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 _has_object_fields = -1;
69 _implementor = NULL; // we will fill these lazily
70
71 // Ensure that the metadata wrapped by the ciMetadata is kept alive by GC.
72 // This is primarily useful for metadata which is considered as weak roots
73 // by the GC but need to be strong roots if reachable from a current compilation.
74 // InstanceKlass are created for both weak and strong metadata. Ensuring this metadata
75 // alive covers the cases where there are weak roots without performance cost.
76 oop holder = ik->holder_phantom();
77 if (ik->is_unsafe_anonymous()) {
78 // Though ciInstanceKlass records class loader oop, it's not enough to keep
79 // VM unsafe anonymous classes alive (loader == NULL). Klass holder should
80 // be used instead. It is enough to record a ciObject, since cached elements are never removed
81 // during ciObjectFactory lifetime. ciObjectFactory itself is created for
82 // every compilation and lives for the whole duration of the compilation.
83 assert(holder != NULL, "holder of unsafe anonymous class is the mirror which is never null");
84 (void)CURRENT_ENV->get_object(holder);
85 }
86
87 Thread *thread = Thread::current();
88 if (ciObjectFactory::is_initialized()) {
89 _loader = JNIHandles::make_local(thread, ik->class_loader());
90 _protection_domain = JNIHandles::make_local(thread,
91 ik->protection_domain());
92 _is_shared = false;
93 } else {
94 Handle h_loader(thread, ik->class_loader());
95 Handle h_protection_domain(thread, ik->protection_domain());
96 _loader = JNIHandles::make_global(h_loader);
97 _protection_domain = JNIHandles::make_global(h_protection_domain);
98 _is_shared = true;
99 }
100
101 // Lazy fields get filled in only upon request.
102 _super = NULL;
103 _java_mirror = NULL;
104
105 if (is_shared()) {
106 if (k != SystemDictionary::Object_klass()) {
107 super();
108 }
109 //compute_nonstatic_fields(); // done outside of constructor
110 }
111
112 _field_cache = NULL;
113 }
114
115 // Version for unloaded classes:
116 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
117 jobject loader, jobject protection_domain)
118 : ciKlass(name, T_OBJECT)
119 {
120 assert(name->char_at(0) != '[', "not an instance klass");
121 _init_state = (InstanceKlass::ClassState)0;
122 _nonstatic_field_size = -1;
123 _has_nonstatic_fields = false;
124 _nonstatic_fields = NULL;
125 _has_injected_fields = -1;
126 _has_object_fields = -1;
127 _is_unsafe_anonymous = false;
128 _loader = loader;
129 _protection_domain = protection_domain;
130 _is_shared = false;
131 _super = NULL;
132 _java_mirror = NULL;
133 _field_cache = NULL;
134 }
135
136
137
138 // ------------------------------------------------------------------
139 // ciInstanceKlass::compute_shared_is_initialized
140 void ciInstanceKlass::compute_shared_init_state() {
141 GUARDED_VM_ENTRY(
142 InstanceKlass* ik = get_instanceKlass();
143 _init_state = ik->init_state();
144 )
145 }
146
147 // ------------------------------------------------------------------
148 // ciInstanceKlass::compute_shared_has_subklass
149 bool ciInstanceKlass::compute_shared_has_subklass() {
150 GUARDED_VM_ENTRY(
151 InstanceKlass* ik = get_instanceKlass();
152 _has_subklass = ik->subklass() != NULL;
153 return _has_subklass;
154 )
155 }
156
157 // ------------------------------------------------------------------
158 // ciInstanceKlass::loader
159 oop ciInstanceKlass::loader() {
160 ASSERT_IN_VM;
161 return JNIHandles::resolve(_loader);
162 }
163
164 // ------------------------------------------------------------------
165 // ciInstanceKlass::loader_handle
166 jobject ciInstanceKlass::loader_handle() {
167 return _loader;
168 }
169
170 // ------------------------------------------------------------------
171 // ciInstanceKlass::protection_domain
172 oop ciInstanceKlass::protection_domain() {
173 ASSERT_IN_VM;
174 return JNIHandles::resolve(_protection_domain);
175 }
176
177 // ------------------------------------------------------------------
178 // ciInstanceKlass::protection_domain_handle
179 jobject ciInstanceKlass::protection_domain_handle() {
180 return _protection_domain;
181 }
182
183 // ------------------------------------------------------------------
184 // ciInstanceKlass::field_cache
185 //
186 // Get the field cache associated with this klass.
