add debug exception for x86_64 and fix the break exception definition error in aarch64.

Signed-off-by: Godones <[email protected]>

Author: Godones

Cargo.lock

@@ -150,7 +150,7 @@ impl ExceptionInfo {
     /// Returns a generalized kind of this exception.
     pub fn kind(&self) -> ExceptionKind {
         match self.esr.read_as_enum(ESR_EL1::EC) {
-            Some(ESR_EL1::EC::Value::BreakpointLowerEL) => ExceptionKind::Breakpoint,
+            Some(ESR_EL1::EC::Value::Brk64) => ExceptionKind::Breakpoint,
             Some(ESR_EL1::EC::Value::IllegalExecutionState) => ExceptionKind::IllegalInstruction,
             Some(ESR_EL1::EC::Value::PCAlignmentFault)
             | Some(ESR_EL1::EC::Value::SPAlignmentFault) => ExceptionKind::Misaligned,

src/aarch64/uspace.rs

@@ -21,6 +21,9 @@ pub enum ReturnReason {
 /// A generalized kind for [`ExceptionInfo`].
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum ExceptionKind {
+    #[cfg(target_arch = "x86_64")]
+    /// A debug exception.
+    Debug,
     /// A breakpoint exception.
     Breakpoint,
     /// An illegal instruction exception.

src/uspace_common.rs

@@ -143,6 +143,7 @@ impl ExceptionInfo {
     /// Returns a generalized kind of this exception.
     pub fn kind(&self) -> ExceptionKind {
         match ExceptionVector::try_from(self.vector) {
+            Ok(ExceptionVector::Debug) => ExceptionKind::Debug,
             Ok(ExceptionVector::Breakpoint) => ExceptionKind::Breakpoint,
             Ok(ExceptionVector::InvalidOpcode) => ExceptionKind::IllegalInstruction,
             _ => ExceptionKind::Other,