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comparison src/share/vm/ci/ciEnv.hpp @ 6725:da91efe96a93

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6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents 7f813940ac35
children 137868b7aa6f
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
76 bool _dtrace_method_probes; 76 bool _dtrace_method_probes;
77 bool _dtrace_alloc_probes; 77 bool _dtrace_alloc_probes;
78 78
79 // Distinguished instances of certain ciObjects.. 79 // Distinguished instances of certain ciObjects..
80 static ciObject* _null_object_instance; 80 static ciObject* _null_object_instance;
81 static ciMethodKlass* _method_klass_instance;
82 static ciKlassKlass* _klass_klass_instance;
83 static ciInstanceKlassKlass* _instance_klass_klass_instance;
84 static ciTypeArrayKlassKlass* _type_array_klass_klass_instance;
85 static ciObjArrayKlassKlass* _obj_array_klass_klass_instance;
86 81
87 #define WK_KLASS_DECL(name, ignore_s, ignore_o) static ciInstanceKlass* _##name; 82 #define WK_KLASS_DECL(name, ignore_s, ignore_o) static ciInstanceKlass* _##name;
88 WK_KLASSES_DO(WK_KLASS_DECL) 83 WK_KLASSES_DO(WK_KLASS_DECL)
89 #undef WK_KLASS_DECL 84 #undef WK_KLASS_DECL
90 85
153 int method_index, Bytecodes::Code bc, 148 int method_index, Bytecodes::Code bc,
154 ciInstanceKlass* loading_klass); 149 ciInstanceKlass* loading_klass);
155 150
156 // Helper methods 151 // Helper methods
157 bool check_klass_accessibility(ciKlass* accessing_klass, 152 bool check_klass_accessibility(ciKlass* accessing_klass,
158 klassOop resolved_klassOop); 153 Klass* resolved_klass);
159 methodOop lookup_method(instanceKlass* accessor, 154 Method* lookup_method(InstanceKlass* accessor,
160 instanceKlass* holder, 155 InstanceKlass* holder,
161 Symbol* name, 156 Symbol* name,
162 Symbol* sig, 157 Symbol* sig,
163 Bytecodes::Code bc); 158 Bytecodes::Code bc);
164 159
165 // Get a ciObject from the object factory. Ensures uniqueness 160 // Get a ciObject from the object factory. Ensures uniqueness
179 } else { 174 } else {
180 return _factory->get_symbol(o); 175 return _factory->get_symbol(o);
181 } 176 }
182 } 177 }
183 178
184 ciMethod* get_method_from_handle(jobject method); 179 ciMetadata* get_metadata(Metadata* o) {
180 if (o == NULL) {
181 return NULL;
182 } else {
183 return _factory->get_metadata(o);
184 }
185 }
186
187 ciInstance* get_instance(oop o) {
188 if (o == NULL) return NULL;
189 return get_object(o)->as_instance();
190 }
191 ciObjArrayKlass* get_obj_array_klass(Klass* o) {
192 if (o == NULL) return NULL;
193 return get_metadata(o)->as_obj_array_klass();
194 }
195 ciTypeArrayKlass* get_type_array_klass(Klass* o) {
196 if (o == NULL) return NULL;
197 return get_metadata(o)->as_type_array_klass();
198 }
199 ciKlass* get_klass(Klass* o) {
200 if (o == NULL) return NULL;
201 return get_metadata(o)->as_klass();
202 }
203 ciInstanceKlass* get_instance_klass(Klass* o) {
204 if (o == NULL) return NULL;
205 return get_metadata(o)->as_instance_klass();
206 }
207 ciMethod* get_method(Method* o) {
208 if (o == NULL) return NULL;
209 return get_metadata(o)->as_method();
210 }
211 ciMethodData* get_method_data(MethodData* o) {
212 if (o == NULL) return NULL;
213 return get_metadata(o)->as_method_data();
214 }
215
216 ciMethod* get_method_from_handle(Method* method);
185 217
186 ciInstance* get_or_create_exception(jobject& handle, Symbol* name); 218 ciInstance* get_or_create_exception(jobject& handle, Symbol* name);
187 219
188 // Get a ciMethod representing either an unfound method or 220 // Get a ciMethod representing either an unfound method or
189 // a method with an unloaded holder. Ensures uniqueness of 221 // a method with an unloaded holder. Ensures uniqueness of
370 402
371 ciKlass* find_system_klass(ciSymbol* klass_name); 403 ciKlass* find_system_klass(ciSymbol* klass_name);
372 // Note: To find a class from its name string, use ciSymbol::make, 404 // Note: To find a class from its name string, use ciSymbol::make,
373 // but consider adding to vmSymbols.hpp instead. 405 // but consider adding to vmSymbols.hpp instead.
374 406
375 // Use this to make a holder for non-perm compile time constants.
376 // The resulting array is guaranteed to satisfy "can_be_constant".
377 ciArray* make_system_array(GrowableArray<ciObject*>* objects);
378
379 // converts the ciKlass* representing the holder of a method into a 407 // converts the ciKlass* representing the holder of a method into a
380 // ciInstanceKlass*. This is needed since the holder of a method in 408 // ciInstanceKlass*. This is needed since the holder of a method in
381 // the bytecodes could be an array type. Basically this converts 409 // the bytecodes could be an array type. Basically this converts
382 // array types into java/lang/Object and other types stay as they are. 410 // array types into java/lang/Object and other types stay as they are.
383 static ciInstanceKlass* get_instance_klass_for_declared_method_holder(ciKlass* klass); 411 static ciInstanceKlass* get_instance_klass_for_declared_method_holder(ciKlass* klass);
414 bool system_dictionary_modification_counter_changed(); 442 bool system_dictionary_modification_counter_changed();
415 443
416 void record_failure(const char* reason); 444 void record_failure(const char* reason);
417 void record_method_not_compilable(const char* reason, bool all_tiers = true); 445 void record_method_not_compilable(const char* reason, bool all_tiers = true);
418 void record_out_of_memory_failure(); 446 void record_out_of_memory_failure();
447
448 // RedefineClasses support
449 void metadata_do(void f(Metadata*)) { _factory->metadata_do(f); }
419 }; 450 };
420 451
421 #endif // SHARE_VM_CI_CIENV_HPP 452 #endif // SHARE_VM_CI_CIENV_HPP