Function kernel_stack_position

os/src/task/id.rs:64–68

Return (bottom, top) of a kernel stack in kernel space.

(kstack_id: usize)

/// Return (bottom, top) of a kernel stack in kernel space.
pub fn kernel_stack_position(kstack_id: usize) -> (usize, usize) {
    let top = TRAMPOLINE - kstack_id * (KERNEL_STACK_SIZE + PAGE_SIZE);
    let bottom = top - KERNEL_STACK_SIZE;
    (bottom, top)
}

pub struct KernelStack(pub usize);