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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