Rollup merge of #104360 - petrochenkov:stabverb, r=TaKO8Ki

Stabilize native library modifier `verbatim`

Stabilization report - https://github.com/rust-lang/rust/pull/104360#issuecomment-1312724787.

cc https://github.com/rust-lang/rust/issues/81490
Closes https://github.com/rust-lang/rust/issues/99425

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -377,12 +377,8 @@ fn link_rlib<'a>(
                 find_native_static_library(name.as_str(), lib.verbatim, &lib_search_paths, sess);
             if sess.opts.unstable_opts.packed_bundled_libs && flavor == RlibFlavor::Normal {
                 let filename = lib.filename.unwrap();
-                let lib_path = find_native_static_library(
-                    filename.as_str(),
-                    Some(true),
-                    &lib_search_paths,
-                    sess,
-                );
+                let lib_path =
+                    find_native_static_library(filename.as_str(), true, &lib_search_paths, sess);
                 let src = read(lib_path)
                     .map_err(|e| sess.emit_fatal(errors::ReadFileError { message: e }))?;
                 let (data, _) = create_wrapper_file(sess, b".bundled_lib".to_vec(), &src);
@@ -465,7 +461,7 @@ fn collate_raw_dylibs<'a, 'b>(
 
     for lib in used_libraries {
         if lib.kind == NativeLibKind::RawDylib {
-            let ext = if matches!(lib.verbatim, Some(true)) { "" } else { ".dll" };
+            let ext = if lib.verbatim { "" } else { ".dll" };
             let name = format!("{}{}", lib.name.expect("unnamed raw-dylib library"), ext);
             let imports = dylib_table.entry(name.clone()).or_default();
             for import in &lib.dll_imports {
@@ -1335,7 +1331,7 @@ fn print_native_static_libs(sess: &Session, all_native_libs: &[NativeLib]) {
                 NativeLibKind::Static { bundle: Some(false), .. }
                 | NativeLibKind::Dylib { .. }
                 | NativeLibKind::Unspecified => {
-                    let verbatim = lib.verbatim.unwrap_or(false);
+                    let verbatim = lib.verbatim;
                     if sess.target.is_like_msvc {
                         Some(format!("{}{}", name, if verbatim { "" } else { ".lib" }))
                     } else if sess.target.linker_flavor.is_gnu() {
@@ -2306,7 +2302,7 @@ fn add_native_libs_from_crate(
         _ => &codegen_results.crate_info.native_libraries[&cnum],
     };
 
-    let mut last = (None, NativeLibKind::Unspecified, None);
+    let mut last = (None, NativeLibKind::Unspecified, false);
     for lib in native_libs {
         let Some(name) = lib.name else {
             continue;
@@ -2323,7 +2319,7 @@ fn add_native_libs_from_crate(
         };
 
         let name = name.as_str();
-        let verbatim = lib.verbatim.unwrap_or(false);
+        let verbatim = lib.verbatim;
         match lib.kind {
             NativeLibKind::Static { bundle, whole_archive } => {
                 if link_static {

compiler/rustc_codegen_ssa/src/back/linker.rs

@@ -515,7 +515,7 @@ impl<'a> Linker for GccLinker<'a> {
             // -force_load is the macOS equivalent of --whole-archive, but it
             // involves passing the full path to the library to link.
             self.linker_arg("-force_load");
-            let lib = find_native_static_library(lib, Some(verbatim), search_path, &self.sess);
+            let lib = find_native_static_library(lib, verbatim, search_path, &self.sess);
             self.linker_arg(&lib);
         }
     }

compiler/rustc_codegen_ssa/src/lib.rs

@@ -116,7 +116,7 @@ pub struct NativeLib {
     pub name: Option<Symbol>,
     pub filename: Option<Symbol>,
     pub cfg: Option<ast::MetaItem>,
-    pub verbatim: Option<bool>,
+    pub verbatim: bool,
     pub dll_imports: Vec<cstore::DllImport>,
 }
 
