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// Copyright 2018 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 dexpreopt
import (
"encoding/json"
"fmt"
"strings"
"github.com/google/blueprint"
"android/soong/android"
)
// GlobalConfig stores the configuration for dex preopting. The fields are set
// from product variables via dex_preopt_config.mk.
type GlobalConfig struct {
DisablePreopt bool // disable preopt for all modules
DisablePreoptModules []string // modules with preopt disabled by product-specific config
OnlyPreoptBootImageAndSystemServer bool // only preopt jars in the boot image or system server
UseArtImage bool // use the art image (use other boot class path dex files without image)
HasSystemOther bool // store odex files that match PatternsOnSystemOther on the system_other partition
PatternsOnSystemOther []string // patterns (using '%' to denote a prefix match) to put odex on the system_other partition
DisableGenerateProfile bool // don't generate profiles
ProfileDir string // directory to find profiles in
BootJars []string // modules for jars that form the boot class path
UpdatableBootJars []string // jars within apex that form the boot class path
ArtApexJars []string // modules for jars that are in the ART APEX
SystemServerJars []string // jars that form the system server
SystemServerApps []string // apps that are loaded into system server
UpdatableSystemServerJars []string // jars within apex that are loaded into system server
SpeedApps []string // apps that should be speed optimized
PreoptFlags []string // global dex2oat flags that should be used if no module-specific dex2oat flags are specified
DefaultCompilerFilter string // default compiler filter to pass to dex2oat, overridden by --compiler-filter= in module-specific dex2oat flags
SystemServerCompilerFilter string // default compiler filter to pass to dex2oat for system server jars
GenerateDMFiles bool // generate Dex Metadata files
NoDebugInfo bool // don't generate debug info by default
DontResolveStartupStrings bool // don't resolve string literals loaded during application startup.
AlwaysSystemServerDebugInfo bool // always generate mini debug info for system server modules (overrides NoDebugInfo=true)
NeverSystemServerDebugInfo bool // never generate mini debug info for system server modules (overrides NoDebugInfo=false)
AlwaysOtherDebugInfo bool // always generate mini debug info for non-system server modules (overrides NoDebugInfo=true)
NeverOtherDebugInfo bool // never generate mini debug info for non-system server modules (overrides NoDebugInfo=true)
IsEng bool // build is a eng variant
SanitizeLite bool // build is the second phase of a SANITIZE_LITE build
DefaultAppImages bool // build app images (TODO: .art files?) by default
Dex2oatXmx string // max heap size for dex2oat
Dex2oatXms string // initial heap size for dex2oat
EmptyDirectory string // path to an empty directory
CpuVariant map[android.ArchType]string // cpu variant for each architecture
InstructionSetFeatures map[android.ArchType]string // instruction set for each architecture
// Only used for boot image
DirtyImageObjects android.OptionalPath // path to a dirty-image-objects file
BootImageProfiles android.Paths // path to a boot-image-profile.txt file
BootFlags string // extra flags to pass to dex2oat for the boot image
Dex2oatImageXmx string // max heap size for dex2oat for the boot image
Dex2oatImageXms string // initial heap size for dex2oat for the boot image
}
// GlobalSoongConfig contains the global config that is generated from Soong,
// stored in dexpreopt_soong.config.
type GlobalSoongConfig struct {
// Paths to tools possibly used by the generated commands.
