Merge "Tag removed APIs as such in hiddenapi_flags.csv."
diff --git a/android/androidmk.go b/android/androidmk.go
index ddd51ff..cfd7c91 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -72,6 +72,7 @@
 type AndroidMkEntries struct {
 	Class           string
 	SubName         string
+	OverrideName    string
 	DistFiles       TaggedDistFiles
 	OutputFile      OptionalPath
 	Disabled        bool
@@ -273,6 +274,9 @@
 	a.EntryMap = make(map[string][]string)
 	amod := mod.(Module).base()
 	name := amod.BaseModuleName()
+	if a.OverrideName != "" {
+		name = a.OverrideName
+	}
 
 	if a.Include == "" {
 		a.Include = "$(BUILD_PREBUILT)"
diff --git a/android/arch.go b/android/arch.go
index f505ec6..98ff07a 100644
--- a/android/arch.go
+++ b/android/arch.go
@@ -914,8 +914,8 @@
 		osTargets = targets
 	}
 
-	// only the primary arch in the ramdisk / recovery partition
-	if os == Android && (module.InstallInRecovery() || module.InstallInRamdisk()) {
+	// only the primary arch in the ramdisk / vendor_ramdisk / recovery partition
+	if os == Android && (module.InstallInRecovery() || module.InstallInRamdisk() || module.InstallInVendorRamdisk()) {
 		osTargets = []Target{osTargets[0]}
 	}
 
@@ -1717,7 +1717,7 @@
 
 func getAmlAbisConfig() []archConfig {
 	return []archConfig{
-		{"arm", "armv7-a", "", []string{"armeabi-v7a"}},
+		{"arm", "armv7-a-neon", "", []string{"armeabi-v7a"}},
 		{"arm64", "armv8-a", "", []string{"arm64-v8a"}},
 		{"x86", "", "", []string{"x86"}},
 		{"x86_64", "", "", []string{"x86_64"}},
diff --git a/android/config.go b/android/config.go
index cf6d596..004b743 100644
--- a/android/config.go
+++ b/android/config.go
@@ -1312,6 +1312,10 @@
 	return c.config.productVariables.BoardKernelModuleInterfaceVersions
 }
 
+func (c *deviceConfig) BoardMoveRecoveryResourcesToVendorBoot() bool {
+	return Bool(c.config.productVariables.BoardMoveRecoveryResourcesToVendorBoot)
+}
+
 // The ConfiguredJarList struct provides methods for handling a list of (apex, jar) pairs.
 // Such lists are used in the build system for things like bootclasspath jars or system server jars.
 // The apex part is either an apex name, or a special names "platform" or "system_ext". Jar is a
diff --git a/android/defs.go b/android/defs.go
index 83daa03..2b1bd85 100644
--- a/android/defs.go
+++ b/android/defs.go
@@ -69,8 +69,9 @@
 	// A symlink rule.
 	Symlink = pctx.AndroidStaticRule("Symlink",
 		blueprint.RuleParams{
-			Command:     "rm -f $out && ln -f -s $fromPath $out",
-			Description: "symlink $out",
+			Command:        "rm -f $out && ln -f -s $fromPath $out",
+			Description:    "symlink $out",
+			SymlinkOutputs: []string{"$out"},
 		},
 		"fromPath")
 
diff --git a/android/image.go b/android/image.go
index 061bfa5..1a1a423 100644
--- a/android/image.go
+++ b/android/image.go
@@ -26,6 +26,10 @@
 	// ramdisk partition).
 	RamdiskVariantNeeded(ctx BaseModuleContext) bool
 
+	// VendorRamdiskVariantNeeded should return true if the module needs a vendor ramdisk variant (installed on the
+	// vendor ramdisk partition).
+	VendorRamdiskVariantNeeded(ctx BaseModuleContext) bool
+
 	// RecoveryVariantNeeded should return true if the module needs a recovery variant (installed on the
 	// recovery partition).
 	RecoveryVariantNeeded(ctx BaseModuleContext) bool
@@ -53,6 +57,9 @@
 
 	// RamdiskVariation means a module to be installed to ramdisk image.
 	RamdiskVariation string = "ramdisk"
+
+	// VendorRamdiskVariation means a module to be installed to vendor ramdisk image.
+	VendorRamdiskVariation string = "vendor_ramdisk"
 )
 
 // imageMutator creates variants for modules that implement the ImageInterface that
@@ -73,6 +80,9 @@
 		if m.RamdiskVariantNeeded(ctx) {
 			variations = append(variations, RamdiskVariation)
 		}
+		if m.VendorRamdiskVariantNeeded(ctx) {
+			variations = append(variations, VendorRamdiskVariation)
+		}
 		if m.RecoveryVariantNeeded(ctx) {
 			variations = append(variations, RecoveryVariation)
 		}
diff --git a/android/makefile_goal.go b/android/makefile_goal.go
index eae3976..b5d9d69 100644
--- a/android/makefile_goal.go
+++ b/android/makefile_goal.go
@@ -93,7 +93,6 @@
 func MakefileGoalFactory() Module {
 	module := &makefileGoal{}
 	module.AddProperties(&module.properties)
-	// This module is device-only
-	InitAndroidArchModule(module, DeviceSupported, MultilibFirst)
+	InitAndroidModule(module)
 	return module
 }
diff --git a/android/module.go b/android/module.go
index 822e5bd..d677406 100644
--- a/android/module.go
+++ b/android/module.go
@@ -43,6 +43,8 @@
 	Description     string
 	Output          WritablePath
 	Outputs         WritablePaths
+	SymlinkOutput   WritablePath
+	SymlinkOutputs  WritablePaths
 	ImplicitOutput  WritablePath
 	ImplicitOutputs WritablePaths
 	Input           Path
@@ -346,6 +348,7 @@
 	InstallInTestcases() bool
 	InstallInSanitizerDir() bool
 	InstallInRamdisk() bool
+	InstallInVendorRamdisk() bool
 	InstallInRecovery() bool
 	InstallInRoot() bool
 	InstallBypassMake() bool
@@ -401,6 +404,7 @@
 	InstallInTestcases() bool
 	InstallInSanitizerDir() bool
 	InstallInRamdisk() bool
+	InstallInVendorRamdisk() bool
 	InstallInRecovery() bool
 	InstallInRoot() bool
 	InstallBypassMake() bool
@@ -621,6 +625,9 @@
 	// Whether this module is installed to ramdisk
 	Ramdisk *bool
 
+	// Whether this module is installed to vendor ramdisk
+	Vendor_ramdisk *bool
+
 	// Whether this module is built for non-native architecures (also known as native bridge binary)
 	Native_bridge_supported *bool `android:"arch_variant"`
 
@@ -1272,6 +1279,10 @@
 	return Bool(m.commonProperties.Ramdisk)
 }
 
+func (m *ModuleBase) InstallInVendorRamdisk() bool {
+	return Bool(m.commonProperties.Vendor_ramdisk)
+}
+
 func (m *ModuleBase) InstallInRecovery() bool {
 	return Bool(m.commonProperties.Recovery)
 }
@@ -1321,6 +1332,10 @@
 	return m.base().commonProperties.ImageVariation == RamdiskVariation
 }
 
+func (m *ModuleBase) InVendorRamdisk() bool {
+	return m.base().commonProperties.ImageVariation == VendorRamdiskVariation
+}
+
 func (m *ModuleBase) InRecovery() bool {
 	return m.base().commonProperties.ImageVariation == RecoveryVariation
 }
@@ -1763,6 +1778,27 @@
 	m.Build(pctx, BuildParams(params))
 }
 
