129 // Methods in class VM_CMS_Initial_Mark
130 //////////////////////////////////////////////////////////
131 void VM_CMS_Initial_Mark::doit() {
132 if (lost_race()) {
133 // Nothing to do.
134 return;
135 }
136 #ifndef USDT2
137 HS_DTRACE_PROBE(hs_private, cms__initmark__begin);
138 #else /* USDT2 */
139 HS_PRIVATE_CMS_INITMARK_BEGIN(
140 );
141 #endif /* USDT2 */
142
143 GenCollectedHeap* gch = GenCollectedHeap::heap();
144 GCCauseSetter gccs(gch, GCCause::_cms_initial_mark);
145
146 VM_CMS_Operation::verify_before_gc();
147
148 IsGCActiveMark x; // stop-world GC active
149 _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsInitial);
150
151 VM_CMS_Operation::verify_after_gc();
152 #ifndef USDT2
153 HS_DTRACE_PROBE(hs_private, cms__initmark__end);
154 #else /* USDT2 */
155 HS_PRIVATE_CMS_INITMARK_END(
156 );
157 #endif /* USDT2 */
158 }
159
160 //////////////////////////////////////////////////////////
161 // Methods in class VM_CMS_Final_Remark_Operation
162 //////////////////////////////////////////////////////////
163 void VM_CMS_Final_Remark::doit() {
164 if (lost_race()) {
165 // Nothing to do.
166 return;
167 }
168 #ifndef USDT2
169 HS_DTRACE_PROBE(hs_private, cms__remark__begin);
170 #else /* USDT2 */
171 HS_PRIVATE_CMS_REMARK_BEGIN(
172 );
173 #endif /* USDT2 */
174
175 GenCollectedHeap* gch = GenCollectedHeap::heap();
176 GCCauseSetter gccs(gch, GCCause::_cms_final_remark);
177
178 VM_CMS_Operation::verify_before_gc();
179
180 IsGCActiveMark x; // stop-world GC active
181 _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsFinal);
182
183 VM_CMS_Operation::verify_after_gc();
184 #ifndef USDT2
185 HS_DTRACE_PROBE(hs_private, cms__remark__end);
186 #else /* USDT2 */
187 HS_PRIVATE_CMS_REMARK_END(
188 );
189 #endif /* USDT2 */
190 }
191
192 // VM operation to invoke a concurrent collection of a
193 // GenCollectedHeap heap.
194 void VM_GenCollectFullConcurrent::doit() {
195 assert(Thread::current()->is_VM_thread(), "Should be VM thread");
196 assert(GCLockerInvokesConcurrent || ExplicitGCInvokesConcurrent, "Unexpected");
197
198 GenCollectedHeap* gch = GenCollectedHeap::heap();
199 if (_gc_count_before == gch->total_collections()) {
200 // The "full" of do_full_collection call below "forces"
201 // a collection; the second arg, 0, below ensures that
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129 // Methods in class VM_CMS_Initial_Mark
130 //////////////////////////////////////////////////////////
131 void VM_CMS_Initial_Mark::doit() {
132 if (lost_race()) {
133 // Nothing to do.
134 return;
135 }
136 #ifndef USDT2
137 HS_DTRACE_PROBE(hs_private, cms__initmark__begin);
138 #else /* USDT2 */
139 HS_PRIVATE_CMS_INITMARK_BEGIN(
140 );
141 #endif /* USDT2 */
142
143 GenCollectedHeap* gch = GenCollectedHeap::heap();
144 GCCauseSetter gccs(gch, GCCause::_cms_initial_mark);
145
146 VM_CMS_Operation::verify_before_gc();
147
148 IsGCActiveMark x; // stop-world GC active
149 _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsInitial, gch->gc_cause());
150
151 VM_CMS_Operation::verify_after_gc();
152 #ifndef USDT2
153 HS_DTRACE_PROBE(hs_private, cms__initmark__end);
154 #else /* USDT2 */
155 HS_PRIVATE_CMS_INITMARK_END(
156 );
157 #endif /* USDT2 */
158 }
159
160 //////////////////////////////////////////////////////////
161 // Methods in class VM_CMS_Final_Remark_Operation
162 //////////////////////////////////////////////////////////
163 void VM_CMS_Final_Remark::doit() {
164 if (lost_race()) {
165 // Nothing to do.
166 return;
167 }
168 #ifndef USDT2
169 HS_DTRACE_PROBE(hs_private, cms__remark__begin);
170 #else /* USDT2 */
171 HS_PRIVATE_CMS_REMARK_BEGIN(
172 );
173 #endif /* USDT2 */
174
175 GenCollectedHeap* gch = GenCollectedHeap::heap();
176 GCCauseSetter gccs(gch, GCCause::_cms_final_remark);
177
178 VM_CMS_Operation::verify_before_gc();
179
180 IsGCActiveMark x; // stop-world GC active
181 _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsFinal, gch->gc_cause());
182
183 VM_CMS_Operation::verify_after_gc();
184 #ifndef USDT2
185 HS_DTRACE_PROBE(hs_private, cms__remark__end);
186 #else /* USDT2 */
187 HS_PRIVATE_CMS_REMARK_END(
188 );
189 #endif /* USDT2 */
190 }
191
192 // VM operation to invoke a concurrent collection of a
193 // GenCollectedHeap heap.
194 void VM_GenCollectFullConcurrent::doit() {
195 assert(Thread::current()->is_VM_thread(), "Should be VM thread");
196 assert(GCLockerInvokesConcurrent || ExplicitGCInvokesConcurrent, "Unexpected");
197
198 GenCollectedHeap* gch = GenCollectedHeap::heap();
199 if (_gc_count_before == gch->total_collections()) {
200 // The "full" of do_full_collection call below "forces"
201 // a collection; the second arg, 0, below ensures that
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