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 "aot/aotLoader.hpp"
27 #include "classfile/classLoaderDataGraph.hpp"
28 #include "classfile/stringTable.hpp"
29 #include "gc/shared/strongRootsScope.hpp"
30 #include "jfr/leakprofiler/utilities/unifiedOop.hpp"
31 #include "jfr/leakprofiler/checkpoint/rootResolver.hpp"
32 #include "memory/iterator.hpp"
33 #include "oops/klass.hpp"
34 #include "oops/markOop.hpp"
35 #include "oops/oop.hpp"
36 #include "prims/jvmtiThreadState.hpp"
37 #include "prims/privilegedStack.hpp"
38 #include "runtime/frame.inline.hpp"
39 #include "runtime/mutexLocker.hpp"
40 #include "runtime/threadSMR.inline.hpp"
41 #include "runtime/vframe_hp.hpp"
42 #include "services/management.hpp"
43 #include "utilities/growableArray.hpp"
44
45 class ReferenceLocateClosure : public OopClosure {
46 protected:
47 RootCallback& _callback;
48 RootCallbackInfo _info;
49 bool _complete;
50
51 void do_oop_shared(const void* ref);
52
53 public:
54 ReferenceLocateClosure(RootCallback& callback,
55 OldObjectRoot::System system,
56 OldObjectRoot::Type type,
57 const void* context) : _callback(callback),
306 const address adr = (address)_callback.at(i);
307 if (jt->is_in_usable_stack(adr)) {
308 info._high = adr;
309 _complete = _callback.process(info);
310 if (_complete) {
311 return true;
312 }
313 }
314 }
315 assert(!complete(), "invariant");
316 return false;
317 }
318
319 bool ReferenceToThreadRootClosure::do_thread_stack_detailed(JavaThread* jt) {
320 assert(jt != NULL, "invariant");
321 assert(!complete(), "invariant");
322
323 ReferenceLocateClosure rcl(_callback, OldObjectRoot::_threads, OldObjectRoot::_stack_variable, jt);
324
325 if (jt->has_last_Java_frame()) {
326 PrivilegedElement* const pelem = jt->privileged_stack_top();
327 if (pelem != NULL) {
328 pelem->oops_do(&rcl);
329 if (rcl.complete()) {
330 return true;
331 }
332 }
333
334 // traverse the registered growable array gc_array
335 // can't do this as it is not reachable from outside
336
337 // Traverse the monitor chunks
338 MonitorChunk* chunk = jt->monitor_chunks();
339 for (; chunk != NULL; chunk = chunk->next()) {
340 chunk->oops_do(&rcl);
341 }
342
343 if (rcl.complete()) {
344 return true;
345 }
346
347 // Traverse the execution stack
348 for (StackFrameStream fst(jt); !fst.is_done(); fst.next()) {
349 fst.current()->oops_do(&rcl, NULL, fst.register_map());
350 }
351
352 } // last java frame
353
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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 "aot/aotLoader.hpp"
27 #include "classfile/classLoaderDataGraph.hpp"
28 #include "classfile/stringTable.hpp"
29 #include "gc/shared/strongRootsScope.hpp"
30 #include "jfr/leakprofiler/utilities/unifiedOop.hpp"
31 #include "jfr/leakprofiler/checkpoint/rootResolver.hpp"
32 #include "memory/iterator.hpp"
33 #include "oops/klass.hpp"
34 #include "oops/markOop.hpp"
35 #include "oops/oop.hpp"
36 #include "prims/jvmtiThreadState.hpp"
37 #include "runtime/frame.inline.hpp"
38 #include "runtime/mutexLocker.hpp"
39 #include "runtime/threadSMR.inline.hpp"
40 #include "runtime/vframe_hp.hpp"
41 #include "services/management.hpp"
42 #include "utilities/growableArray.hpp"
43
44 class ReferenceLocateClosure : public OopClosure {
45 protected:
46 RootCallback& _callback;
47 RootCallbackInfo _info;
48 bool _complete;
49
50 void do_oop_shared(const void* ref);
51
52 public:
53 ReferenceLocateClosure(RootCallback& callback,
54 OldObjectRoot::System system,
55 OldObjectRoot::Type type,
56 const void* context) : _callback(callback),
305 const address adr = (address)_callback.at(i);
306 if (jt->is_in_usable_stack(adr)) {
307 info._high = adr;
308 _complete = _callback.process(info);
309 if (_complete) {
310 return true;
311 }
312 }
313 }
314 assert(!complete(), "invariant");
315 return false;
316 }
317
318 bool ReferenceToThreadRootClosure::do_thread_stack_detailed(JavaThread* jt) {
319 assert(jt != NULL, "invariant");
320 assert(!complete(), "invariant");
321
322 ReferenceLocateClosure rcl(_callback, OldObjectRoot::_threads, OldObjectRoot::_stack_variable, jt);
323
324 if (jt->has_last_Java_frame()) {
325 // traverse the registered growable array gc_array
326 // can't do this as it is not reachable from outside
327
328 // Traverse the monitor chunks
329 MonitorChunk* chunk = jt->monitor_chunks();
330 for (; chunk != NULL; chunk = chunk->next()) {
331 chunk->oops_do(&rcl);
332 }
333
334 if (rcl.complete()) {
335 return true;
336 }
337
338 // Traverse the execution stack
339 for (StackFrameStream fst(jt); !fst.is_done(); fst.next()) {
340 fst.current()->oops_do(&rcl, NULL, fst.register_map());
341 }
342
343 } // last java frame
344
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