Profman android.Path
Dex2oat android.Path
Aapt android.Path
SoongZip android.Path
Zip2zip android.Path
ManifestCheck android.Path
ConstructContext android.Path
}
type ModuleConfig struct {
Name string
DexLocation string // dex location on device
BuildPath android.OutputPath
DexPath android.Path
ManifestPath android.Path
UncompressedDex bool
HasApkLibraries bool
PreoptFlags []string
ProfileClassListing android.OptionalPath
ProfileIsTextListing bool
ProfileBootListing android.OptionalPath
EnforceUsesLibraries bool
PresentOptionalUsesLibraries []string
UsesLibraries []string
LibraryPaths map[string]android.Path
Archs []android.ArchType
DexPreoptImages []android.Path
DexPreoptImagesDeps []android.OutputPaths
DexPreoptImageLocations []string
PreoptBootClassPathDexFiles android.Paths // file paths of boot class path files
PreoptBootClassPathDexLocations []string // virtual locations of boot class path files
PreoptExtractedApk bool // Overrides OnlyPreoptModules
NoCreateAppImage bool
ForceCreateAppImage bool
PresignedPrebuilt bool
}
type globalSoongConfigSingleton struct{}
var pctx = android.NewPackageContext("android/soong/dexpreopt")
func init() {
pctx.Import("android/soong/android")
android.RegisterSingletonType("dexpreopt-soong-config", func() android.Singleton {
return &globalSoongConfigSingleton{}
})
}
func constructPath(ctx android.PathContext, path string) android.Path {
buildDirPrefix := ctx.Config().BuildDir() + "/"
if path == "" {
return nil
} else if strings.HasPrefix(path, buildDirPrefix) {
return android.PathForOutput(ctx, strings.TrimPrefix(path, buildDirPrefix))
} else {
return android.PathForSource(ctx, path)
}
}
func constructPaths(ctx android.PathContext, paths []string) android.Paths {
var ret android.Paths
for _, path := range paths {
ret = append(ret, constructPath(ctx, path))
}
return ret
}
func constructPathMap(ctx android.PathContext, paths map[string]string) map[string]android.Path {
ret := map[string]android.Path{}
for key, path := range paths {
ret[key] = constructPath(ctx, path)
}
return ret
}
func constructWritablePath(ctx android.PathContext, path string) android.WritablePath {
if path == "" {
return nil
}
return constructPath(ctx, path).(android.WritablePath)
}
// ParseGlobalConfig parses the given data assumed to be read from the global
// dexpreopt.config file into a GlobalConfig struct.
func ParseGlobalConfig(ctx android.PathContext, data []byte) (*GlobalConfig, error) {
type GlobalJSONConfig struct {
*GlobalConfig
// Copies of entries in GlobalConfig that are not constructable without extra parameters. They will be
// used to construct the real value manually below.
DirtyImageObjects string
BootImageProfiles []string
}
config := GlobalJSONConfig{}
err := json.Unmarshal(data, &config)
if err != nil {
return config.GlobalConfig, err
}
// Construct paths that require a PathContext.
config.GlobalConfig.DirtyImageObjects = android.OptionalPathForPath(constructPath(ctx, config.DirtyImageObjects))
config.GlobalConfig.BootImageProfiles = constructPaths(ctx, config.BootImageProfiles)
return config.GlobalConfig, nil
}
type globalConfigAndRaw struct {
global *GlobalConfig
data []byte
}
// GetGlobalConfig returns the global dexpreopt.config that's created in the
// make config phase. It is loaded once the first time it is called for any
// ctx.Config(), and returns the same data for all future calls with the same
// ctx.Config(). A value can be inserted for tests using
// setDexpreoptTestGlobalConfig.
func GetGlobalConfig(ctx android.PathContext) *GlobalConfig {
return getGlobalConfigRaw(ctx).global
}
// GetGlobalConfigRawData is the same as GetGlobalConfig, except that it returns
// the literal content of dexpreopt.config.
func GetGlobalConfigRawData(ctx android.PathContext) []byte {
return getGlobalConfigRaw(ctx).data
}
var globalConfigOnceKey = android.NewOnceKey("DexpreoptGlobalConfig")
var testGlobalConfigOnceKey = android.NewOnceKey("TestDexpreoptGlobalConfig")
func getGlobalConfigRaw(ctx android.PathContext) globalConfigAndRaw {
return ctx.Config().Once(globalConfigOnceKey, func() interface{} {
if data, err := ctx.Config().DexpreoptGlobalConfig(ctx); err != nil {
panic(err)
} else if data != nil {
globalConfig, err := ParseGlobalConfig(ctx, data)
if err != nil {
panic(err)
}
return globalConfigAndRaw{globalConfig, data}
}
// No global config filename set, see if there is a test config set
return ctx.Config().Once(testGlobalConfigOnceKey, func() interface{} {
// Nope, return a config with preopting disabled
return globalConfigAndRaw{&GlobalConfig{
DisablePreopt: true,
DisableGenerateProfile: true,
}, nil}
})
}).(globalConfigAndRaw)
}
// SetTestGlobalConfig sets a GlobalConfig that future calls to GetGlobalConfig
// will return. It must be called before the first call to GetGlobalConfig for
// the config.
