1// Copyright (C) 2019 The Android Open Source Project 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package cc 16 17import ( 18 "sync" 19 20 "android/soong/android" 21) 22 23type syspropLibraryInterface interface { 24 BaseModuleName() string 25 CcModuleName() string 26} 27 28var ( 29 syspropImplLibrariesKey = android.NewOnceKey("syspropImplLibirares") 30 syspropImplLibrariesLock sync.Mutex 31) 32 33func syspropImplLibraries(config android.Config) map[string]string { 34 return config.Once(syspropImplLibrariesKey, func() interface{} { 35 return make(map[string]string) 36 }).(map[string]string) 37} 38 39// gather list of sysprop libraries 40func SyspropMutator(mctx android.BottomUpMutatorContext) { 41 if m, ok := mctx.Module().(syspropLibraryInterface); ok { 42 syspropImplLibraries := syspropImplLibraries(mctx.Config()) 43 syspropImplLibrariesLock.Lock() 44 defer syspropImplLibrariesLock.Unlock() 45 46 syspropImplLibraries[m.BaseModuleName()] = m.CcModuleName() 47 } 48} 49