Merge "rust: Add libstd linkage mutator for rlibs."
diff --git a/android/arch.go b/android/arch.go
index d055a6f..4141138 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -125,6 +125,7 @@
 	Arm64: {
 		"armv8_a",
 		"armv8_2a",
+		"armv8-2a-dotprod",
 		"cortex-a53",
 		"cortex-a55",
 		"cortex-a72",
@@ -172,6 +173,9 @@
 	Arm: {
 		"neon",
 	},
+	Arm64: {
+		"dotprod",
+	},
 	X86: {
 		"ssse3",
 		"sse4",
@@ -209,6 +213,11 @@
 			"neon",
 		},
 	},
+	Arm64: {
+		"armv8-2a-dotprod": {
+			"dotprod",
+		},
+	},
 	X86: {
 		"amberlake": {
 			"ssse3",
@@ -1434,20 +1443,15 @@
 			//         key: value,
 			//     },
 			// },
-			// TODO(ccross): is this still necessary with native bridge?
 			if os.Class == Device {
-				if (arch.ArchType == X86 && (hasArmAbi(arch) ||
-					hasArmAndroidArch(ctx.Config().Targets[Android]))) ||
-					(arch.ArchType == Arm &&
-						hasX86AndroidArch(ctx.Config().Targets[Android])) {
+				if arch.ArchType == X86 && (hasArmAbi(arch) ||
+					hasArmAndroidArch(ctx.Config().Targets[Android])) {
 					field := "Arm_on_x86"
 					prefix := "target.arm_on_x86"
 					m.appendProperties(ctx, genProps, targetProp, field, prefix)
 				}
-				if (arch.ArchType == X86_64 && (hasArmAbi(arch) ||
-					hasArmAndroidArch(ctx.Config().Targets[Android]))) ||
-					(arch.ArchType == Arm &&
-						hasX8664AndroidArch(ctx.Config().Targets[Android])) {
+				if arch.ArchType == X86_64 && (hasArmAbi(arch) ||
+					hasArmAndroidArch(ctx.Config().Targets[Android])) {
 					field := "Arm_on_x86_64"
 					prefix := "target.arm_on_x86_64"
 					m.appendProperties(ctx, genProps, targetProp, field, prefix)
@@ -1594,27 +1598,7 @@
 // hasArmArch returns true if targets has at least non-native_bridge arm Android arch
 func hasArmAndroidArch(targets []Target) bool {
 	for _, target := range targets {
-		if target.Os == Android && target.Arch.ArchType == Arm && target.NativeBridge == NativeBridgeDisabled {
-			return true
-		}
-	}
-	return false
-}
-
-// hasX86Arch returns true if targets has at least x86 Android arch
-func hasX86AndroidArch(targets []Target) bool {
-	for _, target := range targets {
-		if target.Os == Android && target.Arch.ArchType == X86 {
-			return true
-		}
-	}
-	return false
-}
-
-// hasX8664Arch returns true if targets has at least x86_64 Android arch
-func hasX8664AndroidArch(targets []Target) bool {
-	for _, target := range targets {
-		if target.Os == Android && target.Arch.ArchType == X86_64 {
+		if target.Os == Android && target.Arch.ArchType == Arm {
 			return true
 		}
 	}
@@ -1653,9 +1637,10 @@
 		{"arm64", "armv8-a", "kryo", []string{"arm64-v8a"}},
 		{"arm64", "armv8-a", "exynos-m1", []string{"arm64-v8a"}},
 		{"arm64", "armv8-a", "exynos-m2", []string{"arm64-v8a"}},
-		{"arm64", "armv8-2a", "cortex-a75", []string{"arm64-v8a"}},
-		{"arm64", "armv8-2a", "cortex-a76", []string{"arm64-v8a"}},
 		{"arm64", "armv8-2a", "kryo385", []string{"arm64-v8a"}},
+		{"arm64", "armv8-2a-dotprod", "cortex-a55", []string{"arm64-v8a"}},
+		{"arm64", "armv8-2a-dotprod", "cortex-a75", []string{"arm64-v8a"}},
+		{"arm64", "armv8-2a-dotprod", "cortex-a76", []string{"arm64-v8a"}},
 		{"x86", "", "", []string{"x86"}},
 		{"x86", "atom", "", []string{"x86"}},
 		{"x86", "haswell", "", []string{"x86"}},
diff --git a/android/module.go b/android/module.go
index 337ae40..5bc7a17 100644
--- a/android/module.go
+++ b/android/module.go
@@ -61,18 +61,44 @@
 // EarlyModuleContext provides methods that can be called early, as soon as the properties have
 // been parsed into the module and before any mutators have run.
 type EarlyModuleContext interface {
+	// Module returns the current module as a Module.  It should rarely be necessary, as the module already has a
+	// reference to itself.
 	Module() Module
+
+	// ModuleName returns the name of the module.  This is generally the value that was returned by Module.Name() when
+	// the module was created, but may have been modified by calls to BaseMutatorContext.Rename.
 	ModuleName() string
+
+	// ModuleDir returns the path to the directory that contains the definition of the module.
 	ModuleDir() string
+
+	// ModuleType returns the name of the module type that was used to create the module, as specified in
+	// RegisterModuleType.
 	ModuleType() string
+
+	// BlueprintFile returns the name of the blueprint file that contains the definition of this
+	// module.
 	BlueprintsFile() string
 
