36 lines
1.4 KiB
Rust
36 lines
1.4 KiB
Rust
//! This build script copies the `memory.x` file from the crate root into
|
|
//! a directory where the linker can always find it at build time.
|
|
//! For many projects this is optional, as the linker always searches the
|
|
//! project root directory -- wherever `Cargo.toml` is. However, if you
|
|
//! are using a workspace or have a more complicated build setup, this
|
|
//! build script becomes required. Additionally, by requesting that
|
|
//! Cargo re-run the build script whenever `memory.x` is changed,
|
|
//! updating `memory.x` ensures a rebuild of the application with the
|
|
//! new memory settings.
|
|
|
|
use std::env;
|
|
use std::fs::File;
|
|
use std::io::Write;
|
|
use std::path::PathBuf;
|
|
|
|
fn main() {
|
|
// Put `memory.x` in our output directory and ensure it's
|
|
// on the linker search path.
|
|
let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
|
|
File::create(out.join("memory.x"))
|
|
.unwrap()
|
|
.write_all(include_bytes!("memory.x"))
|
|
.unwrap();
|
|
println!("cargo:rustc-link-search={}", out.display());
|
|
|
|
// By default, Cargo will re-run a build script whenever
|
|
// any file in the project changes. By specifying `memory.x`
|
|
// here, we ensure the build script is only re-run when
|
|
// `memory.x` is changed.
|
|
println!("cargo:rerun-if-changed=memory.x");
|
|
|
|
println!("cargo:rustc-link-arg-bins=--nmagic");
|
|
println!("cargo:rustc-link-arg-bins=-Tlink.x");
|
|
println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
|
|
}
|