Daemon static bool is_daemon(oop java_thread); static void set_daemon(oop java_thread); // Context ClassLoader static oop context_class_loader(oop java_thread); // Stack size hint static jlong stackSize(oop java_thread); // Thread ID static int64_t thread_id(oop java_thread); static ByteSize thread_id_offset(); // Continuation static inline oop continuation(oop java_thread); static JvmtiThreadState* jvmti_thread_state(oop java_thread); static void set_jvmti_thread_state(oop java_thread, JvmtiThreadState* state); static int VTMS_transition_disable_count(oop java_thread); static void inc_VTMS_transition_disable_count(oop java_thread); static void dec_VTMS_transition_disable_count(oop java_thread); static bool is_in_VTMS_transition(oop java_thread); static void set_is_in_VTMS_transition(oop java_thread, bool val); static int is_in_VTMS_transition_offset(); // Clear all scoped value bindings on error static void clear_scopedValueBindings(oop java_thread); // Blocker object responsible for thread parking static oop park_blocker(oop java_thread); // Write thread status info to threadStatus field of java.lang.Thread. static void set_thread_status(oop java_thread_oop, JavaThreadStatus status); // Read thread status info from threadStatus field of java.lang.Thread. static JavaThreadStatus get_thread_status(oop java_thread_oop); static const char* thread_status_name(oop java_thread_oop); // Fill in current stack trace, can cause GC static oop async_get_stack_trace(jobject jthread, TRAPS); JFR_ONLY(static u2 jfr_epoch(oop java_thread);) JFR_ONLY(static void set_jfr_epoch(oop java_thread, u2 epoch);) JFR_ONLY(static int jfr_epoch_offset() { CHECK_INIT(_jfr_epoch_offset); }) // Debugging friend class JavaClasses; }; // Interface to java.lang.Thread$FieldHolder objects class java_lang_Thread_FieldHolder : AllStatic { private: static int _group_offset; static int _priority_offset; static int _stackSize_offset; static int _daemon_offset; static int _thread_status_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static oop threadGroup(oop holder); static ThreadPriority priority(oop holder); static void set_priority(oop holder, ThreadPriority priority); static jlong stackSize(oop holder); static bool is_daemon(oop holder); static void set_daemon(oop holder, bool val); static void set_thread_status(oop holder, JavaThreadStatus status); static JavaThreadStatus get_thread_status(oop holder); friend class JavaClasses; }; // Interface to java.lang.Thread$Constants objects class java_lang_Thread_Constants : AllStatic { private: static int _static_VTHREAD_GROUP_offset; static int _static_NOT_SUPPORTED_CLASSLOADER_offset; static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; public: static oop get_VTHREAD_GROUP(); friend class JavaClasses; }; // Interface to java.lang.ThreadGroup objects class java_lang_ThreadGroup : AllStatic { private: static int _parent_offset; static int _name_offset; static int _maxPriority_offset; static int _daemon_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // parent ThreadGroup static oop parent(oop java_thread_group); // name static const char* name(oop java_thread_group); // maxPriority in group static ThreadPriority maxPriority(oop java_thread_group); // Daemon static bool is_daemon(oop java_thread_group); // Debugging friend class JavaClasses; }; // Interface to java.lang.VirtualThread objects #define VTHREAD_INJECTED_FIELDS(macro) \ macro(java_lang_VirtualThread, objectWaiter, intptr_signature, false) class java_lang_VirtualThread : AllStatic { private: static int static_vthread_scope_offset; static int _carrierThread_offset; static int _continuation_offset; static int _state_offset; static int _next_offset; static int _onWaitingList_offset; static int _notified_offset; static int _interruptible_wait_offset; static int _recheckInterval_offset; static int _timeout_offset; static int _objectWaiter_offset; JFR_ONLY(static int _jfr_epoch_offset;) public: enum { NEW = 0, STARTED = 1, RUNNING = 2, PARKING = 3, PARKED = 4, PINNED = 5, TIMED_PARKING = 6, TIMED_PARKED = 7, TIMED_PINNED = 8, UNPARKED = 9, YIELDING = 10, YIELDED = 11, BLOCKING = 12, BLOCKED = 13, UNBLOCKED = 14, WAITING = 15, WAIT = 16, // waiting in Object.wait TIMED_WAITING = 17, TIMED_WAIT = 18, // waiting in timed-Object.wait TERMINATED = 99, // additional state bits SUSPENDED = 1 << 8, // suspended when unmounted }; static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::VirtualThread_klass()); } static bool is_instance(oop obj); static oop vthread_scope(); static oop carrier_thread(oop vthread); static oop continuation(oop vthread); static int state(oop vthread); static void set_state(oop vthread, int state); static int cmpxchg_state(oop vthread, int old_state, int new_state); static oop next(oop vthread); static void set_next(oop vthread, oop next_vthread); static bool set_onWaitingList(oop vthread, OopHandle& list_head); static jlong timeout(oop vthread); static void