1 /*
2 * Copyright (c) 1999, 2018, 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.inline.hpp"
30 #include "classfile/systemDictionary.hpp"
31 #include "memory/allocation.hpp"
32 #include "memory/allocation.inline.hpp"
33 #include "memory/resourceArea.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/fieldStreams.hpp"
36 #include "runtime/fieldDescriptor.inline.hpp"
37 #include "runtime/handles.inline.hpp"
38 #include "runtime/jniHandles.inline.hpp"
39
40 // ciInstanceKlass
41 //
42 // This class represents a Klass* in the HotSpot virtual machine
43 // whose Klass part in an InstanceKlass.
44
45
46 // ------------------------------------------------------------------
47 // ciInstanceKlass::ciInstanceKlass
48 //
49 // Loaded instance klass.
50 ciInstanceKlass::ciInstanceKlass(Klass* k) :
51 ciKlass(k)
52 {
53 assert(get_Klass()->is_instance_klass(), "wrong type");
54 assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
55 InstanceKlass* ik = get_instanceKlass();
56
57 AccessFlags access_flags = ik->access_flags();
58 _flags = ciFlags(access_flags);
59 _has_finalizer = access_flags.has_finalizer();
60 _has_subklass = ik->subklass() != NULL;
61 _init_state = ik->init_state();
62 _nonstatic_field_size = ik->nonstatic_field_size();
63 _has_nonstatic_fields = ik->has_nonstatic_fields();
64 _has_nonstatic_concrete_methods = ik->has_nonstatic_concrete_methods();
65 _is_unsafe_anonymous = ik->is_unsafe_anonymous();
66 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields:
67 _has_injected_fields = -1;
68 _implementor = NULL; // we will fill these lazily
69
70 // Ensure that the metadata wrapped by the ciMetadata is kept alive by GC.
71 // This is primarily useful for metadata which is considered as weak roots
72 // by the GC but need to be strong roots if reachable from a current compilation.
73 // InstanceKlass are created for both weak and strong metadata. Ensuring this metadata
74 // alive covers the cases where there are weak roots without performance cost.
75 oop holder = ik->holder_phantom();
76 if (ik->is_unsafe_anonymous()) {
77 // Though ciInstanceKlass records class loader oop, it's not enough to keep
78 // VM unsafe anonymous classes alive (loader == NULL). Klass holder should
79 // be used instead. It is enough to record a ciObject, since cached elements are never removed
80 // during ciObjectFactory lifetime. ciObjectFactory itself is created for
81 // every compilation and lives for the whole duration of the compilation.
82 assert(holder != NULL, "holder of unsafe anonymous class is the mirror which is never null");
83 (void)CURRENT_ENV->get_object(holder);
84 }
85
86 Thread *thread = Thread::current();
87 if (ciObjectFactory::is_initialized()) {
88 _loader = JNIHandles::make_local(thread, ik->class_loader());
89 _protection_domain = JNIHandles::make_local(thread,
90 ik->protection_domain());
91 _is_shared = false;
92 } else {
93 Handle h_loader(thread, ik->class_loader());
94 Handle h_protection_domain(thread, ik->protection_domain());
95 _loader = JNIHandles::make_global(h_loader);
96 _protection_domain = JNIHandles::make_global(h_protection_domain);
97 _is_shared = true;
98 }
99
100 // Lazy fields get filled in only upon request.
