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