compiler-rt/lib/profile/WindowsMMap.h

   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 */