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 "ci/ciValueKlass.hpp"
31 #include "classfile/systemDictionary.hpp"
32 #include "memory/allocation.hpp"
33 #include "memory/allocation.inline.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/fieldStreams.hpp"
36 #include "runtime/fieldDescriptor.hpp"
37
38 // ciInstanceKlass
39 //
40 // This class represents a Klass* in the HotSpot virtual machine
41 // whose Klass part in an InstanceKlass.
42
43 // ------------------------------------------------------------------
44 // ciInstanceKlass::ciInstanceKlass
45 //
46 // Loaded instance klass.
47 ciInstanceKlass::ciInstanceKlass(KlassHandle h_k) :
48 ciKlass(h_k)
49 {
50 assert(get_Klass()->is_instance_klass(), "wrong type");
51 assert(get_instanceKlass()->is_loaded(), "must be at least loaded");
52 InstanceKlass* ik = get_instanceKlass();
53
54 AccessFlags access_flags = ik->access_flags();
55 _flags = ciFlags(access_flags);
56 _has_finalizer = access_flags.has_finalizer();
57 _has_subklass = ik->subklass() != NULL;
58 _init_state = ik->init_state();
59 _nonstatic_field_size = ik->nonstatic_field_size();
60 _has_nonstatic_fields = ik->has_nonstatic_fields();
61 _has_default_methods = ik->has_default_methods();
62 _is_anonymous = ik->is_anonymous();
63 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields
64 _nof_declared_nonstatic_fields = -1; // initialized lazily by compute_nonstatic_fields
65 _has_injected_fields = -1;
66 _implementor = NULL; // we will fill these lazily
67
68 Thread *thread = Thread::current();
69 if (ciObjectFactory::is_initialized()) {
70 _loader = JNIHandles::make_local(thread, ik->class_loader());
71 _protection_domain = JNIHandles::make_local(thread,
72 ik->protection_domain());
73 _is_shared = false;
74 } else {
75 Handle h_loader(thread, ik->class_loader());
76 Handle h_protection_domain(thread, ik->protection_domain());
77 _loader = JNIHandles::make_global(h_loader);
78 _protection_domain = JNIHandles::make_global(h_protection_domain);
79 _is_shared = true;
80 }
81
82 // Lazy fields get filled in only upon request.
83 _super = NULL;
84 _java_mirror = NULL;
85
86 if (is_shared()) {
87 if (h_k() != SystemDictionary::Object_klass()) {
88 super();
89 }
90 //compute_nonstatic_fields(); // done outside of constructor
91 }
92
93 _field_cache = NULL;
94 }
95
96 // Version for unloaded classes:
97 ciInstanceKlass::ciInstanceKlass(ciSymbol* name,
98 jobject loader, jobject protection_domain)
99 : ciKlass(name, T_OBJECT)
100 {
101 assert(name->byte_at(0) != '[', "not an instance klass");
102 _init_state = (InstanceKlass::ClassState)0;
103 _nonstatic_field_size = -1;
104 _has_nonstatic_fields = false;
105 _nonstatic_fields = NULL; // initialized lazily by compute_nonstatic_fields
106 _nof_declared_nonstatic_fields = -1; // initialized lazily by compute_nonstatic_fields
107 _has_injected_fields = -1;
108 _is_anonymous = false;
109 _loader = loader;
110 _protection_domain = protection_domain;
111 _is_shared = false;
112 _super = NULL;
113 _java_mirror = NULL;
114 _field_cache = NULL;
115 }
116
117
118
119 // ------------------------------------------------------------------
120 // ciInstanceKlass::compute_shared_is_initialized
121 void ciInstanceKlass::compute_shared_init_state() {
122 GUARDED_VM_ENTRY(
123 InstanceKlass* ik = get_instanceKlass();
124 _init_state = ik->init_state();
125 )
126 }
127
128 // ------------------------------------------------------------------
129 // ciInstanceKlass::compute_shared_has_subklass
130 bool ciInstanceKlass::compute_shared_has_subklass() {
131 GUARDED_VM_ENTRY(
132 InstanceKlass* ik = get_instanceKlass();
