Mercurial > hg > graal-compiler
comparison src/share/vm/oops/instanceKlass.hpp @ 6948:e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 12 Nov 2012 23:14:12 +0100 |
parents | dddcdb7ae209 4735d2c84362 |
children | 2cb439954abf |
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6711:ae13cc658b80 | 6948:e522a00b91aa |
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23 */ | 23 */ |
24 | 24 |
25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_HPP | 25 #ifndef SHARE_VM_OOPS_INSTANCEKLASS_HPP |
26 #define SHARE_VM_OOPS_INSTANCEKLASS_HPP | 26 #define SHARE_VM_OOPS_INSTANCEKLASS_HPP |
27 | 27 |
28 #include "oops/constMethodOop.hpp" | 28 #include "classfile/classLoaderData.hpp" |
29 #include "oops/constantPoolOop.hpp" | 29 #include "oops/annotations.hpp" |
30 #include "oops/constMethod.hpp" | |
30 #include "oops/fieldInfo.hpp" | 31 #include "oops/fieldInfo.hpp" |
31 #include "oops/instanceOop.hpp" | 32 #include "oops/instanceOop.hpp" |
32 #include "oops/klassOop.hpp" | |
33 #include "oops/klassVtable.hpp" | 33 #include "oops/klassVtable.hpp" |
34 #include "oops/objArrayOop.hpp" | |
35 #include "runtime/handles.hpp" | 34 #include "runtime/handles.hpp" |
36 #include "runtime/os.hpp" | 35 #include "runtime/os.hpp" |
37 #include "utilities/accessFlags.hpp" | 36 #include "utilities/accessFlags.hpp" |
38 #include "utilities/bitMap.inline.hpp" | 37 #include "utilities/bitMap.inline.hpp" |
39 | 38 |
40 // An instanceKlass is the VM level representation of a Java class. | 39 // An InstanceKlass is the VM level representation of a Java class. |
41 // It contains all information needed for at class at execution runtime. | 40 // It contains all information needed for at class at execution runtime. |
42 | 41 |
43 // instanceKlass layout: | 42 // InstanceKlass layout: |
44 // [header ] klassOop | |
45 // [klass pointer ] klassOop | |
46 // [C++ vtbl pointer ] Klass | 43 // [C++ vtbl pointer ] Klass |
47 // [subtype cache ] Klass | 44 // [subtype cache ] Klass |
48 // [instance size ] Klass | 45 // [instance size ] Klass |
49 // [java mirror ] Klass | 46 // [java mirror ] Klass |
50 // [super ] Klass | 47 // [super ] Klass |
96 class FieldClosure: public StackObj { | 93 class FieldClosure: public StackObj { |
97 public: | 94 public: |
98 virtual void do_field(fieldDescriptor* fd) = 0; | 95 virtual void do_field(fieldDescriptor* fd) = 0; |
99 }; | 96 }; |
100 | 97 |
101 //#ifndef PRODUCT | 98 #ifndef PRODUCT |
102 // Print fields. | 99 // Print fields. |
103 // If "obj" argument to constructor is NULL, prints static fields, otherwise prints non-static fields. | 100 // If "obj" argument to constructor is NULL, prints static fields, otherwise prints non-static fields. |
104 class FieldPrinter: public FieldClosure { | 101 class FieldPrinter: public FieldClosure { |
105 oop _obj; | 102 oop _obj; |
106 outputStream* _st; | 103 outputStream* _st; |
107 public: | 104 public: |
108 FieldPrinter(outputStream* st, oop obj = NULL) : _obj(obj), _st(st) {} | 105 FieldPrinter(outputStream* st, oop obj = NULL) : _obj(obj), _st(st) {} |
109 void do_field(fieldDescriptor* fd); | 106 void do_field(fieldDescriptor* fd); |
110 }; | 107 }; |
111 //#endif // !PRODUCT | 108 #endif // !PRODUCT |
112 | 109 |
113 // ValueObjs embedded in klass. Describes where oops are located in instances of | 110 // ValueObjs embedded in klass. Describes where oops are located in instances of |
114 // this klass. | 111 // this klass. |
115 class OopMapBlock VALUE_OBJ_CLASS_SPEC { | 112 class OopMapBlock VALUE_OBJ_CLASS_SPEC { |
116 public: | 113 public: |
131 private: | 128 private: |
132 int _offset; | 129 int _offset; |
133 uint _count; | 130 uint _count; |
134 }; | 131 }; |
135 | 132 |
136 class instanceKlass: public Klass { | 133 class InstanceKlass: public Klass { |
137 friend class VMStructs; | 134 friend class VMStructs; |
135 friend class ClassFileParser; | |
136 | |
137 protected: | |
138 // Constructor | |
139 InstanceKlass(int vtable_len, | |
140 int itable_len, | |
141 int static_field_size, | |
142 int nonstatic_oop_map_size, | |
143 ReferenceType rt, | |
144 AccessFlags access_flags, | |
145 bool is_anonymous); | |
138 public: | 146 public: |
147 static Klass* allocate_instance_klass(ClassLoaderData* loader_data, | |
148 int vtable_len, | |
149 int itable_len, | |
150 int static_field_size, | |
151 int nonstatic_oop_map_size, | |
152 ReferenceType rt, | |
153 AccessFlags access_flags, | |
154 Symbol* name, | |
155 Klass* super_klass, | |
156 KlassHandle host_klass, | |
157 TRAPS); | |
158 | |
159 InstanceKlass() { assert(DumpSharedSpaces || UseSharedSpaces, "only for CDS"); } | |
160 | |
139 // See "The Java Virtual Machine Specification" section 2.16.2-5 for a detailed description | 161 // See "The Java Virtual Machine Specification" section 2.16.2-5 for a detailed description |
140 // of the class loading & initialization procedure, and the use of the states. | 162 // of the class loading & initialization procedure, and the use of the states. |
141 enum ClassState { | 163 enum ClassState { |
142 unparsable_by_gc = 0, // object is not yet parsable by gc. Value of _init_state at object allocation. | |
143 allocated, // allocated (but not yet linked) | 164 allocated, // allocated (but not yet linked) |
144 loaded, // loaded and inserted in class hierarchy (but not linked yet) | 165 loaded, // loaded and inserted in class hierarchy (but not linked yet) |
145 linked, // successfully linked/verified (but not initialized yet) | 166 linked, // successfully linked/verified (but not initialized yet) |
146 being_initialized, // currently running class initializer | 167 being_initialized, // currently running class initializer |
147 fully_initialized, // initialized (successfull final state) | 168 fully_initialized, // initialized (successfull final state) |
148 initialization_error // error happened during initialization | 169 initialization_error // error happened during initialization |
149 }; | 170 }; |
150 | 171 |
151 public: | |
152 oop* oop_block_beg() const { return adr_array_klasses(); } | |
153 oop* oop_block_end() const { return adr_methods_default_annotations() + 1; } | |
154 | |
155 protected: | 172 protected: |
156 // | |
157 // The oop block. See comment in klass.hpp before making changes. | |
158 // | |
159 | |
160 // Array classes holding elements of this class. | |
161 klassOop _array_klasses; | |
162 // Method array. | |
163 objArrayOop _methods; | |
164 // Int array containing the original order of method in the class file (for | |
165 // JVMTI). | |
166 typeArrayOop _method_ordering; | |
167 // Interface (klassOops) this class declares locally to implement. | |
168 objArrayOop _local_interfaces; | |
169 // Interface (klassOops) this class implements transitively. | |
170 objArrayOop _transitive_interfaces; | |
171 // Instance and static variable information, starts with 6-tuples of shorts | |
172 // [access, name index, sig index, initval index, low_offset, high_offset] | |
173 // for all fields, followed by the generic signature data at the end of | |
174 // the array. Only fields with generic signature attributes have the generic | |
175 // signature data set in the array. The fields array looks like following: | |
176 // | |
177 // f1: [access, name index, sig index, initial value index, low_offset, high_offset] | |
178 // f2: [access, name index, sig index, initial value index, low_offset, high_offset] | |
179 // ... | |
180 // fn: [access, name index, sig index, initial value index, low_offset, high_offset] | |
181 // [generic signature index] | |
182 // [generic signature index] | |
183 // ... | |
184 typeArrayOop _fields; | |
185 // Constant pool for this class. | |
186 constantPoolOop _constants; | |
187 // Class loader used to load this class, NULL if VM loader used. | |
188 oop _class_loader; | |
189 // Protection domain. | 173 // Protection domain. |
190 oop _protection_domain; | 174 oop _protection_domain; |
191 // Class signers. | 175 // Class signers. |
192 objArrayOop _signers; | 176 objArrayOop _signers; |
177 // Initialization lock. Must be one per class and it has to be a VM internal | |
178 // object so java code cannot lock it (like the mirror) | |
179 // It has to be an object not a Mutex because it's held through java calls. | |
180 volatile oop _init_lock; | |
181 | |
182 // Annotations for this class | |
183 Annotations* _annotations; | |
184 // Array classes holding elements of this class. | |
185 Klass* _array_klasses; | |
186 // Constant pool for this class. | |
187 ConstantPool* _constants; | |
193 // The InnerClasses attribute and EnclosingMethod attribute. The | 188 // The InnerClasses attribute and EnclosingMethod attribute. The |
194 // _inner_classes is an array of shorts. If the class has InnerClasses | 189 // _inner_classes is an array of shorts. If the class has InnerClasses |
195 // attribute, then the _inner_classes array begins with 4-tuples of shorts | 190 // attribute, then the _inner_classes array begins with 4-tuples of shorts |
196 // [inner_class_info_index, outer_class_info_index, | 191 // [inner_class_info_index, outer_class_info_index, |
197 // inner_name_index, inner_class_access_flags] for the InnerClasses | 192 // inner_name_index, inner_class_access_flags] for the InnerClasses |
199 // last two shorts [class_index, method_index] of the array. If only | 194 // last two shorts [class_index, method_index] of the array. If only |
200 // the InnerClasses attribute exists, the _inner_classes array length is | 195 // the InnerClasses attribute exists, the _inner_classes array length is |
