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.
5 //go:build linux && (mips || mipsle)
12 _SYS_setgroups = SYS_SETGROUPS
14 _SYS_faccessat2 = 4439
17 func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err Errno)
19 //sys Dup2(oldfd int, newfd int) (err error)
20 //sys Fchown(fd int, uid int, gid int) (err error)
21 //sys fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64
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 Pause() (err error)
30 //sys pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
31 //sys pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
32 //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
33 //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT
34 //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64
35 //sys Setfsgid(gid int) (err error)
36 //sys Setfsuid(uid int) (err error)
37 //sys Shutdown(fd int, how int) (err error)
38 //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)
40 //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
41 //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64
42 //sys Ustat(dev int, ubuf *Ustat_t) (err error)
43 //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
44 //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
45 //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
46 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
47 //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
48 //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
49 //sysnb socket(domain int, typ int, proto int) (fd int, err error)
50 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
51 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
52 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
53 //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
54 //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
55 //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
56 //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
58 //sysnb InotifyInit() (fd int, err error)
59 //sys Ioperm(from int, num int, on int) (err error)
60 //sys Iopl(level int) (err error)
62 //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error)
63 //sysnb Gettimeofday(tv *Timeval) (err error)
64 //sysnb Time(t *Time_t) (tt Time_t, err error)
65 //sys Utime(path string, buf *Utimbuf) (err error)
66 //sys utimes(path string, times *[2]Timeval) (err error)
68 //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64
69 //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64
70 //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64
71 //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
73 func Fstatfs(fd int, buf *Statfs_t) (err error) {
74 _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
81 func Statfs(path string, buf *Statfs_t) (err error) {
82 p, err := BytePtrFromString(path)
86 _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf)))
93 func Seek(fd int, offset int64, whence int) (off int64, err error) {
94 _, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0)
101 func setTimespec(sec, nsec int64) Timespec {
102 return Timespec{Sec: int32(sec), Nsec: int32(nsec)}
105 func setTimeval(sec, usec int64) Timeval {
106 return Timeval{Sec: int32(sec), Usec: int32(usec)}
109 //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error)
111 func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) {
112 page := uintptr(offset / 4096)
113 if offset != int64(page)*4096 {
116 return mmap2(addr, length, prot, flags, fd, page)
119 const rlimInf32 = ^uint32(0)
120 const rlimInf64 = ^uint64(0)
122 type rlimit32 struct {
127 //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT
129 func Getrlimit(resource int, rlim *Rlimit) (err error) {
130 err = prlimit(0, resource, nil, rlim)
136 err = getrlimit(resource, &rl)
141 if rl.Cur == rlimInf32 {
144 rlim.Cur = uint64(rl.Cur)
147 if rl.Max == rlimInf32 {
150 rlim.Max = uint64(rl.Max)
155 //sysnb setrlimit1(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT
157 func setrlimit(resource int, rlim *Rlimit) (err error) {
158 err = prlimit(0, resource, rlim, nil)
164 if rlim.Cur == rlimInf64 {
166 } else if rlim.Cur < uint64(rlimInf32) {
167 rl.Cur = uint32(rlim.Cur)
171 if rlim.Max == rlimInf64 {
173 } else if rlim.Max < uint64(rlimInf32) {
174 rl.Max = uint32(rlim.Max)
179 return setrlimit1(resource, &rl)
183 func rawSetrlimit(resource int, rlim *Rlimit) Errno {
184 _, _, errno := RawSyscall6(SYS_PRLIMIT64, 0, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0, 0, 0)
190 if rlim.Cur == rlimInf64 {
192 } else if rlim.Cur < uint64(rlimInf32) {
193 rl.Cur = uint32(rlim.Cur)
197 if rlim.Max == rlimInf64 {
199 } else if rlim.Max < uint64(rlimInf32) {
200 rl.Max = uint32(rlim.Max)
205 _, _, errno = RawSyscall(SYS_SETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
209 func (r *PtraceRegs) PC() uint64 { return uint64(r.Regs[64]) }
211 func (r *PtraceRegs) SetPC(pc uint64) { r.Regs[64] = uint32(pc) }
213 func (iov *Iovec) SetLen(length int) {
214 iov.Len = uint32(length)
217 func (msghdr *Msghdr) SetControllen(length int) {
218 msghdr.Controllen = uint32(length)
221 func (cmsg *Cmsghdr) SetLen(length int) {
222 cmsg.Len = uint32(length)