src/hotspot/share/gc/z/vmStructs_z.hpp

*** 40,49 ****
--- 40,51 ----
  
    ZGlobalsForVMStructs();
  
    uint32_t* _ZGlobalPhase;
  
+   uint32_t* _ZGlobalSeqNum;
+ 
    uintptr_t* _ZAddressGoodMask;
    uintptr_t* _ZAddressBadMask;
    uintptr_t* _ZAddressWeakBadMask;
  
    const int* _ZObjectAlignmentSmallShift;
*** 53,62 ****
--- 55,65 ----
  typedef ZAddressRangeMap<ZPageTableEntry, ZPageSizeMinShift> ZAddressRangeMapForPageTable;
  
  #define VM_STRUCTS_ZGC(nonstatic_field, volatile_nonstatic_field, static_field)                      \
    static_field(ZGlobalsForVMStructs,            _instance_p,          ZGlobalsForVMStructs*)         \
    nonstatic_field(ZGlobalsForVMStructs,         _ZGlobalPhase,        uint32_t*)                     \
+   nonstatic_field(ZGlobalsForVMStructs,         _ZGlobalSeqNum,       uint32_t*)                     \
    nonstatic_field(ZGlobalsForVMStructs,         _ZAddressGoodMask,    uintptr_t*)                    \
    nonstatic_field(ZGlobalsForVMStructs,         _ZAddressBadMask,     uintptr_t*)                    \
    nonstatic_field(ZGlobalsForVMStructs,         _ZAddressWeakBadMask, uintptr_t*)                    \
    nonstatic_field(ZGlobalsForVMStructs,         _ZObjectAlignmentSmallShift, const int*)             \
    nonstatic_field(ZGlobalsForVMStructs,         _ZObjectAlignmentSmall, const int*)                  \
*** 65,75 ****
--- 68,81 ----
                                                                                                       \
    nonstatic_field(ZHeap,                        _page_allocator,      ZPageAllocator)                \
    nonstatic_field(ZHeap,                        _pagetable,           ZPageTable)                    \
                                                                                                       \
    nonstatic_field(ZPage,                        _type,                const uint8_t)                 \
+   nonstatic_field(ZPage,                        _seqnum,              uint32_t)                      \
    nonstatic_field(ZPage,                        _virtual,             const ZVirtualMemory)          \
+   volatile_nonstatic_field(ZPage,               _top,                 uintptr_t)                     \
+   volatile_nonstatic_field(ZPage,               _refcount,            uint32_t)                      \
    nonstatic_field(ZPage,                        _forwarding,          ZForwardingTable)              \
                                                                                                       \
    nonstatic_field(ZPageAllocator,               _physical,            ZPhysicalMemoryManager)        \
    nonstatic_field(ZPageAllocator,               _used,                size_t)                        \
                                                                                                       \
*** 99,108 ****
--- 105,115 ----
    declare_constant(ZPageSizeMediumShift)                                                             \
    declare_constant(ZPageSizeMinShift)                                                                \
    declare_constant(ZAddressOffsetShift)                                                              \
    declare_constant(ZAddressOffsetBits)                                                               \
    declare_constant(ZAddressOffsetMask)                                                               \
+   declare_constant(ZAddressOffsetMax)                                                                \
    declare_constant(ZAddressSpaceStart)
  
  #define VM_TYPES_ZGC(declare_type, declare_toplevel_type, declare_integer_type)                      \
    declare_toplevel_type(ZGlobalsForVMStructs)                                                        \
    declare_type(ZCollectedHeap, CollectedHeap)                                                        \