1// Copyright 2020 Google Inc. All rights reserved. 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 android 16 17import ( 18 "sync" 19 20 "github.com/google/blueprint" 21) 22 23var phonyMapOnceKey = NewOnceKey("phony") 24 25type phonyMap map[string]Paths 26 27var phonyMapLock sync.Mutex 28 29func getPhonyMap(config Config) phonyMap { 30 return config.Once(phonyMapOnceKey, func() interface{} { 31 return make(phonyMap) 32 }).(phonyMap) 33} 34 35func addPhony(config Config, name string, deps ...Path) { 36 phonyMap := getPhonyMap(config) 37 phonyMapLock.Lock() 38 defer phonyMapLock.Unlock() 39 phonyMap[name] = append(phonyMap[name], deps...) 40} 41 42type phonySingleton struct { 43 phonyMap phonyMap 44 phonyList []string 45} 46 47var _ SingletonMakeVarsProvider = (*phonySingleton)(nil) 48 49func (p *phonySingleton) GenerateBuildActions(ctx SingletonContext) { 50 p.phonyMap = getPhonyMap(ctx.Config()) 51 p.phonyList = SortedStringKeys(p.phonyMap) 52 for _, phony := range p.phonyList { 53 p.phonyMap[phony] = SortedUniquePaths(p.phonyMap[phony]) 54 } 55 56 if !ctx.Config().KatiEnabled() { 57 for _, phony := range p.phonyList { 58 ctx.Build(pctx, BuildParams{ 59 Rule: blueprint.Phony, 60 Outputs: []WritablePath{PathForPhony(ctx, phony)}, 61 Implicits: p.phonyMap[phony], 62 }) 63 } 64 } 65} 66 67func (p phonySingleton) MakeVars(ctx MakeVarsContext) { 68 for _, phony := range p.phonyList { 69 ctx.Phony(phony, p.phonyMap[phony]...) 70 } 71} 72 73func phonySingletonFactory() Singleton { 74 return &phonySingleton{} 75} 76