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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 (
- "android/soong/android"
- "android/soong/genrule"
- )
- // sdkMutator sets a creates a platform and an SDK variant for modules
- // that set sdk_version, and ignores sdk_version for the platform
- // variant. The SDK variant will be used for embedding in APKs
- // that may be installed on older platforms. Apexes use their own
- // variants that enforce backwards compatibility.
- func sdkMutator(ctx android.BottomUpMutatorContext) {
- if ctx.Os() != android.Android {
- return
- }
- switch m := ctx.Module().(type) {
- case LinkableInterface:
- ccModule, isCcModule := ctx.Module().(*Module)
- if m.AlwaysSdk() {
- if !m.UseSdk() && !m.SplitPerApiLevel() {
- ctx.ModuleErrorf("UseSdk() must return true when AlwaysSdk is set, did the factory forget to set Sdk_version?")
- }
- modules := ctx.CreateVariations("sdk")
- modules[0].(*Module).Properties.IsSdkVariant = true
- } else if m.UseSdk() || m.SplitPerApiLevel() {
- modules := ctx.CreateVariations("", "sdk")
- // Clear the sdk_version property for the platform (non-SDK) variant so later code
- // doesn't get confused by it.
- modules[0].(*Module).Properties.Sdk_version = nil
- // Mark the SDK variant.
- modules[1].(*Module).Properties.IsSdkVariant = true
- if ctx.Config().UnbundledBuildApps() {
- // For an unbundled apps build, hide the platform variant from Make.
- modules[0].(*Module).Properties.HideFromMake = true
- modules[0].(*Module).Properties.PreventInstall = true
- } else {
- // For a platform build, mark the SDK variant so that it gets a ".sdk" suffix when
- // exposed to Make.
- modules[1].(*Module).Properties.SdkAndPlatformVariantVisibleToMake = true
- modules[1].(*Module).Properties.PreventInstall = true
- }
- ctx.AliasVariation("")
- } else if isCcModule && ccModule.isImportedApiLibrary() {
- apiLibrary, _ := ccModule.linker.(*apiLibraryDecorator)
- if apiLibrary.hasNDKStubs() && ccModule.canUseSdk() {
- variations := []string{"sdk"}
- if apiLibrary.hasApexStubs() {
- variations = append(variations, "")
- }
- // Handle cc_api_library module with NDK stubs and variants only which can use SDK
- modules := ctx.CreateVariations(variations...)
- // Mark the SDK variant.
- modules[0].(*Module).Properties.IsSdkVariant = true
- if ctx.Config().UnbundledBuildApps() {
- if apiLibrary.hasApexStubs() {
- // For an unbundled apps build, hide the platform variant from Make.
- modules[1].(*Module).Properties.HideFromMake = true
- }
- modules[1].(*Module).Properties.PreventInstall = true
- } else {
- // For a platform build, mark the SDK variant so that it gets a ".sdk" suffix when
- // exposed to Make.
- modules[0].(*Module).Properties.SdkAndPlatformVariantVisibleToMake = true
- // SDK variant is not supposed to be installed
- modules[0].(*Module).Properties.PreventInstall = true
- }
- } else {
- ccModule.Properties.Sdk_version = nil
- ctx.CreateVariations("")
- ctx.AliasVariation("")
- }
- } else {
- if isCcModule {
- // Clear the sdk_version property for modules that don't have an SDK variant so
- // later code doesn't get confused by it.
- ccModule.Properties.Sdk_version = nil
- }
- ctx.CreateVariations("")
- ctx.AliasVariation("")
- }
- case *genrule.Module:
- if p, ok := m.Extra.(*GenruleExtraProperties); ok {
- if String(p.Sdk_version) != "" {
- ctx.CreateVariations("", "sdk")
- } else {
- ctx.CreateVariations("")
- }
- ctx.AliasVariation("")
- }
- case *snapshotModule:
- ctx.CreateVariations("")
- case *CcApiVariant:
- ccApiVariant, _ := ctx.Module().(*CcApiVariant)
- if String(ccApiVariant.properties.Variant) == "ndk" {
- ctx.CreateVariations("sdk")
- } else {
- ctx.CreateVariations("")
- }
- }
- }
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