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 #ifndef SHARE_GC_X_XBARRIERSET_INLINE_HPP
25 #define SHARE_GC_X_XBARRIERSET_INLINE_HPP
26
27 #include "gc/x/xBarrierSet.hpp"
28
29 #include "gc/shared/accessBarrierSupport.inline.hpp"
30 #include "gc/x/xBarrier.inline.hpp"
31 #include "utilities/debug.hpp"
32
33 template <DecoratorSet decorators, typename BarrierSetT>
34 template <DecoratorSet expected>
35 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::verify_decorators_present() {
36 if ((decorators & expected) == 0) {
37 fatal("Using unsupported access decorators");
38 }
39 }
40
41 template <DecoratorSet decorators, typename BarrierSetT>
42 template <DecoratorSet expected>
43 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::verify_decorators_absent() {
44 if ((decorators & expected) != 0) {
45 fatal("Using unsupported access decorators");
46 }
47 }
48
49 template <DecoratorSet decorators, typename BarrierSetT>
50 inline oop* XBarrierSet::AccessBarrier<decorators, BarrierSetT>::field_addr(oop base, ptrdiff_t offset) {
158 template <typename T>
159 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_xchg_in_heap(T* addr, oop new_value) {
160 verify_decorators_present<ON_STRONG_OOP_REF>();
161 verify_decorators_absent<AS_NO_KEEPALIVE>();
162
163 const oop o = Raw::oop_atomic_xchg_in_heap(addr, new_value);
164 return XBarrier::load_barrier_on_oop(o);
165 }
166
167 template <DecoratorSet decorators, typename BarrierSetT>
168 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_xchg_in_heap_at(oop base, ptrdiff_t offset, oop new_value) {
169 verify_decorators_present<ON_STRONG_OOP_REF>();
170 verify_decorators_absent<AS_NO_KEEPALIVE>();
171
172 const oop o = Raw::oop_atomic_xchg_in_heap_at(base, offset, new_value);
173 return XBarrier::load_barrier_on_oop(o);
174 }
175
176 template <DecoratorSet decorators, typename BarrierSetT>
177 template <typename T>
178 inline bool XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
179 arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw,
180 size_t length) {
181 T* src = arrayOopDesc::obj_offset_to_raw(src_obj, src_offset_in_bytes, src_raw);
182 T* dst = arrayOopDesc::obj_offset_to_raw(dst_obj, dst_offset_in_bytes, dst_raw);
183
184 if (!HasDecorator<decorators, ARRAYCOPY_CHECKCAST>::value) {
185 // No check cast, bulk barrier and bulk copy
186 XBarrier::load_barrier_on_oop_array(src, length);
187 return Raw::oop_arraycopy_in_heap(nullptr, 0, src, nullptr, 0, dst, length);
188 }
189
190 // Check cast and copy each elements
191 Klass* const dst_klass = objArrayOop(dst_obj)->element_klass();
192 for (const T* const end = src + length; src < end; src++, dst++) {
193 const oop elem = XBarrier::load_barrier_on_oop_field(src);
194 if (!oopDesc::is_instanceof_or_null(elem, dst_klass)) {
195 // Check cast failed
196 return false;
197 }
198
199 // Cast is safe, since we know it's never a narrowOop
200 *(oop*)dst = elem;
201 }
202
203 return true;
204 }
205
206 template <DecoratorSet decorators, typename BarrierSetT>
207 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::clone_in_heap(oop src, oop dst, size_t size) {
208 XBarrier::load_barrier_on_oop_fields(src);
209 Raw::clone_in_heap(src, dst, size);
210 }
211
212 //
213 // Not in heap
214 //
215 template <DecoratorSet decorators, typename BarrierSetT>
216 template <typename T>
217 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_load_not_in_heap(T* addr) {
218 verify_decorators_absent<ON_UNKNOWN_OOP_REF>();
219
220 const oop o = Raw::oop_load_not_in_heap(addr);
221 return load_barrier_on_oop_field_preloaded(addr, o);
222 }
223
224 template <DecoratorSet decorators, typename BarrierSetT>
225 template <typename T>
226 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_cmpxchg_not_in_heap(T* addr, oop compare_value, oop new_value) {
227 verify_decorators_present<ON_STRONG_OOP_REF>();
228 verify_decorators_absent<AS_NO_KEEPALIVE>();
229
230 return Raw::oop_atomic_cmpxchg_not_in_heap(addr, compare_value, new_value);
231 }
|
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 #ifndef SHARE_GC_X_XBARRIERSET_INLINE_HPP
25 #define SHARE_GC_X_XBARRIERSET_INLINE_HPP
26
27 #include "gc/x/xBarrierSet.hpp"
28
29 #include "gc/shared/accessBarrierSupport.inline.hpp"
30 #include "gc/x/xBarrier.inline.hpp"
31 #include "oops/inlineKlass.inline.hpp"
32 #include "utilities/debug.hpp"
33
34 template <DecoratorSet decorators, typename BarrierSetT>
35 template <DecoratorSet expected>
36 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::verify_decorators_present() {
37 if ((decorators & expected) == 0) {
38 fatal("Using unsupported access decorators");
