22  */

    22  */

    23 

    23 

    24 #include "precompiled.hpp"

    24 #include "precompiled.hpp"

    25 #include "classfile/classLoaderData.hpp"

    25 #include "classfile/classLoaderData.hpp"

    26 #include "classfile/stringTable.hpp"

    26 #include "classfile/stringTable.hpp"

    28 #include "classfile/systemDictionary.hpp"

    27 #include "classfile/systemDictionary.hpp"

    29 #include "code/codeCache.hpp"

    28 #include "code/codeCache.hpp"

    30 #include "compiler/oopMap.hpp"

    29 #include "compiler/oopMap.hpp"

    31 #include "gc/shared/oopStorageParState.inline.hpp"

    30 #include "gc/shared/oopStorageParState.inline.hpp"

    32 #include "gc/z/zGlobals.hpp"

    31 #include "gc/z/zGlobals.hpp"

    72 static const ZStatSubPhase ZSubPhasePauseWeakRootsTeardown("Pause Weak Roots Teardown");

    71 static const ZStatSubPhase ZSubPhasePauseWeakRootsTeardown("Pause Weak Roots Teardown");

    73 static const ZStatSubPhase ZSubPhasePauseWeakRootsVMWeakHandles("Pause Weak Roots VMWeakHandles");

    72 static const ZStatSubPhase ZSubPhasePauseWeakRootsVMWeakHandles("Pause Weak Roots VMWeakHandles");

    74 static const ZStatSubPhase ZSubPhasePauseWeakRootsJNIWeakHandles("Pause Weak Roots JNIWeakHandles");

    73 static const ZStatSubPhase ZSubPhasePauseWeakRootsJNIWeakHandles("Pause Weak Roots JNIWeakHandles");

    75 static const ZStatSubPhase ZSubPhasePauseWeakRootsJVMTIWeakExport("Pause Weak Roots JVMTIWeakExport");

    74 static const ZStatSubPhase ZSubPhasePauseWeakRootsJVMTIWeakExport("Pause Weak Roots JVMTIWeakExport");

    76 static const ZStatSubPhase ZSubPhasePauseWeakRootsJFRWeak("Pause Weak Roots JFRWeak");

    75 static const ZStatSubPhase ZSubPhasePauseWeakRootsJFRWeak("Pause Weak Roots JFRWeak");

    78 static const ZStatSubPhase ZSubPhasePauseWeakRootsStringTable("Pause Weak Roots StringTable");

    76 static const ZStatSubPhase ZSubPhasePauseWeakRootsStringTable("Pause Weak Roots StringTable");

    79 

    77 

    80 static const ZStatSubPhase ZSubPhaseConcurrentWeakRoots("Concurrent Weak Roots");

    78 static const ZStatSubPhase ZSubPhaseConcurrentWeakRoots("Concurrent Weak Roots");

    81 static const ZStatSubPhase ZSubPhaseConcurrentWeakRootsVMWeakHandles("Concurrent Weak Roots VMWeakHandles");

    79 static const ZStatSubPhase ZSubPhaseConcurrentWeakRootsVMWeakHandles("Concurrent Weak Roots VMWeakHandles");

    82 static const ZStatSubPhase ZSubPhaseConcurrentWeakRootsJNIWeakHandles("Concurrent Weak Roots JNIWeakHandles");

    80 static const ZStatSubPhase ZSubPhaseConcurrentWeakRootsJNIWeakHandles("Concurrent Weak Roots JNIWeakHandles");

   300     _string_table_iter(StringTable::weak_storage()),

   298     _string_table_iter(StringTable::weak_storage()),

   301     _jvmti_weak_export(this),

   299     _jvmti_weak_export(this),

   302     _jfr_weak(this),

   300     _jfr_weak(this),

   303     _vm_weak_handles(this),

   301     _vm_weak_handles(this),

   304     _jni_weak_handles(this),

   302     _jni_weak_handles(this),

   306     _string_table(this) {

   303     _string_table(this) {

   307   assert(SafepointSynchronize::is_at_safepoint(), "Should be at safepoint");

   304   assert(SafepointSynchronize::is_at_safepoint(), "Should be at safepoint");

   308   ZStatTimer timer(ZSubPhasePauseWeakRootsSetup);

   305   ZStatTimer timer(ZSubPhasePauseWeakRootsSetup);

   310   StringTable::reset_dead_counter();

   306   StringTable::reset_dead_counter();

   311 }

   307 }

   312 

   308 

   313 ZWeakRootsIterator::~ZWeakRootsIterator() {

   309 ZWeakRootsIterator::~ZWeakRootsIterator() {

   314   ZStatTimer timer(ZSubPhasePauseWeakRootsTeardown);

   310   ZStatTimer timer(ZSubPhasePauseWeakRootsTeardown);

   335   ZStatTimer timer(ZSubPhasePauseWeakRootsJFRWeak);

   331   ZStatTimer timer(ZSubPhasePauseWeakRootsJFRWeak);

   336   Jfr::weak_oops_do(is_alive, cl);

   332   Jfr::weak_oops_do(is_alive, cl);

   337 #endif

   333 #endif

   338 }

   334 }

   339 

   335 

   346 class ZStringTableDeadCounterBoolObjectClosure : public BoolObjectClosure  {

   336 class ZStringTableDeadCounterBoolObjectClosure : public BoolObjectClosure  {

   347 private:

   337 private:

   348   BoolObjectClosure* const _cl;

   338   BoolObjectClosure* const _cl;

   349   size_t                   _ndead;

   339   size_t                   _ndead;

   350 

   340 

   373   _string_table_iter.weak_oops_do(&counter_is_alive, cl);

   363   _string_table_iter.weak_oops_do(&counter_is_alive, cl);

   374 }

   364 }

   375 

   365 

   376 void ZWeakRootsIterator::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* cl) {

   366 void ZWeakRootsIterator::weak_oops_do(BoolObjectClosure* is_alive, OopClosure* cl) {

   377   ZStatTimer timer(ZSubPhasePauseWeakRoots);

   367   ZStatTimer timer(ZSubPhasePauseWeakRoots);

   381   if (ZWeakRoots) {

   368   if (ZWeakRoots) {

   382     _jvmti_weak_export.weak_oops_do(is_alive, cl);

   369     _jvmti_weak_export.weak_oops_do(is_alive, cl);

   383     _jfr_weak.weak_oops_do(is_alive, cl);

   370     _jfr_weak.weak_oops_do(is_alive, cl);

   384     if (!ZConcurrentVMWeakHandles) {

   371     if (!ZConcurrentVMWeakHandles) {

   385       _vm_weak_handles.weak_oops_do(is_alive, cl);

   372       _vm_weak_handles.weak_oops_do(is_alive, cl);