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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 | // +build riscv64,linux | |
6 | ||
7 | package unix | |
8 | ||
9 | import "unsafe" | |
10 | ||
11 | func EpollCreate(size int) (fd int, err error) { | |
12 | if size <= 0 { | |
13 | return -1, EINVAL | |
14 | } | |
15 | return EpollCreate1(0) | |
16 | } | |
17 | ||
18 | //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT | |
19 | //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 | |
20 | //sys Fchown(fd int, uid int, gid int) (err error) | |
21 | //sys Fstat(fd int, stat *Stat_t) (err error) | |
22 | //sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) | |
23 | //sys Fstatfs(fd int, buf *Statfs_t) (err error) | |
24 | //sys Ftruncate(fd int, length int64) (err error) | |
25 | //sysnb Getegid() (egid int) | |
26 | //sysnb Geteuid() (euid int) | |
27 | //sysnb Getgid() (gid int) | |
28 | //sysnb Getrlimit(resource int, rlim *Rlimit) (err error) | |
29 | //sysnb Getuid() (uid int) | |
30 | //sys Listen(s int, n int) (err error) | |
31 | //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 | |
32 | //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 | |
33 | //sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK | |
34 | ||
35 | func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { | |
36 | var ts *Timespec | |
37 | if timeout != nil { | |
38 | ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} | |
39 | } | |
40 | return Pselect(nfd, r, w, e, ts, nil) | |
41 | } | |
42 | ||
43 | //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) | |
44 | //sys Setfsgid(gid int) (err error) | |
45 | //sys Setfsuid(uid int) (err error) | |
46 | //sysnb Setregid(rgid int, egid int) (err error) | |
47 | //sysnb Setresgid(rgid int, egid int, sgid int) (err error) | |
48 | //sysnb Setresuid(ruid int, euid int, suid int) (err error) | |
49 | //sysnb Setrlimit(resource int, rlim *Rlimit) (err error) | |
50 | //sysnb Setreuid(ruid int, euid int) (err error) | |
51 | //sys Shutdown(fd int, how int) (err error) | |
52 | //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) | |
53 | ||
54 | func Stat(path string, stat *Stat_t) (err error) { | |
55 | return Fstatat(AT_FDCWD, path, stat, 0) | |
56 | } | |
57 | ||
58 | func Lchown(path string, uid int, gid int) (err error) { | |
59 | return Fchownat(AT_FDCWD, path, uid, gid, AT_SYMLINK_NOFOLLOW) | |
60 | } | |
61 | ||
62 | func Lstat(path string, stat *Stat_t) (err error) { | |
63 | return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW) | |
64 | } | |
65 | ||
66 | //sys Statfs(path string, buf *Statfs_t) (err error) | |
67 | //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) | |
68 | //sys Truncate(path string, length int64) (err error) | |
69 | ||
70 | func Ustat(dev int, ubuf *Ustat_t) (err error) { | |
71 | return ENOSYS | |
72 | } | |
73 | ||
74 | //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) | |
75 | //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) | |
76 | //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | |
77 | //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | |
78 | //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) | |
79 | //sysnb setgroups(n int, list *_Gid_t) (err error) | |
80 | //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) | |
81 | //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) | |
82 | //sysnb socket(domain int, typ int, proto int) (fd int, err error) | |
83 | //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) | |
84 | //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | |
85 | //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | |
86 | //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) | |
87 | //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) | |
88 | //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) | |
89 | //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) | |
90 | //sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) | |
91 | ||
92 | //sysnb Gettimeofday(tv *Timeval) (err error) | |
