49
50 template <class T> inline void update_barrier_set_pre(T* p, oop v) {
51 oopDesc::bs()->write_ref_field_pre(p, v);
52 }
53
54 template <class T> void oop_store(T* p, oop v) {
55 if (always_do_update_barrier) {
56 oop_store((volatile T*)p, v);
57 } else {
58 update_barrier_set_pre(p, v);
59 oopDesc::encode_store_heap_oop(p, v);
60 // always_do_update_barrier == false =>
61 // Either we are at a safepoint (in GC) or CMS is not used. In both
62 // cases it's unnecessary to mark the card as dirty with release sematics.
63 update_barrier_set((void*)p, v, false /* release */); // cast away type
64 }
65 }
66
67 template <class T> void oop_store(volatile T* p, oop v) {
68 update_barrier_set_pre((T*)p, v); // cast away volatile
69 // Used by release_obj_field_put, so use release_store_ptr.
70 oopDesc::release_encode_store_heap_oop(p, v);
71 // When using CMS we must mark the card corresponding to p as dirty
72 // with release sematics to prevent that CMS sees the dirty card but
73 // not the new value v at p due to reordering of the two
74 // stores. Note that CMS has a concurrent precleaning phase, where
75 // it reads the card table while the Java threads are running.
76 update_barrier_set((void*)p, v, true /* release */); // cast away type
77 }
78
79 // Should replace *addr = oop assignments where addr type depends on UseCompressedOops
80 // (without having to remember the function name this calls).
81 inline void oop_store_raw(HeapWord* addr, oop value) {
82 if (UseCompressedOops) {
83 oopDesc::encode_store_heap_oop((narrowOop*)addr, value);
84 } else {
85 oopDesc::encode_store_heap_oop((oop*)addr, value);
86 }
87 }
88
89 // Implementation of all inlined member functions defined in oop.hpp
90 // We need a separate file to avoid circular references
91
92 void oopDesc::release_set_mark(markOop m) {
93 OrderAccess::release_store_ptr(&_mark, m);
94 }
95
96 markOop oopDesc::cas_set_mark(markOop new_mark, markOop old_mark) {
97 return Atomic::cmpxchg(new_mark, &_mark, old_mark);
98 }
99
100 void oopDesc::init_mark() {
101 set_mark(markOopDesc::prototype_for_object(this));
102 }
103
104 Klass* oopDesc::klass() const {
105 if (UseCompressedClassPointers) {
106 return Klass::decode_klass_not_null(_metadata._compressed_klass);
107 } else {
108 return _metadata._klass;
109 }
110 }
111
112 Klass* oopDesc::klass_or_null() const volatile {
113 if (UseCompressedClassPointers) {
114 return Klass::decode_klass(_metadata._compressed_klass);
115 } else {
116 return _metadata._klass;
117 }
118 }
119
120 Klass* oopDesc::klass_or_null_acquire() const volatile {
121 if (UseCompressedClassPointers) {
122 // Workaround for non-const load_acquire parameter.
123 const volatile narrowKlass* addr = &_metadata._compressed_klass;
124 volatile narrowKlass* xaddr = const_cast<volatile narrowKlass*>(addr);
125 return Klass::decode_klass(OrderAccess::load_acquire(xaddr));
126 } else {
127 return (Klass*)OrderAccess::load_ptr_acquire(&_metadata._klass);
128 }
129 }
130
131 Klass** oopDesc::klass_addr() {
132 // Only used internally and with CMS and will not work with
133 // UseCompressedOops
134 assert(!UseCompressedClassPointers, "only supported with uncompressed klass pointers");
135 return (Klass**) &_metadata._klass;
136 }
137
138 narrowKlass* oopDesc::compressed_klass_addr() {
139 assert(UseCompressedClassPointers, "only called by compressed klass pointers");
140 return &_metadata._compressed_klass;
141 }
142
143 #define CHECK_SET_KLASS(k) \
144 do { \
145 assert(Universe::is_bootstrapping() || k != NULL, "NULL Klass"); \
146 assert(Universe::is_bootstrapping() || k->is_klass(), "not a Klass"); \
147 } while (0)
148
149 void oopDesc::set_klass(Klass* k) {
150 CHECK_SET_KLASS(k);
151 if (UseCompressedClassPointers) {
152 *compressed_klass_addr() = Klass::encode_klass_not_null(k);
153 } else {
154 *klass_addr() = k;
155 }
156 }
157
158 void oopDesc::release_set_klass(Klass* k) {
159 CHECK_SET_KLASS(k);
160 if (UseCompressedClassPointers) {
161 OrderAccess::release_store(compressed_klass_addr(),
162 Klass::encode_klass_not_null(k));
163 } else {
164 OrderAccess::release_store_ptr(klass_addr(), k);
165 }
166 }
167
168 #undef CHECK_SET_KLASS
169
170 int oopDesc::klass_gap() const {
171 return *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes());
172 }
173
174 void oopDesc::set_klass_gap(int v) {
175 if (UseCompressedClassPointers) {
176 *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes()) = v;
177 }
178 }
179
180 void oopDesc::set_klass_to_list_ptr(oop k) {
181 // This is only to be used during GC, for from-space objects, so no
182 // barrier is needed.
