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Merge #700
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700: add usefull debug messages for all exceptions r=stlankes a=stlankes



Co-authored-by: Stefan Lankes <slankes@eonerc.rwth-aachen.de>
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@bors @stlankes
bors[bot] and stlankes authored Apr 3, 2023
2 parents 46f57fe + aea143e commit 7f7ef30
Showing 1 changed file with 115 additions and 0 deletions.
115 changes: 115 additions & 0 deletions src/arch/x86_64/kernel/interrupts.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,31 @@ pub fn install() {
set_general_handler!(idt, unhandle, 32..64);
set_general_handler!(idt, unknown, 64..);

idt.divide_error.set_handler_fn(divide_error_exception);
idt.debug.set_handler_fn(debug_exception);
idt.breakpoint.set_handler_fn(breakpoint_exception);
idt.overflow.set_handler_fn(overflow_exception);
idt.bound_range_exceeded
.set_handler_fn(bound_range_exceeded_exception);
idt.invalid_opcode.set_handler_fn(invalid_opcode_exception);
idt.device_not_available
.set_handler_fn(device_not_available_exception);
idt.invalid_tss.set_handler_fn(invalid_tss_exception);
idt.segment_not_present
.set_handler_fn(segment_not_present_exception);
idt.stack_segment_fault
.set_handler_fn(stack_segment_fault_exception);
idt.general_protection_fault
.set_handler_fn(general_protection_exception);
idt.page_fault.set_handler_fn(page_fault_handler);
idt.x87_floating_point
.set_handler_fn(floating_point_exception);
idt.alignment_check
.set_handler_fn(alignment_check_exception);
idt.simd_floating_point
.set_handler_fn(simd_floating_point_exception);
idt.virtualization.set_handler_fn(virtualization_exception);

unsafe {
idt.double_fault
.set_handler_fn(double_fault_exception)
Expand Down Expand Up @@ -78,11 +103,41 @@ fn unknown(_stack_frame: ExceptionStackFrame, index: u8, _error_code: Option<u64
apic::eoi();
}

extern "x86-interrupt" fn divide_error_exception(stack_frame: ExceptionStackFrame) {
error!("Divide Error (#DE) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn debug_exception(stack_frame: ExceptionStackFrame) {
error!("Debug (#DB) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn nmi_exception(stack_frame: ExceptionStackFrame) {
error!("Non-Maskable Interrupt (NMI) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn breakpoint_exception(stack_frame: ExceptionStackFrame) {
error!("Breakpoint (#BP) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn overflow_exception(stack_frame: ExceptionStackFrame) {
error!("Overflow (#OF) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn bound_range_exceeded_exception(stack_frame: ExceptionStackFrame) {
error!("BOUND Range Exceeded (#BR) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn invalid_opcode_exception(stack_frame: ExceptionStackFrame) {
error!("Invalid Opcode (#UD) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn device_not_available_exception(_stack_frame: ExceptionStackFrame) {
// We set the CR0_TASK_SWITCHED flag every time we switch to a task.
// This causes the "Device Not Available" Exception (int #7) to be thrown as soon as we use the FPU for the first time.
Expand All @@ -98,6 +153,46 @@ extern "x86-interrupt" fn device_not_available_exception(_stack_frame: Exception
core_scheduler().fpu_switch();
}

extern "x86-interrupt" fn invalid_tss_exception(stack_frame: ExceptionStackFrame, _code: u64) {
error!("Invalid TSS (#TS) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn segment_not_present_exception(
stack_frame: ExceptionStackFrame,
_code: u64,
) {
error!("Segment Not Present (#NP) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn stack_segment_fault_exception(
stack_frame: ExceptionStackFrame,
error_code: u64,
) {
error!(
"Stack Segment Fault (#SS) Exception: {:#?}, error {:#X}",
stack_frame, error_code
);
scheduler::abort();
}

extern "x86-interrupt" fn general_protection_exception(
stack_frame: ExceptionStackFrame,
error_code: u64,
) {
error!(
"General Protection (#GP) Exception: {:#?}, error {:#X}",
stack_frame, error_code
);
error!(
"fs = {:#X}, gs = {:#X}",
processor::readfs(),
processor::readgs()
);
scheduler::abort();
}

extern "x86-interrupt" fn double_fault_exception(
stack_frame: ExceptionStackFrame,
error_code: u64,
Expand All @@ -109,6 +204,16 @@ extern "x86-interrupt" fn double_fault_exception(
scheduler::abort()
}

extern "x86-interrupt" fn floating_point_exception(stack_frame: ExceptionStackFrame) {
error!("Floating-Point Error (#MF) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn alignment_check_exception(stack_frame: ExceptionStackFrame, _code: u64) {
error!("Alignment Check (#AC) Exception: {:#?}", stack_frame);
scheduler::abort();
}

pub extern "x86-interrupt" fn page_fault_handler(
stack_frame: ExceptionStackFrame,
error_code: PageFaultErrorCode,
Expand All @@ -127,6 +232,16 @@ extern "x86-interrupt" fn machine_check_exception(stack_frame: ExceptionStackFra
scheduler::abort()
}

extern "x86-interrupt" fn simd_floating_point_exception(stack_frame: ExceptionStackFrame) {
error!("SIMD Floating-Point (#XM) Exception: {:#?}", stack_frame);
scheduler::abort();
}

extern "x86-interrupt" fn virtualization_exception(stack_frame: ExceptionStackFrame) {
error!("Virtualization (#VE) Exception: {:#?}", stack_frame);
scheduler::abort();
}

static IRQ_NAMES: InterruptTicketMutex<HashMap<u32, &'static str, RandomState>> =
InterruptTicketMutex::new(HashMap::with_hasher(RandomState::with_seeds(0, 0, 0, 0)));

Expand Down

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