Tateisi/rcore-tutorial
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Auto link multiple applications in kernel.

Browse source
This commit is contained in:
Yifan Wu 2020-11-19 04:33:06 +08:00
parent 1943a50d0d
commit 220397e5a5
5 changed files with 64 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

17
os/src/main.rs
View file

@ -26,12 +26,19 @@ fn clear_bss() {
#[no_mangle]
pub fn rust_main() -> ! {
extern "C" {
fn app_0_start();
fn app_0_end();
};
clear_bss();
println!("Hello, world!");
println!("app_0 [{:#x}, {:#x})", app_0_start as usize, app_0_end as usize);
extern "C" {
fn _num_app();
}
let num_app_ptr = _num_app as usize as *const usize;
let num_app = unsafe { num_app_ptr.read_volatile() };
println!("num_app = {}", num_app);
let app_start: &[usize] = unsafe {
core::slice::from_raw_parts(num_app_ptr.add(1), num_app + 1)
};
for i in 0..num_app {
println!("app_{} [{:#x}, {:#x})", i, app_start[i], app_start[i + 1]);
}
panic!("Shutdown machine!");
}