300 lines
11 KiB
Go
300 lines
11 KiB
Go
// Copyright 2021 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package java
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import (
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"fmt"
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"android/soong/android"
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"android/soong/dexpreopt"
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)
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func init() {
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registerPlatformBootclasspathBuildComponents(android.InitRegistrationContext)
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}
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func registerPlatformBootclasspathBuildComponents(ctx android.RegistrationContext) {
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ctx.RegisterModuleType("platform_bootclasspath", platformBootclasspathFactory)
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}
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// The tag used for the dependency between the platform bootclasspath and any configured boot jars.
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var platformBootclasspathModuleDepTag = bootclasspathDependencyTag{name: "module"}
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type platformBootclasspathModule struct {
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android.ModuleBase
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ClasspathFragmentBase
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properties platformBootclasspathProperties
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// The apex:module pairs obtained from the configured modules.
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//
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// Currently only for testing.
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configuredModules []android.Module
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// The apex:module pairs obtained from the fragments.
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//
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// Currently only for testing.
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fragments []android.Module
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// Path to the monolithic hiddenapi-flags.csv file.
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hiddenAPIFlagsCSV android.OutputPath
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// Path to the monolithic hiddenapi-index.csv file.
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hiddenAPIIndexCSV android.OutputPath
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// Path to the monolithic hiddenapi-unsupported.csv file.
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hiddenAPIMetadataCSV android.OutputPath
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}
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type platformBootclasspathProperties struct {
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BootclasspathFragmentsDepsProperties
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Hidden_api HiddenAPIFlagFileProperties
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}
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func platformBootclasspathFactory() android.Module {
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m := &platformBootclasspathModule{}
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m.AddProperties(&m.properties)
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// TODO(satayev): split systemserver and apex jars into separate configs.
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initClasspathFragment(m)
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android.InitAndroidArchModule(m, android.DeviceSupported, android.MultilibCommon)
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return m
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}
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var _ android.OutputFileProducer = (*platformBootclasspathModule)(nil)
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func (b *platformBootclasspathModule) AndroidMkEntries() (entries []android.AndroidMkEntries) {
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entries = append(entries, android.AndroidMkEntries{
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Class: "FAKE",
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// Need at least one output file in order for this to take effect.
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OutputFile: android.OptionalPathForPath(b.hiddenAPIFlagsCSV),
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Include: "$(BUILD_PHONY_PACKAGE)",
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})
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entries = append(entries, b.classpathFragmentBase().getAndroidMkEntries()...)
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return
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}
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// Make the hidden API files available from the platform-bootclasspath module.
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func (b *platformBootclasspathModule) OutputFiles(tag string) (android.Paths, error) {
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switch tag {
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case "hiddenapi-flags.csv":
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return android.Paths{b.hiddenAPIFlagsCSV}, nil
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case "hiddenapi-index.csv":
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return android.Paths{b.hiddenAPIIndexCSV}, nil
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case "hiddenapi-metadata.csv":
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return android.Paths{b.hiddenAPIMetadataCSV}, nil
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}
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return nil, fmt.Errorf("unknown tag %s", tag)
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}
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func (b *platformBootclasspathModule) DepsMutator(ctx android.BottomUpMutatorContext) {
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b.hiddenAPIDepsMutator(ctx)
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if SkipDexpreoptBootJars(ctx) {
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return
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}
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// Add a dependency onto the dex2oat tool which is needed for creating the boot image. The
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// path is retrieved from the dependency by GetGlobalSoongConfig(ctx).
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dexpreopt.RegisterToolDeps(ctx)
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}
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func (b *platformBootclasspathModule) hiddenAPIDepsMutator(ctx android.BottomUpMutatorContext) {
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if ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
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return
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}
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// Add dependencies onto the stub lib modules.
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sdkKindToStubLibModules := hiddenAPIComputeMonolithicStubLibModules(ctx.Config())
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hiddenAPIAddStubLibDependencies(ctx, sdkKindToStubLibModules)
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}
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func (b *platformBootclasspathModule) BootclasspathDepsMutator(ctx android.BottomUpMutatorContext) {
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// Add dependencies on all the modules configured in the "art" boot image.
