The status of stacks # During the WAMR executes a Wasm function, there will be a Wasm stack created and used. For interpreter mode, as the Wasm functions intercall, the Wasm stack frames will grow, while the native stack keeps unchanged. When the Wasm calls into a imported native function and the native function then call into some Wasm function, the native stack will add a frame, and an empty frame will be inserted into wasm stack to indicate the function is imported from native.