Struct ArmStack 

pub struct ArmStack {
    top: NonNull<u32>,
    sp: StackPtr,
    size: NonZero<usize>,
}

A stack on arm is 4 byte aligned and grows downwards.

Fields

top: NonNull<u32>

The top of the stack (highest address). Safety: NonNull can safely be covariant over u32.

sp: StackPtr

The current offset from the top of the stack

size: NonZero<usize>

The size of the stack

Implementations

impl ArmStack

fn does_fit(&self, size: usize) -> bool

fn is_call_aligned(sp: StackPtr) -> bool

fn in_bounds(&self, sp: *mut u32) -> Option<usize>

unsafe fn push(sp: &mut NonNull<u32>, value: u32)

fn push_irq_ret_fn( &mut self, f: extern "C" fn(), fin: Option<extern "C" fn() -> !>, ) -> Result<()>

Trait Implementations

impl Clone for ArmStack

fn clone(&self) -> ArmStack

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArmStack

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

Formats the value using the given formatter.

impl Stacklike for ArmStack

type ElemSize = u32

type StackPtr = StackPtr

unsafe fn new(desc: Descriptor) -> Result<Self>

where Self: Sized,

fn create_sp(&self, ptr: *mut c_void) -> Result<StackPtr>

fn set_sp(&mut self, sp: StackPtr)

fn sp(&self) -> *mut c_void

impl Copy for ArmStack