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
27 #define _NETBSD_SOURCE
30 #include <sys/types.h>
40 Mono_Posix_Syscall_mmap (void *start, mph_size_t length, int prot, int flags,
41 int fd, mph_off_t offset)
45 mph_return_val_if_size_t_overflow (length, MAP_FAILED);
46 mph_return_val_if_off_t_overflow (offset, MAP_FAILED);
48 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
50 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
53 return mmap (start, (size_t) length, _prot, _flags, fd, (off_t) offset);
57 Mono_Posix_Syscall_munmap (void *start, mph_size_t length)
59 mph_return_if_size_t_overflow (length);
61 return munmap (start, (size_t) length);
65 Mono_Posix_Syscall_mprotect (void *start, mph_size_t len, int prot)
68 mph_return_if_size_t_overflow (len);
70 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
73 return mprotect (start, (size_t) len, _prot);
77 Mono_Posix_Syscall_msync (void *start, mph_size_t len, int flags)
80 mph_return_if_size_t_overflow (len);
82 if (Mono_Posix_FromMsyncFlags (flags, &_flags) == -1)
85 return msync (start, (size_t) len, _flags);
89 Mono_Posix_Syscall_mlock (void *start, mph_size_t len)
91 mph_return_if_size_t_overflow (len);
93 return mlock (start, (size_t) len);
97 Mono_Posix_Syscall_munlock (void *start, mph_size_t len)
99 mph_return_if_size_t_overflow (len);
101 return munlock (start, (size_t) len);
106 Mono_Posix_Syscall_mremap (void *old_address, mph_size_t old_size,
107 mph_size_t new_size, guint64 flags)
111 mph_return_val_if_size_t_overflow (old_size, MAP_FAILED);
112 mph_return_val_if_size_t_overflow (new_size, MAP_FAILED);
114 if (Mono_Posix_FromMremapFlags (flags, &_flags) == -1)
118 return mremap (old_address, (size_t) old_size, (size_t) new_size,
119 (unsigned long) _flags);
120 #elif defined(__NetBSD__)
121 return mremap (old_address, (size_t) old_size, old_address,
122 (size_t) new_size, (unsigned long) _flags);
127 #endif /* def HAVE_MREMAP */
130 Mono_Posix_Syscall_mincore (void *start, mph_size_t length, unsigned char *vec)
132 mph_return_if_size_t_overflow (length);
134 return mincore (start, (size_t) length, (void*)vec);
137 #ifdef HAVE_POSIX_MADVISE
139 Mono_Posix_Syscall_posix_madvise (void *addr, mph_size_t len, gint32 advice)
141 mph_return_if_size_t_overflow (len);
143 if (Mono_Posix_FromPosixMadviseAdvice (advice, &advice) == -1)
146 return posix_madvise (addr, (size_t) len, advice);
148 #endif /* def HAVE_POSIX_MADVISE */
150 #ifdef HAVE_REMAP_FILE_PAGES
152 Mono_Posix_Syscall_remap_file_pages (void *start, mph_size_t size,
153 int prot, mph_ssize_t pgoff, int flags)
157 mph_return_if_size_t_overflow (size);
158 mph_return_if_ssize_t_overflow (pgoff);
160 if (Mono_Posix_FromMmapProts (prot, &_prot) == -1)
162 if (Mono_Posix_FromMmapFlags (flags, &_flags) == -1)
165 return remap_file_pages (start, (size_t) size, _prot, (ssize_t) pgoff, _flags);
167 #endif /* def HAVE_REMAP_FILE_PAGES */