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 _nof_declared_nonstatic_fields = -1; // initialized lazily by compute_nonstatic_fields
64 _has_injected_fields = -1;
65 _implementor = NULL; // we will fill these lazily
66
67 Thread *thread = Thread::current();
68 if (ciObjectFactory::is_initialized()) {
69 _loader = JNIHandles::make_local(thread, ik->class_loader());
70 _protection_domain = JNIHandles::make_local(thread,
71 ik->protection_domain());
72 _is_shared = false;
73 } else {
74 Handle h_loader(thread, ik->class_loader());
75 Handle h_protection_domain(thread, ik->protection_domain());
76 _loader = JNIHandles::make_global(h_loader);
77 _protection_domain = JNIHandles::make_global(h_protection_domain);
78 _is_shared = true;
79 }
80
81 // Lazy fields get filled in only upon request.
82 _super = NULL;
83 _java_mirror = NULL;
84
85 if (is_shared()) {
86 if (h_k() != SystemDictionary::Object_klass()) {
87 super();
88 }
89 //compute_nonstatic_fields(); // done outside of constructor
90 }
91
92 _field_cache = NULL;
93 }
94
95 // Version for unloaded classes:
96 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
97 jobject loader, jobject protection_domain)
98 : ciKlass(name, T_OBJECT)
99 {
100 assert(name->byte_at(0) != '[', "not an instance klass");
101 _init_state = (InstanceKlass::ClassState)0;
102 _nonstatic_field_size = -1;
103 _has_nonstatic_fields = false;
104 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields
105 _nof_declared_nonstatic_fields = -1; // initialized lazily by compute_nonstatic_fields
106 _has_injected_fields = -1;
107 _is_anonymous = false;
108 _loader = loader;
109 _protection_domain = protection_domain;
110 _is_shared = false;
111 _super = NULL;
112 _java_mirror = NULL;
113 _field_cache = NULL;
114 }
115
116
117
118 // ------------------------------------------------------------------
119 // ciInstanceKlass::compute_shared_is_initialized
120 void ciInstanceKlass::compute_shared_init_state() {
121 GUARDED_VM_ENTRY(
122 InstanceKlass* ik = get_instanceKlass();
123 _init_state = ik->init_state();
124 )
125 }
126
127 // ------------------------------------------------------------------
128 // ciInstanceKlass::compute_shared_has_subklass
129 bool ciInstanceKlass::compute_shared_has_subklass() {
130 GUARDED_VM_ENTRY(
131 InstanceKlass* ik = get_instanceKlass();
132 _has_subklass = ik->subklass() != NULL;
133 return _has_subklass;
134 )
135 }
136
137 // ------------------------------------------------------------------
138 // ciInstanceKlass::loader
139 oop ciInstanceKlass::loader() {
140 ASSERT_IN_VM;
141 return JNIHandles::resolve(_loader);
142 }
143
144 // ------------------------------------------------------------------
145 // ciInstanceKlass::loader_handle
146 jobject ciInstanceKlass::loader_handle() {
147 return _loader;
148 }
149
150 // ------------------------------------------------------------------
151 // ciInstanceKlass::protection_domain
152 oop ciInstanceKlass::protection_domain() {
153 ASSERT_IN_VM;
154 return JNIHandles::resolve(_protection_domain);
155 }
156
157 // ------------------------------------------------------------------
158 // ciInstanceKlass::protection_domain_handle
159 jobject ciInstanceKlass::protection_domain_handle() {
160 return _protection_domain;
161 }
162
163 // ------------------------------------------------------------------
164 // ciInstanceKlass::field_cache
165 //
166 // Get the field cache associated with this klass.
167 ciConstantPoolCache* ciInstanceKlass::field_cache() {
168 if (is_shared()) {
169 return NULL;
170 }
171 if (_field_cache == NULL) {
172 assert(!is_java_lang_Object(), "Object has no fields");
173 Arena* arena = CURRENT_ENV->arena();
174 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
175 }
176 return _field_cache;
177 }
178
179 // ------------------------------------------------------------------
180 // ciInstanceKlass::get_canonical_holder
181 //
182 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
183 #ifdef ASSERT
184 if (!(offset >= 0 && offset < layout_helper())) {
185 tty->print("*** get_canonical_holder(%d) on ", offset);
186 this->print();
187 tty->print_cr(" ***");
188 };
189 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
190 #endif
191
192 if (offset < instanceOopDesc::base_offset_in_bytes()) {
193 // All header offsets belong properly to java/lang/Object.
