Auto merge of #128107 - Oneirical:tomato-hartester, r=jieyouxu

Migrate `raw-dylib-alt-calling-convention`, `raw-dylib-c` and `redundant-libs` `run-make` tests to rmake

Part of #121876 and the associated [Google Summer of Code project](https://blog.rust-lang.org/2024/05/01/gsoc-2024-selected-projects.html).

Please try:

// try-job: x86_64-msvc
// try-job: x86_64-mingw
// try-job: i686-msvc
try-job: x86_64-gnu-llvm-17
try-job: aarch64-apple

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -22,9 +22,6 @@ run-make/no-alloc-shim/Makefile
 run-make/pdb-buildinfo-cl-cmd/Makefile
 run-make/pgo-gen-lto/Makefile
 run-make/pgo-indirect-call-promotion/Makefile
-run-make/raw-dylib-alt-calling-convention/Makefile
-run-make/raw-dylib-c/Makefile
-run-make/redundant-libs/Makefile
 run-make/remap-path-prefix-dwarf/Makefile
 run-make/reproducible-build/Makefile
 run-make/rlib-format-packed-bundled-libs/Makefile

tests/run-make/raw-dylib-alt-calling-convention/rmake.rs

@@ -0,0 +1,32 @@
+// `raw-dylib` is a Windows-specific attribute which emits idata sections for the items in the
+// attached extern block,
+// so they may be linked against without linking against an import library.
+// To learn more, read https://github.com/rust-lang/rfcs/blob/master/text/2627-raw-dylib-kind.md
+// This test uses this feature alongside alternative calling conventions, checking that both
+// features are compatible and result in the expected output upon execution of the binary.
+// See https://github.com/rust-lang/rust/pull/84171
+
+//@ only-x86
+//@ only-windows
+
+use run_make_support::{build_native_dynamic_lib, diff, is_msvc, run, run_with_args, rustc};
+
+fn main() {
+    rustc()
+        .crate_type("lib")
+        .crate_name("raw_dylib_alt_calling_convention_test")
+        .input("lib.rs")
+        .run();
+    rustc().crate_type("bin").input("driver.rs").run();
+    build_native_dynamic_lib("extern");
+    let out = run("driver").stdout_utf8();
+    diff().expected_file("output.txt").actual_text("actual", out).normalize(r#"\r"#, "").run();
+    if is_msvc() {
+        let out_msvc = run_with_args("driver", &["true"]).stdout_utf8();
+        diff()
+            .expected_file("output.msvc.txt")
+            .actual_text("actual", out_msvc)
+            .normalize(r#"\r"#, "")
+            .run();
+    }
+}

tests/run-make/raw-dylib-c/rmake.rs

@@ -0,0 +1,29 @@
+// `raw-dylib` is a Windows-specific attribute which emits idata sections for the items in the
+// attached extern block,
+// so they may be linked against without linking against an import library.
+// To learn more, read https://github.com/rust-lang/rfcs/blob/master/text/2627-raw-dylib-kind.md
+// This test is the simplest of the raw-dylib tests, simply smoke-testing that the feature
+// can be used to build an executable binary with an expected output with native C files
+// compiling into dynamic libraries.
+// See https://github.com/rust-lang/rust/pull/86419
+
+//@ only-windows
+
+use run_make_support::{build_native_dynamic_lib, diff, run, rustc};
+
+fn main() {
+    rustc().crate_type("lib").crate_name("raw_dylib_test").input("lib.rs").run();
+    rustc().crate_type("bin").input("driver.rs").run();
+    rustc().crate_type("bin").crate_name("raw_dylib_test_bin").input("lib.rs").run();
+    build_native_dynamic_lib("extern_1");
+    build_native_dynamic_lib("extern_2");
+    let out_driver = run("driver").stdout_utf8();
+    let out_raw = run("raw_dylib_test_bin").stdout_utf8();
+
+    diff()
+        .expected_file("output.txt")
+        .actual_text("actual", out_driver)
+        .normalize(r#"\r"#, "")
+        .run();
+    diff().expected_file("output.txt").actual_text("actual", out_raw).normalize(r#"\r"#, "").run();
+}

tests/run-make/redundant-libs/rmake.rs

@@ -0,0 +1,34 @@
+// rustc will remove one of the two redundant references to foo below.  Depending
+// on which one gets removed, we'll get a linker error on SOME platforms (like
+// Linux).  On these platforms, when a library is referenced, the linker will
+// only pull in the symbols needed _at that point in time_.  If a later library
+// depends on additional symbols from the library, they will not have been pulled
+// in, and you'll get undefined symbols errors.
+//
+// So in this example, we need to ensure that rustc keeps the _later_ reference
+// to foo, and not the former one.
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+//@ ignore-windows-msvc
+// Reason: this test links libraries via link.exe, which only accepts the import library
+// for the dynamic library, i.e. `foo.dll.lib`. However, build_native_dynamic_lib only
+// produces `foo.dll` - the dynamic library itself. To make this test work on MSVC, one
+// would need to derive the import library from the dynamic library.
+// See https://stackoverflow.com/questions/9360280/
+
+use run_make_support::{
+    build_native_dynamic_lib, build_native_static_lib, cwd, is_msvc, rfs, run, rustc,
+};
+
+fn main() {
+    build_native_dynamic_lib("foo");
+    build_native_static_lib("bar");
+    build_native_static_lib("baz");
+    rustc()
+        .args(&["-lstatic=bar", "-lfoo", "-lstatic=baz", "-lfoo"])
+        .input("main.rs")
+        .print("link-args")
+        .run();
+    run("main");
+}