+func validateBuildParams(params blueprint.BuildParams) error {
+	// Validate that the symlink outputs are declared outputs or implicit outputs
+	allOutputs := map[string]bool{}
+	for _, output := range params.Outputs {
+		allOutputs[output] = true
+	}
+	for _, output := range params.ImplicitOutputs {
+		allOutputs[output] = true
+	}
+	for _, symlinkOutput := range params.SymlinkOutputs {
+		if !allOutputs[symlinkOutput] {
+			return fmt.Errorf(
+				"Symlink output %s is not a declared output or implicit output",
+				symlinkOutput)
+		}
+	}
+	return nil
+}
+
+// Convert build parameters from their concrete Android types into their string representations,
+// and combine the singular and plural fields of the same type (e.g. Output and Outputs).
 func convertBuildParams(params BuildParams) blueprint.BuildParams {
 	bparams := blueprint.BuildParams{
 		Rule:            params.Rule,
@@ -1770,6 +1806,7 @@
 		Deps:            params.Deps,
 		Outputs:         params.Outputs.Strings(),
 		ImplicitOutputs: params.ImplicitOutputs.Strings(),
+		SymlinkOutputs:  params.SymlinkOutputs.Strings(),
 		Inputs:          params.Inputs.Strings(),
 		Implicits:       params.Implicits.Strings(),
 		OrderOnly:       params.OrderOnly.Strings(),
@@ -1784,6 +1821,9 @@
 	if params.Output != nil {
 		bparams.Outputs = append(bparams.Outputs, params.Output.String())
 	}
+	if params.SymlinkOutput != nil {
+		bparams.SymlinkOutputs = append(bparams.SymlinkOutputs, params.SymlinkOutput.String())
+	}
 	if params.ImplicitOutput != nil {
 		bparams.ImplicitOutputs = append(bparams.ImplicitOutputs, params.ImplicitOutput.String())
 	}
@@ -1799,6 +1839,7 @@
 
 	bparams.Outputs = proptools.NinjaEscapeList(bparams.Outputs)
 	bparams.ImplicitOutputs = proptools.NinjaEscapeList(bparams.ImplicitOutputs)
+	bparams.SymlinkOutputs = proptools.NinjaEscapeList(bparams.SymlinkOutputs)
 	bparams.Inputs = proptools.NinjaEscapeList(bparams.Inputs)
 	bparams.Implicits = proptools.NinjaEscapeList(bparams.Implicits)
 	bparams.OrderOnly = proptools.NinjaEscapeList(bparams.OrderOnly)
@@ -1855,7 +1896,15 @@
 		m.buildParams = append(m.buildParams, params)
 	}
 
-	m.bp.Build(pctx.PackageContext, convertBuildParams(params))
+	bparams := convertBuildParams(params)
+	err := validateBuildParams(bparams)
+	if err != nil {
+		m.ModuleErrorf(
+			"%s: build parameter validation failed: %s",
+			m.ModuleName(),
+			err.Error())
+	}
+	m.bp.Build(pctx.PackageContext, bparams)
 }
 
 func (m *moduleContext) Phony(name string, deps ...Path) {
@@ -2188,6 +2237,10 @@
 	return m.module.InstallInRamdisk()
 }
 
+func (m *moduleContext) InstallInVendorRamdisk() bool {
+	return m.module.InstallInVendorRamdisk()
+}
+
 func (m *moduleContext) InstallInRecovery() bool {
 	return m.module.InstallInRecovery()
 }
diff --git a/android/module_test.go b/android/module_test.go
index 6e648d7..3a039e2 100644
--- a/android/module_test.go
+++ b/android/module_test.go
@@ -187,3 +187,49 @@
 	_, errs = ctx.PrepareBuildActions(config)
 	FailIfNoMatchingErrors(t, `module "foo": depends on disabled module "bar"`, errs)
 }
+
+func TestValidateCorrectBuildParams(t *testing.T) {
+	config := TestConfig(buildDir, nil, "", nil)
+	pathContext := PathContextForTesting(config)
+	bparams := convertBuildParams(BuildParams{
+		// Test with Output
+		Output:        PathForOutput(pathContext, "undeclared_symlink"),
+		SymlinkOutput: PathForOutput(pathContext, "undeclared_symlink"),
+	})
+
+	err := validateBuildParams(bparams)
+	if err != nil {
+		t.Error(err)
+	}
+
+	bparams = convertBuildParams(BuildParams{
+		// Test with ImplicitOutput
+		ImplicitOutput: PathForOutput(pathContext, "undeclared_symlink"),
+		SymlinkOutput:  PathForOutput(pathContext, "undeclared_symlink"),
+	})
+
+	err = validateBuildParams(bparams)
+	if err != nil {
+		t.Error(err)
+	}
+}
+
+func TestValidateIncorrectBuildParams(t *testing.T) {
+	config := TestConfig(buildDir, nil, "", nil)
+	pathContext := PathContextForTesting(config)
+	params := BuildParams{
+		Output:          PathForOutput(pathContext, "regular_output"),
+		Outputs:         PathsForOutput(pathContext, []string{"out1", "out2"}),
+		ImplicitOutput:  PathForOutput(pathContext, "implicit_output"),
+		ImplicitOutputs: PathsForOutput(pathContext, []string{"i_out1", "_out2"}),
+		SymlinkOutput:   PathForOutput(pathContext, "undeclared_symlink"),
+	}
+
+	bparams := convertBuildParams(params)
+	err := validateBuildParams(bparams)
+	if err != nil {
+		FailIfNoMatchingErrors(t, "undeclared_symlink is not a declared output or implicit output", []error{err})
+	} else {
+		t.Errorf("Expected build params to fail validation: %+v", bparams)
+	}
+}
diff --git a/android/paths.go b/android/paths.go
index 3825d45..4eb9d20 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -58,6 +58,7 @@
 	InstallInTestcases() bool
 	InstallInSanitizerDir() bool
 	InstallInRamdisk() bool
+	InstallInVendorRamdisk() bool
 	InstallInRecovery() bool
 	InstallInRoot() bool
 	InstallBypassMake() bool
@@ -1376,6 +1377,15 @@
 			if !ctx.InstallInRoot() {
 				partition += "/system"
 			}
+		} else if ctx.InstallInVendorRamdisk() {
+			if ctx.DeviceConfig().BoardMoveRecoveryResourcesToVendorBoot() {
+				partition = "recovery/root/first_stage_ramdisk"
+			} else {
+				partition = "vendor-ramdisk"
+			}
+			if !ctx.InstallInRoot() {
+				partition += "/system"
+			}
 		} else if ctx.InstallInRecovery() {
 			if ctx.InstallInRoot() {
 				partition = "recovery/root"
diff --git a/android/paths_test.go b/android/paths_test.go
index 108bd6c..9ecf4a1 100644
--- a/android/paths_test.go
+++ b/android/paths_test.go
@@ -200,14 +200,15 @@
 type moduleInstallPathContextImpl struct {
 	baseModuleContext
 
-	inData         bool
-	inTestcases    bool
-	inSanitizerDir bool
-	inRamdisk      bool
-	inRecovery     bool
-	inRoot         bool
-	forceOS        *OsType
-	forceArch      *ArchType
+	inData          bool
+	inTestcases     bool
+	inSanitizerDir  bool
+	inRamdisk       bool
+	inVendorRamdisk bool
+	inRecovery      bool
+	inRoot          bool
+	forceOS         *OsType
+	forceArch       *ArchType
 }
 
 func (m moduleInstallPathContextImpl) Config() Config {
@@ -232,6 +233,10 @@
 	return m.inRamdisk
 }
 
+func (m moduleInstallPathContextImpl) InstallInVendorRamdisk() bool {
+	return m.inVendorRamdisk
+}
+
 func (m moduleInstallPathContextImpl) InstallInRecovery() bool {
 	return m.inRecovery
 }
diff --git a/android/rule_builder.go b/android/rule_builder.go
index afb5f4e..8dc9d6a 100644
--- a/android/rule_builder.go
+++ b/android/rule_builder.go
@@ -246,6 +246,41 @@
 	return outputList
 }
 
+func (r *RuleBuilder) symlinkOutputSet() map[string]WritablePath {
+	symlinkOutputs := make(map[string]WritablePath)
+	for _, c := range r.commands {
+		for _, symlinkOutput := range c.symlinkOutputs {
+			symlinkOutputs[symlinkOutput.String()] = symlinkOutput
+		}
+	}
+	return symlinkOutputs
+}
+
+// SymlinkOutputs returns the list of paths that the executor (Ninja) would
+// verify, after build edge completion, that:
+//
+// 1) Created output symlinks match the list of paths in this list exactly (no more, no fewer)
+// 2) Created output files are *not* declared in this list.
+//
+// These symlink outputs are expected to be a subset of outputs or implicit
+// outputs, or they would fail validation at build param construction time
+// later, to support other non-rule-builder approaches for constructing
+// statements.
+func (r *RuleBuilder) SymlinkOutputs() WritablePaths {
+	symlinkOutputs := r.symlinkOutputSet()
+
+	var symlinkOutputList WritablePaths
+	for _, symlinkOutput := range symlinkOutputs {
+		symlinkOutputList = append(symlinkOutputList, symlinkOutput)
+	}
+
+	sort.Slice(symlinkOutputList, func(i, j int) bool {
+		return symlinkOutputList[i].String() < symlinkOutputList[j].String()
+	})
+
+	return symlinkOutputList
+}
+
 func (r *RuleBuilder) depFileSet() map[string]WritablePath {
 	depFiles := make(map[string]WritablePath)
 	for _, c := range r.commands {
@@ -467,6 +502,7 @@
 		Implicits:       r.Inputs(),
 		Output:          output,
 		ImplicitOutputs: implicitOutputs,
+		SymlinkOutputs:  r.SymlinkOutputs(),
 		Depfile:         depFile,
 		Deps:            depFormat,
 		Description:     desc,
@@ -478,14 +514,15 @@
 // RuleBuilderCommand, so they can be used chained or unchained.  All methods that add text implicitly add a single
 // space as a separator from the previous method.
 type RuleBuilderCommand struct {
-	buf           strings.Builder
-	inputs        Paths
-	implicits     Paths
-	orderOnlys    Paths
-	outputs       WritablePaths
-	depFiles      WritablePaths
-	tools         Paths
-	rspFileInputs Paths
+	buf            strings.Builder
+	inputs         Paths
+	implicits      Paths
+	orderOnlys     Paths
+	outputs        WritablePaths
+	symlinkOutputs WritablePaths
+	depFiles       WritablePaths
+	tools          Paths
+	rspFileInputs  Paths
 
