platform_build_soong/cc/library_headers.go

// Copyright 2020 Google Inc. All rights reserved.
//
// 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.

package cc

import "android/soong/android"

func init() {
	RegisterLibraryHeadersBuildComponents(android.InitRegistrationContext)

	// Register sdk member types.
	android.RegisterSdkMemberType(headersLibrarySdkMemberType)
}

var headersLibrarySdkMemberType = &librarySdkMemberType{
	SdkMemberTypeBase: android.SdkMemberTypeBase{
		PropertyName: "native_header_libs",
		SupportsSdk:  true,
	},
	prebuiltModuleType: "cc_prebuilt_library_headers",
	noOutputFiles:      true,
}

func RegisterLibraryHeadersBuildComponents(ctx android.RegistrationContext) {
	ctx.RegisterModuleType("cc_library_headers", LibraryHeaderFactory)
	ctx.RegisterModuleType("cc_prebuilt_library_headers", prebuiltLibraryHeaderFactory)
}

// cc_library_headers contains a set of c/c++ headers which are imported by
// other soong cc modules using the header_libs property. For best practices,
// use export_include_dirs property or LOCAL_EXPORT_C_INCLUDE_DIRS for
// Make.
func LibraryHeaderFactory() android.Module {
	module, library := NewLibrary(android.HostAndDeviceSupported)
	library.HeaderOnly()
	module.sdkMemberTypes = []android.SdkMemberType{headersLibrarySdkMemberType}
	return module.Init()
}

// cc_prebuilt_library_headers is a prebuilt version of cc_library_headers
func prebuiltLibraryHeaderFactory() android.Module {
	module, library := NewPrebuiltLibrary(android.HostAndDeviceSupported)
	library.HeaderOnly()
	return module.Init()
}