pub fn sys_getcwd(
_locked: &mut Locked<Unlocked>,
current_task: &CurrentTask,
buf: UserAddress,
size: usize,
) -> Result<usize, Errno>pub fn sys_getcwd(
_locked: &mut Locked<Unlocked>,
current_task: &CurrentTask,
buf: UserAddress,
size: usize,
) -> Result<usize, Errno>