Rollup merge of #130068 - madsmtm:deployment-target-test, r=jieyouxu

Test codegen when setting deployment target

Test our codegen in different scenarios when setting the deployment target. There are many places here where this is still incorrect, these will be fixed in https://github.com/rust-lang/rust/pull/129342, https://github.com/rust-lang/rust/pull/129367 and https://github.com/rust-lang/rust/pull/129369. See https://github.com/rust-lang/rust/issues/129432 for the bigger picture.

Tested locally using:
```console
./x test tests/run-make/apple-deployment-target --target="aarch64-apple-darwin,aarch64-apple-ios,aarch64-apple-ios-macabi,aarch64-apple-ios-sim,aarch64-apple-tvos,aarch64-apple-tvos-sim,aarch64-apple-visionos,aarch64-apple-visionos-sim,aarch64-apple-watchos,aarch64-apple-watchos-sim,arm64_32-apple-watchos,armv7s-apple-ios,i386-apple-ios,x86_64-apple-darwin,x86_64-apple-ios,x86_64-apple-ios-macabi,x86_64-apple-tvos,x86_64-apple-watchos-sim,x86_64h-apple-darwin"
```

The only Apple targets that aren't tested by the above command are:
- `arm64e-apple-darwin`, failed to build, see https://github.com/rust-lang/cc-rs/issues/1205.
- `armv7k-apple-watchos`, failed to link, see https://github.com/rust-lang/rust/issues/130071.
- `arm64e-apple-ios`, failed to link, see https://github.com/rust-lang/rust/issues/130085.
- `i686-apple-darwin`, requires a bit of setup and an older machine, see [the docs](https://doc.rust-lang.org/nightly/rustc/platform-support/i686-apple-darwin.html).
- `i386-apple-ios` requires you to set `IPHONEOS_DEPLOYMENT_TARGET=10.0` for the test helpers to work, will be fixed by https://github.com/rust-lang/cc-rs/issues/1030.

But all of this is as it was before this PR.

Fixes https://github.com/rust-lang/rust/issues/47825, since we now have a test that compiles a `dylib` for `aarch64-apple-ios`.

Split out from https://github.com/rust-lang/rust/pull/129342, see that for a little bit of the review that this has gone through already.

r? petrochenkov

```@rustbot``` label O-apple

3 files changed, 19 insertions, 2 deletions

diff --git a/src/tools/run-make-support/src/lib.rs b/src/tools/run-make-support/src/lib.rs
index fefafb95b33..980bd37dca8 100644
--- a/src/tools/run-make-support/src/lib.rs
+++ b/src/tools/run-make-support/src/lib.rs
@@ -73,7 +73,7 @@ pub use env::{env_var, env_var_os, set_current_dir};
 pub use run::{cmd, run, run_fail, run_with_args};
 
 /// Helpers for checking target information.
-pub use targets::{is_darwin, is_msvc, is_windows, llvm_components_contain, target, uname};
+pub use targets::{is_darwin, is_msvc, is_windows, llvm_components_contain, target, uname, apple_os};
 
 /// Helpers for building names of output artifacts that are potentially target-specific.
 pub use artifact_names::{
diff --git a/src/tools/run-make-support/src/targets.rs b/src/tools/run-make-support/src/targets.rs
index 5dcb0b83430..896abb73fc1 100644
--- a/src/tools/run-make-support/src/targets.rs
+++ b/src/tools/run-make-support/src/targets.rs
@@ -28,6 +28,24 @@ pub fn is_darwin() -> bool {
     target().contains("darwin")
 }
 
+/// Get the target OS on Apple operating systems.
+#[must_use]
+pub fn apple_os() -> &'static str {
+    if target().contains("darwin") {
+        "macos"
+    } else if target().contains("ios") {
+        "ios"
+    } else if target().contains("tvos") {
+        "tvos"
+    } else if target().contains("watchos") {
+        "watchos"
+    } else if target().contains("visionos") {
+        "visionos"
+    } else {
+        panic!("not an Apple OS")
+    }
+}
+
 /// Check if `component` is within `LLVM_COMPONENTS`
 #[must_use]
 pub fn llvm_components_contain(component: &str) -> bool {
diff --git a/src/tools/tidy/src/allowed_run_make_makefiles.txt b/src/tools/tidy/src/allowed_run_make_makefiles.txt
index 22d1e93bf39..50d21c7ed4c 100644
--- a/src/tools/tidy/src/allowed_run_make_makefiles.txt
+++ b/src/tools/tidy/src/allowed_run_make_makefiles.txt
@@ -6,7 +6,6 @@ run-make/incr-add-rust-src-component/Makefile
 run-make/issue-84395-lto-embed-bitcode/Makefile
 run-make/jobserver-error/Makefile
 run-make/libs-through-symlinks/Makefile
-run-make/macos-deployment-target/Makefile
 run-make/split-debuginfo/Makefile
 run-make/symbol-mangling-hashed/Makefile
 run-make/translation/Makefile