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platform_build_soong
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android_filesystem is installable 

Also document about the android_filesystem module type.

Bug: 172414391
Test: m
Change-Id: Iae07af9dd22f34c8e0e4c833333bafdf82dcab2a
This commit is contained in:
Jiyong Park 2020-11-24 14:23:26 +09:00
parent cc1157cd49
commit 65c49f5979
1 changed files with 33 additions and 2 deletions
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35
filesystem/filesystem.go
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@ -29,8 +29,16 @@ func init() {
type filesystem struct {
android.ModuleBase
android.PackagingBase
output android.OutputPath
installDir android.InstallPath
}
// android_filesystem packages a set of modules and their transitive dependencies into a filesystem
// image. The filesystem images are expected to be mounted in the target device, which means the
// modules in the filesystem image are built for the target device (i.e. Android, not Linux host).
// The modules are placed in the filesystem image just like they are installed to the ordinary
// partitions like system.img. For example, cc_library modules are placed under ./lib[64] directory.
func filesystemFactory() android.Module {
module := &filesystem{}
android.InitPackageModule(module)
@ -44,6 +52,10 @@ func (f *filesystem) DepsMutator(ctx android.BottomUpMutatorContext) {
f.AddDeps(ctx, dependencyTag)
}
func (f *filesystem) installFileName() string {
return f.BaseModuleName() + ".img"
}
var pctx = android.NewPackageContext("android/soong/filesystem")
func (f *filesystem) GenerateAndroidBuildActions(ctx android.ModuleContext) {
@ -68,13 +80,32 @@ func (f *filesystem) GenerateAndroidBuildActions(ctx android.ModuleContext) {
Text(">").Output(propFile).
Implicit(mkuserimg)
image := android.PathForModuleOut(ctx, "filesystem.img").OutputPath
f.output = android.PathForModuleOut(ctx, "filesystem.img").OutputPath
builder.Command().BuiltTool(ctx, "build_image").
Text(rootDir.String()). // input directory
Input(propFile).
Output(image).
Output(f.output).
Text(rootDir.String()) // directory where to find fs_config_files|dirs
// rootDir is not deleted. Might be useful for quick inspection.
builder.Build(pctx, ctx, "build_filesystem_image", fmt.Sprintf("Creating filesystem %s", f.BaseModuleName()))
f.installDir = android.PathForModuleInstall(ctx, "etc")
ctx.InstallFile(f.installDir, f.installFileName(), f.output)
}
var _ android.AndroidMkEntriesProvider = (*filesystem)(nil)
// Implements android.AndroidMkEntriesProvider
func (f *filesystem) AndroidMkEntries() []android.AndroidMkEntries {
return []android.AndroidMkEntries{android.AndroidMkEntries{
Class: "ETC",
OutputFile: android.OptionalPathForPath(f.output),
ExtraEntries: []android.AndroidMkExtraEntriesFunc{
func(entries *android.AndroidMkEntries) {
entries.SetString("LOCAL_MODULE_PATH", f.installDir.ToMakePath().String())
entries.SetString("LOCAL_INSTALLED_MODULE_STEM", f.installFileName())
},
},
}}
}