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// Copyright 2016 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 android
import (
"fmt"
"io"
"strings"
)
// prebuilt_etc is for prebuilts that will be installed to
// <partition>/etc/<subdir>
func init() {
RegisterModuleType("prebuilt_etc", PrebuiltEtcFactory)
PreDepsMutators(func(ctx RegisterMutatorsContext) {
ctx.BottomUp("prebuilt_etc", prebuiltEtcMutator).Parallel()
})
}
type prebuiltEtcProperties struct {
// Source file of this prebuilt.
Src *string `android:"arch_variant"`
// optional subdirectory under which this file is installed into
Sub_dir *string `android:"arch_variant"`
// optional name for the installed file. If unspecified, name of the module is used as the file name
Filename *string `android:"arch_variant"`
// when set to true, and filename property is not set, the name for the installed file
// is the same as the file name of the source file.
Filename_from_src *bool `android:"arch_variant"`
// Make this module available when building for recovery.
Recovery_available *bool
InRecovery bool `blueprint:"mutated"`
// Whether this module is directly installable to one of the partitions. Default: true.
Installable *bool
}
type PrebuiltEtc struct {
ModuleBase
properties prebuiltEtcProperties
sourceFilePath Path
outputFilePath OutputPath
installDirPath OutputPath
additionalDependencies *Paths
}
func (p *PrebuiltEtc) inRecovery() bool {
return p.properties.InRecovery || p.ModuleBase.InstallInRecovery()
}
func (p *PrebuiltEtc) onlyInRecovery() bool {
return p.ModuleBase.InstallInRecovery()
}
func (p *PrebuiltEtc) InstallInRecovery() bool {
return p.inRecovery()
}
func (p *PrebuiltEtc) DepsMutator(ctx BottomUpMutatorContext) {
if p.properties.Src == nil {
ctx.PropertyErrorf("src", "missing prebuilt source file")
}
// To support ":modulename" in src
ExtractSourceDeps(ctx, p.properties.Src)
}
func (p *PrebuiltEtc) SourceFilePath(ctx ModuleContext) Path {
return ctx.ExpandSource(String(p.properties.Src), "src")
}
// This allows other derivative modules (e.g. prebuilt_etc_xml) to perform
// additional steps (like validating the src) before the file is installed.
func (p *PrebuiltEtc) SetAdditionalDependencies(paths Paths) {
p.additionalDependencies = &paths
}
func (p *PrebuiltEtc) OutputFile() OutputPath {
return p.outputFilePath
}
func (p *PrebuiltEtc) SubDir() string {
return String(p.properties.Sub_dir)
}
func (p *PrebuiltEtc) Installable() bool {
return p.properties.Installable == nil || Bool(p.properties.Installable)
}
func (p *PrebuiltEtc) GenerateAndroidBuildActions(ctx ModuleContext) {
p.sourceFilePath = ctx.ExpandSource(String(p.properties.Src), "src")
filename := String(p.properties.Filename)
filename_from_src := Bool(p.properties.Filename_from_src)
if filename == "" {
if filename_from_src {
filename = p.sourceFilePath.Base()
} else {
filename = ctx.ModuleName()
}
} else if filename_from_src {
ctx.PropertyErrorf("filename_from_src", "filename is set. filename_from_src can't be true")
return
}
p.outputFilePath = PathForModuleOut(ctx, filename).OutputPath
p.installDirPath = PathForModuleInstall(ctx, "etc", String(p.properties.Sub_dir))
// This ensures that outputFilePath has the same name as this module.
ctx.Build(pctx, BuildParams{
Rule: Cp,
Output: p.outputFilePath,
Input: p.sourceFilePath,
})
}
func (p *PrebuiltEtc) AndroidMk() AndroidMkData {
return AndroidMkData{
Custom: func(w io.Writer, name, prefix, moduleDir string, data AndroidMkData) {
nameSuffix := ""
if p.inRecovery() && !p.onlyInRecovery() {
nameSuffix = ".recovery"
}
fmt.Fprintln(w, "\ninclude $(CLEAR_VARS)")
fmt.Fprintln(w, "LOCAL_PATH :=", moduleDir)
fmt.Fprintln(w, "LOCAL_MODULE :=", name+nameSuffix)
fmt.Fprintln(w, "LOCAL_MODULE_CLASS := ETC")
fmt.Fprintln(w, "LOCAL_MODULE_TAGS := optional")
fmt.Fprintln(w, "LOCAL_PREBUILT_MODULE_FILE :=", p.outputFilePath.String())
fmt.Fprintln(w, "LOCAL_MODULE_PATH :=", "$(OUT_DIR)/"+p.installDirPath.RelPathString())
fmt.Fprintln(w, "LOCAL_INSTALLED_MODULE_STEM :=", p.outputFilePath.Base())
fmt.Fprintln(w, "LOCAL_UNINSTALLABLE_MODULE :=", !p.Installable())
fmt.Fprintln(w, "LOCAL_REQUIRED_MODULES :=", strings.Join(data.Required, " "))
if p.additionalDependencies != nil {
fmt.Fprint(w, "LOCAL_ADDITIONAL_DEPENDENCIES :=")
for _, path := range *p.additionalDependencies {
fmt.Fprint(w, " "+path.String())
}
fmt.Fprintln(w, "")
}
fmt.Fprintln(w, "include $(BUILD_PREBUILT)")
},
}
}
func InitPrebuiltEtcModule(p *PrebuiltEtc) {
p.AddProperties(&p.properties)
}
func PrebuiltEtcFactory() Module {
module := &PrebuiltEtc{}
InitPrebuiltEtcModule(module)
// This module is device-only
InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
return module
}
const (
// coreMode is the variant for modules to be installed to system.
coreMode = "core"
// recoveryMode means a module to be installed to recovery image.
recoveryMode = "recovery"
)
// prebuiltEtcMutator creates the needed variants to install the module to
// system or recovery.
func prebuiltEtcMutator(mctx BottomUpMutatorContext) {
m, ok := mctx.Module().(*PrebuiltEtc)
if !ok {
return
}
var coreVariantNeeded bool = true
var recoveryVariantNeeded bool = false
if Bool(m.properties.Recovery_available) {
recoveryVariantNeeded = true
}
if m.ModuleBase.InstallInRecovery() {
recoveryVariantNeeded = true
coreVariantNeeded = false
}
var variants []string
if coreVariantNeeded {
variants = append(variants, coreMode)
}
if recoveryVariantNeeded {
variants = append(variants, recoveryMode)
}
mod := mctx.CreateVariations(variants...)
for i, v := range variants {
if v == recoveryMode {
m := mod[i].(*PrebuiltEtc)
m.properties.InRecovery = true
}
}
}
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