func SetTestGlobalConfig(config android.Config, globalConfig *GlobalConfig) {
config.Once(testGlobalConfigOnceKey, func() interface{} { return globalConfigAndRaw{globalConfig, nil} })
}
// ParseModuleConfig parses a per-module dexpreopt.config file into a
// ModuleConfig struct. It is not used in Soong, which receives a ModuleConfig
// struct directly from java/dexpreopt.go. It is used in dexpreopt_gen called
// from Make to read the module dexpreopt.config written in the Make config
// stage.
func ParseModuleConfig(ctx android.PathContext, data []byte) (*ModuleConfig, error) {
type ModuleJSONConfig struct {
*ModuleConfig
// Copies of entries in ModuleConfig that are not constructable without extra parameters. They will be
// used to construct the real value manually below.
BuildPath string
DexPath string
ManifestPath string
ProfileClassListing string
LibraryPaths map[string]string
DexPreoptImages []string
DexPreoptImageLocations []string
PreoptBootClassPathDexFiles []string
}
config := ModuleJSONConfig{}
err := json.Unmarshal(data, &config)
if err != nil {
return config.ModuleConfig, err
}
// Construct paths that require a PathContext.
config.ModuleConfig.BuildPath = constructPath(ctx, config.BuildPath).(android.OutputPath)
config.ModuleConfig.DexPath = constructPath(ctx, config.DexPath)
config.ModuleConfig.ManifestPath = constructPath(ctx, config.ManifestPath)
config.ModuleConfig.ProfileClassListing = android.OptionalPathForPath(constructPath(ctx, config.ProfileClassListing))
config.ModuleConfig.LibraryPaths = constructPathMap(ctx, config.LibraryPaths)
config.ModuleConfig.DexPreoptImages = constructPaths(ctx, config.DexPreoptImages)
config.ModuleConfig.DexPreoptImageLocations = config.DexPreoptImageLocations
config.ModuleConfig.PreoptBootClassPathDexFiles = constructPaths(ctx, config.PreoptBootClassPathDexFiles)
// This needs to exist, but dependencies are already handled in Make, so we don't need to pass them through JSON.
config.ModuleConfig.DexPreoptImagesDeps = make([]android.OutputPaths, len(config.ModuleConfig.DexPreoptImages))
return config.ModuleConfig, nil
}
// dex2oatModuleName returns the name of the module to use for the dex2oat host
// tool. It should be a binary module with public visibility that is compiled
// and installed for host.
func dex2oatModuleName(config android.Config) string {
// Default to the debug variant of dex2oat to help find bugs.
// Set USE_DEX2OAT_DEBUG to false for only building non-debug versions.
if config.Getenv("USE_DEX2OAT_DEBUG") == "false" {
return "dex2oat"
} else {
return "dex2oatd"
}
}
var dex2oatDepTag = struct {
blueprint.BaseDependencyTag
}{}
// RegisterToolDeps adds the necessary dependencies to binary modules for tools
// that are required later when Get(Cached)GlobalSoongConfig is called. It
// should be called from a mutator that's registered with
// android.RegistrationContext.FinalDepsMutators.
func RegisterToolDeps(ctx android.BottomUpMutatorContext) {
dex2oatBin := dex2oatModuleName(ctx.Config())
v := ctx.Config().BuildOSTarget.Variations()
ctx.AddFarVariationDependencies(v, dex2oatDepTag, dex2oatBin)
}
func dex2oatPathFromDep(ctx android.ModuleContext) android.Path {
dex2oatBin := dex2oatModuleName(ctx.Config())
dex2oatModule := ctx.GetDirectDepWithTag(dex2oatBin, dex2oatDepTag)
if dex2oatModule == nil {
// If this happens there's probably a missing call to AddToolDeps in DepsMutator.
panic(fmt.Sprintf("Failed to lookup %s dependency", dex2oatBin))
}
dex2oatPath := dex2oatModule.(android.HostToolProvider).HostToolPath()
if !dex2oatPath.Valid() {
panic(fmt.Sprintf("Failed to find host tool path in %s", dex2oatModule))
}
return dex2oatPath.Path()
}
// createGlobalSoongConfig creates a GlobalSoongConfig from the current context.
