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 */