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// +build aix,ppc64
7
8package unix
9
10//sysnb	Getrlimit(resource int, rlim *Rlimit) (err error)
11//sysnb	Setrlimit(resource int, rlim *Rlimit) (err error)
12//sys	Seek(fd int, offset int64, whence int) (off int64, err error) = lseek
13
14//sys	mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) = mmap64
15
16func setTimespec(sec, nsec int64) Timespec {
17	return Timespec{Sec: sec, Nsec: nsec}
18}
19
20func setTimeval(sec, usec int64) Timeval {
21	return Timeval{Sec: int64(sec), Usec: int32(usec)}
22}
23
24func (iov *Iovec) SetLen(length int) {
25	iov.Len = uint64(length)
26}
27
28func (msghdr *Msghdr) SetControllen(length int) {
29	msghdr.Controllen = uint32(length)
30}
31
32func (msghdr *Msghdr) SetIovlen(length int) {
33	msghdr.Iovlen = int32(length)
34}
35
36func (cmsg *Cmsghdr) SetLen(length int) {
37	cmsg.Len = uint32(length)
38}
39
40// In order to only have Timespec structure, type of Stat_t's fields
41// Atim, Mtim and Ctim is changed from StTimespec to Timespec during
42// ztypes generation.
43// On ppc64, Timespec.Nsec is an int64 while StTimespec.Nsec is an
44// int32, so the fields' value must be modified.
45func fixStatTimFields(stat *Stat_t) {
46	stat.Atim.Nsec >>= 32
47	stat.Mtim.Nsec >>= 32
48	stat.Ctim.Nsec >>= 32
49}
50
51func Fstat(fd int, stat *Stat_t) error {
52	err := fstat(fd, stat)
53	if err != nil {
54		return err
55	}
56	fixStatTimFields(stat)
57	return nil
58}
59
60func Fstatat(dirfd int, path string, stat *Stat_t, flags int) error {
61	err := fstatat(dirfd, path, stat, flags)
62	if err != nil {
63		return err
64	}
65	fixStatTimFields(stat)
66	return nil
67}
68
69func Lstat(path string, stat *Stat_t) error {
70	err := lstat(path, stat)
71	if err != nil {
72		return err
73	}
74	fixStatTimFields(stat)
75	return nil
76}
77
78func Stat(path string, statptr *Stat_t) error {
79	err := stat(path, statptr)
80	if err != nil {
81		return err
82	}
83	fixStatTimFields(statptr)
84	return nil
85}
86