blog_os/src/interrupts.rs

33 lines
789 B
Rust

use lazy_static::lazy_static;
use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};
use crate::println;
#[cfg(test)]
use crate::{serial_print, serial_println};
lazy_static!{
static ref IDT: InterruptDescriptorTable = {
let mut idt = InterruptDescriptorTable::new();
idt.breakpoint.set_handler_fn(breakpoint_handler);
idt
};
}
pub fn init_idt() {
IDT.load();
}
extern "x86-interrupt" fn breakpoint_handler(
stack_frame: &mut InterruptStackFrame
) {
println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
}
#[test_case]
fn test_breakpoint_exception() {
serial_print!("test_breakpoint_exception...");
// invoke a breakpoint exception
x86_64::instructions::interrupts::int3();
serial_println!("[ok]");
}