1/*===- WindowsMMap.h - Support library for PGO instrumentation ------------===*\
2|*
3|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4|* See https://llvm.org/LICENSE.txt for license information.
5|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6|*
7\*===----------------------------------------------------------------------===*/
8
9#ifndef PROFILE_INSTRPROFILING_WINDOWS_MMAP_H
10#define PROFILE_INSTRPROFILING_WINDOWS_MMAP_H
11
12#if defined(_WIN32)
13
14#include <basetsd.h>
15#include <io.h>
16#include <sys/types.h>
17
18/*
19 * mmap() flags
20 */
21#define PROT_READ     0x1
22#define PROT_WRITE    0x2
23#define PROT_EXEC     0x0
24
25#define MAP_FILE      0x00
26#define MAP_SHARED    0x01
27#define MAP_PRIVATE   0x02
28#define MAP_ANONYMOUS 0x20
29#define MAP_ANON      MAP_ANONYMOUS
30#define MAP_FAILED    ((void *) -1)
31
32/*
33 * msync() flags
34 */
35#define MS_ASYNC        0x0001  /* return immediately */
36#define MS_INVALIDATE   0x0002  /* invalidate all cached data */
37#define MS_SYNC         0x0010  /* msync synchronously */
38
39/*
40 * madvise() flags
41 */
42
43#define MADV_NORMAL     0   /* no special treatment */
44#define MADV_WILLNEED   3   /* expect access in the near future */
45#define MADV_DONTNEED   4   /* do not expect access in the near future */
46
47/*
48 * flock() operations
49 */
50#define   LOCK_SH   1    /* shared lock */
51#define   LOCK_EX   2    /* exclusive lock */
52#define   LOCK_NB   4    /* don't block when locking */
53#define   LOCK_UN   8    /* unlock */
54
55#ifdef __USE_FILE_OFFSET64
56# define DWORD_HI(x) (x >> 32)
57# define DWORD_LO(x) ((x) & 0xffffffff)
58#else
59# define DWORD_HI(x) (0)
60# define DWORD_LO(x) (x)
61#endif
62
63#define mmap __llvm_profile_mmap
64#define munmap __llvm_profile_munmap
65#define msync __llvm_profile_msync
66#define madvise __llvm_profile_madvise
67#define flock __llvm_profile_flock
68
69void *mmap(void *start, size_t length, int prot, int flags, int fd,
70           off_t offset);
71
72void munmap(void *addr, size_t length);
73
74int msync(void *addr, size_t length, int flags);
75
76int madvise(void *addr, size_t length, int advice);
77
78int flock(int fd, int operation);
79
80#endif /* _WIN32 */
81
82#endif /* PROFILE_INSTRPROFILING_WINDOWS_MMAP_H */
83