Add support for generating boot profiles. (e710242b) · Commits · e / os / android_build_soong

dexpreopt/config.go

+1 −0

Original line number	Diff line number	Diff line
		@@ -113,6 +113,7 @@ type ModuleConfig struct {

		ProfileClassListing android.OptionalPath
		ProfileIsTextListing bool
		ProfileBootListing android.OptionalPath

		EnforceUsesLibraries bool
		PresentOptionalUsesLibraries []string

dexpreopt/dexpreopt.go

+36 −0

Original line number	Diff line number	Diff line
		@@ -108,11 +108,15 @@ func GenerateDexpreoptRule(ctx android.PathContext,
		rule = android.NewRuleBuilder()

		generateProfile := module.ProfileClassListing.Valid() && !global.DisableGenerateProfile
		generateBootProfile := module.ProfileBootListing.Valid() && !global.DisableGenerateProfile

		var profile android.WritablePath
		if generateProfile {
		profile = profileCommand(ctx, global, module, rule)
		}
		if generateBootProfile {
		bootProfileCommand(ctx, global, module, rule)
		}

		if !dexpreoptDisabled(global, module) {
		// Don't preopt individual boot jars, they will be preopted together.
		@@ -190,6 +194,38 @@ func profileCommand(ctx android.PathContext, global GlobalConfig, module ModuleC
		return profilePath
		}

		func bootProfileCommand(ctx android.PathContext, global GlobalConfig, module ModuleConfig,
		rule *android.RuleBuilder) android.WritablePath {

		profilePath := module.BuildPath.InSameDir(ctx, "profile.bprof")
		profileInstalledPath := module.DexLocation + ".bprof"

		if !module.ProfileIsTextListing {
		rule.Command().FlagWithOutput("touch ", profilePath)
		}

		cmd := rule.Command().
		Text(`ANDROID_LOG_TAGS="*:e"`).
		Tool(global.Tools.Profman)

		// The profile is a test listing of methods.
		// We need to generate the actual binary profile.
		cmd.FlagWithInput("--create-profile-from=", module.ProfileBootListing.Path())

		cmd.
		Flag("--generate-boot-profile").
		FlagWithInput("--apk=", module.DexPath).
		Flag("--dex-location="+module.DexLocation).
		FlagWithOutput("--reference-profile-file=", profilePath)

		if !module.ProfileIsTextListing {
		cmd.Text(fmt.Sprintf(`\|\| echo "Profile out of date for %s"`, module.DexPath))
		}
		rule.Install(profilePath, profileInstalledPath)

		return profilePath
		}

		func dexpreoptCommand(ctx android.PathContext, global GlobalConfig, module ModuleConfig, rule *android.RuleBuilder,
		arch android.ArchType, profile, bootImage android.Path, bootImageDeps android.Paths, appImage, generateDM bool) {

java/dexpreopt.go

+4 −0

Original line number	Diff line number	Diff line
		@@ -143,6 +143,7 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Mo
		strippedDexJarFile := android.PathForModuleOut(ctx, "dexpreopt", dexJarFile.Base())

		var profileClassListing android.OptionalPath
		var profileBootListing android.OptionalPath
		profileIsTextListing := false
		if BoolDefault(d.dexpreoptProperties.Dex_preopt.Profile_guided, true) {
		// If dex_preopt.profile_guided is not set, default it based on the existence of the
		@@ -150,6 +151,8 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Mo
		if String(d.dexpreoptProperties.Dex_preopt.Profile) != "" {
		profileClassListing = android.OptionalPathForPath(
		android.PathForModuleSrc(ctx, String(d.dexpreoptProperties.Dex_preopt.Profile)))
		profileBootListing = android.ExistentPathForSource(ctx,
		ctx.ModuleDir(), String(d.dexpreoptProperties.Dex_preopt.Profile)+"-boot")
		profileIsTextListing = true
		} else {
		profileClassListing = android.ExistentPathForSource(ctx,
		@@ -169,6 +172,7 @@ func (d *dexpreopter) dexpreopt(ctx android.ModuleContext, dexJarFile android.Mo

		ProfileClassListing: profileClassListing,
		ProfileIsTextListing: profileIsTextListing,
		ProfileBootListing: profileBootListing,

		EnforceUsesLibraries: d.enforceUsesLibs,
		PresentOptionalUsesLibraries: d.optionalUsesLibs,

java/dexpreopt_bootjars.go

+47 −0

Original line number	Diff line number	Diff line
		@@ -216,6 +216,7 @@ func buildBootImage(ctx android.SingletonContext, config bootImageConfig) *bootI
		}

		profile := bootImageProfileRule(ctx, image, missingDeps)
		bootFrameworkProfileRule(ctx, image, missingDeps)

		var allFiles android.Paths

		@@ -424,6 +425,52 @@ func bootImageProfileRule(ctx android.SingletonContext, image *bootImage, missin

		var bootImageProfileRuleKey = android.NewOnceKey("bootImageProfileRule")

		func bootFrameworkProfileRule(ctx android.SingletonContext, image *bootImage, missingDeps []string) android.WritablePath {
		global := dexpreoptGlobalConfig(ctx)

		if global.DisableGenerateProfile \|\| ctx.Config().IsPdkBuild() \|\| ctx.Config().UnbundledBuild() {
		return nil
		}
		return ctx.Config().Once(bootFrameworkProfileRuleKey, func() interface{} {
		tools := global.Tools

		rule := android.NewRuleBuilder()
		rule.MissingDeps(missingDeps)

		// 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-profile.txt"
		path := android.ExistentPathForSource(ctx, defaultProfile)
		var bootFrameworkProfile android.Path
		if path.Valid() {
		bootFrameworkProfile = path.Path()
		} else {
		missingDeps = append(missingDeps, defaultProfile)
		bootFrameworkProfile = android.PathForOutput(ctx, "missing")
		}

		profile := image.dir.Join(ctx, "boot.bprof")

		rule.Command().
		Text(`ANDROID_LOG_TAGS="*:e"`).
		Tool(tools.Profman).
		Flag("--generate-boot-profile").
		FlagWithInput("--create-profile-from=", bootFrameworkProfile).
		FlagForEachInput("--apk=", image.dexPaths.Paths()).
		FlagForEachArg("--dex-location=", image.dexLocations).
		FlagWithOutput("--reference-profile-file=", profile)

		rule.Install(profile, "/system/etc/boot-image.bprof")
		rule.Build(pctx, ctx, "bootFrameworkProfile", "profile boot framework jars")
		image.profileInstalls = append(image.profileInstalls, rule.Installs()...)

		return profile
		}).(android.WritablePath)
		}

		var bootFrameworkProfileRuleKey = android.NewOnceKey("bootFrameworkProfileRule")

		func dumpOatRules(ctx android.SingletonContext, image *bootImage) {
		var archs []android.ArchType
		for arch := range image.images {