tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __X8664_MMAN_H__
2#define __X8664_MMAN_H__
3
4#define PROT_READ 0x1 /* page can be read */
5#define PROT_WRITE 0x2 /* page can be written */
6#define PROT_EXEC 0x4 /* page can be executed */
7#define PROT_NONE 0x0 /* page can not be accessed */
8#define PROT_SEM 0x8
9#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */
10#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */
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#define MAP_32BIT 0x40 /* only give out 32bit addresses */
18
19#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
20#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
21#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
22#define MAP_LOCKED 0x2000 /* pages are locked */
23#define MAP_NORESERVE 0x4000 /* don't check for reservations */
24#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
25#define MAP_NONBLOCK 0x10000 /* do not block on IO */
26
27#define MS_ASYNC 1 /* sync memory asynchronously */
28#define MS_INVALIDATE 2 /* invalidate the caches */
29#define MS_SYNC 4 /* synchronous memory sync */
30
31#define MCL_CURRENT 1 /* lock all current mappings */
32#define MCL_FUTURE 2 /* lock all future mappings */
33
34#define MADV_NORMAL 0x0 /* default page-in behavior */
35#define MADV_RANDOM 0x1 /* page-in minimum required */
36#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */
37#define MADV_WILLNEED 0x3 /* pre-fault pages */
38#define MADV_DONTNEED 0x4 /* discard these pages */
39
40/* compatibility flags */
41#define MAP_ANON MAP_ANONYMOUS
42#define MAP_FILE 0
43
44#endif