1 /*
2 * Copyright (c) 1999, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "ci/ciField.hpp"
27 #include "ci/ciInstance.hpp"
28 #include "ci/ciInstanceKlass.hpp"
29 #include "ci/ciUtilities.hpp"
30 #include "classfile/systemDictionary.hpp"
31 #include "memory/allocation.hpp"
32 #include "memory/allocation.inline.hpp"
33 #include "oops/oop.inline.hpp"
34 #include "oops/fieldStreams.hpp"
35 #include "runtime/fieldDescriptor.hpp"
36
37 // ciInstanceKlass
38 //
39 // This class represents a Klass* in the HotSpot virtual machine
40 // whose Klass part in an InstanceKlass.
41
42 // ------------------------------------------------------------------
43 // ciInstanceKlass::ciInstanceKlass
44 //
45 // Loaded instance klass.
46 ciInstanceKlass::ciInstanceKlass(KlassHandle h_k) :
47 ciKlass(h_k)
48 {
49 assert(get_Klass()->is_instance_klass(), "wrong type");
50 assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
51 InstanceKlass* ik = get_instanceKlass();
52
53 AccessFlags access_flags = ik->access_flags();
54 _flags = ciFlags(access_flags);
55 _has_finalizer = access_flags.has_finalizer();
56 _has_subklass = ik->subklass() != NULL;
57 _init_state = ik->init_state();
58 _nonstatic_field_size = ik->nonstatic_field_size();
59 _has_nonstatic_fields = ik->has_nonstatic_fields();
60 _has_default_methods = ik->has_default_methods();
61 _is_anonymous = ik->is_anonymous();
62 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields:
63 _has_injected_fields = -1;
64 _implementor = NULL; // we will fill these lazily
65
66 Thread *thread = Thread::current();
67 if (ciObjectFactory::is_initialized()) {
68 _loader = JNIHandles::make_local(thread, ik->class_loader());
69 _protection_domain = JNIHandles::make_local(thread,
70 ik->protection_domain());
71 _is_shared = false;
72 } else {
73 Handle h_loader(thread, ik->class_loader());
74 Handle h_protection_domain(thread, ik->protection_domain());
75 _loader = JNIHandles::make_global(h_loader);
76 _protection_domain = JNIHandles::make_global(h_protection_domain);
77 _is_shared = true;
78 }
79
80 // Lazy fields get filled in only upon request.
81 _super = NULL;
82 _java_mirror = NULL;
83
84 if (is_shared()) {
85 if (h_k() != SystemDictionary::Object_klass()) {
86 super();
87 }
88 //compute_nonstatic_fields(); // done outside of constructor
89 }
90
91 _field_cache = NULL;
92 }
93
94 // Version for unloaded classes:
95 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
96 jobject loader, jobject protection_domain)
97 : ciKlass(name, T_OBJECT)
98 {
99 assert(name->byte_at(0) != '[', "not an instance klass");
100 _init_state = (InstanceKlass::ClassState)0;
101 _nonstatic_field_size = -1;
102 _has_nonstatic_fields = false;
103 _nonstatic_fields = NULL;
104 _has_injected_fields = -1;
105 _is_anonymous = false;
106 _loader = loader;
107 _protection_domain = protection_domain;
108 _is_shared = false;
109 _super = NULL;
110 _java_mirror = NULL;
111 _field_cache = NULL;
112 }
113
114
115
116 // ------------------------------------------------------------------
117 // ciInstanceKlass::compute_shared_is_initialized
118 void ciInstanceKlass::compute_shared_init_state() {
119 GUARDED_VM_ENTRY(
120 InstanceKlass* ik = get_instanceKlass();
121 _init_state = ik->init_state();
122 )
123 }
124
125 // ------------------------------------------------------------------
126 // ciInstanceKlass::compute_shared_has_subklass
127 bool ciInstanceKlass::compute_shared_has_subklass() {
128 GUARDED_VM_ENTRY(
129 InstanceKlass* ik = get_instanceKlass();
130 _has_subklass = ik->subklass() != NULL;
131 return _has_subklass;
132 )
133 }
134
135 // ------------------------------------------------------------------
136 // ciInstanceKlass::loader
137 oop ciInstanceKlass::loader() {
138 ASSERT_IN_VM;
139 return JNIHandles::resolve(_loader);
140 }
141
142 // ------------------------------------------------------------------
143 // ciInstanceKlass::loader_handle
144 jobject ciInstanceKlass::loader_handle() {
145 return _loader;
146 }
147
148 // ------------------------------------------------------------------
149 // ciInstanceKlass::protection_domain
150 oop ciInstanceKlass::protection_domain() {
151 ASSERT_IN_VM;
152 return JNIHandles::resolve(_protection_domain);
153 }
154
155 // ------------------------------------------------------------------
156 // ciInstanceKlass::protection_domain_handle
157 jobject ciInstanceKlass::protection_domain_handle() {
158 return _protection_domain;
159 }
160
161 // ------------------------------------------------------------------
162 // ciInstanceKlass::field_cache
163 //
164 // Get the field cache associated with this klass.
