rust/macros/export.rs

Source file repositories/reference/linux-study-clean/rust/macros/export.rs

File Facts

System
Linux kernel
Corpus path
rust/macros/export.rs
Extension
.rs
Size
644 bytes
Lines
26
Domain
Rust Kernel Layer
Bucket
Rust API Membrane
Inferred role
Rust Kernel Layer: implementation source
Status
source implementation candidate

Why This File Exists

Rust-side wrappers and abstractions around kernel C APIs, ownership contracts, allocation, synchronization, and module integration.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0

use proc_macro2::TokenStream;
use quote::quote;

/// Please see [`crate::export`] for documentation.
pub(crate) fn export(f: syn::ItemFn) -> TokenStream {
    let name = &f.sig.ident;

    quote! {
        // This verifies that the function has the same signature as the declaration generated by
        // bindgen. It makes use of the fact that all branches of an if/else must have the same
        // type.
        const _: () = {
            if true {
                ::kernel::bindings::#name
            } else {
                #name
            };
        };

        #[no_mangle]
        #f
    }
}

Annotation

Implementation Notes