201 // number_of_inner_classes * 4. If the class has both InnerClasses | 196 // number_of_inner_classes * 4. If the class has both InnerClasses |
202 // and EnclosingMethod attributes the _inner_classes array length is | 197 // and EnclosingMethod attributes the _inner_classes array length is |
203 // number_of_inner_classes * 4 + enclosing_method_attribute_size. | 198 // number_of_inner_classes * 4 + enclosing_method_attribute_size. |
204 typeArrayOop _inner_classes; | 199 Array<jushort>* _inner_classes; |
205 // Annotations for this class, or null if none. | |
206 typeArrayOop _class_annotations; | |
207 // Annotation objects (byte arrays) for fields, or null if no annotations. | |
208 // Indices correspond to entries (not indices) in fields array. | |
209 objArrayOop _fields_annotations; | |
210 // Annotation objects (byte arrays) for methods, or null if no annotations. | |
211 // Index is the idnum, which is initially the same as the methods array index. | |
212 objArrayOop _methods_annotations; | |
213 // Annotation objects (byte arrays) for methods' parameters, or null if no | |
214 // such annotations. | |
215 // Index is the idnum, which is initially the same as the methods array index. | |
216 objArrayOop _methods_parameter_annotations; | |
217 // Annotation objects (byte arrays) for methods' default values, or null if no | |
218 // such annotations. | |
219 // Index is the idnum, which is initially the same as the methods array index. | |
220 objArrayOop _methods_default_annotations; | |
221 | |
222 // | |
223 // End of the oop block. | |
224 // | |
225 | 200 |
226 // Name of source file containing this klass, NULL if not specified. | 201 // Name of source file containing this klass, NULL if not specified. |
227 Symbol* _source_file_name; | 202 Symbol* _source_file_name; |
228 // the source debug extension for this klass, NULL if not specified. | 203 // the source debug extension for this klass, NULL if not specified. |
229 // Specified as UTF-8 string without terminating zero byte in the classfile, | 204 // Specified as UTF-8 string without terminating zero byte in the classfile, |
260 JNIid* _jni_ids; // First JNI identifier for static fields in this class | 235 JNIid* _jni_ids; // First JNI identifier for static fields in this class |
261 jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none | 236 jmethodID* _methods_jmethod_ids; // jmethodIDs corresponding to method_idnum, or NULL if none |
262 int* _methods_cached_itable_indices; // itable_index cache for JNI invoke corresponding to methods idnum, or NULL | 237 int* _methods_cached_itable_indices; // itable_index cache for JNI invoke corresponding to methods idnum, or NULL |
263 nmethodBucket* _dependencies; // list of dependent nmethods | 238 nmethodBucket* _dependencies; // list of dependent nmethods |
264 nmethod* _osr_nmethods_head; // Head of list of on-stack replacement nmethods for this class | 239 nmethod* _osr_nmethods_head; // Head of list of on-stack replacement nmethods for this class |
265 BreakpointInfo* _breakpoints; // bpt lists, managed by methodOop | 240 BreakpointInfo* _breakpoints; // bpt lists, managed by Method* |
266 // Array of interesting part(s) of the previous version(s) of this | 241 // Array of interesting part(s) of the previous version(s) of this |
267 // instanceKlass. See PreviousVersionWalker below. | 242 // InstanceKlass. See PreviousVersionWalker below. |
268 GrowableArray<PreviousVersionNode *>* _previous_versions; | 243 GrowableArray<PreviousVersionNode *>* _previous_versions; |
269 // JVMTI fields can be moved to their own structure - see 6315920 | 244 // JVMTI fields can be moved to their own structure - see 6315920 |
270 unsigned char * _cached_class_file_bytes; // JVMTI: cached class file, before retransformable agent modified it in CFLH | 245 unsigned char * _cached_class_file_bytes; // JVMTI: cached class file, before retransformable agent modified it in CFLH |
271 jint _cached_class_file_len; // JVMTI: length of above | 246 jint _cached_class_file_len; // JVMTI: length of above |
272 JvmtiCachedClassFieldMap* _jvmti_cached_class_field_map; // JVMTI: used during heap iteration | 247 JvmtiCachedClassFieldMap* _jvmti_cached_class_field_map; // JVMTI: used during heap iteration |
248 | |
249 // true if class, superclass, or implemented interfaces have default methods | |
250 bool _has_default_methods; | |
251 | |
273 volatile u2 _idnum_allocated_count; // JNI/JVMTI: increments with the addition of methods, old ids don't change | 252 volatile u2 _idnum_allocated_count; // JNI/JVMTI: increments with the addition of methods, old ids don't change |
253 // Method array. | |
254 Array<Method*>* _methods; | |
255 // Interface (Klass*s) this class declares locally to implement. | |
256 Array<Klass*>* _local_interfaces; | |
257 // Interface (Klass*s) this class implements transitively. | |
258 Array<Klass*>* _transitive_interfaces; | |
259 // Int array containing the original order of method in the class file (for JVMTI). | |
260 Array<int>* _method_ordering; | |
261 // Instance and static variable information, starts with 6-tuples of shorts | |
262 // [access, name index, sig index, initval index, low_offset, high_offset] | |
263 // for all fields, followed by the generic signature data at the end of | |
264 // the array. Only fields with generic signature attributes have the generic | |
265 // signature data set in the array. The fields array looks like following: | |
266 // | |
267 // f1: [access, name index, sig index, initial value index, low_offset, high_offset] | |
268 // f2: [access, name index, sig index, initial value index, low_offset, high_offset] | |
269 // ... | |
270 // fn: [access, name index, sig index, initial value index, low_offset, high_offset] | |
271 // [generic signature index] | |
272 // [generic signature index] | |
273 // ... | |
274 Array<u2>* _fields; | |
274 | 275 |
275 // Class states are defined as ClassState (see above). | 276 // Class states are defined as ClassState (see above). |
276 // Place the _init_state here to utilize the unused 2-byte after | 277 // Place the _init_state here to utilize the unused 2-byte after |
277 // _idnum_allocated_count. | 278 // _idnum_allocated_count. |
278 u1 _init_state; // state of class | 279 u1 _init_state; // state of class |
286 // embedded implementor of this interface follows here | 287 // embedded implementor of this interface follows here |
287 // The embedded implementor only exists if the current klass is an | 288 // The embedded implementor only exists if the current klass is an |
288 // iterface. The possible values of the implementor fall into following | 289 // iterface. The possible values of the implementor fall into following |
289 // three cases: | 290 // three cases: |
290 // NULL: no implementor. | 291 // NULL: no implementor. |
291 // A klassOop that's not itself: one implementor. | 292 // A Klass* that's not itself: one implementor. |
292 // Itsef: more than one implementors. | 293 // Itsef: more than one implementors. |
293 // embedded host klass follows here | 294 // embedded host klass follows here |
294 // The embedded host klass only exists in an anonymous class for | 295 // The embedded host klass only exists in an anonymous class for |
295 // dynamic language support (JSR 292 enabled). The host class grants | 296 // dynamic language support (JSR 292 enabled). The host class grants |
296 // its access privileges to this class also. The host class is either | 297 // its access privileges to this class also. The host class is either |
297 // named, or a previously loaded anonymous class. A non-anonymous class | 298 // named, or a previously loaded anonymous class. A non-anonymous class |
298 // or an anonymous class loaded through normal classloading does not | 299 // or an anonymous class loaded through normal classloading does not |
299 // have this embedded field. | 300 // have this embedded field. |
300 // | 301 // |
301 | 302 |
302 friend class instanceKlassKlass; | |
303 friend class SystemDictionary; | 303 friend class SystemDictionary; |
304 | 304 |
305 public: | 305 public: |
306 bool has_nonstatic_fields() const { | 306 bool has_nonstatic_fields() const { |
307 return (_misc_flags & _misc_has_nonstatic_fields) != 0; | 307 return (_misc_flags & _misc_has_nonstatic_fields) != 0; |
331 // Java itable | 331 // Java itable |
332 int itable_length() const { return _itable_len; } | 332 int itable_length() const { return _itable_len; } |
333 void set_itable_length(int len) { _itable_len = len; } | 333 void set_itable_length(int len) { _itable_len = len; } |
334 | 334 |
335 // array klasses | 335 // array klasses |
336 klassOop array_klasses() const { return _array_klasses; } | 336 Klass* array_klasses() const { return _array_klasses; } |
337 void set_array_klasses(klassOop k) { oop_store_without_check((oop*) &_array_klasses, (oop) k); } | 337 void set_array_klasses(Klass* k) { _array_klasses = k; } |
338 | 338 |
339 // methods | 339 // methods |
340 objArrayOop methods() const { return _methods; } | 340 Array<Method*>* methods() const { return _methods; } |
341 void set_methods(objArrayOop a) { oop_store_without_check((oop*) &_methods, (oop) a); } | 341 void set_methods(Array<Method*>* a) { _methods = a; } |
342 methodOop method_with_idnum(int idnum); | 342 Method* method_with_idnum(int idnum); |
343 | 343 |
344 // method ordering | 344 // method ordering |
