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fix(core/rust): convert Qstr type to representation that matches C code

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matejcik 2024-02-06 14:41:20 +01:00 committed by Jiří Musil
parent ab3c62ae71
commit 6af7b4a4b7
1 changed files with 12 additions and 1 deletions
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13
core/embed/rust/build.rs
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@ -49,6 +49,8 @@ fn generate_qstr_bindings() {
// Tell cargo to invalidate the built crate whenever the header changes. // Tell cargo to invalidate the built crate whenever the header changes.
println!("cargo:rerun-if-changed=qstr.h"); println!("cargo:rerun-if-changed=qstr.h");
let dest_file = PathBuf::from(out_path).join("qstr.rs");
bindgen::Builder::default() bindgen::Builder::default()
.header("qstr.h") .header("qstr.h")
// Build the Qstr enum as a newtype so we can define method on it. // Build the Qstr enum as a newtype so we can define method on it.
@ -71,8 +73,17 @@ fn generate_qstr_bindings() {
.parse_callbacks(Box::new(bindgen::CargoCallbacks)) .parse_callbacks(Box::new(bindgen::CargoCallbacks))
.generate() .generate()
.expect("Unable to generate Rust QSTR bindings") .expect("Unable to generate Rust QSTR bindings")
.write_to_file(PathBuf::from(out_path).join("qstr.rs")) .write_to_file(&dest_file)
.unwrap(); .unwrap();
// rewrite the file to change internal representation of the qstr newtype
let qstr_generated = std::fs::read_to_string(&dest_file).unwrap();
let qstr_modified = qstr_generated.replace(
"pub struct Qstr(pub cty::c_uint);",
"pub struct Qstr(pub usize);",
);
assert_ne!(qstr_generated, qstr_modified, "Failed to rewrite type of Qstr in qstr.rs file.\nThis indicates that the generated file has changed. Please update the rewriting code.");
std::fs::write(&dest_file, qstr_modified).unwrap();
} }
fn prepare_bindings() -> bindgen::Builder { fn prepare_bindings() -> bindgen::Builder {