Mon, 26 Apr 2010 23:59:45 -0700
6943485: JVMTI always on capabilities change code generation too much
Reviewed-by: twisti, dcubed
1 /*
2 * Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 #include "incls/_precompiled.incl"
26 #include "incls/_ciObjectFactory.cpp.incl"
28 // ciObjectFactory
29 //
30 // This class handles requests for the creation of new instances
31 // of ciObject and its subclasses. It contains a caching mechanism
32 // which ensures that for each oop, at most one ciObject is created.
33 // This invariant allows more efficient implementation of ciObject.
34 //
35 // Implementation note: the oop->ciObject mapping is represented as
36 // a table stored in an array. Even though objects are moved
37 // by the garbage collector, the compactor preserves their relative
38 // order; address comparison of oops (in perm space) is safe so long
39 // as we prohibit GC during our comparisons. We currently use binary
40 // search to find the oop in the table, and inserting a new oop
41 // into the table may be costly. If this cost ends up being
42 // problematic the underlying data structure can be switched to some
43 // sort of balanced binary tree.
45 GrowableArray<ciObject*>* ciObjectFactory::_shared_ci_objects = NULL;
46 ciSymbol* ciObjectFactory::_shared_ci_symbols[vmSymbols::SID_LIMIT];
47 int ciObjectFactory::_shared_ident_limit = 0;
48 volatile bool ciObjectFactory::_initialized = false;
51 // ------------------------------------------------------------------
52 // ciObjectFactory::ciObjectFactory
53 ciObjectFactory::ciObjectFactory(Arena* arena,
54 int expected_size) {
56 for (int i = 0; i < NON_PERM_BUCKETS; i++) {
57 _non_perm_bucket[i] = NULL;
58 }
59 _non_perm_count = 0;
61 _next_ident = _shared_ident_limit;
62 _arena = arena;
63 _ci_objects = new (arena) GrowableArray<ciObject*>(arena, expected_size, 0, NULL);
65 // If the shared ci objects exist append them to this factory's objects
67 if (_shared_ci_objects != NULL) {
68 _ci_objects->appendAll(_shared_ci_objects);
69 }
71 _unloaded_methods = new (arena) GrowableArray<ciMethod*>(arena, 4, 0, NULL);
72 _unloaded_klasses = new (arena) GrowableArray<ciKlass*>(arena, 8, 0, NULL);
73 _return_addresses =
74 new (arena) GrowableArray<ciReturnAddress*>(arena, 8, 0, NULL);
75 }
77 // ------------------------------------------------------------------
78 // ciObjectFactory::ciObjectFactory
79 void ciObjectFactory::initialize() {
80 ASSERT_IN_VM;
81 JavaThread* thread = JavaThread::current();
82 HandleMark handle_mark(thread);
84 // This Arena is long lived and exists in the resource mark of the
85 // compiler thread that initializes the initial ciObjectFactory which
86 // creates the shared ciObjects that all later ciObjectFactories use.
87 Arena* arena = new Arena();
88 ciEnv initial(arena);
89 ciEnv* env = ciEnv::current();
90 env->_factory->init_shared_objects();
92 _initialized = true;
94 }
96 void ciObjectFactory::init_shared_objects() {
98 _next_ident = 1; // start numbering CI objects at 1
100 {
101 // Create the shared symbols, but not in _shared_ci_objects.
