a2f296f054
In lieu of having an environment variable to override prebuilts preferences (for now), fall back to prebuilts whenever the source module is disabled. Complicated source modules (like LLVM) that already have Go logic can then use an environment variariable to disable their source module whenever they want to use prebuilts. Computes UsePrebuilt once using information from both the source and prebuilt modules, and stores the result in the prebuilt module. Test: m -j libLLVM Test: m -j libLLVM FORCE_BUILD_LLVM_COMPONENTS=true Change-Id: Ib0819a03e9492e55f55de3402e05b3a043644a39
145 lines
3.7 KiB
Go
145 lines
3.7 KiB
Go
// Copyright 2015 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 android
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import "github.com/google/blueprint"
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// Mutator phases:
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// Pre-arch
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// Arch
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// Pre-deps
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// Deps
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// PostDeps
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func registerMutators() {
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ctx := registerMutatorsContext{}
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register := func(funcs []RegisterMutatorFunc) {
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for _, f := range funcs {
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f(ctx)
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}
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}
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ctx.TopDown("load_hooks", loadHookMutator).Parallel()
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ctx.BottomUp("prebuilts", prebuiltMutator).Parallel()
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ctx.BottomUp("defaults_deps", defaultsDepsMutator).Parallel()
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ctx.TopDown("defaults", defaultsMutator).Parallel()
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register(preArch)
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ctx.BottomUp("arch", archMutator).Parallel()
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ctx.TopDown("arch_hooks", archHookMutator).Parallel()
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register(preDeps)
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ctx.BottomUp("deps", depsMutator).Parallel()
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ctx.TopDown("prebuilt_select", PrebuiltSelectModuleMutator).Parallel()
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ctx.BottomUp("prebuilt_replace", PrebuiltReplaceMutator).Parallel()
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register(postDeps)
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}
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type registerMutatorsContext struct{}
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type RegisterMutatorsContext interface {
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TopDown(name string, m AndroidTopDownMutator) MutatorHandle
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BottomUp(name string, m AndroidBottomUpMutator) MutatorHandle
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}
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type RegisterMutatorFunc func(RegisterMutatorsContext)
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var preArch, preDeps, postDeps []RegisterMutatorFunc
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func PreArchMutators(f RegisterMutatorFunc) {
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preArch = append(preArch, f)
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}
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func PreDepsMutators(f RegisterMutatorFunc) {
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preDeps = append(preDeps, f)
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}
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func PostDepsMutators(f RegisterMutatorFunc) {
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postDeps = append(postDeps, f)
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}
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type AndroidTopDownMutator func(TopDownMutatorContext)
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type TopDownMutatorContext interface {
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blueprint.TopDownMutatorContext
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androidBaseContext
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}
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type androidTopDownMutatorContext struct {
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blueprint.TopDownMutatorContext
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androidBaseContextImpl
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}
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type AndroidBottomUpMutator func(BottomUpMutatorContext)
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type BottomUpMutatorContext interface {
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blueprint.BottomUpMutatorContext
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androidBaseContext
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}
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type androidBottomUpMutatorContext struct {
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blueprint.BottomUpMutatorContext
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androidBaseContextImpl
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}
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func (registerMutatorsContext) BottomUp(name string, m AndroidBottomUpMutator) MutatorHandle {
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f := func(ctx blueprint.BottomUpMutatorContext) {
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if a, ok := ctx.Module().(Module); ok {
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actx := &androidBottomUpMutatorContext{
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BottomUpMutatorContext: ctx,
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androidBaseContextImpl: a.base().androidBaseContextFactory(ctx),
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}
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m(actx)
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}
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}
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mutator := &mutator{name: name, bottomUpMutator: f}
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mutators = append(mutators, mutator)
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return mutator
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}
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func (registerMutatorsContext) TopDown(name string, m AndroidTopDownMutator) MutatorHandle {
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f := func(ctx blueprint.TopDownMutatorContext) {
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if a, ok := ctx.Module().(Module); ok {
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actx := &androidTopDownMutatorContext{
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TopDownMutatorContext: ctx,
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androidBaseContextImpl: a.base().androidBaseContextFactory(ctx),
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}
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m(actx)
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}
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}
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mutator := &mutator{name: name, topDownMutator: f}
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mutators = append(mutators, mutator)
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return mutator
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}
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type MutatorHandle interface {
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Parallel() MutatorHandle
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}
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func (mutator *mutator) Parallel() MutatorHandle {
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mutator.parallel = true
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return mutator
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}
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func depsMutator(ctx BottomUpMutatorContext) {
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if m, ok := ctx.Module().(Module); ok {
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m.DepsMutator(ctx)
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}
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}
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