165 ciConstantPoolCache* ciInstanceKlass::field_cache() {
166 if (is_shared()) {
167 return NULL;
168 }
169 if (_field_cache == NULL) {
170 assert(!is_java_lang_Object(), "Object has no fields");
171 Arena* arena = CURRENT_ENV->arena();
172 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
173 }
174 return _field_cache;
175 }
176
177 // ------------------------------------------------------------------
178 // ciInstanceKlass::get_canonical_holder
179 //
180 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
181 #ifdef ASSERT
182 if (!(offset >= 0 && offset < layout_helper())) {
183 tty->print("*** get_canonical_holder(%d) on ", offset);
184 this->print();
185 tty->print_cr(" ***");
186 };
187 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
188 #endif
189
190 if (offset < instanceOopDesc::base_offset_in_bytes()) {
191 // All header offsets belong properly to java/lang/Object.
192 return CURRENT_ENV->Object_klass();
193 }
194
195 ciInstanceKlass* self = this;
196 for (;;) {
197 assert(self->is_loaded(), "must be loaded to have size");
198 ciInstanceKlass* super = self->super();
199 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
200 !super->contains_field_offset(offset)) {
201 return self;
202 } else {
203 self = super; // return super->get_canonical_holder(offset)
204 }
205 }
206 }
207
208 // ------------------------------------------------------------------
209 // ciInstanceKlass::is_java_lang_Object
210 //
211 // Is this klass java.lang.Object?
212 bool ciInstanceKlass::is_java_lang_Object() const {
213 return equals(CURRENT_ENV->Object_klass());
214 }
215
216 // ------------------------------------------------------------------
217 // ciInstanceKlass::uses_default_loader
218 bool ciInstanceKlass::uses_default_loader() const {
219 // Note: We do not need to resolve the handle or enter the VM
220 // in order to test null-ness.
221 return _loader == NULL;
222 }
223
224 // ------------------------------------------------------------------
225
226 /**
227 * Return basic type of boxed value for box klass or T_OBJECT if not.
228 */
229 BasicType ciInstanceKlass::box_klass_type() const {
230 if (uses_default_loader() && is_loaded()) {
231 return SystemDictionary::box_klass_type(get_Klass());
232 } else {
233 return T_OBJECT;
234 }
235 }
236
237 /**
238 * Is this boxing klass?
239 */
240 bool ciInstanceKlass::is_box_klass() const {
241 return is_java_primitive(box_klass_type());
242 }
243
244 /**
245 * Is this boxed value offset?
246 */
247 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
248 BasicType bt = box_klass_type();
249 return is_java_primitive(bt) &&
250 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
251 }
252
253 // ------------------------------------------------------------------
254 // ciInstanceKlass::is_in_package
255 //
256 // Is this klass in the given package?
257 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
258 // To avoid class loader mischief, this test always rejects application classes.