345 typeArrayOop method_ordering() const { return _method_ordering; } | 345 Array<int>* method_ordering() const { return _method_ordering; } |
346 void set_method_ordering(typeArrayOop m) { oop_store_without_check((oop*) &_method_ordering, (oop) m); } | 346 void set_method_ordering(Array<int>* m) { _method_ordering = m; } |
347 | 347 |
348 // interfaces | 348 // interfaces |
349 objArrayOop local_interfaces() const { return _local_interfaces; } | 349 Array<Klass*>* local_interfaces() const { return _local_interfaces; } |
350 void set_local_interfaces(objArrayOop a) { oop_store_without_check((oop*) &_local_interfaces, (oop) a); } | 350 void set_local_interfaces(Array<Klass*>* a) { |
351 objArrayOop transitive_interfaces() const { return _transitive_interfaces; } | 351 guarantee(_local_interfaces == NULL || a == NULL, "Just checking"); |
352 void set_transitive_interfaces(objArrayOop a) { oop_store_without_check((oop*) &_transitive_interfaces, (oop) a); } | 352 _local_interfaces = a; } |
353 Array<Klass*>* transitive_interfaces() const { return _transitive_interfaces; } | |
354 void set_transitive_interfaces(Array<Klass*>* a) { | |
355 guarantee(_transitive_interfaces == NULL || a == NULL, "Just checking"); | |
356 _transitive_interfaces = a; } | |
353 | 357 |
354 private: | 358 private: |
355 friend class fieldDescriptor; | 359 friend class fieldDescriptor; |
356 FieldInfo* field(int index) const { return FieldInfo::from_field_array(_fields, index); } | 360 FieldInfo* field(int index) const { return FieldInfo::from_field_array(_fields, index); } |
357 | 361 |
362 Symbol* field_signature (int index) const { return field(index)->signature(constants()); } | 366 Symbol* field_signature (int index) const { return field(index)->signature(constants()); } |
363 | 367 |
364 // Number of Java declared fields | 368 // Number of Java declared fields |
365 int java_fields_count() const { return (int)_java_fields_count; } | 369 int java_fields_count() const { return (int)_java_fields_count; } |
366 | 370 |
367 typeArrayOop fields() const { return _fields; } | 371 Array<u2>* fields() const { return _fields; } |
368 | 372 |
369 void set_fields(typeArrayOop f, u2 java_fields_count) { | 373 void set_fields(Array<u2>* f, u2 java_fields_count) { |
370 oop_store_without_check((oop*) &_fields, (oop) f); | 374 guarantee(_fields == NULL || f == NULL, "Just checking"); |
375 _fields = f; | |
371 _java_fields_count = java_fields_count; | 376 _java_fields_count = java_fields_count; |
372 } | 377 } |
373 | 378 |
374 // inner classes | 379 // inner classes |
375 typeArrayOop inner_classes() const { return _inner_classes; } | 380 Array<u2>* inner_classes() const { return _inner_classes; } |
376 void set_inner_classes(typeArrayOop f) { oop_store_without_check((oop*) &_inner_classes, (oop) f); } | 381 void set_inner_classes(Array<u2>* f) { _inner_classes = f; } |
377 | 382 |
378 enum InnerClassAttributeOffset { | 383 enum InnerClassAttributeOffset { |
379 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814 | 384 // From http://mirror.eng/products/jdk/1.1/docs/guide/innerclasses/spec/innerclasses.doc10.html#18814 |
380 inner_class_inner_class_info_offset = 0, | 385 inner_class_inner_class_info_offset = 0, |
381 inner_class_outer_class_info_offset = 1, | 386 inner_class_outer_class_info_offset = 1, |
392 | 397 |
393 // method override check | 398 // method override check |
394 bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS); | 399 bool is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS); |
395 | 400 |
396 // package | 401 // package |
397 bool is_same_class_package(klassOop class2); | 402 bool is_same_class_package(Klass* class2); |
398 bool is_same_class_package(oop classloader2, Symbol* classname2); | 403 bool is_same_class_package(oop classloader2, Symbol* classname2); |
399 static bool is_same_class_package(oop class_loader1, Symbol* class_name1, oop class_loader2, Symbol* class_name2); | 404 static bool is_same_class_package(oop class_loader1, Symbol* class_name1, oop class_loader2, Symbol* class_name2); |
400 | 405 |
401 // find an enclosing class (defined where original code was, in jvm.cpp!) | 406 // find an enclosing class (defined where original code was, in jvm.cpp!) |
402 klassOop compute_enclosing_class(bool* inner_is_member, TRAPS) { | 407 Klass* compute_enclosing_class(bool* inner_is_member, TRAPS) { |
403 instanceKlassHandle self(THREAD, this->as_klassOop()); | 408 instanceKlassHandle self(THREAD, this); |
404 return compute_enclosing_class_impl(self, inner_is_member, THREAD); | 409 return compute_enclosing_class_impl(self, inner_is_member, THREAD); |
405 } | 410 } |
406 static klassOop compute_enclosing_class_impl(instanceKlassHandle self, | 411 static Klass* compute_enclosing_class_impl(instanceKlassHandle self, |
407 bool* inner_is_member, TRAPS); | 412 bool* inner_is_member, TRAPS); |
408 | 413 |
409 // tell if two classes have the same enclosing class (at package level) | 414 // tell if two classes have the same enclosing class (at package level) |
410 bool is_same_package_member(klassOop class2, TRAPS) { | 415 bool is_same_package_member(Klass* class2, TRAPS) { |
411 instanceKlassHandle self(THREAD, this->as_klassOop()); | 416 instanceKlassHandle self(THREAD, this); |
412 return is_same_package_member_impl(self, class2, THREAD); | 417 return is_same_package_member_impl(self, class2, THREAD); |
413 } | 418 } |
414 static bool is_same_package_member_impl(instanceKlassHandle self, | 419 static bool is_same_package_member_impl(instanceKlassHandle self, |
415 klassOop class2, TRAPS); | 420 Klass* class2, TRAPS); |
416 | 421 |
417 // initialization state | 422 // initialization state |
418 bool is_loaded() const { return _init_state >= loaded; } | 423 bool is_loaded() const { return _init_state >= loaded; } |
419 bool is_linked() const { return _init_state >= linked; } | 424 bool is_linked() const { return _init_state >= linked; } |
420 bool is_initialized() const { return _init_state == fully_initialized; } | 425 bool is_initialized() const { return _init_state == fully_initialized; } |
447 void link_class(TRAPS); | 452 void link_class(TRAPS); |
448 bool link_class_or_fail(TRAPS); // returns false on failure | 453 bool link_class_or_fail(TRAPS); // returns false on failure |
449 void unlink_class(); | 454 void unlink_class(); |
450 void rewrite_class(TRAPS); | 455 void rewrite_class(TRAPS); |
451 void relocate_and_link_methods(TRAPS); | 456 void relocate_and_link_methods(TRAPS); |
452 methodOop class_initializer(); | 457 Method* class_initializer(); |
453 | 458 |
454 // set the class to initialized if no static initializer is present | 459 // set the class to initialized if no static initializer is present |
455 void eager_initialize(Thread *thread); | 460 void eager_initialize(Thread *thread); |
456 | 461 |
457 // reference type | 462 // reference type |
459 void set_reference_type(ReferenceType t) { | 464 void set_reference_type(ReferenceType t) { |
460 assert(t == (u1)t, "overflow"); | 465 assert(t == (u1)t, "overflow"); |
461 _reference_type = (u1)t; | 466 _reference_type = (u1)t; |
462 } | 467 } |
463 | 468 |
464 static ByteSize reference_type_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _reference_type)); } | 469 static ByteSize reference_type_offset() { return in_ByteSize(offset_of(InstanceKlass, _reference_type)); } |
465 | 470 |
466 // find local field, returns true if found | 471 // find local field, returns true if found |
467 bool find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; | 472 bool find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
468 // find field in direct superinterfaces, returns the interface in which the field is defined | 473 // find field in direct superinterfaces, returns the interface in which the field is defined |
469 klassOop find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; | 474 Klass* find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
470 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined | 475 // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined |
471 klassOop find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; | 476 Klass* find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const; |
472 // find instance or static fields according to JVM spec 5.4.3.2, returns the klass in which the field is defined | 477 // find instance or static fields according to JVM spec 5.4.3.2, returns the klass in which the field is defined |
473 klassOop find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const; | 478 Klass* find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const; |
474 | 479 |
475 // find a non-static or static field given its offset within the class. | 480 // find a non-static or static field given its offset within the class. |
476 bool contains_field_offset(int offset) { | 481 bool contains_field_offset(int offset) { |
477 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size()); | 482 return instanceOopDesc::contains_field_offset(offset, nonstatic_field_size()); |
478 } | 483 } |
479 | 484 |
480 bool find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; | 485 bool find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; |
481 bool find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; | 486 bool find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const; |
482 | 487 |
483 // find a local method (returns NULL if not found) | 488 // find a local method (returns NULL if not found) |
