81 // be initialized at run time by RedefineClasses so dumping the right order
82 // is necessary.
83 void clear_vtable();
84 bool is_initialized();
85
86 // computes vtable length (in words) and the number of miranda methods
87 static void compute_vtable_size_and_num_mirandas(
88 int* vtable_length, int* num_new_mirandas,
89 GrowableArray<Method*>* all_mirandas, Klass* super,
90 Array<Method*>* methods, AccessFlags class_flags, Handle classloader,
91 Symbol* classname, Array<Klass*>* local_interfaces, TRAPS);
92
93 #if INCLUDE_JVMTI
94 // RedefineClasses() API support:
95 // If any entry of this vtable points to any of old_methods,
96 // replace it with the corresponding new_method.
97 // trace_name_printed is set to true if the current call has
98 // printed the klass name so that other routines in the adjust_*
99 // group don't print the klass name.
100 bool adjust_default_method(int vtable_index, Method* old_method, Method* new_method);
101 void adjust_method_entries(Method** old_methods, Method** new_methods,
102 int methods_length, bool * trace_name_printed);
103 bool check_no_old_or_obsolete_entries();
104 void dump_vtable();
105 #endif // INCLUDE_JVMTI
106
107 // Debugging code
108 void print() PRODUCT_RETURN;
109 void verify(outputStream* st, bool force = false);
110 static void print_statistics() PRODUCT_RETURN;
111
112 protected:
113 friend class vtableEntry;
114 private:
115 enum { VTABLE_TRANSITIVE_OVERRIDE_VERSION = 51 } ;
116 void copy_vtable_to(vtableEntry* start);
117 int initialize_from_super(KlassHandle super);
118 int index_of(Method* m, int len) const; // same as index_of, but search only up to len
119 void put_method_at(Method* m, int index);
120 static bool needs_new_vtable_entry(methodHandle m, Klass* super, Handle classloader, Symbol* classname, AccessFlags access_flags, TRAPS);
121
122 bool update_inherited_vtable(InstanceKlass* klass, methodHandle target_method, int super_vtable_len, int default_index, bool checkconstraints, TRAPS);
271 return &((itableOffsetEntry*)vtable_start())[i]; }
272
273 itableMethodEntry* method_entry(int i) { assert(0 <= i && i <= _size_method_table, "index out of bounds");
274 return &((itableMethodEntry*)method_start())[i]; }
275
276 int size_offset_table() { return _size_offset_table; }
277
278 // Initialization
279 void initialize_itable(bool checkconstraints, TRAPS);
280
281 // Updates
282 void initialize_with_method(Method* m);
283
284 #if INCLUDE_JVMTI
285 // RedefineClasses() API support:
286 // if any entry of this itable points to any of old_methods,
287 // replace it with the corresponding new_method.
288 // trace_name_printed is set to true if the current call has
289 // printed the klass name so that other routines in the adjust_*
290 // group don't print the klass name.
291 void adjust_method_entries(Method** old_methods, Method** new_methods,
292 int methods_length, bool * trace_name_printed);
293 bool check_no_old_or_obsolete_entries();
294 void dump_itable();
295 #endif // INCLUDE_JVMTI
296
297 // Setup of itable
298 static int assign_itable_indices_for_interface(Klass* klass);
299 static int method_count_for_interface(Klass* klass);
300 static int compute_itable_size(Array<Klass*>* transitive_interfaces);
301 static void setup_itable_offset_table(instanceKlassHandle klass);
302
303 // Resolving of method to index
304 static Method* method_for_itable_index(Klass* klass, int itable_index);
305
306 // Debugging/Statistics
307 static void print_statistics() PRODUCT_RETURN;
308 private:
309 intptr_t* vtable_start() const { return ((intptr_t*)_klass()) + _table_offset; }
310 intptr_t* method_start() const { return vtable_start() + _size_offset_table * itableOffsetEntry::size(); }
311
312 // Helper methods
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81 // be initialized at run time by RedefineClasses so dumping the right order
82 // is necessary.
