Add phonies as provider instead of updaing a global map.

Bug: 358425833
Test: Manually compare the generated mk and ninja files.
Change-Id: Ie74b620fc680ca2fc0d7836e88361ab3bdb87c49

android/phony.go

@@ -26,14 +26,20 @@ type phonyMap map[string]Paths
 
 var phonyMapLock sync.Mutex
 
-func getPhonyMap(config Config) phonyMap {
+type ModulePhonyInfo struct {
+	Phonies map[string]Paths
+}
+
+var ModulePhonyProvider = blueprint.NewProvider[ModulePhonyInfo]()
+
+func getSingletonPhonyMap(config Config) phonyMap {
 	return config.Once(phonyMapOnceKey, func() interface{} {
 		return make(phonyMap)
 	}).(phonyMap)
 }
 
-func addPhony(config Config, name string, deps ...Path) {
-	phonyMap := getPhonyMap(config)
+func addSingletonPhony(config Config, name string, deps ...Path) {
+	phonyMap := getSingletonPhonyMap(config)
 	phonyMapLock.Lock()
 	defer phonyMapLock.Unlock()
 	phonyMap[name] = append(phonyMap[name], deps...)
@@ -47,7 +53,15 @@ type phonySingleton struct {
 var _ SingletonMakeVarsProvider = (*phonySingleton)(nil)
 
 func (p *phonySingleton) GenerateBuildActions(ctx SingletonContext) {
-	p.phonyMap = getPhonyMap(ctx.Config())
+	p.phonyMap = getSingletonPhonyMap(ctx.Config())
+	ctx.VisitAllModules(func(m Module) {
+		if info, ok := OtherModuleProvider(ctx, m, ModulePhonyProvider); ok {
+			for k, v := range info.Phonies {
+				p.phonyMap[k] = append(p.phonyMap[k], v...)
+			}
+		}
+	})
+
 	p.phonyList = SortedKeys(p.phonyMap)
 	for _, phony := range p.phonyList {
 		p.phonyMap[phony] = SortedUniquePaths(p.phonyMap[phony])