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 riscv64 && linux
6
7package unix
8
9import "unsafe"
10
11//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT
12//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
13//sys Fchown(fd int, uid int, gid int) (err error)
14//sys Fstat(fd int, stat *Stat_t) (err error)
15//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error)
16//sys Fstatfs(fd int, buf *Statfs_t) (err error)
17//sys Ftruncate(fd int, length int64) (err error)
18//sysnb Getegid() (egid int)
19//sysnb Geteuid() (euid int)
20//sysnb Getgid() (gid int)
21//sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
22//sysnb Getuid() (uid int)
23//sys Listen(s int, n int) (err error)
24//sys MemfdSecret(flags int) (fd int, err error)
25//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
26//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
27//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
28
29func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
30 var ts *Timespec
31 if timeout != nil {
32 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
33 }
34 return pselect6(nfd, r, w, e, ts, nil)
35}
36
37//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
38//sys setfsgid(gid int) (prev int, err error)
39//sys setfsuid(uid int) (prev int, err error)
40//sys Shutdown(fd int, how int) (err error)
41//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
42
43func Stat(path string, stat *Stat_t) (err error) {
44 return Fstatat(AT_FDCWD, path, stat, 0)
45}
46
47func Lchown(path string, uid int, gid int) (err error) {
48 return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
49}
50
51func Lstat(path string, stat *Stat_t) (err error) {
52 return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
53}
54
55//sys Statfs(path string, buf *Statfs_t) (err error)
56//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
57//sys Truncate(path string, length int64) (err error)
58
59func Ustat(dev int, ubuf *Ustat_t) (err error) {
60 return ENOSYS
61}
62
63//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
64//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
65//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
66//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
67//sysnb setgroups(n int, list *_Gid_t) (err error)
68//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
69//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
70//sysnb socket(domain int, typ int, proto int) (fd int, err error)
71//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
72//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
73//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
74//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
75//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
76//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
77//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
78//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
79
80//sysnb Gettimeofday(tv *Timeval) (err error)
81
82func setTimespec(sec, nsec int64) Timespec {
83 return Timespec{Sec: sec, Nsec: nsec}
84}
85
86func setTimeval(sec, usec int64) Timeval {
87 return Timeval{Sec: sec, Usec: usec}
88}
89
90func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) {
91 if tv == nil {
92 return utimensat(dirfd, path, nil, 0)
93 }
94
95 ts := []Timespec{
96 NsecToTimespec(TimevalToNsec(tv[0])),
97 NsecToTimespec(TimevalToNsec(tv[1])),
98 }
99 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
100}
101
102func Time(t *Time_t) (Time_t, error) {
103 var tv Timeval
104 err := Gettimeofday(&tv)
105 if err != nil {
106 return 0, err
107 }
108 if t != nil {
109 *t = Time_t(tv.Sec)
110 }
111 return Time_t(tv.Sec), nil
112}
113
114func Utime(path string, buf *Utimbuf) error {
115 tv := []Timeval{
116 {Sec: buf.Actime},
117 {Sec: buf.Modtime},
118 }
119 return Utimes(path, tv)
120}
121
122func utimes(path string, tv *[2]Timeval) (err error) {
123 if tv == nil {
124 return utimensat(AT_FDCWD, path, nil, 0)
125 }
126
127 ts := []Timespec{
128 NsecToTimespec(TimevalToNsec(tv[0])),
129 NsecToTimespec(TimevalToNsec(tv[1])),
130 }
131 return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0)
132}
133
134func (r *PtraceRegs) PC() uint64 { return r.Pc }
135
136func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
137
138func (iov *Iovec) SetLen(length int) {
139 iov.Len = uint64(length)
140}
141
142func (msghdr *Msghdr) SetControllen(length int) {
143 msghdr.Controllen = uint64(length)
144}
145
146func (msghdr *Msghdr) SetIovlen(length int) {
147 msghdr.Iovlen = uint64(length)
148}
149
150func (cmsg *Cmsghdr) SetLen(length int) {
151 cmsg.Len = uint64(length)
152}
153
154func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
155 rsa.Service_name_len = uint64(length)
156}
157
158func Pause() error {
159 _, err := ppoll(nil, 0, nil, nil)
160 return err
161}
162
163func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) {
164 return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0)
165}
166
167//sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
168
169func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
170 cmdlineLen := len(cmdline)
171 if cmdlineLen > 0 {
172 // Account for the additional NULL byte added by
173 // BytePtrFromString in kexecFileLoad. The kexec_file_load
174 // syscall expects a NULL-terminated string.
175 cmdlineLen++
176 }
177 return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
178}
179
180//sys riscvHWProbe(pairs []RISCVHWProbePairs, cpuCount uintptr, cpus *CPUSet, flags uint) (err error)
181
182func RISCVHWProbe(pairs []RISCVHWProbePairs, set *CPUSet, flags uint) (err error) {
183 var setSize uintptr
184
185 if set != nil {
186 setSize = uintptr(unsafe.Sizeof(*set))
187 }
188 return riscvHWProbe(pairs, setSize, set, flags)
189}
190
191const SYS_FSTATAT = SYS_NEWFSTATAT