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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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blog/content/edition-2/posts/01-freestanding-rust-binary/index.zh-TW.md
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@@ -216,7 +216,7 @@ fn panic(_info: &PanicInfo) -> ! {
您可能會注意到我們移除了 `main` 函式，原因是因為既然沒有了底層的執行時系統呼叫，那麼 `main` 也沒必要存在。我們要重寫作業系統的入口點，定義為 `_start` 函式：
```rust
#[no_mangle]
#[unsafe(no_mangle)]
pub extern "C" fn _start() -> ! {
loop {}
}
@@ -465,7 +465,7 @@ rustflags = ["-C", "link-args=-e __start -static -nostartfiles"]
use core::panic::PanicInfo;
#[no_mangle] // 不修飾函式名稱
#[unsafe(no_mangle)] // 不修飾函式名稱
pub extern "C" fn _start() -> ! {
// 因為連結器預設會尋找 `_start` 函式名稱
// 所以這個函式就是入口點