1  /* mips64n32 uses __NR_mmap for mmap64 while still having sizeof (off_t)
       2     smaller than sizeof (off64_t).  So it allows mapping large offsets
       3     using mmap64 than 32-bit archs which uses __NR_mmap2.  */
       4  
       5  static inline uint64_t
       6  mmap64_maximum_offset (long int page_shift)
       7  {
       8  #if _MIPS_SIM == _ABIN32 || _MIPS_SIM == _ABI64
       9    return UINT64_MAX;
      10  #else
      11    return (UINT64_C(1) << (page_shift + (8 * sizeof (off_t)))) - 1;
      12  #endif
      13  }