0ccc232691
Introducing fdo_profile module type to reimplement the afdo support in cc moduels. This change allows the feature to be compatible with Bazel migration.
How it works:
PreDepsMutators:
* BeginMutator: If non-static cc modules sets afdo prop, search and add corresponding fdo_profile module as a dep with fdoProfileTag
* fdoProfileMutator:
* If in fdo_profile module, set FdoProfileProvider with full path to profile
* If in cc module, read FdoProfileProvider from dep with fdoProfileTag and set FdoProfileInfo.Path to FdoProfilePath field
PostDepsMutators:
* afdoDepsMutator: If a module has FdoProfilePath set, walk to its static deps and set itself to the deps' AfdoRdeps
* afdoMutator: If a static dep has AfdoRDeps set, create afdo variant.
Ignore-AOSP-First: Other CLs in the same topic are internal-only
Test: go test
Bug: b/267229065
Change-Id: I687d798a02d9743c92804fea36fb4ae3a7a0e5e3
85 lines
2.7 KiB
Go
85 lines
2.7 KiB
Go
// 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 cc
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import (
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"android/soong/android"
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"github.com/google/blueprint"
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)
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func init() {
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RegisterFdoProfileBuildComponents(android.InitRegistrationContext)
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}
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func RegisterFdoProfileBuildComponents(ctx android.RegistrationContext) {
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ctx.RegisterModuleType("fdo_profile", fdoProfileFactory)
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}
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type fdoProfile struct {
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android.ModuleBase
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properties fdoProfileProperties
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}
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type fdoProfileProperties struct {
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Profile *string `android:"arch_variant"`
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}
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// FdoProfileInfo is provided by FdoProfileProvider
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type FdoProfileInfo struct {
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Path android.Path
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}
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// FdoProfileProvider is used to provide path to an fdo profile
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var FdoProfileProvider = blueprint.NewMutatorProvider(FdoProfileInfo{}, "fdo_profile")
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// FdoProfileMutatorInterface is the interface implemented by fdo_profile module type
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// module types that can depend on an fdo_profile module
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type FdoProfileMutatorInterface interface {
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// FdoProfileMutator eithers set or get FdoProfileProvider
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FdoProfileMutator(ctx android.BottomUpMutatorContext)
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}
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var _ FdoProfileMutatorInterface = (*fdoProfile)(nil)
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// GenerateAndroidBuildActions of fdo_profile does not have any build actions
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func (fp *fdoProfile) GenerateAndroidBuildActions(ctx android.ModuleContext) {}
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// FdoProfileMutator sets FdoProfileProvider to fdo_profile module
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// or sets afdo.Properties.FdoProfilePath to path in FdoProfileProvider of the depended fdo_profile
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func (fp *fdoProfile) FdoProfileMutator(ctx android.BottomUpMutatorContext) {
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if fp.properties.Profile != nil {
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path := android.PathForModuleSrc(ctx, *fp.properties.Profile)
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ctx.SetProvider(FdoProfileProvider, FdoProfileInfo{
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Path: path,
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})
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}
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}
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// fdoProfileMutator calls the generic FdoProfileMutator function of FdoProfileMutator
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// which is implemented by cc and cc.FdoProfile
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func fdoProfileMutator(ctx android.BottomUpMutatorContext) {
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if f, ok := ctx.Module().(FdoProfileMutatorInterface); ok {
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f.FdoProfileMutator(ctx)
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}
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}
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func fdoProfileFactory() android.Module {
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m := &fdoProfile{}
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m.AddProperties(&m.properties)
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android.InitAndroidMultiTargetsArchModule(m, android.DeviceSupported, android.MultilibBoth)
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return m
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}
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