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1 | // Copyright 2016 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 linux | |
6 | // +build mips mipsle | |
7 | ||
8 | package unix | |
9 | ||
10 | import ( | |
11 | "syscall" | |
12 | "unsafe" | |
13 | ) | |
14 | ||
15 | func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) | |
16 | ||
17 | //sys Dup2(oldfd int, newfd int) (err error) | |
18 | //sysnb EpollCreate(size int) (fd int, err error) | |
19 | //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) | |
20 | //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 | |
21 | //sys Fchown(fd int, uid int, gid int) (err error) | |
22 | //sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64 | |
23 | //sysnb Getegid() (egid int) | |
24 | //sysnb Geteuid() (euid int) | |
25 | //sysnb Getgid() (gid int) | |
26 | //sysnb Getuid() (uid int) | |
27 | //sys Lchown(path string, uid int, gid int) (err error) | |
28 | //sys Listen(s int, n int) (err error) | |
29 | //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 | |
30 | //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 | |
107c1cdb | 31 | //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) |
15c0b25d AP |
32 | //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT |
33 | //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64 | |
34 | //sys Setfsgid(gid int) (err error) | |
35 | //sys Setfsuid(uid int) (err error) | |
36 | //sysnb Setregid(rgid int, egid int) (err error) | |
37 | //sysnb Setresgid(rgid int, egid int, sgid int) (err error) | |
38 | //sysnb Setresuid(ruid int, euid int, suid int) (err error) | |
39 | //sysnb Setreuid(ruid int, euid 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 int, err error) | |
42 | //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) | |
43 | //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64 | |
44 | //sys Ustat(dev int, ubuf *Ustat_t) (err error) | |
45 | //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) | |
46 | //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) | |
47 | //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | |
48 | //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) | |
49 | //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) | |
50 | //sysnb setgroups(n int, list *_Gid_t) (err error) | |
51 | //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) | |
52 | //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) | |
53 | //sysnb socket(domain int, typ int, proto int) (fd int, err error) | |
54 | //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) | |
55 | //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | |
56 | //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) | |
57 | //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) | |
58 | //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) | |
59 | //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) | |
60 | //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) | |
61 | ||
62 | //sysnb InotifyInit() (fd int, err error) | |
63 | //sys Ioperm(from int, num int, on int) (err error) | |
64 | //sys Iopl(level int) (err error) | |
65 | ||
66 | //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) | |
67 | //sysnb Gettimeofday(tv *Timeval) (err error) | |
68 | //sysnb Time(t *Time_t) (tt Time_t, err error) | |
69 | //sys Utime(path string, buf *Utimbuf) (err error) | |
70 | //sys utimes(path string, times *[2]Timeval) (err error) | |
71 | ||
72 | //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 | |
73 | //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64 | |
74 | //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64 | |
75 | //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64 | |
76 | ||
77 | //sys Pause() (err error) | |
78 | ||
79 | func Fstatfs(fd int, buf *Statfs_t) (err error) { | |
80 | _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) | |
81 | if e != 0 { | |
82 | err = errnoErr(e) | |
83 | } | |
84 | return | |
85 | } | |
86 | ||
87 | func Statfs(path string, buf *Statfs_t) (err error) { | |
88 | p, err := BytePtrFromString(path) | |
