test: fix integration-test build

Author: phip1611

integration-test/bins/multiboot2_chainloader/src/main.rs

@@ -1,6 +1,5 @@
 #![no_main]
 #![no_std]
-#![feature(error_in_core)]
 
 mod loader;
 mod multiboot;
@@ -16,7 +15,7 @@ core::arch::global_asm!(include_str!("start.S"), options(att_syntax));
 
 /// Entry into the Rust code from assembly using the x86 SystemV calling
 /// convention.
-#[no_mangle]
+#[unsafe(no_mangle)]
 fn rust_entry(multiboot_magic: u32, multiboot_hdr: *const u32) -> ! {
     init_environment();
     let x = 0.12 + 0.56;

integration-test/bins/multiboot2_chainloader/src/multiboot.rs

@@ -25,7 +25,7 @@ struct Mem;
 impl MemoryManagement for Mem {
     unsafe fn paddr_to_slice(&self, addr: PAddr, size: usize) -> Option<&'static [u8]> {
         let ptr = addr as *const u64 as *const u8;
-        Some(slice::from_raw_parts(ptr, size))
+        Some(unsafe { slice::from_raw_parts(ptr, size) })
     }
 
     // If you only want to read fields, you can simply return `None`.

integration-test/bins/multiboot2_payload/src/main.rs

@@ -1,6 +1,5 @@
 #![no_main]
 #![no_std]
-#![feature(error_in_core)]
 
 extern crate alloc;
 
@@ -16,7 +15,7 @@ use util::{init_environment, qemu_exit_success};
 mod verify;
 
 /// Entry into the Rust code from assembly.
-#[no_mangle]
+#[unsafe(no_mangle)]
 fn rust_entry(multiboot2_magic: u32, multiboot2_hdr: u32) -> ! {
     main(multiboot2_magic, multiboot2_hdr).expect("Should run multiboot2 integration test");
     log::info!("Integration test finished successfully");

multiboot2-header/README.md

@@ -75,7 +75,7 @@ include it like this:
 
 ```
 #[used]
-#[no_mangle]
+#[unsafe(no_mangle)]
 #[link_section = ".text.multiboot2_header"]
 static MULTIBOOT2_HDR: [u8; 64] = *include_bytes!("mb2_hdr_dump.bin");
 ```