Change io crate & add a small shell

src/main.rs

@@ -5,7 +5,7 @@
 #![no_std]
 #![no_main]
 // #![warn(clippy::pedantic)]
-#![allow(static_mut_refs)]
+#![allow(static_mut_refs, internal_features)]
 #![feature(
     riscv_ext_intrinsics,
     str_from_raw_parts,
@@ -13,14 +13,13 @@
     derive_const,
     const_cmp,
     const_trait_impl,
-    trait_alias
+    trait_alias,
+    prelude_import,
+    slice_index_methods
 )]
 
 use core::sync::atomic::AtomicBool;
-
-use alloc::boxed::Box;
 use embedded_alloc::LlffHeap as Heap;
-use log::info;
 
 use crate::{
     drivers::{keyboard::KBD_DRIVER, mouse::MOUSE_DRIVER},
@@ -28,12 +27,16 @@ use crate::{
     pci::scan_virtio_devices,
     riscv::enable_supervisor_interrupt,
     scheduler::{SCHEDULER, idle},
-    user::{proc2, test},
     vga::Vga,
     virtio::input::init_plic_pci,
     virtual_fs::init_file_system,
 };
 
+mod prelude;
+#[allow(unused_imports)]
+#[prelude_import]
+pub use prelude::*;
+
 extern crate alloc;
 mod boot;
 mod critical_section;
@@ -55,7 +58,6 @@ mod syscall;
 mod time;
 mod tty;
 mod uart;
-mod user;
 mod vga;
 mod virtio;
 mod virtual_console;
@@ -83,23 +85,6 @@ pub extern "C" fn supervisor_mode_entry() {
         SCHEDULER.lock().init();
     }
 
-    info!("Hello World !");
-    // unsafe { Vga.draw_string(10, 10, "Hello World !", Color::WHITE, Color::BLACK) };
-
-    // let binding = Box::leak(Box::new(["coucou".as_bytes()]));
-    SCHEDULER
-        .lock()
-        .create_process(Box::new(test), "proc1", 0, core::ptr::null());
-    SCHEDULER
-        .lock()
-        .create_process(Box::new(proc2), "proc2", 0, core::ptr::null());
-
-    SCHEDULER
-        .lock()
-        .create_process_from_file("/usr/bin/test_pic", 0, core::ptr::null());
-
-    enable_supervisor_interrupt();
-
     unsafe {
         let (pci_keyboard, pci_mouse) = scan_virtio_devices();
         let (pci_keyboard, pci_mouse) = (pci_keyboard.unwrap(), pci_mouse.unwrap());
@@ -121,5 +106,11 @@ pub extern "C" fn supervisor_mode_entry() {
         init_plic_pci(pci_keyboard.irq);
         init_plic_pci(pci_mouse.irq);
     }
+
+    SCHEDULER
+        .lock()
+        .create_process_from_file("/usr/bin/agetty", 0, core::ptr::null());
+    enable_supervisor_interrupt();
+
     idle(0, core::ptr::null());
 }