Struct os::task::TaskContext

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

task context structure containing some registers

Fields

ra: usize

Ret position after task switching

sp: usize

Stack pointer

s: [usize; 12]

s0-11 register, callee saved

Implementations

impl TaskContext

pub fn zero_init() -> Self

Create a new empty task context

pub fn goto_trap_return(kstack_ptr: usize) -> Self

Create a new task context with a trap return addr and a kernel stack pointer