| /* |
| * Copyright 1997-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| */ |
| |
| // Interface for manipulating the basic Java classes. |
| // |
| // All dependencies on layout of actual Java classes should be kept here. |
| // If the layout of any of the classes above changes the offsets must be adjusted. |
| // |
| // For most classes we hardwire the offsets for performance reasons. In certain |
| // cases (e.g. java.security.AccessControlContext) we compute the offsets at |
| // startup since the layout here differs between JDK1.2 and JDK1.3. |
| // |
| // Note that fields (static and non-static) are arranged with oops before non-oops |
| // on a per class basis. The offsets below have to reflect this ordering. |
| // |
| // When editing the layouts please update the check_offset verification code |
| // correspondingly. The names in the enums must be identical to the actual field |
| // names in order for the verification code to work. |
| |
| |
| // Interface to java.lang.String objects |
| |
| class java_lang_String : AllStatic { |
| private: |
| enum { |
| hc_value_offset = 0, |
| hc_offset_offset = 1, |
| hc_count_offset = 2, |
| hc_hash_offset = 3 |
| }; |
| |
| static int value_offset; |
| static int offset_offset; |
| static int count_offset; |
| static int hash_offset; |
| |
| static Handle basic_create(int length, bool tenured, TRAPS); |
| static Handle basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS); |
| |
| static void set_value( oop string, typeArrayOop buffer) { string->obj_field_put(value_offset, (oop)buffer); } |
| static void set_offset(oop string, int offset) { string->int_field_put(offset_offset, offset); } |
| static void set_count( oop string, int count) { string->int_field_put(count_offset, count); } |
| |
| public: |
| // Instance creation |
| static Handle create_from_unicode(jchar* unicode, int len, TRAPS); |
| static Handle create_tenured_from_unicode(jchar* unicode, int len, TRAPS); |
| static oop create_oop_from_unicode(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(symbolHandle symbol, TRAPS); |
| static Handle create_from_platform_dependent_str(const char* str, TRAPS); |
| static Handle char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS); |
| |
| static int value_offset_in_bytes() { return value_offset; } |
| static int count_offset_in_bytes() { return count_offset; } |
| static int offset_offset_in_bytes() { return offset_offset; } |
| static int hash_offset_in_bytes() { return hash_offset; } |
| |
| // Accessors |
| static typeArrayOop value(oop java_string) { |
| assert(is_instance(java_string), "must be java_string"); |
| return (typeArrayOop) java_string->obj_field(value_offset); |
| } |
| static int offset(oop java_string) { |
| assert(is_instance(java_string), "must be java_string"); |
| return java_string->int_field(offset_offset); |
| } |
| static int length(oop java_string) { |
| assert(is_instance(java_string), "must be java_string"); |
| return java_string->int_field(count_offset); |
| } |
| static int utf8_length(oop java_string); |
| |
| // String converters |
| static char* as_utf8_string(oop java_string); |
| static char* as_utf8_string(oop java_string, int start, int len); |
| static jchar* as_unicode_string(oop java_string, int& length); |
| |
| static bool equals(oop java_string, jchar* chars, int len); |
| |
| // Conversion between '.' and '/' formats |
| static Handle externalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '/', '.', THREAD); } |
| static Handle internalize_classname(Handle java_string, TRAPS) { return char_converter(java_string, '.', '/', THREAD); } |
| |
| // Conversion |
| static symbolHandle as_symbol(Handle java_string, TRAPS); |
| |
| // Testers |
| static bool is_instance(oop obj) { |
| return obj != NULL && obj->klass() == SystemDictionary::string_klass(); |
| } |
| |
| // Debugging |
| static void print(Handle java_string, outputStream* st); |
| friend class JavaClasses; |
| }; |
| |
| |
| // Interface to java.lang.Class objects |
| |
| class java_lang_Class : AllStatic { |
| friend class VMStructs; |
| private: |
| // The fake offsets are added by the class loader when java.lang.Class is loaded |
| |
| enum { |
| hc_klass_offset = 0, |
| hc_array_klass_offset = 1, |
| hc_resolved_constructor_offset = 2, |
| hc_number_of_fake_oop_fields = 3 |
| }; |
| |
| static int klass_offset; |
| static int resolved_constructor_offset; |
| static int array_klass_offset; |
| static int number_of_fake_oop_fields; |
| |
| static void compute_offsets(); |
| static bool offsets_computed; |
