1 files changed, 20 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs b/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs
new file mode 100644
index 000000000..162b091b2
--- /dev/null
+++ b/compiler/rustc_target/src/spec/aarch64_unknown_uefi.rs
@@ -0,0 +1,20 @@
+// This defines the aarch64 target for UEFI systems as described in the UEFI specification. See the
+// uefi-base module for generic UEFI options.
+
+use super::uefi_msvc_base;
+use crate::spec::{LinkerFlavor, Target};
+
+pub fn target() -> Target {
+    let mut base = uefi_msvc_base::opts();
+
+    base.max_atomic_width = Some(64);
+    base.add_pre_link_args(LinkerFlavor::Msvc, &["/machine:arm64"]);
+
+    Target {
+        llvm_target: "aarch64-unknown-windows".into(),
+        pointer_width: 64,
+        data_layout: "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128".into(),
+        arch: "aarch64".into(),
+        options: base,
+    }
+}