Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Miguel Ojeda <> | Subject | [PATCH 10/19] rust: export generated symbols | Date | Mon, 6 Dec 2021 15:03:04 +0100 |
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All symbols are reexported reusing the `EXPORT_SYMBOL_GPL` macro from C. The lists of symbols are generated on the fly.
There are three main sets of symbols to distinguish:
- The ones from the `core` and `alloc` crates (from the Rust standard library). The code is licensed as Apache/MIT.
- The ones from our abstractions in the `kernel` crate.
- The helpers (already exported since they are not generated).
We export everything as GPL. This ensures we do not mistakenly expose GPL kernel symbols/features as non-GPL, even indirectly.
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> --- rust/exports.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 rust/exports.c
diff --git a/rust/exports.c b/rust/exports.c new file mode 100644 index 000000000000..d7dff1b3b919 --- /dev/null +++ b/rust/exports.c @@ -0,0 +1,16 @@ +// 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 the 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). + +#include <linux/module.h> + +#define EXPORT_SYMBOL_RUST_GPL(sym) extern int sym; EXPORT_SYMBOL_GPL(sym); + +#include "exports_core_generated.h" +#include "exports_alloc_generated.h" +#include "exports_kernel_generated.h" -- 2.34.0
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