| static int classRedefinedCount_offset; |
| |
| public: |
| // Instance creation |
| static oop create_mirror(KlassHandle k, TRAPS); |
| static oop create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS); |
| // Conversion |
| static klassOop as_klassOop(oop java_class); |
| // Testing |
| static bool is_primitive(oop java_class); |
| static BasicType primitive_type(oop java_class); |
| static oop primitive_mirror(BasicType t); |
| // JVM_NewInstance support |
| static methodOop resolved_constructor(oop java_class); |
| static void set_resolved_constructor(oop java_class, methodOop constructor); |
| // JVM_NewArray support |
| static klassOop array_klass(oop java_class); |
| static void set_array_klass(oop java_class, klassOop klass); |
| // compiler support for class operations |
| static int klass_offset_in_bytes() { return klass_offset; } |
| static int resolved_constructor_offset_in_bytes() { return resolved_constructor_offset; } |
| static int array_klass_offset_in_bytes() { return array_klass_offset; } |
| // Support for classRedefinedCount field |
| static int classRedefinedCount(oop the_class_mirror); |
| static void set_classRedefinedCount(oop the_class_mirror, int value); |
| // Debugging |
| friend class JavaClasses; |
| friend class instanceKlass; // verification code accesses offsets |
| friend class ClassFileParser; // access to number_of_fake_fields |
| }; |
| |
| // Interface to java.lang.Thread objects |
| |
| class java_lang_Thread : AllStatic { |
| 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 _name_offset; |
| static int _group_offset; |
| static int _contextClassLoader_offset; |
| static int _inheritedAccessControlContext_offset; |
| static int _priority_offset; |
| static int _eetop_offset; |
| static int _daemon_offset; |
| static int _stillborn_offset; |
| static int _stackSize_offset; |
| static int _tid_offset; |
| static int _thread_status_offset; |
| static int _park_blocker_offset; |
| static int _park_event_offset ; |
| |
| static void compute_offsets(); |
| |
| public: |
| // Instance creation |
| static oop create(); |
| // Returns the JavaThread associated with the thread obj |
| static JavaThread* thread(oop java_thread); |
| // Set JavaThread for instance |
| static void set_thread(oop java_thread, JavaThread* thread); |
| // Name |
| static typeArrayOop name(oop java_thread); |
| static void set_name(oop java_thread, typeArrayOop 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); |
| // Stillborn |
| static bool is_stillborn(oop java_thread); |
| static void set_stillborn(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); |
| // Control context |
| static oop inherited_access_control_context(oop java_thread); |
| // Stack size hint |
| static jlong stackSize(oop java_thread); |
| // Thread ID |
| static jlong thread_id(oop java_thread); |
| |
| // Blocker object responsible for thread parking |
| static oop park_blocker(oop java_thread); |
| |
| // Pointer to type-stable park handler, encoded as jlong. |
| // Should be set when apparently null |
| // For details, see unsafe.cpp Unsafe_Unpark |
| static jlong park_event(oop java_thread); |
| static bool set_park_event(oop java_thread, jlong ptr); |
| |
| // Java Thread Status for JVMTI and M&M use. |
| // This thread status info is saved in threadStatus field of |
| // java.lang.Thread java class. |
| enum ThreadStatus { |
| NEW = 0, |
| RUNNABLE = JVMTI_THREAD_STATE_ALIVE + // runnable / running |
| JVMTI_THREAD_STATE_RUNNABLE, |
| SLEEPING = JVMTI_THREAD_STATE_ALIVE + // Thread.sleep() |
| JVMTI_THREAD_STATE_WAITING + |
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
| JVMTI_THREAD_STATE_SLEEPING, |
| IN_OBJECT_WAIT = JVMTI_THREAD_STATE_ALIVE + // Object.wait() |
| JVMTI_THREAD_STATE_WAITING + |
| JVMTI_THREAD_STATE_WAITING_INDEFINITELY + |
| JVMTI_THREAD_STATE_IN_OBJECT_WAIT, |
| IN_OBJECT_WAIT_TIMED = JVMTI_THREAD_STATE_ALIVE + // Object.wait(long) |
| JVMTI_THREAD_STATE_WAITING + |
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
| JVMTI_THREAD_STATE_IN_OBJECT_WAIT, |
| PARKED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park() |
| JVMTI_THREAD_STATE_WAITING + |
| JVMTI_THREAD_STATE_WAITING_INDEFINITELY + |
| JVMTI_THREAD_STATE_PARKED, |
| PARKED_TIMED = JVMTI_THREAD_STATE_ALIVE + // LockSupport.park(long) |
| JVMTI_THREAD_STATE_WAITING + |
| JVMTI_THREAD_STATE_WAITING_WITH_TIMEOUT + |
| JVMTI_THREAD_STATE_PARKED, |
| BLOCKED_ON_MONITOR_ENTER = JVMTI_THREAD_STATE_ALIVE + // (re-)entering a synchronization block |
| JVMTI_THREAD_STATE_BLOCKED_ON_MONITOR_ENTER, |