259 if (!uses_default_loader())
260 return false;
261 GUARDED_VM_ENTRY(
262 return is_in_package_impl(packagename, len);
263 )
264 }
265
266 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
267 ASSERT_IN_VM;
268
269 // If packagename contains trailing '/' exclude it from the
270 // prefix-test since we test for it explicitly.
271 if (packagename[len - 1] == '/')
272 len--;
273
274 if (!name()->starts_with(packagename, len))
275 return false;
276
277 // Test if the class name is something like "java/lang".
278 if ((len + 1) > name()->utf8_length())
279 return false;
280
281 // Test for trailing '/'
282 if ((char) name()->byte_at(len) != '/')
283 return false;
284
285 // Make sure it's not actually in a subpackage:
286 if (name()->index_of_at(len+1, "/", 1) >= 0)
287 return false;
288
289 return true;
290 }
291
292 // ------------------------------------------------------------------
293 // ciInstanceKlass::print_impl
294 //
295 // Implementation of the print method.
296 void ciInstanceKlass::print_impl(outputStream* st) {
297 ciKlass::print_impl(st);
298 GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
299 if (is_loaded()) {
300 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
301 bool_to_str(is_initialized()),
302 bool_to_str(has_finalizer()),
303 bool_to_str(has_subklass()),
304 layout_helper());
305
306 _flags.print_klass_flags();
307
308 if (_super) {
309 st->print(" super=");
310 _super->print_name();
311 }
312 if (_java_mirror) {
313 st->print(" mirror=PRESENT");
314 }
315 } else {
316 st->print(" loaded=false");
317 }
318 }
319
320 // ------------------------------------------------------------------
321 // ciInstanceKlass::super
322 //
323 // Get the superklass of this klass.
324 ciInstanceKlass* ciInstanceKlass::super() {
325 assert(is_loaded(), "must be loaded");
326 if (_super == NULL && !is_java_lang_Object()) {
327 GUARDED_VM_ENTRY(
328 Klass* super_klass = get_instanceKlass()->super();
329 _super = CURRENT_ENV->get_instance_klass(super_klass);
330 )
331 }
332 return _super;
333 }
334
335 // ------------------------------------------------------------------
336 // ciInstanceKlass::java_mirror
337 //
338 // Get the instance of java.lang.Class corresponding to this klass.
339 // Cache it on this->_java_mirror.
340 ciInstance* ciInstanceKlass::java_mirror() {
341 if (is_shared()) {
342 return ciKlass::java_mirror();
343 }
344 if (_java_mirror == NULL) {
345 _java_mirror = ciKlass::java_mirror();
346 }
347 return _java_mirror;
348 }
349
350 // ------------------------------------------------------------------
351 // ciInstanceKlass::unique_concrete_subklass
352 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
353 if (!is_loaded()) return NULL; // No change if class is not loaded
354 if (!is_abstract()) return NULL; // Only applies to abstract classes.
355 if (!has_subklass()) return NULL; // Must have at least one subklass.
356 VM_ENTRY_MARK;
357 InstanceKlass* ik = get_instanceKlass();
358 Klass* up = ik->up_cast_abstract();
359 assert(up->is_instance_klass(), "must be InstanceKlass");
360 if (ik == up) {
361 return NULL;
362 }
363 return CURRENT_THREAD_ENV->get_instance_klass(up);
364 }
365
366 // ------------------------------------------------------------------
367 // ciInstanceKlass::has_finalizable_subclass
368 bool ciInstanceKlass::has_finalizable_subclass() {
369 if (!is_loaded()) return true;
370 VM_ENTRY_MARK;
371 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
372 }
373
374 // ------------------------------------------------------------------
375 // ciInstanceKlass::get_field_by_offset
376 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
377 if (!is_static) {
378 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
379 ciField* field = _nonstatic_fields->at(i);
380 int field_off = field->offset_in_bytes();
381 if (field_off == field_offset)
382 return field;
383 if (field_off > field_offset)
384 break;
385 // could do binary search or check bins, but probably not worth it
386 }
387 return NULL;
388 }
389 VM_ENTRY_MARK;
390 InstanceKlass* k = get_instanceKlass();
391 fieldDescriptor fd;
392 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
393 return NULL;
394 }
395 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
396 return field;
397 }
398
399 // ------------------------------------------------------------------
400 // ciInstanceKlass::get_field_type_by_offset
401 ciType* ciInstanceKlass::get_field_type_by_offset(int field_offset) {
402 ASSERT_IN_VM;
403 fieldDescriptor fd;
404 InstanceKlass* klass = get_instanceKlass();
405 // Important: We cannot get the field type via get_field_by_offset() because if the field
406 // is another value type, the offset would refer to the first field of that value type due
407 // to flattening. Instead, do a SystemDictionary lookup for the type of the declared field.
