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// Copyright 2024 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 golang wraps the blueprint blueprint_go_binary and bootstrap_go_binary module types in versions
// that implement android.Module that are used when building in Soong. This simplifies the code in Soong
// so it can always assume modules are an android.Module.
// The original blueprint blueprint_go_binary and bootstrap_go_binary module types are still used during
// bootstrapping, so the Android.bp entries for these module types must be compatible with both the
// original blueprint module types and these wrapped module types.
package golang
import (
"android/soong/android"
"github.com/google/blueprint"
"github.com/google/blueprint/bootstrap"
)
func init() {
// Wrap the blueprint Go module types with Soong ones that interoperate with the rest of the Soong modules.
bootstrap.GoModuleTypesAreWrapped()
RegisterGoModuleTypes(android.InitRegistrationContext)
}
func RegisterGoModuleTypes(ctx android.RegistrationContext) {
ctx.RegisterModuleType("bootstrap_go_package", goPackageModuleFactory)
ctx.RegisterModuleType("blueprint_go_binary", goBinaryModuleFactory)
}
// A GoPackage is a module for building Go packages.
type GoPackage struct {
android.ModuleBase
bootstrap.GoPackage
}
func goPackageModuleFactory() android.Module {
module := &GoPackage{}
module.AddProperties(module.Properties()...)
android.InitAndroidArchModule(module, android.HostSupported, android.MultilibFirst)
return module
}
func (g *GoPackage) GenerateBuildActions(ctx blueprint.ModuleContext) {
// The embedded ModuleBase and bootstrap.GoPackage each implement GenerateBuildActions,
// the delegation has to be implemented manually to disambiguate. Call ModuleBase's
// GenerateBuildActions, which will call GenerateAndroidBuildActions, which will call
// bootstrap.GoPackage.GenerateBuildActions.
g.ModuleBase.GenerateBuildActions(ctx)
}
func (g *GoPackage) GenerateAndroidBuildActions(ctx android.ModuleContext) {
g.GoPackage.GenerateBuildActions(ctx.BlueprintModuleContext())
}
// A GoBinary is a module for building executable binaries from Go sources.
type GoBinary struct {
android.ModuleBase
bootstrap.GoBinary
outputFile android.Path
}
func goBinaryModuleFactory() android.Module {
module := &GoBinary{}
module.AddProperties(module.Properties()...)
android.InitAndroidArchModule(module, android.HostSupportedNoCross, android.MultilibFirst)
return module
}
func (g *GoBinary) GenerateBuildActions(ctx blueprint.ModuleContext) {
// The embedded ModuleBase and bootstrap.GoBinary each implement GenerateBuildActions,
// the delegation has to be implemented manually to disambiguate. Call ModuleBase's
// GenerateBuildActions, which will call GenerateAndroidBuildActions, which will call
// bootstrap.GoBinary.GenerateBuildActions.
g.ModuleBase.GenerateBuildActions(ctx)
}
func (g *GoBinary) GenerateAndroidBuildActions(ctx android.ModuleContext) {
// Install the file in Soong instead of blueprint so that Soong knows about the install rules.
g.GoBinary.SetSkipInstall()
// Run the build actions from the wrapped blueprint bootstrap module.
g.GoBinary.GenerateBuildActions(ctx.BlueprintModuleContext())
// Translate the bootstrap module's string path into a Path
outputFile := android.PathForArbitraryOutput(ctx, android.Rel(ctx, ctx.Config().OutDir(), g.IntermediateFile())).WithoutRel()
g.outputFile = outputFile
installPath := ctx.InstallFile(android.PathForModuleInstall(ctx, "bin"), ctx.ModuleName(), outputFile)
if !ctx.Config().KatiEnabled() || g.ExportedToMake() {
// Modules in an unexported namespace have no install rule, only add modules in the exported namespaces
// to the blueprint_tools phony rules.
ctx.Phony("blueprint_tools", installPath)
}
ctx.SetOutputFiles(android.Paths{outputFile}, "")
}
func (g *GoBinary) HostToolPath() android.OptionalPath {
return android.OptionalPathForPath(g.outputFile)
}
func (g *GoBinary) AndroidMkEntries() []android.AndroidMkEntries {
return []android.AndroidMkEntries{
{
Class: "EXECUTABLES",
OutputFile: android.OptionalPathForPath(g.outputFile),
Include: "$(BUILD_SYSTEM)/soong_cc_rust_prebuilt.mk",
},
}
}
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