83 void clear_vtable();
84 bool is_initialized();
85
86 // computes vtable length (in words) and the number of miranda methods
87 static void compute_vtable_size_and_num_mirandas(
88 int* vtable_length, int* num_new_mirandas,
89 GrowableArray<Method*>* all_mirandas, Klass* super,
90 Array<Method*>* methods, AccessFlags class_flags, Handle classloader,
91 Symbol* classname, Array<Klass*>* local_interfaces, TRAPS);
92
93 #if INCLUDE_JVMTI
94 // RedefineClasses() API support:
95 // If any entry of this vtable points to any of old_methods,
96 // replace it with the corresponding new_method.
97 // trace_name_printed is set to true if the current call has
98 // printed the klass name so that other routines in the adjust_*
99 // group don't print the klass name.
100 bool adjust_default_method(int vtable_index, Method* old_method, Method* new_method);
101 void adjust_method_entries(InstanceKlass* holder, bool * trace_name_printed);
102 bool check_no_old_or_obsolete_entries();
103 void dump_vtable();
104 #endif // INCLUDE_JVMTI
105
106 // Debugging code
107 void print() PRODUCT_RETURN;
108 void verify(outputStream* st, bool force = false);
109 static void print_statistics() PRODUCT_RETURN;
110
111 protected:
112 friend class vtableEntry;
113 private:
114 enum { VTABLE_TRANSITIVE_OVERRIDE_VERSION = 51 } ;
115 void copy_vtable_to(vtableEntry* start);
116 int initialize_from_super(KlassHandle super);
117 int index_of(Method* m, int len) const; // same as index_of, but search only up to len
118 void put_method_at(Method* m, int index);
119 static bool needs_new_vtable_entry(methodHandle m, Klass* super, Handle classloader, Symbol* classname, AccessFlags access_flags, TRAPS);
120
121 bool update_inherited_vtable(InstanceKlass* klass, methodHandle target_method, int super_vtable_len, int default_index, bool checkconstraints, TRAPS);
270 return &((itableOffsetEntry*)vtable_start())[i]; }
271
272 itableMethodEntry* method_entry(int i) { assert(0 <= i && i <= _size_method_table, "index out of bounds");
273 return &((itableMethodEntry*)method_start())[i]; }
274
275 int size_offset_table() { return _size_offset_table; }
276
277 // Initialization
278 void initialize_itable(bool checkconstraints, TRAPS);
279
280 // Updates
281 void initialize_with_method(Method* m);
282
283 #if INCLUDE_JVMTI
284 // RedefineClasses() API support:
285 // if any entry of this itable points to any of old_methods,
286 // replace it with the corresponding new_method.
287 // trace_name_printed is set to true if the current call has
288 // printed the klass name so that other routines in the adjust_*
289 // group don't print the klass name.
290 void adjust_method_entries(InstanceKlass* holder, bool * trace_name_printed);
291 bool check_no_old_or_obsolete_entries();
292 void dump_itable();
293 #endif // INCLUDE_JVMTI
294
295 // Setup of itable
296 static int assign_itable_indices_for_interface(Klass* klass);
297 static int method_count_for_interface(Klass* klass);
298 static int compute_itable_size(Array<Klass*>* transitive_interfaces);
299 static void setup_itable_offset_table(instanceKlassHandle klass);
300
301 // Resolving of method to index
302 static Method* method_for_itable_index(Klass* klass, int itable_index);
303
304 // Debugging/Statistics
305 static void print_statistics() PRODUCT_RETURN;
306 private:
307 intptr_t* vtable_start() const { return ((intptr_t*)_klass()) + _table_offset; }
308 intptr_t* method_start() const { return vtable_start() + _size_offset_table * itableOffsetEntry::size(); }
309
310 // Helper methods
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