408 bool found = klass->find_field_from_offset(field_offset, false, &fd);
409 assert(found, "field not found");
410 BasicType field_type = fd.field_type();
411 if (is_java_primitive(field_type)) {
412 // Primitive type
413 return ciType::make(field_type);
414 } else {
415 // Do a SystemDictionary lookup for the type
416 ciEnv* env = CURRENT_ENV;
417 ciSymbol* signature = env->get_symbol(fd.signature());
418 return env->get_klass_by_name_impl(this, constantPoolHandle(), signature, false);
419 }
420 }
421
422 // ------------------------------------------------------------------
423 // ciInstanceKlass::get_field_by_name
424 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
425 VM_ENTRY_MARK;
426 InstanceKlass* k = get_instanceKlass();
427 fieldDescriptor fd;
428 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
429 if (def == NULL) {
430 return NULL;
431 }
432 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
433 return field;
434 }
435
436
437 static int sort_field_by_offset(ciField** a, ciField** b) {
438 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
439 // (no worries about 32-bit overflow...)
440 }
441
442 // ------------------------------------------------------------------
443 // ciInstanceKlass::compute_nonstatic_fields
444 int ciInstanceKlass::compute_nonstatic_fields() {
445 assert(is_loaded(), "must be loaded");
446
447 if (_nonstatic_fields != NULL)
448 return _nonstatic_fields->length();
449
450 if (!has_nonstatic_fields()) {
451 Arena* arena = CURRENT_ENV->arena();
452 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
453 return 0;
454 }
455 assert(!is_java_lang_Object(), "bootstrap OK");
456
457 // Size in bytes of my fields, including inherited fields.
458 int fsize = nonstatic_field_size() * heapOopSize;
459
460 ciInstanceKlass* super = this->super();
461 GrowableArray<ciField*>* super_fields = NULL;
462 if (super != NULL && super->has_nonstatic_fields()) {
463 int super_fsize = super->nonstatic_field_size() * heapOopSize;
464 int super_flen = super->nof_nonstatic_fields();
465 super_fields = super->_nonstatic_fields;
466 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
467 // See if I am no larger than my super; if so, I can use his fields.
468 if (fsize == super_fsize) {
469 _nonstatic_fields = super_fields;
470 return super_fields->length();
471 }
472 }
473
474 GrowableArray<ciField*>* fields = NULL;
475 GUARDED_VM_ENTRY({
476 fields = compute_nonstatic_fields_impl(super_fields);
477 });
478
479 if (fields == NULL) {
480 // This can happen if this class (java.lang.Class) has invisible fields.
481 if (super_fields != NULL) {
482 _nonstatic_fields = super_fields;
483 return super_fields->length();
484 } else {
485 return 0;
486 }
487 }
488
489 int flen = fields->length();
490
491 // Now sort them by offset, ascending.
492 // (In principle, they could mix with superclass fields.)
