Auto merge of #132919 - matthiaskrgr:rollup-ogghyvp, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #120077 (Add Set entry API )
 - #132144 (Arbitrary self types v2: (unused) Receiver trait)
 - #132297 (Document some `check_expr` methods, and other misc `hir_typeck` tweaks)
 - #132820 (Add a default implementation for CodegenBackend::link)
 - #132881 (triagebot: Autolabel rustdoc book)
 - #132912 (Simplify some places that deal with generic parameter defaults)
 - #132916 (Unvacation fmease)

r? `@ghost`
`@rustbot` modify labels: rollup

3 files changed, 17 insertions, 5 deletions

diff --git a/compiler/rustc_codegen_ssa/src/back/archive.rs b/compiler/rustc_codegen_ssa/src/back/archive.rs
index e83bfa7b70d..d4836eb7a1d 100644
--- a/compiler/rustc_codegen_ssa/src/back/archive.rs
+++ b/compiler/rustc_codegen_ssa/src/back/archive.rs
@@ -304,6 +304,14 @@ pub trait ArchiveBuilder {
     fn build(self: Box<Self>, output: &Path) -> bool;
 }
 
+pub struct ArArchiveBuilderBuilder;
+
+impl ArchiveBuilderBuilder for ArArchiveBuilderBuilder {
+    fn new_archive_builder<'a>(&self, sess: &'a Session) -> Box<dyn ArchiveBuilder + 'a> {
+        Box::new(ArArchiveBuilder::new(sess, &DEFAULT_OBJECT_READER))
+    }
+}
+
 #[must_use = "must call build() to finish building the archive"]
 pub struct ArArchiveBuilder<'a> {
     sess: &'a Session,
diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs
index 3120b5bf0af..fc1f96481cf 100644
--- a/compiler/rustc_codegen_ssa/src/back/link.rs
+++ b/compiler/rustc_codegen_ssa/src/back/link.rs
@@ -69,7 +69,7 @@ pub fn ensure_removed(dcx: DiagCtxtHandle<'_>, path: &Path) {
 pub fn link_binary(
     sess: &Session,
     archive_builder_builder: &dyn ArchiveBuilderBuilder,
-    codegen_results: &CodegenResults,
+    codegen_results: CodegenResults,
     outputs: &OutputFilenames,
 ) -> Result<(), ErrorGuaranteed> {
     let _timer = sess.timer("link_binary");
@@ -116,7 +116,7 @@ pub fn link_binary(
                     link_rlib(
                         sess,
                         archive_builder_builder,
-                        codegen_results,
+                        &codegen_results,
                         RlibFlavor::Normal,
                         &path,
                     )?
@@ -126,7 +126,7 @@ pub fn link_binary(
                     link_staticlib(
                         sess,
                         archive_builder_builder,
-                        codegen_results,
+                        &codegen_results,
                         &out_filename,
                         &path,
                     )?;
@@ -137,7 +137,7 @@ pub fn link_binary(
                         archive_builder_builder,
                         crate_type,
                         &out_filename,
-                        codegen_results,
+                        &codegen_results,
                         path.as_ref(),
                     )?;
                 }
diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs
index 676fb181d67..cbf214763b4 100644
--- a/compiler/rustc_codegen_ssa/src/traits/backend.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs
@@ -16,6 +16,8 @@ use rustc_span::symbol::Symbol;
 
 use super::CodegenObject;
 use super::write::WriteBackendMethods;
+use crate::back::archive::ArArchiveBuilderBuilder;
+use crate::back::link::link_binary;
 use crate::back::write::TargetMachineFactoryFn;
 use crate::{CodegenResults, ModuleCodegen};
 
@@ -87,7 +89,9 @@ pub trait CodegenBackend {
         sess: &Session,
         codegen_results: CodegenResults,
         outputs: &OutputFilenames,
-    ) -> Result<(), ErrorGuaranteed>;
+    ) -> Result<(), ErrorGuaranteed> {
+        link_binary(sess, &ArArchiveBuilderBuilder, codegen_results, outputs)
+    }
 
     /// Returns `true` if this backend can be safely called from multiple threads.
     ///