mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-18 12:16:31 +00:00
把内核构建脚本单独独立成一个crate (#444)
This commit is contained in:
LoGin
GitHub
@ -12,7 +12,7 @@ crate-type = ["staticlib"]
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[workspace]
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members = [
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"crates/*",
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"src/libs/intertrait"
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"src/libs/intertrait"
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]
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[features]
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@ -50,8 +50,7 @@ kdepends = { path = "crates/kdepends" }
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# 构建时依赖项
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[build-dependencies]
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bindgen = "0.61.0"
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cc = { version = "1.0.83", features = ["parallel"] }
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kernel_build = { path = "../build-scripts/kernel_build" }
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[dependencies.lazy_static]
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version = "1.4.0"
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177
kernel/build.rs
177
kernel/build.rs
@ -1,178 +1,3 @@
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extern crate bindgen;
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extern crate cc;
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// use ::std::env;
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use std::path::PathBuf;
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use cc::Build;
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fn main() {
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// Tell cargo to look for shared libraries in the specified directory
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println!("cargo:rustc-link-search=src");
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println!("cargo:rerun-if-changed=src/include/bindings/wrapper.h");
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generate_bindings();
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CFilesBuilder::build();
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}
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fn generate_bindings() {
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// let crate_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
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let out_path = PathBuf::from(String::from("src/include/bindings/"));
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// The bindgen::Builder is the main entry point
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// to bindgen, and lets you build up options for
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// the resulting bindings.
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{
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let bindings = bindgen::Builder::default()
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.clang_arg("-I./src")
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.clang_arg("-I./src/include")
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.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
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// The input header we would like to generate
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// bindings for.
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.header("src/include/bindings/wrapper.h")
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.blocklist_file("src/include/bindings/bindings.h")
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.clang_arg("--target=x86_64-none-none")
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.clang_arg("-v")
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// 使用core，并将c语言的类型改为core::ffi，而不是使用std库。
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.use_core()
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.ctypes_prefix("::core::ffi")
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.generate_inline_functions(true)
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.raw_line("#![allow(dead_code)]")
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.raw_line("#![allow(non_upper_case_globals)]")
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.raw_line("#![allow(non_camel_case_types)]")
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// Tell cargo to invalidate the built crate whenever any of the
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// included header files changed.
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.parse_callbacks(Box::new(bindgen::CargoCallbacks))
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// Finish the builder and generate the bindings.
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.generate()
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// Unwrap the Result and panic on failure.
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.expect("Unable to generate bindings");
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bindings
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.write_to_file(out_path.join("bindings.rs"))
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.expect("Couldn't write bindings!");
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}
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}
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/// 构建项目的c文件
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struct CFilesBuilder;
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impl CFilesBuilder {
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fn build() {
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let mut c = cc::Build::new();
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Self::setup_global_flags(&mut c);
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Self::setup_defines(&mut c);
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Self::setup_global_include_dir(&mut c);
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Self::setup_files(&mut c);
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c.compile("dragonos_kernel_cfiles");
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}
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fn setup_global_flags(c: &mut Build) {
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c.flag("-mcmodel=large")
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.flag("-fno-builtin")
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.flag("-nostdlib")
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.flag("-fno-stack-protector")
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.flag("-fno-pie")
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.flag("-Wno-expansion-to-defined")
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.flag("-Wno-unused-parameter")
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.flag("-m64")
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.flag("-O1");
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}
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fn setup_defines(c: &mut Build) {
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if let Ok(k) = std::env::var("EMULATOR") {
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c.define("EMULATOR", Some(k.as_str()));
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} else {
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c.define("EMULATOR", "__NO_EMULATION__");
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}
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{
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#[cfg(target_arch = "x86_64")]
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c.define("__x86_64__", None);
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}
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}
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fn setup_global_include_dir(c: &mut Build) {
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c.include("src/include");
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c.include("src");
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c.include(".");
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#[cfg(target_arch = "x86_64")]
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c.include("src/arch/x86_64/include");
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}
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/// 设置需要编译的文件
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fn setup_files(c: &mut Build) {
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let mut files = Vec::new();
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#[cfg(target_arch = "x86_64")]
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Self::setup_files_x86_64(&mut files);
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Self::set_rerun_if_files_changed(&files);
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c.files(files.as_slice());
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}
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/// 设置x86_64架构下需要编译的C文件
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fn setup_files_x86_64(files: &mut Vec<PathBuf>) {
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files.push(PathBuf::from("src/arch/x86_64/driver/hpet.c"));
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// 获取`kernel/src/arch/x86_64/driver/apic`下的所有C文件
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files.append(&mut FileUtils::list_all_files(
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&PathBuf::from("src/arch/x86_64/driver/apic"),
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Some("c"),
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true,
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));
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}
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/// 设置Cargo对文件更改的监听
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fn set_rerun_if_files_changed(files: &Vec<PathBuf>) {
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for f in files {
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println!("cargo:rerun-if-changed={}", f.to_str().unwrap());
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}
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}
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}
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struct FileUtils;
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impl FileUtils {
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/// 列出指定目录下的所有文件
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///
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/// ## 参数
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///
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/// - `path` - 指定的目录
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/// - `ext_name` - 文件的扩展名，如果为None，则列出所有文件
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/// - `recursive` - 是否递归列出所有文件
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pub fn list_all_files(path: &PathBuf, ext_name: Option<&str>, recursive: bool) -> Vec<PathBuf> {
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let mut queue: Vec<PathBuf> = Vec::new();
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let mut result = Vec::new();
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queue.push(path.clone());
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while !queue.is_empty() {
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let path = queue.pop().unwrap();
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let d = std::fs::read_dir(path);
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if d.is_err() {
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continue;
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}
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let d = d.unwrap();
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d.for_each(|ent| {
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if let Ok(ent) = ent {
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if let Ok(file_type) = ent.file_type() {
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if file_type.is_file() {
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if let Some(e) = ext_name {
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if let Some(ext) = ent.path().extension() {
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if ext == e {
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result.push(ent.path());
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}
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}
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}
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} else if file_type.is_dir() && recursive {
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queue.push(ent.path());
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}
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}
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}
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});
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}
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return result;
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}
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kernel_build::run();
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}
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