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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 (
"sort"
"strings"
"android/soong/android"
)
func init() {
// Use singleton type to gather all generated soong modules.
android.RegisterParallelSingletonType("stublibraries", stubLibrariesSingleton)
}
func stubLibrariesSingleton() android.Singleton {
return &stubLibraries{}
}
type stubLibraries struct {
stubLibraries []string
vendorStubLibraries []string
apiListCoverageXmlPaths []string
}
// Check if the module defines stub, or itself is stub
func IsStubTarget(info *LinkableInfo) bool {
return info != nil && (info.IsStubs || info.HasStubsVariants)
}
// Get target file name to be installed from this module
func getInstalledFileName(ctx android.SingletonContext, m android.ModuleProxy) string {
for _, ps := range android.OtherModuleProviderOrDefault(
ctx, m, android.InstallFilesProvider).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.
stubLibraryMap := make(map[string]bool)
vendorStubLibraryMap := make(map[string]bool)
ctx.VisitAllModuleProxies(func(module android.ModuleProxy) {
if linkableInfo, ok := android.OtherModuleProvider(ctx, module, LinkableInfoProvider); ok {
if IsStubTarget(linkableInfo) {
if name := getInstalledFileName(ctx, module); name != "" {
stubLibraryMap[name] = true
if linkableInfo.InVendor {
vendorStubLibraryMap[name] = true
}
}
}
if linkableInfo.CcLibraryInterface && android.IsModulePreferredProxy(ctx, module) {
if p := linkableInfo.APIListCoverageXMLPath.String(); p != "" {
s.apiListCoverageXmlPaths = append(s.apiListCoverageXmlPaths, p)
}
}
}
})
s.stubLibraries = android.SortedKeys(stubLibraryMap)
s.vendorStubLibraries = android.SortedKeys(vendorStubLibraryMap)
android.WriteFileRule(ctx, StubLibrariesFile(ctx), strings.Join(s.stubLibraries, " "))
}
func StubLibrariesFile(ctx android.PathContext) android.WritablePath {
return android.PathForIntermediates(ctx, "stub_libraries.txt")
}
func (s *stubLibraries) MakeVars(ctx android.MakeVarsContext) {
// Convert stub library file names into Makefile variable.
ctx.Strict("STUB_LIBRARIES", strings.Join(s.stubLibraries, " "))
ctx.Strict("SOONG_STUB_VENDOR_LIBRARIES", strings.Join(s.vendorStubLibraries, " "))
// Export the list of API XML files to Make.
sort.Strings(s.apiListCoverageXmlPaths)
ctx.Strict("SOONG_CC_API_XML", strings.Join(s.apiListCoverageXmlPaths, " "))
}
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