Auto merge of rust-lang#126712 - Oneirical:bootest-constestllation, r…

…=<try>

Migrate `relocation-model`, `error-writing-dependencies` and `crate-name-priority` `run-make` tests to rmake

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

Needs MSVC try-job due to rust-lang#28026, almost guaranteed to fail, but let's see anyways.

try-job: aarch64-gnu
`/* try-job: x86_64-msvc */`
try-job: x86_64-apple-1
try-job: armhf-gnu
try-job: test-various

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -15,7 +15,6 @@ run-make/compiler-lookup-paths/Makefile
 run-make/compiler-rt-works-on-mingw/Makefile
 run-make/compressed-debuginfo/Makefile
 run-make/crate-hash-rustc-version/Makefile
-run-make/crate-name-priority/Makefile
 run-make/cross-lang-lto-clang/Makefile
 run-make/cross-lang-lto-pgo-smoketest/Makefile
 run-make/cross-lang-lto-upstream-rlibs/Makefile
@@ -33,7 +32,6 @@ run-make/emit-shared-files/Makefile
 run-make/emit-stack-sizes/Makefile
 run-make/emit-to-stdout/Makefile
 run-make/env-dep-info/Makefile
-run-make/error-writing-dependencies/Makefile
 run-make/export-executable-symbols/Makefile
 run-make/extern-diff-internal-name/Makefile
 run-make/extern-flag-disambiguates/Makefile
@@ -163,7 +161,6 @@ 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/relocation-model/Makefile
 run-make/relro-levels/Makefile
 run-make/remap-path-prefix-dwarf/Makefile
 run-make/remap-path-prefix/Makefile

tests/run-make/crate-name-priority/rmake.rs

@@ -0,0 +1,18 @@
+// The `crate_name` rustc flag should have higher priority
+// over `#![crate_name = "foo"]` defined inside the source code.
+// This test has a conflict between crate_names defined in the .rs files
+// and the compiler flags, and checks that the flag is favoured each time.
+// See https://github.com/rust-lang/rust/pull/15518
+
+use run_make_support::{bin_name, fs_wrapper, rustc};
+
+fn main() {
+    rustc().input("foo.rs").run();
+    fs_wrapper::remove_file(bin_name("foo"));
+    rustc().input("foo.rs").crate_name("bar").run();
+    fs_wrapper::remove_file(bin_name("bar"));
+    rustc().input("foo1.rs").run();
+    fs_wrapper::remove_file(bin_name("foo"));
+    rustc().input("foo1.rs").output(bin_name("bar1")).run();
+    fs_wrapper::remove_file(bin_name("bar1"));
+}

tests/run-make/error-writing-dependencies/rmake.rs

@@ -0,0 +1,17 @@
+// Invalid paths passed to rustc used to cause internal compilation errors
+// alongside an obscure error message. This was turned into a standard error,
+// and this test checks that the cleaner error message is printed instead.
+// See https://github.com/rust-lang/rust/issues/13517
+
+use run_make_support::rustc;
+
+// NOTE: This cannot be a UI test due to the --out-dir flag, which is
+// already present by default in UI testing.
+
+fn main() {
+    let out = rustc().input("foo.rs").emit("dep-info").out_dir("foo/bar/baz").run_fail();
+    // The error message should be informative.
+    out.assert_stderr_contains("error writing dependencies");
+    // The filename should appear.
+    out.assert_stderr_contains("baz");
+}

tests/run-make/relocation-model/rmake.rs

@@ -0,0 +1,26 @@
+// Generation of position-independent code (PIC) can be altered
+// through use of the -C relocation-model rustc flag. This test
+// uses varied values with this flag and checks that compilation
+// succeeds.
+// See https://github.com/rust-lang/rust/pull/13340
+
+//@ ignore-cross-compile
+
+use run_make_support::{run, rustc};
+
+fn main() {
+    // FIXME(Oneirical): This first one will likely fail on MSVC due to #28026.
+    // Remove this after try-job
+    rustc().arg("-Crelocation-model=static").input("foo.rs").run();
+    run("foo");
+    rustc().arg("-Crelocation-model=dynamic-no-pic").input("foo.rs").run();
+    run("foo");
+    rustc().arg("-Crelocation-model=default").input("foo.rs").run();
+    run("foo");
+    rustc()
+        .arg("-Crelocation-model=dynamic-no-pic")
+        .crate_type("dylib")
+        .emit("link,obj")
+        .input("foo.rs")
+        .run();
+}