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 "classfile/altHashing.hpp"
27 #include "classfile/javaClasses.inline.hpp"
28 #include "memory/resourceArea.hpp"
29 #include "oops/oop.inline.hpp"
30 #include "oops/verifyOopClosure.hpp"
31 #include "runtime/handles.inline.hpp"
32 #include "runtime/thread.inline.hpp"
33 #include "utilities/copy.hpp"
34
35 bool always_do_update_barrier = false;
36
37 BarrierSet* oopDesc::_bs = NULL;
38
39 void oopDesc::print_on(outputStream* st) const {
40 if (this == NULL) {
41 st->print_cr("NULL");
42 } else {
43 klass()->oop_print_on(oop(this), st);
44 }
45 }
46
47 void oopDesc::print_address_on(outputStream* st) const {
48 st->print("{" INTPTR_FORMAT "}", p2i(this));
49
50 }
120
121 VerifyOopClosure VerifyOopClosure::verify_oop;
122
123 template <class T> void VerifyOopClosure::do_oop_work(T* p) {
124 oop obj = oopDesc::load_decode_heap_oop(p);
125 guarantee(obj->is_oop_or_null(), "invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj));
126 }
127
128 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); }
129 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
130
131 // type test operations that doesn't require inclusion of oop.inline.hpp.
132 bool oopDesc::is_instance_noinline() const { return is_instance(); }
133 bool oopDesc::is_array_noinline() const { return is_array(); }
134 bool oopDesc::is_objArray_noinline() const { return is_objArray(); }
135 bool oopDesc::is_typeArray_noinline() const { return is_typeArray(); }
136
137 bool oopDesc::has_klass_gap() {
138 // Only has a klass gap when compressed class pointers are used.
139 return UseCompressedClassPointers;
140 }
|
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 "classfile/altHashing.hpp"
27 #include "classfile/javaClasses.inline.hpp"
28 #include "memory/resourceArea.hpp"
29 #include "oops/oop.inline.hpp"
30 #include "oops/verifyOopClosure.hpp"
31 #include "runtime/access.inline.hpp"
32 #include "runtime/handles.inline.hpp"
33 #include "runtime/thread.inline.hpp"
34 #include "utilities/copy.hpp"
35
36 bool always_do_update_barrier = false;
37
38 BarrierSet* oopDesc::_bs = NULL;
39
40 void oopDesc::print_on(outputStream* st) const {
41 if (this == NULL) {
42 st->print_cr("NULL");
43 } else {
44 klass()->oop_print_on(oop(this), st);
45 }
46 }
47
48 void oopDesc::print_address_on(outputStream* st) const {
49 st->print("{" INTPTR_FORMAT "}", p2i(this));
50
51 }
121
122 VerifyOopClosure VerifyOopClosure::verify_oop;
123
124 template <class T> void VerifyOopClosure::do_oop_work(T* p) {
125 oop obj = oopDesc::load_decode_heap_oop(p);
126 guarantee(obj->is_oop_or_null(), "invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj));
127 }
128
129 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); }
130 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
131
132 // type test operations that doesn't require inclusion of oop.inline.hpp.
133 bool oopDesc::is_instance_noinline() const { return is_instance(); }
134 bool oopDesc::is_array_noinline() const { return is_array(); }
135 bool oopDesc::is_objArray_noinline() const { return is_objArray(); }
136 bool oopDesc::is_typeArray_noinline() const { return is_typeArray(); }
137
138 bool oopDesc::has_klass_gap() {
139 // Only has a klass gap when compressed class pointers are used.
140 return UseCompressedClassPointers;
141 }
142
143 oop oopDesc::obj_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::oop_load_at(oop_base(), offset); }
144
145 void oopDesc::obj_field_put_raw(int offset, oop value) { BasicAccess<>::oop_store_at(oop_base(), offset, value); }
146 void oopDesc::release_obj_field_put(int offset, oop value) { HeapAccess<MO_RELEASE>::oop_store_at(oop_base(), offset, value); }
147 void oopDesc::obj_field_put_volatile(int offset, oop value) { HeapAccess<MO_SEQ_CST>::oop_store_at(oop_base(), offset, value); }
148
149 address oopDesc::address_field(int offset) const { return HeapAccess<>::load_at(oop_base(), offset); }
150 address oopDesc::address_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
151
152 void oopDesc::address_field_put(int offset, address value) { HeapAccess<>::store_at(oop_base(), offset, value); }
153 void oopDesc::release_address_field_put(int offset, address value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
154
155 Metadata* oopDesc::metadata_field(int offset) const { return HeapAccess<>::load_at(oop_base(), offset); }
156 void oopDesc::metadata_field_put(int offset, Metadata* value) { HeapAccess<>::store_at(oop_base(), offset, value); }
157
158 jbyte oopDesc::byte_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
159 void oopDesc::release_byte_field_put(int offset, jbyte value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
160
161 jchar oopDesc::char_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
162 void oopDesc::release_char_field_put(int offset, jchar value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
163
164 jboolean oopDesc::bool_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
165 void oopDesc::release_bool_field_put(int offset, jboolean value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, jboolean(value & 1)); }
166
167 jint oopDesc::int_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
168 void oopDesc::release_int_field_put(int offset, jint value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
169
170 jshort oopDesc::short_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
171 void oopDesc::release_short_field_put(int offset, jshort value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
172
173 jlong oopDesc::long_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
174 void oopDesc::release_long_field_put(int offset, jlong value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
175
176 jfloat oopDesc::float_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
177 void oopDesc::release_float_field_put(int offset, jfloat value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
178
179 jdouble oopDesc::double_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::load_at(oop_base(), offset); }
180 void oopDesc::release_double_field_put(int offset, jdouble value) { HeapAccess<MO_RELEASE>::store_at(oop_base(), offset, value); }
181
182 // These functions are only used to exchange oop fields in instances,
183 // not headers.
184 oop oopDesc::atomic_exchange_oop(oop exchange_value, volatile HeapWord *dest) {
185 return HeapAccess<MO_SEQ_CST>::oop_swap(exchange_value, dest);
186 }
187
188 oop oopDesc::atomic_compare_exchange_oop(oop exchange_value,
189 volatile HeapWord *dest,
190 oop compare_value) {
191 return HeapAccess<MO_SEQ_CST>::oop_cas(exchange_value, dest, compare_value);
192 }
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