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Include a header in .rlink files to provide nicer error messages when a wrong file is parsed as .rlink

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This commit is contained in:
Jakub Beránek 2022-04-02 16:50:08 +02:00
parent 07a461ad52
commit e0d4226677
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3 changed files with 36 additions and 5 deletions
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6
compiler/rustc_interface/src/queries.rs
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@ -18,6 +18,7 @@ use rustc_span::symbol::sym;
use std::any::Any;
use std::cell::{Ref, RefCell, RefMut};
use std::rc::Rc;
use rustc_codegen_ssa::CodegenResults;
/// Represent the result of a query.
///
@ -360,10 +361,9 @@ impl Linker {
}
if sess.opts.debugging_opts.no_link {
let mut encoder = rustc_serialize::opaque::Encoder::new(Vec::new());
rustc_serialize::Encodable::encode(&codegen_results, &mut encoder).unwrap();
let encoded = CodegenResults::serialize_rlink(&codegen_results);
let rlink_file = self.prepare_outputs.with_extension(config::RLINK_EXT);
std::fs::write(&rlink_file, encoder.into_inner()).map_err(|err| {
std::fs::write(&rlink_file, encoded).map_err(|err| {
sess.fatal(&format!("failed to write file {}: {}", rlink_file.display(), err));
})?;
return Ok(());