Struct Class

pub struct Class(/* private fields */);

Available on AArch64 only.

Classifies different exception causes.

Note that the Arm documentation defines more variants than are defined in this type. This only includes exception classes that can be triggered from Aarch64 state and taken to EL1.

Implementations

impl Class

pub const Unknown: Self

Tried to execute an undefined/unsupported opcode, or for any other reason that does not fall under another exception class.

pub const Wait: Self

Trapped execution of a wait instruction (WFE/WFI).

pub const FPUAccess: Self

Trapped access to a FPU/vector register or instruction.

pub const IllegalState: Self

Tried to execute instructions after an illegal return.

pub const SupervisorCall: Self

Triggered a system call via the SVC instruction.

pub const SystemInstruction: Self

Trapped access to a system register or instruction.

pub const VectorAccess: Self

Trapped access to a vector register or instruction.

pub const PointerAuthFailure: Self

Improperly authenticated pointer detected. Requires FEAT_FPAC.

pub const InstructionAbortFromLower: Self

Instruction abort triggered at lower exception level.

pub const InstructionAbortFromCurrent: Self

Instruction abort triggered at current exception level.

pub const PCAlignment: Self

Program counter not properly aligned.

pub const DataAbortFromLower: Self

Data abort triggered at lower exception level.

pub const DataAbortFromCurrent: Self

Data abort triggered at current exception level.

pub const SPAlignment: Self

Stack pointer not properly aligned.

pub const FloatException: Self

Trapped floating point exception.

pub const SystemError: Self

System error (SError).

pub const BreakpointFromLower: Self

Breakpoint triggered at lower exception level.

pub const BreakpointFromCurrent: Self

Breakpoint triggered at current exception level.

pub const StepFromLower: Self

Software step at lower exception level.

pub const StepFromCurrent: Self

Software step at current exception level.

pub const WatchpointFromLower: Self

Watchpoint triggered at lower exception level.

pub const WatchpointFromCurrent: Self

Watchpoint triggered at current exception level.

pub const BreakpointInstruction: Self

Executed a BRK breakpoint instruction.

pub const fn name(self) -> Option<&'static str>

The name of the enum variant in code, if one is defined for this value.

An identical method is available through the CEnum trait, but this version is declared const (which is currently unstable on traits).

Trait Implementations

impl CEnum<u8> for Class

fn name(self) -> Option<&'static str>

The name of the enum variant in code, if one is defined for this value.

impl Clone for Class

fn clone(&self) -> Class

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Class

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Class

fn default() -> Class

Returns the “default value” for a type.

impl From<Class> for u8

fn from(enum_value: Class) -> Self

Converts to this type from the input type.

impl From<u8> for Class

fn from(repr: u8) -> Self

Converts to this type from the input type.

impl Hash for Class

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Class

fn cmp(&self, other: &Class) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Class

fn eq(&self, other: &Class) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Class

fn partial_cmp(&self, other: &Class) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Class

impl Eq for Class

impl StructuralPartialEq for Class