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// Copyright 2019 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 java
import (
"path/filepath"
"sort"
"strings"
"android/soong/android"
"android/soong/dexpreopt"
"github.com/google/blueprint/pathtools"
"github.com/google/blueprint/proptools"
)
func init() {
android.RegisterSingletonType("dex_bootjars", dexpreoptBootJarsFactory)
}
// The image "location" is a symbolic path that with multiarchitecture
// support doesn't really exist on the device. Typically it is
// /system/framework/boot.art and should be the same for all supported
// architectures on the device. The concrete architecture specific
// content actually ends up in a "filename" that contains an
// architecture specific directory name such as arm, arm64, mips,
// mips64, x86, x86_64.
//
// Here are some example values for an x86_64 / x86 configuration:
//
// bootImages["x86_64"] = "out/soong/generic_x86_64/dex_bootjars/system/framework/x86_64/boot.art"
// dexpreopt.PathToLocation(bootImages["x86_64"], "x86_64") = "out/soong/generic_x86_64/dex_bootjars/system/framework/boot.art"
//
// bootImages["x86"] = "out/soong/generic_x86_64/dex_bootjars/system/framework/x86/boot.art"
// dexpreopt.PathToLocation(bootImages["x86"])= "out/soong/generic_x86_64/dex_bootjars/system/framework/boot.art"
//
// The location is passed as an argument to the ART tools like dex2oat instead of the real path. The ART tools
// will then reconstruct the real path, so the rules must have a dependency on the real path.
type bootImageConfig struct {
name string
modules []string
dexLocations []string
dexPaths android.WritablePaths
dir android.OutputPath
symbolsDir android.OutputPath
targets []android.Target
images map[android.ArchType]android.OutputPath
zip android.WritablePath
}
type bootImage struct {
bootImageConfig
installs map[android.ArchType]android.RuleBuilderInstalls
vdexInstalls map[android.ArchType]android.RuleBuilderInstalls
unstrippedInstalls map[android.ArchType]android.RuleBuilderInstalls
profileInstalls android.RuleBuilderInstalls
}
func newBootImage(ctx android.PathContext, config bootImageConfig) *bootImage {
image := &bootImage{
bootImageConfig: config,
installs: make(map[android.ArchType]android.RuleBuilderInstalls),
vdexInstalls: make(map[android.ArchType]android.RuleBuilderInstalls),
unstrippedInstalls: make(map[android.ArchType]android.RuleBuilderInstalls),
}
return image
}
func concat(lists ...[]string) []string {
var size int
for _, l := range lists {
size += len(l)
}
ret := make([]string, 0, size)
for _, l := range lists {
ret = append(ret, l...)
}
return ret
}
func dexpreoptBootJarsFactory() android.Singleton {
return &dexpreoptBootJars{}
}
func skipDexpreoptBootJars(ctx android.PathContext) bool {
if ctx.Config().UnbundledBuild() {
return true
}
if len(ctx.Config().Targets[android.Android]) == 0 {
// Host-only build
return true
}
return false
}
type dexpreoptBootJars struct {
defaultBootImage *bootImage
otherImages []*bootImage
dexpreoptConfigForMake android.WritablePath
}
// dexpreoptBoot singleton rules
func (d *dexpreoptBootJars) GenerateBuildActions(ctx android.SingletonContext) {
if skipDexpreoptBootJars(ctx) {
return
}
d.dexpreoptConfigForMake = android.PathForOutput(ctx, ctx.Config().DeviceName(), "dexpreopt.config")
writeGlobalConfigForMake(ctx, d.dexpreoptConfigForMake)
global := dexpreoptGlobalConfig(ctx)
// Skip recompiling the boot image for the second sanitization phase. We'll get separate paths
// and invalidate first-stage artifacts which are crucial to SANITIZE_LITE builds.