| TERMINATED = JVMTI_THREAD_STATE_TERMINATED |
| }; |
| // Write thread status info to threadStatus field of java.lang.Thread. |
| static void set_thread_status(oop java_thread_oop, ThreadStatus status); |
| // Read thread status info from threadStatus field of java.lang.Thread. |
| static ThreadStatus get_thread_status(oop java_thread_oop); |
| |
| static const char* thread_status_name(oop java_thread_oop); |
| |
| // Debugging |
| 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 _threads_offset; |
| static int _groups_offset; |
| static int _maxPriority_offset; |
| static int _destroyed_offset; |
| static int _daemon_offset; |
| static int _vmAllowSuspension_offset; |
| static int _nthreads_offset; |
| static int _ngroups_offset; |
| |
| static void compute_offsets(); |
| |
| public: |
| // parent ThreadGroup |
| static oop parent(oop java_thread_group); |
| // name |
| static typeArrayOop name(oop java_thread_group); |
| // ("name as oop" accessor is not necessary) |
| // Number of threads in group |
| static int nthreads(oop java_thread_group); |
| // threads |
| static objArrayOop threads(oop java_thread_group); |
| // Number of threads in group |
| static int ngroups(oop java_thread_group); |
| // groups |
| static objArrayOop groups(oop java_thread_group); |
| // maxPriority in group |
| static ThreadPriority maxPriority(oop java_thread_group); |
| // Destroyed |
| static bool is_destroyed(oop java_thread_group); |
| // Daemon |
| static bool is_daemon(oop java_thread_group); |
| // vmAllowSuspension |
| static bool is_vmAllowSuspension(oop java_thread_group); |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| |
| // Interface to java.lang.Throwable objects |
| |
| class java_lang_Throwable: AllStatic { |
| friend class BacktraceBuilder; |
| |
| private: |
| // Offsets |
| enum { |
| hc_backtrace_offset = 0, |
| hc_detailMessage_offset = 1, |
| hc_cause_offset = 2, // New since 1.4 |
| hc_stackTrace_offset = 3 // New since 1.4 |
| }; |
| // Trace constants |
| enum { |
| trace_methods_offset = 0, |
| trace_bcis_offset = 1, |
| trace_next_offset = 2, |
| trace_size = 3, |
| trace_chunk_size = 32 |
| }; |
| |
| static int backtrace_offset; |
| static int detailMessage_offset; |
| static int cause_offset; |
| static int stackTrace_offset; |
| |
| // Printing |
| static char* print_stack_element_to_buffer(methodOop method, int bci); |
| static void print_to_stream(Handle stream, const char* str); |
| // StackTrace (programmatic access, new since 1.4) |
| static void clear_stacktrace(oop throwable); |
| // No stack trace available |
| static const char* no_stack_trace_message(); |
| |
| public: |
| // Backtrace |
| static oop backtrace(oop throwable); |
| static void set_backtrace(oop throwable, oop value); |
| // Needed by JVMTI to filter out this internal field. |
| static int get_backtrace_offset() { return backtrace_offset;} |
| static int get_detailMessage_offset() { return detailMessage_offset;} |
| // Message |
| static oop message(oop throwable); |
| static oop message(Handle throwable); |
| static void set_message(oop throwable, oop value); |
| // Print stack trace stored in exception by call-back to Java |
| // Note: this is no longer used in Merlin, but we still suppport |
| // it for compatibility. |
| static void print_stack_trace(oop throwable, oop print_stream); |
| static void print_stack_element(Handle stream, methodOop method, int bci); |
| static void print_stack_element(outputStream *st, methodOop method, int bci); |
| static void print_stack_usage(Handle stream); |
| |
| // 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, TRAPS); |
| static void fill_in_stack_trace(Handle throwable); |
| // Programmatic access to stack trace |
| static oop get_stack_trace_element(oop throwable, int index, TRAPS); |
| static int get_stack_trace_depth(oop throwable, TRAPS); |
| // Printing |
| static void print(oop throwable, outputStream* st); |
| static void print(Handle throwable, outputStream* st); |
| static void print_stack_trace(oop throwable, outputStream* st); |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| // 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: |
| // 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: |
| // Allocation |
| static Handle create(TRAPS); |
| |
| // Accessors |
| static oop clazz(oop reflect); |
| static void set_clazz(oop reflect, oop value); |
| |
| static oop name(oop method); |
| 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 oop exception_types(oop method); |
| static void set_exception_types(oop method, oop value); |
| |
