rust/exports.c

Source file repositories/reference/linux-study-clean/rust/exports.c

File Facts

System
Linux kernel
Corpus path
rust/exports.c
Extension
.c
Size
903 bytes
Lines
30
Domain
Rust Kernel Layer
Bucket
Rust API Membrane
Inferred role
Rust Kernel Layer: exported/initcall integration point
Status
integration 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
/*
 * A hack to export Rust symbols for loadable modules without having to redo
 * the entire `include/linux/export.h` logic in Rust.
 *
 * This requires Rust's new/future `v0` mangling scheme because the default one
 * ("legacy") uses invalid characters for C identifiers (thus we cannot use the
 * `EXPORT_SYMBOL_*` macros).
 *
 * All symbols are exported as GPL-only to guarantee no GPL-only feature is
 * accidentally exposed.
 */

#include <linux/export.h>

#define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym)

#include "exports_core_generated.h"
#include "exports_bindings_generated.h"
#include "exports_kernel_generated.h"

#ifndef CONFIG_RUST_INLINE_HELPERS
#include "exports_helpers_generated.h"
#endif

// For modules using `rust/build_error.rs`.
#ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW
EXPORT_SYMBOL_RUST_GPL(rust_build_error);
#endif

Annotation

Implementation Notes