Struct solana_rbpf::call_frames::CallFrames

pub struct CallFrames { /* fields omitted */ }

When BPF calls a function other then a syscall it expect the new function to be called in its own frame. CallFrames manages call frames

Implementations

impl CallFrames

pub fn new(depth: usize, frame_size: usize) -> Self

New call frame, depth indicates maximum call depth

pub fn get_region(&self) -> &MemoryRegion

Get stack memory region

pub fn get_frame_pointers(&self) -> Vec<u64>

Get the vm address of the beginning of each stack frame

pub fn get_stack_top(&self) -> u64

Get the address of a frame’s top of stack

pub fn get_frame_index(&self) -> usize

Get current call frame index, 0 is the root frame

pub fn get_max_frame_index(&self) -> usize

Get max frame index

pub fn push<E: UserDefinedError>(
    &mut self,
    saved_reg: &[u64],
    return_ptr: usize
) -> Result<u64, EbpfError<E>>

Push a frame

pub fn pop<E: UserDefinedError>(
    &mut self
) -> Result<([u64; 4], u64, usize), EbpfError<E>>

Pop a frame

Trait Implementations

impl Clone for CallFrames

fn clone(&self) -> CallFrames

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CallFrames

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

Formats the value using the given formatter.