133 _has_subklass = ik->subklass() != NULL;
134 return _has_subklass;
135 )
136 }
137
138 // ------------------------------------------------------------------
139 // ciInstanceKlass::loader
140 oop ciInstanceKlass::loader() {
141 ASSERT_IN_VM;
142 return JNIHandles::resolve(_loader);
143 }
144
145 // ------------------------------------------------------------------
146 // ciInstanceKlass::loader_handle
147 jobject ciInstanceKlass::loader_handle() {
148 return _loader;
149 }
150
151 // ------------------------------------------------------------------
152 // ciInstanceKlass::protection_domain
153 oop ciInstanceKlass::protection_domain() {
154 ASSERT_IN_VM;
155 return JNIHandles::resolve(_protection_domain);
156 }
157
158 // ------------------------------------------------------------------
159 // ciInstanceKlass::protection_domain_handle
160 jobject ciInstanceKlass::protection_domain_handle() {
161 return _protection_domain;
162 }
163
164 // ------------------------------------------------------------------
165 // ciInstanceKlass::field_cache
166 //
167 // Get the field cache associated with this klass.
168 ciConstantPoolCache* ciInstanceKlass::field_cache() {
169 if (is_shared()) {
170 return NULL;
171 }
172 if (_field_cache == NULL) {
173 assert(!is_java_lang_Object(), "Object has no fields");
174 Arena* arena = CURRENT_ENV->arena();
175 _field_cache = new (arena) ciConstantPoolCache(arena, 5);
176 }
177 return _field_cache;
178 }
179
180 // ------------------------------------------------------------------
181 // ciInstanceKlass::get_canonical_holder
182 //
183 ciInstanceKlass* ciInstanceKlass::get_canonical_holder(int offset) {
184 #ifdef ASSERT
185 if (!(offset >= 0 && offset < layout_helper())) {
186 tty->print("*** get_canonical_holder(%d) on ", offset);
187 this->print();
188 tty->print_cr(" ***");
189 };
190 assert(offset >= 0 && offset < layout_helper(), "offset must be tame");
191 #endif
192
193 if (offset < instanceOopDesc::base_offset_in_bytes()) {
194 // All header offsets belong properly to java/lang/Object.
195 return CURRENT_ENV->Object_klass();
196 }
197
198 ciInstanceKlass* self = this;
199 for (;;) {
200 assert(self->is_loaded(), "must be loaded to have size");
201 ciInstanceKlass* super = self->super();
202 if (super == NULL || super->nof_nonstatic_fields() == 0 ||
203 !super->contains_field_offset(offset)) {
204 return self;
205 } else {
206 self = super; // return super->get_canonical_holder(offset)
207 }
208 }
209 }
210
211 // ------------------------------------------------------------------
212 // ciInstanceKlass::is_java_lang_Object
213 //
214 // Is this klass java.lang.Object?
215 bool ciInstanceKlass::is_java_lang_Object() const {
216 return equals(CURRENT_ENV->Object_klass());
217 }
218
219 // ------------------------------------------------------------------
220 // ciInstanceKlass::uses_default_loader
221 bool ciInstanceKlass::uses_default_loader() const {
222 // Note: We do not need to resolve the handle or enter the VM
223 // in order to test null-ness.
224 return _loader == NULL;
225 }
226
227 // ------------------------------------------------------------------
228
229 /**
230 * Return basic type of boxed value for box klass or T_OBJECT if not.
231 */
232 BasicType ciInstanceKlass::box_klass_type() const {
233 if (uses_default_loader() && is_loaded()) {
234 return SystemDictionary::box_klass_type(get_Klass());
235 } else {
236 return T_OBJECT;
237 }
238 }
239
240 /**
241 * Is this boxing klass?
242 */
243 bool ciInstanceKlass::is_box_klass() const {
244 return is_java_primitive(box_klass_type());
245 }
246
247 /**
248 * Is this boxed value offset?
