Auto merge of #79883 - frewsxcv:frewsxcv-san, r=shepmaster

Enable ASan, TSan, UBSan for aarch64-apple-darwin.

I confirmed ASan, TSan, UBSan all work for me locally with `clang` on my new Macbook Air.

~This requires rust-lang/llvm-project#86

Author: bors

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -895,7 +895,7 @@ fn link_sanitizer_runtime(sess: &Session, linker: &mut dyn Linker, name: &str) {
         .unwrap_or_default();
 
     match sess.opts.target_triple.triple() {
-        "x86_64-apple-darwin" => {
+        "aarch64-apple-darwin" | "x86_64-apple-darwin" => {
             // On Apple platforms, the sanitizer is always built as a dylib, and
             // LLVM will link to `@rpath/*.dylib`, so we need to specify an
             // rpath to the library as well (the rpath should be absolute, see

compiler/rustc_session/src/session.rs

@@ -1522,18 +1522,24 @@ fn validate_commandline_args_with_session_available(sess: &Session) {
     }
 
     const ASAN_SUPPORTED_TARGETS: &[&str] = &[
+        "aarch64-apple-darwin",
         "aarch64-fuchsia",
         "aarch64-unknown-linux-gnu",
         "x86_64-apple-darwin",
         "x86_64-fuchsia",
         "x86_64-unknown-freebsd",
         "x86_64-unknown-linux-gnu",
     ];
-    const LSAN_SUPPORTED_TARGETS: &[&str] =
-        &["aarch64-unknown-linux-gnu", "x86_64-apple-darwin", "x86_64-unknown-linux-gnu"];
+    const LSAN_SUPPORTED_TARGETS: &[&str] = &[
+        "aarch64-apple-darwin",
+        "aarch64-unknown-linux-gnu",
+        "x86_64-apple-darwin",
+        "x86_64-unknown-linux-gnu",
+    ];
     const MSAN_SUPPORTED_TARGETS: &[&str] =
         &["aarch64-unknown-linux-gnu", "x86_64-unknown-freebsd", "x86_64-unknown-linux-gnu"];
     const TSAN_SUPPORTED_TARGETS: &[&str] = &[
+        "aarch64-apple-darwin",
         "aarch64-unknown-linux-gnu",
         "x86_64-apple-darwin",
         "x86_64-unknown-freebsd",

src/bootstrap/compile.rs

@@ -356,15 +356,12 @@ fn copy_sanitizers(
         let dst = libdir.join(&runtime.name);
         builder.copy(&runtime.path, &dst);
 
-        if target == "x86_64-apple-darwin" {
-            // Update the library install name reflect the fact it has been renamed.
-            let status = Command::new("install_name_tool")
-                .arg("-id")
-                .arg(format!("@rpath/{}", runtime.name))
-                .arg(&dst)
-                .status()
-                .expect("failed to execute `install_name_tool`");
-            assert!(status.success());
+        if target == "x86_64-apple-darwin" || target == "aarch64-apple-darwin" {
+            // Update the library’s install name to reflect that it has has been renamed.
+            apple_darwin_update_library_name(&dst, &format!("@rpath/{}", &runtime.name));
+            // Upon renaming the install name, the code signature of the file will invalidate,
+            // so we will sign it again.
+            apple_darwin_sign_file(&dst);
         }
 
         target_deps.push(dst);
@@ -373,6 +370,27 @@ fn copy_sanitizers(
     target_deps
 }
 
+fn apple_darwin_update_library_name(library_path: &Path, new_name: &str) {
+    let status = Command::new("install_name_tool")
+        .arg("-id")
+        .arg(new_name)
+        .arg(library_path)
+        .status()
+        .expect("failed to execute `install_name_tool`");
+    assert!(status.success());
+}
+
+fn apple_darwin_sign_file(file_path: &Path) {
+    let status = Command::new("codesign")
+        .arg("-f") // Force to rewrite the existing signature
+        .arg("-s")
+        .arg("-")
+        .arg(file_path)
+        .status()
+        .expect("failed to execute `codesign`");
+    assert!(status.success());
+}
+
 #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
 pub struct StartupObjects {
     pub compiler: Compiler,

src/bootstrap/native.rs

@@ -802,6 +802,7 @@ fn supported_sanitizers(
     };
 
     match &*target.triple {
+        "aarch64-apple-darwin" => darwin_libs("osx", &["asan", "lsan", "tsan"]),
         "aarch64-fuchsia" => common_libs("fuchsia", "aarch64", &["asan"]),
         "aarch64-unknown-linux-gnu" => {
             common_libs("linux", "aarch64", &["asan", "lsan", "msan", "tsan"])

src/doc/unstable-book/src/compiler-flags/sanitizer.md

@@ -31,7 +31,12 @@ with runtime flag `ASAN_OPTIONS=detect_leaks=1` on macOS.
 
