(SYS_UMASK, uintptr(mask), 0, 0)  oldmask = int(r0)  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Uname(buf *Utsname) (err error) {  _, _, e0 := RawSyscall(SYS_UNAME, uintptr(unsafe.Pointer(buf)), 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Unmount(target string, flags int) (err error) {  var _p0 *byte  _p0, err = BytePtrFromString(target)  if err != nil {   return  }  _, _, e0 := Syscall(SYS_UMOUNT0, uintptr(unsafe.Pointer(_p0)), uintptr(flags), 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Unshare(flags int) (err error) {  _, _, e0 := Syscall(SYS_UNSHARE, uintptr(flags), 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func write(fd int, p []byte) (n int, err error) {  var _p0 unsafe.Pointer  if len(p) > 0 {   _p0 = unsafe.Pointer(&p[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  r0, _, e0 := Syscall(SYS_WRITE, uintptr(fd), uintptr(_p0), uintptr(len(p)))  n = int(r0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func exitThread(code int) (err error) {  _, _, e0 := Syscall(SYS_EXIT, uintptr(code), 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func readlen(fd int, p *byte, np int) (n int, err error) {  r0, _, e0 := Syscall(SYS_READ, uintptr(fd), uintptr(unsafe.Pointer(p)), uintptr(np))  n = int(r0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func writelen(fd int, p *byte, np int) (n int, err error) {  r0, _, e0 := Syscall(SYS_WRITE, uintptr(fd), uintptr(unsafe.Pointer(p)), uintptr(np))  n = int(r0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func munmap(addr uintptr, length uintptr) (err error) {  _, _, e0 := Syscall(SYS_MUNMAP, uintptr(addr), uintptr(length), 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Madvise(b []byte, advice int) (err error) {  var _p0 unsafe.Pointer  if len(b) > 0 {   _p0 = unsafe.Pointer(&b[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  _, _, e0 := Syscall(SYS_MADVISE, uintptr(_p0), uintptr(len(b)), uintptr(advice))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Mprotect(b []byte, prot int) (err error) {  var _p0 unsafe.Pointer  if len(b) > 0 {   _p0 = unsafe.Pointer(&b[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  _, _, e0 := Syscall(SYS_MPROTECT, uintptr(_p0), uintptr(len(b)), uintptr(prot))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Mlock(b []byte) (err error) {  var _p0 unsafe.Pointer  if len(b) > 0 {   _p0 = unsafe.Pointer(&b[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  _, _, e0 := Syscall(SYS_MLOCK, uintptr(_p0), uintptr(len(b)), 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Mlockall(flags int) (err error) {  _, _, e0 := Syscall(SYS_MLOCKALL, uintptr(flags), 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Msync(b []byte, flags int) (err error) {  var _p0 unsafe.Pointer  if len(b) > 0 {   _p0 = unsafe.Pointer(&b[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  _, _, e0 := Syscall(SYS_MSYNC, uintptr(_p0), uintptr(len(b)), uintptr(flags))  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Munlock(b []byte) (err error) {  var _p0 unsafe.Pointer  if len(b) > 0 {   _p0 = unsafe.Pointer(&b[0])  } else {   _p0 = unsafe.Pointer(&_zero)  }  _, _, e0 := Syscall(SYS_MUNLOCK, uintptr(_p0), uintptr(len(b)), 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func Munlockall() (err error) {  _, _, e0 := Syscall(SYS_MUNLOCKALL, 0, 0, 0)  if e0 != 0 {   err = errnoErr(e0)  }  return }  // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT  func fa