249 */
250 bool ciInstanceKlass::is_boxed_value_offset(int offset) const {
251 BasicType bt = box_klass_type();
252 return is_java_primitive(bt) &&
253 (offset == java_lang_boxing_object::value_offset_in_bytes(bt));
254 }
255
256 // ------------------------------------------------------------------
257 // ciInstanceKlass::is_in_package
258 //
259 // Is this klass in the given package?
260 bool ciInstanceKlass::is_in_package(const char* packagename, int len) {
261 // To avoid class loader mischief, this test always rejects application classes.
262 if (!uses_default_loader())
263 return false;
264 GUARDED_VM_ENTRY(
265 return is_in_package_impl(packagename, len);
266 )
267 }
268
269 bool ciInstanceKlass::is_in_package_impl(const char* packagename, int len) {
270 ASSERT_IN_VM;
271
272 // If packagename contains trailing '/' exclude it from the
273 // prefix-test since we test for it explicitly.
274 if (packagename[len - 1] == '/')
275 len--;
276
277 if (!name()->starts_with(packagename, len))
278 return false;
279
280 // Test if the class name is something like "java/lang".
281 if ((len + 1) > name()->utf8_length())
282 return false;
283
284 // Test for trailing '/'
285 if ((char) name()->byte_at(len) != '/')
286 return false;
287
288 // Make sure it's not actually in a subpackage:
289 if (name()->index_of_at(len+1, "/", 1) >= 0)
290 return false;
291
292 return true;
293 }
294
295 // ------------------------------------------------------------------
296 // ciInstanceKlass::print_impl
297 //
298 // Implementation of the print method.
299 void ciInstanceKlass::print_impl(outputStream* st) {
300 ciKlass::print_impl(st);
301 GUARDED_VM_ENTRY(st->print(" loader=" INTPTR_FORMAT, p2i((address)loader()));)
302 if (is_loaded()) {
303 st->print(" loaded=true initialized=%s finalized=%s subklass=%s size=%d flags=",
304 bool_to_str(is_initialized()),
305 bool_to_str(has_finalizer()),
306 bool_to_str(has_subklass()),
307 layout_helper());
308
309 _flags.print_klass_flags();
310
311 if (_super) {
312 st->print(" super=");
313 _super->print_name();
314 }
315 if (_java_mirror) {
316 st->print(" mirror=PRESENT");
317 }
318 } else {
319 st->print(" loaded=false");
320 }
321 }
322
323 // ------------------------------------------------------------------
324 // ciInstanceKlass::super
325 //
326 // Get the superklass of this klass.
327 ciInstanceKlass* ciInstanceKlass::super() {
328 assert(is_loaded(), "must be loaded");
329 if (_super == NULL && !is_java_lang_Object()) {
330 GUARDED_VM_ENTRY(
331 Klass* super_klass = get_instanceKlass()->super();
332 _super = CURRENT_ENV->get_instance_klass(super_klass);
333 )
334 }
335 return _super;
336 }
337
338 // ------------------------------------------------------------------
339 // ciInstanceKlass::java_mirror
340 //
341 // Get the instance of java.lang.Class corresponding to this klass.
342 // Cache it on this->_java_mirror.
343 ciInstance* ciInstanceKlass::java_mirror() {
344 if (is_shared()) {
345 return ciKlass::java_mirror();
346 }
347 if (_java_mirror == NULL) {
348 _java_mirror = ciKlass::java_mirror();
349 }
350 return _java_mirror;
351 }
352
353 // ------------------------------------------------------------------
354 // ciInstanceKlass::unique_concrete_subklass
355 ciInstanceKlass* ciInstanceKlass::unique_concrete_subklass() {
356 if (!is_loaded()) return NULL; // No change if class is not loaded
357 if (!is_abstract()) return NULL; // Only applies to abstract classes.
358 if (!has_subklass()) return NULL; // Must have at least one subklass.