183 if (UseCompressedClassPointers) {
184 _metadata._compressed_klass = (narrowKlass)encode_heap_oop(k); // may be null (parnew overflow handling)
344 return decode_heap_oop_not_null(*p);
345 }
346
347 // Load and decode an oop out of the heap accepting null
348 oop oopDesc::load_decode_heap_oop(narrowOop* p) {
349 return decode_heap_oop(*p);
350 }
351
352 // Encode and store a heap oop.
353 void oopDesc::encode_store_heap_oop_not_null(narrowOop* p, oop v) {
354 *p = encode_heap_oop_not_null(v);
355 }
356
357 // Encode and store a heap oop allowing for null.
358 void oopDesc::encode_store_heap_oop(narrowOop* p, oop v) {
359 *p = encode_heap_oop(v);
360 }
361
362 // Store heap oop as is for volatile fields.
363 void oopDesc::release_store_heap_oop(volatile oop* p, oop v) {
364 OrderAccess::release_store_ptr(p, v);
365 }
366 void oopDesc::release_store_heap_oop(volatile narrowOop* p, narrowOop v) {
367 OrderAccess::release_store(p, v);
368 }
369
370 void oopDesc::release_encode_store_heap_oop_not_null(volatile narrowOop* p, oop v) {
371 // heap oop is not pointer sized.
372 OrderAccess::release_store(p, encode_heap_oop_not_null(v));
373 }
374 void oopDesc::release_encode_store_heap_oop_not_null(volatile oop* p, oop v) {
375 OrderAccess::release_store_ptr(p, v);
376 }
377
378 void oopDesc::release_encode_store_heap_oop(volatile oop* p, oop v) {
379 OrderAccess::release_store_ptr(p, v);
380 }
381 void oopDesc::release_encode_store_heap_oop(volatile narrowOop* p, oop v) {
382 OrderAccess::release_store(p, encode_heap_oop(v));
383 }
384
385 // These functions are only used to exchange oop fields in instances,
386 // not headers.
387 oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
388 if (UseCompressedOops) {
389 // encode exchange value from oop to T
390 narrowOop val = encode_heap_oop(exchange_value);
391 narrowOop old = (narrowOop)Atomic::xchg(val, (narrowOop*)dest);
392 // decode old from T to oop
393 return decode_heap_oop(old);
394 } else {
395 return (oop)Atomic::xchg_ptr(exchange_value, (oop*)dest);
396 }
397 }
398
399 oop oopDesc::atomic_compare_exchange_oop(oop exchange_value,
400 volatile HeapWord *dest,
401 oop compare_value,
402 bool prebarrier) {
403 if (UseCompressedOops) {
404 if (prebarrier) {
405 update_barrier_set_pre((narrowOop*)dest, exchange_value);
406 }
407 // encode exchange and compare value from oop to T
408 narrowOop val = encode_heap_oop(exchange_value);
409 narrowOop cmp = encode_heap_oop(compare_value);
410
411 narrowOop old = Atomic::cmpxchg(val, (narrowOop*)dest, cmp);
412 // decode old from T to oop
413 return decode_heap_oop(old);
414 } else {
415 if (prebarrier) {
430 void oopDesc::obj_field_put(int offset, oop value) {
431 UseCompressedOops ? oop_store(obj_field_addr<narrowOop>(offset), value) :
432 oop_store(obj_field_addr<oop>(offset), value);
