Migrate relro-levels to rmake

Author: Rejyr

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -151,7 +151,6 @@ run-make/raw-dylib-inline-cross-dylib/Makefile
 run-make/raw-dylib-link-ordinal/Makefile
 run-make/raw-dylib-stdcall-ordinal/Makefile
 run-make/redundant-libs/Makefile
-run-make/relro-levels/Makefile
 run-make/remap-path-prefix-dwarf/Makefile
 run-make/remap-path-prefix/Makefile
 run-make/reproducible-build-2/Makefile

tests/run-make/relro-levels/Makefile

@@ -0,0 +1,29 @@
+// This tests the different -Crelro-level values, and makes sure that they work properly.
+
+//@ ignore-cross-compile
+//@ only-linux
+
+use run_make_support::llvm_readobj;
+use run_make_support::rustc;
+
+fn compile(relro_level: &str) {
+    rustc().arg(format!("-Crelro-level={relro_level}")).input("hello.rs").run();
+}
+
+fn main() {
+    // Ensure that binaries built with the full relro level links them with both
+    // RELRO and BIND_NOW for doing eager symbol resolving.
+
+    compile("full");
+    llvm_readobj().program_headers().input("hello").run().assert_stdout_contains("GNU_RELRO");
+    llvm_readobj().dynamic_table().input("hello").run().assert_stdout_contains("BIND_NOW");
+
+    compile("partial");
+    llvm_readobj().program_headers().input("hello").run().assert_stdout_contains("GNU_RELRO");
+
+    // Ensure that we're *not* built with RELRO when setting it to off.  We do
+    // not want to check for BIND_NOW however, as the linker might have that
+    // enabled by default.
+    compile("off");
+    llvm_readobj().program_headers().input("hello").run().assert_stdout_not_contains("GNU_RELRO");
+}