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- // Copyright (C) 2022 The Android Open Source Project
- //
- // 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 filesystem
- import (
- "fmt"
- "github.com/google/blueprint/proptools"
- "android/soong/android"
- )
- type avbGenVbmetaImage struct {
- android.ModuleBase
- properties avbGenVbmetaImageProperties
- output android.OutputPath
- installDir android.InstallPath
- }
- type avbGenVbmetaImageProperties struct {
- // Source file of this image. Can reference a genrule type module with the ":module" syntax.
- Src *string `android:"path,arch_variant"`
- // Name of the image partition. Defaults to the name of this module.
- Partition_name *string
- // The salt in hex. Required for reproducible builds.
- Salt *string
- }
- // The avbGenVbmetaImage generates an unsigned VBMeta image output for the given image.
- func avbGenVbmetaImageFactory() android.Module {
- module := &avbGenVbmetaImage{}
- module.AddProperties(&module.properties)
- android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibFirst)
- return module
- }
- func (a *avbGenVbmetaImage) installFileName() string {
- return a.Name() + ".img"
- }
- func (a *avbGenVbmetaImage) GenerateAndroidBuildActions(ctx android.ModuleContext) {
- builder := android.NewRuleBuilder(pctx, ctx)
- cmd := builder.Command().BuiltTool("avbtool").Text("add_hash_footer")
- cmd.Flag("--dynamic_partition_size")
- cmd.Flag("--do_not_append_vbmeta_image")
- partition_name := proptools.StringDefault(a.properties.Partition_name, a.Name())
- cmd.FlagWithArg("--partition_name ", partition_name)
- if a.properties.Src == nil {
- ctx.PropertyErrorf("src", "missing source file")
- return
- }
- input := android.PathForModuleSrc(ctx, proptools.String(a.properties.Src))
- cmd.FlagWithInput("--image ", input)
- if a.properties.Salt == nil {
- ctx.PropertyErrorf("salt", "missing salt value")
- return
- }
- cmd.FlagWithArg("--salt ", proptools.String(a.properties.Salt))
- a.output = android.PathForModuleOut(ctx, a.installFileName()).OutputPath
- cmd.FlagWithOutput("--output_vbmeta_image ", a.output)
- builder.Build("avbGenVbmetaImage", fmt.Sprintf("avbGenVbmetaImage %s", ctx.ModuleName()))
- }
- var _ android.AndroidMkEntriesProvider = (*avbGenVbmetaImage)(nil)
- // Implements android.AndroidMkEntriesProvider
- func (a *avbGenVbmetaImage) AndroidMkEntries() []android.AndroidMkEntries {
- return []android.AndroidMkEntries{android.AndroidMkEntries{
- Class: "ETC",
- OutputFile: android.OptionalPathForPath(a.output),
- ExtraEntries: []android.AndroidMkExtraEntriesFunc{
- func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
- entries.SetString("LOCAL_MODULE_PATH", a.installDir.String())
- entries.SetString("LOCAL_INSTALLED_MODULE_STEM", a.installFileName())
- },
- },
- }}
- }
- var _ android.OutputFileProducer = (*avbGenVbmetaImage)(nil)
- // Implements android.OutputFileProducer
- func (a *avbGenVbmetaImage) OutputFiles(tag string) (android.Paths, error) {
- if tag == "" {
- return []android.Path{a.output}, nil
- }
- return nil, fmt.Errorf("unsupported module reference tag %q", tag)
- }
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