set_timeout(oop vthread, jlong value); static void set_notified(oop vthread, jboolean value); static void set_interruptible_wait(oop vthread, jboolean value); static bool is_preempted(oop vthread); static JavaThreadStatus map_state_to_thread_status(int state); static inline ObjectWaiter* objectWaiter(oop vthread); static inline void set_objectWaiter(oop vthread, ObjectWaiter* waiter); static ObjectMonitor* current_pending_monitor(oop vthread); static ObjectMonitor* current_waiting_monitor(oop vthread); }; // Interface to java.lang.Throwable objects class java_lang_Throwable: AllStatic { friend class BacktraceBuilder; friend class BacktraceIterator; private: // Trace constants enum { trace_methods_offset = 0, trace_bcis_offset = 1, trace_mirrors_offset = 2, trace_names_offset = 3, trace_conts_offset = 4, trace_next_offset = 5, trace_hidden_offset = 6, trace_size = 7, trace_chunk_size = 32 }; static int _backtrace_offset; static int _detailMessage_offset; static int _stackTrace_offset; static int _depth_offset; static int _cause_offset; static int _static_unassigned_stacktrace_offset; // StackTrace (programmatic access, new since 1.4) static void clear_stacktrace(oop throwable); // Stacktrace (post JDK 1.7.0 to allow immutability protocol to be followed) static void set_stacktrace(oop throwable, oop st_element_array); static oop unassigned_stacktrace(); public: // Backtrace static oop backtrace(oop throwable); static void set_backtrace(oop throwable, oop value); static int depth(oop throwable); static void set_depth(oop throwable, int value); // Message static int get_detailMessage_offset() { CHECK_INIT(_detailMessage_offset); } static oop message(oop throwable); static const char* message_as_utf8(oop throwable); static void set_message(oop throwable, oop value); static oop cause(oop throwable); static void print_stack_element(outputStream *st, Method* method, int bci); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocate space for backtrace (created but stack trace not filled in) static void allocate_backtrace(Handle throwable, TRAPS); // Fill in current stack trace for throwable with preallocated backtrace (no GC) static void fill_in_stack_trace_of_preallocated_backtrace(Handle throwable); // Fill in current stack trace, can cause GC static void fill_in_stack_trace(Handle throwable, const methodHandle& method, TRAPS); static void fill_in_stack_trace(Handle throwable, const methodHandle& method = methodHandle()); // Programmatic access to stack trace static void get_stack_trace_elements(int depth, Handle backtrace, objArrayHandle stack_trace, TRAPS); // For recreating class initialization error exceptions. static Handle create_initialization_error(JavaThread* current, Handle throwable); // Printing static void print(oop throwable, outputStream* st); static void print_stack_trace(Handle throwable, outputStream* st); static void java_printStackTrace(Handle throwable, TRAPS); // Debugging friend class JavaClasses; // Gets the method and bci of the top frame (TOS). Returns false if this failed. static bool get_top_method_and_bci(oop throwable, Method** method, int* bci); }; // Interface to java.lang.reflect.AccessibleObject objects class java_lang_reflect_AccessibleObject: AllStatic { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. static int _override_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static jboolean override(oop reflect); static void set_override(oop reflect, jboolean value); // Debugging friend class JavaClasses; }; // Interface to java.lang.reflect.Method objects class java_lang_reflect_Method : public java_lang_reflect_AccessibleObject { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. static int _clazz_offset; static int _name_offset; static int _returnType_offset; static int _parameterTypes_offset; static int _exceptionTypes_offset; static int _slot_offset; static int _modifiers_offset; static int _signature_offset; static int _annotations_offset; static int _parameter_annotations_offset; static int _annotation_default_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(TRAPS); // Accessors static oop clazz(oop reflect); static void set_clazz(oop reflect, oop value); static void set_name(oop method, oop value); static oop return_type(oop method); static void set_return_type(oop method, oop value); static oop parameter_types(oop method); static void set_parameter_types(oop method, oop value); static int slot(oop reflect); static void set_slot(oop reflect, int value); static void set_exception_types(oop method, oop value); static void set_modifiers(oop method, int value); static void set_signature(oop method, oop value); static void set_annotations(oop method, oop value); static void set_parameter_annotations(oop method, oop value); static void set_annotation_default(oop method, oop value); // Debugging friend class JavaClasses; }; // Interface to java.lang.reflect.Constructor objects class java_lang_reflect_Constructor : public