| static int slot(oop reflect); |
| static void set_slot(oop reflect, int value); |
| |
| static int modifiers(oop method); |
| static void set_modifiers(oop method, int value); |
| |
| static bool has_signature_field(); |
| static oop signature(oop method); |
| static void set_signature(oop method, oop value); |
| |
| static bool has_annotations_field(); |
| static oop annotations(oop method); |
| static void set_annotations(oop method, oop value); |
| |
| static bool has_parameter_annotations_field(); |
| static oop parameter_annotations(oop method); |
| static void set_parameter_annotations(oop method, oop value); |
| |
| static bool has_annotation_default_field(); |
| static oop annotation_default(oop method); |
| 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: |
| // 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 oop exception_types(oop constructor); |
| static void set_exception_types(oop constructor, oop value); |
| |
| static int slot(oop reflect); |
| static void set_slot(oop reflect, int value); |
| |
| static int modifiers(oop constructor); |
| static void set_modifiers(oop constructor, int value); |
| |
| static bool has_signature_field(); |
| static oop signature(oop constructor); |
| static void set_signature(oop constructor, oop value); |
| |
| static bool has_annotations_field(); |
| static oop annotations(oop constructor); |
| static void set_annotations(oop constructor, oop value); |
| |
| static bool has_parameter_annotations_field(); |
| static oop parameter_annotations(oop method); |
| 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 signature_offset; |
| static int annotations_offset; |
| |
| static void compute_offsets(); |
| |
| public: |
| // 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 bool has_signature_field(); |
| static oop signature(oop constructor); |
| static void set_signature(oop constructor, oop value); |
| |
| static bool has_annotations_field(); |
| static oop annotations(oop constructor); |
| static void set_annotations(oop constructor, oop value); |
| |
| static bool has_parameter_annotations_field(); |
| static oop parameter_annotations(oop method); |
| static void set_parameter_annotations(oop method, oop value); |
| |
| static bool has_annotation_default_field(); |
| static oop annotation_default(oop method); |
| static void set_annotation_default(oop method, oop value); |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| // Interface to sun.reflect.ConstantPool objects |
| class sun_reflect_ConstantPool { |
| private: |
| // Note that to reduce dependencies on the JDK we compute these |
| // offsets at run-time. |
| static int _cp_oop_offset; |
| |
| static void compute_offsets(); |
| |
| public: |
| // Allocation |
| static Handle create(TRAPS); |
| |
| // Accessors |
| static oop cp_oop(oop reflect); |
| static void set_cp_oop(oop reflect, oop value); |
| static int cp_oop_offset() { |
| return _cp_oop_offset; |
| } |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| // Interface to sun.reflect.UnsafeStaticFieldAccessorImpl objects |
| class sun_reflect_UnsafeStaticFieldAccessorImpl { |
| private: |
| static int _base_offset; |
| static void compute_offsets(); |
| |
| public: |
| static int base_offset() { |
| return _base_offset; |
| } |
| |
| // 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: |
| enum { |
| hc_value_offset = 0 |
| }; |
| static int value_offset; |
| |
| static oop initialize_and_allocate(klassOop klass, 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 int value_offset_in_bytes() { return value_offset; } |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| |
| // Interface to java.lang.ref.Reference objects |
| |
| class java_lang_ref_Reference: AllStatic { |
| public: |
| enum { |
| hc_referent_offset = 0, |
| hc_queue_offset = 1, |
| hc_next_offset = 2, |
| hc_discovered_offset = 3 // Is not last, see SoftRefs. |
| }; |
| enum { |
| hc_static_lock_offset = 0, |
| hc_static_pending_offset = 1 |
| }; |
| |
| static int referent_offset; |
| static int queue_offset; |
| static int next_offset; |
| static int discovered_offset; |
| static int static_lock_offset; |
| static int static_pending_offset; |
| static int number_of_fake_oop_fields; |
| |
| // Accessors |
| static oop referent(oop ref) { return *referent_addr(ref); } |
| static void set_referent(oop ref, oop value); |
| static oop* referent_addr(oop ref); |
| |
| static oop next(oop ref) { return *next_addr(ref); } |
| static void set_next(oop ref, oop value); |
| static oop* next_addr(oop ref); |
| |
| static oop discovered(oop ref) { return *discovered_addr(ref); } |