484 methodOop find_method(Symbol* name, Symbol* signature) const; | 489 Method* find_method(Symbol* name, Symbol* signature) const; |
485 static methodOop find_method(objArrayOop methods, Symbol* name, Symbol* signature); | 490 static Method* find_method(Array<Method*>* methods, Symbol* name, Symbol* signature); |
486 | 491 |
487 // lookup operation (returns NULL if not found) | 492 // lookup operation (returns NULL if not found) |
488 methodOop uncached_lookup_method(Symbol* name, Symbol* signature) const; | 493 Method* uncached_lookup_method(Symbol* name, Symbol* signature) const; |
489 | 494 |
490 // lookup a method in all the interfaces that this class implements | 495 // lookup a method in all the interfaces that this class implements |
491 // (returns NULL if not found) | 496 // (returns NULL if not found) |
492 methodOop lookup_method_in_all_interfaces(Symbol* name, Symbol* signature) const; | 497 Method* lookup_method_in_all_interfaces(Symbol* name, Symbol* signature) const; |
498 | |
499 // Find method indices by name. If a method with the specified name is | |
500 // found the index to the first method is returned, and 'end' is filled in | |
501 // with the index of first non-name-matching method. If no method is found | |
502 // -1 is returned. | |
503 int find_method_by_name(Symbol* name, int* end); | |
504 static int find_method_by_name(Array<Method*>* methods, Symbol* name, int* end); | |
493 | 505 |
494 // constant pool | 506 // constant pool |
495 constantPoolOop constants() const { return _constants; } | 507 ConstantPool* constants() const { return _constants; } |
496 void set_constants(constantPoolOop c) { oop_store_without_check((oop*) &_constants, (oop) c); } | 508 void set_constants(ConstantPool* c) { _constants = c; } |
497 | |
498 // class loader | |
499 oop class_loader() const { return _class_loader; } | |
500 void set_class_loader(oop l) { oop_store((oop*) &_class_loader, l); } | |
501 | 509 |
502 // protection domain | 510 // protection domain |
503 oop protection_domain() { return _protection_domain; } | 511 oop protection_domain() { return _protection_domain; } |
504 void set_protection_domain(oop pd) { oop_store((oop*) &_protection_domain, pd); } | 512 void set_protection_domain(oop pd) { klass_oop_store(&_protection_domain, pd); } |
505 | 513 |
506 // host class | 514 // host class |
507 oop host_klass() const { | 515 Klass* host_klass() const { |
508 oop* hk = adr_host_klass(); | 516 Klass** hk = (Klass**)adr_host_klass(); |
509 if (hk == NULL) { | 517 if (hk == NULL) { |
510 return NULL; | 518 return NULL; |
511 } else { | 519 } else { |
512 return *hk; | 520 return *hk; |
513 } | 521 } |
514 } | 522 } |
515 void set_host_klass(oop host) { | 523 void set_host_klass(Klass* host) { |
516 assert(is_anonymous(), "not anonymous"); | 524 assert(is_anonymous(), "not anonymous"); |
517 oop* addr = adr_host_klass(); | 525 Klass** addr = (Klass**)adr_host_klass(); |
518 assert(addr != NULL, "no reversed space"); | 526 assert(addr != NULL, "no reversed space"); |
519 oop_store(addr, host); | 527 *addr = host; |
520 } | 528 } |
521 bool is_anonymous() const { | 529 bool is_anonymous() const { |
522 return (_misc_flags & _misc_is_anonymous) != 0; | 530 return (_misc_flags & _misc_is_anonymous) != 0; |
523 } | 531 } |
524 void set_is_anonymous(bool value) { | 532 void set_is_anonymous(bool value) { |
529 } | 537 } |
530 } | 538 } |
531 | 539 |
532 // signers | 540 // signers |
533 objArrayOop signers() const { return _signers; } | 541 objArrayOop signers() const { return _signers; } |
534 void set_signers(objArrayOop s) { oop_store((oop*) &_signers, oop(s)); } | 542 void set_signers(objArrayOop s) { klass_oop_store((oop*)&_signers, s); } |
535 | 543 |
536 // source file name | 544 // source file name |
537 Symbol* source_file_name() const { return _source_file_name; } | 545 Symbol* source_file_name() const { return _source_file_name; } |
538 void set_source_file_name(Symbol* n); | 546 void set_source_file_name(Symbol* n); |
539 | 547 |
576 } | 584 } |
577 GrowableArray<PreviousVersionNode *>* previous_versions() const { | 585 GrowableArray<PreviousVersionNode *>* previous_versions() const { |
578 return _previous_versions; | 586 return _previous_versions; |
579 } | 587 } |
580 | 588 |
589 static void purge_previous_versions(InstanceKlass* ik); | |
590 | |
581 // JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation | 591 // JVMTI: Support for caching a class file before it is modified by an agent that can do retransformation |
582 void set_cached_class_file(unsigned char *class_file_bytes, | 592 void set_cached_class_file(unsigned char *class_file_bytes, |
583 jint class_file_len) { _cached_class_file_len = class_file_len; | 593 jint class_file_len) { _cached_class_file_len = class_file_len; |
584 _cached_class_file_bytes = class_file_bytes; } | 594 _cached_class_file_bytes = class_file_bytes; } |
585 jint get_cached_class_file_len() { return _cached_class_file_len; } | 595 jint get_cached_class_file_len() { return _cached_class_file_len; } |
591 } | 601 } |
592 JvmtiCachedClassFieldMap* jvmti_cached_class_field_map() const { | 602 JvmtiCachedClassFieldMap* jvmti_cached_class_field_map() const { |
593 return _jvmti_cached_class_field_map; | 603 return _jvmti_cached_class_field_map; |
594 } | 604 } |
595 | 605 |
596 // for adding methods, constMethodOopDesc::UNSET_IDNUM means no more ids available | 606 bool has_default_methods() const { return _has_default_methods; } |
607 void set_has_default_methods(bool b) { _has_default_methods = b; } | |
608 | |
609 // for adding methods, ConstMethod::UNSET_IDNUM means no more ids available | |
597 inline u2 next_method_idnum(); | 610 inline u2 next_method_idnum(); |
598 void set_initial_method_idnum(u2 value) { _idnum_allocated_count = value; } | 611 void set_initial_method_idnum(u2 value) { _idnum_allocated_count = value; } |
599 | 612 |
600 // generics support | 613 // generics support |
601 Symbol* generic_signature() const { return _generic_signature; } | 614 Symbol* generic_signature() const { return _generic_signature; } |
618 size_t idnum, jmethodID new_id, jmethodID* new_jmeths, | 631 size_t idnum, jmethodID new_id, jmethodID* new_jmeths, |
619 jmethodID* to_dealloc_id_p, | 632 jmethodID* to_dealloc_id_p, |
620 jmethodID** to_dealloc_jmeths_p); | 633 jmethodID** to_dealloc_jmeths_p); |
621 static void get_jmethod_id_length_value(jmethodID* cache, size_t idnum, | 634 static void get_jmethod_id_length_value(jmethodID* cache, size_t idnum, |
622 size_t *length_p, jmethodID* id_p); | 635 size_t *length_p, jmethodID* id_p); |
623 jmethodID jmethod_id_or_null(methodOop method); | 636 jmethodID jmethod_id_or_null(Method* method); |
624 | 637 |
625 // cached itable index support | 638 // cached itable index support |
626 void set_cached_itable_index(size_t idnum, int index); | 639 void set_cached_itable_index(size_t idnum, int index); |
627 int cached_itable_index(size_t idnum); | 640 int cached_itable_index(size_t idnum); |
628 | 641 |
629 // annotations support | 642 // annotations support |
630 typeArrayOop class_annotations() const { return _class_annotations; } | 643 Annotations* annotations() const { return _annotations; } |
631 objArrayOop fields_annotations() const { return _fields_annotations; } | 644 void set_annotations(Annotations* anno) { _annotations = anno; } |
632 objArrayOop methods_annotations() const { return _methods_annotations; } | 645 AnnotationArray* class_annotations() const { |
633 objArrayOop methods_parameter_annotations() const { return _methods_parameter_annotations; } | 646 if (annotations() == NULL) return NULL; |
634 objArrayOop methods_default_annotations() const { return _methods_default_annotations; } | 647 return annotations()->class_annotations(); |
635 void set_class_annotations(typeArrayOop md) { oop_store_without_check((oop*)&_class_annotations, (oop)md); } | 648 } |
636 void set_fields_annotations(objArrayOop md) { set_annotations(md, &_fields_annotations); } | 649 Array<AnnotationArray*>* fields_annotations() const { |
637 void set_methods_annotations(objArrayOop md) { set_annotations(md, &_methods_annotations); } | 650 if (annotations() == NULL) return NULL; |
638 void set_methods_parameter_annotations(objArrayOop md) { set_annotations(md, &_methods_parameter_annotations); } | 651 return annotations()->fields_annotations(); |
639 void set_methods_default_annotations(objArrayOop md) { set_annotations(md, &_methods_default_annotations); } | 652 } |
640 typeArrayOop get_method_annotations_of(int idnum) | |
641 { return get_method_annotations_from(idnum, _methods_annotations); } | |
642 typeArrayOop get_method_parameter_annotations_of(int idnum) | |
643 { return get_method_annotations_from(idnum, _methods_parameter_annotations); } | |
644 typeArrayOop get_method_default_annotations_of(int idnum) | |
645 { return get_method_annotations_from(idnum, _methods_default_annotations); } | |
646 void set_method_annotations_of(int idnum, typeArrayOop anno) | |
647 { set_methods_annotations_of(idnum, anno, &_methods_annotations); } | |
648 void set_method_parameter_annotations_of(int idnum, typeArrayOop anno) | |
649 { set_methods_annotations_of(idnum, anno, &_methods_parameter_annotations); } | |
650 void set_method_default_annotations_of(int idnum, typeArrayOop anno) | |
651 { set_methods_annotations_of(idnum, anno, &_methods_default_annotations); } | |
652 | 653 |
653 // allocation | 654 // allocation |
654 DEFINE_ALLOCATE_PERMANENT(instanceKlass); | |