java_lang_reflect_AccessibleObject { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. static int _clazz_offset; static int _parameterTypes_offset; static int _exceptionTypes_offset; static int _slot_offset; static int _modifiers_offset; static int _signature_offset; static int _annotations_offset; static int _parameter_annotations_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(TRAPS); // Accessors static oop clazz(oop reflect); static void set_clazz(oop reflect, oop value); static oop parameter_types(oop constructor); static void set_parameter_types(oop constructor, oop value); static int slot(oop reflect); static void set_slot(oop reflect, int value); static void set_exception_types(oop constructor, oop value); static void set_modifiers(oop constructor, int value); static void set_signature(oop constructor, oop value); static void set_annotations(oop constructor, oop value); static void set_parameter_annotations(oop method, oop value); // Debugging friend class JavaClasses; }; // Interface to java.lang.reflect.Field objects class java_lang_reflect_Field : public java_lang_reflect_AccessibleObject { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. static int _clazz_offset; static int _name_offset; static int _type_offset; static int _slot_offset; static int _modifiers_offset; static int _trusted_final_offset; static int _signature_offset; static int _annotations_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(TRAPS); // Accessors static oop clazz(oop reflect); static void set_clazz(oop reflect, oop value); static oop name(oop field); static void set_name(oop field, oop value); static oop type(oop field); static void set_type(oop field, oop value); static int slot(oop reflect); static void set_slot(oop reflect, int value); static int modifiers(oop field); static void set_modifiers(oop field, int value); static void set_trusted_final(oop field); static void set_signature(oop constructor, oop value); static void set_annotations(oop constructor, oop value); // Debugging friend class JavaClasses; }; class java_lang_reflect_Parameter { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. static int _name_offset; static int _modifiers_offset; static int _index_offset; static int _executable_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(TRAPS); // Accessors static oop name(oop field); static void set_name(oop field, oop value); static int index(oop reflect); static void set_index(oop reflect, int value); static int modifiers(oop reflect); static void set_modifiers(oop reflect, int value); static oop executable(oop constructor); static void set_executable(oop constructor, oop value); friend class JavaClasses; }; #define MODULE_INJECTED_FIELDS(macro) \ macro(java_lang_Module, module_entry, intptr_signature, false) class java_lang_Module { private: static int _loader_offset; static int _name_offset; static int _module_entry_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(Handle loader, Handle module_name, TRAPS); // Testers static bool is_instance(oop obj); // Accessors static oop loader(oop module); static void set_loader(oop module, oop value); // CDS static int module_entry_offset() { return _module_entry_offset; } static oop name(oop module); static void set_name(oop module, oop value); static ModuleEntry* module_entry(oop module); static ModuleEntry* module_entry_raw(oop module); static void set_module_entry(oop module, ModuleEntry* module_entry); friend class JavaClasses; }; #define CONSTANTPOOL_INJECTED_FIELDS(macro) \ macro(reflect_ConstantPool, vmholder, object_signature, false) // Interface to jdk.internal.reflect.ConstantPool objects class reflect_ConstantPool { private: // Note that to reduce dependencies on the JDK we compute these // offsets at run-time. This field is the oop offset for the // actual constant pool, previously called constantPoolOop. static int _vmholder_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Allocation static Handle create(TRAPS); // Accessors static void set_cp(oop reflect, ConstantPool* value); static ConstantPool* get_cp(oop reflect); // Debugging friend class JavaClasses; }; // Interface to java.lang primitive type boxing objects: // - java.lang.Boolean // - java.lang.Character // - java.lang.Float // - java.lang.Double // - java.lang.Byte // - java.lang.Short // - java.lang.Integer // - java.lang.Long // This could be separated out into 8 individual classes. class java_lang_boxing_object: AllStatic { private: static int _value_offset; static int _long_value_offset; static void compute_offsets(); static oop initialize_and_allocate(BasicType type, TRAPS); public: // Allocation. Returns a boxed value, or null for invalid type. static oop create(BasicType type, jvalue* value, TRAPS); // Accessors. Returns the basic type being boxed, or T_ILLEGAL for invalid oop. static BasicType get_value(oop box, jvalue* value); static BasicType set_value(oop box, jvalue* value); static BasicType basic_type(oop