mu_lib 0.1.5

XCENA mu Library
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49

use std::env;
use std::path::Path;
use std::path::PathBuf;

fn main() {
    let llvm_path = env::var("MU_LLVM_PATH")
        .unwrap_or("/usr/local/mu_library/mu_llvm/llvm-18.1".to_string());

    let mu_rb_hpp_path = env::var("MU_RB_HPP_PATH")
        .unwrap_or("/usr/local/mu_library/mu/include/mu/mu_rb.hpp".to_string());
    println!("cargo:rerun-if-changed={}", mu_rb_hpp_path);

    println!("cargo:rerun-if-changed=src");
    let linker_path = format!("{}/bin/ld.lld", llvm_path);
    println!("cargo:rustc-linker={}", linker_path);

    // Set linker script path
    let picolibc_newlib_path = format!("{}/picolibc-rv/newlib", llvm_path);
    println!("cargo:rustc-link-search={}", picolibc_newlib_path);
    let builtins_rv_path = format!("{}/builtins-rv", llvm_path);
    println!("cargo:rustc-link-search={}", builtins_rv_path);
    println!("cargo:rustc-link-lib=clang_rt.builtins-riscv64");

    let mu_lib_path = env::var("MU_LIB_PATH")
        .unwrap_or("/usr/local/mu_library/mu".to_string());    

    // Link mu_std library
    let mu_lib_dir = Path::new(&mu_lib_path).join("lib");
    println!("cargo:rustc-link-search={}", mu_lib_dir.display());
    println!("cargo:rustc-link-lib=mu_std");

    // Set target-feature
    println!("cargo:rustc-flag=-C target-feature=+xmetis");

    let bindings = bindgen::Builder::default()
        .enable_cxx_namespaces()
        .header(mu_rb_hpp_path)
        .clang_arg(format!("-I{}/picolibc-rv/include", llvm_path)) // stdint.h
        .clang_arg(format!("-I{}/libcxx-rv/include/c++/v1", llvm_path)) // cstdint
        .clang_arg(format!("-I{}/include", mu_lib_path))
        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
        .generate()
        .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());
    bindings
        .write_to_file(out_path.join("bindings.rs"))
        .expect("Couldn't write bindings!");
}