102 int i;
103 for (i = vmSymbols::FIRST_SID; i < vmSymbols::SID_LIMIT; i++) {
104 symbolHandle sym_handle = vmSymbolHandles::symbol_handle_at((vmSymbols::SID) i);
105 assert(vmSymbols::find_sid(sym_handle()) == i, "1-1 mapping");
106 ciSymbol* sym = new (_arena) ciSymbol(sym_handle);
107 init_ident_of(sym);
108 _shared_ci_symbols[i] = sym;
109 }
110 #ifdef ASSERT
111 for (i = vmSymbols::FIRST_SID; i < vmSymbols::SID_LIMIT; i++) {
112 symbolHandle sym_handle = vmSymbolHandles::symbol_handle_at((vmSymbols::SID) i);
113 ciSymbol* sym = vm_symbol_at((vmSymbols::SID) i);
114 assert(sym->get_oop() == sym_handle(), "oop must match");
115 }
116 assert(ciSymbol::void_class_signature()->get_oop() == vmSymbols::void_class_signature(), "spot check");
117 #endif
118 }
120 _ci_objects = new (_arena) GrowableArray<ciObject*>(_arena, 64, 0, NULL);
122 for (int i = T_BOOLEAN; i <= T_CONFLICT; i++) {
123 BasicType t = (BasicType)i;
124 if (type2name(t) != NULL && t != T_OBJECT && t != T_ARRAY && t != T_NARROWOOP) {
125 ciType::_basic_types[t] = new (_arena) ciType(t);
126 init_ident_of(ciType::_basic_types[t]);
127 }
128 }
130 ciEnv::_null_object_instance = new (_arena) ciNullObject();
131 init_ident_of(ciEnv::_null_object_instance);
132 ciEnv::_method_klass_instance =
133 get(Universe::methodKlassObj())->as_method_klass();
134 ciEnv::_symbol_klass_instance =
135 get(Universe::symbolKlassObj())->as_symbol_klass();
136 ciEnv::_klass_klass_instance =
137 get(Universe::klassKlassObj())->as_klass_klass();
138 ciEnv::_instance_klass_klass_instance =
139 get(Universe::instanceKlassKlassObj())
140 ->as_instance_klass_klass();
141 ciEnv::_type_array_klass_klass_instance =
142 get(Universe::typeArrayKlassKlassObj())
143 ->as_type_array_klass_klass();
144 ciEnv::_obj_array_klass_klass_instance =
145 get(Universe::objArrayKlassKlassObj())
146 ->as_obj_array_klass_klass();
148 #define WK_KLASS_DEFN(name, ignore_s, opt) \
149 if (SystemDictionary::name() != NULL) \
150 ciEnv::_##name = get(SystemDictionary::name())->as_instance_klass();
152 WK_KLASSES_DO(WK_KLASS_DEFN)
153 #undef WK_KLASS_DEFN
155 for (int len = -1; len != _ci_objects->length(); ) {
156 len = _ci_objects->length();
157 for (int i2 = 0; i2 < len; i2++) {
158 ciObject* obj = _ci_objects->at(i2);
159 if (obj->is_loaded() && obj->is_instance_klass()) {
160 obj->as_instance_klass()->compute_nonstatic_fields();
161 }
162 }
163 }
165 ciEnv::_unloaded_cisymbol = (ciSymbol*) ciObjectFactory::get(vmSymbols::dummy_symbol_oop());
166 // Create dummy instanceKlass and objArrayKlass object and assign them idents
167 ciEnv::_unloaded_ciinstance_klass = new (_arena) ciInstanceKlass(ciEnv::_unloaded_cisymbol, NULL, NULL);
168 init_ident_of(ciEnv::_unloaded_ciinstance_klass);
169 ciEnv::_unloaded_ciobjarrayklass = new (_arena) ciObjArrayKlass(ciEnv::_unloaded_cisymbol, ciEnv::_unloaded_ciinstance_klass, 1);
170 init_ident_of(ciEnv::_unloaded_ciobjarrayklass);
171 assert(ciEnv::_unloaded_ciobjarrayklass->is_obj_array_klass(), "just checking");
173 get(Universe::boolArrayKlassObj());
174 get(Universe::charArrayKlassObj());
175 get(Universe::singleArrayKlassObj());
176 get(Universe::doubleArrayKlassObj());
177 get(Universe::byteArrayKlassObj());
178 get(Universe::shortArrayKlassObj());
179 get(Universe::intArrayKlassObj());
180 get(Universe::longArrayKlassObj());
184 assert(_non_perm_count == 0, "no shared non-perm objects");
186 // The shared_ident_limit is the first ident number that will
187 // be used for non-shared objects. That is, numbers less than
188 // this limit are permanently assigned to shared CI objects,
189 // while the higher numbers are recycled afresh by each new ciEnv.
191 _shared_ident_limit = _next_ident;
192 _shared_ci_objects = _ci_objects;
193 }
195 // ------------------------------------------------------------------
196 // ciObjectFactory::get
197 //
198 // Get the ciObject corresponding to some oop. If the ciObject has
199 // already been created, it is returned. Otherwise, a new ciObject
200 // is created.