493 fields->sort(sort_field_by_offset);
494 _nonstatic_fields = fields;
495 return flen;
496 }
497
498 GrowableArray<ciField*>*
499 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
500 super_fields) {
501 ASSERT_IN_VM;
502 Arena* arena = CURRENT_ENV->arena();
503 int flen = 0;
504 GrowableArray<ciField*>* fields = NULL;
505 InstanceKlass* k = get_instanceKlass();
506 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
507 if (fs.access_flags().is_static()) continue;
508 flen += 1;
509 }
510
511 // allocate the array:
512 if (flen == 0) {
513 return NULL; // return nothing if none are locally declared
514 }
515 if (super_fields != NULL) {
516 flen += super_fields->length();
517 }
518 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
519 if (super_fields != NULL) {
520 fields->appendAll(super_fields);
521 }
522
523 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
524 if (fs.access_flags().is_static()) continue;
525 fieldDescriptor& fd = fs.field_descriptor();
526 if (fd.field_type() == T_VALUETYPE) {
527 // Value type fields are embedded
528 int field_offset = fd.offset();
529 // Get ValueKlass and adjust number of fields
530 ciValueKlass* vk = get_field_type_by_offset(field_offset)->as_value_klass();
531 flen += vk->get_field_count() - 1;
532 // Iterate over fields of flattened value type and copy them to 'this'
533 for (int i = 0; i < vk->nof_nonstatic_fields(); ++i) {
534 ciField* flattened_field = vk->nonstatic_field_at(i);
535 // Adjust offset to account for missing oop header
536 int offset = field_offset + (flattened_field->offset() - vk->get_first_field_offset());
537 bool is_final = is_valuetype(); // flattened fields are final if holder is a value type
538 ciField* field = new (arena) ciField(flattened_field, this, offset, is_final);
539 fields->append(field);
540 }
541 } else {
542 ciField* field = new (arena) ciField(&fd);
543 fields->append(field);
544 }
545 }
546 assert(fields->length() == flen, "sanity");
547 return fields;
548 }
549
550 bool ciInstanceKlass::compute_injected_fields_helper() {
551 ASSERT_IN_VM;
552 InstanceKlass* k = get_instanceKlass();
553
554 for (InternalFieldStream fs(k); !fs.done(); fs.next()) {
555 if (fs.access_flags().is_static()) continue;
556 return true;
557 }
558 return false;
559 }
560
561 void ciInstanceKlass::compute_injected_fields() {
562 assert(is_loaded(), "must be loaded");
563
564 int has_injected_fields = 0;
565 if (super() != NULL && super()->has_injected_fields()) {
566 has_injected_fields = 1;
567 } else {
568 GUARDED_VM_ENTRY({
569 has_injected_fields = compute_injected_fields_helper() ? 1 : 0;
570 });
571 }
572 // may be concurrently initialized for shared ciInstanceKlass objects
573 assert(_has_injected_fields == -1 || _has_injected_fields == has_injected_fields, "broken concurrent initialization");
574 _has_injected_fields = has_injected_fields;
575 }
576
577 // ------------------------------------------------------------------
578 // ciInstanceKlass::find_method
579 //
580 // Find a method in this klass.
581 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
582 VM_ENTRY_MARK;
583 InstanceKlass* k = get_instanceKlass();
584 Symbol* name_sym = name->get_symbol();
585 Symbol* sig_sym= signature->get_symbol();
586
587 Method* m = k->find_method(name_sym, sig_sym);
588 if (m == NULL) return NULL;
589
590 return CURRENT_THREAD_ENV->get_method(m);
591 }
592
593 // ------------------------------------------------------------------
594 // ciInstanceKlass::is_leaf_type
595 bool ciInstanceKlass::is_leaf_type() {
596 assert(is_loaded(), "must be loaded");
597 if (is_shared()) {
598 return is_final(); // approximately correct
599 } else {
600 return !_has_subklass && (nof_implementors() == 0);
601 }
602 }
603
604 // ------------------------------------------------------------------
605 // ciInstanceKlass::implementor
606 //
607 // Report an implementor of this interface.
608 // Note that there are various races here, since my copy
609 // of _nof_implementors might be out of date with respect
610 // to results returned by InstanceKlass::implementor.
611 // This is OK, since any dependencies we decide to assert
612 // will be checked later under the Compile_lock.
613 ciInstanceKlass* ciInstanceKlass::implementor() {
614 ciInstanceKlass* impl = _implementor;
615 if (impl == NULL) {
616 // Go into the VM to fetch the implementor.