433 }
434
435 void oopDesc::obj_field_put_raw(int offset, oop value) {
436 UseCompressedOops ?
437 encode_store_heap_oop(obj_field_addr<narrowOop>(offset), value) :
438 encode_store_heap_oop(obj_field_addr<oop>(offset), value);
439 }
440 void oopDesc::obj_field_put_volatile(int offset, oop value) {
441 OrderAccess::release();
442 obj_field_put(offset, value);
443 OrderAccess::fence();
444 }
445
446 Metadata* oopDesc::metadata_field(int offset) const { return *metadata_field_addr(offset); }
447 void oopDesc::metadata_field_put(int offset, Metadata* value) { *metadata_field_addr(offset) = value; }
448
449 Metadata* oopDesc::metadata_field_acquire(int offset) const {
450 return (Metadata*)OrderAccess::load_ptr_acquire(metadata_field_addr(offset));
451 }
452
453 void oopDesc::release_metadata_field_put(int offset, Metadata* value) {
454 OrderAccess::release_store_ptr(metadata_field_addr(offset), value);
455 }
456
457 jbyte oopDesc::byte_field(int offset) const { return (jbyte) *byte_field_addr(offset); }
458 void oopDesc::byte_field_put(int offset, jbyte contents) { *byte_field_addr(offset) = (jint) contents; }
459
460 jchar oopDesc::char_field(int offset) const { return (jchar) *char_field_addr(offset); }
461 void oopDesc::char_field_put(int offset, jchar contents) { *char_field_addr(offset) = (jint) contents; }
462
463 jboolean oopDesc::bool_field(int offset) const { return (jboolean) *bool_field_addr(offset); }
464 void oopDesc::bool_field_put(int offset, jboolean contents) { *bool_field_addr(offset) = (((jint) contents) & 1); }
465
466 jint oopDesc::int_field(int offset) const { return *int_field_addr(offset); }
467 void oopDesc::int_field_put(int offset, jint contents) { *int_field_addr(offset) = contents; }
468
469 jshort oopDesc::short_field(int offset) const { return (jshort) *short_field_addr(offset); }
470 void oopDesc::short_field_put(int offset, jshort contents) { *short_field_addr(offset) = (jint) contents;}
471
472 jlong oopDesc::long_field(int offset) const { return *long_field_addr(offset); }
473 void oopDesc::long_field_put(int offset, jlong contents) { *long_field_addr(offset) = contents; }
474
475 jfloat oopDesc::float_field(int offset) const { return *float_field_addr(offset); }
476 void oopDesc::float_field_put(int offset, jfloat contents) { *float_field_addr(offset) = contents; }
477
478 jdouble oopDesc::double_field(int offset) const { return *double_field_addr(offset); }
479 void oopDesc::double_field_put(int offset, jdouble contents) { *double_field_addr(offset) = contents; }
480
481 address oopDesc::address_field(int offset) const { return *address_field_addr(offset); }
482 void oopDesc::address_field_put(int offset, address contents) { *address_field_addr(offset) = contents; }
483
484 oop oopDesc::obj_field_acquire(int offset) const {
485 return UseCompressedOops ?
486 decode_heap_oop((narrowOop)
487 OrderAccess::load_acquire(obj_field_addr<narrowOop>(offset)))
488 : decode_heap_oop((oop)
