1#ifndef _SYS_SYSMACROS_H
 2#define _SYS_SYSMACROS_H
 3
 4#define major(x) \
 5	((unsigned)( (((x)>>31>>1) & 0xfffff000) | (((x)>>8) & 0x00000fff) ))
 6#define minor(x) \
 7	((unsigned)( (((x)>>12) & 0xffffff00) | ((x) & 0x000000ff) ))
 8
 9#define makedev(x,y) ( \
10        (((x)&0xfffff000ULL) << 32) | \
11	(((x)&0x00000fffULL) << 8) | \
12        (((y)&0xffffff00ULL) << 12) | \
13	(((y)&0x000000ffULL)) )
14
15#endif