359 VM_ENTRY_MARK;
360 InstanceKlass* ik = get_instanceKlass();
361 Klass* up = ik->up_cast_abstract();
362 assert(up->is_instance_klass(), "must be InstanceKlass");
363 if (ik == up) {
364 return NULL;
365 }
366 return CURRENT_THREAD_ENV->get_instance_klass(up);
367 }
368
369 // ------------------------------------------------------------------
370 // ciInstanceKlass::has_finalizable_subclass
371 bool ciInstanceKlass::has_finalizable_subclass() {
372 if (!is_loaded()) return true;
373 VM_ENTRY_MARK;
374 return Dependencies::find_finalizable_subclass(get_instanceKlass()) != NULL;
375 }
376
377 // ------------------------------------------------------------------
378 // ciInstanceKlass::get_field_by_offset
379 ciField* ciInstanceKlass::get_field_by_offset(int field_offset, bool is_static) {
380 if (!is_static) {
381 for (int i = 0, len = nof_nonstatic_fields(); i < len; i++) {
382 ciField* field = _nonstatic_fields->at(i);
383 int field_off = field->offset_in_bytes();
384 if (field_off == field_offset)
385 return field;
386 if (field_off > field_offset)
387 break;
388 // could do binary search or check bins, but probably not worth it
389 }
390 return NULL;
391 }
392 VM_ENTRY_MARK;
393 InstanceKlass* k = get_instanceKlass();
394 fieldDescriptor fd;
395 if (!k->find_field_from_offset(field_offset, is_static, &fd)) {
396 return NULL;
397 }
398 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
399 return field;
400 }
401
402 // ------------------------------------------------------------------
403 // ciInstanceKlass::get_field_type_by_offset
404 ciType* ciInstanceKlass::get_field_type_by_offset(int field_offset) {
405 ASSERT_IN_VM;
406 fieldDescriptor fd;
407 InstanceKlass* klass = get_instanceKlass();
408 // Important: We cannot get the field type via get_field_by_offset() because if the field
409 // is another value type, the offset would refer to the first field of that value type due
410 // to flattening. Instead, do a SystemDictionary lookup for the type of the declared field.
411 bool found = klass->find_field_from_offset(field_offset, false, &fd);
412 assert(found, "field not found");
413 BasicType field_type = fd.field_type();
414 if (is_java_primitive(field_type)) {
415 // Primitive type
416 return ciType::make(field_type);
417 } else {
418 // Do a SystemDictionary lookup for the type
419 ciEnv* env = CURRENT_ENV;
420 ciSymbol* signature = env->get_symbol(fd.signature());
421 return env->get_klass_by_name_impl(this, constantPoolHandle(), signature, false);
422 }
423 }
424
425 // ------------------------------------------------------------------
426 // ciInstanceKlass::get_field_by_name
427 ciField* ciInstanceKlass::get_field_by_name(ciSymbol* name, ciSymbol* signature, bool is_static) {
428 VM_ENTRY_MARK;
429 InstanceKlass* k = get_instanceKlass();
430 fieldDescriptor fd;
431 Klass* def = k->find_field(name->get_symbol(), signature->get_symbol(), is_static, &fd);
432 if (def == NULL) {
433 return NULL;
434 }
435 ciField* field = new (CURRENT_THREAD_ENV->arena()) ciField(&fd);
436 return field;
437 }
438
439
440 static int sort_field_by_offset(ciField** a, ciField** b) {
441 return (*a)->offset_in_bytes() - (*b)->offset_in_bytes();
442 // (no worries about 32-bit overflow...)
443 }
444
445 // ------------------------------------------------------------------
446 // ciInstanceKlass::compute_nonstatic_fields
447 int ciInstanceKlass::compute_nonstatic_fields() {
448 assert(is_loaded(), "must be loaded");
449
450 if (_nonstatic_fields != NULL)
451 return _nonstatic_fields->length();
452
453 if (!has_nonstatic_fields()) {
454 Arena* arena = CURRENT_ENV->arena();
455 _nonstatic_fields = new (arena) GrowableArray<ciField*>(arena, 0, 0, NULL);
456 _nof_declared_nonstatic_fields = 0;
457 return 0;
458 }
459 assert(!is_java_lang_Object(), "bootstrap OK");
460
461 // Size in bytes of my fields, including inherited fields.