 	// spans [start,end) of the command that should not be ninja escaped
 	unescapedSpans [][2]int
@@ -715,6 +752,40 @@
 	return c
 }
 
+// ImplicitSymlinkOutput declares the specified path as an implicit output that
+// will be a symlink instead of a regular file. Does not modify the command
+// line.
+func (c *RuleBuilderCommand) ImplicitSymlinkOutput(path WritablePath) *RuleBuilderCommand {
+	c.symlinkOutputs = append(c.symlinkOutputs, path)
+	return c.ImplicitOutput(path)
+}
+
+// ImplicitSymlinkOutputs declares the specified paths as implicit outputs that
+// will be a symlinks instead of regular files. Does not modify the command
+// line.
+func (c *RuleBuilderCommand) ImplicitSymlinkOutputs(paths WritablePaths) *RuleBuilderCommand {
+	for _, path := range paths {
+		c.ImplicitSymlinkOutput(path)
+	}
+	return c
+}
+
+// SymlinkOutput declares the specified path as an output that will be a symlink
+// instead of a regular file. Modifies the command line.
+func (c *RuleBuilderCommand) SymlinkOutput(path WritablePath) *RuleBuilderCommand {
+	c.symlinkOutputs = append(c.symlinkOutputs, path)
+	return c.Output(path)
+}
+
+// SymlinkOutputsl declares the specified paths as outputs that will be symlinks
+// instead of regular files. Modifies the command line.
+func (c *RuleBuilderCommand) SymlinkOutputs(paths WritablePaths) *RuleBuilderCommand {
+	for _, path := range paths {
+		c.SymlinkOutput(path)
+	}
+	return c
+}
+
 // ImplicitDepFile adds the specified depfile path to the paths returned by RuleBuilder.DepFiles without modifying
 // the command line, and causes RuleBuilder.Build file to set the depfile flag for ninja.  If multiple depfiles
 // are added to commands in a single RuleBuilder then RuleBuilder.Build will add an extra command to merge the
diff --git a/android/rule_builder_test.go b/android/rule_builder_test.go
index c41b067..0d1070d 100644
--- a/android/rule_builder_test.go
+++ b/android/rule_builder_test.go
@@ -35,6 +35,7 @@
 		"a":       nil,
 		"b":       nil,
 		"ls":      nil,
+		"ln":      nil,
 		"turbine": nil,
 		"java":    nil,
 		"javac":   nil,
@@ -67,6 +68,32 @@
 	// outputs: ["out/linked"]
 }
 
+func ExampleRuleBuilder_SymlinkOutputs() {
+	rule := NewRuleBuilder()
+
+	ctx := pathContext()
+
+	rule.Command().
+		Tool(PathForSource(ctx, "ln")).
+		FlagWithInput("-s ", PathForTesting("a.o")).
+		SymlinkOutput(PathForOutput(ctx, "a"))
+	rule.Command().Text("cp out/a out/b").
+		ImplicitSymlinkOutput(PathForOutput(ctx, "b"))
+
+	fmt.Printf("commands: %q\n", strings.Join(rule.Commands(), " && "))
+	fmt.Printf("tools: %q\n", rule.Tools())
+	fmt.Printf("inputs: %q\n", rule.Inputs())
+	fmt.Printf("outputs: %q\n", rule.Outputs())
+	fmt.Printf("symlink_outputs: %q\n", rule.SymlinkOutputs())
+
+	// Output:
+	// commands: "ln -s a.o out/a && cp out/a out/b"
+	// tools: ["ln"]
+	// inputs: ["a.o"]
+	// outputs: ["out/a" "out/b"]
+	// symlink_outputs: ["out/a" "out/b"]
+}
+
 func ExampleRuleBuilder_Temporary() {
 	rule := NewRuleBuilder()
 
@@ -293,6 +320,8 @@
 			Input(PathForSource(ctx, "Input")).
 			Output(PathForOutput(ctx, "Output")).
 			OrderOnly(PathForSource(ctx, "OrderOnly")).
+			SymlinkOutput(PathForOutput(ctx, "SymlinkOutput")).
+			ImplicitSymlinkOutput(PathForOutput(ctx, "ImplicitSymlinkOutput")).
 			Text("Text").
 			Tool(PathForSource(ctx, "Tool"))
 
@@ -318,17 +347,18 @@
 	}
 
 	wantInputs := PathsForSource(ctx, []string{"Implicit", "Input", "input", "input2", "input3"})
-	wantOutputs := PathsForOutput(ctx, []string{"ImplicitOutput", "Output", "output", "output2", "output3"})
+	wantOutputs := PathsForOutput(ctx, []string{"ImplicitOutput", "ImplicitSymlinkOutput", "Output", "SymlinkOutput", "output", "output2", "output3"})
 	wantDepFiles := PathsForOutput(ctx, []string{"DepFile", "depfile", "ImplicitDepFile", "depfile2"})
 	wantTools := PathsForSource(ctx, []string{"Tool", "tool2"})
 	wantOrderOnlys := PathsForSource(ctx, []string{"OrderOnly", "OrderOnlys"})
+	wantSymlinkOutputs := PathsForOutput(ctx, []string{"ImplicitSymlinkOutput", "SymlinkOutput"})
 
 	t.Run("normal", func(t *testing.T) {
 		rule := NewRuleBuilder()
 		addCommands(rule)
 
 		wantCommands := []string{
-			"out/DepFile Flag FlagWithArg=arg FlagWithDepFile=out/depfile FlagWithInput=input FlagWithOutput=out/output Input out/Output Text Tool after command2 old cmd",
+			"out/DepFile Flag FlagWithArg=arg FlagWithDepFile=out/depfile FlagWithInput=input FlagWithOutput=out/output Input out/Output out/SymlinkOutput Text Tool after command2 old cmd",
 			"command2 out/depfile2 input2 out/output2 tool2",
 			"command3 input3 out/output2 out/output3",
 		}
@@ -345,6 +375,9 @@
 		if g, w := rule.Outputs(), wantOutputs; !reflect.DeepEqual(w, g) {
 			t.Errorf("\nwant rule.Outputs() = %#v\n                  got %#v", w, g)
 		}
+		if g, w := rule.SymlinkOutputs(), wantSymlinkOutputs; !reflect.DeepEqual(w, g) {
+			t.Errorf("\nwant rule.SymlinkOutputs() = %#v\n                  got %#v", w, g)
+		}
 		if g, w := rule.DepFiles(), wantDepFiles; !reflect.DeepEqual(w, g) {
 			t.Errorf("\nwant rule.DepFiles() = %#v\n                  got %#v", w, g)
 		}
@@ -365,7 +398,7 @@
 		addCommands(rule)
 
 		wantCommands := []string{
-			"__SBOX_OUT_DIR__/DepFile Flag FlagWithArg=arg FlagWithDepFile=__SBOX_OUT_DIR__/depfile FlagWithInput=input FlagWithOutput=__SBOX_OUT_DIR__/output Input __SBOX_OUT_DIR__/Output Text Tool after command2 old cmd",
+			"__SBOX_OUT_DIR__/DepFile Flag FlagWithArg=arg FlagWithDepFile=__SBOX_OUT_DIR__/depfile FlagWithInput=input FlagWithOutput=__SBOX_OUT_DIR__/output Input __SBOX_OUT_DIR__/Output __SBOX_OUT_DIR__/SymlinkOutput Text Tool after command2 old cmd",
 			"command2 __SBOX_OUT_DIR__/depfile2 input2 __SBOX_OUT_DIR__/output2 tool2",
 			"command3 input3 __SBOX_OUT_DIR__/output2 __SBOX_OUT_DIR__/output3",
 		}
diff --git a/android/singleton.go b/android/singleton.go
index 9832378..bb6614d 100644
--- a/android/singleton.go
+++ b/android/singleton.go
@@ -168,6 +168,10 @@
 		s.buildParams = append(s.buildParams, params)
 	}
 	bparams := convertBuildParams(params)
+	err := validateBuildParams(bparams)
+	if err != nil {
+		s.Errorf("%s: build parameter validation failed: %s", s.Name(), err.Error())
+	}
 	s.SingletonContext.Build(pctx.PackageContext, bparams)
 
