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|
//! # Kernel Code
//!
//! ## Initializes the peripherals
//! - UART
//! - Allocators
#![doc(
html_logo_url = "https://raw.githubusercontent.com/rust-embedded/wg/master/assets/logo/ewg-logo-blue-white-on-transparent.png"
)]
#![allow(non_snake_case)]
#![allow(clippy::upper_case_acronyms, dead_code)]
#![feature(format_args_nl)]
#![feature(panic_info_message)]
#![feature(trait_alias)]
#![feature(exclusive_range_pattern)]
#![feature(default_alloc_error_handler)]
#![feature(optimize_attribute)]
#![no_main]
#![no_std]
extern crate alloc;
pub use alloc::boxed::Box;
pub use alloc::format;
pub use alloc::string::String;
mod console;
mod cpu;
mod draw;
mod mem;
mod panic_wait;
mod print;
mod sync;
mod uart;
mod util;
use crate::console::console;
use crate::mem::alloc::allocator;
/// # Initialization Code
///
/// Initializes
/// - Allocators
/// - Box
/// - String
/// - format!
/// - UART
/// - print!
/// - println!
/// - vprint!
/// - vprintln!
///
/// After initialization, jump to
/// the regular main.
unsafe fn kernel_init() -> ! {
console().init().unwrap();
allocator().init().unwrap();
kernel_main()
}
/// # Post-initialization
///
/// TODO: Figure out what to do here
fn kernel_main() -> ! {
#[cfg(not(feature = "verbose"))]
{
#[cfg(feature = "flag")]
{
draw::draw_ukraine_flag();
println!();
draw::draw_american_flag();
println!();
}
println!(
"\x1b[91mInitialized\x1b[0m \x1b[92m{}\x1b[0m \x1b[93mv{}\x1b[0m",
env!("CARGO_PKG_NAME"),
env!("CARGO_PKG_VERSION")
);
println!(
"\x1b[94mAuthors:\x1b[0m \x1b[95m{}\x1b[0m",
env!("CARGO_PKG_AUTHORS")
);
use crate::console::interface::Statistics;
println!(
"Characters written to UART: \x1b[91m{}\x1b[0m",
console().chars_written()
);
}
#[cfg(feature = "verbose")]
run_verbose();
loop {}
}
fn run_verbose() {
println!("U8: {:?}", mem::alloc::U8_GRAND_ALLOC);
{
let mut s = String::new();
for _ in 0..128 {
s += "TEST";
}
assert_eq!(s.capacity(), 512);
}
{
let s = format!("{:X}", 0xCAFEBABE as u32);
assert_eq!(s, "CAFEBABE");
assert_eq!(s.capacity(), 8);
}
{
let a: Box<u8> = Box::new(1);
assert_eq!(*a, 1);
println!("{}", a);
}
{
let a: Box<u8> = Box::new(2);
let b: Box<u8> = Box::new(3);
let c: Box<u8> = Box::new(4);
assert_eq!(*a, 2);
assert_eq!(*b, 3);
assert_eq!(*c, 4);
println!("{} {} {}", a, b, c);
}
{
let a: Box<u8> = Box::new(5);
let b: Box<u8> = Box::new(6);
let c: Box<u8> = Box::new(7);
assert_eq!(*a, 5);
assert_eq!(*b, 6);
assert_eq!(*c, 7);
println!("{} {} {}", a, b, c);
}
use crate::console::interface::Statistics;
println!(
"Characters written to UART: \x1b[91m{}\x1b[0m",
console().chars_written()
);
}
|
