1 #ifndef __I386_MMAN_H__ 2 #define __I386_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 9 #define MAP_SHARED 0x01 /* Share changes */ 10 #define MAP_PRIVATE 0x02 /* Changes are private */ 11 #define MAP_TYPE 0x0f /* Mask for type of mapping */ 12 #define MAP_FIXED 0x10 /* Interpret addr exactly */ 13 #define MAP_ANONYMOUS 0x20 /* don't use a file */ 14 15 #define MAP_GROWSDOWN 0x0100 /* stack-like segment */ 16 #define MAP_DENYWRITE 0x0800 /* ETXTBSY */ 17 #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ 18 #define MAP_LOCKED 0x2000 /* pages are locked */ 19 #define MAP_NORESERVE 0x4000 /* don't check for reservations */ 20 21 #define MS_ASYNC 1 /* sync memory asynchronously */ 22 #define MS_INVALIDATE 2 /* invalidate the caches */ 23 #define MS_SYNC 4 /* synchronous memory sync */ 24 25 #define MCL_CURRENT 1 /* lock all current mappings */ 26 #define MCL_FUTURE 2 /* lock all future mappings */ 27 28 #define MADV_NORMAL 0x0 /* default page-in behavior */ 29 #define MADV_RANDOM 0x1 /* page-in minimum required */ 30 #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */ 31 #define MADV_WILLNEED 0x3 /* pre-fault pages */ 32 #define MADV_DONTNEED 0x4 /* discard these pages */ 33 34 /* compatibility flags */ 35 #define MAP_ANON MAP_ANONYMOUS 36 #define MAP_FILE 0 37 38 #endif /* __I386_MMAN_H__ */ 39