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src/hotspot/share/runtime/vmStructs.cpp

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rev 56044 : imported patch 8230184.patch
rev 56046 : v2.00 -> v2.05 (CR5/v2.05/8-for-jdk13) patches combined into one; merge with 8229212.patch; merge with jdk-14+11; merge with 8230184.patch.
rev 56048 : Add OM_CACHE_LINE_SIZE so that ObjectMonitor cache line sizes can be experimented with independently of DEFAULT_CACHE_LINE_SIZE; for SPARC and X64 configs that use 128 for DEFAULT_CACHE_LINE_SIZE, we are experimenting with 64; move _previous_owner_tid and _allocation_state fields to share the cache line with ObjectMonitor::_header; put ObjectMonitor::_ref_count on its own cache line after _owner; add 'int* count_p' parameter to deflate_monitor_list() and deflate_monitor_list_using_JT() and push counter updates down to where the ObjectMonitors are actually removed from the in-use lists; monitors_iterate() async deflation check should use negative ref_count; add 'JavaThread* target' param to deflate_per_thread_idle_monitors_using_JT() add deflate_common_idle_monitors_using_JT() to make it clear which JavaThread* is the target of the work and which is the calling JavaThread* (self); g_free_list, g_om_in_use_list and g_om_in_use_count are now static to synchronizer.cpp (reduce scope); add more diagnostic info to some assert()'s; minor code cleanups and code motion; save_om_ptr() should detect a race with a deflating thread that is bailing out and cause a retry when the ref_count field is not positive; merge with jdk-14+11; add special GC support for TestHumongousClassLoader.java; merge with 8230184.patch.
rev 56049 : Merge the remainder of the lock-free monitor list changes from v2.06 with v2.06a and v2.06b after running the changes through the edit scripts; merge pieces from dcubed.monitor_deflate_conc.v2.06d in dcubed.monitor_deflate_conc.v2.06[ac]; merge pieces from dcubed.monitor_deflate_conc.v2.06e into dcubed.monitor_deflate_conc.v2.06c; merge with jdk-14+11; test work around for test/jdk/tools/jlink/multireleasejar/JLinkMultiReleaseJarTest.java should not been needed anymore.


 893   nonstatic_field(ciField,                     _constant_value,                               ciConstant)                            \
 894                                                                                                                                      \
 895   nonstatic_field(ciObjectFactory,             _ci_metadata,                                  GrowableArray<ciMetadata*>*)           \
 896   nonstatic_field(ciObjectFactory,             _symbols,                                      GrowableArray<ciSymbol*>*)             \
 897   nonstatic_field(ciObjectFactory,             _unloaded_methods,                             GrowableArray<ciMethod*>*)             \
 898                                                                                                                                      \
 899   nonstatic_field(ciConstant,                  _type,                                         BasicType)                             \
 900   nonstatic_field(ciConstant,                  _value._int,                                   jint)                                  \
 901   nonstatic_field(ciConstant,                  _value._long,                                  jlong)                                 \
 902   nonstatic_field(ciConstant,                  _value._float,                                 jfloat)                                \
 903   nonstatic_field(ciConstant,                  _value._double,                                jdouble)                               \
 904   nonstatic_field(ciConstant,                  _value._object,                                ciObject*)                             \
 905                                                                                                                                      \
 906   /************/                                                                                                                     \
 907   /* Monitors */                                                                                                                     \
 908   /************/                                                                                                                     \
 909                                                                                                                                      \
 910   volatile_nonstatic_field(ObjectMonitor,      _header,                                       markWord)                              \
 911   unchecked_nonstatic_field(ObjectMonitor,     _object,                                       sizeof(void *)) /* NOTE: no type */    \
 912   unchecked_nonstatic_field(ObjectMonitor,     _owner,                                        sizeof(void *)) /* NOTE: no type */    \
 913   nonstatic_field(ObjectMonitor,               _next_om,                                      ObjectMonitor*)                        \
 914   volatile_nonstatic_field(BasicLock,          _displaced_header,                             markWord)                              \
 915   volatile_nonstatic_field(ObjectMonitor,      _contentions,                                  jint)                                  \
 916   volatile_nonstatic_field(ObjectMonitor,      _waiters,                                      jint)                                  \
 917   volatile_nonstatic_field(ObjectMonitor,      _recursions,                                   intptr_t)                              \
 918   nonstatic_field(BasicObjectLock,             _lock,                                         BasicLock)                             \
 919   nonstatic_field(BasicObjectLock,             _obj,                                          oop)                                   \
 920   static_ptr_volatile_field(ObjectSynchronizer, g_block_list,                                 PaddedObjectMonitor*)                  \
 921                                                                                                                                      \
 922   /*********************/                                                                                                            \
 923   /* Matcher (C2 only) */                                                                                                            \
 924   /*********************/                                                                                                            \
 925                                                                                                                                      \
 926   unchecked_c2_static_field(Matcher,           _regEncode,                          sizeof(Matcher::_regEncode)) /* NOTE: no type */ \
 927                                                                                                                                      \
 928   c2_nonstatic_field(Node,                     _in,                                           Node**)                                \
 929   c2_nonstatic_field(Node,                     _out,                                          Node**)                                \
 930   c2_nonstatic_field(Node,                     _cnt,                                          node_idx_t)                            \
 931   c2_nonstatic_field(Node,                     _max,                                          node_idx_t)                            \
 932   c2_nonstatic_field(Node,                     _outcnt,                                       node_idx_t)                            \
 933   c2_nonstatic_field(Node,                     _outmax,                                       node_idx_t)                            \




