Create an init system.

1 files changed, 5 insertions, 48 deletions

diff --git a/src/main.rs b/src/main.rs
index a3e8071..146f601 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,56 +3,13 @@
 
 use core::panic::PanicInfo;
 
-#[link_section = ".on_reset"]
-#[no_mangle]
-pub static __RESET_VECTOR: fn() -> ! = on_reset;
+mod init;
 
+#[link_section = ".inits.999"]
 #[no_mangle]
-pub static mut DEADBEEF: u32 = 0xdeadbeef;
-pub static mut OTHER: u32 = 0;
-
-/** Load into the data segments */
-pub fn load_data_segments() -> () {
-    extern "C" {
-        static mut __data_load: u32;
-        static mut __data_store_start: u32;
-        static mut __data_store_end: u32;
-        static mut __bss_start: u32;
-        static mut __bss_end: u32;
-    }
-
-    unsafe {
-        let mut data_load_addr: *mut u32 = &mut __data_load;
-        let mut store_cursor: *mut u32 = &mut __data_store_start;
-        let data_store_end_addr: *mut u32 = &mut __data_store_end;
-
-        while store_cursor < data_store_end_addr {
-            store_cursor.write_volatile(*data_load_addr);
-            data_load_addr = data_load_addr.offset(1);
-            store_cursor = store_cursor.offset(1);
-        }
-
-        let bss_end: *mut u32 = &mut __bss_end;
-        let mut bss_cursor: *mut u32 = &mut __bss_start;
-
-        while bss_cursor < bss_end {
-            bss_cursor.write_volatile(0);
-            bss_cursor = bss_cursor.offset(1);
-        }
-    }
-
-    return;
-}
-
-pub fn on_reset() -> ! {
-    load_data_segments();
-
-    unsafe {
-        DEADBEEF += 100;
-        OTHER = DEADBEEF;
-    }
-
-    loop {}
+pub static __MAIN: fn() -> () = main;
+pub fn main() -> () {
+    loop {};
 }
 
 #[panic_handler]