src/share/vm/runtime/os.hpp

*** 309,318 ****
--- 309,322 ----
                                 size_t alignment_hint = 0);
    static char*  reserve_memory(size_t bytes, char* addr,
                                 size_t alignment_hint, MEMFLAGS flags);
    static char*  reserve_memory_aligned(size_t size, size_t alignment);
    static char*  attempt_reserve_memory_at(size_t bytes, char* addr);
+ 
+   // Map the given address range to a temporary file created at the specified directory.
+   // The address range must already be reserved for guaranteed success. If it not reserved, their could be an error while mapping leading to JVM shutdown
+   static bool   map_memory_to_file(char* base, size_t size, const char* backing_filename);
    static void   split_reserved_memory(char *base, size_t size,
                                        size_t split, bool realloc);
    static bool   commit_memory(char* addr, size_t bytes, bool executable);
    static bool   commit_memory(char* addr, size_t size, size_t alignment_hint,
                                bool executable);