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 "gc/shared/collectedHeap.inline.hpp"
29 #include "gc/shared/gc_globals.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.hpp"
32 #include "oops/access.inline.hpp"
33 #include "oops/compressedOops.inline.hpp"
34 #include "oops/oop.inline.hpp"
35 #include "oops/verifyOopClosure.hpp"
36 #include "runtime/handles.inline.hpp"
37 #include "runtime/thread.inline.hpp"
38 #include "utilities/copy.hpp"
39 #include "utilities/macros.hpp"
40
41 void oopDesc::print_on(outputStream* st) const {
42 klass()->oop_print_on(const_cast<oopDesc*>(this), st);
43 }
44
45 void oopDesc::print_address_on(outputStream* st) const {
46 st->print("{" INTPTR_FORMAT "}", p2i(this));
47
48 }
49
50 void oopDesc::print() { print_on(tty); }
51
52 void oopDesc::print_address() { print_address_on(tty); }
53
54 char* oopDesc::print_string() {
55 stringStream st;
56 print_on(&st);
123 return obj == NULL ? true : is_oop(obj, ignore_mark_word);
124 }
125
126 VerifyOopClosure VerifyOopClosure::verify_oop;
127
128 template <class T> void VerifyOopClosure::do_oop_work(T* p) {
129 oop obj = RawAccess<>::oop_load(p);
130 guarantee(oopDesc::is_oop_or_null(obj), "invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj));
131 }
132
133 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); }
134 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
135
136 // type test operations that doesn't require inclusion of oop.inline.hpp.
137 bool oopDesc::is_instance_noinline() const { return is_instance(); }
138 bool oopDesc::is_instanceRef_noinline() const { return is_instanceRef(); }
139 bool oopDesc::is_array_noinline() const { return is_array(); }
140 bool oopDesc::is_objArray_noinline() const { return is_objArray(); }
141 bool oopDesc::is_typeArray_noinline() const { return is_typeArray(); }
142
143 bool oopDesc::has_klass_gap() {
144 // Only has a klass gap when compressed class pointers are used.
145 return UseCompressedClassPointers;
146 }
147
148 #if INCLUDE_CDS_JAVA_HEAP
149 void oopDesc::set_narrow_klass(narrowKlass nk) {
150 assert(DumpSharedSpaces, "Used by CDS only. Do not abuse!");
151 assert(UseCompressedClassPointers, "must be");
152 _metadata._compressed_klass = nk;
153 }
154 #endif
155
156 void* oopDesc::load_klass_raw(oop obj) {
157 if (UseCompressedClassPointers) {
158 narrowKlass narrow_klass = obj->_metadata._compressed_klass;
159 if (narrow_klass == 0) return NULL;
160 return (void*)CompressedKlassPointers::decode_raw(narrow_klass);
161 } else {
162 return obj->_metadata._klass;
163 }
164 }
165
166 void* oopDesc::load_oop_raw(oop obj, int offset) {
167 uintptr_t addr = (uintptr_t)(void*)obj + (uint)offset;
168 if (UseCompressedOops) {
169 narrowOop narrow_oop = *(narrowOop*)addr;
170 if (CompressedOops::is_null(narrow_oop)) return NULL;
171 return (void*)CompressedOops::decode_raw(narrow_oop);
172 } else {
173 return *(void**)addr;
174 }
175 }
176
177 oop oopDesc::obj_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::oop_load_at(as_oop(), offset); }
178
179 void oopDesc::obj_field_put_raw(int offset, oop value) { RawAccess<>::oop_store_at(as_oop(), offset, value); }
180 void oopDesc::release_obj_field_put(int offset, oop value) { HeapAccess<MO_RELEASE>::oop_store_at(as_oop(), offset, value); }
181 void oopDesc::obj_field_put_volatile(int offset, oop value) { HeapAccess<MO_SEQ_CST>::oop_store_at(as_oop(), offset, value); }
182
183 address oopDesc::address_field(int offset) const { return *field_addr<address>(offset); }
184 address oopDesc::address_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<address>(offset)); }
185
186 void oopDesc::address_field_put(int offset, address value) { *field_addr<address>(offset) = value; }
187 void oopDesc::release_address_field_put(int offset, address value) { Atomic::release_store(field_addr<address>(offset), value); }
188
189 Metadata* oopDesc::metadata_field(int offset) const { return *field_addr<Metadata*>(offset); }
190 void oopDesc::metadata_field_put(int offset, Metadata* value) { *field_addr<Metadata*>(offset) = value; }
191
192 Metadata* oopDesc::metadata_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<Metadata*>(offset)); }
193 void oopDesc::release_metadata_field_put(int offset, Metadata* value) { Atomic::release_store(field_addr<Metadata*>(offset), value); }
194
195 jbyte oopDesc::byte_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<jbyte>(offset)); }
196 void oopDesc::release_byte_field_put(int offset, jbyte value) { Atomic::release_store(field_addr<jbyte>(offset), value); }
|
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 "gc/shared/collectedHeap.inline.hpp"
29 #include "gc/shared/gc_globals.hpp"
30 #include "memory/resourceArea.hpp"