// Should not be used in dexpreopt_gen.
func createGlobalSoongConfig(ctx android.ModuleContext) *GlobalSoongConfig {
if ctx.Config().TestProductVariables != nil {
// If we're called in a test there'll be a confusing error from the path
// functions below that gets reported without a stack trace, so let's panic
// properly with a more helpful message.
panic("This should not be called from tests. Please call GlobalSoongConfigForTests somewhere in the test setup.")
}
return &GlobalSoongConfig{
Profman: ctx.Config().HostToolPath(ctx, "profman"),
Dex2oat: dex2oatPathFromDep(ctx),
Aapt: ctx.Config().HostToolPath(ctx, "aapt"),
SoongZip: ctx.Config().HostToolPath(ctx, "soong_zip"),
Zip2zip: ctx.Config().HostToolPath(ctx, "zip2zip"),
ManifestCheck: ctx.Config().HostToolPath(ctx, "manifest_check"),
ConstructContext: android.PathForSource(ctx, "build/make/core/construct_context.sh"),
}
}
// The main reason for this Once cache for GlobalSoongConfig is to make the
// dex2oat path available to singletons. In ordinary modules we get it through a
// dex2oatDepTag dependency, but in singletons there's no simple way to do the
// same thing and ensure the right variant is selected, hence this cache to make
// the resolved path available to singletons. This means we depend on there
// being at least one ordinary module with a dex2oatDepTag dependency.
//
// TODO(b/147613152): Implement a way to deal with dependencies from singletons,
// and then possibly remove this cache altogether (but the use in
// GlobalSoongConfigForTests also needs to be rethought).
var globalSoongConfigOnceKey = android.NewOnceKey("DexpreoptGlobalSoongConfig")
// GetGlobalSoongConfig creates a GlobalSoongConfig the first time it's called,
// and later returns the same cached instance.
func GetGlobalSoongConfig(ctx android.ModuleContext) *GlobalSoongConfig {
globalSoong := ctx.Config().Once(globalSoongConfigOnceKey, func() interface{} {
return createGlobalSoongConfig(ctx)
}).(*GlobalSoongConfig)
// Always resolve the tool path from the dependency, to ensure that every
// module has the dependency added properly.
myDex2oat := dex2oatPathFromDep(ctx)
if myDex2oat != globalSoong.Dex2oat {
panic(fmt.Sprintf("Inconsistent dex2oat path in cached config: expected %s, got %s", globalSoong.Dex2oat, myDex2oat))
}
return globalSoong
}
// GetCachedGlobalSoongConfig returns a cached GlobalSoongConfig created by an
// earlier GetGlobalSoongConfig call. This function works with any context
// compatible with a basic PathContext, since it doesn't try to create a
// GlobalSoongConfig with the proper paths (which requires a full
// ModuleContext). If there has been no prior call to GetGlobalSoongConfig, nil
// is returned.
func GetCachedGlobalSoongConfig(ctx android.PathContext) *GlobalSoongConfig {
return ctx.Config().Once(globalSoongConfigOnceKey, func() interface{} {
return (*GlobalSoongConfig)(nil)
}).(*GlobalSoongConfig)
}
type globalJsonSoongConfig struct {
Profman string
Dex2oat string
Aapt string
SoongZip string
Zip2zip string
ManifestCheck string
ConstructContext string
}
// ParseGlobalSoongConfig parses the given data assumed to be read from the
// global dexpreopt_soong.config file into a GlobalSoongConfig struct. It is
// only used in dexpreopt_gen.
