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// 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 (
"strings"
"android/soong/android"
)
func init() {
// Use singleton type to gather all generated soong modules.
android.RegisterSingletonType("stublibraries", stubLibrariesSingleton)
}
type stubLibraries struct {
stubLibraryMap map[string]bool
}
// Check if the module defines stub, or itself is stub
func IsStubTarget(m *Module) bool {
return m.IsStubs() || m.HasStubsVariants()
}
// Get target file name to be installed from this module
func getInstalledFileName(m *Module) string {
for _, ps := range m.PackagingSpecs() {
if name := ps.FileName(); name != "" {
return name
}
}
return ""
}
func (s *stubLibraries) GenerateBuildActions(ctx android.SingletonContext) {
// Visit all generated soong modules and store stub library file names.
ctx.VisitAllModules(func(module android.Module) {
if m, ok := module.(*Module); ok {
if IsStubTarget(m) {
if name := getInstalledFileName(m); name != "" {
s.stubLibraryMap[name] = true
}
}
}
})
}
func stubLibrariesSingleton() android.Singleton {
return &stubLibraries{
stubLibraryMap: make(map[string]bool),
}
}
func (s *stubLibraries) MakeVars(ctx android.MakeVarsContext) {
// Convert stub library file names into Makefile variable.
ctx.Strict("STUB_LIBRARIES", strings.Join(android.SortedStringKeys(s.stubLibraryMap), " "))
}