 }
diff --git a/android/variable.go b/android/variable.go
index a9495cc..23fc6c2 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -90,6 +90,11 @@
 			Required        []string
 			Host_required   []string
 			Target_required []string
+			Strip           struct {
+				All                          *bool
+				Keep_symbols                 *bool
+				Keep_symbols_and_debug_frame *bool
+			}
 		}
 
 		// eng is true for -eng builds, and can be used to turn on additionaly heavyweight debugging
@@ -347,6 +352,8 @@
 
 	BoardKernelBinaries                []string `json:",omitempty"`
 	BoardKernelModuleInterfaceVersions []string `json:",omitempty"`
+
+	BoardMoveRecoveryResourcesToVendorBoot *bool `json:",omitempty"`
 }
 
 func boolPtr(v bool) *bool {
diff --git a/apex/allowed_deps.txt b/apex/allowed_deps.txt
index cd4b056..07e78af 100644
--- a/apex/allowed_deps.txt
+++ b/apex/allowed_deps.txt
@@ -154,7 +154,9 @@
 crtend_so(minSdkVersion:16)
 crtend_so(minSdkVersion:apex_inherit)
 datastallprotosnano(minSdkVersion:29)
+derive_sdk(minSdkVersion:30)
 derive_sdk(minSdkVersion:current)
+derive_sdk_prefer32(minSdkVersion:30)
 derive_sdk_prefer32(minSdkVersion:current)
 dnsresolver_aidl_interface-unstable-ndk_platform(minSdkVersion:29)
 DocumentsUI-res-lib(minSdkVersion:29)
@@ -165,6 +167,7 @@
 flatbuffer_headers(minSdkVersion:(no version))
 fmtlib(minSdkVersion:29)
 framework-permission(minSdkVersion:current)
+framework-sdkextensions(minSdkVersion:30)
 framework-sdkextensions(minSdkVersion:current)
 framework-statsd(minSdkVersion:current)
 framework-tethering(minSdkVersion:current)
diff --git a/apex/apex.go b/apex/apex.go
index a9a58a6..b02711e 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -2075,7 +2075,7 @@
 		if to.AvailableFor(apexName) || baselineApexAvailable(apexName, toName) {
 			return true
 		}
-		ctx.ModuleErrorf("%q requires %q that is not available for the APEX. Dependency path:%s", fromName, toName, ctx.GetPathString(true))
+		ctx.ModuleErrorf("%q requires %q that doesn't list the APEX under 'apex_available'. Dependency path:%s", fromName, toName, ctx.GetPathString(true))
 		// Visit this module's dependencies to check and report any issues with their availability.
 		return true
 	})
@@ -2383,11 +2383,12 @@
 							// system libraries.
 							if !am.DirectlyInAnyApex() {
 								// we need a module name for Make
-								name := cc.BaseModuleName() + cc.Properties.SubName
-								if proptools.Bool(a.properties.Use_vendor) {
+								name := cc.ImplementationModuleName(ctx)
+
+								if !proptools.Bool(a.properties.Use_vendor) {
 									// we don't use subName(.vendor) for a "use_vendor: true" apex
 									// which is supposed to be installed in /system
-									name = cc.BaseModuleName()
+									name += cc.Properties.SubName
 								}
 								if !android.InList(name, a.requiredDeps) {
 									a.requiredDeps = append(a.requiredDeps, name)
diff --git a/apex/apex_test.go b/apex/apex_test.go
index c52fd04..fcd734c 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -1270,10 +1270,11 @@
 				system_shared_libs: [],
 				stl: "none",
 				stubs: { versions: ["29","30"] },
+				llndk_stubs: "libbar.llndk",
 			}
 
 			llndk_library {
-				name: "libbar",
+				name: "libbar.llndk",
 				symbol_file: "",
 			}
 			`, func(fs map[string][]byte, config android.Config) {
@@ -4558,7 +4559,7 @@
 
 func TestApexPropertiesShouldBeDefaultable(t *testing.T) {
 	// libfoo's apex_available comes from cc_defaults
-	testApexError(t, `requires "libfoo" that is not available for the APEX`, `
+	testApexError(t, `requires "libfoo" that doesn't list the APEX under 'apex_available'.`, `
 	apex {
 		name: "myapex",
 		key: "myapex.key",
@@ -4592,7 +4593,7 @@
 
 func TestApexAvailable_DirectDep(t *testing.T) {
 	// libfoo is not available to myapex, but only to otherapex
-	testApexError(t, "requires \"libfoo\" that is not available for the APEX", `
+	testApexError(t, "requires \"libfoo\" that doesn't list the APEX under 'apex_available'.", `
 	apex {
 		name: "myapex",
 		key: "myapex.key",
@@ -4627,7 +4628,7 @@
 
 func TestApexAvailable_IndirectDep(t *testing.T) {
 	// libbbaz is an indirect dep
-	testApexError(t, `requires "libbaz" that is not available for the APEX. Dependency path:
+	testApexError(t, `requires "libbaz" that doesn't list the APEX under 'apex_available'. Dependency path:
 .*via tag apex\.dependencyTag.*name:sharedLib.*
 .*-> libfoo.*link:shared.*
 .*via tag cc\.libraryDependencyTag.*Kind:sharedLibraryDependency.*
diff --git a/apex/builder.go b/apex/builder.go
index 7c125ef..ad673d6 100644
--- a/apex/builder.go
+++ b/apex/builder.go
@@ -21,6 +21,7 @@
 	"path/filepath"
 	"runtime"
 	"sort"
+	"strconv"
 	"strings"
 
 	"android/soong/android"
@@ -552,14 +553,16 @@
 			optFlags = append(optFlags, "--android_manifest "+androidManifestFile.String())
 		}
 
-		targetSdkVersion := ctx.Config().DefaultAppTargetSdk(ctx).String()
-		// TODO(b/157078772): propagate min_sdk_version to apexer.
-		minSdkVersion := ctx.Config().DefaultAppTargetSdk(ctx).String()
-
 		moduleMinSdkVersion := a.minSdkVersion(ctx)
-		if moduleMinSdkVersion.EqualTo(android.SdkVersion_Android10) {
-			minSdkVersion = moduleMinSdkVersion.String()
+		minSdkVersion := moduleMinSdkVersion.String()
+
+		// bundletool doesn't understand what "current" is. We need to transform it to codename
+		if moduleMinSdkVersion.IsCurrent() {
+			minSdkVersion = ctx.Config().DefaultAppTargetSdk(ctx).String()
 		}
+		// apex module doesn't have a concept of target_sdk_version, hence for the time being
+		// targetSdkVersion == default targetSdkVersion of the branch.
+		targetSdkVersion := strconv.Itoa(ctx.Config().DefaultAppTargetSdk(ctx).FinalOrFutureInt())
 
 		if java.UseApiFingerprint(ctx) {
 			targetSdkVersion = ctx.Config().PlatformSdkCodename() + fmt.Sprintf(".$$(cat %s)", java.ApiFingerprintPath(ctx).String())
diff --git a/apex/vndk.go b/apex/vndk.go
index 93265c4..f4b12b5 100644
--- a/apex/vndk.go
+++ b/apex/vndk.go
@@ -152,7 +152,7 @@
 	}
 
