[1] | 1 | #ifndef _SYS_MMAN_H |
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| 2 | #define _SYS_MMAN_H |
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| 3 | |
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| 4 | #include <sys/types.h> |
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| 5 | |
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| 6 | #define MREMAP_MAYMOVE 1UL |
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| 7 | #define MREMAP_FIXED 2UL |
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| 8 | |
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| 9 | #define PROT_READ 0x1 /* page can be read */ |
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| 10 | #define PROT_WRITE 0x2 /* page can be written */ |
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| 11 | #define PROT_EXEC 0x4 /* page can be executed */ |
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| 12 | #define PROT_NONE 0x0 /* page can not be accessed */ |
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| 13 | |
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| 14 | #define MAP_SHARED 0x0001 /* Share changes */ |
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| 15 | #define MAP_PRIVATE 0x0002 /* Changes are private */ |
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| 16 | #define MAP_ANONYMOUS 0x0004 /* don't use a file */ |
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| 17 | #define MAP_GROWSDOWN 0x0008 /* stack-like segment */ |
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| 18 | #define MAP_STACK 0x0008 |
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| 19 | #define MAP_LOCKED 0x0010 /* pages are locked */ |
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| 20 | #define MAP_HUGETLB 0x0020 /* Allocate the mapping using "huge pages." */ |
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| 21 | #define MAP_FIXED 0x0040 /* Interpret addr exactly */ |
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| 22 | #define MAP_DENYWRITE 0x200000 /* ETXTBSY */ |
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| 23 | #define MAP_EXECUTABLE 0x400000 /* mark it as an executable */ |
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| 24 | #define MAP_32BIT 0x800000 /* Put the mapping into the first 2 Gigabytes of the process address space. */ |
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| 25 | |
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| 26 | #define MAP_POPULATE 0x010000 |
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| 27 | #define MAP_NORESERVE 0x020000 /* don't check for reservations */ |
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| 28 | |
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| 29 | |
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| 30 | #define MS_ASYNC 0x0001 /* sync memory asynchronously */ |
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| 31 | #define MS_INVALIDATE 0x0002 /* invalidate mappings & caches */ |
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| 32 | #define MS_SYNC 0x0004 /* synchronous memory sync */ |
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| 33 | #define MCL_CURRENT 1 /* lock all current mappings */ |
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| 34 | #define MCL_FUTURE 2 /* lock all future mappings */ |
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| 35 | #define MADV_NORMAL 0x0 /* default page-in behavior */ |
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| 36 | #define MADV_RANDOM 0x1 /* page-in minimum required */ |
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| 37 | #define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */ |
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| 38 | #define MADV_WILLNEED 0x3 /* pre-fault pages */ |
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| 39 | #define MADV_DONTNEED 0x4 /* discard these pages */ |
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| 40 | #define MADV_MIGRATE 0x5 /* migrate page on next-touch */ |
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| 41 | |
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| 42 | /* compatibility flags */ |
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| 43 | #define MAP_ANON MAP_ANONYMOUS |
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| 44 | #define MAP_FILE 0 |
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| 45 | |
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| 46 | #define MAP_FAILED ((void *) -1) |
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| 47 | |
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| 48 | void *mmap (void *addr, size_t len, int prot, int flags, int fd, off_t offset); |
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| 49 | |
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| 50 | int munmap (void *__addr, size_t __len); |
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| 51 | extern int mprotect (void *__addr, size_t __len, int __prot); |
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| 52 | extern int msync (void *__addr, size_t __len, int __flags); |
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| 53 | extern void *mremap (void *__addr, size_t __old_len, size_t __new_len, |
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| 54 | unsigned long __may_move); |
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| 55 | extern int mincore (void *__start, size_t __len, unsigned char *__vec); |
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| 56 | |
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| 57 | /* Public structure used by mcntl */ |
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| 58 | typedef struct |
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| 59 | { |
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| 60 | uint_t mi_cid; /* cluster id */ |
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| 61 | uint_t mi_cx; /* cluster x coordinate */ |
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| 62 | uint_t mi_cy; /* cluster y coordinate */ |
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| 63 | uint_t mi_cz; /* cluster z coordinate */ |
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| 64 | } minfo_t; |
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| 65 | |
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| 66 | /* Commands used by mcntl */ |
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| 67 | #define MCNTL_READ 0x0 |
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| 68 | #define MCNTL_L1_iFLUSH 0x1 |
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| 69 | #define MCNTL_MOVE 0x2 /* this operation is not implemented in this version */ |
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| 70 | |
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| 71 | /** |
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| 72 | * Control of process virtual address & core caches |
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| 73 | * |
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| 74 | * @op : (in) one of MCNTL_XXX operations |
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| 75 | * @addr : (in) virtual address (will be arround to page base address) |
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| 76 | * @len : (in) number of pages |
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| 77 | * @info : (in/out) addr related info |
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| 78 | * |
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| 79 | * @return : 0 if OK |
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| 80 | * |
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| 81 | * Rationale: |
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| 82 | * MCNTL_READ : fills info structre and doesn't need len parameter. |
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| 83 | * MCNTL_MOVE : uses info structre as input parameter and must be initialized correctly. |
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| 84 | **/ |
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| 85 | extern int mcntl(int op, void *vaddr, size_t len, minfo_t *info); |
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| 86 | |
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| 87 | int mlockall(int flags) ; |
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| 88 | int mlock(const void *addr, size_t len); |
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| 89 | int munlock(const void *addr, size_t len); |
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| 90 | int munlockall(void); |
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| 91 | |
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| 92 | int madvise(void *start, size_t length, int advice); |
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| 93 | |
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| 94 | #define _POSIX_MAPPED_FILES |
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| 95 | |
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| 96 | #endif |
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