vendor/golang.org/x/sys/unix/syscall_linux_amd64.go

   1 // Copyright 2009 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 amd64,linux
   6
   7 package unix
   8
   9 //sys   Dup2(oldfd int, newfd int) (err error)
  10 //sysnb EpollCreate(size int) (fd int, err error)
  11 //sys   EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
  12 //sys   Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
  13 //sys   Fchown(fd int, uid int, gid int) (err error)
  14 //sys   Fstat(fd int, stat *Stat_t) (err error)
  15 //sys   Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT
  16 //sys   Fstatfs(fd int, buf *Statfs_t) (err error)
  17 //sys   Ftruncate(fd int, length int64) (err error)
  18 //sysnb Getegid() (egid int)
  19 //sysnb Geteuid() (euid int)
  20 //sysnb Getgid() (gid int)
  21 //sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
  22 //sysnb Getuid() (uid int)
  23 //sysnb inotifyInit() (fd int, err error)
  24
  25 func InotifyInit() (fd int, err error) {
  26         // First try inotify_init1, because Android's seccomp policy blocks the latter.
  27         fd, err = InotifyInit1(0)
  28         if err == ENOSYS {
  29                 fd, err = inotifyInit()
  30         }
  31         return
  32 }
  33
  34 //sys   Ioperm(from int, num int, on int) (err error)
  35 //sys   Iopl(level int) (err error)
  36 //sys   Lchown(path string, uid int, gid int) (err error)
  37 //sys   Listen(s int, n int) (err error)
  38
  39 func Lstat(path string, stat *Stat_t) (err error) {
  40         return Fstatat(AT_FDCWD, path, stat, AT_SYMLINK_NOFOLLOW)
  41 }
  42
  43 //sys   Pause() (err error)
  44 //sys   Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
  45 //sys   Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
  46 //sys   Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error)
  47 //sys   Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
  48
  49 func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
  50         var ts *Timespec
  51         if timeout != nil {
  52                 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
  53         }
  54         return Pselect(nfd, r, w, e, ts, nil)
  55 }
  56
  57 //sys   sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
  58 //sys   Setfsgid(gid int) (err error)
  59 //sys   Setfsuid(uid int) (err error)
  60 //sysnb Setregid(rgid int, egid int) (err error)
  61 //sysnb Setresgid(rgid int, egid int, sgid int) (err error)
  62 //sysnb Setresuid(ruid int, euid int, suid int) (err error)
  63 //sysnb Setrlimit(resource int, rlim *Rlimit) (err error)
  64 //sysnb Setreuid(ruid int, euid int) (err error)
  65 //sys   Shutdown(fd int, how int) (err error)
  66 //sys   Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
  67
  68 func Stat(path string, stat *Stat_t) (err error) {
  69         // Use fstatat, because Android's seccomp policy blocks stat.
  70         return Fstatat(AT_FDCWD, path, stat, 0)
  71 }
  72
  73 //sys   Statfs(path string, buf *Statfs_t) (err error)
  74 //sys   SyncFileRange(fd int, off int64, n int64, flags int) (err error)
  75 //sys   Truncate(path string, length int64) (err error)
  76 //sys   Ustat(dev int, ubuf *Ustat_t) (err error)
  77 //sys   accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
  78 //sys   accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
  79 //sys   bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
  80 //sys   connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
  81 //sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
  82 //sysnb setgroups(n int, list *_Gid_t) (err error)
  83 //sys   getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
  84 //sys   setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
  85 //sysnb socket(domain int, typ int, proto int) (fd int, err error)
  86 //sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
  87 //sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
  88 //sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
  89 //sys   recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
  90 //sys   sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
  91 //sys   recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
  92 //sys   sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
  93 //sys   mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
  94
  95 //sys   futimesat(dirfd int, path string, times *[2]Timeval) (err error)
  96
  97 func Gettimeofday(tv *Timeval) (err error) {
  98         errno := gettimeofday(tv)
  99         if errno != 0 {
 100                 return errno
 101         }
 102         return nil
 103 }
 104
 105 func Time(t *Time_t) (tt Time_t, err error) {
 106         var tv Timeval
 107         errno := gettimeofday(&tv)
 108         if errno != 0 {
 109                 return 0, errno
 110         }
 111         if t != nil {
 112                 *t = Time_t(tv.Sec)
 113         }
 114         return Time_t(tv.Sec), nil
 115 }
 116
 117 //sys   Utime(path string, buf *Utimbuf) (err error)
 118 //sys   utimes(path string, times *[2]Timeval) (err error)
 119
 120 func setTimespec(sec, nsec int64) Timespec {
 121         return Timespec{Sec: sec, Nsec: nsec}
 122 }
 123
 124 func setTimeval(sec, usec int64) Timeval {
 125         return Timeval{Sec: sec, Usec: usec}
 126 }
 127
 128 //sysnb pipe(p *[2]_C_int) (err error)
 129
 130 func Pipe(p []int) (err error) {
 131         if len(p) != 2 {
 132                 return EINVAL
 133         }
 134         var pp [2]_C_int
 135         err = pipe(&pp)
 136         p[0] = int(pp[0])
 137         p[1] = int(pp[1])
 138         return
 139 }
 140
 141 //sysnb pipe2(p *[2]_C_int, flags int) (err error)
 142
 143 func Pipe2(p []int, flags int) (err error) {
 144         if len(p) != 2 {
 145                 return EINVAL
 146         }
 147         var pp [2]_C_int
 148         err = pipe2(&pp, flags)
 149         p[0] = int(pp[0])
 150         p[1] = int(pp[1])
 151         return
 152 }
 153
 154 func (r *PtraceRegs) PC() uint64 { return r.Rip }
 155
 156 func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc }
 157
 158 func (iov *Iovec) SetLen(length int) {
 159         iov.Len = uint64(length)
 160 }
 161
 162 func (msghdr *Msghdr) SetControllen(length int) {
 163         msghdr.Controllen = uint64(length)
 164 }
 165
 166 func (cmsg *Cmsghdr) SetLen(length int) {
 167         cmsg.Len = uint64(length)
 168 }
 169
 170 //sys   poll(fds *PollFd, nfds int, timeout int) (n int, err error)
 171
 172 func Poll(fds []PollFd, timeout int) (n int, err error) {
 173         if len(fds) == 0 {
 174                 return poll(nil, 0, timeout)
 175         }
 176         return poll(&fds[0], len(fds), timeout)
 177 }
 178
 179 //sys   kexecFileLoad(kernelFd int, initrdFd int, cmdlineLen int, cmdline string, flags int) (err error)
 180
 181 func KexecFileLoad(kernelFd int, initrdFd int, cmdline string, flags int) error {
 182         cmdlineLen := len(cmdline)
 183         if cmdlineLen > 0 {
 184                 // Account for the additional NULL byte added by
 185                 // BytePtrFromString in kexecFileLoad. The kexec_file_load
 186                 // syscall expects a NULL-terminated string.
 187                 cmdlineLen++
 188         }
 189         return kexecFileLoad(kernelFd, initrdFd, cmdlineLen, cmdline, flags)
 190 }