655 instanceOop allocate_instance(TRAPS); | 655 instanceOop allocate_instance(TRAPS); |
656 instanceOop allocate_permanent_instance(TRAPS); | |
657 | 656 |
658 // additional member function to return a handle | 657 // additional member function to return a handle |
659 instanceHandle allocate_instance_handle(TRAPS) { return instanceHandle(THREAD, allocate_instance(THREAD)); } | 658 instanceHandle allocate_instance_handle(TRAPS) { return instanceHandle(THREAD, allocate_instance(THREAD)); } |
660 | 659 |
661 objArrayOop allocate_objArray(int n, int length, TRAPS); | 660 objArrayOop allocate_objArray(int n, int length, TRAPS); |
688 // On-stack replacement support | 687 // On-stack replacement support |
689 nmethod* osr_nmethods_head() const { return _osr_nmethods_head; }; | 688 nmethod* osr_nmethods_head() const { return _osr_nmethods_head; }; |
690 void set_osr_nmethods_head(nmethod* h) { _osr_nmethods_head = h; }; | 689 void set_osr_nmethods_head(nmethod* h) { _osr_nmethods_head = h; }; |
691 void add_osr_nmethod(nmethod* n); | 690 void add_osr_nmethod(nmethod* n); |
692 void remove_osr_nmethod(nmethod* n); | 691 void remove_osr_nmethod(nmethod* n); |
693 nmethod* lookup_osr_nmethod(const methodOop m, int bci, int level, bool match_level) const; | 692 nmethod* lookup_osr_nmethod(Method* const m, int bci, int level, bool match_level) const; |
694 | 693 |
695 // Breakpoint support (see methods on methodOop for details) | 694 // Breakpoint support (see methods on Method* for details) |
696 BreakpointInfo* breakpoints() const { return _breakpoints; }; | 695 BreakpointInfo* breakpoints() const { return _breakpoints; }; |
697 void set_breakpoints(BreakpointInfo* bps) { _breakpoints = bps; }; | 696 void set_breakpoints(BreakpointInfo* bps) { _breakpoints = bps; }; |
698 | 697 |
699 // support for stub routines | 698 // support for stub routines |
700 static ByteSize init_state_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _init_state)); } | 699 static ByteSize init_state_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_state)); } |
701 TRACE_DEFINE_OFFSET; | 700 TRACE_DEFINE_OFFSET; |
702 static ByteSize init_thread_offset() { return in_ByteSize(sizeof(klassOopDesc) + offset_of(instanceKlass, _init_thread)); } | 701 static ByteSize init_thread_offset() { return in_ByteSize(offset_of(InstanceKlass, _init_thread)); } |
703 | 702 |
704 // subclass/subinterface checks | 703 // subclass/subinterface checks |
705 bool implements_interface(klassOop k) const; | 704 bool implements_interface(Klass* k) const; |
706 | 705 |
707 // Access to the implementor of an interface. | 706 // Access to the implementor of an interface. |
708 klassOop implementor() const | 707 Klass* implementor() const |
709 { | 708 { |
710 klassOop* k = (klassOop*)adr_implementor(); | 709 Klass** k = adr_implementor(); |
711 if (k == NULL) { | 710 if (k == NULL) { |
712 return NULL; | 711 return NULL; |
713 } else { | 712 } else { |
714 return *k; | 713 return *k; |
715 } | 714 } |
716 } | 715 } |
717 | 716 |
718 void set_implementor(klassOop k) { | 717 void set_implementor(Klass* k) { |
719 assert(is_interface(), "not interface"); | 718 assert(is_interface(), "not interface"); |
720 oop* addr = adr_implementor(); | 719 Klass** addr = adr_implementor(); |
721 oop_store_without_check(addr, k); | 720 *addr = k; |
722 } | 721 } |
723 | 722 |
724 int nof_implementors() const { | 723 int nof_implementors() const { |
725 klassOop k = implementor(); | 724 Klass* k = implementor(); |
726 if (k == NULL) { | 725 if (k == NULL) { |
727 return 0; | 726 return 0; |
728 } else if (k != this->as_klassOop()) { | 727 } else if (k != this) { |
729 return 1; | 728 return 1; |
730 } else { | 729 } else { |
731 return 2; | 730 return 2; |
732 } | 731 } |
733 } | 732 } |
734 | 733 |
735 void add_implementor(klassOop k); // k is a new class that implements this interface | 734 void add_implementor(Klass* k); // k is a new class that implements this interface |
736 void init_implementor(); // initialize | 735 void init_implementor(); // initialize |
737 | 736 |
738 // link this class into the implementors list of every interface it implements | 737 // link this class into the implementors list of every interface it implements |
739 void process_interfaces(Thread *thread); | 738 void process_interfaces(Thread *thread); |
740 | 739 |
741 // virtual operations from Klass | 740 // virtual operations from Klass |
742 objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS); | 741 bool is_leaf_class() const { return _subklass == NULL; } |
743 bool compute_is_subtype_of(klassOop k); | 742 GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots); |
743 bool compute_is_subtype_of(Klass* k); | |
744 bool can_be_primary_super_slow() const; | 744 bool can_be_primary_super_slow() const; |
745 klassOop java_super() const { return super(); } | |
746 int oop_size(oop obj) const { return size_helper(); } | 745 int oop_size(oop obj) const { return size_helper(); } |
747 int klass_oop_size() const { return object_size(); } | |
748 bool oop_is_instance_slow() const { return true; } | 746 bool oop_is_instance_slow() const { return true; } |
749 | 747 |
750 // Iterators | 748 // Iterators |
751 void do_local_static_fields(FieldClosure* cl); | 749 void do_local_static_fields(FieldClosure* cl); |
752 void do_nonstatic_fields(FieldClosure* cl); // including inherited fields | 750 void do_nonstatic_fields(FieldClosure* cl); // including inherited fields |
753 void do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS); | 751 void do_local_static_fields(void f(fieldDescriptor*, TRAPS), TRAPS); |
754 | 752 |
755 void methods_do(void f(methodOop method)); | 753 void methods_do(void f(Method* method)); |
756 void array_klasses_do(void f(klassOop k)); | 754 void array_klasses_do(void f(Klass* k)); |
757 void with_array_klasses_do(void f(klassOop k)); | 755 void array_klasses_do(void f(Klass* k, TRAPS), TRAPS); |
756 void with_array_klasses_do(void f(Klass* k)); | |
758 bool super_types_do(SuperTypeClosure* blk); | 757 bool super_types_do(SuperTypeClosure* blk); |
759 | 758 |
760 // Casting from klassOop | 759 // Casting from Klass* |
761 static instanceKlass* cast(klassOop k) { | 760 static InstanceKlass* cast(Klass* k) { |
762 assert(k->is_klass(), "must be"); | 761 assert(k->is_klass(), "must be"); |
763 Klass* kp = k->klass_part(); | 762 assert(k->oop_is_instance(), "cast to InstanceKlass"); |
764 assert(kp->null_vtbl() || kp->oop_is_instance_slow(), "cast to instanceKlass"); | 763 return (InstanceKlass*) k; |
765 return (instanceKlass*) kp; | 764 } |
765 | |
766 InstanceKlass* java_super() const { | |
767 return (super() == NULL) ? NULL : cast(super()); | |
766 } | 768 } |
767 | 769 |
768 // Sizing (in words) | 770 // Sizing (in words) |
769 static int header_size() { return align_object_offset(oopDesc::header_size() + sizeof(instanceKlass)/HeapWordSize); } | 771 static int header_size() { return align_object_offset(sizeof(InstanceKlass)/HeapWordSize); } |
770 | 772 static int size(int vtable_length, int itable_length, |
771 int object_size() const | 773 int nonstatic_oop_map_size, |
772 { | 774 bool is_interface, bool is_anonymous) { |
773 return object_size(align_object_offset(vtable_length()) + | 775 return align_object_size(header_size() + |
774 align_object_offset(itable_length()) + | 776 align_object_offset(vtable_length) + |
775 ((is_interface() || is_anonymous()) ? | 777 align_object_offset(itable_length) + |
776 align_object_offset(nonstatic_oop_map_size()) : | 778 ((is_interface || is_anonymous) ? |
777 nonstatic_oop_map_size()) + | 779 align_object_offset(nonstatic_oop_map_size) : |
778 (is_interface() ? (int)sizeof(klassOop)/HeapWordSize : 0) + | 780 nonstatic_oop_map_size) + |
779 (is_anonymous() ? (int)sizeof(klassOop)/HeapWordSize : 0)); | 781 (is_interface ? (int)sizeof(Klass*)/HeapWordSize : 0) + |
780 } | 782 (is_anonymous ? (int)sizeof(Klass*)/HeapWordSize : 0)); |
783 } | |
784 int size() const { return size(vtable_length(), | |
785 itable_length(), | |
786 nonstatic_oop_map_size(), | |
787 is_interface(), | |
788 is_anonymous()); | |
789 } | |
790 | |
781 static int vtable_start_offset() { return header_size(); } | 791 static int vtable_start_offset() { return header_size(); } |
782 static int vtable_length_offset() { return oopDesc::header_size() + offset_of(instanceKlass, _vtable_len) / HeapWordSize; } | 792 static int vtable_length_offset() { return offset_of(InstanceKlass, _vtable_len) / HeapWordSize; } |
783 static int object_size(int extra) { return align_object_size(header_size() + extra); } | 793 |
784 | 794 intptr_t* start_of_vtable() const { return ((intptr_t*)this) + vtable_start_offset(); } |
785 intptr_t* start_of_vtable() const { return ((intptr_t*)as_klassOop()) + vtable_start_offset(); } | |
786 intptr_t* start_of_itable() const { return start_of_vtable() + align_object_offset(vtable_length()); } | 795 intptr_t* start_of_itable() const { return start_of_vtable() + align_object_offset(vtable_length()); } |
787 int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)as_klassOop(); } | 796 int itable_offset_in_words() const { return start_of_itable() - (intptr_t*)this; } |
788 | 797 |
789 intptr_t* end_of_itable() const { return start_of_itable() + itable_length(); } | 798 intptr_t* end_of_itable() const { return start_of_itable() + itable_length(); } |
790 | 799 |
791 address static_field_addr(int offset); | 800 address static_field_addr(int offset); |
792 | 801 |