box); static bool is_instance(oop box) { return basic_type(box) != T_ILLEGAL; } static bool is_instance(oop box, BasicType type) { return basic_type(box) == type; } static void print(oop box, outputStream* st) { jvalue value; print(get_value(box, &value), &value, st); } static void print(BasicType type, jvalue* value, outputStream* st); static int value_offset(BasicType type) { return is_double_word_type(type) ? _long_value_offset : _value_offset; } static void serialize_offsets(SerializeClosure* f); // Debugging friend class JavaClasses; }; // Interface to java.lang.ref.Reference objects class java_lang_ref_Reference: AllStatic { static int _referent_offset; static int _queue_offset; static int _next_offset; static int _discovered_offset; static bool _offsets_initialized; public: // Accessors static inline oop weak_referent_no_keepalive(oop ref); static inline oop weak_referent(oop ref); static inline oop phantom_referent_no_keepalive(oop ref); static inline oop unknown_referent_no_keepalive(oop ref); static inline void clear_referent(oop ref); static inline void clear_referent_raw(oop ref); static inline HeapWord* referent_addr_raw(oop ref); static inline oop next(oop ref); static inline void set_next(oop ref, oop value); static inline void set_next_raw(oop ref, oop value); static inline HeapWord* next_addr_raw(oop ref); static inline oop discovered(oop ref); static inline void set_discovered(oop ref, oop value); static inline void set_discovered_raw(oop ref, oop value); static inline HeapWord* discovered_addr_raw(oop ref); static bool is_referent_field(oop obj, ptrdiff_t offset); static inline bool is_final(oop ref); static inline bool is_phantom(oop ref); static inline bool is_weak(oop ref); static inline bool is_soft(oop ref); static int referent_offset() { CHECK_INIT(_referent_offset); } static int queue_offset() { CHECK_INIT(_queue_offset); } static int next_offset() { CHECK_INIT(_next_offset); } static int discovered_offset() { CHECK_INIT(_discovered_offset); } static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; // Interface to java.lang.ref.SoftReference objects class java_lang_ref_SoftReference: public java_lang_ref_Reference { static int _timestamp_offset; static int _static_clock_offset; public: // Accessors static jlong timestamp(oop ref); // Accessors for statics static jlong clock(); static void set_clock(jlong value); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; // Interface to java.lang.invoke.MethodHandle objects class java_lang_invoke_MethodHandle: AllStatic { friend class JavaClasses; private: static int _type_offset; // the MethodType of this MH static int _form_offset; // the LambdaForm of this MH static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop type(oop mh); static void set_type(oop mh, oop mtype); static oop form(oop mh); static void set_form(oop mh, oop lform); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::MethodHandle_klass()); } static bool is_instance(oop obj); // Accessors for code generation: static int type_offset() { CHECK_INIT(_type_offset); } static int form_offset() { CHECK_INIT(_form_offset); } }; // Interface to java.lang.invoke.DirectMethodHandle objects class java_lang_invoke_DirectMethodHandle: AllStatic { friend class JavaClasses; private: static int _member_offset; // the MemberName of this DMH static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop member(oop mh); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::DirectMethodHandle_klass()); } static bool is_instance(oop obj); // Accessors for code generation: static int member_offset() { CHECK_INIT(_member_offset); } }; // Interface to java.lang.invoke.LambdaForm objects // (These are a private interface for managing adapter code generation.) class java_lang_invoke_LambdaForm: AllStatic { friend class JavaClasses; private: static int _vmentry_offset; // type is MemberName static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop vmentry(oop lform); // Testers static bool is_subclass(Klass* klass) { return vmClasses::LambdaForm_klass() != nullptr && klass->is_subclass_of(vmClasses::LambdaForm_klass()); } static bool is_instance(oop obj); // Accessors for code generation: static int vmentry_offset() { CHECK_INIT(_vmentry_offset); } }; // Interface to java.lang.invoke.NativeEntryPoint objects // (These are a private interface for managing adapter code generation.) class jdk_internal_foreign_abi_NativeEntryPoint: AllStatic { friend class JavaClasses; private: static int _method_type_offset; static int _downcall_stub_address_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop method_type(oop entry); static jlong downcall_stub_address(oop entry); // Testers static bool is_subclass(Klass* klass) { return vmClasses::NativeEntryPoint_klass() != nullptr && klass->is_subclass_of(vmClasses::NativeEntryPoint_klass()); } static bool is_instance(oop obj); // Accessors for code generation: static int method_type_offset_in_bytes() { return _method_type_offset; } static int downcall_stub_address_offset_in_bytes() { return _downcall_stub_address_offset; } }; class jdk_internal_foreign_abi_ABIDescriptor: AllStatic { friend class JavaClasses; private: static int _inputStorage_offset; static int _outputStorage_offset; static int _volatileStorage_offset; static int _stackAlignment_offset; static int _shadowSpace_offset; static int _scratch1_offset; static int _scratch2_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static objArrayOop inputStorage(oop entry); static objArrayOop outputStorage(oop entry); static objArrayOop volatileStorage(oop entry); static jint stackAlignment(oop entry); static jint shadowSpace(oop entry); static oop scratch1(oop entry); static oop scratch2(oop entry); // Testers static bool is_subclass(Klass* klass) { return vmClasses::ABIDescriptor_klass() != nullptr && klass->is_subclass_of(vmClasses::ABIDescriptor_klass()); } static bool is_instance(oop obj); }; class jdk_internal_foreign_abi_VMStorage: AllStatic { friend class JavaClasses; private: static int _type_offset; static int _indexOrOffset_offset; static int _segmentMaskOrSize_offset; static int _debugName_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static jbyte type(oop entry); static jint index_or_offset(oop entry); static jshort segment_mask_or_size(oop entry); static oop debugName(oop entry); // Testers static bool is_subclass(Klass* klass) { return vmClasses::VMStorage_klass() != nullptr && klass->is_subclass_of(vmClasses::VMStorage_klass()); } static bool is_instance(oop obj); }; class jdk_internal_foreign_abi_CallConv: AllStatic { friend class JavaClasses; private: static int _argRegs_offset; static int _retRegs_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static objArrayOop argRegs(oop entry); static objArrayOop retRegs(oop entry); // Testers static bool is_subclass(Klass* klass) { return vmClasses::CallConv_klass() != nullptr && klass->is_subclass_of(vmClasses::CallConv_klass()); } static bool is_instance(oop obj); }; // Interface to java.lang.invoke.MemberName objects // (These are a private interface for Java code to query the class hierarchy.) #define RESOLVEDMETHOD_INJECTED_FIELDS(macro) \ macro(java_lang_invoke_ResolvedMethodName, vmtarget, intptr_signature, false) class java_lang_invoke_ResolvedMethodName : AllStatic { friend class JavaClasses; static int _vmtarget_offset; static int _vmholder_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static int vmtarget_offset() { CHECK_INIT(_vmtarget_offset); } static Method* vmtarget(oop resolved_method); static void set_vmtarget(oop resolved_method, Method* method); static void set_vmholder(oop resolved_method, oop holder); // find or create resolved member name static oop find_resolved_method(const methodHandle& m, TRAPS); static bool is_instance(oop resolved_method); }; #define MEMBERNAME_INJECTED_FIELDS(macro) \ macro(java_lang_invoke_MemberName, vmindex, intptr_signature, false) class java_lang_invoke_MemberName: AllStatic { friend class JavaClasses; private: // From java.lang.invoke.MemberName: // private Class<?> clazz; // class in which the method is defined // private String name; // may be null if not yet materialized // private Object type; // may be null if not yet materialized // private int flags; // modifier bits; see reflect.Modifier // private ResolvedMethodName method; // holds VM-specific target value // private intptr_t vmindex; // member index within class or interface static int _clazz_offset; static int _name_offset; static int _type_offset; static int _flags_offset; static int _method_offset; static int _vmindex_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop clazz(oop mname); static void set_clazz(oop mname, oop clazz); static oop type(oop mname); static void set_type(oop mname, oop type); static oop name(oop mname); static void set_name(oop mname, oop name); static int flags(oop mname); static void set_flags(oop mname, int flags); // Link through ResolvedMethodName field to get Method* static Method* vmtarget(oop mname); static void set_method(oop mname, oop method); static intptr_t vmindex(oop mname); static void set_vmindex(oop mname, intptr_t index); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::MemberName_klass()); } static bool is_instance(oop obj); static bool is_method(oop obj); // Relevant integer codes (keep these in synch. with MethodHandleNatives.Constants): enum { MN_IS_METHOD = 0x00010000, // method (not constructor) MN_IS_CONSTRUCTOR = 0x00020000, // constructor MN_IS_FIELD = 0x00040000, // field MN_IS_TYPE = 0x00080000, // nested type MN_CALLER_SENSITIVE = 0x00100000, // @CallerSensitive annotation detected MN_TRUSTED_FINAL = 0x00200000, // trusted final field MN_HIDDEN_MEMBER = 0x00400000, // @Hidden annotation detected MN_REFERENCE_KIND_SHIFT = 24, // refKind MN_REFERENCE_KIND_MASK = 0x0F000000 >> MN_REFERENCE_KIND_SHIFT, MN_NESTMATE_CLASS = 0x00000001, MN_HIDDEN_CLASS = 