39 }
40 }
41
42 template <DecoratorSet decorators, typename BarrierSetT>
43 template <DecoratorSet expected>
44 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::verify_decorators_absent() {
45 if ((decorators & expected) != 0) {
46 fatal("Using unsupported access decorators");
47 }
48 }
49
50 template <DecoratorSet decorators, typename BarrierSetT>
51 inline oop* XBarrierSet::AccessBarrier<decorators, BarrierSetT>::field_addr(oop base, ptrdiff_t offset) {
159 template <typename T>
160 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_xchg_in_heap(T* addr, oop new_value) {
161 verify_decorators_present<ON_STRONG_OOP_REF>();
162 verify_decorators_absent<AS_NO_KEEPALIVE>();
163
164 const oop o = Raw::oop_atomic_xchg_in_heap(addr, new_value);
165 return XBarrier::load_barrier_on_oop(o);
166 }
167
168 template <DecoratorSet decorators, typename BarrierSetT>
169 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_xchg_in_heap_at(oop base, ptrdiff_t offset, oop new_value) {
170 verify_decorators_present<ON_STRONG_OOP_REF>();
171 verify_decorators_absent<AS_NO_KEEPALIVE>();
172
173 const oop o = Raw::oop_atomic_xchg_in_heap_at(base, offset, new_value);
174 return XBarrier::load_barrier_on_oop(o);
175 }
176
177 template <DecoratorSet decorators, typename BarrierSetT>
178 template <typename T>
179 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_arraycopy_in_heap(arrayOop src_obj, size_t src_offset_in_bytes, T* src_raw,
180 arrayOop dst_obj, size_t dst_offset_in_bytes, T* dst_raw,
181 size_t length) {
182 T* src = arrayOopDesc::obj_offset_to_raw(src_obj, src_offset_in_bytes, src_raw);
183 T* dst = arrayOopDesc::obj_offset_to_raw(dst_obj, dst_offset_in_bytes, dst_raw);
184
185 if ((!HasDecorator<decorators, ARRAYCOPY_CHECKCAST>::value) &&
186 (!HasDecorator<decorators, ARRAYCOPY_NOTNULL>::value)) {
187 // No check cast, bulk barrier and bulk copy
188 XBarrier::load_barrier_on_oop_array(src, length);
189 Raw::oop_arraycopy_in_heap(nullptr, 0, src, nullptr, 0, dst, length);
190 return;
191 }
192
193 // Check cast and copy each elements
194 Klass* const dst_klass = objArrayOop(dst_obj)->element_klass();
195 for (const T* const end = src + length; src < end; src++, dst++) {
196 const oop elem = XBarrier::load_barrier_on_oop_field(src);
197 if (HasDecorator<decorators, ARRAYCOPY_NOTNULL>::value && elem == nullptr) {
198 throw_array_null_pointer_store_exception(src_obj, dst_obj, JavaThread::current());
199 return;
200 }
201 if (HasDecorator<decorators, ARRAYCOPY_CHECKCAST>::value &&
202 (!oopDesc::is_instanceof_or_null(elem, dst_klass))) {
203 // Check cast failed
204 throw_array_store_exception(src_obj, dst_obj, JavaThread::current());
205 return;
206 }
207
208 // Cast is safe, since we know it's never a narrowOop
209 *(oop*)dst = elem;
210 }
211 }
212
213 template <DecoratorSet decorators, typename BarrierSetT>
214 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::clone_in_heap(oop src, oop dst, size_t size) {
215 XBarrier::load_barrier_on_oop_fields(src);
216 Raw::clone_in_heap(src, dst, size);
217 }
218
219 template <DecoratorSet decorators, typename BarrierSetT>
220 inline void XBarrierSet::AccessBarrier<decorators, BarrierSetT>::value_copy_in_heap(void* src, void* dst, InlineKlass* md, LayoutKind lk) {
221 if (md->contains_oops()) {
222 // src/dst aren't oops, need offset to adjust oop map offset
223 const address src_oop_addr_offset = ((address) src) - md->first_field_offset();
224
225 OopMapBlock* map = md->start_of_nonstatic_oop_maps();
226 OopMapBlock* const end = map + md->nonstatic_oop_map_count();
227 while (map != end) {
228 address soop_address = src_oop_addr_offset + map->offset();
229 XBarrier::load_barrier_on_oop_array((oop*) soop_address, map->count());
230 map++;
231 }
232 }
233 Raw::value_copy_in_heap(src, dst, md, lk);
234 }
235
236 //
237 // Not in heap
238 //
239 template <DecoratorSet decorators, typename BarrierSetT>
240 template <typename T>
241 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_load_not_in_heap(T* addr) {
242 verify_decorators_absent<ON_UNKNOWN_OOP_REF>();
243
244 const oop o = Raw::oop_load_not_in_heap(addr);
245 return load_barrier_on_oop_field_preloaded(addr, o);
246 }
247
248 template <DecoratorSet decorators, typename BarrierSetT>
249 template <typename T>
250 inline oop XBarrierSet::AccessBarrier<decorators, BarrierSetT>::oop_atomic_cmpxchg_not_in_heap(T* addr, oop compare_value, oop new_value) {
251 verify_decorators_present<ON_STRONG_OOP_REF>();
252 verify_decorators_absent<AS_NO_KEEPALIVE>();
253
254 return Raw::oop_atomic_cmpxchg_not_in_heap(addr, compare_value, new_value);
255 }
|