 	// TODO(b/124106384): Clean up compat symlinks for ART binaries.
-	if strings.HasPrefix(name, "com.android.art.") {
+	if name == "com.android.art" || strings.HasPrefix(name, "com.android.art.") {
 		addSymlink("/apex/com.android.art/bin/dalvikvm", "$(TARGET_OUT)/bin", "dalvikvm")
 		dex2oat := "dex2oat32"
 		if ctx.Config().Android64() {
diff --git a/cc/androidmk.go b/cc/androidmk.go
index e58a172..91eb886 100644
--- a/cc/androidmk.go
+++ b/cc/androidmk.go
@@ -24,15 +24,17 @@
 )
 
 var (
-	nativeBridgeSuffix = ".native_bridge"
-	productSuffix      = ".product"
-	vendorSuffix       = ".vendor"
-	ramdiskSuffix      = ".ramdisk"
-	recoverySuffix     = ".recovery"
-	sdkSuffix          = ".sdk"
+	nativeBridgeSuffix  = ".native_bridge"
+	productSuffix       = ".product"
+	vendorSuffix        = ".vendor"
+	ramdiskSuffix       = ".ramdisk"
+	vendorRamdiskSuffix = ".vendor_ramdisk"
+	recoverySuffix      = ".recovery"
+	sdkSuffix           = ".sdk"
 )
 
 type AndroidMkContext interface {
+	BaseModuleName() string
 	Target() android.Target
 	subAndroidMk(*android.AndroidMkEntries, interface{})
 	Arch() android.Arch
@@ -42,6 +44,7 @@
 	VndkVersion() string
 	static() bool
 	InRamdisk() bool
+	InVendorRamdisk() bool
 	InRecovery() bool
 	AnyVariantDirectlyInAnyApex() bool
 }
@@ -71,10 +74,11 @@
 
 	entries := android.AndroidMkEntries{
 		OutputFile: c.outputFile,
-		// TODO(jiyong): add the APEXes providing shared libs to the required modules
-		// Currently, adding c.Properties.ApexesProvidingSharedLibs is causing multiple
-		// ART APEXes (com.android.art.debug|release) to be installed. And this
-		// is breaking some older devices (like marlin) where system.img is small.
+		// TODO(jiyong): add the APEXes providing shared libs to the required
+		// modules Currently, adding c.Properties.ApexesProvidingSharedLibs is
+		// causing multiple ART APEXes (com.android.art and com.android.art.debug)
+		// to be installed. And this is breaking some older devices (like marlin)
+		// where system.img is small.
 		Required: c.Properties.AndroidMkRuntimeLibs,
 		Include:  "$(BUILD_SYSTEM)/soong_cc_prebuilt.mk",
 
@@ -278,7 +282,7 @@
 		})
 	}
 	if len(library.Properties.Stubs.Versions) > 0 && !ctx.Host() && ctx.AnyVariantDirectlyInAnyApex() &&
-		!ctx.InRamdisk() && !ctx.InRecovery() && !ctx.UseVndk() && !ctx.static() {
+		!ctx.InRamdisk() && !ctx.InVendorRamdisk() && !ctx.InRecovery() && !ctx.UseVndk() && !ctx.static() {
 		if library.buildStubs() && library.isLatestStubVersion() {
 			// reference the latest version via its name without suffix when it is provided by apex
 			entries.SubName = ""
@@ -462,6 +466,7 @@
 
 func (c *llndkStubDecorator) AndroidMkEntries(ctx AndroidMkContext, entries *android.AndroidMkEntries) {
 	entries.Class = "SHARED_LIBRARIES"
+	entries.OverrideName = c.implementationModuleName(ctx.BaseModuleName())
 
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
 		c.libraryDecorator.androidMkWriteExportedFlags(entries)
@@ -482,12 +487,6 @@
 	entries.ExtraEntries = append(entries.ExtraEntries, func(entries *android.AndroidMkEntries) {
 		c.libraryDecorator.androidMkWriteExportedFlags(entries)
 
-		path, file := filepath.Split(c.path.ToMakePath().String())
-		stem, suffix, ext := android.SplitFileExt(file)
-		entries.SetString("LOCAL_BUILT_MODULE_STEM", "$(LOCAL_MODULE)"+ext)
-		entries.SetString("LOCAL_MODULE_SUFFIX", suffix)
-		entries.SetString("LOCAL_MODULE_PATH", path)
-		entries.SetString("LOCAL_MODULE_STEM", stem)
 		if c.tocFile.Valid() {
 			entries.SetString("LOCAL_SOONG_TOC", c.tocFile.String())
 		}
diff --git a/cc/binary.go b/cc/binary.go
index 7f7b619..70cf5ff 100644
--- a/cc/binary.go
+++ b/cc/binary.go
@@ -251,7 +251,7 @@
 				} else {
 					switch ctx.Os() {
 					case android.Android:
-						if ctx.bootstrap() && !ctx.inRecovery() && !ctx.inRamdisk() {
+						if ctx.bootstrap() && !ctx.inRecovery() && !ctx.inRamdisk() && !ctx.inVendorRamdisk() {
 							flags.DynamicLinker = "/system/bin/bootstrap/linker"
 						} else {
 							flags.DynamicLinker = "/system/bin/linker"
@@ -446,7 +446,8 @@
 	// runtime APEX.
 	translatedArch := ctx.Target().NativeBridge == android.NativeBridgeEnabled
 	if InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !ctx.Host() && ctx.directlyInAnyApex() &&
-		!translatedArch && ctx.apexVariationName() == "" && !ctx.inRamdisk() && !ctx.inRecovery() {
+		!translatedArch && ctx.apexVariationName() == "" && !ctx.inRamdisk() && !ctx.inRecovery() &&
+		!ctx.inVendorRamdisk() {
 
 		if ctx.Device() && isBionic(ctx.baseModuleName()) {
 			binary.installSymlinkToRuntimeApex(ctx, file)
diff --git a/cc/builder.go b/cc/builder.go
index 8c8aa17..81c09b1 100644
--- a/cc/builder.go
+++ b/cc/builder.go
@@ -44,14 +44,14 @@
 		blueprint.RuleParams{
 			Depfile:     "${out}.d",
 			Deps:        blueprint.DepsGCC,
-			Command:     "${config.CcWrapper}$ccCmd -c $cFlags -MD -MF ${out}.d -o $out $in",
+			Command:     "$relPwd ${config.CcWrapper}$ccCmd -c $cFlags -MD -MF ${out}.d -o $out $in",
 			CommandDeps: []string{"$ccCmd"},
 		},
 		"ccCmd", "cFlags")
 
 	ccNoDeps = pctx.AndroidStaticRule("ccNoDeps",
 		blueprint.RuleParams{
-			Command:     "$ccCmd -c $cFlags -o $out $in",
+			Command:     "$relPwd $ccCmd -c $cFlags -o $out $in",
 			CommandDeps: []string{"$ccCmd"},
 		},
 		"ccCmd", "cFlags")
@@ -220,7 +220,7 @@
 			Labels:       map[string]string{"type": "abi-dump", "tool": "header-abi-dumper"},
 			ExecStrategy: "${config.REAbiDumperExecStrategy}",
 			Platform: map[string]string{
-				remoteexec.PoolKey: "${config.RECXXPool}",
+				remoteexec.PoolKey:      "${config.RECXXPool}",
 			},
 		}, []string{"cFlags", "exportDirs"}, nil)
 
diff --git a/cc/cc.go b/cc/cc.go
index dbe6346..c1a4327 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -84,6 +84,7 @@
 		ctx.TopDown("lto_deps", ltoDepsMutator)
 		ctx.BottomUp("lto", ltoMutator).Parallel()
 
+		ctx.BottomUp("check_linktype", checkLinkTypeMutator).Parallel()
 		ctx.TopDown("double_loadable", checkDoubleLoadableLibraries).Parallel()
 	})
 
@@ -257,14 +258,18 @@
 	// Make this module available when building for ramdisk
 	Ramdisk_available *bool
 
+	// Make this module available when building for vendor ramdisk
+	Vendor_ramdisk_available *bool
+
 	// Make this module available when building for recovery
 	Recovery_available *bool
 
 	// Set by imageMutator
-	CoreVariantNeeded     bool     `blueprint:"mutated"`
-	RamdiskVariantNeeded  bool     `blueprint:"mutated"`
-	RecoveryVariantNeeded bool     `blueprint:"mutated"`
-	ExtraVariants         []string `blueprint:"mutated"`
+	CoreVariantNeeded          bool     `blueprint:"mutated"`
+	RamdiskVariantNeeded       bool     `blueprint:"mutated"`
+	VendorRamdiskVariantNeeded bool     `blueprint:"mutated"`
+	RecoveryVariantNeeded      bool     `blueprint:"mutated"`
+	ExtraVariants              []string `blueprint:"mutated"`
 