+	// ContainsProperty returns true if the specified property name was set in the module definition.
 	ContainsProperty(name string) bool
+
+	// Errorf reports an error at the specified position of the module definition file.
 	Errorf(pos scanner.Position, fmt string, args ...interface{})
+
+	// ModuleErrorf reports an error at the line number of the module type in the module definition.
 	ModuleErrorf(fmt string, args ...interface{})
+
+	// PropertyErrorf reports an error at the line number of a property in the module definition.
 	PropertyErrorf(property, fmt string, args ...interface{})
+
+	// Failed returns true if any errors have been reported.  In most cases the module can continue with generating
+	// build rules after an error, allowing it to report additional errors in a single run, but in cases where the error
+	// has prevented the module from creating necessary data it can return early when Failed returns true.
 	Failed() bool
 
+	// AddNinjaFileDeps adds dependencies on the specified files to the rule that creates the ninja manifest.  The
+	// primary builder will be rerun whenever the specified files are modified.
 	AddNinjaFileDeps(deps ...string)
 
 	DeviceSpecific() bool
@@ -98,6 +124,8 @@
 	IsSymlink(path Path) bool
 	Readlink(path Path) string
 
+	// Namespace returns the Namespace object provided by the NameInterface set by Context.SetNameInterface, or the
+	// default SimpleNameInterface if Context.SetNameInterface was not called.
 	Namespace() *Namespace
 }
 
@@ -110,29 +138,109 @@
 
 	blueprintBaseModuleContext() blueprint.BaseModuleContext
 
+	// OtherModuleName returns the name of another Module.  See BaseModuleContext.ModuleName for more information.
+	// It is intended for use inside the visit functions of Visit* and WalkDeps.
 	OtherModuleName(m blueprint.Module) string
+
+	// OtherModuleDir returns the directory of another Module.  See BaseModuleContext.ModuleDir for more information.
+	// It is intended for use inside the visit functions of Visit* and WalkDeps.
 	OtherModuleDir(m blueprint.Module) string
+
+	// OtherModuleErrorf reports an error on another Module.  See BaseModuleContext.ModuleErrorf for more information.
+	// It is intended for use inside the visit functions of Visit* and WalkDeps.
 	OtherModuleErrorf(m blueprint.Module, fmt string, args ...interface{})
+
+	// OtherModuleDependencyTag returns the dependency tag used to depend on a module, or nil if there is no dependency
+	// on the module.  When called inside a Visit* method with current module being visited, and there are multiple
+	// dependencies on the module being visited, it returns the dependency tag used for the current dependency.
 	OtherModuleDependencyTag(m blueprint.Module) blueprint.DependencyTag
+
+	// OtherModuleExists returns true if a module with the specified name exists, as determined by the NameInterface
+	// passed to Context.SetNameInterface, or SimpleNameInterface if it was not called.
 	OtherModuleExists(name string) bool
+
+	// OtherModuleDependencyVariantExists returns true if a module with the
+	// specified name and variant exists. The variant must match the given
+	// variations. It must also match all the non-local variations of the current
+	// module. In other words, it checks for the module AddVariationDependencies
+	// would add a dependency on with the same arguments.
 	OtherModuleDependencyVariantExists(variations []blueprint.Variation, name string) bool
+
+	// OtherModuleReverseDependencyVariantExists returns true if a module with the
+	// specified name exists with the same variations as the current module. In
+	// other words, it checks for the module AddReverseDependency would add a
+	// dependency on with the same argument.
 	OtherModuleReverseDependencyVariantExists(name string) bool
+
+	// OtherModuleType returns the type of another Module.  See BaseModuleContext.ModuleType for more information.
+	// It is intended for use inside the visit functions of Visit* and WalkDeps.
 	OtherModuleType(m blueprint.Module) string
 
