Function sys_kill 

pub fn sys_kill(
    current_task: &CurrentTask,
    pid: pid_t,
    unchecked_signal: UncheckedSignal,
) -> Result<(), Errno>

The kill syscall can be used to send any signal to any process group or process.

Args

• pid: Specifies the target process or process group. See kill(2) for details.
• unchecked_signal: The signal to send.

Returns

Ok(()) on success. Otherwise, returns an Errno with the error code.