1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * A hack to export Rust symbols for loadable 3 * A hack to export Rust symbols for loadable modules without having to redo
4 * the entire `include/linux/export.h` logic i 4 * the entire `include/linux/export.h` logic in Rust.
5 * 5 *
6 * This requires the Rust's new/future `v0` ma 6 * This requires the Rust's new/future `v0` mangling scheme because the default
7 * one ("legacy") uses invalid characters for 7 * one ("legacy") uses invalid characters for C identifiers (thus we cannot use
8 * the `EXPORT_SYMBOL_*` macros). 8 * the `EXPORT_SYMBOL_*` macros).
9 * 9 *
10 * All symbols are exported as GPL-only to gua 10 * All symbols are exported as GPL-only to guarantee no GPL-only feature is
11 * accidentally exposed. 11 * accidentally exposed.
12 */ 12 */
13 13
14 #include <linux/export.h> 14 #include <linux/export.h>
15 15
16 #define EXPORT_SYMBOL_RUST_GPL(sym) extern int 16 #define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym)
17 17
18 #include "exports_core_generated.h" 18 #include "exports_core_generated.h"
19 #include "exports_alloc_generated.h" 19 #include "exports_alloc_generated.h"
20 #include "exports_helpers_generated.h" 20 #include "exports_helpers_generated.h"
21 #include "exports_bindings_generated.h" 21 #include "exports_bindings_generated.h"
22 #include "exports_kernel_generated.h" 22 #include "exports_kernel_generated.h"
23 23
24 // For modules using `rust/build_error.rs`. 24 // For modules using `rust/build_error.rs`.
25 #ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW 25 #ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW
26 EXPORT_SYMBOL_RUST_GPL(rust_build_error); 26 EXPORT_SYMBOL_RUST_GPL(rust_build_error);
27 #endif 27 #endif
28 28
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