0x00000002, MN_STRONG_LOADER_LINK = 0x00000004, MN_ACCESS_VM_ANNOTATIONS = 0x00000008, // Lookup modes MN_MODULE_MODE = 0x00000010, MN_UNCONDITIONAL_MODE = 0x00000020, MN_TRUSTED_MODE = -1 }; // Accessors for code generation: static int clazz_offset() { CHECK_INIT(_clazz_offset); } static int type_offset() { CHECK_INIT(_type_offset); } static int flags_offset() { CHECK_INIT(_flags_offset); } static int method_offset() { CHECK_INIT(_method_offset); } static int vmindex_offset() { CHECK_INIT(_vmindex_offset); } }; // Interface to java.lang.invoke.MethodType objects class java_lang_invoke_MethodType: AllStatic { friend class JavaClasses; private: static int _rtype_offset; static int _ptypes_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop rtype(oop mt); static objArrayOop ptypes(oop mt); static oop ptype(oop mt, int index); static int ptype_count(oop mt); static int ptype_slot_count(oop mt); // extra counts for long/double static int rtype_slot_count(oop mt); // extra counts for long/double static Symbol* as_signature(oop mt, bool intern_if_not_found); static void print_signature(oop mt, outputStream* st); static bool is_instance(oop obj); static bool equals(oop mt1, oop mt2); // Accessors for code generation: static int rtype_offset() { CHECK_INIT(_rtype_offset); } static int ptypes_offset() { CHECK_INIT(_ptypes_offset); } }; // Interface to java.lang.invoke.CallSite objects #define CALLSITE_INJECTED_FIELDS(macro) \ macro(java_lang_invoke_CallSite, vmdependencies, intptr_signature, false) \ macro(java_lang_invoke_CallSite, last_cleanup, long_signature, false) class java_lang_invoke_CallSite: AllStatic { friend class JavaClasses; private: static int _target_offset; static int _vmdependencies_offset; static int _last_cleanup_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static oop target( oop site); static void set_target( oop site, oop target); static void set_target_volatile( oop site, oop target); static DependencyContext vmdependencies(oop call_site); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::CallSite_klass()); } static bool is_instance(oop obj); // Accessors for code generation: static int target_offset() { CHECK_INIT(_target_offset); } }; // Interface to java.lang.invoke.ConstantCallSite objects class java_lang_invoke_ConstantCallSite: AllStatic { friend class JavaClasses; private: static int _is_frozen_offset; static void compute_offsets(); public: static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Accessors static jboolean is_frozen(oop site); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::ConstantCallSite_klass()); } static bool is_instance(oop obj); }; // Interface to java.lang.ClassLoader objects #define CLASSLOADER_INJECTED_FIELDS(macro) \ macro(java_lang_ClassLoader, loader_data, intptr_signature, false) class java_lang_ClassLoader : AllStatic { private: static int _loader_data_offset; static int _parent_offset; static int _parallelCapable_offset; static int _name_offset; static int _nameAndId_offset; static int _unnamedModule_offset; static void compute_offsets(); public: // Support for CDS static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static int loader_data_offset() { return _loader_data_offset; } static ClassLoaderData* loader_data_acquire(oop loader); static ClassLoaderData* loader_data(oop loader); static void release_set_loader_data(oop loader, ClassLoaderData* new_data); static oop parent(oop loader); static oop parent_no_keepalive(oop loader); static oop name(oop loader); static oop nameAndId(oop loader); static bool isAncestor(oop loader, oop cl); // Support for parallelCapable field static bool parallelCapable(oop the_class_mirror); static bool is_trusted_loader(oop loader); // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::ClassLoader_klass()); } static bool is_instance(oop obj); static oop unnamedModule(oop loader); // Debugging friend class JavaClasses; }; // Interface to java.lang.System objects class java_lang_System : AllStatic { private: static int _static_in_offset; static int _static_out_offset; static int _static_err_offset; public: static int in_offset() { CHECK_INIT(_static_in_offset); } static int out_offset() { CHECK_INIT(_static_out_offset); } static int err_offset() { CHECK_INIT(_static_err_offset); } static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Debugging friend class JavaClasses; }; // Interface to java.lang.StackTraceElement objects class java_lang_StackTraceElement: AllStatic { private: static int _declaringClassObject_offset; static int _classLoaderName_offset; static int _moduleName_offset; static int _moduleVersion_offset; static int _declaringClass_offset; static int _methodName_offset; static int _fileName_offset; static int _lineNumber_offset; // Setters static void set_classLoaderName(oop element, oop value); static void set_moduleName(oop element, oop value); static void set_moduleVersion(oop element, oop value); static void set_declaringClass(oop