101 _super = NULL;
102 _java_mirror = NULL;
103
104 if (is_shared()) {
105 if (k != SystemDictionary::Object_klass()) {
106 super();
107 }
108 //compute_nonstatic_fields(); // done outside of constructor
109 }
110
111 _field_cache = NULL;
112 }
113
114 // Version for unloaded classes:
115 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
116 jobject loader, jobject protection_domain)
117 : ciKlass(name, T_OBJECT)
118 {
119 assert(name->char_at(0) != '[', "not an instance klass");
120 _init_state = (InstanceKlass::ClassState)0;
121 _nonstatic_field_size = -1;
122 _has_nonstatic_fields = false;
123 _nonstatic_fields = NULL;
124 _has_injected_fields = -1;
125 _is_unsafe_anonymous = false;
126 _loader = loader;
127 _protection_domain = protection_domain;
128 _is_shared = false;
129 _super = NULL;
130 _java_mirror = NULL;
131 _field_cache = NULL;
132 }
133
134
135
136 // ------------------------------------------------------------------
137 // ciInstanceKlass::compute_shared_is_initialized
138 void ciInstanceKlass::compute_shared_init_state() {
139 GUARDED_VM_ENTRY(
140 InstanceKlass* ik = get_instanceKlass();
141 _init_state = ik->init_state();
142 )
143 }
144
145 // ------------------------------------------------------------------
146 // ciInstanceKlass::compute_shared_has_subklass
147 bool ciInstanceKlass::compute_shared_has_subklass() {
148 GUARDED_VM_ENTRY(
149 InstanceKlass* ik = get_instanceKlass();
150 _has_subklass = ik->subklass() != NULL;
151 return _has_subklass;
152 )
153 }
154
155 // ------------------------------------------------------------------
156 // ciInstanceKlass::loader
157 oop ciInstanceKlass::loader() {
158 ASSERT_IN_VM;
159 return JNIHandles::resolve(_loader);
160 }
161
162 // ------------------------------------------------------------------
163 // ciInstanceKlass::loader_handle
164 jobject ciInstanceKlass::loader_handle() {
165 return _loader;
166 }
167
168 // ------------------------------------------------------------------
169 // ciInstanceKlass::protection_domain
170 oop ciInstanceKlass::protection_domain() {
171 ASSERT_IN_VM;
172 return JNIHandles::resolve(_protection_domain);
173 }
174
175 // ------------------------------------------------------------------
176 // ciInstanceKlass::protection_domain_handle
177 jobject ciInstanceKlass::protection_domain_handle() {
178 return _protection_domain;
179 }
180
181 // ------------------------------------------------------------------
182 // ciInstanceKlass::field_cache
183 //
184 // Get the field cache associated with this klass.
185 ciConstantPoolCache* ciInstanceKlass::field_cache() {
186 if (is_shared()) {
187 return NULL;
188 }
189 if (_field_cache == NULL) {
190 assert(!is_java_lang_Object(), "Object has no fields");
191 Arena* arena = CURRENT_ENV->arena();
192 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
193 }
194 return _field_cache;
195 }
196
197 // ------------------------------------------------------------------
198 // ciInstanceKlass::get_canonical_holder
199 //
200 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
201 #ifdef ASSERT
202 if (!(offset >= 0 && offset < layout_helper())) {
203 tty->print("*** get_canonical_holder(%d) on ", offset);
204 this->print();
205 tty->print_cr(" ***");
206 };
207 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
208 #endif
209
210 if (offset < instanceOopDesc::base_offset_in_bytes()) {
211 // All header offsets belong properly to java/lang/Object.
212 return CURRENT_ENV->Object_klass();
213 }
214
215 ciInstanceKlass* self = this;
216 for (;;) {
217 assert(self->is_loaded(), "must be loaded to have size");
218 ciInstanceKlass* super = self->super();
219 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
220 !super->contains_field_offset(offset)) {
221 return self;
222 } else {
223 self = super; // return super->get_canonical_holder(offset)
224 }
225 }
226 }
227
228 // ------------------------------------------------------------------
229 // ciInstanceKlass::is_java_lang_Object
230 //
231 // Is this klass java.lang.Object?
232 bool ciInstanceKlass::is_java_lang_Object() const {
233 return equals(CURRENT_ENV->Object_klass());
234 }
235
236 // ------------------------------------------------------------------
237 // ciInstanceKlass::uses_default_loader
238 bool ciInstanceKlass::uses_default_loader() const {
239 // Note: We do not need to resolve the handle or enter the VM
240 // in order to test null-ness.