462 int fsize = nonstatic_field_size() * heapOopSize;
463
464 ciInstanceKlass* super = this->super();
465 GrowableArray<ciField*>* super_fields = NULL;
466 if (super != NULL && super->has_nonstatic_fields()) {
467 int super_fsize = super->nonstatic_field_size() * heapOopSize;
468 int super_flen = super->nof_nonstatic_fields();
469 super_fields = super->_nonstatic_fields;
470 assert(super_flen == 0 || super_fields != NULL, "first get nof_fields");
471 // See if I am no larger than my super; if so, I can use his fields.
472 if (fsize == super_fsize) {
473 _nonstatic_fields = super_fields;
474 _nof_declared_nonstatic_fields = super->nof_declared_nonstatic_fields();
475 return super_fields->length();
476 }
477 }
478
479 GrowableArray<ciField*>* fields = NULL;
480 GUARDED_VM_ENTRY({
481 fields = compute_nonstatic_fields_impl(super_fields);
482 });
483
484 if (fields == NULL) {
485 // This can happen if this class (java.lang.Class) has invisible fields.
486 if (super_fields != NULL) {
487 _nonstatic_fields = super_fields;
488 _nof_declared_nonstatic_fields = super->nof_declared_nonstatic_fields();
489 return super_fields->length();
490 } else {
491 _nof_declared_nonstatic_fields = 0;
492 return 0;
493 }
494 }
495
496 int flen = fields->length();
497
498 // Now sort them by offset, ascending.
499 // (In principle, they could mix with superclass fields.)
500 fields->sort(sort_field_by_offset);
501 _nonstatic_fields = fields;
502 return flen;
503 }
504
505 GrowableArray<ciField*>*
506 ciInstanceKlass::compute_nonstatic_fields_impl(GrowableArray<ciField*>*
507 super_fields) {
508 ASSERT_IN_VM;
509 Arena* arena = CURRENT_ENV->arena();
510 int flen = 0;
511 GrowableArray<ciField*>* fields = NULL;
512 InstanceKlass* k = get_instanceKlass();
513 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
514 if (fs.access_flags().is_static()) continue;
515 flen += 1;
516 }
517
518 // allocate the array:
519 if (flen == 0) {
520 _nof_declared_nonstatic_fields = flen;
521 return NULL; // return nothing if none are locally declared
522 }
523
524 if (super_fields != NULL) {
525 flen += super_fields->length();
526 }
527 _nof_declared_nonstatic_fields = flen;
528
529 fields = new (arena) GrowableArray<ciField*>(arena, flen, 0, NULL);
530 if (super_fields != NULL) {
531 fields->appendAll(super_fields);
532 }
533
534 for (JavaFieldStream fs(k); !fs.done(); fs.next()) {
535 if (fs.access_flags().is_static()) continue;
536 fieldDescriptor& fd = fs.field_descriptor();
537 if (fd.field_type() == T_VALUETYPE) {
538 // Value type fields are embedded
539 int field_offset = fd.offset();
540 // Get ValueKlass and adjust number of fields
541 ciValueKlass* vk = get_field_type_by_offset(field_offset)->as_value_klass();
542 flen += vk->flattened_field_count() - 1;
543 // Iterate over fields of the flattened value type and copy them to 'this'
544 for (int i = 0; i < vk->nof_nonstatic_fields(); ++i) {
545 ciField* flattened_field = vk->nonstatic_field_at(i);
546 // Adjust offset to account for missing oop header
547 int offset = field_offset + (flattened_field->offset() - vk->first_field_offset());
548 // A flattened field can be treated as final if the non-flattened
549 // field is declared final or the holder klass is a value type itself.