// Note: this is technically incorrect. Compiled code contains stack checks which may depend
// on ASAN settings.
if len(ctx.Config().SanitizeDevice()) == 1 &&
ctx.Config().SanitizeDevice()[0] == "address" &&
global.SanitizeLite {
return
}
// Always create the default boot image first, to get a unique profile rule for all images.
d.defaultBootImage = buildBootImage(ctx, defaultBootImageConfig(ctx))
if global.GenerateApexImage {
d.otherImages = append(d.otherImages, buildBootImage(ctx, apexBootImageConfig(ctx)))
}
dumpOatRules(ctx, d.defaultBootImage)
}
// buildBootImage takes a bootImageConfig, creates rules to build it, and returns a *bootImage.
func buildBootImage(ctx android.SingletonContext, config bootImageConfig) *bootImage {
global := dexpreoptGlobalConfig(ctx)
image := newBootImage(ctx, config)
bootDexJars := make(android.Paths, len(image.modules))
ctx.VisitAllModules(func(module android.Module) {
// Collect dex jar paths for the modules listed above.
if j, ok := module.(interface{ DexJar() android.Path }); ok {
name := ctx.ModuleName(module)
if i := android.IndexList(name, image.modules); i != -1 {
bootDexJars[i] = j.DexJar()
}
}
})
var missingDeps []string
// Ensure all modules were converted to paths
for i := range bootDexJars {
if bootDexJars[i] == nil {
if ctx.Config().AllowMissingDependencies() {
missingDeps = append(missingDeps, image.modules[i])
bootDexJars[i] = android.PathForOutput(ctx, "missing")
} else {
ctx.Errorf("failed to find dex jar path for module %q",
image.modules[i])
}
}
}
// The path to bootclasspath dex files needs to be known at module GenerateAndroidBuildAction time, before
// the bootclasspath modules have been compiled. Copy the dex jars there so the module rules that have
// already been set up can find them.
for i := range bootDexJars {
ctx.Build(pctx, android.BuildParams{
Rule: android.Cp,
Input: bootDexJars[i],
Output: image.dexPaths[i],
})
}
profile := bootImageProfileRule(ctx, image, missingDeps)
var allFiles android.Paths
if !global.DisablePreopt {
for _, target := range image.targets {
files := buildBootImageRuleForArch(ctx, image, target.Arch.ArchType, profile, missingDeps)
allFiles = append(allFiles, files.Paths()...)
}
}
if image.zip != nil {
rule := android.NewRuleBuilder()
rule.Command().
Tool(ctx.Config().HostToolPath(ctx, "soong_zip")).
FlagWithOutput("-o ", image.zip).
FlagWithArg("-C ", image.dir.String()).
FlagWithInputList("-f ", allFiles, " -f ")
rule.Build(pctx, ctx, "zip_"+image.name, "zip "+image.name+" image")
}
return image
}
func buildBootImageRuleForArch(ctx android.SingletonContext, image *bootImage,
arch android.ArchType, profile android.Path, missingDeps []string) android.WritablePaths {
global := dexpreoptGlobalConfig(ctx)
symbolsDir := image.symbolsDir.Join(ctx, "system/framework", arch.String())
symbolsFile := symbolsDir.Join(ctx, image.name+".oat")
outputDir := image.dir.Join(ctx, "system/framework", arch.String())
outputPath := image.images[arch]
oatLocation := pathtools.ReplaceExtension(dexpreopt.PathToLocation(outputPath, arch), "oat")
rule := android.NewRuleBuilder()
rule.MissingDeps(missingDeps)
rule.Command().Text("mkdir").Flag("-p").Flag(symbolsDir.String())
rule.Command().Text("rm").Flag("-f").
Flag(symbolsDir.Join(ctx, "*.art").String()).
Flag(symbolsDir.Join(ctx, "*.oat").String()).
Flag(symbolsDir.Join(ctx, "*.invocation").String())
rule.Command().Text("rm").Flag("-f").
Flag(outputDir.Join(ctx, "*.art").String()).
Flag(outputDir.Join(ctx, "*.oat").String()).
