24dfc1fbb2
List of stub libraries from system (and bionic APEX) is currently managed in static file. This change generates the list at build time and adds to the system config so linkerconfig can use it. Bug: 172889962 Test: Build cuttlefish and confirmed list is generated in /system/etc/linker.config.pb Change-Id: Ie0400e9d1098b0de19c6a7c25f261384aadde0a3
110 lines
3.7 KiB
Go
110 lines
3.7 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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"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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android.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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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()
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linkerConfigRule.Command().
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BuiltTool(ctx, "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(pctx, ctx, "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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ctx.InstallFile(l.installDirPath, l.outputFilePath.Base(), l.outputFilePath)
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}
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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(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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