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artImageConfig := genBootImageConfigs(ctx)[artBootImageName]
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addDependenciesOntoBootImageModules(ctx, artImageConfig.modules)
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// Add dependencies on all the modules configured in the "boot" boot image. That does not
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// include modules configured in the "art" boot image.
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bootImageConfig := b.getImageConfig(ctx)
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addDependenciesOntoBootImageModules(ctx, bootImageConfig.modules)
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// Add dependencies on all the updatable modules.
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updatableModules := dexpreopt.GetGlobalConfig(ctx).UpdatableBootJars
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addDependenciesOntoBootImageModules(ctx, updatableModules)
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// Add dependencies on all the fragments.
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b.properties.BootclasspathFragmentsDepsProperties.addDependenciesOntoFragments(ctx)
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}
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func addDependenciesOntoBootImageModules(ctx android.BottomUpMutatorContext, modules android.ConfiguredJarList) {
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for i := 0; i < modules.Len(); i++ {
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apex := modules.Apex(i)
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name := modules.Jar(i)
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addDependencyOntoApexModulePair(ctx, apex, name, platformBootclasspathModuleDepTag)
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}
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}
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func (b *platformBootclasspathModule) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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b.classpathFragmentBase().generateAndroidBuildActions(ctx)
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ctx.VisitDirectDepsIf(isActiveModule, func(module android.Module) {
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tag := ctx.OtherModuleDependencyTag(module)
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if tag == platformBootclasspathModuleDepTag {
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b.configuredModules = append(b.configuredModules, module)
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} else if tag == bootclasspathFragmentDepTag {
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b.fragments = append(b.fragments, module)
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}
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})
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b.generateHiddenAPIBuildActions(ctx, b.configuredModules, b.fragments)
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// Nothing to do if skipping the dexpreopt of boot image jars.
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if SkipDexpreoptBootJars(ctx) {
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return
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}
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// Force the GlobalSoongConfig to be created and cached for use by the dex_bootjars
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// GenerateSingletonBuildActions method as it cannot create it for itself.
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dexpreopt.GetGlobalSoongConfig(ctx)
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}
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func (b *platformBootclasspathModule) getImageConfig(ctx android.EarlyModuleContext) *bootImageConfig {
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return defaultBootImageConfig(ctx)
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}
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// generateHiddenAPIBuildActions generates all the hidden API related build rules.
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func (b *platformBootclasspathModule) generateHiddenAPIBuildActions(ctx android.ModuleContext, modules []android.Module, fragments []android.Module) {
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// Save the paths to the monolithic files for retrieval via OutputFiles().
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b.hiddenAPIFlagsCSV = hiddenAPISingletonPaths(ctx).flags
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b.hiddenAPIIndexCSV = hiddenAPISingletonPaths(ctx).index
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b.hiddenAPIMetadataCSV = hiddenAPISingletonPaths(ctx).metadata
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// Don't run any hiddenapi rules if UNSAFE_DISABLE_HIDDENAPI_FLAGS=true. This is a performance
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// optimization that can be used to reduce the incremental build time but as its name suggests it
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// can be unsafe to use, e.g. when the changes affect anything that goes on the bootclasspath.
