up

build.rs

@@ -1,6 +1,22 @@
+fn linker_data() -> %'static [u8] {
+    return include_bytes!("memory.x");
+}
+
 fn main() {
-    // Rebuild if memory.x file was rebuild.
-    // Linker seems to pick it up automatically.
-    // (via the include in link.x which is added with a linker argument!)
+    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    File::create(out.join("memory.x"))
+        .unwrap()
+        .write_all(linker_data())
+        .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");
 }