Migrate run-make/cdylib to rmake.rs

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -14,7 +14,6 @@ run-make/c-unwind-abi-catch-panic/Makefile
 run-make/cat-and-grep-sanity-check/Makefile
 run-make/cdylib-dylib-linkage/Makefile
 run-make/cdylib-fewer-symbols/Makefile
-run-make/cdylib/Makefile
 run-make/codegen-options-parsing/Makefile
 run-make/comment-section/Makefile
 run-make/compiler-lookup-paths-2/Makefile

tests/run-make/cdylib/Makefile

@@ -1,23 +0,0 @@
-# When the cdylib crate type was added as a variation of dylib, it needed a test to check its function.
-# See https://github.com/rust-lang/rust/pull/33553
-
-# ignore-cross-compile
-include ../tools.mk
-
-all: $(call RUN_BINFILE,foo)
-	$(call RUN,foo)
-	rm $(call DYLIB,foo)
-	$(RUSTC) foo.rs -C lto
-	$(call RUN,foo)
-
-ifdef IS_MSVC
-$(call RUN_BINFILE,foo): $(call DYLIB,foo)
-	$(CC) $(CFLAGS) foo.c $(TMPDIR)/foo.dll.lib $(call OUT_EXE,foo)
-else
-$(call RUN_BINFILE,foo): $(call DYLIB,foo)
-	$(CC) $(CFLAGS) foo.c -lfoo -o $(call RUN_BINFILE,foo) -L $(TMPDIR)
-endif
-
-$(call DYLIB,foo):
-	$(RUSTC) bar.rs
-	$(RUSTC) foo.rs

tests/run-make/cdylib/rmake.rs

@@ -0,0 +1,36 @@
+// This test tries to check that basic cdylib libraries can be compiled and linked successfully
+// with C code, that the cdylib itself can depend on another rlib, and that the library can be built
+// with LTO.
+//
+// - `bar.rs` is a rlib
+// - `foo.rs` is a cdylib that relies on an extern crate `bar` and defines two `extern "C"`
+//   functions:
+//     - `foo()` which calls `bar::bar()`.
+//     - `bar()` which implements basic addition.
+
+//@ ignore-cross-compile
+
+use std::fs::remove_file;
+
+use run_make_support::{cc, dynamic_lib, is_msvc, run, rustc, tmp_dir};
+
+fn main() {
+    rustc().input("bar.rs").run();
+    rustc().input("foo.rs").run();
+
+    if is_msvc() {
+        cc().input("foo.c").arg(tmp_dir().join("foo.dll.lib")).out_exe("foo").run();
+    } else {
+        cc().input("foo.c")
+            .arg("-lfoo")
+            .output(tmp_dir().join("foo"))
+            .library_search_path(tmp_dir())
+            .run();
+    }
+
+    run("foo");
+    remove_file(dynamic_lib("foo")).unwrap();
+
+    rustc().input("foo.rs").arg("-Clto").run();
+    run("foo");
+}