 	// Allows this module to use non-APEX version of libraries. Useful
 	// for building binaries that are started before APEXes are activated.
@@ -352,6 +357,7 @@
 	inProduct() bool
 	inVendor() bool
 	inRamdisk() bool
+	inVendorRamdisk() bool
 	inRecovery() bool
 	shouldCreateSourceAbiDump() bool
 	selectedStl() string
@@ -946,7 +952,7 @@
 }
 
 func (c *Module) canUseSdk() bool {
-	return c.Os() == android.Android && !c.UseVndk() && !c.InRamdisk() && !c.InRecovery()
+	return c.Os() == android.Android && !c.UseVndk() && !c.InRamdisk() && !c.InRecovery() && !c.InVendorRamdisk()
 }
 
 func (c *Module) UseSdk() bool {
@@ -1040,6 +1046,16 @@
 	return false
 }
 
+// If this is a stubs library, ImplementationModuleName returns the name of the module that contains
+// the implementation.  If it is an implementation library it returns its own name.
+func (c *Module) ImplementationModuleName(ctx android.BaseModuleContext) string {
+	name := ctx.OtherModuleName(c)
+	if versioned, ok := c.linker.(versionedInterface); ok {
+		name = versioned.implementationModuleName(name)
+	}
+	return name
+}
+
 func (c *Module) bootstrap() bool {
 	return Bool(c.Properties.Bootstrap)
 }
@@ -1396,6 +1412,8 @@
 		c.Properties.SubName += vendorSuffix
 	} else if c.InRamdisk() && !c.OnlyInRamdisk() {
 		c.Properties.SubName += ramdiskSuffix
+	} else if c.InVendorRamdisk() && !c.OnlyInVendorRamdisk() {
+		c.Properties.SubName += vendorRamdiskSuffix
 	} else if c.InRecovery() && !c.OnlyInRecovery() {
 		c.Properties.SubName += recoverySuffix
 	} else if c.IsSdkVariant() && (c.Properties.SdkAndPlatformVariantVisibleToMake || c.SplitPerApiLevel()) {
@@ -1508,7 +1526,7 @@
 		// module is marked with 'bootstrap: true').
 		if c.HasStubsVariants() && c.AnyVariantDirectlyInAnyApex() && !c.InRamdisk() &&
 			!c.InRecovery() && !c.UseVndk() && !c.static() && !c.isCoverageVariant() &&
-			c.IsStubs() {
+			c.IsStubs() && !c.InVendorRamdisk() {
 			c.Properties.HideFromMake = false // unhide
 			// Note: this is still non-installable
 		}
@@ -2004,7 +2022,7 @@
 
 // Whether a module can link to another module, taking into
 // account NDK linking.
-func checkLinkType(ctx android.ModuleContext, from LinkableInterface, to LinkableInterface,
+func checkLinkType(ctx android.BaseModuleContext, from LinkableInterface, to LinkableInterface,
 	tag blueprint.DependencyTag) {
 
 	switch t := tag.(type) {
@@ -2044,6 +2062,10 @@
 		// Ramdisk code is not NDK
 		return
 	}
+	if from.InVendorRamdisk() {
+		// Vendor ramdisk code is not NDK
+		return
+	}
 	if from.InRecovery() {
 		// Recovery code is not NDK
 		return
@@ -2124,6 +2146,18 @@
 	}
 }
 
+func checkLinkTypeMutator(ctx android.BottomUpMutatorContext) {
+	if c, ok := ctx.Module().(*Module); ok {
+		ctx.VisitDirectDeps(func(dep android.Module) {
+			depTag := ctx.OtherModuleDependencyTag(dep)
+			ccDep, ok := dep.(LinkableInterface)
+			if ok {
+				checkLinkType(ctx, c, ccDep, depTag)
+			}
+		})
+	}
+}
+
 // Tests whether the dependent library is okay to be double loaded inside a single process.
 // If a library has a vendor variant and is a (transitive) dependency of an LLNDK library,
 // it is subject to be double loaded. Such lib should be explicitly marked as double_loadable: true
@@ -2132,15 +2166,15 @@
 	check := func(child, parent android.Module) bool {
 		to, ok := child.(*Module)
 		if !ok {
-			// follow thru cc.Defaults, etc.
-			return true
+			return false
 		}
 
 		if lib, ok := to.linker.(*libraryDecorator); !ok || !lib.shared() {
 			return false
 		}
 
-		// if target lib has no vendor variant, keep checking dependency graph
+		// Even if target lib has no vendor variant, keep checking dependency graph
+		// in case it depends on vendor_available but not double_loadable transtively.
 		if !to.HasVendorVariant() {
 			return true
 		}
@@ -2304,8 +2338,6 @@
 			return
 		}
 
-		checkLinkType(ctx, c, ccDep, depTag)
-
 		linkFile := ccDep.OutputFile()
 
 		if libDepTag, ok := depTag.(libraryDependencyTag); ok {
@@ -2348,7 +2380,7 @@
 					} else if apexInfo.IsForPlatform() {
 						// If not building for APEX, use stubs only when it is from
 						// an APEX (and not from platform)
-						// However, for host, ramdisk, recovery or bootstrap modules,
+						// However, for host, ramdisk, vendor_ramdisk, recovery or bootstrap modules,
 						// always link to non-stub variant
 						useStubs = dep.(android.ApexModule).AnyVariantDirectlyInAnyApex() && !c.bootstrap()
 						// Another exception: if this module is bundled with an APEX, then
@@ -2642,7 +2674,8 @@
 		}
 	}
 
-	if ctx.DeviceConfig().VndkUseCoreVariant() && ccDep.IsVndk() && !ccDep.MustUseVendorVariant() && !c.InRamdisk() && !c.InRecovery() {
+	if ctx.DeviceConfig().VndkUseCoreVariant() && ccDep.IsVndk() && !ccDep.MustUseVendorVariant() &&
+		!c.InRamdisk() && !c.InVendorRamdisk() && !c.InRecovery() {
 		// The vendor module is a no-vendor-variant VNDK library.  Depend on the
 		// core module instead.
 		return libName
@@ -2654,6 +2687,8 @@
 		return libName + vendorPublicLibrarySuffix
 	} else if ccDep.InRamdisk() && !ccDep.OnlyInRamdisk() {
 		return libName + ramdiskSuffix
+	} else if ccDep.InVendorRamdisk() && !ccDep.OnlyInVendorRamdisk() {
+		return libName + vendorRamdiskSuffix
 	} else if ccDep.InRecovery() && !ccDep.OnlyInRecovery() {
 		return libName + recoverySuffix
 	} else if ccDep.Module().Target().NativeBridge == android.NativeBridgeEnabled {
@@ -2684,6 +2719,10 @@
 	return c.InRamdisk()
 }
 
+func (c *Module) InstallInVendorRamdisk() bool {
+	return c.InVendorRamdisk()
+}
+
 func (c *Module) InstallInRecovery() bool {
 	return c.InRecovery()
 }
@@ -2784,6 +2823,8 @@
 		return "native:vendor"
 	} else if c.InRamdisk() {
 		return "native:ramdisk"
+	} else if c.InVendorRamdisk() {
+		return "native:vendor_ramdisk"
 	} else if c.InRecovery() {
 		return "native:recovery"
 	} else if c.Target().Os == android.Android && String(c.Properties.Sdk_version) != "" {
diff --git a/cc/cc_test.go b/cc/cc_test.go
index c3caac8..3982c0c 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -103,6 +103,7 @@
 }
 
 func testCcError(t *testing.T, pattern string, bp string) {
+	t.Helper()
 	config := TestConfig(buildDir, android.Android, nil, bp, nil)
 	config.TestProductVariables.DeviceVndkVersion = StringPtr("current")
 	config.TestProductVariables.Platform_vndk_version = StringPtr("VER")
@@ -111,6 +112,7 @@
 }
 
 func testCcErrorProductVndk(t *testing.T, pattern string, bp string) {
+	t.Helper()
 	config := TestConfig(buildDir, android.Android, nil, bp, nil)
 	config.TestProductVariables.DeviceVndkVersion = StringPtr("current")
 	config.TestProductVariables.ProductVndkVersion = StringPtr("current")
@@ -388,10 +390,12 @@
 
 	ctx := testCcWithConfig(t, config)
 
-	checkVndkModule(t, ctx, "libvndk", "vndk-VER", false, "", vendorVariant)
-	checkVndkModule(t, ctx, "libvndk_private", "vndk-VER", false, "", vendorVariant)
-	checkVndkModule(t, ctx, "libvndk_sp", "vndk-sp-VER", true, "", vendorVariant)
-	checkVndkModule(t, ctx, "libvndk_sp_private", "vndk-sp-VER", true, "", vendorVariant)
+	// subdir == "" because VNDK libs are not supposed to be installed separately.
+	// They are installed as part of VNDK APEX instead.
+	checkVndkModule(t, ctx, "libvndk", "", false, "", vendorVariant)
+	checkVndkModule(t, ctx, "libvndk_private", "", false, "", vendorVariant)
+	checkVndkModule(t, ctx, "libvndk_sp", "", true, "", vendorVariant)
+	checkVndkModule(t, ctx, "libvndk_sp_private", "", true, "", vendorVariant)
 
 	// Check VNDK snapshot output.
 