Flag(outputDir.Join(ctx, "*.invocation").String())
cmd := rule.Command()
extraFlags := ctx.Config().Getenv("ART_BOOT_IMAGE_EXTRA_ARGS")
if extraFlags == "" {
// Use ANDROID_LOG_TAGS to suppress most logging by default...
cmd.Text(`ANDROID_LOG_TAGS="*:e"`)
} else {
// ...unless the boot image is generated specifically for testing, then allow all logging.
cmd.Text(`ANDROID_LOG_TAGS="*:v"`)
}
invocationPath := outputPath.ReplaceExtension(ctx, "invocation")
cmd.Tool(global.Tools.Dex2oat).
Flag("--avoid-storing-invocation").
FlagWithOutput("--write-invocation-to=", invocationPath).ImplicitOutput(invocationPath).
Flag("--runtime-arg").FlagWithArg("-Xms", global.Dex2oatImageXms).
Flag("--runtime-arg").FlagWithArg("-Xmx", global.Dex2oatImageXmx)
if profile != nil {
cmd.FlagWithArg("--compiler-filter=", "speed-profile")
cmd.FlagWithInput("--profile-file=", profile)
} else if global.PreloadedClasses.Valid() {
cmd.FlagWithInput("--image-classes=", global.PreloadedClasses.Path())
}
if global.DirtyImageObjects.Valid() {
cmd.FlagWithInput("--dirty-image-objects=", global.DirtyImageObjects.Path())
}
cmd.
FlagForEachInput("--dex-file=", image.dexPaths.Paths()).
FlagForEachArg("--dex-location=", image.dexLocations).
Flag("--generate-debug-info").
Flag("--generate-build-id").
FlagWithOutput("--oat-symbols=", symbolsFile).
Flag("--strip").
FlagWithOutput("--oat-file=", outputPath.ReplaceExtension(ctx, "oat")).
FlagWithArg("--oat-location=", oatLocation).
FlagWithOutput("--image=", outputPath).
FlagWithArg("--base=", ctx.Config().LibartImgDeviceBaseAddress()).
FlagWithArg("--instruction-set=", arch.String()).
FlagWithArg("--instruction-set-variant=", global.CpuVariant[arch]).
FlagWithArg("--instruction-set-features=", global.InstructionSetFeatures[arch]).
FlagWithArg("--android-root=", global.EmptyDirectory).
FlagWithArg("--no-inline-from=", "core-oj.jar").
Flag("--abort-on-hard-verifier-error")
if global.BootFlags != "" {
cmd.Flag(global.BootFlags)
}
if extraFlags != "" {
cmd.Flag(extraFlags)
}
cmd.Textf(`|| ( echo %s ; false )`, proptools.ShellEscape(failureMessage))
installDir := filepath.Join("/system/framework", arch.String())
vdexInstallDir := filepath.Join("/system/framework")
var extraFiles android.WritablePaths
var vdexInstalls android.RuleBuilderInstalls
var unstrippedInstalls android.RuleBuilderInstalls
var zipFiles android.WritablePaths
// dex preopt on the bootclasspath produces multiple files. The first dex file
// is converted into to 'name'.art (to match the legacy assumption that 'name'.art
// exists), and the rest are converted to 'name'-<jar>.art.
// In addition, each .art file has an associated .oat and .vdex file, and an
// unstripped .oat file
for i, m := range image.modules {
name := image.name
if i != 0 {
name += "-" + m
}
art := outputDir.Join(ctx, name+".art")
oat := outputDir.Join(ctx, name+".oat")
vdex := outputDir.Join(ctx, name+".vdex")
unstrippedOat := symbolsDir.Join(ctx, name+".oat")
extraFiles = append(extraFiles, art, oat, vdex, unstrippedOat)
zipFiles = append(zipFiles, art, oat, vdex)
// Install the .oat and .art files.