31 #include "memory/universe.hpp"
32 #include "oops/access.inline.hpp"
33 #include "oops/compressedKlass.inline.hpp"
34 #include "oops/compressedOops.inline.hpp"
35 #include "oops/oop.inline.hpp"
36 #include "oops/verifyOopClosure.hpp"
37 #include "runtime/handles.inline.hpp"
38 #include "runtime/interfaceSupport.inline.hpp"
39 #include "runtime/thread.inline.hpp"
40 #include "utilities/copy.hpp"
41 #include "utilities/macros.hpp"
42
43 void oopDesc::print_on(outputStream* st) const {
44 klass()->oop_print_on(const_cast<oopDesc*>(this), st);
45 }
46
47 void oopDesc::print_address_on(outputStream* st) const {
48 st->print("{" INTPTR_FORMAT "}", p2i(this));
49
50 }
51
52 void oopDesc::print() { print_on(tty); }
53
54 void oopDesc::print_address() { print_address_on(tty); }
55
56 char* oopDesc::print_string() {
57 stringStream st;
58 print_on(&st);
125 return obj == NULL ? true : is_oop(obj, ignore_mark_word);
126 }
127
128 VerifyOopClosure VerifyOopClosure::verify_oop;
129
130 template <class T> void VerifyOopClosure::do_oop_work(T* p) {
131 oop obj = RawAccess<>::oop_load(p);
132 guarantee(oopDesc::is_oop_or_null(obj), "invalid oop: " INTPTR_FORMAT, p2i((oopDesc*) obj));
133 }
134
135 void VerifyOopClosure::do_oop(oop* p) { VerifyOopClosure::do_oop_work(p); }
136 void VerifyOopClosure::do_oop(narrowOop* p) { VerifyOopClosure::do_oop_work(p); }
137
138 // type test operations that doesn't require inclusion of oop.inline.hpp.
139 bool oopDesc::is_instance_noinline() const { return is_instance(); }
140 bool oopDesc::is_instanceRef_noinline() const { return is_instanceRef(); }
141 bool oopDesc::is_array_noinline() const { return is_array(); }
142 bool oopDesc::is_objArray_noinline() const { return is_objArray(); }
143 bool oopDesc::is_typeArray_noinline() const { return is_typeArray(); }
144
145 void* oopDesc::load_klass_raw(oop obj) {
146 // TODO: Remove method altogether and replace with calls to obj->klass() ?
147 // OTOH, we may eventually get rid of locking in header, and then no
148 // longer have to deal with that anymore.
149 #ifdef _LP64
150 return obj->klass();
151 #else
152 return obj->_klass;
153 #endif
154 }
155
156 void* oopDesc::load_oop_raw(oop obj, int offset) {
157 uintptr_t addr = (uintptr_t)(void*)obj + (uint)offset;
158 if (UseCompressedOops) {
159 narrowOop narrow_oop = *(narrowOop*)addr;
160 if (CompressedOops::is_null(narrow_oop)) return NULL;
161 return (void*)CompressedOops::decode_raw(narrow_oop);
162 } else {
163 return *(void**)addr;
164 }
165 }
166
167 #ifdef _LP64
168 JRT_LEAF(narrowKlass, oopDesc::load_nklass_runtime(oopDesc* o))
169 assert(o != NULL, "null-check");
170 oop obj = oop(o);
171 assert(oopDesc::is_oop(obj), "need a valid oop here: " PTR_FORMAT, p2i(o));
172 markWord header = obj->mark();
173 if (!header.is_neutral()) {
174 header = ObjectSynchronizer::stable_mark(obj);
175 }
176 assert(header.is_neutral(), "expect neutral header here");
177 narrowKlass nklass = header.narrow_klass();
178 return nklass;
179 JRT_END
180 #endif
181
182 oop oopDesc::obj_field_acquire(int offset) const { return HeapAccess<MO_ACQUIRE>::oop_load_at(as_oop(), offset); }
183
184 void oopDesc::obj_field_put_raw(int offset, oop value) { RawAccess<>::oop_store_at(as_oop(), offset, value); }
185 void oopDesc::release_obj_field_put(int offset, oop value) { HeapAccess<MO_RELEASE>::oop_store_at(as_oop(), offset, value); }
186 void oopDesc::obj_field_put_volatile(int offset, oop value) { HeapAccess<MO_SEQ_CST>::oop_store_at(as_oop(), offset, value); }
187
188 address oopDesc::address_field(int offset) const { return *field_addr<address>(offset); }
189 address oopDesc::address_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<address>(offset)); }
190
191 void oopDesc::address_field_put(int offset, address value) { *field_addr<address>(offset) = value; }
192 void oopDesc::release_address_field_put(int offset, address value) { Atomic::release_store(field_addr<address>(offset), value); }
193
194 Metadata* oopDesc::metadata_field(int offset) const { return *field_addr<Metadata*>(offset); }
195 void oopDesc::metadata_field_put(int offset, Metadata* value) { *field_addr<Metadata*>(offset) = value; }
196
197 Metadata* oopDesc::metadata_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<Metadata*>(offset)); }
198 void oopDesc::release_metadata_field_put(int offset, Metadata* value) { Atomic::release_store(field_addr<Metadata*>(offset), value); }
199
200 jbyte oopDesc::byte_field_acquire(int offset) const { return Atomic::load_acquire(field_addr<jbyte>(offset)); }
201 void oopDesc::release_byte_field_put(int offset, jbyte value) { Atomic::release_store(field_addr<jbyte>(offset), value); }
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