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authorDennis Kobert <dennis@kobert.dev>2019-11-15 20:21:25 +0100
committerDennis Kobert <dennis@kobert.dev>2019-11-15 20:21:25 +0100
commit6590a5acfee33bae3ca0431c8af09768248fe405 (patch)
tree8aeb110464ac6b6f715118ea1d14edf3d04b83a4 /kernel/src/interrupts/exceptions.rs
parentc6e0e13db0ba0442018645a1184be50e1ec968e0 (diff)
Rename interrupt and exception handlers
Diffstat (limited to 'kernel/src/interrupts/exceptions.rs')
-rw-r--r--kernel/src/interrupts/exceptions.rs95
1 files changed, 0 insertions, 95 deletions
diff --git a/kernel/src/interrupts/exceptions.rs b/kernel/src/interrupts/exceptions.rs
deleted file mode 100644
index a3ecf9d..0000000
--- a/kernel/src/interrupts/exceptions.rs
+++ /dev/null
@@ -1,95 +0,0 @@
-use super::Interrupts;
-use crate::io::qemu;
-use x86_64::structures::idt::{InterruptStackFrame, PageFaultErrorCode};
-
-macro_rules! exception_default {
- ($stack_frame: expr) => {
- format_args!(
- "instruction addr: 0x{:08x}\nstack addr: 0x{:08x}\nflags: 0x{:x}",
- $stack_frame.instruction_pointer.as_u64(),
- $stack_frame.stack_pointer.as_u64(),
- $stack_frame.cpu_flags,
- )
- };
-}
-
-static mut expected_fault: Interrupts = Interrupts::None;
-
-pub unsafe fn expect_fault(int: Interrupts) {
- if expected_fault == Interrupts::None {
- expected_fault = int;
- }
-}
-
-fn get_expected_fault() -> Interrupts {
- unsafe { expected_fault }
-}
-
-pub extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut InterruptStackFrame) {
- match get_expected_fault() {
- Interrupts::Breakpoint => qemu::exit_qemu(qemu::QemuExitCode::Success),
- _ => panic!(
- "BREAKPOINT exception thrown\n\n{}",
- exception_default!(stack_frame)
- ),
- }
-}
-
-pub extern "x86-interrupt" fn general_protection_fault_handler(
- stack_frame: &mut InterruptStackFrame,
- error_code: u64,
-) {
- match get_expected_fault() {
- Interrupts::GeneralProtectionFault => qemu::exit_qemu(qemu::QemuExitCode::Success),
- _ => panic!(
- "GENERAL PROTECTION exception thrown\nerror code: {:x}\n{}",
- error_code,
- exception_default!(stack_frame)
- ),
- }
-}
-
-pub extern "x86-interrupt" fn page_fault_handler(
- stack_frame: &mut InterruptStackFrame,
- error_code: PageFaultErrorCode,
-) {
- use x86_64::registers::control::Cr2;
-
- match get_expected_fault() {
- Interrupts::PageFault => qemu::exit_qemu(qemu::QemuExitCode::Success),
- _ => panic!(
- "PAGE FAULT while accessing address: 0x{:08x}\nerror code: {:?}(0x{:x})\n{}",
- Cr2::read().as_u64(),
- error_code,
- error_code.bits(),
- exception_default!(stack_frame)
- ),
- }
-}
-
-pub extern "x86-interrupt" fn segment_not_present_handler(
- stack_frame: &mut InterruptStackFrame,
- error_code: u64,
-) {
- match get_expected_fault() {
- Interrupts::NotPresent => qemu::exit_qemu(qemu::QemuExitCode::Success),
- _ => panic!(
- "SEGMENT NOT PRESENT exception\nerror code: 0x{:x}\n{}",
- error_code,
- exception_default!(stack_frame)
- ),
- }
-}
-
-pub extern "x86-interrupt" fn double_fault_handler(
- stack_frame: &mut InterruptStackFrame,
- _error_code: u64, // code is always zero
-) {
- match get_expected_fault() {
- Interrupts::DoubleFault => qemu::exit_qemu(qemu::QemuExitCode::Success),
- _ => panic!(
- "DOUBLE FAULT\nthis is a fatal exception\n{}",
- exception_default!(stack_frame)
- ),
- }
-}