201 ciObject* ciObjectFactory::get(oop key) {
202 ASSERT_IN_VM;
204 #ifdef ASSERT
205 if (CIObjectFactoryVerify) {
206 oop last = NULL;
207 for (int j = 0; j< _ci_objects->length(); j++) {
208 oop o = _ci_objects->at(j)->get_oop();
209 assert(last < o, "out of order");
210 last = o;
211 }
212 }
213 #endif // ASSERT
214 int len = _ci_objects->length();
215 int index = find(key, _ci_objects);
216 #ifdef ASSERT
217 if (CIObjectFactoryVerify) {
218 for (int i=0; i<_ci_objects->length(); i++) {
219 if (_ci_objects->at(i)->get_oop() == key) {
220 assert(index == i, " bad lookup");
221 }
222 }
223 }
224 #endif
225 if (!is_found_at(index, key, _ci_objects)) {
226 // Check in the non-perm area before putting it in the list.
227 NonPermObject* &bucket = find_non_perm(key);
228 if (bucket != NULL) {
229 return bucket->object();
230 }
232 // Check in the shared symbol area before putting it in the list.
233 if (key->is_symbol()) {
234 vmSymbols::SID sid = vmSymbols::find_sid((symbolOop)key);
235 if (sid != vmSymbols::NO_SID) {
236 // do not pollute the main cache with it
237 return vm_symbol_at(sid);
238 }
239 }
241 // The ciObject does not yet exist. Create it and insert it
242 // into the cache.
243 Handle keyHandle(key);
244 ciObject* new_object = create_new_object(keyHandle());
245 assert(keyHandle() == new_object->get_oop(), "must be properly recorded");
246 init_ident_of(new_object);
247 if (!new_object->is_perm()) {
248 // Not a perm-space object.
249 insert_non_perm(bucket, keyHandle(), new_object);
250 return new_object;
251 }
252 if (len != _ci_objects->length()) {
253 // creating the new object has recursively entered new objects
254 // into the table. We need to recompute our index.
255 index = find(keyHandle(), _ci_objects);
256 }
257 assert(!is_found_at(index, keyHandle(), _ci_objects), "no double insert");
258 insert(index, new_object, _ci_objects);
259 return new_object;
260 }
261 return _ci_objects->at(index);
262 }
264 // ------------------------------------------------------------------
265 // ciObjectFactory::create_new_object
266 //
267 // Create a new ciObject from an oop.
268 //
269 // Implementation note: this functionality could be virtual behavior
270 // of the oop itself. For now, we explicitly marshal the object.
271 ciObject* ciObjectFactory::create_new_object(oop o) {
272 EXCEPTION_CONTEXT;
274 if (o->is_symbol()) {
275 symbolHandle h_o(THREAD, (symbolOop)o);
276 return new (arena()) ciSymbol(h_o);
277 } else if (o->is_klass()) {
278 KlassHandle h_k(THREAD, (klassOop)o);
279 Klass* k = ((klassOop)o)->klass_part();
280 if (k->oop_is_instance()) {
281 return new (arena()) ciInstanceKlass(h_k);
282 } else if (k->oop_is_objArray()) {
283 return new (arena()) ciObjArrayKlass(h_k);
284 } else if (k->oop_is_typeArray()) {
285 return new (arena()) ciTypeArrayKlass(h_k);
286 } else if (k->oop_is_method()) {
287 return new (arena()) ciMethodKlass(h_k);
288 } else if (k->oop_is_symbol()) {
289 return new (arena()) ciSymbolKlass(h_k);
290 } else if (k->oop_is_klass()) {
291 if (k->oop_is_objArrayKlass()) {
292 return new (arena()) ciObjArrayKlassKlass(h_k);
293 } else if (k->oop_is_typeArrayKlass()) {
294 return new (arena()) ciTypeArrayKlassKlass(h_k);
295 } else if (k->oop_is_instanceKlass()) {
296 return new (arena()) ciInstanceKlassKlass(h_k);
297 } else {
298 assert(o == Universe::klassKlassObj(), "bad klassKlass");
299 return new (arena()) ciKlassKlass(h_k);
300 }
301 }
302 } else if (o->is_method()) {
303 methodHandle h_m(THREAD, (methodOop)o);
304 return new (arena()) ciMethod(h_m);
305 } else if (o->is_methodData()) {
306 methodDataHandle h_md(THREAD, (methodDataOop)o);
307 return new (arena()) ciMethodData(h_md);
308 } else if (o->is_instance()) {
309 instanceHandle h_i(THREAD, (instanceOop)o);
310 if (java_dyn_CallSite::is_instance(o))
311 return new (arena()) ciCallSite(h_i);
312 else if (java_dyn_MethodHandle::is_instance(o))
313 return new (arena()) ciMethodHandle(h_i);
314 else
315 return new (arena()) ciInstance(h_i);
316 } else if (o->is_objArray()) {
317 objArrayHandle h_oa(THREAD, (objArrayOop)o);
318 return new (arena()) ciObjArray(h_oa);
319 } else if (o->is_typeArray()) {
320 typeArrayHandle h_ta(THREAD, (typeArrayOop)o);
321 return new (arena()) ciTypeArray(h_ta);
322 } else if (o->is_constantPoolCache()) {
323 constantPoolCacheHandle h_cpc(THREAD, (constantPoolCacheOop) o);
324 return new (arena()) ciCPCache(h_cpc);
325 }
327 // The oop is of some type not supported by the compiler interface.
