ngrc version works?

src/backend/runtime.rs

@@ -91,7 +91,14 @@ impl RuntimeFunctions {
     /// one; both to reduce the chance that they deviate, and to reduce overall
     /// maintenance burden.
     pub fn register_jit_implementations(builder: &mut JITBuilder) {
+        let allocation_pointer = unsafe {
+            std::alloc::alloc_zeroed(
+                std::alloc::Layout::from_size_align(1024 * 1024, 1024 * 1024)
+                    .expect("reasonable layout is reasonable"),
+            )
+        };
         builder.symbol("print", runtime_print as *const u8);
+        builder.symbol("__global_allocation_pointer__", allocation_pointer);
     }
 }