1 /*===- WindowsMMap.h - Support library for PGO instrumentation ------------===*\
2 |*
3 |*                     The LLVM Compiler Infrastructure
4 |*
5 |* This file is distributed under the University of Illinois Open Source
6 |* License. See LICENSE.TXT for details.
7 |*
8 \*===----------------------------------------------------------------------===*/
9 
10 #ifndef PROFILE_INSTRPROFILING_WINDOWS_MMAP_H
11 #define PROFILE_INSTRPROFILING_WINDOWS_MMAP_H
12 
13 #if defined(_WIN32)
14 
15 #include <basetsd.h>
16 #include <io.h>
17 #include <sys/types.h>
18 
19 /*
20  * mmap() flags
21  */
22 #define PROT_READ     0x1
23 #define PROT_WRITE    0x2
24 #define PROT_EXEC     0x0
25 
26 #define MAP_FILE      0x00
27 #define MAP_SHARED    0x01
28 #define MAP_PRIVATE   0x02
29 #define MAP_ANONYMOUS 0x20
30 #define MAP_ANON      MAP_ANONYMOUS
31 #define MAP_FAILED    ((void *) -1)
32 
33 /*
34  * msync() flags
35  */
36 #define MS_ASYNC        0x0001  /* return immediately */
37 #define MS_INVALIDATE   0x0002  /* invalidate all cached data */
38 #define MS_SYNC         0x0010  /* msync synchronously */
39 
40 /*
41  * flock() operations
42  */
43 #define   LOCK_SH   1    /* shared lock */
44 #define   LOCK_EX   2    /* exclusive lock */
45 #define   LOCK_NB   4    /* don't block when locking */
46 #define   LOCK_UN   8    /* unlock */
47 
48 #ifdef __USE_FILE_OFFSET64
49 # define DWORD_HI(x) (x >> 32)
50 # define DWORD_LO(x) ((x) & 0xffffffff)
51 #else
52 # define DWORD_HI(x) (0)
53 # define DWORD_LO(x) (x)
54 #endif
55 
56 void *mmap(void *start, size_t length, int prot, int flags, int fd,
57            off_t offset);
58 
59 void munmap(void *addr, size_t length);
60 
61 int msync(void *addr, size_t length, int flags);
62 
63 int flock(int fd, int operation);
64 
65 #endif /* _WIN32 */
66 
67 #endif /* PROFILE_INSTRPROFILING_WINDOWS_MMAP_H */
68