57 lines
1,014 B
Rust
57 lines
1,014 B
Rust
#![no_std]
|
|
#![no_main]
|
|
#![feature(panic_info_message)]
|
|
#![feature(alloc_error_handler)]
|
|
|
|
extern crate alloc;
|
|
|
|
#[macro_use]
|
|
extern crate bitflags;
|
|
|
|
#[macro_use]
|
|
mod console;
|
|
mod lang_items;
|
|
mod sbi;
|
|
mod syscall;
|
|
mod trap;
|
|
mod loader;
|
|
mod config;
|
|
mod task;
|
|
mod timer;
|
|
mod sync;
|
|
mod mm;
|
|
mod fs;
|
|
|
|
use core::arch::global_asm;
|
|
|
|
global_asm!(include_str!("entry.asm"));
|
|
global_asm!(include_str!("link_app.S"));
|
|
|
|
fn clear_bss() {
|
|
extern "C" {
|
|
fn sbss();
|
|
fn ebss();
|
|
}
|
|
unsafe {
|
|
core::slice::from_raw_parts_mut(
|
|
sbss as usize as *mut u8,
|
|
ebss as usize - sbss as usize,
|
|
).fill(0);
|
|
}
|
|
}
|
|
|
|
#[no_mangle]
|
|
pub fn rust_main() -> ! {
|
|
clear_bss();
|
|
println!("[kernel] Hello, world!");
|
|
mm::init();
|
|
mm::remap_test();
|
|
task::add_initproc();
|
|
println!("after initproc!");
|
|
trap::init();
|
|
trap::enable_timer_interrupt();
|
|
timer::set_next_trigger();
|
|
loader::list_apps();
|
|
task::run_tasks();
|
|
panic!("Unreachable in rust_main!");
|
|
}
|