rss-tools: vendor/golang.org/x/sys/unix/dev_aix

rss-tools/vendor/golang.org/x/sys/unix/dev_aix_ppc64.go (view raw)

Oleksandr Smirnov we're vendoring now, 7 days ago

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build aix && ppc64

// Functions to access/create device major and minor numbers matching the
// encoding used AIX.

package unix

// Major returns the major component of a Linux device number.
func Major(dev uint64) uint32 {
	return uint32((dev & 0x3fffffff00000000) >> 32)
}

// Minor returns the minor component of a Linux device number.
func Minor(dev uint64) uint32 {
	return uint32((dev & 0x00000000ffffffff) >> 0)
}

// Mkdev returns a Linux device number generated from the given major and minor
// components.
func Mkdev(major, minor uint32) uint64 {
	var DEVNO64 uint64
	DEVNO64 = 0x8000000000000000
	return ((uint64(major) << 32) | (uint64(minor) & 0x00000000FFFFFFFF) | DEVNO64)
}

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	//go:build aix && ppc64
6
7	// Functions to access/create device major and minor numbers matching the
8	// encoding used AIX.
9
10	package unix
11
12	// Major returns the major component of a Linux device number.
13	func Major(dev uint64) uint32 {
14	return uint32((dev & 0x3fffffff00000000) >> 32)
15	}
16
17	// Minor returns the minor component of a Linux device number.
18	func Minor(dev uint64) uint32 {
19	return uint32((dev & 0x00000000ffffffff) >> 0)
20	}
21
22	// Mkdev returns a Linux device number generated from the given major and minor
23	// components.
24	func Mkdev(major, minor uint32) uint64 {
25	var DEVNO64 uint64
26	DEVNO64 = 0x8000000000000000
27	return ((uint64(major) << 32) \| (uint64(minor) & 0x00000000FFFFFFFF) \| DEVNO64)
28	}