| // Copyright 2016 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build linux |
| // +build mips mipsle |
| |
| package unix |
| |
| import ( |
| "syscall" |
| "unsafe" |
| ) |
| |
| func Syscall9(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno) |
| |
| //sys Dup2(oldfd int, newfd int) (err error) |
| //sysnb EpollCreate(size int) (fd int, err error) |
| //sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) |
| //sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64 |
| //sys Fchown(fd int, uid int, gid int) (err error) |
| //sys Ftruncate(fd int, length int64) (err error) = SYS_FTRUNCATE64 |
| //sysnb Getegid() (egid int) |
| //sysnb Geteuid() (euid int) |
| //sysnb Getgid() (gid int) |
| //sysnb Getuid() (uid int) |
| //sys Lchown(path string, uid int, gid int) (err error) |
| //sys Listen(s int, n int) (err error) |
| //sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 |
| //sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 |
| //sys Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) |
| //sys Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) = SYS__NEWSELECT |
| //sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) = SYS_SENDFILE64 |
| //sys Setfsgid(gid int) (err error) |
| //sys Setfsuid(uid int) (err error) |
| //sysnb Setregid(rgid int, egid int) (err error) |
| //sysnb Setresgid(rgid int, egid int, sgid int) (err error) |
| //sysnb Setresuid(ruid int, euid int, suid int) (err error) |
| //sysnb Setreuid(ruid int, euid int) (err error) |
| //sys Shutdown(fd int, how int) (err error) |
| //sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error) |
| //sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) |
| //sys Truncate(path string, length int64) (err error) = SYS_TRUNCATE64 |
| //sys Ustat(dev int, ubuf *Ustat_t) (err error) |
| //sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) |
| //sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) |
| //sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
| //sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) |
| //sysnb getgroups(n int, list *_Gid_t) (nn int, err error) |
| //sysnb setgroups(n int, list *_Gid_t) (err error) |
| //sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) |
| //sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) |
| //sysnb socket(domain int, typ int, proto int) (fd int, err error) |
| //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) |
| //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
| //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) |
| //sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) |
| //sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) |
| //sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) |
| //sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) |
| |
| //sysnb InotifyInit() (fd int, err error) |
| //sys Ioperm(from int, num int, on int) (err error) |
| //sys Iopl(level int) (err error) |
| |
| //sys futimesat(dirfd int, path string, times *[2]Timeval) (err error) |
| //sysnb Gettimeofday(tv *Timeval) (err error) |
| //sysnb Time(t *Time_t) (tt Time_t, err error) |
| //sys Utime(path string, buf *Utimbuf) (err error) |
| //sys utimes(path string, times *[2]Timeval) (err error) |
| |
| //sys Lstat(path string, stat *Stat_t) (err error) = SYS_LSTAT64 |
| //sys Fstat(fd int, stat *Stat_t) (err error) = SYS_FSTAT64 |
| //sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_FSTATAT64 |
| //sys Stat(path string, stat *Stat_t) (err error) = SYS_STAT64 |
| |
| //sys Pause() (err error) |
| |
| func Fstatfs(fd int, buf *Statfs_t) (err error) { |
| _, _, e := Syscall(SYS_FSTATFS64, uintptr(fd), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) |