187 ciConstantPoolCache* ciInstanceKlass::field_cache() {
188 if (is_shared()) {
189 return NULL;
190 }
191 if (_field_cache == NULL) {
192 assert(!is_java_lang_Object(), "Object has no fields");
193 Arena* arena = CURRENT_ENV->arena();
194 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
195 }
196 return _field_cache;
197 }
198
199 // ------------------------------------------------------------------
200 // ciInstanceKlass::get_canonical_holder
201 //
202 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
203 #ifdef ASSERT
204 if (!(offset >= 0 && offset < layout_helper())) {
205 tty->print("*** get_canonical_holder(%d) on ", offset);
206 this->print();
207 tty->print_cr(" ***");
208 };
209 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
210 #endif
211
212 if (offset < instanceOopDesc::base_offset_in_bytes()) {
213 // All header offsets belong properly to java/lang/Object.
214 return CURRENT_ENV->Object_klass();
215 }
216
217 ciInstanceKlass* self = this;
218 for (;;) {
219 assert(self->is_loaded(), "must be loaded to have size");
220 ciInstanceKlass* super = self->super();
221 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
222 !super->contains_field_offset(offset)) {
223 return self;
224 } else {
225 self = super; // return super->get_canonical_holder(offset)
226 }
227 }
228 }
229
230 // ------------------------------------------------------------------
231 // ciInstanceKlass::is_java_lang_Object
232 //
233 // Is this klass java.lang.Object?
234 bool ciInstanceKlass::is_java_lang_Object() const {
235 return equals(CURRENT_ENV->Object_klass());
236 }
237
238 // ------------------------------------------------------------------
239 // ciInstanceKlass::uses_default_loader
240 bool ciInstanceKlass::uses_default_loader() const {
241 // Note: We do not need to resolve the handle or enter the VM
242 // in order to test null-ness.
243 return _loader == NULL;
244 }
245
246 // ------------------------------------------------------------------
247
248 /**
249 * Return basic type of boxed value for box klass or T_OBJECT if not.
250 */
251 BasicType ciInstanceKlass::box_klass_type() const {
252 if (uses_default_loader() && is_loaded()) {
253 return SystemDictionary::box_klass_type(get_Klass());
254 } else {
255 return T_OBJECT;
256 }
257 }
258
259 /**
260 * Is this boxing klass?
261 */
262 bool ciInstanceKlass::is_box_klass() const {
263 return is_java_primitive(box_klass_type());
264 }
265
266 /**
267 * Is this boxed value offset?
268 */
269 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
270 BasicType bt = box_klass_type();
271 return is_java_primitive(bt) &&
272 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
273 }
274
275 // ------------------------------------------------------------------
276 // ciInstanceKlass::is_in_package
277 //
278 // Is this klass in the given package?
279 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
280 // To avoid class loader mischief, this test always rejects application classes.
281 if (!uses_default_loader())
282 return false;
283 GUARDED_VM_ENTRY(
284 return is_in_package_impl(packagename, len);
285 )
286 }
287
288 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
289 ASSERT_IN_VM;
290
291 // If packagename contains trailing '/' exclude it from the
292 // prefix-test since we test for it explicitly.
293 if (packagename[len - 1] == '/')
294 len--;
295
296 if (!name()->starts_with(packagename, len))
297 return false;
298
299 // Test if the class name is something like "java/lang".
300 if ((len + 1) > name()->utf8_length())
301 return false;
302
303 // Test for trailing '/'
304 if (name()->char_at(len) != '/')
305 return false;
306
307 // Make sure it's not actually in a subpackage:
308 if (name()->index_of_at(len+1, "/", 1) >= 0)
309 return false;
310
311 return true;
312 }
313
314 // ------------------------------------------------------------------
315 // ciInstanceKlass::print_impl
316 //
317 // Implementation of the print method.
318 void ciInstanceKlass::print_impl(outputStream* st) {
319 ciKlass::print_impl(st);
320 GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
321 if (is_loaded()) {
322 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
323 bool_to_str(is_initialized()),
324 bool_to_str(has_finalizer()),
325 bool_to_str(has_subklass()),
326 layout_helper());
327
328 _flags.print_klass_flags();
329
330 if (_super) {
331 st->print(" super=");
332 _super->print_name();
333 }
334 if (_java_mirror) {
335 st->print(" mirror=PRESENT");
336 }
337 } else {
338 st->print(" loaded=false");
339 }
340 }
341
342 // ------------------------------------------------------------------
343 // ciInstanceKlass::super
344 //
345 // Get the superklass of this klass.
