| commit | e433306f9164e073f6b74e20063d008c37b867ed | [log] [tgz] |
|---|---|---|
| author | Lukasz Anforowicz <lukasza@google.com> | Mon Oct 17 14:47:53 2022 -0700 |
| committer | Copybara-Service <copybara-worker@google.com> | Mon Oct 17 14:48:29 2022 -0700 |
| tree | 9e9545a3d7cc7e73422a34abbe48853d2aac9fe5 | |
| parent | 79ac4e1f853a02fbdc80216d06c033b95063b84d [diff] |
Support bindings for `pub extern "C" fn foo() { ... }`.
This CL adds support for generating bindings for very simple Rust
functions:
- `extern "C"` is required (i.e. we don't have to worry about generating
Rust thunks just yet).
- Only the unit / `void` / `()` return type is supported
- No parameters are supported.
Still, after this CL it should be possible to start working on
end-to-end tests that actually verify that the generated bindings
build+link without any issues.
PiperOrigin-RevId: 481745367
Extremely experimental interop tooling for C++ and Rust.
Please don‘t use, this is an experiment and we don’t yet know where will it take us. There will be breaking changes without warning. Unfortunately, we can't take contributions at this point.
$ apt install clang lld bazel $ git clone git@github.com:google/crubit.git $ cd crubit $ bazel build --linkopt=-fuse-ld=/usr/bin/ld.lld //rs_bindings_from_cc:rs_bindings_from_cc_impl
$ git clone https://github.com/llvm/llvm-project $ cd llvm-project $ CC=clang CXX=clang++ cmake -S llvm -B build -DLLVM_ENABLE_PROJECTS='clang' -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=install $ cmake --build build -j $ # wait... $ cmake --install build $ cd ../crubit $ LLVM_INSTALL_PATH=../llvm-project/install bazel build //rs_bindings_from_cc:rs_bindings_from_cc_impl