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
 7package unix
 8
 9//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
10//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
11
12//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
13
14func setTimespec(sec, nsec int64) Timespec {
15	return Timespec{Sec: sec, Nsec: nsec}
16}
17
18func setTimeval(sec, usec int64) Timeval {
19	return Timeval{Sec: int64(sec), Usec: int32(usec)}
20}
21
22func (iov *Iovec) SetLen(length int) {
23	iov.Len = uint64(length)
24}
25
26func (msghdr *Msghdr) SetControllen(length int) {
27	msghdr.Controllen = uint32(length)
28}
29
30func (msghdr *Msghdr) SetIovlen(length int) {
31	msghdr.Iovlen = int32(length)
32}
33
34func (cmsg *Cmsghdr) SetLen(length int) {
35	cmsg.Len = uint32(length)
36}
37
38// In order to only have Timespec structure, type of Stat_t's fields
39// Atim, Mtim and Ctim is changed from StTimespec to Timespec during
40// ztypes generation.
41// On ppc64, Timespec.Nsec is an int64 while StTimespec.Nsec is an
42// int32, so the fields' value must be modified.
43func fixStatTimFields(stat *Stat_t) {
44	stat.Atim.Nsec >>= 32
45	stat.Mtim.Nsec >>= 32
46	stat.Ctim.Nsec >>= 32
47}
48
49func Fstat(fd int, stat *Stat_t) error {
50	err := fstat(fd, stat)
51	if err != nil {
52		return err
53	}
54	fixStatTimFields(stat)
55	return nil
56}
57
58func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
59	err := fstatat(dirfd, path, stat, flags)
60	if err != nil {
61		return err
62	}
63	fixStatTimFields(stat)
64	return nil
65}
66
67func Lstat(path string, stat *Stat_t) error {
68	err := lstat(path, stat)
69	if err != nil {
70		return err
71	}
72	fixStatTimFields(stat)
73	return nil
74}
75
76func Stat(path string, statptr *Stat_t) error {
77	err := stat(path, statptr)
78	if err != nil {
79		return err
80	}
81	fixStatTimFields(statptr)
82	return nil
83}