 	GetDirectDepsWithTag(tag blueprint.DependencyTag) []Module
+
+	// GetDirectDepWithTag returns the Module the direct dependency with the specified name, or nil if
+	// none exists.  It panics if the dependency does not have the specified tag.  It skips any
+	// dependencies that are not an android.Module.
 	GetDirectDepWithTag(name string, tag blueprint.DependencyTag) blueprint.Module
+
+	// GetDirectDep returns the Module and DependencyTag for the  direct dependency with the specified
+	// name, or nil if none exists.  If there are multiple dependencies on the same module it returns
+	// the first DependencyTag.  It skips any dependencies that are not an android.Module.
 	GetDirectDep(name string) (blueprint.Module, blueprint.DependencyTag)
 
+	// VisitDirectDepsBlueprint calls visit for each direct dependency.  If there are multiple
+	// direct dependencies on the same module visit will be called multiple times on that module
+	// and OtherModuleDependencyTag will return a different tag for each.
+	//
+	// The Module passed to the visit function should not be retained outside of the visit
+	// function, it may be invalidated by future mutators.
 	VisitDirectDepsBlueprint(visit func(blueprint.Module))
+
+	// VisitDirectDeps calls visit for each direct dependency.  If there are multiple
+	// direct dependencies on the same module visit will be called multiple times on that module
+	// and OtherModuleDependencyTag will return a different tag for each.  It skips any
+	// dependencies that are not an android.Module.
+	//
+	// The Module passed to the visit function should not be retained outside of the visit
+	// function, it may be invalidated by future mutators.
 	VisitDirectDeps(visit func(Module))
+
 	VisitDirectDepsWithTag(tag blueprint.DependencyTag, visit func(Module))
+
+	// VisitDirectDepsIf calls pred for each direct dependency, and if pred returns true calls visit.  If there are
+	// multiple direct dependencies on the same module pred and visit will be called multiple times on that module and
+	// OtherModuleDependencyTag will return a different tag for each.  It skips any
+	// dependencies that are not an android.Module.
+	//
+	// The Module passed to the visit function should not be retained outside of the visit function, it may be
+	// invalidated by future mutators.
 	VisitDirectDepsIf(pred func(Module) bool, visit func(Module))
 	// Deprecated: use WalkDeps instead to support multiple dependency tags on the same module
 	VisitDepsDepthFirst(visit func(Module))
 	// Deprecated: use WalkDeps instead to support multiple dependency tags on the same module
 	VisitDepsDepthFirstIf(pred func(Module) bool, visit func(Module))
+
+	// WalkDeps calls visit for each transitive dependency, traversing the dependency tree in top down order.  visit may
+	// be called multiple times for the same (child, parent) pair if there are multiple direct dependencies between the
+	// child and parent with different tags.  OtherModuleDependencyTag will return the tag for the currently visited
+	// (child, parent) pair.  If visit returns false WalkDeps will not continue recursing down to child.  It skips
+	// any dependencies that are not an android.Module.
+	//
+	// The Modules passed to the visit function should not be retained outside of the visit function, they may be
+	// invalidated by future mutators.
 	WalkDeps(visit func(Module, Module) bool)
+
+	// WalkDepsBlueprint calls visit for each transitive dependency, traversing the dependency
+	// tree in top down order.  visit may be called multiple times for the same (child, parent)
+	// pair if there are multiple direct dependencies between the child and parent with different
+	// tags.  OtherModuleDependencyTag will return the tag for the currently visited
+	// (child, parent) pair.  If visit returns false WalkDeps will not continue recursing down
+	// to child.
+	//
+	// The Modules passed to the visit function should not be retained outside of the visit function, they may be
+	// invalidated by future mutators.
 	WalkDepsBlueprint(visit func(blueprint.Module, blueprint.Module) bool)
+
 	// GetWalkPath is supposed to be called in visit function passed in WalkDeps()
 	// and returns a top-down dependency path from a start module to current child module.
 	GetWalkPath() []Module
@@ -216,10 +324,26 @@
 	// additional dependencies.
 	Phony(phony string, deps ...Path)
 
+	// PrimaryModule returns the first variant of the current module.  Variants of a module are always visited in
+	// order by mutators and GenerateBuildActions, so the data created by the current mutator can be read from the
+	// Module returned by PrimaryModule without data races.  This can be used to perform singleton actions that are
+	// only done once for all variants of a module.
 	PrimaryModule() Module
+
+	// FinalModule returns the last variant of the current module.  Variants of a module are always visited in
+	// order by mutators and GenerateBuildActions, so the data created by the current mutator can be read from all
+	// variants using VisitAllModuleVariants if the current module == FinalModule().  This can be used to perform
+	// singleton actions that are only done once for all variants of a module.
 	FinalModule() Module
+
+	// VisitAllModuleVariants calls visit for each variant of the current module.  Variants of a module are always
+	// visited in order by mutators and GenerateBuildActions, so the data created by the current mutator can be read
+	// from all variants if the current module == FinalModule().  Otherwise, care must be taken to not access any
+	// data modified by the current mutator.
 	VisitAllModuleVariants(visit func(Module))
 
