1 extern crate bindgen;
2 // use ::std::env;
3 
4 use std::path::PathBuf;
5 
main()6 fn main() {
7     // Tell cargo to look for shared libraries in the specified directory
8     println!("cargo:rustc-link-search=src");
9     println!("cargo:rerun-if-changed=src/include/bindings/wrapper.h");
10 
11     // let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
12     let out_path = PathBuf::from(String::from("src/include/bindings/"));
13 
14     // The bindgen::Builder is the main entry point
15     // to bindgen, and lets you build up options for
16     // the resulting bindings.
17     {
18         let bindings = bindgen::Builder::default()
19             .clang_arg("-I./src")
20             .clang_arg("-I./src/include")
21             .clang_arg("-I./src/arch/x86_64/include") // todo: 当引入多种架构之后,需要修改这里,对于不同的架构编译时,include不同的路径
22             // The input header we would like to generate
23             // bindings for.
24             .header("src/include/bindings/wrapper.h")
25             .blocklist_file("src/include/bindings/bindings.h")
26             .clang_arg("--target=x86_64-none-none")
27             .clang_arg("-v")
28             // 使用core,并将c语言的类型改为core::ffi,而不是使用std库。
29             .use_core()
30             .ctypes_prefix("::core::ffi")
31             .generate_inline_functions(true)
32             .raw_line("#![allow(dead_code)]")
33             .raw_line("#![allow(non_upper_case_globals)]")
34             .raw_line("#![allow(non_camel_case_types)]")
35             // Tell cargo to invalidate the built crate whenever any of the
36             // included header files changed.
37             .parse_callbacks(Box::new(bindgen::CargoCallbacks))
38             // Finish the builder and generate the bindings.
39             .generate()
40             // Unwrap the Result and panic on failure.
41             .expect("Unable to generate bindings");
42 
43         bindings
44             .write_to_file(out_path.join("bindings.rs"))
45             .expect("Couldn't write bindings!");
46     }
47 }
48