194 return CURRENT_ENV->Object_klass();
195 }
196
197 ciInstanceKlass* self = this;
198 for (;;) {
199 assert(self->is_loaded(), "must be loaded to have size");
200 ciInstanceKlass* super = self->super();
201 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
202 !super->contains_field_offset(offset)) {
203 return self;
204 } else {
205 self = super; // return super->get_canonical_holder(offset)
206 }
207 }
208 }
209
210 // ------------------------------------------------------------------
211 // ciInstanceKlass::is_java_lang_Object
212 //
213 // Is this klass java.lang.Object?
214 bool ciInstanceKlass::is_java_lang_Object() const {
215 return equals(CURRENT_ENV->Object_klass());
216 }
217
218 // ------------------------------------------------------------------
219 // ciInstanceKlass::uses_default_loader
220 bool ciInstanceKlass::uses_default_loader() const {
221 // Note: We do not need to resolve the handle or enter the VM
222 // in order to test null-ness.
223 return _loader == NULL;
224 }
225
226 // ------------------------------------------------------------------
227
228 /**
229 * Return basic type of boxed value for box klass or T_OBJECT if not.
230 */
231 BasicType ciInstanceKlass::box_klass_type() const {
232 if (uses_default_loader() && is_loaded()) {
233 return SystemDictionary::box_klass_type(get_Klass());
234 } else {
235 return T_OBJECT;
236 }
237 }
238
239 /**
240 * Is this boxing klass?
241 */
242 bool ciInstanceKlass::is_box_klass() const {
243 return is_java_primitive(box_klass_type());
244 }
245
246 /**
247 * Is this boxed value offset?
248 */
249 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
250 BasicType bt = box_klass_type();
251 return is_java_primitive(bt) &&
252 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
253 }
254
255 // ------------------------------------------------------------------
256 // ciInstanceKlass::is_in_package
257 //
258 // Is this klass in the given package?
259 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
260 // To avoid class loader mischief, this test always rejects application classes.
261 if (!uses_default_loader())
262 return false;
263 GUARDED_VM_ENTRY(
264 return is_in_package_impl(packagename, len);
265 )
266 }
267
268 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
269 ASSERT_IN_VM;
270
271 // If packagename contains trailing '/' exclude it from the
272 // prefix-test since we test for it explicitly.
273 if (packagename[len - 1] == '/')
274 len--;
275
276 if (!name()->starts_with(packagename, len))
277 return false;
278
279 // Test if the class name is something like "java/lang".
280 if ((len + 1) > name()->utf8_length())
281 return false;
282
283 // Test for trailing '/'
284 if ((char) name()->byte_at(len) != '/')
285 return false;
286
287 // Make sure it's not actually in a subpackage:
288 if (name()->index_of_at(len+1, "/", 1) >= 0)
289 return false;
290
291 return true;
292 }
293
294 // ------------------------------------------------------------------
295 // ciInstanceKlass::print_impl
296 //
297 // Implementation of the print method.
298 void ciInstanceKlass::print_impl(outputStream* st) {
299 ciKlass::print_impl(st);
300 GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
301 if (is_loaded()) {
302 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
303 bool_to_str(is_initialized()),
304 bool_to_str(has_finalizer()),
305 bool_to_str(has_subklass()),
306 layout_helper());
307
308 _flags.print_klass_flags();
309
310 if (_super) {
311 st->print(" super=");
312 _super->print_name();
313 }
314 if (_java_mirror) {
315 st->print(" mirror=PRESENT");
316 }
317 } else {
318 st->print(" loaded=false");
319 }
320 }
321
322 // ------------------------------------------------------------------
323 // ciInstanceKlass::super
324 //
325 // Get the superklass of this klass.
326 ciInstanceKlass* ciInstanceKlass::super() {
327 assert(is_loaded(), "must be loaded");
328 if (_super == NULL && !is_java_lang_Object()) {
329 GUARDED_VM_ENTRY(
330 Klass* super_klass = get_instanceKlass()->super();
331 _super = CURRENT_ENV->get_instance_klass(super_klass);
332 )
333 }
334 return _super;
335 }
336
337 // ------------------------------------------------------------------
338 // ciInstanceKlass::java_mirror
339 //
340 // Get the instance of java.lang.Class corresponding to this klass.
341 // Cache it on this->_java_mirror.
342 ciInstance* ciInstanceKlass::java_mirror() {
343 if (is_shared()) {
344 return ciKlass::java_mirror();
345 }
346 if (_java_mirror == NULL) {
347 _java_mirror = ciKlass::java_mirror();
348 }
349 return _java_mirror;
350 }
351
352 // ------------------------------------------------------------------
353 // ciInstanceKlass::unique_concrete_subklass
354 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
355 if (!is_loaded()) return NULL; // No change if class is not loaded
356 if (!is_abstract()) return NULL; // Only applies to abstract classes.
