xref: /openbmc/linux/rust/exports.c (revision 7ae9fb1b7ecbb5d85d07857943f677fd1a559b18)
18fcbf024SMiguel Ojeda // SPDX-License-Identifier: GPL-2.0
28fcbf024SMiguel Ojeda /*
38fcbf024SMiguel Ojeda  * A hack to export Rust symbols for loadable modules without having to redo
48fcbf024SMiguel Ojeda  * the entire `include/linux/export.h` logic in Rust.
58fcbf024SMiguel Ojeda  *
68fcbf024SMiguel Ojeda  * This requires the Rust's new/future `v0` mangling scheme because the default
78fcbf024SMiguel Ojeda  * one ("legacy") uses invalid characters for C identifiers (thus we cannot use
88fcbf024SMiguel Ojeda  * the `EXPORT_SYMBOL_*` macros).
98fcbf024SMiguel Ojeda  *
108fcbf024SMiguel Ojeda  * All symbols are exported as GPL-only to guarantee no GPL-only feature is
118fcbf024SMiguel Ojeda  * accidentally exposed.
128fcbf024SMiguel Ojeda  */
138fcbf024SMiguel Ojeda 
148fcbf024SMiguel Ojeda #include <linux/module.h>
158fcbf024SMiguel Ojeda 
168fcbf024SMiguel Ojeda #define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym)
178fcbf024SMiguel Ojeda 
188fcbf024SMiguel Ojeda #include "exports_core_generated.h"
198fcbf024SMiguel Ojeda #include "exports_alloc_generated.h"
208fcbf024SMiguel Ojeda #include "exports_bindings_generated.h"
218fcbf024SMiguel Ojeda #include "exports_kernel_generated.h"
22*ecaa6ddfSGary Guo 
23*ecaa6ddfSGary Guo // For modules using `rust/build_error.rs`.
24*ecaa6ddfSGary Guo #ifdef CONFIG_RUST_BUILD_ASSERT_ALLOW
25*ecaa6ddfSGary Guo EXPORT_SYMBOL_RUST_GPL(rust_build_error);
26*ecaa6ddfSGary Guo #endif
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