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 cc 16 17import ( 18 "sort" 19 "strings" 20 21 "android/soong/android" 22) 23 24func init() { 25 // Use singleton type to gather all generated soong modules. 26 android.RegisterParallelSingletonType("stublibraries", stubLibrariesSingleton) 27} 28 29type stubLibraries struct { 30 stubLibraryMap map[string]bool 31 stubVendorLibraryMap map[string]bool 32 33 apiListCoverageXmlPaths []string 34} 35 36// Check if the module defines stub, or itself is stub 37func IsStubTarget(m *Module) bool { 38 return m.IsStubs() || m.HasStubsVariants() 39} 40 41// Get target file name to be installed from this module 42func getInstalledFileName(ctx android.SingletonContext, m *Module) string { 43 for _, ps := range android.OtherModuleProviderOrDefault( 44 ctx, m.Module(), android.InstallFilesProvider).PackagingSpecs { 45 if name := ps.FileName(); name != "" { 46 return name 47 } 48 } 49 return "" 50} 51 52func (s *stubLibraries) GenerateBuildActions(ctx android.SingletonContext) { 53 // Visit all generated soong modules and store stub library file names. 54 ctx.VisitAllModules(func(module android.Module) { 55 if m, ok := module.(*Module); ok { 56 if IsStubTarget(m) { 57 if name := getInstalledFileName(ctx, m); name != "" { 58 s.stubLibraryMap[name] = true 59 if m.InVendor() { 60 s.stubVendorLibraryMap[name] = true 61 } 62 } 63 } 64 if m.library != nil && android.IsModulePreferred(m) { 65 if p := m.library.getAPIListCoverageXMLPath().String(); p != "" { 66 s.apiListCoverageXmlPaths = append(s.apiListCoverageXmlPaths, p) 67 } 68 } 69 } 70 }) 71} 72 73func stubLibrariesSingleton() android.Singleton { 74 return &stubLibraries{ 75 stubLibraryMap: make(map[string]bool), 76 stubVendorLibraryMap: make(map[string]bool), 77 } 78} 79 80func (s *stubLibraries) MakeVars(ctx android.MakeVarsContext) { 81 // Convert stub library file names into Makefile variable. 82 ctx.Strict("STUB_LIBRARIES", strings.Join(android.SortedKeys(s.stubLibraryMap), " ")) 83 ctx.Strict("SOONG_STUB_VENDOR_LIBRARIES", strings.Join(android.SortedKeys(s.stubVendorLibraryMap), " ")) 84 85 // Export the list of API XML files to Make. 86 sort.Strings(s.apiListCoverageXmlPaths) 87 ctx.Strict("SOONG_CC_API_XML", strings.Join(s.apiListCoverageXmlPaths, " ")) 88} 89