rust/exports.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * A hack to export Rust symbols for loadable modules without having to redo
   4  * the entire `include/linux/export.h` logic in Rust.
   5  *
   6  * This requires Rust's new/future `v0` mangling scheme because the default one
   7  * ("legacy") uses invalid characters for C identifiers (thus we cannot use the
   8  * `EXPORT_SYMBOL_*` macros).
   9  *
  10  * All symbols are exported as GPL-only to guarantee no GPL-only feature is
  11  * accidentally exposed.
  12  */
  13
  14 #include <linux/export.h>
  15
  16 #define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym)
  17
  18 #include "exports_core_generated.h"
  19 #include "exports_helpers_generated.h"
  20 #include "exports_bindings_generated.h"
  21 #include "exports_kernel_generated.h"
  22
  23 // For modules using `rust/build_error.rs`.
  24 #ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW
  25 EXPORT_SYMBOL_RUST_GPL(rust_build_error);
  26 #endif