cubefs
1// Copyright 2015 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 arm64 && linux
6// +build arm64,linux
7
8package unix9
10import "unsafe"11
12//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
13//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
14//sys Fchown(fd int, uid int, gid int) (err error)
15//sys Fstat(fd int, stat *Stat_t) (err error)
16//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
17//sys Fstatfs(fd int, buf *Statfs_t) (err error)
18//sys Ftruncate(fd int, length int64) (err error)
19//sysnb Getegid() (egid int)
20//sysnb Geteuid() (euid int)
21//sysnb Getgid() (gid int)
22//sysnb getrlimit(resource int, rlim *Rlimit) (err error)
23//sysnb Getuid() (uid int)
24//sys Listen(s int, n int) (err error)
25//sys MemfdSecret(flags int) (fd int, err error)
26//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
27//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
28//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
29//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
30
31func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {32var ts *Timespec33if timeout != nil {34ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}35}36return Pselect(nfd, r, w, e, ts, nil)37}
38
39//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
40//sys setfsgid(gid int) (prev int, err error)
41//sys setfsuid(uid int) (prev int, err error)
42//sys Shutdown(fd int, how int) (err error)
43//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
44
45func Stat(path string, stat *Stat_t) (err error) {46return Fstatat(AT_FDCWD, path, stat, 0)47}
48
49func Lchown(path string, uid int, gid int) (err error) {50return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)51}
52
53func Lstat(path string, stat *Stat_t) (err error) {54return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)55}
56
57//sys Statfs(path string, buf *Statfs_t) (err error)
58//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
59//sys Truncate(path string, length int64) (err error)
60
61func Ustat(dev int, ubuf *Ustat_t) (err error) {62return ENOSYS63}
64
65//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
66//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
67//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
68//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
69//sysnb setgroups(n int, list *_Gid_t) (err error)
70//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
71//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
72//sysnb socket(domain int, typ int, proto int) (fd int, err error)
73//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
74//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
75//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
76//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
77//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
78//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
79//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
80//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
81
82//sysnb Gettimeofday(tv *Timeval) (err error)
83
84func setTimespec(sec, nsec int64) Timespec {85return Timespec{Sec: sec, Nsec: nsec}86}
87
88func setTimeval(sec, usec int64) Timeval {89return Timeval{Sec: sec, Usec: usec}90}
91
92func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {93if tv == nil {94return utimensat(dirfd, path, nil, 0)95}96
97ts := []Timespec{98NsecToTimespec(TimevalToNsec(tv[0])),99NsecToTimespec(TimevalToNsec(tv[1])),100}101return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)102}
103
104func Time(t *Time_t) (Time_t, error) {105var tv Timeval106err := Gettimeofday(&tv)107if err != nil {108return 0, err109}110if t != nil {111*t = Time_t(tv.Sec)112}113return Time_t(tv.Sec), nil114}
115
116func Utime(path string, buf *Utimbuf) error {117tv := []Timeval{118{Sec: buf.Actime},119{Sec: buf.Modtime},120}121return Utimes(path, tv)122}
123
124func utimes(path string, tv *[2]Timeval) (err error) {125if tv == nil {126return utimensat(AT_FDCWD, path, nil, 0)127}128
129ts := []Timespec{130NsecToTimespec(TimevalToNsec(tv[0])),131NsecToTimespec(TimevalToNsec(tv[1])),132}133return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)134}
135
136// Getrlimit prefers the prlimit64 system call. See issue 38604.
137func Getrlimit(resource int, rlim *Rlimit) error {138err := Prlimit(0, resource, nil, rlim)139if err != ENOSYS {140return err141}142return getrlimit(resource, rlim)143}
144
145func (r *PtraceRegs) PC() uint64 { return r.Pc }146
147func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }148
149func (iov *Iovec) SetLen(length int) {150iov.Len = uint64(length)151}
152
153func (msghdr *Msghdr) SetControllen(length int) {154msghdr.Controllen = uint64(length)155}
156
157func (msghdr *Msghdr) SetIovlen(length int) {158msghdr.Iovlen = uint64(length)159}
160
161func (cmsg *Cmsghdr) SetLen(length int) {162cmsg.Len = uint64(length)163}
164
165func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {166rsa.Service_name_len = uint64(length)167}
168
169func Pause() error {170_, err := ppoll(nil, 0, nil, nil)171return err172}
173
174//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
175
176func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {177cmdlineLen := len(cmdline)178if cmdlineLen > 0 {179// Account for the additional NULL byte added by180// BytePtrFromString in kexecFileLoad. The kexec_file_load181// syscall expects a NULL-terminated string.182cmdlineLen++183}184return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)185}
186