fix: static var

Author: ZR233

platforms/axplat-aarch64-dyn/src/init.rs

@@ -32,6 +32,7 @@ impl InitIf for InitIfImpl {
     /// * Current monotonic time and wall time can be obtained.
     fn init_early(cpu_id: usize, arg: usize) {
         axcpu::init::init_trap();
+        crate::mem::setup();
         console::setup_early();
     }
 

platforms/axplat-aarch64-dyn/src/lib.rs

@@ -18,14 +18,14 @@ mod config {
     axconfig_macros::include_configs!(path_env = "AX_CONFIG_PATH", fallback = "axconfig.toml");
 }
 
+// Use `.data` section to prevent being cleaned by `clean_bss`.
+#[unsafe(link_section = ".data")]
 static BOOT_INFO: Once<BootInfo> = Once::new();
 
 #[pie_boot::entry]
 fn main(args: &BootInfo) -> ! {
     BOOT_INFO.call_once(move || args.clone());
 
-    mem::setup();
-
     axplat::call_main(
         args.cpu_id,
         args.fdt.map(|p| p.as_ptr() as usize).unwrap_or_default(),