Struct os::trap::TrapContext

#[repr(C)]
pub struct TrapContext {
    pub x: [usize; 32],
    pub sstatus: Sstatus,
    pub sepc: usize,
    pub kernel_satp: usize,
    pub kernel_sp: usize,
    pub trap_handler: usize,
}

trap context structure containing sstatus, sepc and registers

Fields

x: [usize; 32]

general regs[0..31]

sstatus: Sstatus

CSR sstatus

sepc: usize

CSR sepc

kernel_satp: usize

Addr of Page Table

kernel_sp: usize

kernel stack

trap_handler: usize

Addr of trap_handler function

Implementations

impl TrapContext

pub fn set_sp(&mut self, sp: usize)

set stack pointer to x_2 reg (sp)

pub fn app_init_context(
    entry: usize,
    sp: usize,
    kernel_satp: usize,
    kernel_sp: usize,
    trap_handler: usize
) -> Self

init app context