syscall_linux_riscv64.go raw
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
7 package unix
8
9 import "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
29 func 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
43 func Stat(path string, stat *Stat_t) (err error) {
44 return Fstatat(AT_FDCWD, path, stat, 0)
45 }
46
47 func Lchown(path string, uid int, gid int) (err error) {
48 return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW)
49 }
50
51 func 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
59 func 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
82 func setTimespec(sec, nsec int64) Timespec {
83 return Timespec{Sec: sec, Nsec: nsec}
84 }
85
86 func setTimeval(sec, usec int64) Timeval {
87 return Timeval{Sec: sec, Usec: usec}
88 }
89
90 func 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
102 func 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
114 func 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
122 func 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
134 func (r *PtraceRegs) PC() uint64 { return r.Pc }
135
136 func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc }
137
138 func (iov *Iovec) SetLen(length int) {
139 iov.Len = uint64(length)
140 }
141
142 func (msghdr *Msghdr) SetControllen(length int) {
143 msghdr.Controllen = uint64(length)
144 }
145
146 func (msghdr *Msghdr) SetIovlen(length int) {
147 msghdr.Iovlen = uint64(length)
148 }
149
150 func (cmsg *Cmsghdr) SetLen(length int) {
151 cmsg.Len = uint64(length)
152 }
153
154 func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
155 rsa.Service_name_len = uint64(length)
156 }
157
158 func Pause() error {
159 _, err := ppoll(nil, 0, nil, nil)
160 return err
161 }
162
163 func 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
169 func 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
182 func 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
191 const SYS_FSTATAT = SYS_NEWFSTATAT
192