489 OrderAccess::load_ptr_acquire(obj_field_addr<oop>(offset)));
490 }
491 void oopDesc::release_obj_field_put(int offset, oop value) {
492 UseCompressedOops ?
493 oop_store((volatile narrowOop*)obj_field_addr<narrowOop>(offset), value) :
494 oop_store((volatile oop*) obj_field_addr<oop>(offset), value);
495 }
496
497 jbyte oopDesc::byte_field_acquire(int offset) const { return OrderAccess::load_acquire(byte_field_addr(offset)); }
498 void oopDesc::release_byte_field_put(int offset, jbyte contents) { OrderAccess::release_store(byte_field_addr(offset), contents); }
499
500 jchar oopDesc::char_field_acquire(int offset) const { return OrderAccess::load_acquire(char_field_addr(offset)); }
501 void oopDesc::release_char_field_put(int offset, jchar contents) { OrderAccess::release_store(char_field_addr(offset), contents); }
502
503 jboolean oopDesc::bool_field_acquire(int offset) const { return OrderAccess::load_acquire(bool_field_addr(offset)); }
504 void oopDesc::release_bool_field_put(int offset, jboolean contents) { OrderAccess::release_store(bool_field_addr(offset), jboolean(contents & 1)); }
505
506 jint oopDesc::int_field_acquire(int offset) const { return OrderAccess::load_acquire(int_field_addr(offset)); }
507 void oopDesc::release_int_field_put(int offset, jint contents) { OrderAccess::release_store(int_field_addr(offset), contents); }
508
509 jshort oopDesc::short_field_acquire(int offset) const { return (jshort)OrderAccess::load_acquire(short_field_addr(offset)); }
510 void oopDesc::release_short_field_put(int offset, jshort contents) { OrderAccess::release_store(short_field_addr(offset), contents); }
511
512 jlong oopDesc::long_field_acquire(int offset) const { return OrderAccess::load_acquire(long_field_addr(offset)); }
513 void oopDesc::release_long_field_put(int offset, jlong contents) { OrderAccess::release_store(long_field_addr(offset), contents); }
514
515 jfloat oopDesc::float_field_acquire(int offset) const { return OrderAccess::load_acquire(float_field_addr(offset)); }
516 void oopDesc::release_float_field_put(int offset, jfloat contents) { OrderAccess::release_store(float_field_addr(offset), contents); }
517
518 jdouble oopDesc::double_field_acquire(int offset) const { return OrderAccess::load_acquire(double_field_addr(offset)); }
519 void oopDesc::release_double_field_put(int offset, jdouble contents) { OrderAccess::release_store(double_field_addr(offset), contents); }
520
521 address oopDesc::address_field_acquire(int offset) const { return (address) OrderAccess::load_ptr_acquire(address_field_addr(offset)); }
522 void oopDesc::release_address_field_put(int offset, address contents) { OrderAccess::release_store_ptr(address_field_addr(offset), contents); }
523
524 bool oopDesc::is_locked() const {
525 return mark()->is_locked();
526 }
527
528 bool oopDesc::is_unlocked() const {
529 return mark()->is_unlocked();
530 }
531
532 bool oopDesc::has_bias_pattern() const {
533 return mark()->has_bias_pattern();
534 }
535
536 // Used only for markSweep, scavenging
537 bool oopDesc::is_gc_marked() const {
538 return mark()->is_marked();
539 }
540
541 bool oopDesc::is_scavengable() const {
542 return Universe::heap()->is_scavengable(this);
|
49
50 template <class T> inline void update_barrier_set_pre(T* p, oop v) {
51 oopDesc::bs()->write_ref_field_pre(p, v);
52 }
53
54 template <class T> void oop_store(T* p, oop v) {
55 if (always_do_update_barrier) {
56 oop_store((volatile T*)p, v);
57 } else {
58 update_barrier_set_pre(p, v);
59 oopDesc::encode_store_heap_oop(p, v);
60 // always_do_update_barrier == false =>
61 // Either we are at a safepoint (in GC) or CMS is not used. In both
62 // cases it's unnecessary to mark the card as dirty with release sematics.
63 update_barrier_set((void*)p, v, false /* release */); // cast away type
64 }
65 }
66
67 template <class T> void oop_store(volatile T* p, oop v) {
68 update_barrier_set_pre((T*)p, v); // cast away volatile
69 // Used by release_obj_field_put, so use release_store.
70 oopDesc::release_encode_store_heap_oop(p, v);
71 // When using CMS we must mark the card corresponding to p as dirty
72 // with release sematics to prevent that CMS sees the dirty card but
73 // not the new value v at p due to reordering of the two
74 // stores. Note that CMS has a concurrent precleaning phase, where
75 // it reads the card table while the Java threads are running.
76 update_barrier_set((void*)p, v, true /* release */); // cast away type
77 }
78
79 // Should replace *addr = oop assignments where addr type depends on UseCompressedOops
80 // (without having to remember the function name this calls).