793 OopMapBlock* start_of_nonstatic_oop_maps() const { | 802 OopMapBlock* start_of_nonstatic_oop_maps() const { |
794 return (OopMapBlock*)(start_of_itable() + align_object_offset(itable_length())); | 803 return (OopMapBlock*)(start_of_itable() + align_object_offset(itable_length())); |
795 } | 804 } |
796 | 805 |
797 oop* adr_implementor() const { | 806 Klass** adr_implementor() const { |
798 if (is_interface()) { | 807 if (is_interface()) { |
799 return (oop*)(start_of_nonstatic_oop_maps() + | 808 return (Klass**)(start_of_nonstatic_oop_maps() + |
800 nonstatic_oop_map_count()); | 809 nonstatic_oop_map_count()); |
801 } else { | 810 } else { |
802 return NULL; | 811 return NULL; |
803 } | 812 } |
804 }; | 813 }; |
805 | 814 |
806 oop* adr_host_klass() const { | 815 Klass** adr_host_klass() const { |
807 if (is_anonymous()) { | 816 if (is_anonymous()) { |
808 oop* adr_impl = adr_implementor(); | 817 Klass** adr_impl = adr_implementor(); |
809 if (adr_impl != NULL) { | 818 if (adr_impl != NULL) { |
810 return adr_impl + 1; | 819 return adr_impl + 1; |
811 } else { | 820 } else { |
812 return (oop*)(start_of_nonstatic_oop_maps() + | 821 return (Klass**)(start_of_nonstatic_oop_maps() + |
813 nonstatic_oop_map_count()); | 822 nonstatic_oop_map_count()); |
814 } | 823 } |
815 } else { | 824 } else { |
816 return NULL; | 825 return NULL; |
817 } | 826 } |
836 return !layout_helper_needs_slow_path(layout_helper()); | 845 return !layout_helper_needs_slow_path(layout_helper()); |
837 } | 846 } |
838 | 847 |
839 // Java vtable/itable | 848 // Java vtable/itable |
840 klassVtable* vtable() const; // return new klassVtable wrapper | 849 klassVtable* vtable() const; // return new klassVtable wrapper |
841 inline methodOop method_at_vtable(int index); | 850 inline Method* method_at_vtable(int index); |
842 klassItable* itable() const; // return new klassItable wrapper | 851 klassItable* itable() const; // return new klassItable wrapper |
843 methodOop method_at_itable(klassOop holder, int index, TRAPS); | 852 Method* method_at_itable(Klass* holder, int index, TRAPS); |
844 | 853 |
845 // Garbage collection | 854 // Garbage collection |
855 virtual void oops_do(OopClosure* cl); | |
856 | |
846 void oop_follow_contents(oop obj); | 857 void oop_follow_contents(oop obj); |
847 int oop_adjust_pointers(oop obj); | 858 int oop_adjust_pointers(oop obj); |
848 bool object_is_parsable() const { return _init_state != unparsable_by_gc; } | 859 |
849 // Value of _init_state must be zero (unparsable_by_gc) when klass field is set. | 860 void clean_implementors_list(BoolObjectClosure* is_alive); |
850 | 861 void clean_method_data(BoolObjectClosure* is_alive); |
851 void follow_weak_klass_links( | 862 |
852 BoolObjectClosure* is_alive, OopClosure* keep_alive); | 863 // Explicit metaspace deallocation of fields |
864 // For RedefineClasses, we need to deallocate instanceKlasses | |
865 void deallocate_contents(ClassLoaderData* loader_data); | |
866 | |
867 // The constant pool is on stack if any of the methods are executing or | |
868 // referenced by handles. | |
869 bool on_stack() const { return _constants->on_stack(); } | |
870 | |
853 void release_C_heap_structures(); | 871 void release_C_heap_structures(); |
854 | 872 |
855 // Parallel Scavenge and Parallel Old | 873 // Parallel Scavenge and Parallel Old |
856 PARALLEL_GC_DECLS | 874 PARALLEL_GC_DECLS |
857 | 875 |
858 // Naming | 876 // Naming |
859 const char* signature_name() const; | 877 const char* signature_name() const; |
860 | 878 |
861 // Iterators | 879 // Iterators |
862 int oop_oop_iterate(oop obj, OopClosure* blk) { | 880 int oop_oop_iterate(oop obj, ExtendedOopClosure* blk) { |
863 return oop_oop_iterate_v(obj, blk); | 881 return oop_oop_iterate_v(obj, blk); |
864 } | 882 } |
865 | 883 |
866 int oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | 884 int oop_oop_iterate_m(oop obj, ExtendedOopClosure* blk, MemRegion mr) { |
867 return oop_oop_iterate_v_m(obj, blk, mr); | 885 return oop_oop_iterate_v_m(obj, blk, mr); |
868 } | 886 } |
869 | 887 |
870 #define InstanceKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ | 888 #define InstanceKlass_OOP_OOP_ITERATE_DECL(OopClosureType, nv_suffix) \ |
871 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ | 889 int oop_oop_iterate##nv_suffix(oop obj, OopClosureType* blk); \ |
881 | 899 |
882 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) | 900 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) |
883 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) | 901 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DECL) |
884 #endif // !SERIALGC | 902 #endif // !SERIALGC |
885 | 903 |
904 u2 idnum_allocated_count() const { return _idnum_allocated_count; } | |
886 private: | 905 private: |
887 // initialization state | 906 // initialization state |
888 #ifdef ASSERT | 907 #ifdef ASSERT |
889 void set_init_state(ClassState state); | 908 void set_init_state(ClassState state); |
890 #else | 909 #else |
891 void set_init_state(ClassState state) { _init_state = (u1)state; } | 910 void set_init_state(ClassState state) { _init_state = (u1)state; } |
892 #endif | 911 #endif |
893 void set_rewritten() { _misc_flags |= _misc_rewritten; } | 912 void set_rewritten() { _misc_flags |= _misc_rewritten; } |
894 void set_init_thread(Thread *thread) { _init_thread = thread; } | 913 void set_init_thread(Thread *thread) { _init_thread = thread; } |
895 | 914 |
896 u2 idnum_allocated_count() const { return _idnum_allocated_count; } | |
897 // The RedefineClasses() API can cause new method idnums to be needed | 915 // The RedefineClasses() API can cause new method idnums to be needed |
898 // which will cause the caches to grow. Safety requires different | 916 // which will cause the caches to grow. Safety requires different |
899 // cache management logic if the caches can grow instead of just | 917 // cache management logic if the caches can grow instead of just |
900 // going from NULL to non-NULL. | 918 // going from NULL to non-NULL. |
901 bool idnum_can_increment() const { return has_been_redefined(); } | 919 bool idnum_can_increment() const { return has_been_redefined(); } |
907 int* methods_cached_itable_indices_acquire() const | 925 int* methods_cached_itable_indices_acquire() const |
908 { return (int*)OrderAccess::load_ptr_acquire(&_methods_cached_itable_indices); } | 926 { return (int*)OrderAccess::load_ptr_acquire(&_methods_cached_itable_indices); } |
909 void release_set_methods_cached_itable_indices(int* indices) | 927 void release_set_methods_cached_itable_indices(int* indices) |
910 { OrderAccess::release_store_ptr(&_methods_cached_itable_indices, indices); } | 928 { OrderAccess::release_store_ptr(&_methods_cached_itable_indices, indices); } |
911 | 929 |
912 inline typeArrayOop get_method_annotations_from(int idnum, objArrayOop annos); | 930 // Lock during initialization |
913 void set_annotations(objArrayOop md, objArrayOop* md_p) { oop_store_without_check((oop*)md_p, (oop)md); } | 931 volatile oop init_lock() const; |
914 void set_methods_annotations_of(int idnum, typeArrayOop anno, objArrayOop* md_p); | 932 void set_init_lock(oop value) { klass_oop_store(&_init_lock, value); } |
933 void fence_and_clear_init_lock(); // after fully_initialized | |
915 | 934 |
916 // Offsets for memory management | 935 // Offsets for memory management |
917 oop* adr_array_klasses() const { return (oop*)&this->_array_klasses;} | |
918 oop* adr_methods() const { return (oop*)&this->_methods;} | |
919 oop* adr_method_ordering() const { return (oop*)&this->_method_ordering;} | |
920 oop* adr_local_interfaces() const { return (oop*)&this->_local_interfaces;} | |
921 oop* adr_transitive_interfaces() const { return (oop*)&this->_transitive_interfaces;} | |
922 oop* adr_fields() const { return (oop*)&this->_fields;} | |
923 oop* adr_constants() const { return (oop*)&this->_constants;} | |
924 oop* adr_class_loader() const { return (oop*)&this->_class_loader;} | |
925 oop* adr_protection_domain() const { return (oop*)&this->_protection_domain;} | 936 oop* adr_protection_domain() const { return (oop*)&this->_protection_domain;} |
926 oop* adr_signers() const { return (oop*)&this->_signers;} | 937 oop* adr_signers() const { return (oop*)&this->_signers;} |
927 oop* adr_inner_classes() const { return (oop*)&this->_inner_classes;} | 938 oop* adr_init_lock() const { return (oop*)&this->_init_lock;} |
928 oop* adr_methods_jmethod_ids() const { return (oop*)&this->_methods_jmethod_ids;} | |
929 oop* adr_methods_cached_itable_indices() const { return (oop*)&this->_methods_cached_itable_indices;} | |
930 oop* adr_class_annotations() const { return (oop*)&this->_class_annotations;} | |
931 oop* adr_fields_annotations() const { return (oop*)&this->_fields_annotations;} | |
932 oop* adr_methods_annotations() const { return (oop*)&this->_methods_annotations;} | |
933 oop* adr_methods_parameter_annotations() const { return (oop*)&this->_methods_parameter_annotations;} | |
934 oop* adr_methods_default_annotations() const { return (oop*)&this->_methods_default_annotations;} | |
935 | 939 |
936 // Static methods that are used to implement member methods where an exposed this pointer | 940 // Static methods that are used to implement member methods where an exposed this pointer |
937 // is needed due to possible GCs | 941 // is needed due to possible GCs |
938 static bool link_class_impl (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); | 942 static bool link_class_impl (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); |