+	// GetMissingDependencies returns the list of dependencies that were passed to AddDependencies or related methods,
+	// but do not exist.
 	GetMissingDependencies() []string
 }
 
diff --git a/android/mutator.go b/android/mutator.go
index 5212553..738b2ba 100644
--- a/android/mutator.go
+++ b/android/mutator.go
@@ -179,15 +179,24 @@
 	finalDeps = append(finalDeps, f)
 }
 
+type BaseMutatorContext interface {
+	BaseModuleContext
+
+	// MutatorName returns the name that this mutator was registered with.
+	MutatorName() string
+
+	// Rename all variants of a module.  The new name is not visible to calls to ModuleName,
+	// AddDependency or OtherModuleName until after this mutator pass is complete.
+	Rename(name string)
+}
+
 type TopDownMutator func(TopDownMutatorContext)
 
 type TopDownMutatorContext interface {
-	BaseModuleContext
+	BaseMutatorContext
 
-	MutatorName() string
-
-	Rename(name string)
-
+	// CreateModule creates a new module by calling the factory method for the specified moduleType, and applies
+	// the specified property structs to it as if the properties were set in a blueprint file.
 	CreateModule(ModuleFactory, ...interface{}) Module
 }
 
@@ -199,24 +208,97 @@
 type BottomUpMutator func(BottomUpMutatorContext)
 
 type BottomUpMutatorContext interface {
-	BaseModuleContext
+	BaseMutatorContext
 
-	MutatorName() string
-
-	Rename(name string)
-
+	// AddDependency adds a dependency to the given module.
+	// Does not affect the ordering of the current mutator pass, but will be ordered
+	// correctly for all future mutator passes.
 	AddDependency(module blueprint.Module, tag blueprint.DependencyTag, name ...string)
+
+	// AddReverseDependency adds a dependency from the destination to the given module.
+	// Does not affect the ordering of the current mutator pass, but will be ordered
+	// correctly for all future mutator passes.  All reverse dependencies for a destination module are
+	// collected until the end of the mutator pass, sorted by name, and then appended to the destination
+	// module's dependency list.
 	AddReverseDependency(module blueprint.Module, tag blueprint.DependencyTag, name string)
+
+	// CreateVariations splits  a module into multiple variants, one for each name in the variationNames
+	// parameter.  It returns a list of new modules in the same order as the variationNames
+	// list.
+	//
+	// If any of the dependencies of the module being operated on were already split
+	// by calling CreateVariations with the same name, the dependency will automatically
+	// be updated to point the matching variant.
+	//
+	// If a module is split, and then a module depending on the first module is not split
+	// when the Mutator is later called on it, the dependency of the depending module will
+	// automatically be updated to point to the first variant.
 	CreateVariations(...string) []Module
+
+	// CreateLocationVariations splits a module into multiple variants, one for each name in the variantNames
+	// parameter.  It returns a list of new modules in the same order as the variantNames
+	// list.
+	//
+	// Local variations do not affect automatic dependency resolution - dependencies added
+	// to the split module via deps or DynamicDependerModule must exactly match a variant
+	// that contains all the non-local variations.
 	CreateLocalVariations(...string) []Module
+
+	// SetDependencyVariation sets all dangling dependencies on the current module to point to the variation
+	// with given name. This function ignores the default variation set by SetDefaultDependencyVariation.
 	SetDependencyVariation(string)
+
+	// SetDefaultDependencyVariation sets the default variation when a dangling reference is detected
+	// during the subsequent calls on Create*Variations* functions. To reset, set it to nil.
 	SetDefaultDependencyVariation(*string)
+
+	// AddVariationDependencies adds deps as dependencies of the current module, but uses the variations
+	// argument to select which variant of the dependency to use.  A variant of the dependency must
+	// exist that matches the all of the non-local variations of the current module, plus the variations
+	// argument.
 	AddVariationDependencies([]blueprint.Variation, blueprint.DependencyTag, ...string)
+
+	// AddFarVariationDependencies adds deps as dependencies of the current module, but uses the
+	// variations argument to select which variant of the dependency to use.  A variant of the
+	// dependency must exist that matches the variations argument, but may also have other variations.
+	// For any unspecified variation the first variant will be used.
+	//
+	// Unlike AddVariationDependencies, the variations of the current module are ignored - the
+	// dependency only needs to match the supplied variations.
 	AddFarVariationDependencies([]blueprint.Variation, blueprint.DependencyTag, ...string)
+
+	// AddInterVariantDependency adds a dependency between two variants of the same module.  Variants are always
+	// ordered in the same orderas they were listed in CreateVariations, and AddInterVariantDependency does not change
+	// that ordering, but it associates a DependencyTag with the dependency and makes it visible to VisitDirectDeps,
+	// WalkDeps, etc.
 	AddInterVariantDependency(tag blueprint.DependencyTag, from, to blueprint.Module)
+
+	// ReplaceDependencies replaces all dependencies on the identical variant of the module with the
+	// specified name with the current variant of this module.  Replacements don't take effect until
+	// after the mutator pass is finished.
 	ReplaceDependencies(string)
+
+	// ReplaceDependencies replaces all dependencies on the identical variant of the module with the
+	// specified name with the current variant of this module as long as the supplied predicate returns
+	// true.
+	//
+	// Replacements don't take effect until after the mutator pass is finished.
 	ReplaceDependenciesIf(string, blueprint.ReplaceDependencyPredicate)
+
+	// AliasVariation takes a variationName that was passed to CreateVariations for this module,
+	// and creates an alias from the current variant (before the mutator has run) to the new
+	// variant.  The alias will be valid until the next time a mutator calls CreateVariations or
+	// CreateLocalVariations on this module without also calling AliasVariation.  The alias can
+	// be used to add dependencies on the newly created variant using the variant map from
+	// before CreateVariations was run.
 	AliasVariation(variationName string)
+
+	// CreateAliasVariation takes a toVariationName that was passed to CreateVariations for this
+	// module, and creates an alias from a new fromVariationName variant the toVariationName
+	// variant.  The alias will be valid until the next time a mutator calls CreateVariations or
+	// CreateLocalVariations on this module without also calling AliasVariation.  The alias can
+	// be used to add dependencies on the toVariationName variant using the fromVariationName
+	// variant.
 	CreateAliasVariation(fromVariationName, toVariationName string)
 }
 
