func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func fcntl(fd int, cmd int, arg int) (val int, err error) {
	r0, _, e1 := syscall(abi.FuncPCABI0(libc_fcntl_trampoline), uintptr(fd), uintptr(cmd), uintptr(arg))
	val = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_fcntl_trampoline()

//go:cgo_import_dynamic libc_fcntl fcntl "libc.so"

func sched_getaffinity(pid, len uintptr, buf *byte) int32
func osyield()

//go:nosplit
func osyield_no_g() {
	osyield()
}

func pipe2(flags int32) (r, w int32, errno int32)

//go:nosplit
func fcntl(fd, cmd, arg int32) (ret int32, errno int32) {
	r, _, err := syscall.Syscall6(syscall.SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg), 0, 0, 0)
	return int32(r), int32(err)
}

const (
	_si_max_size    = 128

//sys	Fchdir(fd int) (err error)
//sys	Fchmod(fd int, mode uint32) (err error)
//sys	Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
//sys	fcntl(fd int, cmd int, arg int) (val int, err error)
//sys	Fdatasync(fd int) (err error)
//sys	Flock(fd int, how int) (err error)
//sys	Fsync(fd int) (err error)