src/hotspot/share/include/cds.h

*** 31,60 ****
  // We should use only standard C types. Do not use custom types such as bool, intx,
  // etc, to avoid introducing unnecessary dependencies to other HotSpot type declarations.
  //
  // Also, this is a C header file. Do not use C++ here.
  
! #define NUM_CDS_REGIONS 8 // this must be the same as MetaspaceShared::n_regions
  #define CDS_ARCHIVE_MAGIC 0xf00baba2
  #define CDS_DYNAMIC_ARCHIVE_MAGIC 0xf00baba8
! #define CURRENT_CDS_ARCHIVE_VERSION 8
  #define INVALID_CDS_ARCHIVE_VERSION -1
  
  struct CDSFileMapRegion {
!   int        _crc;            // crc checksum of the current space
!   size_t     _file_offset;    // sizeof(this) rounded to vm page size
!   union {
!     char*    _base;           // copy-on-write base address
!     size_t   _offset;         // offset from the compressed oop encoding base, only used
!                               // by archive heap space
!   } _addr;
!   size_t     _used;           // for setting space top on read
!   int        _read_only;      // read only space?
!   int        _allow_exec;     // executable code in space?
!   void*      _oopmap;         // bitmap for relocating embedded oops
    size_t     _oopmap_size_in_bits;
!   int        _is_heap_region; // used in debug build only.
  };
  
  struct CDSFileMapHeaderBase {
    unsigned int _magic;           // identify file type
    int          _crc;             // header crc checksum
--- 31,62 ----
  // We should use only standard C types. Do not use custom types such as bool, intx,
  // etc, to avoid introducing unnecessary dependencies to other HotSpot type declarations.
  //
  // Also, this is a C header file. Do not use C++ here.
  
! #define NUM_CDS_REGIONS 9 // this must be the same as MetaspaceShared::n_regions
  #define CDS_ARCHIVE_MAGIC 0xf00baba2
  #define CDS_DYNAMIC_ARCHIVE_MAGIC 0xf00baba8
! #define CURRENT_CDS_ARCHIVE_VERSION 9
  #define INVALID_CDS_ARCHIVE_VERSION -1
  
  struct CDSFileMapRegion {
!   int     _crc;               // CRC checksum of this region.
!   int     _read_only;         // read only region?
!   int     _allow_exec;        // executable code in this region?
!   int     _is_heap_region;    // Used in debug build only.
!   int     _mapped_from_file;  // Is this region mapped from a file?
!                               // If false, this region was initialized using os::read().
!   size_t  _file_offset;       // Data for this region starts at this offset in the archive file.
!   size_t  _mapping_offset;    // This region should be mapped at this offset from the base address
!                               // - for non-heap regions, the base address is SharedBaseAddress
!                               // - for heap regions, the base address is the compressed oop encoding base
!   size_t  _used;              // Number of bytes actually used by this region (excluding padding bytes added
!                               // for alignment purposed.
!   size_t  _oopmap_offset;     // Bitmap for relocating embedded oops (offset from SharedBaseAddress).
    size_t  _oopmap_size_in_bits;
!   char*   _mapped_base;       // Actually mapped address (NULL if this region is not mapped).
  };
  
  struct CDSFileMapHeaderBase {
    unsigned int _magic;           // identify file type
    int          _crc;             // header crc checksum