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Add a double fault handler (and trigger it)

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This commit is contained in:
Philipp Oppermann
2017-01-02 15:35:06 +01:00
parent 9090bf0c06
commit dfa1cc48c9
2 changed files with 8 additions and 2 deletions
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6
src/interrupts/mod.rs
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@@ -93,6 +93,7 @@ lazy_static! {
idt.set_handler(0, handler!(divide_by_zero_handler)); idt.set_handler(0, handler!(divide_by_zero_handler));
idt.set_handler(3, handler!(breakpoint_handler)); idt.set_handler(3, handler!(breakpoint_handler));
idt.set_handler(6, handler!(invalid_opcode_handler)); idt.set_handler(6, handler!(invalid_opcode_handler));
idt.set_handler(8, handler_with_error_code!(double_fault_handler));
idt.set_handler(14, handler_with_error_code!(page_fault_handler)); idt.set_handler(14, handler_with_error_code!(page_fault_handler));
idt idt
@@ -150,3 +151,8 @@ extern "C" fn page_fault_handler(stack_frame: &ExceptionStackFrame, error_code:
stack_frame); stack_frame);
loop {} loop {}
} }
extern "C" fn double_fault_handler(stack_frame: &ExceptionStackFrame, _error_code: u64) {
println!("\nEXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
loop {}
}

4
src/lib.rs
View File

@@ -56,8 +56,8 @@ pub extern "C" fn rust_main(multiboot_information_address: usize) {
// initialize our IDT // initialize our IDT
interrupts::init(); interrupts::init();
// trigger a breakpoint exception // trigger a debug exception
unsafe { int!(3) }; unsafe { int!(1) };
println!("It did not crash!"); println!("It did not crash!");
loop {} loop {}