Add a new option compilerFilter to bootImageConfig.

After this change, the compiler filter can be specified by the option,
and profiles will not be used if the compiler filter is not
a profile-guided one.

This change also allows preloadedClassesFile to be empty.

Bug: 269230245
Test: m
Change-Id: I65e6b7209d2f0510bcc784a62623ab402b7f96bb

java/bootclasspath_fragment.go

@@ -1291,7 +1291,7 @@ func (module *PrebuiltBootclasspathFragmentModule) produceBootImageFiles(ctx and
 		}
 		return bootImageFiles
 	} else {
-		if profile == nil {
+		if profile == nil && imageConfig.isProfileGuided() {
 			ctx.ModuleErrorf("Unable to produce boot image files: neither boot image files nor profiles exists in the prebuilt apex")
 			return bootImageOutputs{}
 		}

java/dexpreopt_bootjars.go

@@ -287,6 +287,9 @@ type bootImageConfig struct {
 
 	// Path of the preloaded classes file.
 	preloadedClassesFile string
+
+	// The "--compiler-filter" argument.
+	compilerFilter string
 }
 
 // Target-dependent description of a boot image.
@@ -443,6 +446,10 @@ func (image *bootImageVariant) imageLocations() (imageLocationsOnHost []string,
 		append(imageLocationsOnDevice, dexpreopt.PathStringToLocation(image.imagePathOnDevice, image.target.Arch.ArchType))
 }
 
+func (image *bootImageConfig) isProfileGuided() bool {
+	return image.compilerFilter == "speed-profile"
+}
+
 func dexpreoptBootJarsFactory() android.SingletonModule {
 	m := &dexpreoptBootJars{}
 	android.InitAndroidModule(m)
@@ -721,11 +728,13 @@ func buildBootImageVariant(ctx android.ModuleContext, image *bootImageVariant, p
 		cmd.FlagWithArg("--base=", ctx.Config().LibartImgDeviceBaseAddress())
 	}
 
-	// We always expect a preloaded classes file to be available. However, if we cannot find it, it's
+	if len(image.preloadedClassesFile) > 0 {
-	// OK to not pass the flag to dex2oat.
+		// We always expect a preloaded classes file to be available. However, if we cannot find it, it's
-	preloadedClassesPath := android.ExistentPathForSource(ctx, image.preloadedClassesFile)
+		// OK to not pass the flag to dex2oat.
-	if preloadedClassesPath.Valid() {
+		preloadedClassesPath := android.ExistentPathForSource(ctx, image.preloadedClassesFile)
-		cmd.FlagWithInput("--preloaded-classes=", preloadedClassesPath.Path())
+		if preloadedClassesPath.Valid() {
+			cmd.FlagWithInput("--preloaded-classes=", preloadedClassesPath.Path())
+		}
 	}
 
 	cmd.
@@ -743,7 +752,8 @@ func buildBootImageVariant(ctx android.ModuleContext, image *bootImageVariant, p
 		FlagWithArg("--android-root=", global.EmptyDirectory).
 		FlagWithArg("--no-inline-from=", "core-oj.jar").
 		Flag("--force-determinism").
-		Flag("--abort-on-hard-verifier-error")
+		Flag("--abort-on-hard-verifier-error").
+		FlagWithArg("--compiler-filter=", image.compilerFilter)
 
 	// Use the default variant/features for host builds.
 	// The map below contains only device CPU info (which might be x86 on some devices).
@@ -828,6 +838,10 @@ 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.ModuleContext, image *bootImageConfig) android.WritablePath {
+	if !image.isProfileGuided() {
+		return nil
+	}
+
 	globalSoong := dexpreopt.GetGlobalSoongConfig(ctx)
 	global := dexpreopt.GetGlobalConfig(ctx)
 

java/dexpreopt_config.go

@@ -63,6 +63,7 @@ func genBootImageConfigRaw(ctx android.PathContext) map[string]*bootImageConfig
 			profileInstallPathInApex: "etc/boot-image.prof",
 			modules:                  artModules,
 			preloadedClassesFile:     "art/build/boot/preloaded-classes",
+			compilerFilter:           "speed-profile",
 		}
 
 		// Framework config for the boot image extension.
@@ -76,6 +77,7 @@ func genBootImageConfigRaw(ctx android.PathContext) map[string]*bootImageConfig
 			installDirOnDevice:   frameworkSubdir,
 			modules:              frameworkModules,
 			preloadedClassesFile: "frameworks/base/config/preloaded-classes",
+			compilerFilter:       "speed-profile",
 		}
 
 		return map[string]*bootImageConfig{