120 lines
3.7 KiB
Rust
120 lines
3.7 KiB
Rust
#![allow(clippy::unwrap_used)] // the build script can panic
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use std::{env, path::Path, process::Command};
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use toml::Table;
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fn parse_kconfig(arch: &str) -> Option<()> {
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println!("cargo:rerun-if-changed=config.toml");
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assert!(Path::new("config.toml.example").try_exists().unwrap());
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if !Path::new("config.toml").try_exists().unwrap() {
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std::fs::copy("config.toml.example", "config.toml").unwrap();
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}
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let config_str = std::fs::read_to_string("config.toml").unwrap();
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let root: Table = toml::from_str(&config_str).unwrap();
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let altfeatures = root
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.get("arch")?
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.as_table()
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.unwrap()
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.get(arch)?
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.as_table()
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.unwrap()
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.get("features")?
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.as_table()
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.unwrap();
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#[expect(clippy::format_collect)] // TODO: remove once version is bumped
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let features_list = altfeatures
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.keys()
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.map(|feat| format!(", {feat:?}"))
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.collect::<String>();
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println!("cargo::rustc-check-cfg=cfg(cpu_feature_always, values(\"\"{features_list}))");
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println!("cargo::rustc-check-cfg=cfg(cpu_feature_auto, values(\"\"{features_list}))");
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println!("cargo::rustc-check-cfg=cfg(cpu_feature_never, values(\"\"{features_list}))");
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let self_modifying = env::var("CARGO_FEATURE_SELF_MODIFYING").is_ok();
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for (name, value) in altfeatures {
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let mut choice = value.as_str().unwrap();
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assert!(matches!(choice, "always" | "never" | "auto"));
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if !self_modifying && choice == "auto" {
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choice = "never";
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}
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println!("cargo:rustc-cfg=cpu_feature_{choice}=\"{name}\"");
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}
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Some(())
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}
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fn main() {
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println!("cargo::rustc-env=TARGET={}", env::var("TARGET").unwrap());
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println!("cargo::rustc-check-cfg=cfg(dtb)");
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let out_dir = env::var("OUT_DIR").unwrap();
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let arch_str = env::var("CARGO_CFG_TARGET_ARCH").unwrap();
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match &*arch_str {
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"aarch64" => {
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println!("cargo::rustc-cfg=dtb");
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}
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"x86" => {
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println!("cargo::rerun-if-changed=src/asm/x86/trampoline.asm");
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let status = Command::new("nasm")
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.arg("-f")
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.arg("bin")
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.arg("-o")
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.arg(format!("{}/trampoline", out_dir))
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.arg("src/asm/x86/trampoline.asm")
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.status()
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.expect("failed to run nasm");
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if !status.success() {
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panic!("nasm failed with exit status {}", status);
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}
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}
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"x86_64" => {
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println!("cargo::rerun-if-changed=src/asm/x86_64/trampoline.asm");
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<<<<<<< HEAD
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println!("cargo::rerun-if-changed=src/asm/x86_64/s3_wakeup.asm");
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=======
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>>>>>>> master
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let status = Command::new("nasm")
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.arg("-f")
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.arg("bin")
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.arg("-o")
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.arg(format!("{}/trampoline", out_dir))
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.arg("src/asm/x86_64/trampoline.asm")
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.status()
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.expect("failed to run nasm");
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if !status.success() {
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panic!("nasm failed with exit status {}", status);
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}
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<<<<<<< HEAD
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let status = Command::new("nasm")
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.arg("-f")
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.arg("bin")
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.arg("-o")
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.arg(format!("{}/s3_wakeup", out_dir))
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.arg("src/asm/x86_64/s3_wakeup.asm")
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.status()
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.expect("failed to run nasm");
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if !status.success() {
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panic!("nasm failed with exit status {}", status);
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}
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=======
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>>>>>>> master
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}
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"riscv64" => {
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println!("cargo::rustc-cfg=dtb");
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}
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_ => (),
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}
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let _ = parse_kconfig(&arch_str);
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}
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