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 "compiler/compileBroker.hpp"
27 #include "gc_implementation/shared/markSweep.inline.hpp"
28 #include "gc_interface/collectedHeap.inline.hpp"
29 #include "oops/methodData.hpp"
30 #include "oops/objArrayKlass.inline.hpp"
31 #include "oops/oop.inline.hpp"
32
33 uint MarkSweep::_total_invocations = 0;
34
35 Stack<oop, mtGC> MarkSweep::_marking_stack;
36 Stack<ObjArrayTask, mtGC> MarkSweep::_objarray_stack;
37
38 Stack<oop, mtGC> MarkSweep::_preserved_oop_stack;
39 Stack<markOop, mtGC> MarkSweep::_preserved_mark_stack;
40 size_t MarkSweep::_preserved_count = 0;
41 size_t MarkSweep::_preserved_count_max = 0;
42 PreservedMark* MarkSweep::_preserved_marks = NULL;
43 ReferenceProcessor* MarkSweep::_ref_processor = NULL;
44
45 MarkSweep::FollowRootClosure MarkSweep::follow_root_closure;
46 CodeBlobToOopClosure MarkSweep::follow_code_root_closure(&MarkSweep::follow_root_closure, /*do_marking=*/ true);
47
48 void MarkSweep::FollowRootClosure::do_oop(oop* p) { follow_root(p); }
49 void MarkSweep::FollowRootClosure::do_oop(narrowOop* p) { follow_root(p); }
50
51 MarkSweep::MarkAndPushClosure MarkSweep::mark_and_push_closure;
52 MarkSweep::FollowKlassClosure MarkSweep::follow_klass_closure;
53 MarkSweep::AdjustKlassClosure MarkSweep::adjust_klass_closure;
54
55 void MarkSweep::MarkAndPushClosure::do_oop(oop* p) { mark_and_push(p); }
56 void MarkSweep::MarkAndPushClosure::do_oop(narrowOop* p) { mark_and_push(p); }
57
58 void MarkSweep::FollowKlassClosure::do_klass(Klass* klass) {
59 klass->oops_do(&MarkSweep::mark_and_push_closure);
60 }
61 void MarkSweep::AdjustKlassClosure::do_klass(Klass* klass) {
62 klass->oops_do(&MarkSweep::adjust_pointer_closure);
63 }
156 _preserved_marks[i].restore();
157 }
158
159 // deal with the overflow
160 while (!_preserved_oop_stack.is_empty()) {
161 oop obj = _preserved_oop_stack.pop();
162 markOop mark = _preserved_mark_stack.pop();
163 obj->set_mark(mark);
164 }
165 }
166
167 MarkSweep::IsAliveClosure MarkSweep::is_alive;
168
169 bool MarkSweep::IsAliveClosure::do_object_b(oop p) { return p->is_gc_marked(); }
170
171 MarkSweep::KeepAliveClosure MarkSweep::keep_alive;
172
173 void MarkSweep::KeepAliveClosure::do_oop(oop* p) { MarkSweep::KeepAliveClosure::do_oop_work(p); }
174 void MarkSweep::KeepAliveClosure::do_oop(narrowOop* p) { MarkSweep::KeepAliveClosure::do_oop_work(p); }
175
176 void marksweep_init() { /* empty */ }
177
178 #ifndef PRODUCT
179
180 void MarkSweep::trace(const char* msg) {
181 if (TraceMarkSweep)
182 gclog_or_tty->print("%s", msg);
183 }
184
185 #endif
|
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 "compiler/compileBroker.hpp"
27 #include "gc_implementation/shared/gcTimer.hpp"
28 #include "gc_implementation/shared/gcTrace.hpp"
29 #include "gc_implementation/shared/markSweep.inline.hpp"
30 #include "gc_interface/collectedHeap.inline.hpp"
31 #include "oops/methodData.hpp"
32 #include "oops/objArrayKlass.inline.hpp"
33 #include "oops/oop.inline.hpp"
34
35 uint MarkSweep::_total_invocations = 0;
36
37 Stack<oop, mtGC> MarkSweep::_marking_stack;
38 Stack<ObjArrayTask, mtGC> MarkSweep::_objarray_stack;
39
40 Stack<oop, mtGC> MarkSweep::_preserved_oop_stack;
41 Stack<markOop, mtGC> MarkSweep::_preserved_mark_stack;
42 size_t MarkSweep::_preserved_count = 0;
43 size_t MarkSweep::_preserved_count_max = 0;
44 PreservedMark* MarkSweep::_preserved_marks = NULL;
45 ReferenceProcessor* MarkSweep::_ref_processor = NULL;
46 STWGCTimer* MarkSweep::_gc_timer = NULL;
47 SerialOldTracer* MarkSweep::_gc_tracer = NULL;
48
49 MarkSweep::FollowRootClosure MarkSweep::follow_root_closure;
50 CodeBlobToOopClosure MarkSweep::follow_code_root_closure(&MarkSweep::follow_root_closure, /*do_marking=*/ true);
51
52 void MarkSweep::FollowRootClosure::do_oop(oop* p) { follow_root(p); }
53 void MarkSweep::FollowRootClosure::do_oop(narrowOop* p) { follow_root(p); }
54
55 MarkSweep::MarkAndPushClosure MarkSweep::mark_and_push_closure;
56 MarkSweep::FollowKlassClosure MarkSweep::follow_klass_closure;
57 MarkSweep::AdjustKlassClosure MarkSweep::adjust_klass_closure;
58
59 void MarkSweep::MarkAndPushClosure::do_oop(oop* p) { mark_and_push(p); }
60 void MarkSweep::MarkAndPushClosure::do_oop(narrowOop* p) { mark_and_push(p); }
61
62 void MarkSweep::FollowKlassClosure::do_klass(Klass* klass) {
63 klass->oops_do(&MarkSweep::mark_and_push_closure);
64 }
65 void MarkSweep::AdjustKlassClosure::do_klass(Klass* klass) {
66 klass->oops_do(&MarkSweep::adjust_pointer_closure);
67 }
160 _preserved_marks[i].restore();
161 }
162
163 // deal with the overflow
164 while (!_preserved_oop_stack.is_empty()) {
165 oop obj = _preserved_oop_stack.pop();
166 markOop mark = _preserved_mark_stack.pop();
167 obj->set_mark(mark);
168 }
169 }
170
171 MarkSweep::IsAliveClosure MarkSweep::is_alive;
172
173 bool MarkSweep::IsAliveClosure::do_object_b(oop p) { return p->is_gc_marked(); }
174
175 MarkSweep::KeepAliveClosure MarkSweep::keep_alive;
176
177 void MarkSweep::KeepAliveClosure::do_oop(oop* p) { MarkSweep::KeepAliveClosure::do_oop_work(p); }
178 void MarkSweep::KeepAliveClosure::do_oop(narrowOop* p) { MarkSweep::KeepAliveClosure::do_oop_work(p); }
179
180 void marksweep_init() {
181 MarkSweep::_gc_timer = new (ResourceObj::C_HEAP, mtGC) STWGCTimer();
182 MarkSweep::_gc_tracer = new (ResourceObj::C_HEAP, mtGC) SerialOldTracer();
183 }
184
185 #ifndef PRODUCT
186
187 void MarkSweep::trace(const char* msg) {
188 if (TraceMarkSweep)
189 gclog_or_tty->print("%s", msg);
190 }
191
192 #endif
|