328 ShouldNotReachHere();
329 return NULL;
330 }
332 //------------------------------------------------------------------
333 // ciObjectFactory::get_unloaded_method
334 //
335 // Get the ciMethod representing an unloaded/unfound method.
336 //
337 // Implementation note: unloaded methods are currently stored in
338 // an unordered array, requiring a linear-time lookup for each
339 // unloaded method. This may need to change.
340 ciMethod* ciObjectFactory::get_unloaded_method(ciInstanceKlass* holder,
341 ciSymbol* name,
342 ciSymbol* signature) {
343 for (int i=0; i<_unloaded_methods->length(); i++) {
344 ciMethod* entry = _unloaded_methods->at(i);
345 if (entry->holder()->equals(holder) &&
346 entry->name()->equals(name) &&
347 entry->signature()->as_symbol()->equals(signature)) {
348 // We've found a match.
349 return entry;
350 }
351 }
353 // This is a new unloaded method. Create it and stick it in
354 // the cache.
355 ciMethod* new_method = new (arena()) ciMethod(holder, name, signature);
357 init_ident_of(new_method);
358 _unloaded_methods->append(new_method);
360 return new_method;
361 }
363 //------------------------------------------------------------------
364 // ciObjectFactory::get_unloaded_klass
365 //
366 // Get a ciKlass representing an unloaded klass.
367 //
368 // Implementation note: unloaded klasses are currently stored in
369 // an unordered array, requiring a linear-time lookup for each
370 // unloaded klass. This may need to change.
371 ciKlass* ciObjectFactory::get_unloaded_klass(ciKlass* accessing_klass,
372 ciSymbol* name,
373 bool create_if_not_found) {
374 EXCEPTION_CONTEXT;
375 oop loader = NULL;
376 oop domain = NULL;
377 if (accessing_klass != NULL) {
378 loader = accessing_klass->loader();
379 domain = accessing_klass->protection_domain();
380 }
381 for (int i=0; i<_unloaded_klasses->length(); i++) {
382 ciKlass* entry = _unloaded_klasses->at(i);
383 if (entry->name()->equals(name) &&
384 entry->loader() == loader &&
385 entry->protection_domain() == domain) {
386 // We've found a match.
387 return entry;
388 }
389 }
391 if (!create_if_not_found)
392 return NULL;
394 // This is a new unloaded klass. Create it and stick it in
395 // the cache.
396 ciKlass* new_klass = NULL;
398 // Two cases: this is an unloaded objArrayKlass or an
399 // unloaded instanceKlass. Deal with both.
400 if (name->byte_at(0) == '[') {
401 // Decompose the name.'
