Add the rust std as a custom sysroot

src/user.rs

@@ -6,14 +6,15 @@ use core::time::Duration;
 
 use shared::syscall::{sleep, write_string_temp};
 
-pub fn test() {
+pub fn test(_argc: isize, _argv: *const *const u8) {
     loop {
+        // write_string_temp(str::from_utf8(_args[0]).unwrap());
         write_string_temp("test");
         sleep(Duration::new(2, 0));
     }
 }
 
-pub fn proc2() {
+pub fn proc2(_argc: isize, _argv: *const *const u8) {
     loop {
         write_string_temp("proc2");
         sleep(Duration::new(3, 0));