kernel/initcall/
early.rs

1use crate::early_println;
2
3
4#[macro_export]
5macro_rules! early_initcall {
6    ($func:ident) => {
7        #[unsafe(link_section = ".initcall.early")]
8        #[used(linker)]
9        static __EARLY_INITCALL__ : fn() = $func;
10    };
11}
12
13unsafe extern "C" {
14    static __INITCALL_EARLY_START: usize;
15    static __INITCALL_EARLY_END: usize;
16}
17
18pub fn early_initcall_call() {
19    unsafe {
20        let size = core::mem::size_of::<fn()>();
21
22        early_println!("Running early initcalls... ");
23        let mut func = &__INITCALL_EARLY_START as *const usize as usize;
24        let end = &__INITCALL_EARLY_END as *const usize as usize;
25        let num = (end - func) / size;
26
27        for i in 0..num {
28            early_println!("Early initcalls {} / {}", i + 1, num);
29            let initcall = *(func as *const fn());
30            initcall();
31            func += size;
32        }
33    }
34}
kernel/initcall/early.rs

kernel/initcall/
early.rs