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if ctx.Config().IsEnvTrue("UNSAFE_DISABLE_HIDDENAPI_FLAGS") {
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paths := android.OutputPaths{b.hiddenAPIFlagsCSV, b.hiddenAPIIndexCSV, b.hiddenAPIMetadataCSV}
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for _, path := range paths {
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ctx.Build(pctx, android.BuildParams{
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Rule: android.Touch,
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Output: path,
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})
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}
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return
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}
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hiddenAPISupportingModules := []hiddenAPISupportingModule{}
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for _, module := range modules {
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if h, ok := module.(hiddenAPISupportingModule); ok {
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if h.bootDexJar() == nil {
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ctx.ModuleErrorf("module %s does not provide a bootDexJar file", module)
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}
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if h.flagsCSV() == nil {
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ctx.ModuleErrorf("module %s does not provide a flagsCSV file", module)
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}
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if h.indexCSV() == nil {
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ctx.ModuleErrorf("module %s does not provide an indexCSV file", module)
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}
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if h.metadataCSV() == nil {
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ctx.ModuleErrorf("module %s does not provide a metadataCSV file", module)
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}
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if ctx.Failed() {
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continue
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}
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hiddenAPISupportingModules = append(hiddenAPISupportingModules, h)
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} else {
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ctx.ModuleErrorf("module %s of type %s does not support hidden API processing", module, ctx.OtherModuleType(module))
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}
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}
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moduleSpecificFlagsPaths := android.Paths{}
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for _, module := range hiddenAPISupportingModules {
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moduleSpecificFlagsPaths = append(moduleSpecificFlagsPaths, module.flagsCSV())
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}
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flagFileInfo := b.properties.Hidden_api.hiddenAPIFlagFileInfo(ctx)
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for _, fragment := range fragments {
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if ctx.OtherModuleHasProvider(fragment, hiddenAPIFlagFileInfoProvider) {
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info := ctx.OtherModuleProvider(fragment, hiddenAPIFlagFileInfoProvider).(hiddenAPIFlagFileInfo)
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flagFileInfo.append(info)
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}
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}
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// Store the information for testing.
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ctx.SetProvider(hiddenAPIFlagFileInfoProvider, flagFileInfo)
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outputPath := hiddenAPISingletonPaths(ctx).flags
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baseFlagsPath := hiddenAPISingletonPaths(ctx).stubFlags
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ruleToGenerateHiddenApiFlags(ctx, outputPath, baseFlagsPath, moduleSpecificFlagsPaths, flagFileInfo)
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b.generateHiddenAPIStubFlagsRules(ctx, hiddenAPISupportingModules)
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b.generateHiddenAPIIndexRules(ctx, hiddenAPISupportingModules)
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b.generatedHiddenAPIMetadataRules(ctx, hiddenAPISupportingModules)
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}
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func (b *platformBootclasspathModule) generateHiddenAPIStubFlagsRules(ctx android.ModuleContext, modules []hiddenAPISupportingModule) {
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bootDexJars := android.Paths{}
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for _, module := range modules {
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bootDexJars = append(bootDexJars, module.bootDexJar())
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}
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sdkKindToStubPaths := hiddenAPIGatherStubLibDexJarPaths(ctx)
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outputPath := hiddenAPISingletonPaths(ctx).stubFlags
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rule := ruleToGenerateHiddenAPIStubFlagsFile(ctx, outputPath, bootDexJars, sdkKindToStubPaths)
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rule.Build("platform-bootclasspath-monolithic-hiddenapi-stub-flags", "monolithic hidden API stub flags")
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}
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func (b *platformBootclasspathModule) generateHiddenAPIIndexRules(ctx android.ModuleContext, modules []hiddenAPISupportingModule) {
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indexes := android.Paths{}
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for _, module := range modules {
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indexes = append(indexes, module.indexCSV())
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}
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rule := android.NewRuleBuilder(pctx, ctx)
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rule.Command().
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BuiltTool("merge_csv").
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Flag("--key_field signature").
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FlagWithArg("--header=", "signature,file,startline,startcol,endline,endcol,properties").
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FlagWithOutput("--output=", hiddenAPISingletonPaths(ctx).index).
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Inputs(indexes)
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rule.Build("platform-bootclasspath-monolithic-hiddenapi-index", "monolithic hidden API index")
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}
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func (b *platformBootclasspathModule) generatedHiddenAPIMetadataRules(ctx android.ModuleContext, modules []hiddenAPISupportingModule) {
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metadataCSVFiles := android.Paths{}
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for _, module := range modules {
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metadataCSVFiles = append(metadataCSVFiles, module.metadataCSV())
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}
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rule := android.NewRuleBuilder(pctx, ctx)
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outputPath := hiddenAPISingletonPaths(ctx).metadata
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rule.Command().
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BuiltTool("merge_csv").
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Flag("--key_field signature").
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FlagWithOutput("--output=", outputPath).
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Inputs(metadataCSVFiles)
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rule.Build("platform-bootclasspath-monolithic-hiddenapi-metadata", "monolithic hidden API metadata")
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}
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