Source file src/pkg/cmd/vendor/golang.org/x/sys/unix/dev_aix_ppc64.go

     1	// Copyright 2018 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	// +build aix
     6	// +build ppc64
     7	
     8	// Functions to access/create device major and minor numbers matching the
     9	// encoding used AIX.
    10	
    11	package unix
    12	
    13	// Major returns the major component of a Linux device number.
    14	func Major(dev uint64) uint32 {
    15		return uint32((dev & 0x3fffffff00000000) >> 32)
    16	}
    17	
    18	// Minor returns the minor component of a Linux device number.
    19	func Minor(dev uint64) uint32 {
    20		return uint32((dev & 0x00000000ffffffff) >> 0)
    21	}
    22	
    23	// Mkdev returns a Linux device number generated from the given major and minor
    24	// components.
    25	func Mkdev(major, minor uint32) uint64 {
    26		var DEVNO64 uint64
    27		DEVNO64 = 0x8000000000000000
    28		return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
    29	}
    30	

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