Struct Stack 

pub struct Stack {
    pub base: usize,
    pub size: usize,
    pub sp: AtomicUsize,
    pub phys_frame: AtomicU64,
    pub phys_page_count: AtomicUsize,
}

Stack information

Fields

base: usize

Base address (lowest address, virtual)

size: usize

Size in bytes

sp: AtomicUsize

Current stack pointer

phys_frame: AtomicU64

Physical frame number of the contiguous allocation from the frame allocator. Stored so cleanup can free the frames without walking page tables. Zero means no physical frames are owned by this Stack (e.g., user stacks whose frames are managed by the VAS).

phys_page_count: AtomicUsize

Number of physical pages owned by this stack (for free_frames).

Implementations

impl Stack

pub fn new(base: usize, size: usize) -> Self

Create a new stack

pub fn top(&self) -> usize

Get stack top (initial SP)

pub fn contains(&self, addr: usize) -> bool

Check if address is within stack

pub fn get_sp(&self) -> usize

Get current stack pointer

pub fn set_sp(&self, sp: usize)

Set stack pointer

Trait Implementations

impl Debug for Stack

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

Formats the value using the given formatter.