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// Copyright (C) 2019 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 apex
import (
"fmt"
"strings"
"android/soong/android"
"github.com/google/blueprint/proptools"
)
type Prebuilt struct {
android.ModuleBase
prebuilt android.Prebuilt
properties PrebuiltProperties
inputApex android.Path
installDir android.InstallPath
installFilename string
outputApex android.WritablePath
// list of commands to create symlinks for backward compatibility.
// these commands will be attached as LOCAL_POST_INSTALL_CMD
compatSymlinks []string
}
type PrebuiltProperties struct {
// the path to the prebuilt .apex file to import.
Source string `blueprint:"mutated"`
ForceDisable bool `blueprint:"mutated"`
Src *string
Arch struct {
Arm struct {
Src *string
}
Arm64 struct {
Src *string
}
X86 struct {
Src *string
}
X86_64 struct {
Src *string
}
}
Installable *bool
// Optional name for the installed apex. If unspecified, name of the
// module is used as the file name
Filename *string
// Names of modules to be overridden. Listed modules can only be other binaries
// (in Make or Soong).
// This does not completely prevent installation of the overridden binaries, but if both
// binaries would be installed by default (in PRODUCT_PACKAGES) the other binary will be removed
// from PRODUCT_PACKAGES.
Overrides []string
}
func (p *Prebuilt) installable() bool {
return p.properties.Installable == nil || proptools.Bool(p.properties.Installable)
}
func (p *Prebuilt) isForceDisabled() bool {
return p.properties.ForceDisable
}
func (p *Prebuilt) OutputFiles(tag string) (android.Paths, error) {
switch tag {
case "":
return android.Paths{p.outputApex}, nil
default:
return nil, fmt.Errorf("unsupported module reference tag %q", tag)
}
}
func (p *Prebuilt) InstallFilename() string {
return proptools.StringDefault(p.properties.Filename, p.BaseModuleName()+imageApexSuffix)
}
func (p *Prebuilt) Prebuilt() *android.Prebuilt {
return &p.prebuilt
}
func (p *Prebuilt) Name() string {
return p.prebuilt.Name(p.ModuleBase.Name())
}
// prebuilt_apex imports an `.apex` file into the build graph as if it was built with apex.
func PrebuiltFactory() android.Module {
module := &Prebuilt{}
module.AddProperties(&module.properties)
android.InitSingleSourcePrebuiltModule(module, &module.properties, "Source")
android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
return module
}
func (p *Prebuilt) DepsMutator(ctx android.BottomUpMutatorContext) {
// If the device is configured to use flattened APEX, force disable the prebuilt because
// the prebuilt is a non-flattened one.
forceDisable := ctx.Config().FlattenApex()
// Force disable the prebuilts when we are doing unbundled build. We do unbundled build
// to build the prebuilts themselves.
forceDisable = forceDisable || ctx.Config().UnbundledBuild()
// Force disable the prebuilts when coverage is enabled.
forceDisable = forceDisable || ctx.DeviceConfig().NativeCoverageEnabled()
forceDisable = forceDisable || ctx.Config().IsEnvTrue("EMMA_INSTRUMENT")
// b/137216042 don't use prebuilts when address sanitizer is on
forceDisable = forceDisable || android.InList("address", ctx.Config().SanitizeDevice()) ||
android.InList("hwaddress", ctx.Config().SanitizeDevice())
if forceDisable && p.prebuilt.SourceExists() {
p.properties.ForceDisable = true
return
}
// This is called before prebuilt_select and prebuilt_postdeps mutators
// The mutators requires that src to be set correctly for each arch so that
// arch variants are disabled when src is not provided for the arch.
if len(ctx.MultiTargets()) != 1 {
ctx.ModuleErrorf("compile_multilib shouldn't be \"both\" for prebuilt_apex")
return
}
var src string
switch ctx.MultiTargets()[0].Arch.ArchType {
case android.Arm:
src = String(p.properties.Arch.Arm.Src)
case android.Arm64:
src = String(p.properties.Arch.Arm64.Src)
case android.X86:
src = String(p.properties.Arch.X86.Src)
case android.X86_64:
src = String(p.properties.Arch.X86_64.Src)
default:
ctx.ModuleErrorf("prebuilt_apex does not support %q", ctx.MultiTargets()[0].Arch.String())
return
}
if src == "" {
src = String(p.properties.Src)
}
p.properties.Source = src
}
func (p *Prebuilt) GenerateAndroidBuildActions(ctx android.ModuleContext) {
if p.properties.ForceDisable {
return
}
// TODO(jungjw): Check the key validity.
p.inputApex = p.Prebuilt().SingleSourcePath(ctx)
p.installDir = android.PathForModuleInstall(ctx, "apex")
p.installFilename = p.InstallFilename()
if !strings.HasSuffix(p.installFilename, imageApexSuffix) {
ctx.ModuleErrorf("filename should end in %s for prebuilt_apex", imageApexSuffix)
}
p.outputApex = android.PathForModuleOut(ctx, p.installFilename)
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Input: p.inputApex,
Output: p.outputApex,
})
if p.installable() {
ctx.InstallFile(p.installDir, p.installFilename, p.inputApex)
}
// in case that prebuilt_apex replaces source apex (using prefer: prop)
p.compatSymlinks = makeCompatSymlinks(p.BaseModuleName(), ctx)
// or that prebuilt_apex overrides other apexes (using overrides: prop)
for _, overridden := range p.properties.Overrides {
p.compatSymlinks = append(p.compatSymlinks, makeCompatSymlinks(overridden, ctx)...)
}
}
func (p *Prebuilt) AndroidMkEntries() []android.AndroidMkEntries {
return []android.AndroidMkEntries{android.AndroidMkEntries{
Class: "ETC",
OutputFile: android.OptionalPathForPath(p.inputApex),
Include: "$(BUILD_PREBUILT)",
ExtraEntries: []android.AndroidMkExtraEntriesFunc{
func(entries *android.AndroidMkEntries) {
entries.SetString("LOCAL_MODULE_PATH", p.installDir.ToMakePath().String())
entries.SetString("LOCAL_MODULE_STEM", p.installFilename)
entries.SetBoolIfTrue("LOCAL_UNINSTALLABLE_MODULE", !p.installable())
entries.AddStrings("LOCAL_OVERRIDES_MODULES", p.properties.Overrides...)
if len(p.compatSymlinks) > 0 {
entries.SetString("LOCAL_POST_INSTALL_CMD", strings.Join(p.compatSymlinks, " && "))
}
},
},
}}
}
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