1 files changed, 22 insertions, 0 deletions
diff --git a/vendor/compiler_builtins/src/aarch64.rs b/vendor/compiler_builtins/src/aarch64.rs
new file mode 100644
index 000000000..e5747d525
--- /dev/null
+++ b/vendor/compiler_builtins/src/aarch64.rs
@@ -0,0 +1,22 @@
+#![allow(unused_imports)]
+
+use core::intrinsics;
+
+intrinsics! {
+    #[naked]
+    #[cfg(all(target_os = "uefi", not(feature = "no-asm")))]
+    pub unsafe extern "C" fn __chkstk() {
+        core::arch::asm!(
+            ".p2align 2",
+            "lsl    x16, x15, #4",
+            "mov    x17, sp",
+            "1:",
+            "sub    x17, x17, 4096",
+            "subs   x16, x16, 4096",
+            "ldr    xzr, [x17]",
+            "b.gt   1b",
+            "ret",
+            options(noreturn)
+        );
+    }
+}