Function linux_syscalls::raw_syscall4

pub unsafe fn raw_syscall4(
    sysno: Sysno,
    arg0: usize,
    arg1: usize,
    arg2: usize,
    arg3: usize
) -> usize

Make a raw system call with 4 arguments.

Returns a raw usize, doesn’t not check for errors.

Safety

A system call is unsafe by definition. It’s the caller’s responsibility to ensure safety.