 AddressSanitizer is supported on the following targets:
 
+* `aarch64-apple-darwin`
+* `aarch64-fuchsia`
+* `aarch64-unknown-linux-gnu`
 * `x86_64-apple-darwin`
+* `x86_64-fuchsia`
+* `x86_64-unknown-freebsd`
 * `x86_64-unknown-linux-gnu`
 
 AddressSanitizer works with non-instrumented code although it will impede its
@@ -169,10 +174,26 @@ Shadow byte legend (one shadow byte represents 8 application bytes):
 ==39249==ABORTING
 ```
 
+# LeakSanitizer
+
+LeakSanitizer is run-time memory leak detector.
+
+LeakSanitizer is supported on the following targets:
+
+* `aarch64-apple-darwin`
+* `aarch64-unknown-linux-gnu`
+* `x86_64-apple-darwin`
+* `x86_64-unknown-linux-gnu`
+
 # MemorySanitizer
 
-MemorySanitizer is detector of uninitialized reads. It is only supported on the
-`x86_64-unknown-linux-gnu` target.
+MemorySanitizer is detector of uninitialized reads.
+
+MemorySanitizer is supported on the following targets:
+
+* `aarch64-unknown-linux-gnu`
+* `x86_64-unknown-freebsd`
+* `x86_64-unknown-linux-gnu`
 
 MemorySanitizer requires all program code to be instrumented. C/C++ dependencies
 need to be recompiled using Clang with `-fsanitize=memory` option. Failing to
@@ -219,7 +240,10 @@ $ cargo run -Zbuild-std --target x86_64-unknown-linux-gnu
 ThreadSanitizer is a data race detection tool. It is supported on the following
 targets:
 
+* `aarch64-apple-darwin`
+* `aarch64-unknown-linux-gnu`
 * `x86_64-apple-darwin`
+* `x86_64-unknown-freebsd`
 * `x86_64-unknown-linux-gnu`
 
 To work correctly ThreadSanitizer needs to be "aware" of all synchronization

src/test/codegen/sanitizer-no-sanitize.rs

@@ -1,4 +1,4 @@
-// Verifies that no_sanitze attribute can be used to
+// Verifies that no_sanitize attribute can be used to
 // selectively disable sanitizer instrumentation.
 //
 // needs-sanitizer-address

src/test/ui/sanitize/unsupported-target.stderr

@@ -1,4 +1,4 @@
-error: `-Zsanitizer=leak` only works with targets: aarch64-unknown-linux-gnu, x86_64-apple-darwin, x86_64-unknown-linux-gnu
+error: `-Zsanitizer=leak` only works with targets: aarch64-apple-darwin, aarch64-unknown-linux-gnu, x86_64-apple-darwin, x86_64-unknown-linux-gnu
 
 error: aborting due to previous error
 

src/tools/compiletest/src/util.rs

@@ -82,6 +82,7 @@ const ARCH_TABLE: &[(&str, &str)] = &[
 ];
 
 pub const ASAN_SUPPORTED_TARGETS: &[&str] = &[
+    "aarch64-apple-darwin",
     "aarch64-fuchsia",
     "aarch64-unknown-linux-gnu",
     "x86_64-apple-darwin",
@@ -90,13 +91,18 @@ pub const ASAN_SUPPORTED_TARGETS: &[&str] = &[
     "x86_64-unknown-linux-gnu",
 ];
 
-pub const LSAN_SUPPORTED_TARGETS: &[&str] =
-    &["aarch64-unknown-linux-gnu", "x86_64-apple-darwin", "x86_64-unknown-linux-gnu"];
+pub const LSAN_SUPPORTED_TARGETS: &[&str] = &[
+    "aarch64-apple-darwin",
+    "aarch64-unknown-linux-gnu",
+    "x86_64-apple-darwin",
+    "x86_64-unknown-linux-gnu",
+];
 
 pub const MSAN_SUPPORTED_TARGETS: &[&str] =
     &["aarch64-unknown-linux-gnu", "x86_64-unknown-freebsd", "x86_64-unknown-linux-gnu"];
 
 pub const TSAN_SUPPORTED_TARGETS: &[&str] = &[
+    "aarch64-apple-darwin",
     "aarch64-unknown-linux-gnu",
     "x86_64-apple-darwin",
     "x86_64-unknown-freebsd",