 893   nonstatic_field(ciField,                     _constant_value,                               ciConstant)                            \
 894                                                                                                                                      \
 895   nonstatic_field(ciObjectFactory,             _ci_metadata,                                  GrowableArray<ciMetadata*>*)           \
 896   nonstatic_field(ciObjectFactory,             _symbols,                                      GrowableArray<ciSymbol*>*)             \
 897   nonstatic_field(ciObjectFactory,             _unloaded_methods,                             GrowableArray<ciMethod*>*)             \
 898                                                                                                                                      \
 899   nonstatic_field(ciConstant,                  _type,                                         BasicType)                             \
 900   nonstatic_field(ciConstant,                  _value._int,                                   jint)                                  \
 901   nonstatic_field(ciConstant,                  _value._long,                                  jlong)                                 \
 902   nonstatic_field(ciConstant,                  _value._float,                                 jfloat)                                \
 903   nonstatic_field(ciConstant,                  _value._double,                                jdouble)                               \
 904   nonstatic_field(ciConstant,                  _value._object,                                ciObject*)                             \
 905                                                                                                                                      \
 906   /************/                                                                                                                     \
 907   /* Monitors */                                                                                                                     \
 908   /************/                                                                                                                     \
 909                                                                                                                                      \
 910   volatile_nonstatic_field(ObjectMonitor,      _header,                                       markWord)                              \
 911   unchecked_nonstatic_field(ObjectMonitor,     _object,                                       sizeof(void *)) /* NOTE: no type */    \
 912   unchecked_nonstatic_field(ObjectMonitor,     _owner,                                        sizeof(void *)) /* NOTE: no type */    \
 913   volatile_nonstatic_field(ObjectMonitor,      _next_om,                                      ObjectMonitor*)                        \
 914   volatile_nonstatic_field(BasicLock,          _displaced_header,                             markWord)                              \
 915   volatile_nonstatic_field(ObjectMonitor,      _contentions,                                  jint)                                  \
 916   volatile_nonstatic_field(ObjectMonitor,      _waiters,                                      jint)                                  \
 917   volatile_nonstatic_field(ObjectMonitor,      _recursions,                                   intptr_t)                              \
 918   nonstatic_field(BasicObjectLock,             _lock,                                         BasicLock)                             \
 919   nonstatic_field(BasicObjectLock,             _obj,                                          oop)                                   \
 920   static_ptr_volatile_field(ObjectSynchronizer, g_block_list,                                 PaddedObjectMonitor*)                  \
 921                                                                                                                                      \
 922   /*********************/                                                                                                            \
 923   /* Matcher (C2 only) */                                                                                                            \
 924   /*********************/                                                                                                            \
 925                                                                                                                                      \
 926   unchecked_c2_static_field(Matcher,           _regEncode,                          sizeof(Matcher::_regEncode)) /* NOTE: no type */ \
 927                                                                                                                                      \
 928   c2_nonstatic_field(Node,                     _in,                                           Node**)                                \
 929   c2_nonstatic_field(Node,                     _out,                                          Node**)                                \
 930   c2_nonstatic_field(Node,                     _cnt,                                          node_idx_t)                            \
 931   c2_nonstatic_field(Node,                     _max,                                          node_idx_t)                            \
 932   c2_nonstatic_field(Node,                     _outcnt,                                       node_idx_t)                            \
 933   c2_nonstatic_field(Node,                     _outmax,                                       node_idx_t)                            \


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