241 return _loader == NULL;
242 }
243
244 // ------------------------------------------------------------------
245
246 /**
247 * Return basic type of boxed value for box klass or T_OBJECT if not.
248 */
249 BasicType ciInstanceKlass::box_klass_type() const {
250 if (uses_default_loader() && is_loaded()) {
251 return SystemDictionary::box_klass_type(get_Klass());
252 } else {
253 return T_OBJECT;
254 }
255 }
256
257 /**
258 * Is this boxing klass?
259 */
260 bool ciInstanceKlass::is_box_klass() const {
261 return is_java_primitive(box_klass_type());
262 }
263
264 /**
265 * Is this boxed value offset?
266 */
267 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
268 BasicType bt = box_klass_type();
269 return is_java_primitive(bt) &&
270 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
271 }
272
273 // ------------------------------------------------------------------
274 // ciInstanceKlass::is_in_package
275 //
276 // Is this klass in the given package?
277 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
278 // To avoid class loader mischief, this test always rejects application classes.
279 if (!uses_default_loader())
280 return false;
281 GUARDED_VM_ENTRY(
282 return is_in_package_impl(packagename, len);
283 )
284 }
285
286 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
287 ASSERT_IN_VM;
288
289 // If packagename contains trailing '/' exclude it from the
290 // prefix-test since we test for it explicitly.
291 if (packagename[len - 1] == '/')
292 len--;
293
294 if (!name()->starts_with(packagename, len))
295 return false;
296
297 // Test if the class name is something like "java/lang".
298 if ((len + 1) > name()->utf8_length())
299 return false;
300
301 // Test for trailing '/'
302 if (name()->char_at(len) != '/')
303 return false;
304
305 // Make sure it's not actually in a subpackage:
306 if (name()->index_of_at(len+1, "/", 1) >= 0)
307 return false;
308
309 return true;
310 }
311
312 // ------------------------------------------------------------------
313 // ciInstanceKlass::print_impl
314 //
315 // Implementation of the print method.
316 void ciInstanceKlass::print_impl(outputStream* st) {
317 ciKlass::print_impl(st);
318 GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
319 if (is_loaded()) {
320 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
321 bool_to_str(is_initialized()),
322 bool_to_str(has_finalizer()),
323 bool_to_str(has_subklass()),
324 layout_helper());
325
326 _flags.print_klass_flags();
327
328 if (_super) {
329 st->print(" super=");
330 _super->print_name();
331 }
332 if (_java_mirror) {
333 st->print(" mirror=PRESENT");
334 }
335 } else {
336 st->print(" loaded=false");
337 }
338 }
339
340 // ------------------------------------------------------------------
341 // ciInstanceKlass::super
342 //
343 // Get the superklass of this klass.
344 ciInstanceKlass* ciInstanceKlass::super() {
345 assert(is_loaded(), "must be loaded");
346 if (_super == NULL && !is_java_lang_Object()) {
347 GUARDED_VM_ENTRY(
348 Klass* super_klass = get_instanceKlass()->super();
349 _super = CURRENT_ENV->get_instance_klass(super_klass);
350 )
351 }
352 return _super;
353 }
354
355 // ------------------------------------------------------------------
356 // ciInstanceKlass::java_mirror
357 //
358 // Get the instance of java.lang.Class corresponding to this klass.
359 // Cache it on this->_java_mirror.
360 ciInstance* ciInstanceKlass::java_mirror() {
361 if (is_shared()) {
362 return ciKlass::java_mirror();
363 }
364 if (_java_mirror == NULL) {
365 _java_mirror = ciKlass::java_mirror();
366 }
367 return _java_mirror;
368 }
369
370 // ------------------------------------------------------------------
371 // ciInstanceKlass::unique_concrete_subklass
372 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
373 if (!is_loaded()) return NULL; // No change if class is not loaded
374 if (!is_abstract()) return NULL; // Only applies to abstract classes.
375 if (!has_subklass()) return NULL; // Must have at least one subklass.
