1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
// Copyright 2022 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 loong64 && linux
package unix
import "unsafe"
//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
//sys Fchown(fd int, uid int, gid int) (err error)
//sys Fstatfs(fd int, buf *Statfs_t) (err error)
//sys Ftruncate(fd int, length int64) (err error)
//sysnb Getegid() (egid int)
//sysnb Geteuid() (euid int)
//sysnb Getgid() (gid int)
//sysnb Getuid() (uid int)
//sys Listen(s int, n int) (err error)
//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
var ts *Timespec
if timeout != nil {
ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
}
return pselect6(nfd, r, w, e, ts, nil)
}
//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
//sys setfsgid(gid int) (prev int, err error)
//sys setfsuid(uid int) (prev int, err error)
//sys Shutdown(fd int, how int) (err error)
//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
func timespecFromStatxTimestamp(x StatxTimestamp) Timespec {
return Timespec{
Sec: x.Sec,
Nsec: int64(x.Nsec),
}
}
func Fstatat(fd int, path string, stat *Stat_t, flags int) error {
var r Statx_t
// Do it the glibc way, add AT_NO_AUTOMOUNT.
if err := Statx(fd, path, AT_NO_AUTOMOUNT|flags, STATX_BASIC_STATS, &r); err != nil {
return err
}
stat.Dev = Mkdev(r.Dev_major, r.Dev_minor)
stat.Ino = r.Ino
stat.Mode = uint32(r.Mode)
stat.Nlink = r.Nlink
stat.Uid = r.Uid
stat.Gid = r.Gid
stat.Rdev = Mkdev(r.Rdev_major, r.Rdev_minor)
// hope we don't get to process files so large to overflow these size
// fields...
stat.Size = int64(r.Size)
stat.Blksize = int32(r.Blksize)
stat.Blocks = int64(r.Blocks)
stat.Atim = timespecFromStatxTimestamp(r.Atime)
stat.Mtim = timespecFromStatxTimestamp(r.Mtime)
stat.Ctim = timespecFromStatxTimestamp(r.Ctime)
return nil
}
func Fstat(fd int, stat *Stat_t) (err error) {
return Fstatat(fd, "", stat, AT_EMPTY_PATH)
}
func Stat(path string, stat *Stat_t) (err error) {
return Fstatat(AT_FDCWD, path, stat, 0)
}
func Lchown(path string, uid int, gid int) (err error) {
return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
}
func Lstat(path string, stat *Stat_t) (err error) {
return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
}
//sys Statfs(path string, buf *Statfs_t) (err error)
//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
//sys Truncate(path string, length int64) (err error)
func Ustat(dev int, ubuf *Ustat_t) (err error) {
return ENOSYS
}
//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
//sysnb setgroups(n int, list *_Gid_t) (err error)
//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
//sysnb socket(domain int, typ int, proto int) (fd int, err error)
//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
//sysnb Gettimeofday(tv *Timeval) (err error)
func setTimespec(sec, nsec int64) Timespec {
return Timespec{Sec: sec, Nsec: nsec}
}
func setTimeval(sec, usec int64) Timeval {
return Timeval{Sec: sec, Usec: usec}
}
func Getrlimit(resource int, rlim *Rlimit) (err error) {
err = Prlimit(0, resource, nil, rlim)
return
}
func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
if tv == nil {
return utimensat(dirfd, path, nil, 0)
}
ts := []Timespec{
NsecToTimespec(TimevalToNsec(tv[0])),
NsecToTimespec(TimevalToNsec(tv[1])),
}
return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
}
func Time(t *Time_t) (Time_t, error) {
var tv Timeval
err := Gettimeofday(&tv)
if err != nil {
return 0, err
}
if t != nil {
*t = Time_t(tv.Sec)
}
return Time_t(tv.Sec), nil
}
func Utime(path string, buf *Utimbuf) error {
tv := []Timeval{
{Sec: buf.Actime},
{Sec: buf.Modtime},
}
return Utimes(path, tv)
}
func utimes(path string, tv *[2]Timeval) (err error) {
if tv == nil {
return utimensat(AT_FDCWD, path, nil, 0)
}
ts := []Timespec{
NsecToTimespec(TimevalToNsec(tv[0])),
NsecToTimespec(TimevalToNsec(tv[1])),
}
return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
}
func (r *PtraceRegs) PC() uint64 { return r.Era }
func (r *PtraceRegs) SetPC(era uint64) { r.Era = era }
func (iov *Iovec) SetLen(length int) {
iov.Len = uint64(length)
}
func (msghdr *Msghdr) SetControllen(length int) {
msghdr.Controllen = uint64(length)
}
func (msghdr *Msghdr) SetIovlen(length int) {
msghdr.Iovlen = uint64(length)
}
func (cmsg *Cmsghdr) SetLen(length int) {
cmsg.Len = uint64(length)
}
func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
rsa.Service_name_len = uint64(length)
}
func Pause() error {
_, err := ppoll(nil, 0, nil, nil)
return err
}
func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) {
return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0)
}
//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
cmdlineLen := len(cmdline)
if cmdlineLen > 0 {
// Account for the additional NULL byte added by
// BytePtrFromString in kexecFileLoad. The kexec_file_load
// syscall expects a NULL-terminated string.
cmdlineLen++
}
return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
}
|
