rewrite pointer-auth-link-with-c to rmake

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -60,7 +60,6 @@ run-make/pdb-buildinfo-cl-cmd/Makefile
 run-make/pgo-gen-lto/Makefile
 run-make/pgo-gen-no-imp-symbols/Makefile
 run-make/pgo-indirect-call-promotion/Makefile
-run-make/pointer-auth-link-with-c/Makefile
 run-make/print-calling-conventions/Makefile
 run-make/print-target-list/Makefile
 run-make/raw-dylib-alt-calling-convention/Makefile

tests/run-make/pointer-auth-link-with-c/Makefile

@@ -1,15 +0,0 @@
-include ../tools.mk
-
-# only-aarch64
-# ignore-cross-compile
-
-all:
-	$(COMPILE_OBJ) $(TMPDIR)/test.o test.c
-	$(AR) rcs $(TMPDIR)/libtest.a $(TMPDIR)/test.o
-	$(RUSTC) --target $(TARGET) -Z branch-protection=bti,pac-ret,leaf test.rs
-	$(call RUN,test)
-
-	$(COMPILE_OBJ) $(TMPDIR)/test.o test.c -mbranch-protection=bti+pac-ret+leaf
-	$(AR) rcs $(TMPDIR)/libtest.a $(TMPDIR)/test.o
-	$(RUSTC) --target $(TARGET) -Z branch-protection=bti,pac-ret,leaf test.rs
-	$(call RUN,test)

tests/run-make/pointer-auth-link-with-c/rmake.rs

@@ -0,0 +1,28 @@
+// `-Z branch protection` is an unstable compiler feature which adds pointer-authentication
+// code (PAC), a useful hashing measure for verifying that pointers have not been modified.
+// This test checks that compilation and execution is successful when this feature is activated,
+// with some of its possible extra arguments (bti, pac-ret, leaf).
+// See https://github.com/rust-lang/rust/pull/88354
+
+//@ only-aarch64
+// Reason: branch protection is not supported on other architectures
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+
+use run_make_support::{build_native_static_lib, cc, is_msvc, llvm_ar, run, rustc};
+
+fn main() {
+    build_native_static_lib("test");
+    rustc().arg("-Zbranch-protection=bti,pac-ret,leaf").input("test.rs").run();
+    run("test");
+    cc().arg("-v")
+        .arg("-c")
+        .out_exe("test")
+        .input("test.c")
+        .arg("-mbranch-protection=bti+pac-ret+leaf")
+        .run();
+    let obj_file = if is_msvc() { "test.obj" } else { "test" };
+    llvm_ar().obj_to_ar().output_input("libtest.a", &obj_file).run();
+    rustc().arg("-Zbranch-protection=bti,pac-ret,leaf").input("test.rs").run();
+    run("test");
+}