diff --git a/cc/compiler.go b/cc/compiler.go
index c268dec..f745820 100644
--- a/cc/compiler.go
+++ b/cc/compiler.go
@@ -358,6 +358,10 @@
 		}
 	}
 
+	if ctx.Target().NativeBridge == android.NativeBridgeEnabled {
+		flags.Global.CommonFlags = append(flags.Global.CommonFlags, "-D__ANDROID_NATIVE_BRIDGE__")
+	}
+
 	instructionSet := String(compiler.Properties.Instruction_set)
 	if flags.RequiredInstructionSet != "" {
 		instructionSet = flags.RequiredInstructionSet
diff --git a/cc/config/arm64_device.go b/cc/config/arm64_device.go
index 62d8cc8..e6024aa 100644
--- a/cc/config/arm64_device.go
+++ b/cc/config/arm64_device.go
@@ -34,6 +34,9 @@
 		"armv8-2a": []string{
 			"-march=armv8.2-a",
 		},
+		"armv8-2a-dotprod": []string{
+			"-march=armv8.2-a+dotprod",
+		},
 	}
 
 	arm64Ldflags = []string{
@@ -100,6 +103,7 @@
 
 	pctx.StaticVariable("Arm64ClangArmv8ACflags", strings.Join(arm64ArchVariantCflags["armv8-a"], " "))
 	pctx.StaticVariable("Arm64ClangArmv82ACflags", strings.Join(arm64ArchVariantCflags["armv8-2a"], " "))
+	pctx.StaticVariable("Arm64ClangArmv82ADotprodCflags", strings.Join(arm64ArchVariantCflags["armv8-2a-dotprod"], " "))
 
 	pctx.StaticVariable("Arm64ClangCortexA53Cflags",
 		strings.Join(arm64ClangCpuVariantCflags["cortex-a53"], " "))
@@ -121,6 +125,7 @@
 	arm64ClangArchVariantCflagsVar = map[string]string{
 		"armv8-a":  "${config.Arm64ClangArmv8ACflags}",
 		"armv8-2a": "${config.Arm64ClangArmv82ACflags}",
+		"armv8-2a-dotprod": "${config.Arm64ClangArmv82ADotprodCflags}",
 	}
 
 	arm64ClangCpuVariantCflagsVar = map[string]string{
@@ -198,6 +203,7 @@
 	switch arch.ArchVariant {
 	case "armv8-a":
 	case "armv8-2a":
+	case "armv8-2a-dotprod":
 		// Nothing extra for armv8-a/armv8-2a
 	default:
 		panic(fmt.Sprintf("Unknown ARM architecture version: %q", arch.ArchVariant))
diff --git a/cc/lto.go b/cc/lto.go
index 9868cdf..e034337 100644
--- a/cc/lto.go
+++ b/cc/lto.go
@@ -52,6 +52,9 @@
 