357 if (!has_subklass()) return NULL; // Must have at least one subklass.
358 VM_ENTRY_MARK;
359 InstanceKlass* ik = get_instanceKlass();
360 Klass* up = ik->up_cast_abstract();
361 assert(up->is_instance_klass(), "must be InstanceKlass");
362 if (ik == up) {
363 return NULL;
364 }
365 return CURRENT_THREAD_ENV->get_instance_klass(up);
366 }
367
368 // ------------------------------------------------------------------
369 // ciInstanceKlass::has_finalizable_subclass
370 bool ciInstanceKlass::has_finalizable_subclass() {
371 if (!is_loaded()) return true;
372 VM_ENTRY_MARK;
373 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
374 }
375
376 // ------------------------------------------------------------------
377 // ciInstanceKlass::get_field_by_offset
378 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
379 if (!is_static) {
380 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
381 ciField* field = _nonstatic_fields->at(i);
382 int field_off = field->offset_in_bytes();
383 if (field_off == field_offset)
384 return field;
385 if (field_off > field_offset)
386 break;
387 // could do binary search or check bins, but probably not worth it
388 }
389 return NULL;
390 }
391 VM_ENTRY_MARK;
392 InstanceKlass* k = get_instanceKlass();
393 fieldDescriptor fd;
394 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
395 return NULL;
396 }
397 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
398 return field;
399 }
400
401 // ------------------------------------------------------------------
402 // ciInstanceKlass::get_field_type_by_offset
403 ciType* ciInstanceKlass::get_field_type_by_offset(int field_offset) {
404 ASSERT_IN_VM;
405 fieldDescriptor fd;
406 InstanceKlass* klass = get_instanceKlass();
407 // Important: We cannot get the field type via get_field_by_offset() because if the field
408 // is another value type, the offset would refer to the first field of that value type due
409 // to flattening. Instead, do a SystemDictionary lookup for the type of the declared field.
410 bool found = klass->find_field_from_offset(field_offset, false, &fd);
411 assert(found, "field not found");
412 BasicType field_type = fd.field_type();
413 if (is_java_primitive(field_type)) {
414 // Primitive type
415 return ciType::make(field_type);
416 } else {
417 // Do a SystemDictionary lookup for the type
418 ciEnv* env = CURRENT_ENV;
419 ciSymbol* signature = env->get_symbol(fd.signature());
420 return env->get_klass_by_name_impl(this, constantPoolHandle(), signature, false);
421 }
422 }
423
424 // ------------------------------------------------------------------
425 // ciInstanceKlass::get_field_by_name
426 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
427 VM_ENTRY_MARK;
428 InstanceKlass* k = get_instanceKlass();
429 fieldDescriptor fd;
430 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
431 if (def == NULL) {
432 return NULL;
433 }
434 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
435 return field;
436 }
437
438
439 static int sort_field_by_offset(ciField** a, ciField** b) {
440 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
441 // (no worries about 32-bit overflow...)
442 }
443
444 // ------------------------------------------------------------------
445 // ciInstanceKlass::compute_nonstatic_fields
446 int ciInstanceKlass::compute_nonstatic_fields() {
447 assert(is_loaded(), "must be loaded");
448
449 if (_nonstatic_fields != NULL)
450 return _nonstatic_fields->length();
451
452 if (!has_nonstatic_fields()) {
453 Arena* arena = CURRENT_ENV->arena();
454 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
455 _nof_declared_nonstatic_fields = 0;
456 return 0;
457 }
458 assert(!is_java_lang_Object(), "bootstrap OK");
459
460 // Size in bytes of my fields, including inherited fields.
461 int fsize = nonstatic_field_size() * heapOopSize;
462
463 ciInstanceKlass* super = this->super();
464 GrowableArray<ciField*>* super_fields = NULL;
465 if (super != NULL && super->has_nonstatic_fields()) {
466 int super_fsize = super->nonstatic_field_size() * heapOopSize;
467 int super_flen = super->nof_nonstatic_fields();
468 super_fields = super->_nonstatic_fields;
469 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
470 // See if I am no larger than my super; if so, I can use his fields.
471 if (fsize == super_fsize) {
472 _nonstatic_fields = super_fields;
473 _nof_declared_nonstatic_fields = super->nof_declared_nonstatic_fields();
474 return super_fields->length();
475 }
476 }
477
478 GrowableArray<ciField*>* fields = NULL;
479 GUARDED_VM_ENTRY({
480 fields = compute_nonstatic_fields_impl(super_fields);
481 });
482
483 if (fields == NULL) {
484 // This can happen if this class (java.lang.Class) has invisible fields.