93 | ||
94 | func setTimespec(sec, nsec int64) Timespec { | |
95 | return Timespec{Sec: sec, Nsec: nsec} | |
96 | } | |
97 | ||
98 | func setTimeval(sec, usec int64) Timeval { | |
99 | return Timeval{Sec: sec, Usec: usec} | |
100 | } | |
101 | ||
102 | func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) { | |
103 | if tv == nil { | |
104 | return utimensat(dirfd, path, nil, 0) | |
105 | } | |
106 | ||
107 | ts := []Timespec{ | |
108 | NsecToTimespec(TimevalToNsec(tv[0])), | |
109 | NsecToTimespec(TimevalToNsec(tv[1])), | |
110 | } | |
111 | return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) | |
112 | } | |
113 | ||
114 | func Time(t *Time_t) (Time_t, error) { | |
115 | var tv Timeval | |
116 | err := Gettimeofday(&tv) | |
117 | if err != nil { | |
118 | return 0, err | |
119 | } | |
120 | if t != nil { | |
121 | *t = Time_t(tv.Sec) | |
122 | } | |
123 | return Time_t(tv.Sec), nil | |
124 | } | |
125 | ||
126 | func Utime(path string, buf *Utimbuf) error { | |
127 | tv := []Timeval{ | |
128 | {Sec: buf.Actime}, | |
129 | {Sec: buf.Modtime}, | |
130 | } | |
131 | return Utimes(path, tv) | |
132 | } | |
133 | ||
134 | func utimes(path string, tv *[2]Timeval) (err error) { | |
135 | if tv == nil { | |
136 | return utimensat(AT_FDCWD, path, nil, 0) | |
137 | } | |
138 | ||
139 | ts := []Timespec{ | |
140 | NsecToTimespec(TimevalToNsec(tv[0])), | |
141 | NsecToTimespec(TimevalToNsec(tv[1])), | |
142 | } | |
143 | return utimensat(AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) | |
144 | } | |
145 | ||
146 | func Pipe(p []int) (err error) { | |
147 | if len(p) != 2 { | |
148 | return EINVAL | |
149 | } | |
150 | var pp [2]_C_int | |
151 | err = pipe2(&pp, 0) | |
152 | p[0] = int(pp[0]) | |
153 | p[1] = int(pp[1]) | |
154 | return | |
155 | } | |
156 | ||
157 | //sysnb pipe2(p *[2]_C_int, flags int) (err error) | |
158 | ||
159 | func Pipe2(p []int, flags int) (err error) { | |
160 | if len(p) != 2 { | |
161 | return EINVAL | |
162 | } | |
163 | var pp [2]_C_int | |
164 | err = pipe2(&pp, flags) | |
165 | p[0] = int(pp[0]) | |
166 | p[1] = int(pp[1]) | |
167 | return | |
168 | } | |
169 | ||
170 | func (r *PtraceRegs) PC() uint64 { return r.Pc } | |
171 | ||
172 | func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc } | |
173 | ||
174 | func (iov *Iovec) SetLen(length int) { | |
175 | iov.Len = uint64(length) | |
176 | } | |
177 | ||
178 | func (msghdr *Msghdr) SetControllen(length int) { | |
179 | msghdr.Controllen = uint64(length) | |
180 | } | |
181 | ||
182 | func (cmsg *Cmsghdr) SetLen(length int) { | |
183 | cmsg.Len = uint64(length) | |
184 | } | |
185 | ||
186 | func InotifyInit() (fd int, err error) { | |
187 | return InotifyInit1(0) | |
188 | } | |
189 | ||
190 | func Dup2(oldfd int, newfd int) (err error) { | |
191 | return Dup3(oldfd, newfd, 0) | |
192 | } | |
193 | ||
194 | func Pause() error { | |
195 | _, err := ppoll(nil, 0, nil, nil) | |
196 | return err | |
197 | } | |
198 | ||
199 | func Poll(fds []PollFd, timeout int) (n int, err error) { | |
200 | var ts *Timespec | |
201 | if timeout >= 0 { | |
202 | ts = new(Timespec) | |
203 | *ts = NsecToTimespec(int64(timeout) * 1e6) | |
204 | } | |
205 | if len(fds) == 0 { | |
206 | return ppoll(nil, 0, ts, nil) | |
207 | } | |
208 | return ppoll(&fds[0], len(fds), ts, nil) | |
209 | } | |
210 | ||
211 | func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) { | |
212 | return Renameat2(olddirfd, oldpath, newdirfd, newpath, 0) | |
213 | } | |
214 | ||
215 | //sys kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error) | |
216 | ||
217 | func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error { | |
218 | cmdlineLen := len(cmdline) | |
219 | if cmdlineLen > 0 { | |
220 | // Account for the additional NULL byte added by | |
221 | // BytePtrFromString in kexecFileLoad. The kexec_file_load | |
222 | // syscall expects a NULL-terminated string. | |
223 | cmdlineLen++ | |
224 | } | |
225 | return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags) | |
226 | } |