@@ -846,10 +850,11 @@
 		cc_library {
 			name: "libllndk",
 			shared_libs: ["libdoubleloadable"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -867,10 +872,11 @@
 		cc_library {
 			name: "libllndk",
 			shared_libs: ["libvndksp"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -924,10 +930,11 @@
 		cc_library {
 			name: "libllndk",
 			shared_libs: ["libcoreonly"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -1548,10 +1555,11 @@
 		cc_library {
 			name: "libllndk",
 			shared_libs: ["libnondoubleloadable"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -1570,10 +1578,11 @@
 			name: "libllndk",
 			no_libcrt: true,
 			shared_libs: ["libnondoubleloadable"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -1642,10 +1651,11 @@
 		cc_library {
 			name: "libllndk",
 			shared_libs: ["libcoreonly"],
+			llndk_stubs: "libllndk.llndk",
 		}
 
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 
@@ -1662,6 +1672,35 @@
 	`)
 }
 
+func TestCheckVndkMembershipBeforeDoubleLoadable(t *testing.T) {
+	testCcError(t, "module \"libvndksp\" variant .*: .*: VNDK-SP must only depend on VNDK-SP", `
+		cc_library {
+			name: "libvndksp",
+			shared_libs: ["libanothervndksp"],
+			vendor_available: true,
+			vndk: {
+				enabled: true,
+				support_system_process: true,
+			}
+		}
+
+		cc_library {
+			name: "libllndk",
+			shared_libs: ["libanothervndksp"],
+		}
+
+		llndk_library {
+			name: "libllndk",
+			symbol_file: "",
+		}
+
+		cc_library {
+			name: "libanothervndksp",
+			vendor_available: true,
+		}
+	`)
+}
+
 func TestVndkExt(t *testing.T) {
 	// This test checks the VNDK-Ext properties.
 	bp := `
@@ -2386,9 +2425,10 @@
 	bp := `
 		cc_library {
 			name: "libllndk",
+			llndk_stubs: "libllndk.llndk",
 		}
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 		cc_library {
@@ -2452,8 +2492,8 @@
 
 	ctx := testCcWithConfig(t, config)
 
-	checkVndkModule(t, ctx, "libvndk", "vndk-VER", false, "", productVariant)
-	checkVndkModule(t, ctx, "libvndk_sp", "vndk-sp-VER", true, "", productVariant)
+	checkVndkModule(t, ctx, "libvndk", "", false, "", productVariant)
+	checkVndkModule(t, ctx, "libvndk_sp", "", true, "", productVariant)
 }
 
 func TestEnforceProductVndkVersionErrors(t *testing.T) {
@@ -2589,16 +2629,18 @@
 		}
 		cc_library {
 			name: "libllndk",
+			llndk_stubs: "libllndk.llndk",
 		}
 		llndk_library {
-			name: "libllndk",
+			name: "libllndk.llndk",
 			symbol_file: "",
 		}
 		cc_library {
 			name: "libllndkprivate",
+			llndk_stubs: "libllndkprivate.llndk",
 		}
 		llndk_library {
-			name: "libllndkprivate",
+			name: "libllndkprivate.llndk",
 			vendor_available: false,
 			symbol_file: "",
 		}`
@@ -3012,9 +3054,10 @@
 	cc_library {
 		name: "libllndk",
 		stubs: { versions: ["1", "2"] },
+		llndk_stubs: "libllndk.llndk",
 	}
 	llndk_library {
-		name: "libllndk",
+		name: "libllndk.llndk",
 	}
 	`)
 	actual := ctx.ModuleVariantsForTests("libllndk.llndk")
@@ -3042,10 +3085,15 @@
 		export_include_dirs: ["my_include"],
 	}
 	llndk_library {
-		name: "libllndk",
+		name: "libllndk.llndk",
 		export_llndk_headers: ["libllndk_headers"],
 	}
 	cc_library {
+		name: "libllndk",
+		llndk_stubs: "libllndk.llndk",
+	}
+
+	cc_library {
 		name: "libvendor",
 		shared_libs: ["libllndk"],
 		vendor: true,
diff --git a/cc/config/global.go b/cc/config/global.go
index 1aa2621..a170652 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -53,13 +53,6 @@
 		"-Werror=pragma-pack",
 		"-Werror=pragma-pack-suspicious-include",
 		"-Werror=unreachable-code-loop-increment",
-
-		// -fdebug-compilation-dir=. is used to make both the action command line and the output
-		// independent of the working directory of the action.
-		// Using cc1 flags since RBE's input processor does not yet have the updated version
-		// of LLVM that promotes the cc1 flag to driver level flag.
-		// See: https://reviews.llvm.org/D63387
-		"-Xclang,-fdebug-compilation-dir,.",
 	}
 
 	commonGlobalConlyflags = []string{}
@@ -157,6 +150,10 @@
 var pctx = android.NewPackageContext("android/soong/cc/config")
 
 func init() {
+	if android.BuildOs == android.Linux {
+		commonGlobalCflags = append(commonGlobalCflags, "-fdebug-prefix-map=/proc/self/cwd=")
+	}
+
 	pctx.StaticVariable("CommonGlobalConlyflags", strings.Join(commonGlobalConlyflags, " "))
 	pctx.StaticVariable("DeviceGlobalCppflags", strings.Join(deviceGlobalCppflags, " "))
 	pctx.StaticVariable("DeviceGlobalLdflags", strings.Join(deviceGlobalLdflags, " "))
diff --git a/cc/fuzz.go b/cc/fuzz.go
index e81b40f..681e3bc 100644
--- a/cc/fuzz.go
+++ b/cc/fuzz.go
@@ -388,10 +388,10 @@
 			return
 		}
 
-		// Discard ramdisk + recovery modules, they're duplicates of
+		// Discard ramdisk + vendor_ramdisk + recovery modules, they're duplicates of
 		// fuzz targets we're going to package anyway.
 		if !ccModule.Enabled() || ccModule.Properties.PreventInstall ||
-			ccModule.InRamdisk() || ccModule.InRecovery() {
+			ccModule.InRamdisk() || ccModule.InVendorRamdisk() || ccModule.InRecovery() {
 			return
 		}
 
diff --git a/cc/genrule.go b/cc/genrule.go
index cce4a83..a5a58d2 100644
--- a/cc/genrule.go
+++ b/cc/genrule.go
@@ -24,10 +24,11 @@
 }
 
 type GenruleExtraProperties struct {
-	Vendor_available   *bool
-	Ramdisk_available  *bool
-	Recovery_available *bool
-	Sdk_version        *string
+	Vendor_available         *bool
+	Ramdisk_available        *bool
+	Vendor_ramdisk_available *bool
+	Recovery_available       *bool
+	Sdk_version              *string
 }
 
 // cc_genrule is a genrule that can depend on other cc_* objects.
@@ -68,6 +69,10 @@
 	return Bool(g.Ramdisk_available)
 }
 
