rewrite rlib-format-packed-bundled-libs-2 to rmake

Author: Oneirical

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -51,7 +51,6 @@ run-make/redundant-libs/Makefile
 run-make/remap-path-prefix-dwarf/Makefile
 run-make/reproducible-build-2/Makefile
 run-make/reproducible-build/Makefile
-run-make/rlib-format-packed-bundled-libs-2/Makefile
 run-make/rlib-format-packed-bundled-libs/Makefile
 run-make/sanitizer-cdylib-link/Makefile
 run-make/sanitizer-dylib-link/Makefile

tests/run-make/rlib-format-packed-bundled-libs-2/Makefile

@@ -0,0 +1,32 @@
+// `-Z packed_bundled_libs` is an unstable rustc flag that makes the compiler
+// only require a native library and no supplementary object files to compile.
+// This test simply checks that this flag can be passed alongside verbatim syntax
+// in rustc flags without a compilation failure or the removal of expected symbols.
+// See https://github.com/rust-lang/rust/pull/100101
+
+//FIXME(Oneirical): try it on test-various
+
+use run_make_support::{llvm_ar, llvm_readobj, regex, rfs, rust_lib_name, rustc};
+
+fn main() {
+    // Build a strangely named dependency.
+    rustc().input("native_dep.rs").crate_type("staticlib").output("native_dep.ext").run();
+
+    rustc().input("rust_dep.rs").crate_type("rlib").arg("-Zpacked_bundled_libs").run();
+    let symbols = llvm_readobj().symbols().input(rust_lib_name("rust_dep")).run().stdout_utf8();
+    let re = regex::Regex::new("U.*native_f1").unwrap();
+    assert!(re.is_match(&symbols));
+    llvm_ar()
+        .arg("t")
+        .arg(rust_lib_name("rust_dep"))
+        .run()
+        .assert_stdout_contains("native_dep.ext");
+
+    // Ensure the compiler does not use files it should not be aware of.
+    rfs::remove_file("native_dep.ext");
+    rustc()
+        .input("main.rs")
+        .extern_("rust_dep", rust_lib_name("rust_dep"))
+        .arg("-Zpacked_bundled_libs")
+        .run();
+}