#define MAP_FAILED ((void *) -1)

#define	PROT_NONE      0

#define	PROT_READ      1

#define	PROT_WRITE     2

#define	PROT_EXEC      4

#define PROT_GROWSDOWN  0x01000000

#define PROT_GROWSUP    0x02000000

#define	MAP_SHARED     0x01

#define	MAP_PRIVATE    0x02

#define	MAP_FIXED      0x10

#define MAP_TYPE       0x0f

#define MAP_FILE       0x00

#define MAP_ANON       0x20

#define MAP_ANONYMOUS  MAP_ANON

#define MAP_32BIT      0x40

#define MAP_NORESERVE  0x4000

#define MAP_GROWSDOWN  0x0100

#define MAP_DENYWRITE  0x0800

#define MAP_EXECUTABLE 0x1000

#define MAP_LOCKED     0x2000

#define MAP_POPULATE   0x8000

#define MAP_NONBLOCK   0x10000

#define MAP_STACK      0x20000

#define MAP_HUGETLB    0x40000

#define POSIX_MADV_NORMAL       0

#define POSIX_MADV_RANDOM       1

#define POSIX_MADV_SEQUENTIAL   2

#define POSIX_MADV_WILLNEED     3

#define POSIX_MADV_DONTNEED     0

#define MS_ASYNC        1

#define MS_INVALIDATE   2

#define MS_SYNC         4

#define MCL_CURRENT     1

#define MCL_FUTURE      2

#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#define MADV_NORMAL      0

#define MADV_RANDOM      1

#define MADV_SEQUENTIAL  2

#define MADV_WILLNEED    3

#define MADV_DONTNEED    4

#define MADV_REMOVE      9

#define MADV_DONTFORK    10

#define MADV_DOFORK      11

#define MADV_MERGEABLE   12

#define MADV_UNMERGEABLE 13

#define MADV_HUGEPAGE    14

#define MADV_NOHUGEPAGE  15

#define MADV_DONTDUMP    16

#define MADV_DODUMP      17

#define MADV_HWPOISON    100

#define MADV_SOFT_OFFLINE 101

#endif