rule.Install(art, filepath.Join(installDir, art.Base()))
rule.Install(oat, filepath.Join(installDir, oat.Base()))
// The vdex files are identical between architectures, install them to a shared location. The Make rules will
// only use the install rules for one architecture, and will create symlinks into the architecture-specific
// directories.
vdexInstalls = append(vdexInstalls,
android.RuleBuilderInstall{vdex, filepath.Join(vdexInstallDir, vdex.Base())})
// Install the unstripped oat files. The Make rules will put these in $(TARGET_OUT_UNSTRIPPED)
unstrippedInstalls = append(unstrippedInstalls,
android.RuleBuilderInstall{unstrippedOat, filepath.Join(installDir, unstrippedOat.Base())})
}
cmd.ImplicitOutputs(extraFiles)
rule.Build(pctx, ctx, image.name+"JarsDexpreopt_"+arch.String(), "dexpreopt "+image.name+" jars "+arch.String())
// save output and installed files for makevars
image.installs[arch] = rule.Installs()
image.vdexInstalls[arch] = vdexInstalls
image.unstrippedInstalls[arch] = unstrippedInstalls
return zipFiles
}
const failureMessage = `ERROR: Dex2oat failed to compile a boot image.
It is likely that the boot classpath is inconsistent.
Rebuild with ART_BOOT_IMAGE_EXTRA_ARGS="--runtime-arg -verbose:verifier" to see verification errors.`
func bootImageProfileRule(ctx android.SingletonContext, image *bootImage, missingDeps []string) android.WritablePath {
global := dexpreoptGlobalConfig(ctx)
if !global.UseProfileForBootImage || ctx.Config().IsPdkBuild() || ctx.Config().UnbundledBuild() {
return nil
}
return ctx.Config().Once(bootImageProfileRuleKey, func() interface{} {
tools := global.Tools
rule := android.NewRuleBuilder()
rule.MissingDeps(missingDeps)
var bootImageProfile android.Path
if len(global.BootImageProfiles) > 1 {
combinedBootImageProfile := image.dir.Join(ctx, "boot-image-profile.txt")
rule.Command().Text("cat").Inputs(global.BootImageProfiles).Text(">").Output(combinedBootImageProfile)
bootImageProfile = combinedBootImageProfile
} else if len(global.BootImageProfiles) == 1 {
bootImageProfile = global.BootImageProfiles[0]
} else {
// If not set, use the default. Some branches like master-art-host don't have frameworks/base, so manually
// handle the case that the default is missing. Those branches won't attempt to build the profile rule,
// and if they do they'll get a missing deps error.
defaultProfile := "frameworks/base/config/boot-image-profile.txt"
path := android.ExistentPathForSource(ctx, defaultProfile)
if path.Valid() {
bootImageProfile = path.Path()
} else {
missingDeps = append(missingDeps, defaultProfile)
bootImageProfile = android.PathForOutput(ctx, "missing")
}
}
profile := image.dir.Join(ctx, "boot.prof")
rule.Command().
Text(`ANDROID_LOG_TAGS="*:e"`).
Tool(tools.Profman).
FlagWithInput("--create-profile-from=", bootImageProfile).
FlagForEachInput("--apk=", image.dexPaths.Paths()).
FlagForEachArg("--dex-location=", image.dexLocations).
FlagWithOutput("--reference-profile-file=", profile)
rule.Install(profile, "/system/etc/boot-image.prof")
rule.Build(pctx, ctx, "bootJarsProfile", "profile boot jars")
image.profileInstalls = rule.Installs()
return profile
}).(android.WritablePath)
}
var bootImageProfileRuleKey = android.NewOnceKey("bootImageProfileRule")
func dumpOatRules(ctx android.SingletonContext, image *bootImage) {
var archs []android.ArchType
for arch := range image.images {
archs = append(archs, arch)
}
sort.Slice(archs, func(i, j int) bool { return archs[i].String() < archs[j].String() })
var allPhonies android.Paths
for _, arch := range archs {
// Create a rule to call oatdump.
output := android.PathForOutput(ctx, "boot."+arch.String()+".oatdump.txt")
rule := android.NewRuleBuilder()
rule.Command().