81 inline void oop_store_raw(HeapWord* addr, oop value) {
82 if (UseCompressedOops) {
83 oopDesc::encode_store_heap_oop((narrowOop*)addr, value);
84 } else {
85 oopDesc::encode_store_heap_oop((oop*)addr, value);
86 }
87 }
88
89 // Implementation of all inlined member functions defined in oop.hpp
90 // We need a separate file to avoid circular references
91
92 void oopDesc::release_set_mark(markOop m) {
93 OrderAccess::release_store(&_mark, m);
94 }
95
96 markOop oopDesc::cas_set_mark(markOop new_mark, markOop old_mark) {
97 return Atomic::cmpxchg(new_mark, &_mark, old_mark);
98 }
99
100 void oopDesc::init_mark() {
101 set_mark(markOopDesc::prototype_for_object(this));
102 }
103
104 Klass* oopDesc::klass() const {
105 if (UseCompressedClassPointers) {
106 return Klass::decode_klass_not_null(_metadata._compressed_klass);
107 } else {
108 return _metadata._klass;
109 }
110 }
111
112 Klass* oopDesc::klass_or_null() const volatile {
113 if (UseCompressedClassPointers) {
114 return Klass::decode_klass(_metadata._compressed_klass);
115 } else {
116 return _metadata._klass;
117 }
118 }
119
120 Klass* oopDesc::klass_or_null_acquire() const volatile {
121 if (UseCompressedClassPointers) {
122 // Workaround for non-const load_acquire parameter.
123 const volatile narrowKlass* addr = &_metadata._compressed_klass;
124 volatile narrowKlass* xaddr = const_cast<volatile narrowKlass*>(addr);
125 return Klass::decode_klass(OrderAccess::load_acquire(xaddr));
126 } else {
127 return OrderAccess::load_acquire(&_metadata._klass);
128 }
129 }
130
131 Klass** oopDesc::klass_addr() {
132 // Only used internally and with CMS and will not work with
133 // UseCompressedOops
134 assert(!UseCompressedClassPointers, "only supported with uncompressed klass pointers");
135 return (Klass**) &_metadata._klass;
136 }
137
138 narrowKlass* oopDesc::compressed_klass_addr() {
139 assert(UseCompressedClassPointers, "only called by compressed klass pointers");
140 return &_metadata._compressed_klass;
141 }
142
143 #define CHECK_SET_KLASS(k) \
144 do { \
145 assert(Universe::is_bootstrapping() || k != NULL, "NULL Klass"); \
146 assert(Universe::is_bootstrapping() || k->is_klass(), "not a Klass"); \
147 } while (0)
148
149 void oopDesc::set_klass(Klass* k) {
150 CHECK_SET_KLASS(k);
151 if (UseCompressedClassPointers) {
152 *compressed_klass_addr() = Klass::encode_klass_not_null(k);
153 } else {
154 *klass_addr() = k;
155 }
156 }
157
158 void oopDesc::release_set_klass(Klass* k) {
159 CHECK_SET_KLASS(k);
160 if (UseCompressedClassPointers) {
161 OrderAccess::release_store(compressed_klass_addr(),
162 Klass::encode_klass_not_null(k));
163 } else {
164 OrderAccess::release_store(klass_addr(), k);
165 }
166 }
167
168 #undef CHECK_SET_KLASS
169
170 int oopDesc::klass_gap() const {
171 return *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes());
172 }
173
174 void oopDesc::set_klass_gap(int v) {
175 if (UseCompressedClassPointers) {
176 *(int*)(((intptr_t)this) + klass_gap_offset_in_bytes()) = v;
177 }
178 }
179
180 void oopDesc::set_klass_to_list_ptr(oop k) {
181 // This is only to be used during GC, for from-space objects, so no
182 // barrier is needed.
183 if (UseCompressedClassPointers) {
184 _metadata._compressed_klass = (narrowKlass)encode_heap_oop(k); // may be null (parnew overflow handling)
344 return decode_heap_oop_not_null(*p);
345 }
346
347 // Load and decode an oop out of the heap accepting null
348 oop oopDesc::load_decode_heap_oop(narrowOop* p) {
349 return decode_heap_oop(*p);
350 }
351
352 // Encode and store a heap oop.
353 void oopDesc::encode_store_heap_oop_not_null(narrowOop* p, oop v) {
354 *p = encode_heap_oop_not_null(v);
355 }
356
357 // Encode and store a heap oop allowing for null.
358 void oopDesc::encode_store_heap_oop(narrowOop* p, oop v) {
359 *p = encode_heap_oop(v);
360 }
361
362 // Store heap oop as is for volatile fields.
363 void oopDesc::release_store_heap_oop(volatile oop* p, oop v) {
364 OrderAccess::release_store(p, v);
365 }
366 void oopDesc::release_store_heap_oop(volatile narrowOop* p, narrowOop v) {
367 OrderAccess::release_store(p, v);
368 }
369
370 void oopDesc::release_encode_store_heap_oop_not_null(volatile narrowOop* p, oop v) {
371 // heap oop is not pointer sized.