 	// Use clang lld instead of gnu ld.
 	Use_clang_lld *bool
+
+	// Use -fwhole-program-vtables cflag.
+	Whole_program_vtables *bool
 }
 
 type lto struct {
@@ -97,6 +100,10 @@
 		flags.Local.CFlags = append(flags.Local.CFlags, ltoFlag)
 		flags.Local.LdFlags = append(flags.Local.LdFlags, ltoFlag)
 
+		if Bool(lto.Properties.Whole_program_vtables) {
+			flags.Local.CFlags = append(flags.Local.CFlags, "-fwhole-program-vtables")
+		}
+
 		if ctx.Config().IsEnvTrue("USE_THINLTO_CACHE") && Bool(lto.Properties.Lto.Thin) && lto.useClangLld(ctx) {
 			// Set appropriate ThinLTO cache policy
 			cacheDirFormat := "-Wl,--thinlto-cache-dir="
diff --git a/java/hiddenapi_singleton.go b/java/hiddenapi_singleton.go
index b6af3bf..61a9b97 100644
--- a/java/hiddenapi_singleton.go
+++ b/java/hiddenapi_singleton.go
@@ -92,31 +92,34 @@
 // stubFlagsRule creates the rule to build hiddenapi-stub-flags.txt out of dex jars from stub modules and boot image
 // modules.
 func stubFlagsRule(ctx android.SingletonContext) {
-	// Public API stubs
-	publicStubModules := []string{
-		"android_stubs_current",
+	var publicStubModules []string
+	var systemStubModules []string
+	var testStubModules []string
+	var corePlatformStubModules []string
+
+	if ctx.Config().AlwaysUsePrebuiltSdks() {
+		// Build configuration mandates using prebuilt stub modules
+		publicStubModules = append(publicStubModules, "sdk_public_current_android")
+		systemStubModules = append(systemStubModules, "sdk_system_current_android")
+		testStubModules = append(testStubModules, "sdk_test_current_android")
+	} else {
+		// Use stub modules built from source
+		publicStubModules = append(publicStubModules, "android_stubs_current")
+		systemStubModules = append(systemStubModules, "android_system_stubs_current")
+		testStubModules = append(testStubModules, "android_test_stubs_current")
 	}
+	// We do not have prebuilts of the core platform api yet
+	corePlatformStubModules = append(corePlatformStubModules, "legacy.core.platform.api.stubs")
 
 	// Add the android.test.base to the set of stubs only if the android.test.base module is on
 	// the boot jars list as the runtime will only enforce hiddenapi access against modules on
 	// that list.
-	if inList("android.test.base", ctx.Config().BootJars()) && !ctx.Config().AlwaysUsePrebuiltSdks() {
-		publicStubModules = append(publicStubModules, "android.test.base.stubs")
-	}
-
-	// System API stubs
-	systemStubModules := []string{
-		"android_system_stubs_current",
-	}
-
-	// Test API stubs
-	testStubModules := []string{
-		"android_test_stubs_current",
-	}
-
-	// Core Platform API stubs
-	corePlatformStubModules := []string{
-		"legacy.core.platform.api.stubs",
+	if inList("android.test.base", ctx.Config().BootJars()) {
+		if ctx.Config().AlwaysUsePrebuiltSdks() {
+			publicStubModules = append(publicStubModules, "sdk_public_current_android.test.base")
+		} else {
+			publicStubModules = append(publicStubModules, "android.test.base.stubs")
+		}
 	}
 
 	// Allow products to define their own stubs for custom product jars that apps can use.
diff --git a/java/hiddenapi_singleton_test.go b/java/hiddenapi_singleton_test.go
index bcca93a..dbdab7a 100644
--- a/java/hiddenapi_singleton_test.go
+++ b/java/hiddenapi_singleton_test.go
@@ -16,8 +16,11 @@
 
 import (
 	"android/soong/android"
+	"fmt"
 	"strings"
 	"testing"
+
+	"github.com/google/blueprint/proptools"
 )
 
 func testConfigWithBootJars(bp string, bootJars []string) android.Config {
@@ -32,19 +35,30 @@
 	return ctx
 }
 