346 ciInstanceKlass* ciInstanceKlass::super() {
347 assert(is_loaded(), "must be loaded");
348 if (_super == NULL && !is_java_lang_Object()) {
349 GUARDED_VM_ENTRY(
350 Klass* super_klass = get_instanceKlass()->super();
351 _super = CURRENT_ENV->get_instance_klass(super_klass);
352 )
353 }
354 return _super;
355 }
356
357 // ------------------------------------------------------------------
358 // ciInstanceKlass::java_mirror
359 //
360 // Get the instance of java.lang.Class corresponding to this klass.
361 // Cache it on this->_java_mirror.
362 ciInstance* ciInstanceKlass::java_mirror() {
363 if (is_shared()) {
364 return ciKlass::java_mirror();
365 }
366 if (_java_mirror == NULL) {
367 _java_mirror = ciKlass::java_mirror();
368 }
369 return _java_mirror;
370 }
371
372 // ------------------------------------------------------------------
373 // ciInstanceKlass::unique_concrete_subklass
374 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
375 if (!is_loaded()) return NULL; // No change if class is not loaded
376 if (!is_abstract()) return NULL; // Only applies to abstract classes.
377 if (!has_subklass()) return NULL; // Must have at least one subklass.
378 VM_ENTRY_MARK;
379 InstanceKlass* ik = get_instanceKlass();
380 Klass* up = ik->up_cast_abstract();
381 assert(up->is_instance_klass(), "must be InstanceKlass");
382 if (ik == up) {
383 return NULL;
384 }
385 return CURRENT_THREAD_ENV->get_instance_klass(up);
386 }
387
388 // ------------------------------------------------------------------
389 // ciInstanceKlass::has_finalizable_subclass
390 bool ciInstanceKlass::has_finalizable_subclass() {
391 if (!is_loaded()) return true;
392 VM_ENTRY_MARK;
393 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
394 }
395
396 // ------------------------------------------------------------------
397 // ciInstanceKlass::get_field_by_offset
398 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
399 if (!is_static) {
400 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
401 ciField* field = _nonstatic_fields->at(i);
402 int field_off = field->offset_in_bytes();
403 if (field_off == field_offset)
404 return field;
405 if (field_off > field_offset)
406 break;
407 // could do binary search or check bins, but probably not worth it
408 }
409 return NULL;
410 }
411 VM_ENTRY_MARK;
412 InstanceKlass* k = get_instanceKlass();
413 fieldDescriptor fd;
414 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
415 return NULL;
416 }
417 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
418 return field;
419 }
420
421 // ------------------------------------------------------------------
422 // ciInstanceKlass::get_field_by_name
423 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
424 VM_ENTRY_MARK;
425 InstanceKlass* k = get_instanceKlass();
426 fieldDescriptor fd;
427 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
428 if (def == NULL) {
429 return NULL;
430 }
431 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
432 return field;
433 }
434
435
436 static int sort_field_by_offset(ciField** a, ciField** b) {
437 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
438 // (no worries about 32-bit overflow...)
439 }
440
441 // ------------------------------------------------------------------
442 // ciInstanceKlass::compute_nonstatic_fields
443 int ciInstanceKlass::compute_nonstatic_fields() {
444 assert(is_loaded(), "must be loaded");
445
446 if (_nonstatic_fields != NULL)
447 return _nonstatic_fields->length();
448
449 if (!has_nonstatic_fields()) {
450 Arena* arena = CURRENT_ENV->arena();
451 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
452 return 0;
453 }
454 assert(!is_java_lang_Object(), "bootstrap OK");
455
456 // Size in bytes of my fields, including inherited fields.
457 int fsize = nonstatic_field_size() * heapOopSize;
458
459 ciInstanceKlass* super = this->super();
460 GrowableArray<ciField*>* super_fields = NULL;
461 if (super != NULL && super->has_nonstatic_fields()) {
462 int super_fsize = super->nonstatic_field_size() * heapOopSize;
463 int super_flen = super->nof_nonstatic_fields();
464 super_fields = super->_nonstatic_fields;
465 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
466 // See if I am no larger than my super; if so, I can use his fields.
467 if (fsize == super_fsize) {
468 _nonstatic_fields = super_fields;
469 return super_fields->length();
470 }
471 }
472
473 GrowableArray<ciField*>* fields = NULL;
474 GUARDED_VM_ENTRY({
475 fields = compute_nonstatic_fields_impl(super_fields);
476 });
477
478 if (fields == NULL) {
479 // This can happen if this class (java.lang.Class) has invisible fields.
