2 * <sys/mman.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2006 Jonathan Pryor
12 #define _XOPEN_SOURCE 600
14 #ifdef PLATFORM_MACOSX
16 #define _DARWIN_C_SOURCE
20 #define __BSD_VISIBLE 1
23 #include <sys/types.h>
33 Mono_Posix_Syscall_mmap (void *start
, mph_size_t length
, int prot
, int flags
,
34 int fd
, mph_off_t offset
)
38 mph_return_val_if_size_t_overflow (length
, MAP_FAILED
);
39 mph_return_val_if_off_t_overflow (offset
, MAP_FAILED
);
41 if (Mono_Posix_FromMmapProts (prot
, &_prot
) == -1)
43 if (Mono_Posix_FromMmapFlags (flags
, &_flags
) == -1)
46 return mmap (start
, (size_t) length
, _prot
, _flags
, fd
, (off_t
) offset
);
50 Mono_Posix_Syscall_munmap (void *start
, mph_size_t length
)
52 mph_return_if_size_t_overflow (length
);
54 return munmap (start
, (size_t) length
);
58 Mono_Posix_Syscall_mprotect (void *start
, mph_size_t len
, int prot
)
61 mph_return_if_size_t_overflow (len
);
63 if (Mono_Posix_FromMmapProts (prot
, &_prot
) == -1)
66 return mprotect (start
, (size_t) len
, _prot
);
70 Mono_Posix_Syscall_msync (void *start
, mph_size_t len
, int flags
)
73 mph_return_if_size_t_overflow (len
);
75 if (Mono_Posix_FromMsyncFlags (flags
, &_flags
) == -1)
78 return msync (start
, (size_t) len
, _flags
);
82 Mono_Posix_Syscall_mlock (void *start
, mph_size_t len
)
84 mph_return_if_size_t_overflow (len
);
86 return mlock (start
, (size_t) len
);
90 Mono_Posix_Syscall_munlock (void *start
, mph_size_t len
)
92 mph_return_if_size_t_overflow (len
);
94 return munlock (start
, (size_t) len
);
99 Mono_Posix_Syscall_mremap (void *old_address
, mph_size_t old_size
,
100 mph_size_t new_size
, guint64 flags
)
104 mph_return_val_if_size_t_overflow (old_size
, MAP_FAILED
);
105 mph_return_val_if_size_t_overflow (new_size
, MAP_FAILED
);
107 if (Mono_Posix_FromMremapFlags (flags
, &_flags
) == -1)
110 return mremap (old_address
, (size_t) old_size
, (size_t) new_size
,
111 (unsigned long) _flags
);
113 #endif /* def HAVE_MREMAP */
116 Mono_Posix_Syscall_mincore (void *start
, mph_size_t length
, unsigned char *vec
)
118 mph_return_if_size_t_overflow (length
);
120 return mincore (start
, (size_t) length
, (void*)vec
);
123 #ifdef HAVE_POSIX_MADVISE
125 Mono_Posix_Syscall_posix_madvise (void *addr
, mph_size_t len
, gint32 advice
)
127 mph_return_if_size_t_overflow (len
);
129 if (Mono_Posix_FromPosixMadviseAdvice (advice
, &advice
) == -1)
132 return posix_madvise (addr
, (size_t) len
, advice
);
134 #endif /* def HAVE_POSIX_MADVISE */
136 #ifdef HAVE_REMAP_FILE_PAGES
138 Mono_Posix_Syscall_remap_file_pages (void *start
, mph_size_t size
,
139 int prot
, mph_ssize_t pgoff
, int flags
)
143 mph_return_if_size_t_overflow (size
);
144 mph_return_if_ssize_t_overflow (pgoff
);
146 if (Mono_Posix_FromMmapProts (prot
, &_prot
) == -1)
148 if (Mono_Posix_FromMmapFlags (flags
, &_flags
) == -1)
151 return remap_file_pages (start
, (size_t) size
, _prot
, (ssize_t
) pgoff
, _flags
);
153 #endif /* def HAVE_REMAP_FILE_PAGES */