Function panic

os/src/lang_items.rs:7–22

(info: &PanicInfo)

#[panic_handler]
fn panic(info: &PanicInfo) -> ! {
    if let Some(location) = info.location() {
        println!(
            "[kernel] Panicked at {}:{} {}",
            location.file(),
            location.line(),
            info.message().unwrap()
        );
    } else {
        println!("[kernel] Panicked: {}", info.message().unwrap());
    }
    unsafe {
        backtrace();
    }
    shutdown(255)
}

unsafe fn backtrace() {
    let mut fp: usize;