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Double fault

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This commit is contained in:
greg 2019-07-11 02:51:00 -07:00
parent 596bb35697
commit 4c0ce08bc8
2 changed files with 7 additions and 3 deletions
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5
src/interrupts.rs
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@ -6,6 +6,7 @@ lazy_static! {
static ref IDT: InterruptDescriptorTable = { static ref IDT: InterruptDescriptorTable = {
let mut idt = InterruptDescriptorTable::new(); let mut idt = InterruptDescriptorTable::new();
idt.breakpoint.set_handler_fn(breakpoint_handler); idt.breakpoint.set_handler_fn(breakpoint_handler);
idt.double_fault.set_handler_fn(double_fault_handler);
idt idt
}; };
} }
@ -18,3 +19,7 @@ extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut InterruptStackFra
println!("EXCEPTION - BREAKPOINT\n{:#?}", stack_frame); println!("EXCEPTION - BREAKPOINT\n{:#?}", stack_frame);
} }
extern "x86-interrupt" fn double_fault_handler(stack_frame: &mut InterruptStackFrame, code: u64) {
panic!("EXCEPTION - DOUBLE FAULT (code {})\n{:#?}", code, stack_frame);
}

5
src/main.rs
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@ -22,15 +22,14 @@ pub fn init() {
pub extern "C" fn _start() -> ! { pub extern "C" fn _start() -> ! {
init(); init();
x86_64::instructions::interrupts::int3(); //x86_64::instructions::interrupts::int3();
unsafe { unsafe {
asm!("mov dx, 0; div dx" ::: "ax", "dx" : "volatile", "intel") *(0xf0f0b8b8 as *mut u64) = 10;
} }
println!("Gamarjoba, munde: {}", 1); println!("Gamarjoba, munde: {}", 1);
println!("Gamarjoba, munde: {}", 2); println!("Gamarjoba, munde: {}", 2);
panic!("A bad thing happened");
loop {} loop {}
} }