blog_os/src/main.rs

#![cfg_attr(not(test), no_std)]
#![cfg_attr(not(test), no_main)]
#![cfg_attr(test, allow(unused_imports))]

use blog_os::println;
use core::panic::PanicInfo;

#[cfg(not(test))]
#[no_mangle]
pub extern "C" fn _start() -> ! {
    println!("Hello World{}", "!");

    blog_os::interrupts::init_idt();

    fn stack_overflow() {
        stack_overflow(); // for each recursion, the return address is pushed
    }

    // trigger a stack overflow
    stack_overflow();

    println!("It did not crash!");
    loop {}
}

/// This function is called on panic.
#[cfg(not(test))]
#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
    println!("{}", info);
    loop {}
}