element, oop value); static void set_methodName(oop element, oop value); static void set_fileName(oop element, oop value); static void set_lineNumber(oop element, int value); static void set_declaringClassObject(oop element, oop value); static void decode_file_and_line(Handle java_mirror, InstanceKlass* holder, int version, const methodHandle& method, int bci, Symbol*& source, oop& source_file, int& line_number, TRAPS); public: // Create an instance of StackTraceElement static oop create(const methodHandle& method, int bci, TRAPS); static void fill_in(Handle element, InstanceKlass* holder, const methodHandle& method, int version, int bci, Symbol* name, TRAPS); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; #if INCLUDE_JVMCI static void decode(const methodHandle& method, int bci, Symbol*& fileName, int& lineNumber, TRAPS); #endif // Debugging friend class JavaClasses; }; class Backtrace: AllStatic { public: // Helper backtrace functions to store bci|version together. static int merge_bci_and_version(int bci, int version); static int merge_mid_and_cpref(int mid, int cpref); static int bci_at(unsigned int merged); static int version_at(unsigned int merged); static int mid_at(unsigned int merged); static int cpref_at(unsigned int merged); static int get_line_number(Method* method, int bci); static Symbol* get_source_file_name(InstanceKlass* holder, int version); // Debugging friend class JavaClasses; }; class java_lang_ClassFrameInfo: AllStatic { private: static int _classOrMemberName_offset; static int _flags_offset; public: static oop classOrMemberName(oop info); static int flags(oop info); // Setters static void init_class(Handle stackFrame, const methodHandle& m); static void init_method(Handle stackFrame, const methodHandle& m, TRAPS); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Debugging friend class JavaClasses; }; // Interface to java.lang.StackFrameInfo objects #define STACKFRAMEINFO_INJECTED_FIELDS(macro) \ macro(java_lang_StackFrameInfo, version, short_signature, false) class java_lang_StackFrameInfo: AllStatic { private: static int _type_offset; static int _name_offset; static int _bci_offset; static int _version_offset; static int _contScope_offset; public: // Getters static oop name(oop info); static oop type(oop info); static Method* get_method(oop info); // Setters static void set_method_and_bci(Handle stackFrame, const methodHandle& method, int bci, oop cont, TRAPS); static void set_name(oop info, oop value); static void set_type(oop info, oop value); static void set_bci(oop info, int value); static void set_version(oop info, short value); static void set_contScope(oop info, oop value); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static void to_stack_trace_element(Handle stackFrame, Handle stack_trace_element, TRAPS); // Debugging friend class JavaClasses; }; class java_lang_LiveStackFrameInfo: AllStatic { private: static int _monitors_offset; static int _locals_offset; static int _operands_offset; static int _mode_offset; public: static void set_monitors(oop info, oop value); static void set_locals(oop info, oop value); static void set_operands(oop info, oop value); static void set_mode(oop info, int value); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Debugging friend class JavaClasses; }; // Interface to java.lang.reflect.RecordComponent objects class java_lang_reflect_RecordComponent: AllStatic { private: static int _clazz_offset; static int _name_offset; static int _type_offset; static int _accessor_offset; static int _signature_offset; static int _annotations_offset; static int _typeAnnotations_offset; // Setters static void set_clazz(oop element, oop value); static void set_name(oop element, oop value); static void set_type(oop element, oop value); static void set_accessor(oop element, oop value); static void set_signature(oop element, oop value); static void set_annotations(oop element, oop value); static void set_typeAnnotations(oop element, oop value); public: // Create an instance of RecordComponent static oop create(InstanceKlass* holder, RecordComponent* component, TRAPS); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Debugging friend class JavaClasses; }; // Interface to java.lang.AssertionStatusDirectives objects class java_lang_AssertionStatusDirectives: AllStatic { private: static int _classes_offset; static int _classEnabled_offset; static int _packages_offset; static int _packageEnabled_offset; static int _deflt_offset; public: // Setters static void set_classes(oop obj, oop val); static void set_classEnabled(oop obj, oop val); static void set_packages(oop obj, oop val); static void set_packageEnabled(oop obj, oop val); static void set_deflt(oop obj, bool val); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Debugging friend class JavaClasses; }; class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { private: static int _owner_offset; public: static void compute_offsets(); static oop