Add GN Build Files and Custom Modifications

Issue:https://gitee.com/openharmony/build/issues/I6UFTP
Signed-off-by: lubinglun <lubinglun@huawei.com>

BUILD.gn

@@ -0,0 +1,30 @@
+# Copyright (c) 2023 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build/ohos.gni")
+
+ohos_cargo_crate("lib") {
+  crate_name = "log"
+  crate_type = "rlib"
+  crate_root = "src/lib.rs"
+
+  sources = [ "src/lib.rs" ]
+  edition = "2015"
+  cargo_pkg_version = "0.4.17"
+  cargo_pkg_authors = "The Rust Project Developers"
+  cargo_pkg_name = "log"
+  features = [ "std" ]
+  deps = [ "//third_party/rust/crates/cfg-if:lib" ]
+  build_root = "build.rs"
+  build_sources = [ "build.rs" ]
+}

src/lib.rs

@@ -316,6 +316,7 @@
     html_favicon_url = "https://www.rust-lang.org/favicon.ico",
     html_root_url = "https://docs.rs/log/0.4.17"
 )]
+#![allow(clippy::derive_hash_xor_eq)]
 #![warn(missing_docs)]
 #![deny(missing_debug_implementations, unconditional_recursion)]
 #![cfg_attr(all(not(feature = "std"), not(test)), no_std)]