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//go:build linux && (mips || mipsle)
6
7package unix
8
9import (
10 "syscall"
11 "unsafe"
12)
13
14func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
15
16//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
17//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
18//sys Fchown(fd int, uid int, gid int) (err error)
19//sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64
20//sysnb Getegid() (egid int)
21//sysnb Geteuid() (euid int)
22//sysnb Getgid() (gid int)
23//sysnb Getuid() (uid int)
24//sys Lchown(path string, uid int, gid int) (err error)
25//sys Listen(s int, n int) (err error)
26//sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
27//sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
28//sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
29//sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
30//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
31//sys setfsgid(gid int) (prev int, err error)
32//sys setfsuid(uid int) (prev int, err error)
33//sys Shutdown(fd int, how int) (err error)
34//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
35//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
36//sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
37//sys Ustat(dev int, ubuf *Ustat_t) (err error)
38//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
39//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
40//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
41//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
42//sysnb setgroups(n int, list *_Gid_t) (err error)
43//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
44//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
45//sysnb socket(domain int, typ int, proto int) (fd int, err error)
46//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
47//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
48//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
49//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
50//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
51//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
52//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
53
54//sys Ioperm(from int, num int, on int) (err error)
55//sys Iopl(level int) (err error)
56
57//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error)
58//sysnb Gettimeofday(tv *Timeval) (err error)
59//sysnb Time(t *Time_t) (tt Time_t, err error)
60//sys Utime(path string, buf *Utimbuf) (err error)
61//sys utimes(path string, times *[2]Timeval) (err error)
62
63//sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
64//sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
65//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
66//sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
67
68//sys Pause() (err error)
69
70func Fstatfs(fd int, buf *Statfs_t) (err error) {
71 _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
72 if e != 0 {
73 err = errnoErr(e)
74 }
75 return
76}
77
78func Statfs(path string, buf *Statfs_t) (err error) {
79 p, err := BytePtrFromString(path)
80 if err != nil {
81 return err
82 }
83 _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
84 if e != 0 {
85 err = errnoErr(e)
86 }
87 return
88}
89
90func Seek(fd int, offset int64, whence int) (off int64, err error) {
91 _, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
92 if e != 0 {
93 err = errnoErr(e)
94 }
95 return
96}
97
98func setTimespec(sec, nsec int64) Timespec {
99 return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
100}
101
102func setTimeval(sec, usec int64) Timeval {
103 return Timeval{Sec: int32(sec), Usec: int32(usec)}
104}
105
106//sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
107
108func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
109 page := uintptr(offset / 4096)
110 if offset != int64(page)*4096 {
111 return 0, EINVAL
112 }
113 return mmap2(addr, length, prot, flags, fd, page)
114}
115
116const rlimInf32 = ^uint32(0)
117const rlimInf64 = ^uint64(0)
118
119type rlimit32 struct {
120 Cur uint32
121 Max uint32
122}
123
124//sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
125
126func Getrlimit(resource int, rlim *Rlimit) (err error) {
127 err = Prlimit(0, resource, nil, rlim)
128 if err != ENOSYS {
129 return err
130 }
131
132 rl := rlimit32{}
133 err = getrlimit(resource, &rl)
134 if err != nil {
135 return
136 }
137
138 if rl.Cur == rlimInf32 {
139 rlim.Cur = rlimInf64
140 } else {
141 rlim.Cur = uint64(rl.Cur)
142 }
143
144 if rl.Max == rlimInf32 {
145 rlim.Max = rlimInf64
146 } else {
147 rlim.Max = uint64(rl.Max)
148 }
149 return
150}
151
152func (r *PtraceRegs) PC() uint64 { return r.Epc }
153
154func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc }
155
156func (iov *Iovec) SetLen(length int) {
157 iov.Len = uint32(length)
158}
159
160func (msghdr *Msghdr) SetControllen(length int) {
161 msghdr.Controllen = uint32(length)
162}
163
164func (msghdr *Msghdr) SetIovlen(length int) {
165 msghdr.Iovlen = uint32(length)
166}
167
168func (cmsg *Cmsghdr) SetLen(length int) {
169 cmsg.Len = uint32(length)
170}
171
172func (rsa *RawSockaddrNFCLLCP) SetServiceNameLen(length int) {
173 rsa.Service_name_len = uint32(length)
174}