blob: a939ff8f21978ff0c816b30a51e08e0e046bbad5 [file] [log] [blame]
Don Newton98fd8812019-09-23 15:15:02 -04001// 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
8package unix
9
10import (
11 "syscall"
12 "unsafe"
13)
14
15func 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
31//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
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
79func 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
87func 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
99func 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
107func setTimespec(sec, nsec int64) Timespec {
108 return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
109}
110
111func 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
117func 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
130func 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
140func 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
148const rlimInf32 = ^uint32(0)
149const rlimInf64 = ^uint64(0)
150
151type rlimit32 struct {
152 Cur uint32
153 Max uint32
154}
155
156//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
157
158func 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
186func 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
211func (r *PtraceRegs) PC() uint64 { return r.Epc }
212
213func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc }
214
215func (iov *Iovec) SetLen(length int) {
216 iov.Len = uint32(length)
217}
218
219func (msghdr *Msghdr) SetControllen(length int) {
220 msghdr.Controllen = uint32(length)
221}
222
Don Newton7577f072020-01-06 12:41:11 -0500223func (msghdr *Msghdr) SetIovlen(length int) {
224 msghdr.Iovlen = uint32(length)
225}
226
Don Newton98fd8812019-09-23 15:15:02 -0400227func (cmsg *Cmsghdr) SetLen(length int) {
228 cmsg.Len = uint32(length)
229}
230
231//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error)
232
233func Poll(fds []PollFd, timeout int) (n int, err error) {
234 if len(fds) == 0 {
235 return poll(nil, 0, timeout)
236 }
237 return poll(&fds[0], len(fds), timeout)
238}