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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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