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      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 /* This flag is only available in WinXP+ */
     25 #ifdef FILE_MAP_EXECUTE
     26 #define PROT_EXEC     0x4
     27 #else
     28 #define PROT_EXEC        0x0
     29 #define FILE_MAP_EXECUTE 0
     30 #endif
     31 
     32 #define MAP_FILE      0x00
     33 #define MAP_SHARED    0x01
     34 #define MAP_PRIVATE   0x02
     35 #define MAP_ANONYMOUS 0x20
     36 #define MAP_ANON      MAP_ANONYMOUS
     37 #define MAP_FAILED    ((void *) -1)
     38 
     39 /*
     40  * msync() flags
     41  */
     42 #define MS_ASYNC        0x0001  /* return immediately */
     43 #define MS_INVALIDATE   0x0002  /* invalidate all cached data */
     44 #define MS_SYNC         0x0010  /* msync synchronously */
     45 
     46 /*
     47  * flock() operations
     48  */
     49 #define   LOCK_SH   1    /* shared lock */
     50 #define   LOCK_EX   2    /* exclusive lock */
     51 #define   LOCK_NB   4    /* don't block when locking */
     52 #define   LOCK_UN   8    /* unlock */
     53 
     54 void *mmap(void *start, size_t length, int prot, int flags, int fd,
     55            off_t offset);
     56 
     57 void munmap(void *addr, size_t length);
     58 
     59 int msync(void *addr, size_t length, int flags);
     60 
     61 int flock(int fd, int operation);
     62 
     63 #endif /* _WIN32 */
     64 
     65 #endif /* PROFILE_INSTRPROFILING_WINDOWS_MMAP_H */
     66