@@ -127,7 +127,7 @@ impl From<&cstore::NativeLib> for NativeLib {
             filename: lib.filename,
             name: lib.name,
             cfg: lib.cfg.clone(),
-            verbatim: lib.verbatim,
+            verbatim: lib.verbatim.unwrap_or(false),
             dll_imports: lib.dll_imports.clone(),
         }
     }

compiler/rustc_feature/src/accepted.rs

@@ -237,6 +237,8 @@ declare_features! (
     (accepted, native_link_modifiers, "1.61.0", Some(81490), None),
     /// Allows specifying the bundle link modifier
     (accepted, native_link_modifiers_bundle, "1.63.0", Some(81490), None),
+    /// Allows specifying the verbatim link modifier
+    (accepted, native_link_modifiers_verbatim, "CURRENT_RUSTC_VERSION", Some(81490), None),
     /// Allows specifying the whole-archive link modifier
     (accepted, native_link_modifiers_whole_archive, "1.61.0", Some(81490), None),
     /// Allows using non lexical lifetimes (RFC 2094).

compiler/rustc_feature/src/active.rs

@@ -455,8 +455,6 @@ declare_features! (
     (active, naked_functions, "1.9.0", Some(32408), None),
     /// Allows specifying the as-needed link modifier
     (active, native_link_modifiers_as_needed, "1.53.0", Some(81490), None),
-    /// Allows specifying the verbatim link modifier
-    (active, native_link_modifiers_verbatim, "1.53.0", Some(81490), None),
     /// Allow negative trait implementations.
     (active, negative_impls, "1.44.0", Some(68318), None),
     /// Allows the `!` type. Does not imply 'exhaustive_patterns' (below) any more.

compiler/rustc_metadata/src/native_libs.rs

@@ -29,11 +29,11 @@ use std::path::PathBuf;
 
 pub fn find_native_static_library(
     name: &str,
-    verbatim: Option<bool>,
+    verbatim: bool,
     search_paths: &[PathBuf],
     sess: &Session,
 ) -> PathBuf {
-    let formats = if verbatim.unwrap_or(false) {
+    let formats = if verbatim {
         vec![("".into(), "".into())]
     } else {
         let os = (sess.target.staticlib_prefix.clone(), sess.target.staticlib_suffix.clone());
@@ -52,7 +52,7 @@ pub fn find_native_static_library(
         }
     }
 
-    sess.emit_fatal(MissingNativeLibrary::new(name, verbatim.unwrap_or(false)));
+    sess.emit_fatal(MissingNativeLibrary::new(name, verbatim));
 }
 
 fn find_bundled_library(
@@ -66,7 +66,7 @@ fn find_bundled_library(
             let NativeLibKind::Static { bundle: Some(true) | None, .. } = kind {
         find_native_static_library(
             name.unwrap().as_str(),
-            verbatim,
+            verbatim.unwrap_or(false),
             &sess.target_filesearch(PathKind::Native).search_path_dirs(),
             sess,
         ).file_name().and_then(|s| s.to_str()).map(Symbol::intern)
@@ -311,10 +311,7 @@ impl<'tcx> Collector<'tcx> {
                             sess.emit_err(BundleNeedsStatic { span });
                         }
 
-                        ("verbatim", _) => {
-                            report_unstable_modifier!(native_link_modifiers_verbatim);
-                            assign_modifier(&mut verbatim)
-                        }
+                        ("verbatim", _) => assign_modifier(&mut verbatim),
 
                         ("whole-archive", Some(NativeLibKind::Static { whole_archive, .. })) => {
                             assign_modifier(whole_archive)

compiler/rustc_session/src/config.rs

@@ -2029,10 +2029,7 @@ fn parse_native_lib_modifiers(
                 "linking modifier `bundle` is only compatible with `static` linking kind",
             ),
 
-            ("verbatim", _) => {
-                report_unstable_modifier();
-                assign_modifier(&mut verbatim)
-            }
+            ("verbatim", _) => assign_modifier(&mut verbatim),
 
             ("whole-archive", NativeLibKind::Static { whole_archive, .. }) => {
                 assign_modifier(whole_archive)