freebsd arm64 add supported sanitizers.

Author: devnexen

compiler/rustc_target/src/spec/aarch64_unknown_freebsd.rs

@@ -1,11 +1,17 @@
-use crate::spec::{Target, TargetOptions};
+use crate::spec::{SanitizerSet, Target, TargetOptions};
 
 pub fn target() -> Target {
     Target {
         llvm_target: "aarch64-unknown-freebsd".to_string(),
         pointer_width: 64,
         data_layout: "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128".to_string(),
         arch: "aarch64".to_string(),
-        options: TargetOptions { max_atomic_width: Some(128), ..super::freebsd_base::opts() },
+        options: TargetOptions {
+            max_atomic_width: Some(128),
+            supported_sanitizers: SanitizerSet::ADDRESS
+                | SanitizerSet::MEMORY
+                | SanitizerSet::THREAD,
+            ..super::freebsd_base::opts()
+        },
     }
 }