402 jint dimension = 0;
403 symbolOop element_name = NULL;
404 BasicType element_type= FieldType::get_array_info(name->get_symbolOop(),
405 &dimension,
406 &element_name,
407 THREAD);
408 if (HAS_PENDING_EXCEPTION) {
409 CLEAR_PENDING_EXCEPTION;
410 CURRENT_THREAD_ENV->record_out_of_memory_failure();
411 return ciEnv::_unloaded_ciobjarrayklass;
412 }
413 assert(element_type != T_ARRAY, "unsuccessful decomposition");
414 ciKlass* element_klass = NULL;
415 if (element_type == T_OBJECT) {
416 ciEnv *env = CURRENT_THREAD_ENV;
417 ciSymbol* ci_name = env->get_object(element_name)->as_symbol();
418 element_klass =
419 env->get_klass_by_name(accessing_klass, ci_name, false)->as_instance_klass();
420 } else {
421 assert(dimension > 1, "one dimensional type arrays are always loaded.");
423 // The type array itself takes care of one of the dimensions.
424 dimension--;
426 // The element klass is a typeArrayKlass.
427 element_klass = ciTypeArrayKlass::make(element_type);
428 }
429 new_klass = new (arena()) ciObjArrayKlass(name, element_klass, dimension);
430 } else {
431 jobject loader_handle = NULL;
432 jobject domain_handle = NULL;
433 if (accessing_klass != NULL) {
434 loader_handle = accessing_klass->loader_handle();
435 domain_handle = accessing_klass->protection_domain_handle();
436 }
437 new_klass = new (arena()) ciInstanceKlass(name, loader_handle, domain_handle);
438 }
439 init_ident_of(new_klass);
440 _unloaded_klasses->append(new_klass);
442 return new_klass;
443 }
445 //------------------------------------------------------------------
446 // ciObjectFactory::get_empty_methodData
447 //
448 // Get the ciMethodData representing the methodData for a method with
449 // none.
450 ciMethodData* ciObjectFactory::get_empty_methodData() {
451 ciMethodData* new_methodData = new (arena()) ciMethodData();
452 init_ident_of(new_methodData);
453 return new_methodData;
454 }
456 //------------------------------------------------------------------
457 // ciObjectFactory::get_return_address
458 //
459 // Get a ciReturnAddress for a specified bci.
460 ciReturnAddress* ciObjectFactory::get_return_address(int bci) {
461 for (int i=0; i<_return_addresses->length(); i++) {
462 ciReturnAddress* entry = _return_addresses->at(i);
463 if (entry->bci() == bci) {
464 // We've found a match.
465 return entry;
466 }
467 }
469 ciReturnAddress* new_ret_addr = new (arena()) ciReturnAddress(bci);
470 init_ident_of(new_ret_addr);
471 _return_addresses->append(new_ret_addr);
472 return new_ret_addr;
473 }
475 // ------------------------------------------------------------------
476 // ciObjectFactory::init_ident_of
477 void ciObjectFactory::init_ident_of(ciObject* obj) {
478 obj->set_ident(_next_ident++);
479 }
482 // ------------------------------------------------------------------
483 // ciObjectFactory::find
484 //
485 // Use binary search to find the position of this oop in the cache.
486 // If there is no entry in the cache corresponding to this oop, return
487 // the position at which the oop should be inserted.
488 int ciObjectFactory::find(oop key, GrowableArray<ciObject*>* objects) {
489 int min = 0;
490 int max = objects->length()-1;
492 // print_contents();
494 while (max >= min) {
495 int mid = (max + min) / 2;
496 oop value = objects->at(mid)->get_oop();
497 if (value < key) {
498 min = mid + 1;
499 } else if (value > key) {
500 max = mid - 1;
501 } else {
502 return mid;
503 }
504 }
505 return min;
506 }
508 // ------------------------------------------------------------------
509 // ciObjectFactory::is_found_at
510 //
511 // Verify that the binary seach found the given key.
512 bool ciObjectFactory::is_found_at(int index, oop key, GrowableArray<ciObject*>* objects) {
513 return (index < objects->length() &&
514 objects->at(index)->get_oop() == key);
515 }
518 // ------------------------------------------------------------------
519 // ciObjectFactory::insert
520 //
521 // Insert a ciObject into the table at some index.
