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