2 * <sys/mman.h> wrapper functions.
5 * Jonathan Pryor (jonpryor@vt.edu)
7 * Copyright (C) 2004-2006 Jonathan Pryor
13 #define _XOPEN_SOURCE 600
16 #ifdef PLATFORM_MACOSX
18 #define _DARWIN_C_SOURCE
22 #define __BSD_VISIBLE 1
25 #include <sys/types.h>
35 Mono_Posix_Syscall_mmap (void *start, mph_size_t length, int prot, int flags,
36 int fd, mph_off_t offset)
40 mph_return_val_if_size_t_overflow (length, MAP_FAILED);
41 mph_return_val_if_off_t_overflow (offset, MAP_FAILED);
43 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
45 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
48 return mmap (start, (size_t) length, _prot, _flags, fd, (off_t) offset);
52 Mono_Posix_Syscall_munmap (void *start, mph_size_t length)
54 mph_return_if_size_t_overflow (length);
56 return munmap (start, (size_t) length);
60 Mono_Posix_Syscall_mprotect (void *start, mph_size_t len, int prot)
63 mph_return_if_size_t_overflow (len);
65 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
68 return mprotect (start, (size_t) len, _prot);
72 Mono_Posix_Syscall_msync (void *start, mph_size_t len, int flags)
75 mph_return_if_size_t_overflow (len);
77 if (Mono_Posix_FromMsyncFlags (flags, &_flags) == -1)
80 return msync (start, (size_t) len, _flags);
84 Mono_Posix_Syscall_mlock (void *start, mph_size_t len)
86 mph_return_if_size_t_overflow (len);
88 return mlock (start, (size_t) len);
92 Mono_Posix_Syscall_munlock (void *start, mph_size_t len)
94 mph_return_if_size_t_overflow (len);
96 return munlock (start, (size_t) len);
101 Mono_Posix_Syscall_mremap (void *old_address, mph_size_t old_size,
102 mph_size_t new_size, guint64 flags)
106 mph_return_val_if_size_t_overflow (old_size, MAP_FAILED);
107 mph_return_val_if_size_t_overflow (new_size, MAP_FAILED);
109 if (Mono_Posix_FromMremapFlags (flags, &_flags) == -1)
113 return mremap (old_address, (size_t) old_size, (size_t) new_size,
114 (unsigned long) _flags);
115 #elif defined(__NetBSD__)
116 return mremap (old_address, (size_t) old_size, old_address,
117 (size_t) new_size, (unsigned long) _flags);
122 #endif /* def HAVE_MREMAP */
125 Mono_Posix_Syscall_mincore (void *start, mph_size_t length, unsigned char *vec)
127 mph_return_if_size_t_overflow (length);
129 return mincore (start, (size_t) length, (void*)vec);
132 #ifdef HAVE_POSIX_MADVISE
134 Mono_Posix_Syscall_posix_madvise (void *addr, mph_size_t len, gint32 advice)
136 mph_return_if_size_t_overflow (len);
138 if (Mono_Posix_FromPosixMadviseAdvice (advice, &advice) == -1)
141 return posix_madvise (addr, (size_t) len, advice);
143 #endif /* def HAVE_POSIX_MADVISE */
145 #ifdef HAVE_REMAP_FILE_PAGES
147 Mono_Posix_Syscall_remap_file_pages (void *start, mph_size_t size,
148 int prot, mph_ssize_t pgoff, int flags)
152 mph_return_if_size_t_overflow (size);
153 mph_return_if_ssize_t_overflow (pgoff);
155 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
157 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
160 return remap_file_pages (start, (size_t) size, _prot, (ssize_t) pgoff, _flags);
162 #endif /* def HAVE_REMAP_FILE_PAGES */