480 if (super_fields != NULL) {
481 _nonstatic_fields = super_fields;
482 return super_fields->length();
483 } else {
484 return 0;
485 }
486 }
487
488 int flen = fields->length();
489
490 // Now sort them by offset, ascending.
491 // (In principle, they could mix with superclass fields.)
492 fields->sort(sort_field_by_offset);
493 _nonstatic_fields = fields;
494 return flen;
495 }
496
497 GrowableArray<ciField*>*
498 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
499 super_fields) {
500 ASSERT_IN_VM;
501 Arena* arena = CURRENT_ENV->arena();
502 int flen = 0;
503 GrowableArray<ciField*>* fields = NULL;
504 InstanceKlass* k = get_instanceKlass();
505 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
506 if (fs.access_flags().is_static()) continue;
507 flen += 1;
508 }
509
510 // allocate the array:
511 if (flen == 0) {
512 return NULL; // return nothing if none are locally declared
513 }
514 if (super_fields != NULL) {
515 flen += super_fields->length();
516 }
517 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
518 if (super_fields != NULL) {
519 fields->appendAll(super_fields);
520 }
521
522 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
523 if (fs.access_flags().is_static()) continue;
524 fieldDescriptor& fd = fs.field_descriptor();
525 ciField* field = new (arena) ciField(&fd);
526 fields->append(field);
527 }
528 assert(fields->length() == flen, "sanity");
529 return fields;
530 }
531
532 bool ciInstanceKlass::compute_injected_fields_helper() {
533 ASSERT_IN_VM;
534 InstanceKlass* k = get_instanceKlass();
535
536 for (InternalFieldStream fs(k); !fs.done(); fs.next()) {
537 if (fs.access_flags().is_static()) continue;
538 return true;
539 }
540 return false;
541 }
542
543 void ciInstanceKlass::compute_injected_fields() {
544 assert(is_loaded(), "must be loaded");
545
546 int has_injected_fields = 0;
547 if (super() != NULL && super()->has_injected_fields()) {
548 has_injected_fields = 1;
549 } else {
550 GUARDED_VM_ENTRY({
551 has_injected_fields = compute_injected_fields_helper() ? 1 : 0;
552 });
553 }
554 // may be concurrently initialized for shared ciInstanceKlass objects
555 assert(_has_injected_fields == -1 || _has_injected_fields == has_injected_fields, "broken concurrent initialization");
556 _has_injected_fields = has_injected_fields;
557 }
558
559 void ciInstanceKlass::compute_object_fields() {
560 for (int i = 0; i < nof_nonstatic_fields(); i++) {
561 ciField* f = nonstatic_field_at(i);
562 if (f->layout_type() == T_OBJECT) {
563 assert(_has_object_fields == -1 || _has_object_fields == 1, "broken concurrent initialization");
564 _has_object_fields = 1;
565 return;
566 }
567 }
568 assert(_has_object_fields == -1 || _has_object_fields == 0, "broken concurrent initialization");
569 _has_object_fields = 0;
570 }
571
572 // ------------------------------------------------------------------
573 // ciInstanceKlass::find_method
574 //
575 // Find a method in this klass.
576 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
577 VM_ENTRY_MARK;
578 InstanceKlass* k = get_instanceKlass();
579 Symbol* name_sym = name->get_symbol();
580 Symbol* sig_sym= signature->get_symbol();
581
582 Method* m = k->find_method(name_sym, sig_sym);
583 if (m == NULL) return NULL;
584
585 return CURRENT_THREAD_ENV->get_method(m);
586 }
587
588 // ------------------------------------------------------------------
589 // ciInstanceKlass::is_leaf_type
590 bool ciInstanceKlass::is_leaf_type() {
591 assert(is_loaded(), "must be loaded");
592 if (is_shared()) {
593 return is_final(); // approximately correct
594 } else {
595 return !_has_subklass && (nof_implementors() == 0);
596 }
597 }
598
599 // ------------------------------------------------------------------
600 // ciInstanceKlass::implementor
601 //
602 // Report an implementor of this interface.
603 // Note that there are various races here, since my copy
604 // of _nof_implementors might be out of date with respect
605 // to results returned by InstanceKlass::implementor.
606 // This is OK, since any dependencies we decide to assert
607 // will be checked later under the Compile_lock.
608 ciInstanceKlass* ciInstanceKlass::implementor() {
609 ciInstanceKlass* impl = _implementor;
610 if (impl == NULL) {
611 // Go into the VM to fetch the implementor.