485 if (super_fields != NULL) {
486 _nonstatic_fields = super_fields;
487 _nof_declared_nonstatic_fields = super->nof_declared_nonstatic_fields();
488 return super_fields->length();
489 } else {
490 _nof_declared_nonstatic_fields = 0;
491 return 0;
492 }
493 }
494
495 int flen = fields->length();
496
497 // Now sort them by offset, ascending.
498 // (In principle, they could mix with superclass fields.)
499 fields->sort(sort_field_by_offset);
500 _nonstatic_fields = fields;
501 return flen;
502 }
503
504 GrowableArray<ciField*>*
505 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
506 super_fields) {
507 ASSERT_IN_VM;
508 Arena* arena = CURRENT_ENV->arena();
509 int flen = 0;
510 GrowableArray<ciField*>* fields = NULL;
511 InstanceKlass* k = get_instanceKlass();
512 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
513 if (fs.access_flags().is_static()) continue;
514 flen += 1;
515 }
516
517 // allocate the array:
518 if (flen == 0) {
519 _nof_declared_nonstatic_fields = flen;
520 return NULL; // return nothing if none are locally declared
521 }
522
523 if (super_fields != NULL) {
524 flen += super_fields->length();
525 }
526 _nof_declared_nonstatic_fields = flen;
527
528 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
529 if (super_fields != NULL) {
530 fields->appendAll(super_fields);
531 }
532
533 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
534 if (fs.access_flags().is_static()) continue;
535 fieldDescriptor& fd = fs.field_descriptor();
536 if (fd.field_type() == T_VALUETYPE) {
537 // Value type fields are embedded
538 int field_offset = fd.offset();
539 // Get ValueKlass and adjust number of fields
540 ciValueKlass* vk = get_field_type_by_offset(field_offset)->as_value_klass();
541 flen += vk->get_field_count() - 1;
542 // Iterate over fields of flattened value type and copy them to 'this'
543 for (int i = 0; i < vk->nof_nonstatic_fields(); ++i) {
544 ciField* flattened_field = vk->nonstatic_field_at(i);
545 // Adjust offset to account for missing oop header
546 int offset = field_offset + (flattened_field->offset() - vk->get_first_field_offset());
547 bool is_final = is_valuetype(); // flattened fields are final if holder is a value type
548 ciField* field = new (arena) ciField(flattened_field, this, offset, is_final);
549 fields->append(field);
550 }
551 } else {
552 ciField* field = new (arena) ciField(&fd);
553 fields->append(field);
554 }
555 }
556 assert(fields->length() == flen, "sanity");
557 return fields;
558 }
559
560 bool ciInstanceKlass::compute_injected_fields_helper() {
561 ASSERT_IN_VM;
562 InstanceKlass* k = get_instanceKlass();
563
564 for (InternalFieldStream fs(k); !fs.done(); fs.next()) {
565 if (fs.access_flags().is_static()) continue;
566 return true;
567 }
568 return false;
569 }
570
571 void ciInstanceKlass::compute_injected_fields() {
572 assert(is_loaded(), "must be loaded");
573
574 int has_injected_fields = 0;
575 if (super() != NULL && super()->has_injected_fields()) {
576 has_injected_fields = 1;
577 } else {
578 GUARDED_VM_ENTRY({
579 has_injected_fields = compute_injected_fields_helper() ? 1 : 0;
580 });
581 }
582 // may be concurrently initialized for shared ciInstanceKlass objects
583 assert(_has_injected_fields == -1 || _has_injected_fields == has_injected_fields, "broken concurrent initialization");
584 _has_injected_fields = has_injected_fields;
585 }
586
587 // ------------------------------------------------------------------
588 // ciInstanceKlass::find_method
589 //
590 // Find a method in this klass.
591 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
592 VM_ENTRY_MARK;
593 InstanceKlass* k = get_instanceKlass();
594 Symbol* name_sym = name->get_symbol();
595 Symbol* sig_sym= signature->get_symbol();
596
597 Method* m = k->find_method(name_sym, sig_sym);
598 if (m == NULL) return NULL;
599
600 return CURRENT_THREAD_ENV->get_method(m);
601 }
602
603 // ------------------------------------------------------------------
604 // ciInstanceKlass::is_leaf_type
605 bool ciInstanceKlass::is_leaf_type() {
606 assert(is_loaded(), "must be loaded");
607 if (is_shared()) {
608 return is_final(); // approximately correct
609 } else {
610 return !_has_subklass && (nof_implementors() == 0);
611 }
612 }
613
614 // ------------------------------------------------------------------
615 // ciInstanceKlass::implementor
616 //
617 // Report an implementor of this interface.