372 OrderAccess::release_store(p, encode_heap_oop_not_null(v));
373 }
374 void oopDesc::release_encode_store_heap_oop_not_null(volatile oop* p, oop v) {
375 OrderAccess::release_store(p, v);
376 }
377
378 void oopDesc::release_encode_store_heap_oop(volatile oop* p, oop v) {
379 OrderAccess::release_store(p, v);
380 }
381 void oopDesc::release_encode_store_heap_oop(volatile narrowOop* p, oop v) {
382 OrderAccess::release_store(p, encode_heap_oop(v));
383 }
384
385 // These functions are only used to exchange oop fields in instances,
386 // not headers.
387 oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
388 if (UseCompressedOops) {
389 // encode exchange value from oop to T
390 narrowOop val = encode_heap_oop(exchange_value);
391 narrowOop old = (narrowOop)Atomic::xchg(val, (narrowOop*)dest);
392 // decode old from T to oop
393 return decode_heap_oop(old);
394 } else {
395 return Atomic::xchg(exchange_value, (oop*)dest);
396 }
397 }
398
399 oop oopDesc::atomic_compare_exchange_oop(oop exchange_value,
400 volatile HeapWord *dest,
401 oop compare_value,
402 bool prebarrier) {
403 if (UseCompressedOops) {
404 if (prebarrier) {
405 update_barrier_set_pre((narrowOop*)dest, exchange_value);
406 }
407 // encode exchange and compare value from oop to T
408 narrowOop val = encode_heap_oop(exchange_value);
409 narrowOop cmp = encode_heap_oop(compare_value);
410
411 narrowOop old = Atomic::cmpxchg(val, (narrowOop*)dest, cmp);
412 // decode old from T to oop
413 return decode_heap_oop(old);
414 } else {
415 if (prebarrier) {
430 void oopDesc::obj_field_put(int offset, oop value) {
431 UseCompressedOops ? oop_store(obj_field_addr<narrowOop>(offset), value) :
432 oop_store(obj_field_addr<oop>(offset), value);
433 }
434
435 void oopDesc::obj_field_put_raw(int offset, oop value) {
436 UseCompressedOops ?
437 encode_store_heap_oop(obj_field_addr<narrowOop>(offset), value) :
438 encode_store_heap_oop(obj_field_addr<oop>(offset), value);
439 }
440 void oopDesc::obj_field_put_volatile(int offset, oop value) {
441 OrderAccess::release();
442 obj_field_put(offset, value);
443 OrderAccess::fence();
444 }
445
446 Metadata* oopDesc::metadata_field(int offset) const { return *metadata_field_addr(offset); }
447 void oopDesc::metadata_field_put(int offset, Metadata* value) { *metadata_field_addr(offset) = value; }
448
449 Metadata* oopDesc::metadata_field_acquire(int offset) const {
450 return OrderAccess::load_acquire(metadata_field_addr(offset));
451 }
452
453 void oopDesc::release_metadata_field_put(int offset, Metadata* value) {
454 OrderAccess::release_store(metadata_field_addr(offset), value);
455 }
456
457 jbyte oopDesc::byte_field(int offset) const { return (jbyte) *byte_field_addr(offset); }
458 void oopDesc::byte_field_put(int offset, jbyte contents) { *byte_field_addr(offset) = (jint) contents; }
459
460 jchar oopDesc::char_field(int offset) const { return (jchar) *char_field_addr(offset); }
461 void oopDesc::char_field_put(int offset, jchar contents) { *char_field_addr(offset) = (jint) contents; }
462
463 jboolean oopDesc::bool_field(int offset) const { return (jboolean) *bool_field_addr(offset); }
464 void oopDesc::bool_field_put(int offset, jboolean contents) { *bool_field_addr(offset) = (((jint) contents) & 1); }
465
466 jint oopDesc::int_field(int offset) const { return *int_field_addr(offset); }
467 void oopDesc::int_field_put(int offset, jint contents) { *int_field_addr(offset) = contents; }
468
469 jshort oopDesc::short_field(int offset) const { return (jshort) *short_field_addr(offset); }
470 void oopDesc::short_field_put(int offset, jshort contents) { *short_field_addr(offset) = (jint) contents;}
471
472 jlong oopDesc::long_field(int offset) const { return *long_field_addr(offset); }
473 void oopDesc::long_field_put(int offset, jlong contents) { *long_field_addr(offset) = contents; }
474
475 jfloat oopDesc::float_field(int offset) const { return *float_field_addr(offset); }
476 void oopDesc::float_field_put(int offset, jfloat contents) { *float_field_addr(offset) = contents; }
477
478 jdouble oopDesc::double_field(int offset) const { return *double_field_addr(offset); }
479 void oopDesc::double_field_put(int offset, jdouble contents) { *double_field_addr(offset) = contents; }
480
481 address oopDesc::address_field(int offset) const { return *address_field_addr(offset); }
482 void oopDesc::address_field_put(int offset, address contents) { *address_field_addr(offset) = contents; }
483
484 oop oopDesc::obj_field_acquire(int offset) const {
485 return UseCompressedOops ?
