35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
use regex::Regex;
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use std::fmt::Write as _;
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use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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use std::{env, fs};
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fn main() {
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let chip = env::vars_os()
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.map(|(a, _)| a.to_string_lossy().to_string())
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.find(|x| x.starts_with("CARGO_FEATURE_STM32"))
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.expect("No stm32xx Cargo feature enabled")
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.strip_prefix("CARGO_FEATURE_")
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.unwrap()
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.to_ascii_lowercase();
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let mut device_x = String::new();
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let chip_rs = fs::read_to_string(format!("src/pac/{}.rs", chip)).unwrap();
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let re = Regex::new("declare!\\(([a-zA-Z0-9_]+)\\)").unwrap();
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for c in re.captures_iter(&chip_rs) {
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let name = c.get(1).unwrap().as_str();
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write!(&mut device_x, "PROVIDE({} = DefaultHandler);\n", name).unwrap();
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}
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let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
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File::create(out.join("device.x"))
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.unwrap()
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.write_all(device_x.as_bytes())
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.unwrap();
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println!("cargo:rustc-link-search={}", out.display());
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println!("cargo:rerun-if-changed=src/pac/{}.rs", chip);
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println!("cargo:rerun-if-changed=build.rs");
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}
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