618 // Note that there are various races here, since my copy
619 // of _nof_implementors might be out of date with respect
620 // to results returned by InstanceKlass::implementor.
621 // This is OK, since any dependencies we decide to assert
622 // will be checked later under the Compile_lock.
623 ciInstanceKlass* ciInstanceKlass::implementor() {
624 ciInstanceKlass* impl = _implementor;
625 if (impl == NULL) {
626 // Go into the VM to fetch the implementor.
627 {
628 VM_ENTRY_MARK;
629 Klass* k = get_instanceKlass()->implementor();
630 if (k != NULL) {
631 if (k == get_instanceKlass()) {
632 // More than one implementors. Use 'this' in this case.
633 impl = this;
634 } else {
635 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
636 }
637 }
638 }
639 // Memoize this result.
640 if (!is_shared()) {
641 _implementor = impl;
642 }
643 }
644 return impl;
645 }
646
647 // Utility class for printing of the contents of the static fields for
648 // use by compilation replay. It only prints out the information that
649 // could be consumed by the compiler, so for primitive types it prints
650 // out the actual value. For Strings it's the actual string value.
651 // For array types it it's first level array size since that's the
652 // only value which statically unchangeable. For all other reference
653 // types it simply prints out the dynamic type.
654
655 class StaticFinalFieldPrinter : public FieldClosure {
656 outputStream* _out;
657 const char* _holder;
658 public:
659 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
660 _out(out),
661 _holder(holder) {
662 }
663 void do_field(fieldDescriptor* fd) {
664 if (fd->is_final() && !fd->has_initial_value()) {
665 ResourceMark rm;
666 oop mirror = fd->field_holder()->java_mirror();
667 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
668 switch (fd->field_type()) {
669 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
670 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
671 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
672 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
673 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
674 case T_LONG: _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset()))); break;
675 case T_FLOAT: {
676 float f = mirror->float_field(fd->offset());
677 _out->print_cr("%d", *(int*)&f);
678 break;
679 }
680 case T_DOUBLE: {
681 double d = mirror->double_field(fd->offset());
682 _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
683 break;
684 }
685 case T_ARRAY: {
686 oop value = mirror->obj_field_acquire(fd->offset());
687 if (value == NULL) {
688 _out->print_cr("null");
689 } else {
690 typeArrayOop ta = (typeArrayOop)value;
691 _out->print("%d", ta->length());
692 if (value->is_objArray()) {
693 objArrayOop oa = (objArrayOop)value;
694 const char* klass_name = value->klass()->name()->as_quoted_ascii();
695 _out->print(" %s", klass_name);
696 }
697 _out->cr();
698 }
699 break;
700 }
701 case T_OBJECT: {
702 oop value = mirror->obj_field_acquire(fd->offset());
703 if (value == NULL) {
704 _out->print_cr("null");
705 } else if (value->is_instance()) {
706 if (value->is_a(SystemDictionary::String_klass())) {
707 _out->print("\"");
708 _out->print_raw(java_lang_String::as_quoted_ascii(value));
709 _out->print_cr("\"");
710 } else {
711 const char* klass_name = value->klass()->name()->as_quoted_ascii();
712 _out->print_cr("%s", klass_name);
713 }
714 } else {
715 ShouldNotReachHere();
716 }
717 break;
718 }
719 default:
720 ShouldNotReachHere();
721 }
722 }
723 }
724 };
725
726
727 void ciInstanceKlass::dump_replay_data(outputStream* out) {
728 ResourceMark rm;
729
730 InstanceKlass* ik = get_instanceKlass();
731 ConstantPool* cp = ik->constants();
732
733 // Try to record related loaded classes
734 Klass* sub = ik->subklass();
735 while (sub != NULL) {
736 if (sub->is_instance_klass()) {
737 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
738 }
739 sub = sub->next_sibling();
740 }
741
742 // Dump out the state of the constant pool tags. During replay the
743 // tags will be validated for things which shouldn't change and
744 // classes will be resolved if the tags indicate that they were
745 // resolved at compile time.
746 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
747 is_linked(), is_initialized(), cp->length());
748 for (int index = 1; index < cp->length(); index++) {
749 out->print(" %d", cp->tags()->at(index));
750 }
751 out->cr();
752 if (is_initialized()) {
753 // Dump out the static final fields in case the compilation relies
754 // on their value for correct replay.
755 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
756 ik->do_local_static_fields(&sffp);
757 }
758 }