michaelkuc6/blog_os
1
0
Fork 0
mirror of https://github.com/phil-opp/blog_os.git synced 2025-12-17 06:47:49 +00:00
Code Issues Projects Releases Wiki Activity

Begin code for upcoming post

Browse Source
This commit is contained in:
Philipp Oppermann
2016-07-16 17:19:45 +02:00
parent 95c0452bcb
commit 2e0f4f9161
2 changed files with 80 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
src/interrupts/mod.rs
View File

@@ -5,6 +5,9 @@ lazy_static! {
let mut idt = idt::Idt::new();
idt.set_handler(0, divide_by_zero_handler);
//idt.set_handler(8, double_fault_handler);
//idt.set_handler(13, general_protection_fault_handler);
idt.set_handler(14, page_fault_handler);
idt
};
@@ -16,7 +19,76 @@ pub fn init() {
use vga_buffer::print_error;
#[naked]
extern "C" fn divide_by_zero_handler() -> ! {
unsafe { print_error(format_args!("EXCEPTION: DIVIDE BY ZERO")) };
unsafe {
asm!(/* load excepiton fram pointer and call main_handler*/);
}
::core::intrinsics::unreachable();
extern "C" fn main_handler(stack_frame: *const ExceptionStackFrameErrorCode) -> ! {
unsafe {
print_error(format_args!("EXCEPTION: DIVIDE BY ZERO\n{:#?}", *stack_frame));
}
loop {}
}
}
extern "C" fn divide_by_zero_handler() -> ! {
let stack_frame: *const ExceptionStackFrame;
unsafe {
asm!("mov $0, rsp" : "=r"(stack_frame) ::: "intel");
print_error(format_args!("EXCEPTION: DIVIDE BY ZERO\n{:#?}", *stack_frame));
};
loop {}
}
extern "C" fn double_fault_handler() -> ! {
unsafe { print_error(format_args!("EXCEPTION: DOUBLE FAULT")) };
loop {}
}
extern "C" fn general_protection_fault_handler() -> ! {
loop {}
unsafe { print_error(format_args!("EXCEPTION: GENERAL PROTECTION FAULT")) };
}
#[derive(Debug)]
#[repr(C)]
struct ExceptionStackFrame {
instruction_pointer: u64,
code_segment: u64,
cpu_flags: u64,
stack_pointer: u64,
stack_segment: u64,
}
#[derive(Debug)]
#[repr(C)]
struct ExceptionStackFrameErrorCode {
error_code: u64,
instruction_pointer: u64,
code_segment: u64,
cpu_flags: u64,
stack_pointer: u64,
stack_segment: u64,
}
#[naked]
extern "C" fn page_fault_handler() -> ! {
unsafe {
asm!("
mov rdi, rsp
call $0
" :: "i"(handler as extern "C" fn(*const ExceptionStackFrameErrorCode) -> !) :: "intel");
}
loop{}
extern "C" fn handler(stack_frame: *const ExceptionStackFrameErrorCode) -> ! {
unsafe {
print_error(format_args!("EXCEPTION: PAGE FAULT\n stack frame: {:#?}", *stack_frame));
}
loop {}
}
}