376 VM_ENTRY_MARK;
377 InstanceKlass* ik = get_instanceKlass();
378 Klass* up = ik->up_cast_abstract();
379 assert(up->is_instance_klass(), "must be InstanceKlass");
380 if (ik == up) {
381 return NULL;
382 }
383 return CURRENT_THREAD_ENV->get_instance_klass(up);
384 }
385
386 // ------------------------------------------------------------------
387 // ciInstanceKlass::has_finalizable_subclass
388 bool ciInstanceKlass::has_finalizable_subclass() {
389 if (!is_loaded()) return true;
390 VM_ENTRY_MARK;
391 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
392 }
393
394 // ------------------------------------------------------------------
395 // ciInstanceKlass::get_field_by_offset
396 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
397 if (!is_static) {
398 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
399 ciField* field = _nonstatic_fields->at(i);
400 int field_off = field->offset_in_bytes();
401 if (field_off == field_offset)
402 return field;
403 if (field_off > field_offset)
404 break;
405 // could do binary search or check bins, but probably not worth it
406 }
407 return NULL;
408 }
409 VM_ENTRY_MARK;
410 InstanceKlass* k = get_instanceKlass();
411 fieldDescriptor fd;
412 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
413 return NULL;
414 }
415 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
416 return field;
417 }
418
419 // ------------------------------------------------------------------
420 // ciInstanceKlass::get_field_by_name
421 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
422 VM_ENTRY_MARK;
423 InstanceKlass* k = get_instanceKlass();
424 fieldDescriptor fd;
425 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
426 if (def == NULL) {
427 return NULL;
428 }
429 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
430 return field;
431 }
432
433
434 static int sort_field_by_offset(ciField** a, ciField** b) {
435 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
436 // (no worries about 32-bit overflow...)
437 }
438
439 // ------------------------------------------------------------------
440 // ciInstanceKlass::compute_nonstatic_fields
441 int ciInstanceKlass::compute_nonstatic_fields() {
442 assert(is_loaded(), "must be loaded");
443
444 if (_nonstatic_fields != NULL)
445 return _nonstatic_fields->length();
446
447 if (!has_nonstatic_fields()) {
448 Arena* arena = CURRENT_ENV->arena();
449 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
450 return 0;
451 }
452 assert(!is_java_lang_Object(), "bootstrap OK");
453
454 // Size in bytes of my fields, including inherited fields.
455 int fsize = nonstatic_field_size() * heapOopSize;
456
457 ciInstanceKlass* super = this->super();
458 GrowableArray<ciField*>* super_fields = NULL;
459 if (super != NULL && super->has_nonstatic_fields()) {
460 int super_fsize = super->nonstatic_field_size() * heapOopSize;
461 int super_flen = super->nof_nonstatic_fields();
462 super_fields = super->_nonstatic_fields;
463 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
464 // See if I am no larger than my super; if so, I can use his fields.
465 if (fsize == super_fsize) {
466 _nonstatic_fields = super_fields;
467 return super_fields->length();
468 }
469 }
470
471 GrowableArray<ciField*>* fields = NULL;
472 GUARDED_VM_ENTRY({
473 fields = compute_nonstatic_fields_impl(super_fields);
474 });
475
476 if (fields == NULL) {
477 // This can happen if this class (java.lang.Class) has invisible fields.
478 if (super_fields != NULL) {
479 _nonstatic_fields = super_fields;
480 return super_fields->length();
481 } else {
482 return 0;
483 }
484 }
485
486 int flen = fields->length();
487
488 // Now sort them by offset, ascending.
489 // (In principle, they could mix with superclass fields.)