939 static bool verify_code (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); | 943 static bool verify_code (instanceKlassHandle this_oop, bool throw_verifyerror, TRAPS); |
940 static void initialize_impl (instanceKlassHandle this_oop, TRAPS); | 944 static void initialize_impl (instanceKlassHandle this_oop, TRAPS); |
941 static void eager_initialize_impl (instanceKlassHandle this_oop); | 945 static void eager_initialize_impl (instanceKlassHandle this_oop); |
942 static void set_initialization_state_and_notify_impl (instanceKlassHandle this_oop, ClassState state, TRAPS); | 946 static void set_initialization_state_and_notify_impl (instanceKlassHandle this_oop, ClassState state, TRAPS); |
943 static void call_class_initializer_impl (instanceKlassHandle this_oop, TRAPS); | 947 static void call_class_initializer_impl (instanceKlassHandle this_oop, TRAPS); |
944 static klassOop array_klass_impl (instanceKlassHandle this_oop, bool or_null, int n, TRAPS); | 948 static Klass* array_klass_impl (instanceKlassHandle this_oop, bool or_null, int n, TRAPS); |
945 static void do_local_static_fields_impl (instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS); | 949 static void do_local_static_fields_impl (instanceKlassHandle this_oop, void f(fieldDescriptor* fd, TRAPS), TRAPS); |
946 /* jni_id_for_impl for jfieldID only */ | 950 /* jni_id_for_impl for jfieldID only */ |
947 static JNIid* jni_id_for_impl (instanceKlassHandle this_oop, int offset); | 951 static JNIid* jni_id_for_impl (instanceKlassHandle this_oop, int offset); |
948 | 952 |
949 // Returns the array class for the n'th dimension | 953 // Returns the array class for the n'th dimension |
950 klassOop array_klass_impl(bool or_null, int n, TRAPS); | 954 Klass* array_klass_impl(bool or_null, int n, TRAPS); |
951 | 955 |
952 // Returns the array class with this class as element type | 956 // Returns the array class with this class as element type |
953 klassOop array_klass_impl(bool or_null, TRAPS); | 957 Klass* array_klass_impl(bool or_null, TRAPS); |
954 | 958 |
955 public: | 959 public: |
956 // sharing support | 960 // CDS support - remove and restore oops from metadata. Oops are not shared. |
957 virtual void remove_unshareable_info(); | 961 virtual void remove_unshareable_info(); |
958 virtual void shared_symbols_iterate(SymbolClosure* closure); | 962 virtual void restore_unshareable_info(TRAPS); |
959 | 963 |
960 // jvm support | 964 // jvm support |
961 jint compute_modifier_flags(TRAPS) const; | 965 jint compute_modifier_flags(TRAPS) const; |
962 | 966 |
963 public: | 967 public: |
964 // JVMTI support | 968 // JVMTI support |
965 jint jvmti_class_status() const; | 969 jint jvmti_class_status() const; |
966 | 970 |
967 public: | 971 public: |
968 // Printing | 972 // Printing |
973 #ifndef PRODUCT | |
974 void print_on(outputStream* st) const; | |
975 #endif | |
976 void print_value_on(outputStream* st) const; | |
977 | |
969 void oop_print_value_on(oop obj, outputStream* st); | 978 void oop_print_value_on(oop obj, outputStream* st); |
970 | 979 #ifndef PRODUCT |
971 void oop_print_on (oop obj, outputStream* st); | 980 void oop_print_on (oop obj, outputStream* st); |
972 | 981 |
973 void print_dependent_nmethods(bool verbose = false); | 982 void print_dependent_nmethods(bool verbose = false); |
974 bool is_dependent_nmethod(nmethod* nm); | 983 bool is_dependent_nmethod(nmethod* nm); |
984 #endif | |
985 | |
986 const char* internal_name() const; | |
975 | 987 |
976 // Verification | 988 // Verification |
977 const char* internal_name() const; | 989 void verify_on(outputStream* st); |
990 | |
978 void oop_verify_on(oop obj, outputStream* st); | 991 void oop_verify_on(oop obj, outputStream* st); |
979 }; | 992 }; |
980 | 993 |
981 inline methodOop instanceKlass::method_at_vtable(int index) { | 994 inline Method* InstanceKlass::method_at_vtable(int index) { |
982 #ifndef PRODUCT | 995 #ifndef PRODUCT |
983 assert(index >= 0, "valid vtable index"); | 996 assert(index >= 0, "valid vtable index"); |
984 if (DebugVtables) { | 997 if (DebugVtables) { |
985 verify_vtable_index(index); | 998 verify_vtable_index(index); |
986 } | 999 } |
987 #endif | 1000 #endif |
988 vtableEntry* ve = (vtableEntry*)start_of_vtable(); | 1001 vtableEntry* ve = (vtableEntry*)start_of_vtable(); |
989 return ve[index].method(); | 1002 return ve[index].method(); |
990 } | 1003 } |
991 | 1004 |
992 inline typeArrayOop instanceKlass::get_method_annotations_from(int idnum, objArrayOop annos) { | |
993 if (annos == NULL || annos->length() <= idnum) { | |
994 return NULL; | |
995 } | |
996 return typeArrayOop(annos->obj_at(idnum)); | |
997 } | |
998 | |
999 // for adding methods | 1005 // for adding methods |
1000 // UNSET_IDNUM return means no more ids available | 1006 // UNSET_IDNUM return means no more ids available |
1001 inline u2 instanceKlass::next_method_idnum() { | 1007 inline u2 InstanceKlass::next_method_idnum() { |
1002 if (_idnum_allocated_count == constMethodOopDesc::MAX_IDNUM) { | 1008 if (_idnum_allocated_count == ConstMethod::MAX_IDNUM) { |
1003 return constMethodOopDesc::UNSET_IDNUM; // no more ids available | 1009 return ConstMethod::UNSET_IDNUM; // no more ids available |
1004 } else { | 1010 } else { |
1005 return _idnum_allocated_count++; | 1011 return _idnum_allocated_count++; |
1006 } | 1012 } |
1007 } | 1013 } |
1008 | 1014 |
1009 | 1015 |
1010 /* JNIid class for jfieldIDs only */ | 1016 /* JNIid class for jfieldIDs only */ |
1011 class JNIid: public CHeapObj<mtClass> { | 1017 class JNIid: public CHeapObj<mtClass> { |
1012 friend class VMStructs; | 1018 friend class VMStructs; |
1013 private: | 1019 private: |
1014 klassOop _holder; | 1020 Klass* _holder; |
1015 JNIid* _next; | 1021 JNIid* _next; |
1016 int _offset; | 1022 int _offset; |
1017 #ifdef ASSERT | 1023 #ifdef ASSERT |
1018 bool _is_static_field_id; | 1024 bool _is_static_field_id; |
1019 #endif | 1025 #endif |
1020 | 1026 |
1021 public: | 1027 public: |
1022 // Accessors | 1028 // Accessors |
1023 klassOop holder() const { return _holder; } | 1029 Klass* holder() const { return _holder; } |
1024 int offset() const { return _offset; } | 1030 int offset() const { return _offset; } |
1025 JNIid* next() { return _next; } | 1031 JNIid* next() { return _next; } |
1026 // Constructor | 1032 // Constructor |
1027 JNIid(klassOop holder, int offset, JNIid* next); | 1033 JNIid(Klass* holder, int offset, JNIid* next); |
1028 // Identifier lookup | 1034 // Identifier lookup |
1029 JNIid* find(int offset); | 1035 JNIid* find(int offset); |
1030 | 1036 |
1031 bool find_local_field(fieldDescriptor* fd) { | 1037 bool find_local_field(fieldDescriptor* fd) { |
1032 return instanceKlass::cast(holder())->find_local_field_from_offset(offset(), true, fd); | 1038 return InstanceKlass::cast(holder())->find_local_field_from_offset(offset(), true, fd); |
1033 } | 1039 } |
1034 | 1040 |
1035 // Garbage collection support | |
1036 oop* holder_addr() { return (oop*)&_holder; } | |
1037 void oops_do(OopClosure* f); | |
1038 static void deallocate(JNIid* id); | 1041 static void deallocate(JNIid* id); |
1039 // Debugging | 1042 // Debugging |
1040 #ifdef ASSERT | 1043 #ifdef ASSERT |
1041 bool is_static_field_id() const { return _is_static_field_id; } | 1044 bool is_static_field_id() const { return _is_static_field_id; } |
1042 void set_is_static_field_id() { _is_static_field_id = true; } | 1045 void set_is_static_field_id() { _is_static_field_id = true; } |
1043 #endif | 1046 #endif |
1044 void verify(klassOop holder); | 1047 void verify(Klass* holder); |
1045 }; | 1048 }; |
1046 | 1049 |
1047 | 1050 |
1048 // If breakpoints are more numerous than just JVMTI breakpoints, | 1051 // If breakpoints are more numerous than just JVMTI breakpoints, |
1049 // consider compressing this data structure. | 1052 // consider compressing this data structure. |
1050 // It is currently a simple linked list defined in methodOop.hpp. | 1053 // It is currently a simple linked list defined in method.hpp. |
1051 | 1054 |
1052 class BreakpointInfo; | 1055 class BreakpointInfo; |
1053 | 1056 |
1054 | 1057 |
1055 // A collection point for interesting information about the previous | 1058 // A collection point for interesting information about the previous |
1056 // version(s) of an instanceKlass. This class uses weak references to | 1059 // version(s) of an InstanceKlass. This class uses weak references to |
1057 // the information so that the information may be collected as needed | 1060 // the information so that the information may be collected as needed |
1058 // by the system. If the information is shared, then a regular | 1061 // by the system. If the information is shared, then a regular |
1059 // reference must be used because a weak reference would be seen as | 1062 // reference must be used because a weak reference would be seen as |
1060 // collectible. A GrowableArray of PreviousVersionNodes is attached | 1063 // collectible. A GrowableArray of PreviousVersionNodes is attached |
1061 // to the instanceKlass as needed. See PreviousVersionWalker below. | 1064 // to the InstanceKlass as needed. See PreviousVersionWalker below. |
1062 class PreviousVersionNode : public CHeapObj<mtClass> { | 1065 class PreviousVersionNode : public CHeapObj<mtClass> { |
1063 private: | 1066 private: |
1064 // A shared ConstantPool is never collected so we'll always have | 1067 // A shared ConstantPool is never collected so we'll always have |