get_owner_threadObj(oop obj); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; // Interface to jdk.internal.misc.UnsafeConsants class jdk_internal_misc_UnsafeConstants : AllStatic { public: static void set_unsafe_constants(); static void compute_offsets() { } static void serialize_offsets(SerializeClosure* f) { } }; // Interface to jdk.internal.vm.vector.VectorSupport.VectorPayload objects class vector_VectorPayload : AllStatic { private: static int _payload_offset; public: static void set_payload(oop o, oop val); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; // Testers static bool is_subclass(Klass* klass) { return klass->is_subclass_of(vmClasses::vector_VectorPayload_klass()); } static bool is_instance(oop obj); }; class java_lang_Integer : AllStatic { public: static jint value(oop obj); }; class java_lang_Long : AllStatic { public: static jlong value(oop obj); }; class java_lang_Character : AllStatic { public: static jchar value(oop obj); }; class java_lang_Short : AllStatic { public: static jshort value(oop obj); }; class java_lang_Byte : AllStatic { public: static jbyte value(oop obj); }; class java_lang_Boolean : AllStatic { private: static int _static_TRUE_offset; static int _static_FALSE_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static oop get_TRUE(InstanceKlass *k); static oop get_FALSE(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; static jboolean value(oop obj); }; class java_lang_Integer_IntegerCache : AllStatic { private: static int _static_cache_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static objArrayOop cache(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; class java_lang_Long_LongCache : AllStatic { private: static int _static_cache_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static objArrayOop cache(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; class java_lang_Character_CharacterCache : AllStatic { private: static int _static_cache_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static objArrayOop cache(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; class java_lang_Short_ShortCache : AllStatic { private: static int _static_cache_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static objArrayOop cache(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; class java_lang_Byte_ByteCache : AllStatic { private: static int _static_cache_offset; public: static Symbol* symbol(); static void compute_offsets(InstanceKlass* k); static objArrayOop cache(InstanceKlass *k); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; // Interface to java.lang.InternalError objects #define INTERNALERROR_INJECTED_FIELDS(macro) \ macro(java_lang_InternalError, during_unsafe_access, bool_signature, false) class java_lang_InternalError : AllStatic { private: static int _during_unsafe_access_offset; public: static jboolean during_unsafe_access(oop internal_error); static void set_during_unsafe_access(oop internal_error); static void compute_offsets(); static void serialize_offsets(SerializeClosure* f) NOT_CDS_RETURN; }; // Use to declare fields that need to be injected into Java classes // for the JVM to use. The name_index and signature_index are // declared in vmSymbols. The may_be_java flag is used to declare // fields that might already exist in Java but should be injected if // they don't. Otherwise the field is unconditionally injected and // the JVM uses the injected one. This is to ensure that name // collisions don't occur. In general may_be_java should be false // unless there's a good reason. class InjectedField { public: const vmClassID klass_id; const vmSymbolID name_index; const vmSymbolID signature_index; const bool may_be_java; InstanceKlass* klass() const { return vmClasses::klass_at(klass_id); } Symbol* name() const { return lookup_symbol(name_index); } Symbol* signature() const { return lookup_symbol(signature_index); } int compute_offset(); // Find the Symbol for this index static Symbol* lookup_symbol(vmSymbolID symbol_index) { return Symbol::vm_symbol_at(symbol_index); } }; // Interface to hard-coded offset checking enum class InjectedFieldID : int; class JavaClasses : AllStatic { private: static InjectedField _injected_fields[]; static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; public: static int compute_injected_offset(InjectedFieldID id); static void compute_offsets(); static void check_offsets() PRODUCT_RETURN; static void serialize_offsets(SerializeClosure* soc) NOT_CDS_RETURN; static InjectedField* get_injected(Symbol* class_name, int* field_count); static bool is_supported_for_archiving(oop obj) NOT_CDS_JAVA_HEAP_RETURN_(false); static void compute_offset(int &dest_offset, InstanceKlass* ik, Symbol* name_symbol, Symbol* signature_symbol, bool is_static = false); static void compute_offset(int& dest_offset, InstanceKlass* ik, const char* name_string, Symbol* signature_symbol, bool is_static = false); }; #undef CHECK_INIT #endif // SHARE_CLASSFILE_JAVACLASSES_HPP