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The no_mangle attribute is unsafe since Rust 2024

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Philipp Oppermann
2025-03-27 15:39:15 +01:00
parent 9345886d44
commit 9753695744
47 changed files with 149 additions and 149 deletions
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12
blog/content/edition-2/posts/04-testing/index.md
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@@ -102,7 +102,7 @@ To fix this, we first need to change the name of the generated function to somet
#![reexport_test_harness_main = "test_main"]
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
println!("Hello World{}", "!");
@@ -659,7 +659,7 @@ All integration tests are their own executables and completely separate from our
use core::panic::PanicInfo;
#[no_mangle] // don't mangle the name of this function
#[unsafe(no_mangle)] // don't mangle the name of this function
pub extern "C" fn _start() -> ! {
test_main();
@@ -741,7 +741,7 @@ pub fn test_panic_handler(info: &PanicInfo) -> ! {
/// Entry point for `cargo test`
#[cfg(test)]
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
test_main();
loop {}
@@ -807,7 +807,7 @@ Now we can update our `main.rs` to use the library:
use core::panic::PanicInfo;
use blog_os::println;
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
println!("Hello World{}", "!");
@@ -920,7 +920,7 @@ This test is still incomplete as it doesn't define a `_start` function or any of
#![test_runner(test_runner)]
#![reexport_test_harness_main = "test_main"]
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
test_main();
@@ -987,7 +987,7 @@ Now we vastly simplify our `should_panic` test by removing the `test_runner`-rel
use core::panic::PanicInfo;
use blog_os::{exit_qemu, serial_print, serial_println, QemuExitCode};
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
should_fail();
serial_println!("[test did not panic]");