Struct os::task::context::TaskContext

#[repr(C)]
pub struct TaskContext {
    ra: usize,
    sp: usize,
    s: [usize; 12],
}

Task Context

Fields

ra: usize

return address ( e.g. __restore ) of __switch ASM function

sp: usize

kernel stack pointer of app

s: [usize; 12]

callee saved registers: s 0..11

Implementations

impl TaskContext

pub fn zero_init() -> Self

init task context

pub fn goto_restore(kstack_ptr: usize) -> Self

set task context {__restore ASM funciton, kernel stack, s_0..12 }

Trait Implementations

impl Clone for TaskContext

fn clone(&self) -> TaskContext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for TaskContext