Rollup merge of #91606 - joshtriplett:stabilize-print-link-args, r=pnkfelix

Stabilize `-Z print-link-args` as `--print link-args`

We have stable options for adding linker arguments; we should have a
stable option to help debug linker arguments.

Add documentation for the new option. In the documentation, make it clear that
the *exact* format of the output is not a stable guarantee.

1 files changed, 4 insertions, 3 deletions

diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs
index 694c679c158..19fa6812b45 100644
--- a/compiler/rustc_driver/src/lib.rs
+++ b/compiler/rustc_driver/src/lib.rs
@@ -645,9 +645,9 @@ impl RustcDefaultCalls {
         temps_dir: &Option<PathBuf>,
     ) -> Compilation {
         use rustc_session::config::PrintRequest::*;
-        // PrintRequest::NativeStaticLibs is special - printed during linking
+        // NativeStaticLibs and LinkArgs are special - printed during linking
         // (empty iterator returns true)
-        if sess.opts.prints.iter().all(|&p| p == PrintRequest::NativeStaticLibs) {
+        if sess.opts.prints.iter().all(|&p| p == NativeStaticLibs || p == LinkArgs) {
             return Compilation::Continue;
         }
 
@@ -738,7 +738,8 @@ impl RustcDefaultCalls {
                     codegen_backend.print(*req, sess);
                 }
                 // Any output here interferes with Cargo's parsing of other printed output
-                PrintRequest::NativeStaticLibs => {}
+                NativeStaticLibs => {}
+                LinkArgs => {}
             }
         }
         Compilation::Stop