Mercurial > hg > truffle
diff src/share/vm/classfile/javaClasses.hpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
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children | 90f5ddc7297b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/share/vm/classfile/javaClasses.hpp Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,904 @@ +/* + * 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; +};