a0436a3928
so that they can be used in `srcs` of genrule. Bug: 181093750 Test: m Change-Id: Ia54554f1e81d766a970c9c4e02906ef9c0d85934
126 lines
4.1 KiB
Go
126 lines
4.1 KiB
Go
// Copyright (C) 2020 The Android Open Source Project
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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 linkerconfig
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import (
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"android/soong/android"
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"android/soong/etc"
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"fmt"
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"github.com/google/blueprint/proptools"
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)
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var (
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pctx = android.NewPackageContext("android/soong/linkerconfig")
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)
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func init() {
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pctx.HostBinToolVariable("conv_linker_config", "conv_linker_config")
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registerLinkerConfigBuildComponent(android.InitRegistrationContext)
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}
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func registerLinkerConfigBuildComponent(ctx android.RegistrationContext) {
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ctx.RegisterModuleType("linker_config", linkerConfigFactory)
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}
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type linkerConfigProperties struct {
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// source linker configuration property file
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Src *string `android:"path"`
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// If set to true, allow module to be installed to one of the partitions.
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// Default value is true.
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// Installable should be marked as false for APEX configuration to avoid
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// conflicts of configuration on /system/etc directory.
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Installable *bool
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}
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type linkerConfig struct {
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android.ModuleBase
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properties linkerConfigProperties
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outputFilePath android.OutputPath
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installDirPath android.InstallPath
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}
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// Implement PrebuiltEtcModule interface to fit in APEX prebuilt list.
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var _ etc.PrebuiltEtcModule = (*linkerConfig)(nil)
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func (l *linkerConfig) BaseDir() string {
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return "etc"
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}
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func (l *linkerConfig) SubDir() string {
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return ""
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}
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func (l *linkerConfig) OutputFile() android.OutputPath {
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return l.outputFilePath
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}
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var _ android.OutputFileProducer = (*linkerConfig)(nil)
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func (l *linkerConfig) OutputFiles(tag string) (android.Paths, error) {
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switch tag {
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case "":
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return android.Paths{l.outputFilePath}, nil
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default:
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return nil, fmt.Errorf("unsupported module reference tag %q", tag)
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}
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}
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func (l *linkerConfig) GenerateAndroidBuildActions(ctx android.ModuleContext) {
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inputFile := android.PathForModuleSrc(ctx, android.String(l.properties.Src))
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l.outputFilePath = android.PathForModuleOut(ctx, "linker.config.pb").OutputPath
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l.installDirPath = android.PathForModuleInstall(ctx, "etc")
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linkerConfigRule := android.NewRuleBuilder(pctx, ctx)
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linkerConfigRule.Command().
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BuiltTool("conv_linker_config").
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Flag("proto").
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FlagWithInput("-s ", inputFile).
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FlagWithOutput("-o ", l.outputFilePath)
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linkerConfigRule.Build("conv_linker_config",
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"Generate linker config protobuf "+l.outputFilePath.String())
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if !proptools.BoolDefault(l.properties.Installable, true) {
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l.SkipInstall()
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}
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ctx.InstallFile(l.installDirPath, l.outputFilePath.Base(), l.outputFilePath)
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}
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// linker_config generates protobuf file from json file. This protobuf file will be used from
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// linkerconfig while generating ld.config.txt. Format of this file can be found from
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// https://android.googlesource.com/platform/system/linkerconfig/+/master/README.md
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func linkerConfigFactory() android.Module {
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m := &linkerConfig{}
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m.AddProperties(&m.properties)
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android.InitAndroidArchModule(m, android.HostAndDeviceSupported, android.MultilibFirst)
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return m
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}
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func (l *linkerConfig) AndroidMkEntries() []android.AndroidMkEntries {
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installable := proptools.BoolDefault(l.properties.Installable, true)
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return []android.AndroidMkEntries{android.AndroidMkEntries{
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Class: "ETC",
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OutputFile: android.OptionalPathForPath(l.outputFilePath),
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ExtraEntries: []android.AndroidMkExtraEntriesFunc{
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func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
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entries.SetString("LOCAL_MODULE_PATH", l.installDirPath.ToMakePath().String())
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entries.SetString("LOCAL_INSTALLED_MODULE_STEM", l.outputFilePath.Base())
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entries.SetBoolIfTrue("LOCAL_UNINSTALLABLE_MODULE", !installable)
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entries.SetString("LINKER_CONFIG_PATH_"+l.Name(), l.OutputFile().String())
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},
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},
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}}
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}
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