522 void ciObjectFactory::insert(int index, ciObject* obj, GrowableArray<ciObject*>* objects) {
523 int len = objects->length();
524 if (len == index) {
525 objects->append(obj);
526 } else {
527 objects->append(objects->at(len-1));
528 int pos;
529 for (pos = len-2; pos >= index; pos--) {
530 objects->at_put(pos+1,objects->at(pos));
531 }
532 objects->at_put(index, obj);
533 }
534 #ifdef ASSERT
535 if (CIObjectFactoryVerify) {
536 oop last = NULL;
537 for (int j = 0; j< objects->length(); j++) {
538 oop o = objects->at(j)->get_oop();
539 assert(last < o, "out of order");
540 last = o;
541 }
542 }
543 #endif // ASSERT
544 }
546 static ciObjectFactory::NonPermObject* emptyBucket = NULL;
548 // ------------------------------------------------------------------
549 // ciObjectFactory::find_non_perm
550 //
551 // Use a small hash table, hashed on the klass of the key.
552 // If there is no entry in the cache corresponding to this oop, return
553 // the null tail of the bucket into which the oop should be inserted.
554 ciObjectFactory::NonPermObject* &ciObjectFactory::find_non_perm(oop key) {
555 // Be careful: is_perm might change from false to true.
556 // Thus, there might be a matching perm object in the table.
557 // If there is, this probe must find it.
558 if (key->is_perm() && _non_perm_count == 0) {
559 return emptyBucket;
560 } else if (key->is_instance()) {
561 if (key->klass() == SystemDictionary::Class_klass()) {
562 // class mirror instances are always perm
563 return emptyBucket;
564 }
565 // fall through to probe
566 } else if (key->is_array()) {
567 // fall through to probe
568 } else {
569 // not an array or instance
570 return emptyBucket;
571 }
573 ciObject* klass = get(key->klass());
574 NonPermObject* *bp = &_non_perm_bucket[(unsigned) klass->hash() % NON_PERM_BUCKETS];
575 for (NonPermObject* p; (p = (*bp)) != NULL; bp = &p->next()) {
576 if (is_equal(p, key)) break;
577 }
578 return (*bp);
579 }
583 // ------------------------------------------------------------------
584 // Code for for NonPermObject
585 //
586 inline ciObjectFactory::NonPermObject::NonPermObject(ciObjectFactory::NonPermObject* &bucket, oop key, ciObject* object) {
587 assert(ciObjectFactory::is_initialized(), "");
588 _object = object;
589 _next = bucket;
590 bucket = this;
591 }
595 // ------------------------------------------------------------------
596 // ciObjectFactory::insert_non_perm
597 //
598 // Insert a ciObject into the non-perm table.
599 void ciObjectFactory::insert_non_perm(ciObjectFactory::NonPermObject* &where, oop key, ciObject* obj) {
600 assert(&where != &emptyBucket, "must not try to fill empty bucket");
601 NonPermObject* p = new (arena()) NonPermObject(where, key, obj);
602 assert(where == p && is_equal(p, key) && p->object() == obj, "entry must match");
603 assert(find_non_perm(key) == p, "must find the same spot");
604 ++_non_perm_count;
605 }
607 // ------------------------------------------------------------------
608 // ciObjectFactory::vm_symbol_at
609 // Get the ciSymbol corresponding to some index in vmSymbols.
610 ciSymbol* ciObjectFactory::vm_symbol_at(int index) {
611 assert(index >= vmSymbols::FIRST_SID && index < vmSymbols::SID_LIMIT, "oob");
612 return _shared_ci_symbols[index];
613 }
615 // ------------------------------------------------------------------
616 // ciObjectFactory::print_contents_impl
617 void ciObjectFactory::print_contents_impl() {
618 int len = _ci_objects->length();
619 tty->print_cr("ciObjectFactory (%d) oop contents:", len);
620 for (int i=0; i<len; i++) {
621 _ci_objects->at(i)->print();
622 tty->cr();
623 }
624 }
626 // ------------------------------------------------------------------
627 // ciObjectFactory::print_contents
628 void ciObjectFactory::print_contents() {
629 print();
630 tty->cr();
631 GUARDED_VM_ENTRY(print_contents_impl();)
632 }
634 // ------------------------------------------------------------------
635 // ciObjectFactory::print
636 //
637 // Print debugging information about the object factory
638 void ciObjectFactory::print() {
639 tty->print("<ciObjectFactory oops=%d unloaded_methods=%d unloaded_klasses=%d>",
640 _ci_objects->length(), _unloaded_methods->length(),
641 _unloaded_klasses->length());
642 }