89 | if err != nil { | |
90 | return err | |
91 | } | |
92 | _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) | |
93 | if e != 0 { | |
94 | err = errnoErr(e) | |
95 | } | |
96 | return | |
97 | } | |
98 | ||
99 | func Seek(fd int, offset int64, whence int) (off int64, err error) { | |
100 | _, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0) | |
101 | if e != 0 { | |
102 | err = errnoErr(e) | |
103 | } | |
104 | return | |
105 | } | |
106 | ||
107 | func setTimespec(sec, nsec int64) Timespec { | |
108 | return Timespec{Sec: int32(sec), Nsec: int32(nsec)} | |
109 | } | |
110 | ||
111 | func setTimeval(sec, usec int64) Timeval { | |
112 | return Timeval{Sec: int32(sec), Usec: int32(usec)} | |
113 | } | |
114 | ||
115 | //sysnb pipe2(p *[2]_C_int, flags int) (err error) | |
116 | ||
117 | func Pipe2(p []int, flags int) (err error) { | |
118 | if len(p) != 2 { | |
119 | return EINVAL | |
120 | } | |
121 | var pp [2]_C_int | |
122 | err = pipe2(&pp, flags) | |
123 | p[0] = int(pp[0]) | |
124 | p[1] = int(pp[1]) | |
125 | return | |
126 | } | |
127 | ||
128 | //sysnb pipe() (p1 int, p2 int, err error) | |
129 | ||
130 | func Pipe(p []int) (err error) { | |
131 | if len(p) != 2 { | |
132 | return EINVAL | |
133 | } | |
134 | p[0], p[1], err = pipe() | |
135 | return | |
136 | } | |
137 | ||
138 | //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) | |
139 | ||
140 | func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) { | |
141 | page := uintptr(offset / 4096) | |
142 | if offset != int64(page)*4096 { | |
143 | return 0, EINVAL | |
144 | } | |
145 | return mmap2(addr, length, prot, flags, fd, page) | |
146 | } | |
147 | ||
148 | const rlimInf32 = ^uint32(0) | |
149 | const rlimInf64 = ^uint64(0) | |
150 | ||
151 | type rlimit32 struct { | |
152 | Cur uint32 | |
153 | Max uint32 | |
154 | } | |
155 | ||
156 | //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT | |
157 | ||
158 | func Getrlimit(resource int, rlim *Rlimit) (err error) { | |
159 | err = prlimit(0, resource, nil, rlim) | |
160 | if err != ENOSYS { | |
161 | return err | |
162 | } | |
163 | ||
164 | rl := rlimit32{} | |
165 | err = getrlimit(resource, &rl) | |
166 | if err != nil { | |
167 | return | |
168 | } | |
169 | ||
170 | if rl.Cur == rlimInf32 { | |
171 | rlim.Cur = rlimInf64 | |
172 | } else { | |
173 | rlim.Cur = uint64(rl.Cur) | |
174 | } | |
175 | ||
176 | if rl.Max == rlimInf32 { | |
177 | rlim.Max = rlimInf64 | |
178 | } else { | |
179 | rlim.Max = uint64(rl.Max) | |
180 | } | |
181 | return | |
182 | } | |
183 | ||
184 | //sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT | |
185 | ||
186 | func Setrlimit(resource int, rlim *Rlimit) (err error) { | |
187 | err = prlimit(0, resource, rlim, nil) | |
188 | if err != ENOSYS { | |
189 | return err | |
190 | } | |
191 | ||
192 | rl := rlimit32{} | |
193 | if rlim.Cur == rlimInf64 { | |
194 | rl.Cur = rlimInf32 | |
195 | } else if rlim.Cur < uint64(rlimInf32) { | |
196 | rl.Cur = uint32(rlim.Cur) | |
197 | } else { | |
198 | return EINVAL | |
199 | } | |
200 | if rlim.Max == rlimInf64 { | |
201 | rl.Max = rlimInf32 | |
202 | } else if rlim.Max < uint64(rlimInf32) { | |
203 | rl.Max = uint32(rlim.Max) | |
204 | } else { | |
205 | return EINVAL | |
206 | } | |
207 | ||
208 | return setrlimit(resource, &rl) | |
209 | } | |
210 | ||
211 | func (r *PtraceRegs) PC() uint64 { return r.Epc } | |
212 | ||
213 | func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc } | |
214 | ||
215 | func (iov *Iovec) SetLen(length int) { | |
216 | iov.Len = uint32(length) | |
217 | } | |
218 | ||
219 | func (msghdr *Msghdr) SetControllen(length int) { | |
220 | msghdr.Controllen = uint32(length) | |
221 | } | |
222 | ||
223 | func (cmsg *Cmsghdr) SetLen(length int) { | |
224 | cmsg.Len = uint32(length) | |
225 | } | |
226 | ||
227 | //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) | |
228 | ||
229 | func Poll(fds []PollFd, timeout int) (n int, err error) { | |
230 | if len(fds) == 0 { | |
231 | return poll(nil, 0, timeout) | |
232 | } | |
233 | return poll(&fds[0], len(fds), timeout) | |
234 | } |