40 lines
1.4 KiB
Rust
40 lines
1.4 KiB
Rust
use std::env;
|
|
use std::ffi::OsStr;
|
|
use std::fs::File;
|
|
use std::io::Write;
|
|
use std::path::{Path, PathBuf};
|
|
|
|
fn main() {
|
|
if env::var("CARGO_FEATURE_RP2040").is_ok() {
|
|
// Put the linker script somewhere the linker can find it
|
|
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
|
let link_x = include_bytes!("link-rp.x.in");
|
|
let mut f = File::create(out.join("link-rp.x")).unwrap();
|
|
f.write_all(link_x).unwrap();
|
|
|
|
println!("cargo:rustc-link-search={}", out.display());
|
|
|
|
println!("cargo:rerun-if-changed=build.rs");
|
|
println!("cargo:rerun-if-changed=link-rp.x.in");
|
|
}
|
|
|
|
// code below taken from https://github.com/rust-embedded/cortex-m/blob/master/cortex-m-rt/build.rs
|
|
|
|
let mut target = env::var("TARGET").unwrap();
|
|
|
|
// When using a custom target JSON, `$TARGET` contains the path to that JSON file. By
|
|
// convention, these files are named after the actual target triple, eg.
|
|
// `thumbv7m-customos-elf.json`, so we extract the file stem here to allow custom target specs.
|
|
let path = Path::new(&target);
|
|
if path.extension() == Some(OsStr::new("json")) {
|
|
target = path
|
|
.file_stem()
|
|
.map_or(target.clone(), |stem| stem.to_str().unwrap().to_string());
|
|
}
|
|
|
|
println!("cargo::rustc-check-cfg=cfg(has_fpu)");
|
|
if target.ends_with("-eabihf") {
|
|
println!("cargo:rustc-cfg=has_fpu");
|
|
}
|
|
}
|