Remove reference to .bootloader-config section by renaming it to .note.bootloader-config

Author: jxors

api/src/lib.rs

@@ -113,7 +113,8 @@ macro_rules! entry_point {
     };
     ($path:path, config = $config:expr) => {
         const _: () = {
-            #[link_section = ".bootloader-config"]
+            #[used]
+            #[link_section = ".note.bootloader-config"]
             pub static __BOOTLOADER_CONFIG: [u8; $crate::BootloaderConfig::SERIALIZED_LEN] = {
                 // validate the type
                 let config: &$crate::BootloaderConfig = $config;
@@ -125,9 +126,6 @@ macro_rules! entry_point {
                 // validate the signature of the program entry point
                 let f: fn(&'static mut $crate::BootInfo) -> ! = $path;
 
-                // ensure that the config is used so that the linker keeps it
-                $crate::__force_use(&__BOOTLOADER_CONFIG);
-
                 f(boot_info)
             }
         };

common/src/lib.rs

@@ -103,7 +103,7 @@ impl<'a> Kernel<'a> {
         let kernel_elf = ElfFile::new(kernel_slice).unwrap();
         let config = {
             let section = kernel_elf
-                .find_section_by_name(".bootloader-config")
+                .find_section_by_name(".note.bootloader-config")
                 .expect("bootloader config section not found; kernel must be compiled against bootloader_api");
             let raw = section.raw_data(&kernel_elf);
             BootloaderConfig::deserialize(raw)