612 {
613 VM_ENTRY_MARK;
614 MutexLocker ml(Compile_lock);
615 Klass* k = get_instanceKlass()->implementor();
616 if (k != NULL) {
617 if (k == get_instanceKlass()) {
618 // More than one implementors. Use 'this' in this case.
619 impl = this;
620 } else {
621 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
622 }
623 }
624 }
625 // Memoize this result.
626 if (!is_shared()) {
627 _implementor = impl;
628 }
629 }
630 return impl;
631 }
632
633 ciInstanceKlass* ciInstanceKlass::unsafe_anonymous_host() {
634 assert(is_loaded(), "must be loaded");
635 if (is_unsafe_anonymous()) {
636 VM_ENTRY_MARK
637 Klass* unsafe_anonymous_host = get_instanceKlass()->unsafe_anonymous_host();
638 return CURRENT_ENV->get_instance_klass(unsafe_anonymous_host);
639 }
640 return NULL;
641 }
642
643 // Utility class for printing of the contents of the static fields for
644 // use by compilation replay. It only prints out the information that
645 // could be consumed by the compiler, so for primitive types it prints
646 // out the actual value. For Strings it's the actual string value.
647 // For array types it it's first level array size since that's the
648 // only value which statically unchangeable. For all other reference
649 // types it simply prints out the dynamic type.
650
651 class StaticFinalFieldPrinter : public FieldClosure {
652 outputStream* _out;
653 const char* _holder;
654 public:
655 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
656 _out(out),
657 _holder(holder) {
658 }
659 void do_field(fieldDescriptor* fd) {
660 if (fd->is_final() && !fd->has_initial_value()) {
661 ResourceMark rm;
662 oop mirror = fd->field_holder()->java_mirror();
663 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
664 switch (fd->field_type()) {
665 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
666 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
667 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
668 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
669 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
670 case T_LONG: _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset()))); break;
671 case T_FLOAT: {
672 float f = mirror->float_field(fd->offset());
673 _out->print_cr("%d", *(int*)&f);
674 break;
675 }
676 case T_DOUBLE: {
677 double d = mirror->double_field(fd->offset());
678 _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
679 break;
680 }
681 case T_ARRAY: {
682 oop value = mirror->obj_field_acquire(fd->offset());
683 if (value == NULL) {
684 _out->print_cr("null");
685 } else {
686 typeArrayOop ta = (typeArrayOop)value;
687 _out->print("%d", ta->length());
688 if (value->is_objArray()) {
689 objArrayOop oa = (objArrayOop)value;
690 const char* klass_name = value->klass()->name()->as_quoted_ascii();
691 _out->print(" %s", klass_name);
692 }
693 _out->cr();
694 }
695 break;
696 }
697 case T_OBJECT: {
698 oop value = mirror->obj_field_acquire(fd->offset());
699 if (value == NULL) {
700 _out->print_cr("null");
701 } else if (value->is_instance()) {
702 if (value->is_a(SystemDictionary::String_klass())) {
703 const char* ascii_value = java_lang_String::as_quoted_ascii(value);
704 _out->print("\"%s\"", (ascii_value != NULL) ? ascii_value : "");
705 } else {
706 const char* klass_name = value->klass()->name()->as_quoted_ascii();
707 _out->print_cr("%s", klass_name);
708 }
709 } else {
710 ShouldNotReachHere();
711 }
712 break;
713 }
714 default:
715 ShouldNotReachHere();
716 }
717 }
718 }
719 };
720
721
722 void ciInstanceKlass::dump_replay_data(outputStream* out) {
723 ResourceMark rm;
724
725 InstanceKlass* ik = get_instanceKlass();
726 ConstantPool* cp = ik->constants();
727
728 // Try to record related loaded classes
729 Klass* sub = ik->subklass();
730 while (sub != NULL) {
731 if (sub->is_instance_klass()) {
732 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
733 }
734 sub = sub->next_sibling();
735 }
736
737 // Dump out the state of the constant pool tags. During replay the
738 // tags will be validated for things which shouldn't change and
739 // classes will be resolved if the tags indicate that they were
740 // resolved at compile time.
741 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
742 is_linked(), is_initialized(), cp->length());
743 for (int index = 1; index < cp->length(); index++) {
744 out->print(" %d", cp->tags()->at(index));
745 }
746 out->cr();
747 if (is_initialized()) {
748 // Dump out the static final fields in case the compilation relies
749 // on their value for correct replay.
750 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
751 ik->do_local_static_fields(&sffp);
752 }
753 }