Add container property to aconfig_declarations.
Bug: 311155208 Test: Unit test Change-Id: I7b187138856d0144203961e82b6dad5e2f8eed9d
This commit is contained in:
Yu Liu
184
aconfig/codegen/cc_aconfig_library.go
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184
aconfig/codegen/cc_aconfig_library.go
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// Copyright 2023 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 codegen
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import (
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"android/soong/aconfig"
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"android/soong/android"
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"android/soong/bazel"
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"android/soong/cc"
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"github.com/google/blueprint"
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"github.com/google/blueprint/proptools"
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"fmt"
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"strings"
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)
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type ccDeclarationsTagType struct {
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blueprint.BaseDependencyTag
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}
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var ccDeclarationsTag = ccDeclarationsTagType{}
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const baseLibDep = "server_configurable_flags"
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type CcAconfigLibraryProperties struct {
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// name of the aconfig_declarations module to generate a library for
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Aconfig_declarations string
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// default mode is "production", the other accepted modes are:
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// "test": to generate test mode version of the library
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// "exported": to generate exported mode version of the library
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// an error will be thrown if the mode is not supported
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Mode *string
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}
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type CcAconfigLibraryCallbacks struct {
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properties *CcAconfigLibraryProperties
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generatedDir android.WritablePath
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headerDir android.WritablePath
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generatedCpp android.WritablePath
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generatedH android.WritablePath
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}
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func CcAconfigLibraryFactory() android.Module {
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callbacks := &CcAconfigLibraryCallbacks{
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properties: &CcAconfigLibraryProperties{},
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}
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return cc.GeneratedCcLibraryModuleFactory("cc_aconfig_library", callbacks)
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorInit(ctx cc.BaseModuleContext) {
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorProps() []interface{} {
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return []interface{}{this.properties}
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorDeps(ctx cc.DepsContext, deps cc.Deps) cc.Deps {
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// Add a dependency for the declarations module
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declarations := this.properties.Aconfig_declarations
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if len(declarations) == 0 {
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ctx.PropertyErrorf("aconfig_declarations", "aconfig_declarations property required")
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} else {
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ctx.AddDependency(ctx.Module(), ccDeclarationsTag, declarations)
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}
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// Add a dependency for the aconfig flags base library
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deps.SharedLibs = append(deps.SharedLibs, baseLibDep)
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// TODO: It'd be really nice if we could reexport this library and not make everyone do it.
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return deps
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorSources(ctx cc.ModuleContext) cc.GeneratedSource {
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result := cc.GeneratedSource{}
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// Get the values that came from the global RELEASE_ACONFIG_VALUE_SETS flag
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declarationsModules := ctx.GetDirectDepsWithTag(ccDeclarationsTag)
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if len(declarationsModules) != 1 {
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panic(fmt.Errorf("Exactly one aconfig_declarations property required"))
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}
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declarations := ctx.OtherModuleProvider(declarationsModules[0], aconfig.DeclarationsProviderKey).(aconfig.DeclarationsProviderData)
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// Figure out the generated file paths. This has to match aconfig's codegen_cpp.rs.
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this.generatedDir = android.PathForModuleGen(ctx)
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this.headerDir = android.PathForModuleGen(ctx, "include")
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result.IncludeDirs = []android.Path{this.headerDir}
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result.ReexportedDirs = []android.Path{this.headerDir}
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basename := strings.ReplaceAll(declarations.Package, ".", "_")
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this.generatedCpp = android.PathForModuleGen(ctx, basename+".cc")
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result.Sources = []android.Path{this.generatedCpp}
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this.generatedH = android.PathForModuleGen(ctx, "include", basename+".h")
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result.Headers = []android.Path{this.generatedH}
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return result
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorFlags(ctx cc.ModuleContext, flags cc.Flags, deps cc.PathDeps) cc.Flags {
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return flags
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}
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func (this *CcAconfigLibraryCallbacks) GeneratorBuildActions(ctx cc.ModuleContext, flags cc.Flags, deps cc.PathDeps) {
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// Get the values that came from the global RELEASE_ACONFIG_VALUE_SETS flag
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declarationsModules := ctx.GetDirectDepsWithTag(ccDeclarationsTag)
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if len(declarationsModules) != 1 {
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panic(fmt.Errorf("Exactly one aconfig_declarations property required"))
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}
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declarations := ctx.OtherModuleProvider(declarationsModules[0], aconfig.DeclarationsProviderKey).(aconfig.DeclarationsProviderData)
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mode := proptools.StringDefault(this.properties.Mode, "production")
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if !isModeSupported(mode) {
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ctx.PropertyErrorf("mode", "%q is not a supported mode", mode)
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}
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ctx.Build(pctx, android.BuildParams{
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Rule: cppRule,
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Input: declarations.IntermediatePath,
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Outputs: []android.WritablePath{
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this.generatedCpp,
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this.generatedH,
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},
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Description: "cc_aconfig_library",
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Args: map[string]string{
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"gendir": this.generatedDir.String(),
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"mode": mode,
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},
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})
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}
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type bazelCcAconfigLibraryAttributes struct {
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cc.SdkAttributes
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Aconfig_declarations bazel.LabelAttribute
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Dynamic_deps bazel.LabelListAttribute
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}
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// Convert the cc_aconfig_library module to bazel.
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//
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// This method is called from cc.ConvertWithBp2build to actually convert the
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// cc_aconfig_library module. This is necessary since the factory method of this
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// module type returns a cc library and the bp2build conversion is called on the
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// cc library type.
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func (this *CcAconfigLibraryCallbacks) GeneratorBp2build(ctx android.Bp2buildMutatorContext, module *cc.Module) bool {
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if ctx.ModuleType() != "cc_aconfig_library" {
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return false
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}
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attrs := bazelCcAconfigLibraryAttributes{
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SdkAttributes: cc.Bp2BuildParseSdkAttributes(module),
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Aconfig_declarations: *bazel.MakeLabelAttribute(android.BazelLabelForModuleDepSingle(ctx, this.properties.Aconfig_declarations).Label),
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Dynamic_deps: bazel.MakeLabelListAttribute(android.BazelLabelForModuleDeps(ctx, []string{baseLibDep})),
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}
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props := bazel.BazelTargetModuleProperties{
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Rule_class: "cc_aconfig_library",
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Bzl_load_location: "//build/bazel/rules/cc:cc_aconfig_library.bzl",
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}
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ctx.CreateBazelTargetModule(
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props,
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android.CommonAttributes{
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Name: ctx.ModuleName(),
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Tags: android.ApexAvailableTagsWithoutTestApexes(ctx, module),
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},
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&attrs)
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return true
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}
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