Enum wasmtime_environ::isa::unwind::input::UnwindCode

pub enum UnwindCode<Reg> {
    SaveRegister {
        reg: Reg,
        stack_offset: u32,
    },
    RestoreRegister {
        reg: Reg,
    },
    StackAlloc {
        size: u32,
    },
    StackDealloc {
        size: u32,
    },
    SetFramePointer {
        reg: Reg,
    },
    RestoreFramePointer,
    RememberState,
    RestoreState,
    Aarch64SetPointerAuth {
        return_addresses: bool,
    },
}

Elementary operation in the unwind operations.

Variants

SaveRegister

Defines that a register is saved at the specified offset.

Fields of SaveRegister

reg: Reg

The saved register.

stack_offset: u32

The specified offset relative to the stack pointer.

RestoreRegister

Defines that a register is as defined before call.

Fields of RestoreRegister

reg: Reg

The restored register.

StackAlloc

The stack pointer was adjusted to allocate the stack.

Fields of StackAlloc

size: u32

Size to allocate.

StackDealloc

The stack pointer was adjusted to free the stack.

Fields of StackDealloc

size: u32

Size to deallocate.

SetFramePointer

The alternative register was assigned as frame pointer base.

Fields of SetFramePointer

reg: Reg

The specified register.

RestoreFramePointer

Restores a frame pointer base to default register.

RememberState

Saves the state.

RestoreState

Restores the state.

Aarch64SetPointerAuth

On aarch64 ARMv8.3+ devices, enables or disables pointer authentication.

Fields of Aarch64SetPointerAuth

return_addresses: bool

Whether return addresses (hold in LR) contain a pointer-authentication code.

Trait Implementations

impl<Reg> Clone for UnwindCode<Reg> where
    Reg: Clone, 

pub fn clone(&self) -> UnwindCode<Reg>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Reg> Debug for UnwindCode<Reg> where
    Reg: Debug, 

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

Formats the value using the given formatter.

impl<'de, Reg> Deserialize<'de> for UnwindCode<Reg> where
    Reg: Deserialize<'de>, 

pub fn deserialize<__D>(
    __deserializer: __D
) -> Result<UnwindCode<Reg>, <__D as Deserializer<'de>>::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl<Reg> PartialEq<UnwindCode<Reg>> for UnwindCode<Reg> where
    Reg: PartialEq<Reg>, 

pub fn eq(&self, other: &UnwindCode<Reg>) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &UnwindCode<Reg>) -> bool

This method tests for !=.

impl<Reg> Serialize for UnwindCode<Reg> where
    Reg: Serialize, 

pub fn serialize<__S>(
    &self,
    __serializer: __S
) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<Reg> Eq for UnwindCode<Reg> where
    Reg: Eq, 

impl<Reg> StructuralEq for UnwindCode<Reg>

impl<Reg> StructuralPartialEq for UnwindCode<Reg>