1diff --git a/android/bindgen_cmd/Android.bp b/android/bindgen_cmd/Android.bp 2new file mode 100644 3index 0000000..689e7ae 4--- /dev/null 5+++ b/android/bindgen_cmd/Android.bp 6@@ -0,0 +1,28 @@ 7+package { 8+ // See: http://go/android-license-faq 9+ // A large-scale-change added 'default_applicable_licenses' to import 10+ // all of the 'license_kinds' from "external_rust_crates_bindgen_license" 11+ // to get the below license kinds: 12+ // SPDX-license-identifier-Apache-2.0 13+ default_applicable_licenses: ["external_rust_crates_bindgen_license"], 14+} 15+ 16+rust_library_host { 17+ name: "libbindgen_cmd", 18+ crate_name: "bindgen_cmd", 19+ srcs: ["src/lib.rs"], 20+ edition: "2018", 21+ features: [ 22+ "clap", 23+ "runtime", 24+ "which", 25+ "which-rustfmt", 26+ ], 27+ rustlibs: [ 28+ "libbindgen", 29+ "libbindgen_cli", 30+ "libclap", 31+ "libenv_logger", 32+ ], 33+ compile_multilib: "first", 34+} 35diff --git a/android/bindgen_cmd/src/lib.rs b/android/bindgen_cmd/src/lib.rs 36new file mode 100644 37index 0000000..d33da7f 38--- /dev/null 39+++ b/android/bindgen_cmd/src/lib.rs 40@@ -0,0 +1,50 @@ 41+// Copyright 2020, The Android Open Source Project 42+// 43+// Licensed under the Apache License, Version 2.0 (the "License"); 44+// you may not use this file except in compliance with the License. 45+// You may obtain a copy of the License at 46+// 47+// http://www.apache.org/licenses/LICENSE-2.0 48+// 49+// Unless required by applicable law or agreed to in writing, software 50+// distributed under the License is distributed on an "AS IS" BASIS, 51+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 52+// See the License for the specific language governing permissions and 53+// limitations under the License. 54+ 55+//! This is a helper crate for using bindgen as a library from within 56+//! Android's build system. Some functionality (such as the type selection 57+//! heuristic) is not available on the command line, and so the library 58+//! interface may be necessary. Bindgen also needs to receive configuration 59+//! from Soong however to find appropriate headers, set global cflags, etc. 60+//! 61+//! This crate provides the ability to run a hooked version of the command 62+//! line bindgen tool, with the ability to call a user-provided transformation 63+//! on the the builder before it is used. 64+ 65+use bindgen; 66+use bindgen_cli; 67+use std::env; 68+ 69+/// Takes in a function describing adjustments to make to a builder 70+/// initialized by the command line. `build(|x| x)` is equivalent to 71+/// running bindgen. When converting a build.rs, you will want to convert the 72+/// additional configuration they do into a function, then pass it to `build` 73+/// inside your main function. 74+pub fn build<C: FnOnce(bindgen::Builder) -> bindgen::Builder>(configure: C) { 75+ env_logger::init(); 76+ 77+ match bindgen_cli::builder_from_flags(env::args()) { 78+ Ok((builder, output, _)) => { 79+ configure(builder) 80+ .generate() 81+ .expect("Unable to generate bindings") 82+ .write(output) 83+ .expect("Unable to write output"); 84+ } 85+ Err(error) => { 86+ eprintln!("{}", error); 87+ std::process::exit(1); 88+ } 89+ }; 90+} 91