490 fields->sort(sort_field_by_offset);
491 _nonstatic_fields = fields;
492 return flen;
493 }
494
495 GrowableArray<ciField*>*
496 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
497 super_fields) {
498 ASSERT_IN_VM;
499 Arena* arena = CURRENT_ENV->arena();
500 int flen = 0;
501 GrowableArray<ciField*>* fields = NULL;
502 InstanceKlass* k = get_instanceKlass();
503 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
504 if (fs.access_flags().is_static()) continue;
505 flen += 1;
506 }
507
508 // allocate the array:
509 if (flen == 0) {
510 return NULL; // return nothing if none are locally declared
511 }
512 if (super_fields != NULL) {
513 flen += super_fields->length();
514 }
515 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
516 if (super_fields != NULL) {
517 fields->appendAll(super_fields);
518 }
519
520 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
521 if (fs.access_flags().is_static()) continue;
522 fieldDescriptor& fd = fs.field_descriptor();
523 ciField* field = new (arena) ciField(&fd);
524 fields->append(field);
525 }
526 assert(fields->length() == flen, "sanity");
527 return fields;
528 }
529
530 bool ciInstanceKlass::compute_injected_fields_helper() {
531 ASSERT_IN_VM;
532 InstanceKlass* k = get_instanceKlass();
533
534 for (InternalFieldStream fs(k); !fs.done(); fs.next()) {
535 if (fs.access_flags().is_static()) continue;
536 return true;
537 }
538 return false;
539 }
540
541 void ciInstanceKlass::compute_injected_fields() {
542 assert(is_loaded(), "must be loaded");
543
544 int has_injected_fields = 0;
545 if (super() != NULL && super()->has_injected_fields()) {
546 has_injected_fields = 1;
547 } else {
548 GUARDED_VM_ENTRY({
549 has_injected_fields = compute_injected_fields_helper() ? 1 : 0;
550 });
551 }
552 // may be concurrently initialized for shared ciInstanceKlass objects
553 assert(_has_injected_fields == -1 || _has_injected_fields == has_injected_fields, "broken concurrent initialization");
554 _has_injected_fields = has_injected_fields;
555 }
556
557 bool ciInstanceKlass::has_object_fields() const {
558 GUARDED_VM_ENTRY(
559 return get_instanceKlass()->nonstatic_oop_map_size() > 0;
560 );
561 }
562
563 // ------------------------------------------------------------------
564 // ciInstanceKlass::find_method
565 //
566 // Find a method in this klass.
567 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
568 VM_ENTRY_MARK;
569 InstanceKlass* k = get_instanceKlass();
570 Symbol* name_sym = name->get_symbol();
571 Symbol* sig_sym= signature->get_symbol();
572
573 Method* m = k->find_method(name_sym, sig_sym);
574 if (m == NULL) return NULL;
575
576 return CURRENT_THREAD_ENV->get_method(m);
577 }
578
579 // ------------------------------------------------------------------
580 // ciInstanceKlass::is_leaf_type
581 bool ciInstanceKlass::is_leaf_type() {
582 assert(is_loaded(), "must be loaded");
583 if (is_shared()) {
584 return is_final(); // approximately correct
585 } else {
586 return !_has_subklass && (nof_implementors() == 0);
587 }
588 }
589
590 // ------------------------------------------------------------------
591 // ciInstanceKlass::implementor
592 //
593 // Report an implementor of this interface.
594 // Note that there are various races here, since my copy
595 // of _nof_implementors might be out of date with respect
596 // to results returned by InstanceKlass::implementor.
597 // This is OK, since any dependencies we decide to assert
598 // will be checked later under the Compile_lock.
599 ciInstanceKlass* ciInstanceKlass::implementor() {
600 ciInstanceKlass* impl = _implementor;
601 if (impl == NULL) {
602 // Go into the VM to fetch the implementor.
603 {
604 VM_ENTRY_MARK;
605 MutexLocker ml(Compile_lock);
606 Klass* k = get_instanceKlass()->implementor();
607 if (k != NULL) {
608 if (k == get_instanceKlass()) {
609 // More than one implementors. Use 'this' in this case.
610 impl = this;
611 } else {
612 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
613 }
614 }
615 }
616 // Memoize this result.