// TODO: for now, use the debug version for better error reporting
Tool(ctx.Config().HostToolPath(ctx, "oatdumpd")).
FlagWithInputList("--runtime-arg -Xbootclasspath:", image.dexPaths.Paths(), ":").
FlagWithList("--runtime-arg -Xbootclasspath-locations:", image.dexLocations, ":").
FlagWithArg("--image=", dexpreopt.PathToLocation(image.images[arch], arch)).Implicit(image.images[arch]).
FlagWithOutput("--output=", output).
FlagWithArg("--instruction-set=", arch.String())
rule.Build(pctx, ctx, "dump-oat-boot-"+arch.String(), "dump oat boot "+arch.String())
// Create a phony rule that depends on the output file and prints the path.
phony := android.PathForPhony(ctx, "dump-oat-boot-"+arch.String())
rule = android.NewRuleBuilder()
rule.Command().
Implicit(output).
ImplicitOutput(phony).
Text("echo").FlagWithArg("Output in ", output.String())
rule.Build(pctx, ctx, "phony-dump-oat-boot-"+arch.String(), "dump oat boot "+arch.String())
allPhonies = append(allPhonies, phony)
}
phony := android.PathForPhony(ctx, "dump-oat-boot")
ctx.Build(pctx, android.BuildParams{
Rule: android.Phony,
Output: phony,
Inputs: allPhonies,
Description: "dump-oat-boot",
})
}
func writeGlobalConfigForMake(ctx android.SingletonContext, path android.WritablePath) {
data := dexpreoptGlobalConfigRaw(ctx).data
ctx.Build(pctx, android.BuildParams{
Rule: android.WriteFile,
Output: path,
Args: map[string]string{
"content": string(data),
},
})
}
// Export paths for default boot image to Make
func (d *dexpreoptBootJars) MakeVars(ctx android.MakeVarsContext) {
if d.dexpreoptConfigForMake != nil {
ctx.Strict("DEX_PREOPT_CONFIG_FOR_MAKE", d.dexpreoptConfigForMake.String())
}
image := d.defaultBootImage
if image != nil {
ctx.Strict("DEXPREOPT_IMAGE_PROFILE_BUILT_INSTALLED", image.profileInstalls.String())
ctx.Strict("DEXPREOPT_BOOTCLASSPATH_DEX_FILES", strings.Join(image.dexPaths.Strings(), " "))
ctx.Strict("DEXPREOPT_BOOTCLASSPATH_DEX_LOCATIONS", strings.Join(image.dexLocations, " "))
ctx.Strict("DEXPREOPT_IMAGE_ZIP_"+image.name, image.zip.String())
var imageNames []string
for _, current := range append(d.otherImages, image) {
imageNames = append(imageNames, current.name)
var arches []android.ArchType
for arch, _ := range current.images {
arches = append(arches, arch)
}
sort.Slice(arches, func(i, j int) bool { return arches[i].String() < arches[j].String() })
for _, arch := range arches {
ctx.Strict("DEXPREOPT_IMAGE_VDEX_BUILT_INSTALLED_"+current.name+"_"+arch.String(), current.vdexInstalls[arch].String())
ctx.Strict("DEXPREOPT_IMAGE_"+current.name+"_"+arch.String(), current.images[arch].String())
ctx.Strict("DEXPREOPT_IMAGE_BUILT_INSTALLED_"+current.name+"_"+arch.String(), current.installs[arch].String())
ctx.Strict("DEXPREOPT_IMAGE_UNSTRIPPED_BUILT_INSTALLED_"+current.name+"_"+arch.String(), current.unstrippedInstalls[arch].String())
if current.zip != nil {
}
}
}
ctx.Strict("DEXPREOPT_IMAGE_NAMES", strings.Join(imageNames, " "))
}
}