func ParseGlobalSoongConfig(ctx android.PathContext, data []byte) (*GlobalSoongConfig, error) {
var jc globalJsonSoongConfig
err := json.Unmarshal(data, &jc)
if err != nil {
return &GlobalSoongConfig{}, err
}
config := &GlobalSoongConfig{
Profman: constructPath(ctx, jc.Profman),
Dex2oat: constructPath(ctx, jc.Dex2oat),
Aapt: constructPath(ctx, jc.Aapt),
SoongZip: constructPath(ctx, jc.SoongZip),
Zip2zip: constructPath(ctx, jc.Zip2zip),
ManifestCheck: constructPath(ctx, jc.ManifestCheck),
ConstructContext: constructPath(ctx, jc.ConstructContext),
}
return config, nil
}
func (s *globalSoongConfigSingleton) GenerateBuildActions(ctx android.SingletonContext) {
if GetGlobalConfig(ctx).DisablePreopt {
return
}
config := GetCachedGlobalSoongConfig(ctx)
if config == nil {
// No module has enabled dexpreopting, so we assume there will be no calls
// to dexpreopt_gen.
return
}
jc := globalJsonSoongConfig{
Profman: config.Profman.String(),
Dex2oat: config.Dex2oat.String(),
Aapt: config.Aapt.String(),
SoongZip: config.SoongZip.String(),
Zip2zip: config.Zip2zip.String(),
ManifestCheck: config.ManifestCheck.String(),
ConstructContext: config.ConstructContext.String(),
}
data, err := json.Marshal(jc)
if err != nil {
ctx.Errorf("failed to JSON marshal GlobalSoongConfig: %v", err)
return
}
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: android.PathForOutput(ctx, "dexpreopt_soong.config"),
Args: map[string]string{
"content": string(data),
},
})
}
func (s *globalSoongConfigSingleton) MakeVars(ctx android.MakeVarsContext) {
if GetGlobalConfig(ctx).DisablePreopt {
return
}
config := GetCachedGlobalSoongConfig(ctx)
if config == nil {
return
}
ctx.Strict("DEX2OAT", config.Dex2oat.String())
ctx.Strict("DEXPREOPT_GEN_DEPS", strings.Join([]string{
config.Profman.String(),
config.Dex2oat.String(),
config.Aapt.String(),
config.SoongZip.String(),
config.Zip2zip.String(),
config.ManifestCheck.String(),
config.ConstructContext.String(),
}, " "))
}
func GlobalConfigForTests(ctx android.PathContext) *GlobalConfig {
return &GlobalConfig{
DisablePreopt: false,
DisablePreoptModules: nil,
OnlyPreoptBootImageAndSystemServer: false,
HasSystemOther: false,
PatternsOnSystemOther: nil,
DisableGenerateProfile: false,
ProfileDir: "",
BootJars: nil,
UpdatableBootJars: nil,
ArtApexJars: nil,
SystemServerJars: nil,
SystemServerApps: nil,
UpdatableSystemServerJars: nil,
SpeedApps: nil,
PreoptFlags: nil,
DefaultCompilerFilter: "",
SystemServerCompilerFilter: "",
GenerateDMFiles: false,
NoDebugInfo: false,
DontResolveStartupStrings: false,
AlwaysSystemServerDebugInfo: false,
NeverSystemServerDebugInfo: false,
AlwaysOtherDebugInfo: false,
NeverOtherDebugInfo: false,
IsEng: false,
SanitizeLite: false,
DefaultAppImages: false,
Dex2oatXmx: "",
Dex2oatXms: "",
EmptyDirectory: "empty_dir",
CpuVariant: nil,
InstructionSetFeatures: nil,
DirtyImageObjects: android.OptionalPath{},
BootImageProfiles: nil,
BootFlags: "",
Dex2oatImageXmx: "",
Dex2oatImageXms: "",
}
}
func GlobalSoongConfigForTests(config android.Config) *GlobalSoongConfig {
// Install the test GlobalSoongConfig in the Once cache so that later calls to
// Get(Cached)GlobalSoongConfig returns it without trying to create a real one.
return config.Once(globalSoongConfigOnceKey, func() interface{} {
return &GlobalSoongConfig{
Profman: android.PathForTesting("profman"),
Dex2oat: android.PathForTesting("dex2oat"),
Aapt: android.PathForTesting("aapt"),
SoongZip: android.PathForTesting("soong_zip"),
Zip2zip: android.PathForTesting("zip2zip"),
ManifestCheck: android.PathForTesting("manifest_check"),
ConstructContext: android.PathForTesting("construct_context.sh"),
}
}).(*GlobalSoongConfig)
}