617 if (!is_shared()) {
618 _implementor = impl;
619 }
620 }
621 return impl;
622 }
623
624 ciInstanceKlass* ciInstanceKlass::unsafe_anonymous_host() {
625 assert(is_loaded(), "must be loaded");
626 if (is_unsafe_anonymous()) {
627 VM_ENTRY_MARK
628 Klass* unsafe_anonymous_host = get_instanceKlass()->unsafe_anonymous_host();
629 return CURRENT_ENV->get_instance_klass(unsafe_anonymous_host);
630 }
631 return NULL;
632 }
633
634 // Utility class for printing of the contents of the static fields for
635 // use by compilation replay. It only prints out the information that
636 // could be consumed by the compiler, so for primitive types it prints
637 // out the actual value. For Strings it's the actual string value.
638 // For array types it it's first level array size since that's the
639 // only value which statically unchangeable. For all other reference
640 // types it simply prints out the dynamic type.
641
642 class StaticFinalFieldPrinter : public FieldClosure {
643 outputStream* _out;
644 const char* _holder;
645 public:
646 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
647 _out(out),
648 _holder(holder) {
649 }
650 void do_field(fieldDescriptor* fd) {
651 if (fd->is_final() && !fd->has_initial_value()) {
652 ResourceMark rm;
653 oop mirror = fd->field_holder()->java_mirror();
654 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
655 switch (fd->field_type()) {
656 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
657 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
658 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
659 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
660 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
661 case T_LONG: _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset()))); break;
662 case T_FLOAT: {
663 float f = mirror->float_field(fd->offset());
664 _out->print_cr("%d", *(int*)&f);
665 break;
666 }
667 case T_DOUBLE: {
668 double d = mirror->double_field(fd->offset());
669 _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
670 break;
671 }
672 case T_ARRAY: {
673 oop value = mirror->obj_field_acquire(fd->offset());
674 if (value == NULL) {
675 _out->print_cr("null");
676 } else {
677 typeArrayOop ta = (typeArrayOop)value;
678 _out->print("%d", ta->length());
679 if (value->is_objArray()) {
680 objArrayOop oa = (objArrayOop)value;
681 const char* klass_name = value->klass()->name()->as_quoted_ascii();
682 _out->print(" %s", klass_name);
683 }
684 _out->cr();
685 }
686 break;
687 }
688 case T_OBJECT: {
689 oop value = mirror->obj_field_acquire(fd->offset());
690 if (value == NULL) {
691 _out->print_cr("null");
692 } else if (value->is_instance()) {
693 if (value->is_a(SystemDictionary::String_klass())) {
694 const char* ascii_value = java_lang_String::as_quoted_ascii(value);
695 _out->print("\"%s\"", (ascii_value != NULL) ? ascii_value : "");
696 } else {
697 const char* klass_name = value->klass()->name()->as_quoted_ascii();
698 _out->print_cr("%s", klass_name);
699 }
700 } else {
701 ShouldNotReachHere();
702 }
703 break;
704 }
705 default:
706 ShouldNotReachHere();
707 }
708 }
709 }
710 };
711
712
713 void ciInstanceKlass::dump_replay_data(outputStream* out) {
714 ResourceMark rm;
715
716 InstanceKlass* ik = get_instanceKlass();
717 ConstantPool* cp = ik->constants();
718
719 // Try to record related loaded classes
720 Klass* sub = ik->subklass();
721 while (sub != NULL) {
722 if (sub->is_instance_klass()) {
723 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
724 }
725 sub = sub->next_sibling();
726 }
727
728 // Dump out the state of the constant pool tags. During replay the
729 // tags will be validated for things which shouldn't change and
730 // classes will be resolved if the tags indicate that they were
731 // resolved at compile time.
732 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
733 is_linked(), is_initialized(), cp->length());
734 for (int index = 1; index < cp->length(); index++) {
735 out->print(" %d", cp->tags()->at(index));
736 }
737 out->cr();
738 if (is_initialized()) {
739 // Dump out the static final fields in case the compilation relies
740 // on their value for correct replay.
741 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
742 ik->do_local_static_fields(&sffp);
743 }
744 }