53   static int _max_alignment;
  54   static bool _link_classes_made_progress;
  55   static bool _check_classes_made_progress;
  56   static bool _has_error_classes;
  57   static bool _archive_loading_failed;
  58  public:
  59   enum {
  60     vtbl_list_size         = 17,   // number of entries in the shared space vtable list.
  61     num_virtuals           = 200,  // maximum number of virtual functions
  62                                    // If virtual functions are added to Metadata,
  63                                    // this number needs to be increased.  Also,
  64                                    // SharedMiscCodeSize will need to be increased.
  65                                    // The following 2 sizes were based on
  66                                    // MetaspaceShared::generate_vtable_methods()
  67     vtbl_method_size       = 16,   // conservative size of the mov1 and jmp instructions
  68                                    // for the x64 platform
  69     vtbl_common_code_size  = (1*K) // conservative size of the "common_code" for the x64 platform
  70   };
  71 
  72   enum {





  73     ro = 0,  // read-only shared space in the heap
  74     rw = 1,  // read-write shared space in the heap
  75     md = 2,  // miscellaneous data for initializing tables, etc.
  76     mc = 3,  // miscellaneous code - vtable replacement.
  77     n_regions = 4
  78   };
  79 
  80   // Accessor functions to save shared space created for metadata, which has
  81   // extra space allocated at the end for miscellaneous data and code.
  82   static void set_max_alignment(int alignment) {
  83     CDS_ONLY(_max_alignment = alignment);
  84   }
  85 
  86   static int max_alignment() {
  87     CDS_ONLY(return _max_alignment);
  88     NOT_CDS(return 0);
  89   }
  90 
  91   static void prepare_for_dumping() NOT_CDS_RETURN;
  92   static void preload_and_dump(TRAPS) NOT_CDS_RETURN;

  53   static int _max_alignment;
  54   static bool _link_classes_made_progress;
  55   static bool _check_classes_made_progress;
  56   static bool _has_error_classes;
  57   static bool _archive_loading_failed;
  58  public:
  59   enum {
  60     vtbl_list_size         = 17,   // number of entries in the shared space vtable list.
  61     num_virtuals           = 200,  // maximum number of virtual functions
  62                                    // If virtual functions are added to Metadata,
  63                                    // this number needs to be increased.  Also,
  64                                    // SharedMiscCodeSize will need to be increased.
  65                                    // The following 2 sizes were based on
  66                                    // MetaspaceShared::generate_vtable_methods()
  67     vtbl_method_size       = 16,   // conservative size of the mov1 and jmp instructions
  68                                    // for the x64 platform
  69     vtbl_common_code_size  = (1*K) // conservative size of the "common_code" for the x64 platform
  70   };
  71 
  72   enum {
  73     min_ro_size = NOT_LP64(8*M) LP64_ONLY(9*M), // minimum ro and rw regions sizes based on dumping
  74     min_rw_size = NOT_LP64(7*M) LP64_ONLY(12*M) // of a shared archive using the default classlist
  75   };
  76 
  77   enum {
  78     ro = 0,  // read-only shared space in the heap
  79     rw = 1,  // read-write shared space in the heap
  80     md = 2,  // miscellaneous data for initializing tables, etc.
  81     mc = 3,  // miscellaneous code - vtable replacement.
  82     n_regions = 4
  83   };
  84 
  85   // Accessor functions to save shared space created for metadata, which has
  86   // extra space allocated at the end for miscellaneous data and code.
  87   static void set_max_alignment(int alignment) {
  88     CDS_ONLY(_max_alignment = alignment);
  89   }
  90 
  91   static int max_alignment() {
  92     CDS_ONLY(return _max_alignment);
  93     NOT_CDS(return 0);
  94   }
  95 
  96   static void prepare_for_dumping() NOT_CDS_RETURN;
  97   static void preload_and_dump(TRAPS) NOT_CDS_RETURN;