rewrite link-path-order to rmake

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -56,7 +56,6 @@ run-make/libtest-junit/Makefile
 run-make/libtest-thread-limit/Makefile
 run-make/link-cfg/Makefile
 run-make/link-framework/Makefile
-run-make/link-path-order/Makefile
 run-make/linkage-attr-on-static/Makefile
 run-make/long-linker-command-lines-cmd-exe/Makefile
 run-make/long-linker-command-lines/Makefile

tests/run-make/link-path-order/Makefile

@@ -1,19 +0,0 @@
-# ignore-cross-compile
-include ../tools.mk
-
-# Verifies that the -L arguments given to the linker is in the same order
-# as the -L arguments on the rustc command line.
-
-CORRECT_DIR=$(TMPDIR)/correct
-WRONG_DIR=$(TMPDIR)/wrong
-
-F := $(call NATIVE_STATICLIB_FILE,foo)
-
-all: $(call NATIVE_STATICLIB,correct) $(call NATIVE_STATICLIB,wrong)
-	mkdir -p $(CORRECT_DIR) $(WRONG_DIR)
-	mv $(call NATIVE_STATICLIB,correct) $(CORRECT_DIR)/$(F)
-	mv $(call NATIVE_STATICLIB,wrong) $(WRONG_DIR)/$(F)
-	$(RUSTC) main.rs -o $(TMPDIR)/should_succeed -L $(CORRECT_DIR) -L $(WRONG_DIR)
-	$(call RUN,should_succeed)
-	$(RUSTC) main.rs -o $(TMPDIR)/should_fail -L $(WRONG_DIR) -L $(CORRECT_DIR)
-	$(call FAIL,should_fail)

tests/run-make/link-path-order/rmake.rs

@@ -0,0 +1,33 @@
+// The order in which "library search path" `-L` arguments are given to the command line rustc
+// is important. These arguments must match the order of the linker's arguments. In this test,
+// fetching the Wrong library before the Correct one causes a function to return 0 instead of the
+// expected 1, causing a runtime panic, as expected.
+// See https://github.com/rust-lang/rust/pull/16904
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+
+use run_make_support::{build_native_static_lib, path, rfs, run, run_fail, rustc, static_lib_name};
+
+fn main() {
+    build_native_static_lib("correct");
+    build_native_static_lib("wrong");
+    rfs::create_dir("correct");
+    rfs::create_dir("wrong");
+    rfs::rename(static_lib_name("correct"), path("correct").join(static_lib_name("foo")));
+    rfs::rename(static_lib_name("wrong"), path("wrong").join(static_lib_name("foo")));
+    rustc()
+        .input("main.rs")
+        .output("should_succeed")
+        .library_search_path("correct")
+        .library_search_path("wrong")
+        .run();
+    run("should_succeed");
+    rustc()
+        .input("main.rs")
+        .output("should_fail")
+        .library_search_path("wrong")
+        .library_search_path("correct")
+        .run();
+    run_fail("should_fail");
+}

tests/run-make/lto-smoke-c/rmake.rs

@@ -13,8 +13,8 @@ fn main() {
     cc().input("bar.c")
         .arg(static_lib_name("foo"))
         .out_exe("bar")
-        .args(&extra_c_flags())
+        .args(extra_c_flags())
-        .args(&extra_cxx_flags())
+        .args(extra_cxx_flags())
         .run();
     run("bar");
 }