2 * <sys/mman.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2006 Jonathan Pryor
10 #define _XOPEN_SOURCE 600
12 #ifdef PLATFORM_MACOSX
14 #define _DARWIN_C_SOURCE
18 #define __BSD_VISIBLE 1
21 #include <sys/types.h>
31 Mono_Posix_Syscall_mmap (void *start, mph_size_t length, int prot, int flags,
32 int fd, mph_off_t offset)
36 mph_return_val_if_size_t_overflow (length, MAP_FAILED);
37 mph_return_val_if_off_t_overflow (offset, MAP_FAILED);
39 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
41 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
44 return mmap (start, (size_t) length, _prot, _flags, fd, (off_t) offset);
48 Mono_Posix_Syscall_munmap (void *start, mph_size_t length)
50 mph_return_if_size_t_overflow (length);
52 return munmap (start, (size_t) length);
56 Mono_Posix_Syscall_mprotect (void *start, mph_size_t len, int prot)
59 mph_return_if_size_t_overflow (len);
61 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
64 return mprotect (start, (size_t) len, _prot);
68 Mono_Posix_Syscall_msync (void *start, mph_size_t len, int flags)
71 mph_return_if_size_t_overflow (len);
73 if (Mono_Posix_FromMsyncFlags (flags, &_flags) == -1)
76 return msync (start, (size_t) len, _flags);
80 Mono_Posix_Syscall_mlock (void *start, mph_size_t len)
82 mph_return_if_size_t_overflow (len);
84 return mlock (start, (size_t) len);
88 Mono_Posix_Syscall_munlock (void *start, mph_size_t len)
90 mph_return_if_size_t_overflow (len);
92 return munlock (start, (size_t) len);
97 Mono_Posix_Syscall_mremap (void *old_address, mph_size_t old_size,
98 mph_size_t new_size, guint64 flags)
102 mph_return_val_if_size_t_overflow (old_size, MAP_FAILED);
103 mph_return_val_if_size_t_overflow (new_size, MAP_FAILED);
105 if (Mono_Posix_FromMremapFlags (flags, &_flags) == -1)
108 return mremap (old_address, (size_t) old_size, (size_t) new_size,
109 (unsigned long) _flags);
111 #endif /* def HAVE_MREMAP */
114 Mono_Posix_Syscall_mincore (void *start, mph_size_t length, unsigned char *vec)
116 mph_return_if_size_t_overflow (length);
118 return mincore (start, (size_t) length, (void*)vec);
121 #ifdef HAVE_POSIX_MADVISE
123 Mono_Posix_Syscall_posix_madvise (void *addr, mph_size_t len, gint32 advice)
125 mph_return_if_size_t_overflow (len);
127 if (Mono_Posix_FromPosixMadviseAdvice (advice, &advice) == -1)
130 return posix_madvise (addr, (size_t) len, advice);
132 #endif /* def HAVE_POSIX_MADVISE */
134 #ifdef HAVE_REMAP_FILE_PAGES
136 Mono_Posix_Syscall_remap_file_pages (void *start, mph_size_t size,
137 int prot, mph_ssize_t pgoff, int flags)
141 mph_return_if_size_t_overflow (size);
142 mph_return_if_ssize_t_overflow (pgoff);
144 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
146 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
149 return remap_file_pages (start, (size_t) size, _prot, (ssize_t) pgoff, _flags);
151 #endif /* def HAVE_REMAP_FILE_PAGES */