1065 // a reference to it so we can update items in the cache. We'll | 1068 // a reference to it so we can update items in the cache. We'll |
1066 // have a weak reference to a non-shared ConstantPool until all | 1069 // have a weak reference to a non-shared ConstantPool until all |
1067 // of the methods (EMCP or obsolete) have been collected; the | 1070 // of the methods (EMCP or obsolete) have been collected; the |
1068 // non-shared ConstantPool becomes collectible at that point. | 1071 // non-shared ConstantPool becomes collectible at that point. |
1069 jobject _prev_constant_pool; // regular or weak reference | 1072 ConstantPool* _prev_constant_pool; // regular or weak reference |
1070 bool _prev_cp_is_weak; // true if not a shared ConstantPool | 1073 bool _prev_cp_is_weak; // true if not a shared ConstantPool |
1071 | 1074 |
1072 // If the previous version of the instanceKlass doesn't have any | 1075 // If the previous version of the InstanceKlass doesn't have any |
1073 // EMCP methods, then _prev_EMCP_methods will be NULL. If all the | 1076 // EMCP methods, then _prev_EMCP_methods will be NULL. If all the |
1074 // EMCP methods have been collected, then _prev_EMCP_methods can | 1077 // EMCP methods have been collected, then _prev_EMCP_methods can |
1075 // have a length of zero. | 1078 // have a length of zero. |
1076 GrowableArray<jweak>* _prev_EMCP_methods; | 1079 GrowableArray<Method*>* _prev_EMCP_methods; |
1077 | 1080 |
1078 public: | 1081 public: |
1079 PreviousVersionNode(jobject prev_constant_pool, bool prev_cp_is_weak, | 1082 PreviousVersionNode(ConstantPool* prev_constant_pool, bool prev_cp_is_weak, |
1080 GrowableArray<jweak>* prev_EMCP_methods); | 1083 GrowableArray<Method*>* prev_EMCP_methods); |
1081 ~PreviousVersionNode(); | 1084 ~PreviousVersionNode(); |
1082 jobject prev_constant_pool() const { | 1085 ConstantPool* prev_constant_pool() const { |
1083 return _prev_constant_pool; | 1086 return _prev_constant_pool; |
1084 } | 1087 } |
1085 GrowableArray<jweak>* prev_EMCP_methods() const { | 1088 GrowableArray<Method*>* prev_EMCP_methods() const { |
1086 return _prev_EMCP_methods; | 1089 return _prev_EMCP_methods; |
1087 } | 1090 } |
1088 }; | 1091 }; |
1089 | 1092 |
1090 | 1093 |
1091 // A Handle-ized version of PreviousVersionNode. | 1094 // A Handle-ized version of PreviousVersionNode. |
1092 class PreviousVersionInfo : public ResourceObj { | 1095 class PreviousVersionInfo : public ResourceObj { |
1093 private: | 1096 private: |
1094 constantPoolHandle _prev_constant_pool_handle; | 1097 constantPoolHandle _prev_constant_pool_handle; |
1095 // If the previous version of the instanceKlass doesn't have any | 1098 // If the previous version of the InstanceKlass doesn't have any |
1096 // EMCP methods, then _prev_EMCP_methods will be NULL. Since the | 1099 // EMCP methods, then _prev_EMCP_methods will be NULL. Since the |
1097 // methods cannot be collected while we hold a handle, | 1100 // methods cannot be collected while we hold a handle, |
1098 // _prev_EMCP_methods should never have a length of zero. | 1101 // _prev_EMCP_methods should never have a length of zero. |
1099 GrowableArray<methodHandle>* _prev_EMCP_method_handles; | 1102 GrowableArray<methodHandle>* _prev_EMCP_method_handles; |
1100 | 1103 |
1133 | 1136 |
1134 // A pointer to the current info object so we can handle the deletes. | 1137 // A pointer to the current info object so we can handle the deletes. |
1135 PreviousVersionInfo * _current_p; | 1138 PreviousVersionInfo * _current_p; |
1136 | 1139 |
1137 public: | 1140 public: |
1138 PreviousVersionWalker(instanceKlass *ik); | 1141 PreviousVersionWalker(InstanceKlass *ik); |
1139 ~PreviousVersionWalker(); | 1142 ~PreviousVersionWalker(); |
1140 | 1143 |
1141 // Return the interesting information for the next previous version | 1144 // Return the interesting information for the next previous version |
1142 // of the klass. Returns NULL if there are no more previous versions. | 1145 // of the klass. Returns NULL if there are no more previous versions. |
1143 PreviousVersionInfo* next_previous_version(); | 1146 PreviousVersionInfo* next_previous_version(); |
1174 void set_next(nmethodBucket* b) { _next = b; } | 1177 void set_next(nmethodBucket* b) { _next = b; } |
1175 nmethod* get_nmethod() { return _nmethod; } | 1178 nmethod* get_nmethod() { return _nmethod; } |
1176 }; | 1179 }; |
1177 | 1180 |
1178 // An iterator that's used to access the inner classes indices in the | 1181 // An iterator that's used to access the inner classes indices in the |
1179 // instanceKlass::_inner_classes array. | 1182 // InstanceKlass::_inner_classes array. |
1180 class InnerClassesIterator : public StackObj { | 1183 class InnerClassesIterator : public StackObj { |
1181 private: | 1184 private: |
1182 typeArrayHandle _inner_classes; | 1185 Array<jushort>* _inner_classes; |
1183 int _length; | 1186 int _length; |
1184 int _idx; | 1187 int _idx; |
1185 public: | 1188 public: |
1186 | 1189 |
1187 InnerClassesIterator(instanceKlassHandle k) { | 1190 InnerClassesIterator(instanceKlassHandle k) { |
1191 // The inner class array's length should be the multiple of | 1194 // The inner class array's length should be the multiple of |
1192 // inner_class_next_offset if it only contains the InnerClasses | 1195 // inner_class_next_offset if it only contains the InnerClasses |
1193 // attribute data, or it should be | 1196 // attribute data, or it should be |
1194 // n*inner_class_next_offset+enclosing_method_attribute_size | 1197 // n*inner_class_next_offset+enclosing_method_attribute_size |
1195 // if it also contains the EnclosingMethod data. | 1198 // if it also contains the EnclosingMethod data. |
1196 assert((_length % instanceKlass::inner_class_next_offset == 0 || | 1199 assert((_length % InstanceKlass::inner_class_next_offset == 0 || |
1197 _length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size), | 1200 _length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size), |
1198 "just checking"); | 1201 "just checking"); |
1199 // Remove the enclosing_method portion if exists. | 1202 // Remove the enclosing_method portion if exists. |
1200 if (_length % instanceKlass::inner_class_next_offset == instanceKlass::enclosing_method_attribute_size) { | 1203 if (_length % InstanceKlass::inner_class_next_offset == InstanceKlass::enclosing_method_attribute_size) { |
1201 _length -= instanceKlass::enclosing_method_attribute_size; | 1204 _length -= InstanceKlass::enclosing_method_attribute_size; |
1202 } | 1205 } |
1203 } else { | 1206 } else { |
1204 _length = 0; | 1207 _length = 0; |
1205 } | 1208 } |
1206 _idx = 0; | 1209 _idx = 0; |
1209 int length() const { | 1212 int length() const { |
1210 return _length; | 1213 return _length; |
1211 } | 1214 } |
1212 | 1215 |
1213 void next() { | 1216 void next() { |
1214 _idx += instanceKlass::inner_class_next_offset; | 1217 _idx += InstanceKlass::inner_class_next_offset; |
1215 } | 1218 } |
1216 | 1219 |
1217 bool done() const { | 1220 bool done() const { |
1218 return (_idx >= _length); | 1221 return (_idx >= _length); |
1219 } | 1222 } |
1220 | 1223 |
1221 u2 inner_class_info_index() const { | 1224 u2 inner_class_info_index() const { |
1222 return _inner_classes->ushort_at( | 1225 return _inner_classes->at( |
1223 _idx + instanceKlass::inner_class_inner_class_info_offset); | 1226 _idx + InstanceKlass::inner_class_inner_class_info_offset); |
1224 } | 1227 } |
1225 | 1228 |
1226 void set_inner_class_info_index(u2 index) { | 1229 void set_inner_class_info_index(u2 index) { |
1227 _inner_classes->ushort_at_put( | 1230 _inner_classes->at_put( |
1228 _idx + instanceKlass::inner_class_inner_class_info_offset, index); | 1231 _idx + InstanceKlass::inner_class_inner_class_info_offset, index); |
1229 } | 1232 } |
1230 | 1233 |
1231 u2 outer_class_info_index() const { | 1234 u2 outer_class_info_index() const { |
1232 return _inner_classes->ushort_at( | 1235 return _inner_classes->at( |
1233 _idx + instanceKlass::inner_class_outer_class_info_offset); | 1236 _idx + InstanceKlass::inner_class_outer_class_info_offset); |
1234 } | 1237 } |
1235 | 1238 |
1236 void set_outer_class_info_index(u2 index) { | 1239 void set_outer_class_info_index(u2 index) { |
1237 _inner_classes->ushort_at_put( | 1240 _inner_classes->at_put( |
1238 _idx + instanceKlass::inner_class_outer_class_info_offset, index); | 1241 _idx + InstanceKlass::inner_class_outer_class_info_offset, index); |
1239 } | 1242 } |
1240 | 1243 |
1241 u2 inner_name_index() const { | 1244 u2 inner_name_index() const { |
1242 return _inner_classes->ushort_at( | 1245 return _inner_classes->at( |
1243 _idx + instanceKlass::inner_class_inner_name_offset); | 1246 _idx + InstanceKlass::inner_class_inner_name_offset); |
1244 } | 1247 } |
1245 | 1248 |
1246 void set_inner_name_index(u2 index) { | 1249 void set_inner_name_index(u2 index) { |
1247 _inner_classes->ushort_at_put( | 1250 _inner_classes->at_put( |
1248 _idx + instanceKlass::inner_class_inner_name_offset, index); | 1251 _idx + InstanceKlass::inner_class_inner_name_offset, index); |
1249 } | 1252 } |
1250 | 1253 |
1251 u2 inner_access_flags() const { | 1254 u2 inner_access_flags() const { |
1252 return _inner_classes->ushort_at( | 1255 return _inner_classes->at( |
1253 _idx + instanceKlass::inner_class_access_flags_offset); | 1256 _idx + InstanceKlass::inner_class_access_flags_offset); |
1254 } | 1257 } |
1255 }; | 1258 }; |
1256 | 1259 |
1257 #endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP | 1260 #endif // SHARE_VM_OOPS_INSTANCEKLASS_HPP |