617 {
618 VM_ENTRY_MARK;
619 Klass* k = get_instanceKlass()->implementor();
620 if (k != NULL) {
621 if (k == get_instanceKlass()) {
622 // More than one implementors. Use 'this' in this case.
623 impl = this;
624 } else {
625 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
626 }
627 }
628 }
629 // Memoize this result.
630 if (!is_shared()) {
631 _implementor = impl;
632 }
633 }
634 return impl;
635 }
636
637 // Utility class for printing of the contents of the static fields for
638 // use by compilation replay. It only prints out the information that
639 // could be consumed by the compiler, so for primitive types it prints
640 // out the actual value. For Strings it's the actual string value.
641 // For array types it it's first level array size since that's the
642 // only value which statically unchangeable. For all other reference
643 // types it simply prints out the dynamic type.
644
645 class StaticFinalFieldPrinter : public FieldClosure {
646 outputStream* _out;
647 const char* _holder;
648 public:
649 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
650 _out(out),
651 _holder(holder) {
652 }
653 void do_field(fieldDescriptor* fd) {
654 if (fd->is_final() && !fd->has_initial_value()) {
655 ResourceMark rm;
656 oop mirror = fd->field_holder()->java_mirror();
657 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
658 switch (fd->field_type()) {
659 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
660 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
661 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
662 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
663 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
664 case T_LONG: _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset()))); break;
665 case T_FLOAT: {
666 float f = mirror->float_field(fd->offset());
667 _out->print_cr("%d", *(int*)&f);
668 break;
669 }
670 case T_DOUBLE: {
671 double d = mirror->double_field(fd->offset());
672 _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
673 break;
674 }
675 case T_ARRAY: {
676 oop value = mirror->obj_field_acquire(fd->offset());
677 if (value == NULL) {
678 _out->print_cr("null");
679 } else {
680 typeArrayOop ta = (typeArrayOop)value;
681 _out->print("%d", ta->length());
682 if (value->is_objArray()) {
683 objArrayOop oa = (objArrayOop)value;
684 const char* klass_name = value->klass()->name()->as_quoted_ascii();
685 _out->print(" %s", klass_name);
686 }
687 _out->cr();
688 }
689 break;
690 }
691 case T_OBJECT: {
692 oop value = mirror->obj_field_acquire(fd->offset());
693 if (value == NULL) {
694 _out->print_cr("null");
695 } else if (value->is_instance()) {
696 if (value->is_a(SystemDictionary::String_klass())) {
697 _out->print("\"");
698 _out->print_raw(java_lang_String::as_quoted_ascii(value));
699 _out->print_cr("\"");
700 } else {
701 const char* klass_name = value->klass()->name()->as_quoted_ascii();
702 _out->print_cr("%s", klass_name);
703 }
704 } else {
705 ShouldNotReachHere();
706 }
707 break;
708 }
709 default:
710 ShouldNotReachHere();
711 }
712 }
713 }
714 };
715
716
717 void ciInstanceKlass::dump_replay_data(outputStream* out) {
718 ResourceMark rm;
719
720 InstanceKlass* ik = get_instanceKlass();
721 ConstantPool* cp = ik->constants();
722
723 // Try to record related loaded classes
724 Klass* sub = ik->subklass();
725 while (sub != NULL) {
726 if (sub->is_instance_klass()) {
727 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
728 }
729 sub = sub->next_sibling();
730 }
731
732 // Dump out the state of the constant pool tags. During replay the
733 // tags will be validated for things which shouldn't change and
734 // classes will be resolved if the tags indicate that they were
735 // resolved at compile time.
736 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
737 is_linked(), is_initialized(), cp->length());
738 for (int index = 1; index < cp->length(); index++) {
739 out->print(" %d", cp->tags()->at(index));
740 }
741 out->cr();
742 if (is_initialized()) {
743 // Dump out the static final fields in case the compilation relies
744 // on their value for correct replay.
745 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
746 ik->do_local_static_fields(&sffp);
747 }
748 }