Serialize OutputFilenames into rmeta file

This ensures that linking will use the correct crate name even when
`#![crate_name = "..."]` is used to specify the crate name.

2 files changed, 9 insertions, 19 deletions

diff --git a/compiler/rustc_interface/src/interface.rs b/compiler/rustc_interface/src/interface.rs
index a55cffbf6df..8a6d8d3d42e 100644
--- a/compiler/rustc_interface/src/interface.rs
+++ b/compiler/rustc_interface/src/interface.rs
@@ -1,7 +1,7 @@
 use crate::util;
 
 use rustc_ast::token;
-use rustc_ast::{self as ast, LitKind, MetaItemKind};
+use rustc_ast::{LitKind, MetaItemKind};
 use rustc_codegen_ssa::traits::CodegenBackend;
 use rustc_data_structures::defer;
 use rustc_data_structures::fx::{FxHashMap, FxHashSet};
@@ -15,9 +15,7 @@ use rustc_middle::{bug, ty};
 use rustc_parse::maybe_new_parser_from_source_str;
 use rustc_query_impl::QueryCtxt;
 use rustc_query_system::query::print_query_stack;
-use rustc_session::config::{
-    self, Cfg, CheckCfg, ExpectedValues, Input, OutFileName, OutputFilenames,
-};
+use rustc_session::config::{self, Cfg, CheckCfg, ExpectedValues, Input, OutFileName};
 use rustc_session::filesearch::sysroot_candidates;
 use rustc_session::parse::ParseSess;
 use rustc_session::{lint, CompilerIO, EarlyErrorHandler, Session};
@@ -43,19 +41,6 @@ pub struct Compiler {
     pub(crate) override_queries: Option<fn(&Session, &mut Providers)>,
 }
 
-impl Compiler {
-    pub fn build_output_filenames(
-        &self,
-        sess: &Session,
-        attrs: &[ast::Attribute],
-    ) -> OutputFilenames {
-        util::build_output_filenames(
-            sess,
-            rustc_session::output::find_crate_name(sess, attrs).to_string(),
-        )
-    }
-}
-
 /// Converts strings provided as `--cfg [cfgspec]` into a `Cfg`.
 pub(crate) fn parse_cfg(handler: &EarlyErrorHandler, cfgs: Vec<String>) -> Cfg {
     cfgs.into_iter()
diff --git a/compiler/rustc_interface/src/queries.rs b/compiler/rustc_interface/src/queries.rs
index 3d65c03309d..95ad6f22b43 100644
--- a/compiler/rustc_interface/src/queries.rs
+++ b/compiler/rustc_interface/src/queries.rs
@@ -273,8 +273,13 @@ impl Linker {
 
         if sess.opts.unstable_opts.no_link {
             let rlink_file = self.output_filenames.with_extension(config::RLINK_EXT);
-            CodegenResults::serialize_rlink(sess, &rlink_file, &codegen_results)
-                .map_err(|error| sess.emit_fatal(FailedWritingFile { path: &rlink_file, error }))?;
+            CodegenResults::serialize_rlink(
+                sess,
+                &rlink_file,
+                &codegen_results,
+                &*self.output_filenames,
+            )
+            .map_err(|error| sess.emit_fatal(FailedWritingFile { path: &rlink_file, error }))?;
             return Ok(());
         }