scripts: Initialize lib and define supported archs

Define `SUPPORT_ARCHS` (x86_64, arm64, riscv) and `MAP_RUST_ARCH` to map
arch name used by kernel to arch name understandable by Rust.

Signed-off-by: Ruoqing He <[email protected]>

Author: RuoqingHe

scripts/lib/__init__.py

@@ -0,0 +1,8 @@
+# Copyright 2025 © Institute of Software, CAS. All rights reserved.
+# SPDX-License-Identifier: Apache-2.0
+
+# Supported architectures (arch used in kernel)
+SUPPORT_ARCHS = ["arm64", "x86_64", "riscv"]
+
+# Map arch used in linux kernel to arch understandable for Rust
+MAP_RUST_ARCH = {"arm64": "aarch64", "x86_64": "x86_64", "riscv": "riscv64"}