486 decode_heap_oop((narrowOop)
487 OrderAccess::load_acquire(obj_field_addr<narrowOop>(offset)))
488 : decode_heap_oop(
489 OrderAccess::load_acquire(obj_field_addr<oop>(offset)));
490 }
491 void oopDesc::release_obj_field_put(int offset, oop value) {
492 UseCompressedOops ?
493 oop_store((volatile narrowOop*)obj_field_addr<narrowOop>(offset), value) :
494 oop_store((volatile oop*) obj_field_addr<oop>(offset), value);
495 }
496
497 jbyte oopDesc::byte_field_acquire(int offset) const { return OrderAccess::load_acquire(byte_field_addr(offset)); }
498 void oopDesc::release_byte_field_put(int offset, jbyte contents) { OrderAccess::release_store(byte_field_addr(offset), contents); }
499
500 jchar oopDesc::char_field_acquire(int offset) const { return OrderAccess::load_acquire(char_field_addr(offset)); }
501 void oopDesc::release_char_field_put(int offset, jchar contents) { OrderAccess::release_store(char_field_addr(offset), contents); }
502
503 jboolean oopDesc::bool_field_acquire(int offset) const { return OrderAccess::load_acquire(bool_field_addr(offset)); }
504 void oopDesc::release_bool_field_put(int offset, jboolean contents) { OrderAccess::release_store(bool_field_addr(offset), jboolean(contents & 1)); }
505
506 jint oopDesc::int_field_acquire(int offset) const { return OrderAccess::load_acquire(int_field_addr(offset)); }
507 void oopDesc::release_int_field_put(int offset, jint contents) { OrderAccess::release_store(int_field_addr(offset), contents); }
508
509 jshort oopDesc::short_field_acquire(int offset) const { return (jshort)OrderAccess::load_acquire(short_field_addr(offset)); }
510 void oopDesc::release_short_field_put(int offset, jshort contents) { OrderAccess::release_store(short_field_addr(offset), contents); }
511
512 jlong oopDesc::long_field_acquire(int offset) const { return OrderAccess::load_acquire(long_field_addr(offset)); }
513 void oopDesc::release_long_field_put(int offset, jlong contents) { OrderAccess::release_store(long_field_addr(offset), contents); }
514
515 jfloat oopDesc::float_field_acquire(int offset) const { return OrderAccess::load_acquire(float_field_addr(offset)); }
516 void oopDesc::release_float_field_put(int offset, jfloat contents) { OrderAccess::release_store(float_field_addr(offset), contents); }
517
518 jdouble oopDesc::double_field_acquire(int offset) const { return OrderAccess::load_acquire(double_field_addr(offset)); }
519 void oopDesc::release_double_field_put(int offset, jdouble contents) { OrderAccess::release_store(double_field_addr(offset), contents); }
520
521 address oopDesc::address_field_acquire(int offset) const { return OrderAccess::load_acquire(address_field_addr(offset)); }
522 void oopDesc::release_address_field_put(int offset, address contents) { OrderAccess::release_store(address_field_addr(offset), contents); }
523
524 bool oopDesc::is_locked() const {
525 return mark()->is_locked();
526 }
527
528 bool oopDesc::is_unlocked() const {
529 return mark()->is_unlocked();
530 }
531
532 bool oopDesc::has_bias_pattern() const {
533 return mark()->has_bias_pattern();
534 }
535
536 // Used only for markSweep, scavenging
537 bool oopDesc::is_gc_marked() const {
538 return mark()->is_marked();
539 }
540
541 bool oopDesc::is_scavengable() const {
542 return Universe::heap()->is_scavengable(this);
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