550 bool is_final = fd.is_final() || is_valuetype();
551 ciField* field = new (arena) ciField(flattened_field, this, offset, is_final);
552 fields->append(field);
553 }
554 } else {
555 ciField* field = new (arena) ciField(&fd);
556 fields->append(field);
557 }
558 }
559 assert(fields->length() == flen, "sanity");
560 return fields;
561 }
562
563 bool ciInstanceKlass::compute_injected_fields_helper() {
564 ASSERT_IN_VM;
565 InstanceKlass* k = get_instanceKlass();
566
567 for (InternalFieldStream fs(k); !fs.done(); fs.next()) {
568 if (fs.access_flags().is_static()) continue;
569 return true;
570 }
571 return false;
572 }
573
574 void ciInstanceKlass::compute_injected_fields() {
575 assert(is_loaded(), "must be loaded");
576
577 int has_injected_fields = 0;
578 if (super() != NULL && super()->has_injected_fields()) {
579 has_injected_fields = 1;
580 } else {
581 GUARDED_VM_ENTRY({
582 has_injected_fields = compute_injected_fields_helper() ? 1 : 0;
583 });
584 }
585 // may be concurrently initialized for shared ciInstanceKlass objects
586 assert(_has_injected_fields == -1 || _has_injected_fields == has_injected_fields, "broken concurrent initialization");
587 _has_injected_fields = has_injected_fields;
588 }
589
590 // ------------------------------------------------------------------
591 // ciInstanceKlass::find_method
592 //
593 // Find a method in this klass.
594 ciMethod* ciInstanceKlass::find_method(ciSymbol* name, ciSymbol* signature) {
595 VM_ENTRY_MARK;
596 InstanceKlass* k = get_instanceKlass();
597 Symbol* name_sym = name->get_symbol();
598 Symbol* sig_sym= signature->get_symbol();
599
600 Method* m = k->find_method(name_sym, sig_sym);
601 if (m == NULL) return NULL;
602
603 return CURRENT_THREAD_ENV->get_method(m);
604 }
605
606 // ------------------------------------------------------------------
607 // ciInstanceKlass::is_leaf_type
608 bool ciInstanceKlass::is_leaf_type() {
609 assert(is_loaded(), "must be loaded");
610 if (is_shared()) {
611 return is_final(); // approximately correct
612 } else {
613 return !_has_subklass && (nof_implementors() == 0);
614 }
615 }
616
617 // ------------------------------------------------------------------
618 // ciInstanceKlass::implementor
619 //
620 // Report an implementor of this interface.
621 // Note that there are various races here, since my copy
622 // of _nof_implementors might be out of date with respect
623 // to results returned by InstanceKlass::implementor.
624 // This is OK, since any dependencies we decide to assert
625 // will be checked later under the Compile_lock.
626 ciInstanceKlass* ciInstanceKlass::implementor() {
627 ciInstanceKlass* impl = _implementor;
628 if (impl == NULL) {
629 // Go into the VM to fetch the implementor.
630 {
631 VM_ENTRY_MARK;
632 Klass* k = get_instanceKlass()->implementor();
633 if (k != NULL) {
634 if (k == get_instanceKlass()) {
635 // More than one implementors. Use 'this' in this case.
636 impl = this;
637 } else {
638 impl = CURRENT_THREAD_ENV->get_instance_klass(k);
639 }
640 }
641 }
642 // Memoize this result.
643 if (!is_shared()) {
644 _implementor = impl;
645 }
646 }
647 return impl;
648 }
649
650 // Utility class for printing of the contents of the static fields for
651 // use by compilation replay. It only prints out the information that
652 // could be consumed by the compiler, so for primitive types it prints
653 // out the actual value. For Strings it's the actual string value.
654 // For array types it it's first level array size since that's the
655 // only value which statically unchangeable. For all other reference
656 // types it simply prints out the dynamic type.
