src/hotspot/share/runtime/os.hpp

*** 112,122 ****
      _page_sizes[0] = default_page_size;
      _page_sizes[1] = 0; // sentinel
    }
  
    static char*  pd_reserve_memory(size_t bytes, char* addr = 0,
!                                   size_t alignment_hint = 0);
    static char*  pd_attempt_reserve_memory_at(size_t bytes, char* addr);
    static char*  pd_attempt_reserve_memory_at(size_t bytes, char* addr, int file_desc);
    static bool   pd_commit_memory(char* addr, size_t bytes, bool executable);
    static bool   pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
                                   bool executable);
--- 112,123 ----
      _page_sizes[0] = default_page_size;
      _page_sizes[1] = 0; // sentinel
    }
  
    static char*  pd_reserve_memory(size_t bytes, char* addr = 0,
!                                   size_t alignment_hint = 0,
!                                   bool executable = false);
    static char*  pd_attempt_reserve_memory_at(size_t bytes, char* addr);
    static char*  pd_attempt_reserve_memory_at(size_t bytes, char* addr, int file_desc);
    static bool   pd_commit_memory(char* addr, size_t bytes, bool executable);
    static bool   pd_commit_memory(char* addr, size_t size, size_t alignment_hint,
                                   bool executable);
*** 125,135 ****
    static void   pd_commit_memory_or_exit(char* addr, size_t bytes,
                                           bool executable, const char* mesg);
    static void   pd_commit_memory_or_exit(char* addr, size_t size,
                                           size_t alignment_hint,
                                           bool executable, const char* mesg);
!   static bool   pd_uncommit_memory(char* addr, size_t bytes);
    static bool   pd_release_memory(char* addr, size_t bytes);
  
    static char*  pd_map_memory(int fd, const char* file_name, size_t file_offset,
                             char *addr, size_t bytes, bool read_only = false,
                             bool allow_exec = false);
--- 126,136 ----
    static void   pd_commit_memory_or_exit(char* addr, size_t bytes,
                                           bool executable, const char* mesg);
    static void   pd_commit_memory_or_exit(char* addr, size_t size,
                                           size_t alignment_hint,
                                           bool executable, const char* mesg);
!   static bool   pd_uncommit_memory(char* addr, size_t bytes, bool exec);
    static bool   pd_release_memory(char* addr, size_t bytes);
  
    static char*  pd_map_memory(int fd, const char* file_name, size_t file_offset,
                             char *addr, size_t bytes, bool read_only = false,
                             bool allow_exec = false);
*** 309,319 ****
                                                    const char* base,
                                                    const size_t size);
  
    static int    vm_allocation_granularity();
    static char*  reserve_memory(size_t bytes, char* addr = 0,
!                                size_t alignment_hint = 0, int file_desc = -1);
    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, int file_desc = -1);
    static char*  attempt_reserve_memory_at(size_t bytes, char* addr, int file_desc = -1);
  
--- 310,321 ----
                                                    const char* base,
                                                    const size_t size);
  
    static int    vm_allocation_granularity();
    static char*  reserve_memory(size_t bytes, char* addr = 0,
!                                size_t alignment_hint = 0, int file_desc = -1,
!                                bool executable = false);
    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, int file_desc = -1);
    static char*  attempt_reserve_memory_at(size_t bytes, char* addr, int file_desc = -1);
  
*** 336,346 ****
    static void   commit_memory_or_exit(char* addr, size_t bytes,
                                        bool executable, const char* mesg);
    static void   commit_memory_or_exit(char* addr, size_t size,
                                        size_t alignment_hint,
                                        bool executable, const char* mesg);
!   static bool   uncommit_memory(char* addr, size_t bytes);
    static bool   release_memory(char* addr, size_t bytes);
  
    // Touch memory pages that cover the memory range from start to end (exclusive)
    // to make the OS back the memory range with actual memory.
    // Current implementation may not touch the last page if unaligned addresses
--- 338,348 ----
    static void   commit_memory_or_exit(char* addr, size_t bytes,
                                        bool executable, const char* mesg);
    static void   commit_memory_or_exit(char* addr, size_t size,
                                        size_t alignment_hint,
                                        bool executable, const char* mesg);
!   static bool   uncommit_memory(char* addr, size_t bytes, bool exec);
    static bool   release_memory(char* addr, size_t bytes);
  
    // Touch memory pages that cover the memory range from start to end (exclusive)
    // to make the OS back the memory range with actual memory.
    // Current implementation may not touch the last page if unaligned addresses