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 69 void *mmap(void *start, size_t length, int prot, int flags, int fd, 70 off_t offset); 71 72 void munmap(void *addr, size_t length); 73 74 int msync(void *addr, size_t length, int flags); 75 76 int madvise(void *addr, size_t length, int advice); 77 78 int flock(int fd, int operation); 79 80 #endif /* _WIN32 */ 81 82 #endif /* PROFILE_INSTRPROFILING_WINDOWS_MMAP_H */ 83