-func testHiddenAPI(t *testing.T, bp string, bootJars []string) (*android.TestContext, android.Config) {
+func testHiddenAPIWithConfig(t *testing.T, config android.Config) *android.TestContext {
 	t.Helper()
 
-	config := testConfigWithBootJars(bp, bootJars)
 	ctx := testContextWithHiddenAPI()
 
 	run(t, ctx, config)
+	return ctx
+}
 
-	return ctx, config
+func testHiddenAPIBootJars(t *testing.T, bp string, bootJars []string) (*android.TestContext, android.Config) {
+	config := testConfigWithBootJars(bp, bootJars)
+
+	return testHiddenAPIWithConfig(t, config), config
+}
+
+func testHiddenAPIUnbundled(t *testing.T, unbundled bool) (*android.TestContext, android.Config) {
+	config := testConfig(nil, ``, nil)
+	config.TestProductVariables.Always_use_prebuilt_sdks = proptools.BoolPtr(unbundled)
+
+	return testHiddenAPIWithConfig(t, config), config
 }
 
 func TestHiddenAPISingleton(t *testing.T) {
-	ctx, _ := testHiddenAPI(t, `
+	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
 			srcs: ["a.java"],
@@ -61,7 +75,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuilt(t *testing.T) {
-	ctx, _ := testHiddenAPI(t, `
+	ctx, _ := testHiddenAPIBootJars(t, `
 		java_import {
 			name: "foo",
 			jars: ["a.jar"],
@@ -78,7 +92,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuiltUseSource(t *testing.T) {
-	ctx, _ := testHiddenAPI(t, `
+	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
 			srcs: ["a.java"],
@@ -107,7 +121,7 @@
 }
 
 func TestHiddenAPISingletonWithPrebuiltOverrideSource(t *testing.T) {
-	ctx, _ := testHiddenAPI(t, `
+	ctx, _ := testHiddenAPIBootJars(t, `
 		java_library {
 			name: "foo",
 			srcs: ["a.java"],
@@ -134,3 +148,72 @@
 		t.Errorf("Did not expect %s in hiddenapi command, but it was present: %s", fromSourceJarArg, hiddenapiRule.RuleParams.Command)
 	}
 }
+
+func TestHiddenAPISingletonSdks(t *testing.T) {
+	testCases := []struct {
+		name             string
+		unbundledBuild   bool
+		publicStub       string
+		systemStub       string
+		testStub         string
+		corePlatformStub string
+	}{
+		{
+			name:             "testBundled",
+			unbundledBuild:   false,
+			publicStub:       "android_stubs_current",
+			systemStub:       "android_system_stubs_current",
+			testStub:         "android_test_stubs_current",
+			corePlatformStub: "legacy.core.platform.api.stubs",
+		}, {
+			name:             "testUnbundled",
+			unbundledBuild:   true,
+			publicStub:       "sdk_public_current_android",
+			systemStub:       "sdk_system_current_android",
+			testStub:         "sdk_test_current_android",
+			corePlatformStub: "legacy.core.platform.api.stubs",
+		},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			ctx, _ := testHiddenAPIUnbundled(t, tc.unbundledBuild)
+
+			hiddenAPI := ctx.SingletonForTests("hiddenapi")
+			hiddenapiRule := hiddenAPI.Rule("hiddenapi")
+			wantPublicStubs := "--public-stub-classpath=" + generateSdkDexPath(tc.publicStub, tc.unbundledBuild)
+			if !strings.Contains(hiddenapiRule.RuleParams.Command, wantPublicStubs) {
+				t.Errorf("Expected %s in hiddenapi command, but it was not present: %s", wantPublicStubs, hiddenapiRule.RuleParams.Command)
+			}
+
+			wantSystemStubs := "--system-stub-classpath=" + generateSdkDexPath(tc.systemStub, tc.unbundledBuild)
+			if !strings.Contains(hiddenapiRule.RuleParams.Command, wantSystemStubs) {
+				t.Errorf("Expected %s in hiddenapi command, but it was not present: %s", wantSystemStubs, hiddenapiRule.RuleParams.Command)
+			}
+
+			wantTestStubs := "--test-stub-classpath=" + generateSdkDexPath(tc.testStub, tc.unbundledBuild)
+			if !strings.Contains(hiddenapiRule.RuleParams.Command, wantTestStubs) {
+				t.Errorf("Expected %s in hiddenapi command, but it was not present: %s", wantTestStubs, hiddenapiRule.RuleParams.Command)
+			}
+
+			wantCorePlatformStubs := "--core-platform-stub-classpath=" + generateDexPath(tc.corePlatformStub)
+			if !strings.Contains(hiddenapiRule.RuleParams.Command, wantCorePlatformStubs) {
+				t.Errorf("Expected %s in hiddenapi command, but it was not present: %s", wantCorePlatformStubs, hiddenapiRule.RuleParams.Command)
+			}
+		})
+	}
+}
+
+func generateDexedPath(subDir, dex, module string) string {
+	return fmt.Sprintf("%s/.intermediates/%s/android_common/%s/%s.jar", buildDir, subDir, dex, module)
+}
+
+func generateDexPath(module string) string {
+	return generateDexedPath(module, "dex", module)
+}
+
+func generateSdkDexPath(module string, unbundled bool) string {
+	if unbundled {
+		return generateDexedPath("prebuilts/sdk/"+module, "dex", module)
+	}
+	return generateDexPath(module)
+}
diff --git a/java/robolectric.go b/java/robolectric.go
index ec112bc..04fc117 100644
--- a/java/robolectric.go
+++ b/java/robolectric.go
@@ -31,7 +31,6 @@
 }
 
