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b/Cargo.toml new file mode 100644 index 0000000..3c9e9db --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,11 @@ +[package] +name = "mlkem-native-rs" +build = "build.rs" +version = "0.1.0" +edition = "2021" + +[dependencies] + +[build-dependencies] +bindgen = "0.71.1" +make-cmd = "0.1.0" diff --git a/build.rs b/build.rs new file mode 100644 index 0000000..adbef09 --- /dev/null +++ b/build.rs @@ -0,0 +1,57 @@ +use make_cmd; +use std::env; +use std::path::{Path, PathBuf}; + +fn main() { + // This is the directory where the `c` library is located. + let libdir_path = PathBuf::from("mlkem-native/mlkem") + // Canonicalize the path as `rustc-link-search` requires an absolute + // path. + .canonicalize() + .expect("cannot canonicalize path"); + + // This is the path to the `c` headers file. + let headers_path = libdir_path.join("mlkem_native.h"); + let headers_path_str = headers_path.to_str().expect("Path is not a valid string"); + + // Tell cargo to look for shared libraries in the specified directory + println!("cargo:rustc-link-search={}", libdir_path.to_str().unwrap()); + + // Tell cargo to tell rustc to link our `hello` library. Cargo will + // automatically know it must look for a `libhello.a` file. + println!("cargo:rustc-link-lib=mlkem-native/test/build"); + + let mlkem_native_path = PathBuf::from("mlkem-native") + .canonicalize() + .expect("cannot canonicalize path"); + if !make_cmd::make() + .current_dir(mlkem_native_path) + .output() + .expect("could not compile mlkem-native") + .status + .success() + { + panic!("could not compile mlkem-native"); + } + + // The bindgen::Builder is the main entry point + // to bindgen, and lets you build up options for + // the resulting bindings. + let bindings = bindgen::Builder::default() + // The input header we would like to generate + // bindings for. + .header(headers_path_str) + // Tell cargo to invalidate the built crate whenever any of the + // included header files changed. + .parse_callbacks(Box::new(bindgen::CargoCallbacks::new())) + // Finish the builder and generate the bindings. + .generate() + // Unwrap the Result and panic on failure. + .expect("Unable to generate bindings"); + + // Write the bindings to the $OUT_DIR/bindings.rs file. + let out_path = PathBuf::from(env::var("OUT_DIR").unwrap()).join("bindings.rs"); + bindings + .write_to_file(out_path) + .expect("Couldn't write bindings!"); +} diff --git a/mlkem-native b/mlkem-native new file mode 160000 index 0000000..2b943f9 --- /dev/null +++ b/mlkem-native @@ -0,0 +1 @@ +Subproject commit 2b943f92c6f78679690921a62e5c5855cc42035c diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..a38a13a --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,5 @@ +#![allow(non_upper_case_globals)] +#![allow(non_camel_case_types)] +#![allow(non_snake_case)] + +include!(concat!(env!("OUT_DIR"), "/bindings.rs"));