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use core::arch::asm;
/// arch specific registers
#[repr(C)]
#[repr(packed)]
#[derive(Debug)]
pub struct Context64 {
pub rbx: u64,
pub r12: u64,
pub r13: u64,
pub r14: u64,
pub r15: u64,
pub rbp: u64,
pub rsp: u64,
pub fpu: [u8; 108],
}
impl Default for Context64 {
fn default() -> Context64 {
Context64 {
rbx: 0,
r12: 0,
r13: 0,
r14: 0,
r15: 0,
rbp: 0,
rsp: 0,
fpu: [0; 108],
}
}
}
/// arch specific registers
#[repr(C)]
#[repr(packed)]
#[derive(Debug)]
pub struct TrapFrame {
pub r11: u64,
pub r10: u64,
pub r9: u64,
pub r8: u64,
pub rsi: u64,
pub rdi: u64,
pub rdx: u64,
pub rcx: u64,
pub rax: u64,
pub err_code: u64,
}
// this will get the current (kernel) stack pointer
#[inline]
pub fn get_sp() -> u64 {
let sp: u64;
unsafe {
asm!("mov {}, rsp", out(reg) sp);
}
return sp;
}
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