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2024: Add unsafe attribute differences #1579

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2024: Add unsafe attribute differences #1579

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2024: Add unsafe attribute differences
ehuss Aug 19, 2024
435d57e
Use lowercase "differences"
ehuss Aug 20, 2024
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6 changes: 6 additions & 0 deletions src/abi.md
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Expand Up @@ -74,6 +74,8 @@ with the same name (or with a well-known symbol), leading to undefined behavior.
extern "C" fn foo() {}
```

> **Edition differences**: Before the 2024 edition it is allowed to use the `no_mangle` attribute without the `unsafe` qualification.

## The `link_section` attribute

The *`link_section` attribute* specifies the section of the object file that a
Expand All @@ -90,6 +92,8 @@ of memory not expecting them, such as mutable data into read-only areas.
pub static VAR1: u32 = 1;
```

> **Edition differences**: Before the 2024 edition it is allowed to use the `link_section` attribute without the `unsafe` qualification.

## The `export_name` attribute

The *`export_name` attribute* specifies the name of the symbol that will be
Expand All @@ -105,6 +109,8 @@ behavior.
pub fn name_in_rust() { }
```

> **Edition differences**: Before the 2024 edition it is allowed to use the `export_name` attribute without the `unsafe` qualification.

[_MetaNameValueStr_]: attributes.md#meta-item-attribute-syntax
[`static` items]: items/static-items.md
[attribute]: attributes.md
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