compilers/linux86-0.16.17/libc/include/linux/mman.h

   1 #ifndef _SYS_MMAN_H
   2 #define _SYS_MMAN_H
   3
   4 #include <features.h>
   5 #include <sys/types.h>
   6
   7 #define PROT_READ       0x1             /* page can be read */
   8 #define PROT_WRITE      0x2             /* page can be written */
   9 #define PROT_EXEC       0x4             /* page can be executed */
  10 #define PROT_NONE       0x0             /* page can not be accessed */
  11
  12 #define MAP_SHARED      0x01            /* Share changes */
  13 #define MAP_PRIVATE     0x02            /* Changes are private */
  14 #define MAP_TYPE        0x0f            /* Mask for type of mapping */
  15 #define MAP_FIXED       0x10            /* Interpret addr exactly */
  16 #define MAP_ANONYMOUS   0x20            /* don't use a file */
  17
  18 #define MAP_GROWSDOWN   0x0100          /* stack-like segment */
  19 #define MAP_DENYWRITE   0x0800          /* ETXTBSY */
  20 #define MAP_EXECUTABLE  0x1000          /* mark it as a executable */
  21 #define MAP_LOCKED      0x2000          /* pages are locked */
  22
  23 #define MS_ASYNC        1               /* sync memory asynchronously */
  24 #define MS_INVALIDATE   2               /* invalidate the caches */
  25 #define MS_SYNC         4               /* synchronous memory sync */
  26
  27 #define MCL_CURRENT     1               /* lock all current mappings */
  28 #define MCL_FUTURE      2               /* lock all future mappings */
  29
  30 /* compatibility flags */
  31 #define MAP_ANON        MAP_ANONYMOUS
  32 #define MAP_FILE        0
  33
  34 #define MREMAP_MAYMOVE  1
  35
  36 extern __ptr_t mmap __P((__ptr_t __addr, size_t __len,
  37                 int __prot, int __flags, int __fd, off_t __off));
  38 extern int munmap __P((__ptr_t __addr, size_t __len));
  39 extern int mprotect __P ((__const __ptr_t __addr, size_t __len, int __prot));
  40
  41 extern int msync __P((__ptr_t __addr, size_t __len, int __flags));
  42
  43 extern int mlock __P((__const __ptr_t __addr, size_t __len));
  44 extern int munlock __P((__const __ptr_t __addr, size_t __len));
  45
  46 extern int mlockall __P((int __flags));
  47 extern int munlockall __P((void));
  48
  49 extern __ptr_t mremap __P((__ptr_t __addr, size_t __old_len,
  50                 size_t __new_len, int __may_move));
  51
  52 #endif /* _SYS_MMAN_H */