| static void set_discovered(oop ref, oop value); |
| static oop* discovered_addr(oop ref); |
| |
| // Accessors for statics |
| static oop pending_list_lock() { return *pending_list_lock_addr(); } |
| static oop pending_list() { return *pending_list_addr(); } |
| |
| static oop* pending_list_lock_addr(); |
| static oop* pending_list_addr(); |
| }; |
| |
| |
| // Interface to java.lang.ref.SoftReference objects |
| |
| class java_lang_ref_SoftReference: public java_lang_ref_Reference { |
| public: |
| enum { |
| // The timestamp is a long field and may need to be adjusted for alignment. |
| hc_timestamp_offset = align_object_offset_(hc_discovered_offset + 1) |
| }; |
| enum { |
| hc_static_clock_offset = 0 |
| }; |
| |
| static int timestamp_offset; |
| static int static_clock_offset; |
| |
| // Accessors |
| static jlong timestamp(oop ref); |
| |
| // Accessors for statics |
| static jlong clock(); |
| static void set_clock(jlong value); |
| }; |
| |
| |
| // Interface to java.security.AccessControlContext objects |
| |
| class java_security_AccessControlContext: AllStatic { |
| 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 _context_offset; |
| static int _privilegedContext_offset; |
| static int _isPrivileged_offset; |
| |
| static void compute_offsets(); |
| public: |
| static oop create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS); |
| |
| // Debugging/initialization |
| friend class JavaClasses; |
| }; |
| |
| |
| // Interface to java.lang.ClassLoader objects |
| |
| class java_lang_ClassLoader : AllStatic { |
| private: |
| enum { |
| hc_parent_offset = 0 |
| }; |
| |
| static int parent_offset; |
| |
| public: |
| static oop parent(oop loader); |
| |
| static bool is_trusted_loader(oop loader); |
| |
| // Fix for 4474172 |
| static oop non_reflection_class_loader(oop loader); |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| // Interface to java.lang.System objects |
| |
| class java_lang_System : AllStatic { |
| private: |
| enum { |
| hc_static_in_offset = 0, |
| hc_static_out_offset = 1, |
| hc_static_err_offset = 2 |
| }; |
| |
| static int offset_of_static_fields; |
| static int static_in_offset; |
| static int static_out_offset; |
| static int static_err_offset; |
| |
| static void compute_offsets(); |
| |
| public: |
| static int in_offset_in_bytes(); |
| static int out_offset_in_bytes(); |
| static int err_offset_in_bytes(); |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| // Interface to java.lang.StackTraceElement objects |
| |
| class java_lang_StackTraceElement: AllStatic { |
| private: |
| enum { |
| hc_declaringClass_offset = 0, |
| hc_methodName_offset = 1, |
| hc_fileName_offset = 2, |
| hc_lineNumber_offset = 3 |
| }; |
| |
| static int declaringClass_offset; |
| static int methodName_offset; |
| static int fileName_offset; |
| static int lineNumber_offset; |
| |
| public: |
| // Setters |
| 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); |
| |
| // Create an instance of StackTraceElement |
| static oop create(methodHandle m, int bci, TRAPS); |
| |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| // Interface to java.lang.AssertionStatusDirectives objects |
| |
| class java_lang_AssertionStatusDirectives: AllStatic { |
| private: |
| enum { |
| hc_classes_offset, |
| hc_classEnabled_offset, |
| hc_packages_offset, |
| hc_packageEnabled_offset, |
| hc_deflt_offset |
| }; |
| |
| 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); |
| // Debugging |
| friend class JavaClasses; |
| }; |
| |
| |
| class java_nio_Buffer: AllStatic { |
| private: |
| static int _limit_offset; |
| |
| public: |
| static int limit_offset(); |
| static void compute_offsets(); |
| }; |
| |
| class sun_misc_AtomicLongCSImpl: AllStatic { |
| private: |
| static int _value_offset; |
| |
| public: |
| static int value_offset(); |
| static void compute_offsets(); |
| }; |
| |
| class java_util_concurrent_locks_AbstractOwnableSynchronizer : AllStatic { |
| private: |
| static int _owner_offset; |
| public: |
| static void initialize(TRAPS); |
| static oop get_owner_threadObj(oop obj); |
| }; |
| |
| // Interface to hard-coded offset checking |
| |
| class JavaClasses : AllStatic { |
| private: |
| static bool check_offset(const char *klass_name, int offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| static bool check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) PRODUCT_RETURN0; |
| public: |
| static void compute_hard_coded_offsets(); |
| static void compute_offsets(); |
| static void check_offsets() PRODUCT_RETURN; |
| }; |