657
658 class StaticFinalFieldPrinter : public FieldClosure {
659 outputStream* _out;
660 const char* _holder;
661 public:
662 StaticFinalFieldPrinter(outputStream* out, const char* holder) :
663 _out(out),
664 _holder(holder) {
665 }
666 void do_field(fieldDescriptor* fd) {
667 if (fd->is_final() && !fd->has_initial_value()) {
668 ResourceMark rm;
669 oop mirror = fd->field_holder()->java_mirror();
670 _out->print("staticfield %s %s %s ", _holder, fd->name()->as_quoted_ascii(), fd->signature()->as_quoted_ascii());
671 switch (fd->field_type()) {
672 case T_BYTE: _out->print_cr("%d", mirror->byte_field(fd->offset())); break;
673 case T_BOOLEAN: _out->print_cr("%d", mirror->bool_field(fd->offset())); break;
674 case T_SHORT: _out->print_cr("%d", mirror->short_field(fd->offset())); break;
675 case T_CHAR: _out->print_cr("%d", mirror->char_field(fd->offset())); break;
676 case T_INT: _out->print_cr("%d", mirror->int_field(fd->offset())); break;
677 case T_LONG: _out->print_cr(INT64_FORMAT, (int64_t)(mirror->long_field(fd->offset()))); break;
678 case T_FLOAT: {
679 float f = mirror->float_field(fd->offset());
680 _out->print_cr("%d", *(int*)&f);
681 break;
682 }
683 case T_DOUBLE: {
684 double d = mirror->double_field(fd->offset());
685 _out->print_cr(INT64_FORMAT, *(int64_t*)&d);
686 break;
687 }
688 case T_ARRAY: {
689 oop value = mirror->obj_field_acquire(fd->offset());
690 if (value == NULL) {
691 _out->print_cr("null");
692 } else {
693 typeArrayOop ta = (typeArrayOop)value;
694 _out->print("%d", ta->length());
695 if (value->is_objArray()) {
696 objArrayOop oa = (objArrayOop)value;
697 const char* klass_name = value->klass()->name()->as_quoted_ascii();
698 _out->print(" %s", klass_name);
699 }
700 _out->cr();
701 }
702 break;
703 }
704 case T_OBJECT: {
705 oop value = mirror->obj_field_acquire(fd->offset());
706 if (value == NULL) {
707 _out->print_cr("null");
708 } else if (value->is_instance()) {
709 if (value->is_a(SystemDictionary::String_klass())) {
710 _out->print("\"");
711 _out->print_raw(java_lang_String::as_quoted_ascii(value));
712 _out->print_cr("\"");
713 } else {
714 const char* klass_name = value->klass()->name()->as_quoted_ascii();
715 _out->print_cr("%s", klass_name);
716 }
717 } else {
718 ShouldNotReachHere();
719 }
720 break;
721 }
722 default:
723 ShouldNotReachHere();
724 }
725 }
726 }
727 };
728
729
730 void ciInstanceKlass::dump_replay_data(outputStream* out) {
731 ResourceMark rm;
732
733 InstanceKlass* ik = get_instanceKlass();
734 ConstantPool* cp = ik->constants();
735
736 // Try to record related loaded classes
737 Klass* sub = ik->subklass();
738 while (sub != NULL) {
739 if (sub->is_instance_klass()) {
740 out->print_cr("instanceKlass %s", sub->name()->as_quoted_ascii());
741 }
742 sub = sub->next_sibling();
743 }
744
745 // Dump out the state of the constant pool tags. During replay the
746 // tags will be validated for things which shouldn't change and
747 // classes will be resolved if the tags indicate that they were
748 // resolved at compile time.
749 out->print("ciInstanceKlass %s %d %d %d", ik->name()->as_quoted_ascii(),
750 is_linked(), is_initialized(), cp->length());
751 for (int index = 1; index < cp->length(); index++) {
752 out->print(" %d", cp->tags()->at(index));
753 }
754 out->cr();
755 if (is_initialized()) {
756 // Dump out the static final fields in case the compilation relies
757 // on their value for correct replay.
758 StaticFinalFieldPrinter sffp(out, ik->name()->as_quoted_ascii());
759 ik->do_local_static_fields(&sffp);
760 }
761 }