| if e != 0 { |
| err = errnoErr(e) |
| } |
| return |
| } |
| |
| func Statfs(path string, buf *Statfs_t) (err error) { |
| p, err := BytePtrFromString(path) |
| if err != nil { |
| return err |
| } |
| _, _, e := Syscall(SYS_STATFS64, uintptr(unsafe.Pointer(p)), unsafe.Sizeof(*buf), uintptr(unsafe.Pointer(buf))) |
| if e != 0 { |
| err = errnoErr(e) |
| } |
| return |
| } |
| |
| func Seek(fd int, offset int64, whence int) (off int64, err error) { |
| _, _, e := Syscall6(SYS__LLSEEK, uintptr(fd), uintptr(offset>>32), uintptr(offset), uintptr(unsafe.Pointer(&off)), uintptr(whence), 0) |
| if e != 0 { |
| err = errnoErr(e) |
| } |
| return |
| } |
| |
| func setTimespec(sec, nsec int64) Timespec { |
| return Timespec{Sec: int32(sec), Nsec: int32(nsec)} |
| } |
| |
| func setTimeval(sec, usec int64) Timeval { |
| return Timeval{Sec: int32(sec), Usec: int32(usec)} |
| } |
| |
| //sysnb pipe2(p *[2]_C_int, flags int) (err error) |
| |
| func Pipe2(p []int, flags int) (err error) { |
| if len(p) != 2 { |
| return EINVAL |
| } |
| var pp [2]_C_int |
| err = pipe2(&pp, flags) |
| p[0] = int(pp[0]) |
| p[1] = int(pp[1]) |
| return |
| } |
| |
| //sysnb pipe() (p1 int, p2 int, err error) |
| |
| func Pipe(p []int) (err error) { |
| if len(p) != 2 { |
| return EINVAL |
| } |
| p[0], p[1], err = pipe() |
| return |
| } |
| |
| //sys mmap2(addr uintptr, length uintptr, prot int, flags int, fd int, pageOffset uintptr) (xaddr uintptr, err error) |
| |
| func mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) { |
| page := uintptr(offset / 4096) |
| if offset != int64(page)*4096 { |
| return 0, EINVAL |
| } |
| return mmap2(addr, length, prot, flags, fd, page) |
| } |
| |
| const rlimInf32 = ^uint32(0) |
| const rlimInf64 = ^uint64(0) |
| |
| type rlimit32 struct { |
| Cur uint32 |
| Max uint32 |
| } |
| |
| //sysnb getrlimit(resource int, rlim *rlimit32) (err error) = SYS_GETRLIMIT |
| |
| func Getrlimit(resource int, rlim *Rlimit) (err error) { |
| err = prlimit(0, resource, nil, rlim) |
| if err != ENOSYS { |
| return err |
| } |
| |
| rl := rlimit32{} |
| err = getrlimit(resource, &rl) |
| if err != nil { |
| return |
| } |
| |
| if rl.Cur == rlimInf32 { |
| rlim.Cur = rlimInf64 |
| } else { |
| rlim.Cur = uint64(rl.Cur) |
| } |
| |
| if rl.Max == rlimInf32 { |
| rlim.Max = rlimInf64 |
| } else { |
| rlim.Max = uint64(rl.Max) |
| } |
| return |
| } |
| |
| //sysnb setrlimit(resource int, rlim *rlimit32) (err error) = SYS_SETRLIMIT |
| |
| func Setrlimit(resource int, rlim *Rlimit) (err error) { |
| err = prlimit(0, resource, rlim, nil) |
| if err != ENOSYS { |
| return err |
| } |
| |
| rl := rlimit32{} |
| if rlim.Cur == rlimInf64 { |
| rl.Cur = rlimInf32 |
| } else if rlim.Cur < uint64(rlimInf32) { |
| rl.Cur = uint32(rlim.Cur) |
| } else { |
| return EINVAL |
| } |
| if rlim.Max == rlimInf64 { |
| rl.Max = rlimInf32 |
| } else if rlim.Max < uint64(rlimInf32) { |
| rl.Max = uint32(rlim.Max) |
| } else { |
| return EINVAL |
| } |
| |
| return setrlimit(resource, &rl) |
| } |
| |
| func (r *PtraceRegs) PC() uint64 { return r.Epc } |
| |
| func (r *PtraceRegs) SetPC(pc uint64) { r.Epc = pc } |
| |
| func (iov *Iovec) SetLen(length int) { |
| iov.Len = uint32(length) |
| } |
| |
| func (msghdr *Msghdr) SetControllen(length int) { |
| msghdr.Controllen = uint32(length) |
| } |
| |
| func (cmsg *Cmsghdr) SetLen(length int) { |
| cmsg.Len = uint32(length) |
| } |
| |
| //sys poll(fds *PollFd, nfds int, timeout int) (n int, err error) |
| |
| func Poll(fds []PollFd, timeout int) (n int, err error) { |
| if len(fds) == 0 { |
| return poll(nil, 0, timeout) |
| } |
| return poll(&fds[0], len(fds), timeout) |
| } |