 var robolectricDefaultLibs = []string{
-	"robolectric_android-all-stub",
 	"Robolectric_all-target",
 	"mockito-robolectric-prebuilt",
 	"truth-prebuilt",
@@ -99,7 +98,8 @@
 
 	ctx.AddVariationDependencies(nil, roboCoverageLibsTag, r.robolectricProperties.Coverage_libs...)
 
-	ctx.AddVariationDependencies(nil, roboRuntimesTag, "robolectric-android-all-prebuilts")
+	ctx.AddFarVariationDependencies(ctx.Config().BuildOSCommonTarget.Variations(),
+		roboRuntimesTag, "robolectric-android-all-prebuilts")
 }
 
 func (r *robolectricTest) GenerateAndroidBuildActions(ctx android.ModuleContext) {
@@ -335,7 +335,7 @@
 func robolectricRuntimesFactory() android.Module {
 	module := &robolectricRuntimes{}
 	module.AddProperties(&module.props)
-	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+	android.InitAndroidArchModule(module, android.HostSupportedNoCross, android.MultilibCommon)
 	return module
 }
 
@@ -365,6 +365,10 @@
 }
 
 func (r *robolectricRuntimes) GenerateAndroidBuildActions(ctx android.ModuleContext) {
+	if ctx.Target().Os != ctx.Config().BuildOSCommonTarget.Os {
+		return
+	}
+
 	files := android.PathsForModuleSrc(ctx, r.props.Jars)
 
 	androidAllDir := android.PathForModuleInstall(ctx, "android-all")
diff --git a/java/testing.go b/java/testing.go
index 322dc9e..a472413 100644
--- a/java/testing.go
+++ b/java/testing.go
@@ -88,7 +88,7 @@
 		"prebuilts/sdk/30/system/api/bar-removed.txt":              nil,
 		"prebuilts/sdk/30/test/api/bar-removed.txt":                nil,
 		"prebuilts/sdk/tools/core-lambda-stubs.jar":                nil,
-		"prebuilts/sdk/Android.bp":                                 []byte(`prebuilt_apis { name: "sdk", api_dirs: ["14", "28", "30", "current"],}`),
+		"prebuilts/sdk/Android.bp":                                 []byte(`prebuilt_apis { name: "sdk", api_dirs: ["14", "28", "30", "current"], imports_sdk_version: "none", imports_compile_dex:true,}`),
 
 		"bin.py": nil,
 		python.StubTemplateHost: []byte(`PYTHON_BINARY = '%interpreter%'
diff --git a/rust/config/arm64_device.go b/rust/config/arm64_device.go
index 7d13c42..21b22a4 100644
--- a/rust/config/arm64_device.go
+++ b/rust/config/arm64_device.go
@@ -28,6 +28,7 @@
 	Arm64ArchVariantRustFlags = map[string][]string{
 		"armv8-a":  []string{},
 		"armv8-2a": []string{},
+		"armv8-2a-dotprod": []string{},
 	}
 )
 
diff --git a/rust/config/global.go b/rust/config/global.go
index 6a5251b..71c4240 100644
--- a/rust/config/global.go
+++ b/rust/config/global.go
@@ -24,7 +24,7 @@
 var pctx = android.NewPackageContext("android/soong/rust/config")
 
 var (
-	RustDefaultVersion = "1.45.2"
+	RustDefaultVersion = "1.46.0"
 	RustDefaultBase    = "prebuilts/rust/"
 	DefaultEdition     = "2018"
 	Stdlibs            = []string{