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src/share/vm/memory/virtualspace.hpp

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*** 35,44 **** --- 35,45 ---- char* _base; size_t _size; size_t _noaccess_prefix; size_t _alignment; bool _special; + int _backing_fd; private: bool _executable; // ReservedSpace ReservedSpace(char* base, size_t size, size_t alignment, bool special,
*** 109,119 **** void initialize_compressed_heap(const size_t size, size_t alignment, bool large); // Create protection page at the beginning of the space. void establish_noaccess_prefix(); public: // Constructor. Tries to find a heap that is good for compressed oops. ! ReservedHeapSpace(size_t size, size_t forced_base_alignment, bool large); // Returns the base to be used for compression, i.e. so that null can be // encoded safely and implicit null checks can work. char *compressed_oop_base() { return _base - _noaccess_prefix; } }; --- 110,120 ---- void initialize_compressed_heap(const size_t size, size_t alignment, bool large); // Create protection page at the beginning of the space. void establish_noaccess_prefix(); public: // Constructor. Tries to find a heap that is good for compressed oops. ! ReservedHeapSpace(size_t size, size_t forced_base_alignment, bool large, const char* backingFSforHeap = NULL); // Returns the base to be used for compression, i.e. so that null can be // encoded safely and implicit null checks can work. char *compressed_oop_base() { return _base - _noaccess_prefix; } };
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