+func (g *GenruleExtraProperties) VendorRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return Bool(g.Vendor_ramdisk_available)
+}
+
 func (g *GenruleExtraProperties) RecoveryVariantNeeded(ctx android.BaseModuleContext) bool {
 	return Bool(g.Recovery_available)
 }
diff --git a/cc/image.go b/cc/image.go
index 6710e94..ba091e1 100644
--- a/cc/image.go
+++ b/cc/image.go
@@ -27,12 +27,13 @@
 type imageVariantType string
 
 const (
-	coreImageVariant     imageVariantType = "core"
-	vendorImageVariant   imageVariantType = "vendor"
-	productImageVariant  imageVariantType = "product"
-	ramdiskImageVariant  imageVariantType = "ramdisk"
-	recoveryImageVariant imageVariantType = "recovery"
-	hostImageVariant     imageVariantType = "host"
+	coreImageVariant          imageVariantType = "core"
+	vendorImageVariant        imageVariantType = "vendor"
+	productImageVariant       imageVariantType = "product"
+	ramdiskImageVariant       imageVariantType = "ramdisk"
+	vendorRamdiskImageVariant imageVariantType = "vendor_ramdisk"
+	recoveryImageVariant      imageVariantType = "recovery"
+	hostImageVariant          imageVariantType = "host"
 )
 
 func (c *Module) getImageVariantType() imageVariantType {
@@ -44,6 +45,8 @@
 		return productImageVariant
 	} else if c.InRamdisk() {
 		return ramdiskImageVariant
+	} else if c.InVendorRamdisk() {
+		return vendorRamdiskImageVariant
 	} else if c.InRecovery() {
 		return recoveryImageVariant
 	} else {
@@ -83,6 +86,10 @@
 	return ctx.mod.InRamdisk()
 }
 
+func (ctx *moduleContextImpl) inVendorRamdisk() bool {
+	return ctx.mod.InVendorRamdisk()
+}
+
 func (ctx *moduleContextImpl) inRecovery() bool {
 	return ctx.mod.InRecovery()
 }
@@ -107,6 +114,10 @@
 	return c.ModuleBase.InRamdisk() || c.ModuleBase.InstallInRamdisk()
 }
 
+func (c *Module) InVendorRamdisk() bool {
+	return c.ModuleBase.InVendorRamdisk() || c.ModuleBase.InstallInVendorRamdisk()
+}
+
 func (c *Module) InRecovery() bool {
 	return c.ModuleBase.InRecovery() || c.ModuleBase.InstallInRecovery()
 }
@@ -115,6 +126,10 @@
 	return c.ModuleBase.InstallInRamdisk()
 }
 
+func (c *Module) OnlyInVendorRamdisk() bool {
+	return c.ModuleBase.InstallInVendorRamdisk()
+}
+
 func (c *Module) OnlyInRecovery() bool {
 	return c.ModuleBase.InstallInRecovery()
 }
@@ -165,6 +180,7 @@
 
 	var coreVariantNeeded bool = false
 	var ramdiskVariantNeeded bool = false
+	var vendorRamdiskVariantNeeded bool = false
 	var recoveryVariantNeeded bool = false
 
 	var vendorVariants []string
@@ -283,6 +299,15 @@
 		coreVariantNeeded = false
 	}
 
+	if Bool(m.Properties.Vendor_ramdisk_available) {
+		vendorRamdiskVariantNeeded = true
+	}
+
+	if m.ModuleBase.InstallInVendorRamdisk() {
+		vendorRamdiskVariantNeeded = true
+		coreVariantNeeded = false
+	}
+
 	if Bool(m.Properties.Recovery_available) {
 		recoveryVariantNeeded = true
 	}
@@ -301,6 +326,7 @@
 	}
 
 	m.Properties.RamdiskVariantNeeded = ramdiskVariantNeeded
+	m.Properties.VendorRamdiskVariantNeeded = vendorRamdiskVariantNeeded
 	m.Properties.RecoveryVariantNeeded = recoveryVariantNeeded
 	m.Properties.CoreVariantNeeded = coreVariantNeeded
 }
@@ -313,6 +339,10 @@
 	return c.Properties.RamdiskVariantNeeded
 }
 
+func (c *Module) VendorRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return c.Properties.VendorRamdiskVariantNeeded
+}
+
 func (c *Module) RecoveryVariantNeeded(ctx android.BaseModuleContext) bool {
 	return c.Properties.RecoveryVariantNeeded
 }
@@ -323,7 +353,7 @@
 
 func (c *Module) SetImageVariation(ctx android.BaseModuleContext, variant string, module android.Module) {
 	m := module.(*Module)
-	if variant == android.RamdiskVariation {
+	if variant == android.RamdiskVariation || variant == android.VendorRamdiskVariation {
 		m.MakeAsPlatform()
 	} else if variant == android.RecoveryVariation {
 		m.MakeAsPlatform()
diff --git a/cc/library.go b/cc/library.go
index 090abf9..0e0f143 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -110,6 +110,9 @@
 
 	// Inject boringssl hash into the shared library.  This is only intended for use by external/boringssl.
 	Inject_bssl_hash *bool `android:"arch_variant"`
+
+	// If this is an LLNDK library, the name of the equivalent llndk_library module.
+	Llndk_stubs *string
 }
 
 type StaticProperties struct {
@@ -695,6 +698,8 @@
 	stubsVersions(ctx android.BaseMutatorContext) []string
 	setAllStubsVersions([]string)
 	allStubsVersions() []string
+
+	implementationModuleName(name string) string
 }
 
 var _ libraryInterface = (*libraryDecorator)(nil)
@@ -1194,7 +1199,8 @@
 			isVendor := ctx.useVndk()
 			isOwnerPlatform := Bool(library.Properties.Sysprop.Platform)
 
-			if !ctx.inRamdisk() && !ctx.inRecovery() && (isProduct || (isOwnerPlatform == isVendor)) {
+			if !ctx.inRamdisk() && !ctx.inVendorRamdisk() && !ctx.inRecovery() &&
+				(isProduct || (isOwnerPlatform == isVendor)) {
 				dir = android.PathForModuleGen(ctx, "sysprop/public", "include")
 			}
 		}
@@ -1205,7 +1211,7 @@
 	}
 
 	if library.buildStubs() && !library.skipAPIDefine {
-		library.reexportFlags("-D" + versioningMacroName(ctx.baseModuleName()) + "=" + library.stubsVersion())
+		library.reexportFlags("-D" + versioningMacroName(ctx.Module().(*Module).ImplementationModuleName(ctx)) + "=" + library.stubsVersion())
 	}
 
 	library.flagExporter.setProvider(ctx)
@@ -1246,19 +1252,23 @@
 func (library *libraryDecorator) install(ctx ModuleContext, file android.Path) {
 	if library.shared() {
 		if ctx.Device() && ctx.useVndk() {
-			if ctx.isVndkSp() {
-				library.baseInstaller.subDir = "vndk-sp"
-			} else if ctx.isVndk() {
+			// set subDir for VNDK extensions
+			if ctx.isVndkExt() {
+				if ctx.isVndkSp() {
+					library.baseInstaller.subDir = "vndk-sp"
+				} else {
+					library.baseInstaller.subDir = "vndk"
+				}
+			}
+
+			// In some cases we want to use core variant for VNDK-Core libs
+			if ctx.isVndk() && !ctx.isVndkSp() && !ctx.isVndkExt() {
 				mayUseCoreVariant := true
 
 				if ctx.mustUseVendorVariant() {
 					mayUseCoreVariant = false
 				}
 
-				if ctx.isVndkExt() {
-					mayUseCoreVariant = false
-				}
-
 				if ctx.Config().CFIEnabledForPath(ctx.ModuleDir()) && ctx.Arch().ArchType == android.Arm64 {
 					mayUseCoreVariant = false
 				}
@@ -1269,15 +1279,12 @@
 						library.useCoreVariant = true
 					}
 				}
-				library.baseInstaller.subDir = "vndk"
 			}
 
-			// Append a version to vndk or vndk-sp directories on the system partition.
+			// do not install vndk libs
+			// vndk libs are packaged into VNDK APEX
 			if ctx.isVndk() && !ctx.isVndkExt() {
-				vndkVersion := ctx.DeviceConfig().PlatformVndkVersion()
-				if vndkVersion != "current" && vndkVersion != "" {
-					library.baseInstaller.subDir += "-" + vndkVersion
-				}
+				return
 			}
 		} else if len(library.Properties.Stubs.Versions) > 0 && !ctx.Host() && ctx.directlyInAnyApex() {
 			// Bionic libraries (e.g. libc.so) is installed to the bootstrap subdirectory.
@@ -1285,7 +1292,7 @@
 			// runtime APEX.
 			translatedArch := ctx.Target().NativeBridge == android.NativeBridgeEnabled
 			if InstallToBootstrap(ctx.baseModuleName(), ctx.Config()) && !library.buildStubs() &&
-				!translatedArch && !ctx.inRamdisk() && !ctx.inRecovery() {
+				!translatedArch && !ctx.inRamdisk() && !ctx.inVendorRamdisk() && !ctx.inRecovery() {
 				if ctx.Device() {
 					library.installSymlinkToRuntimeApex(ctx, file)
 				}
@@ -1300,7 +1307,7 @@
 	}
 
 	if Bool(library.Properties.Static_ndk_lib) && library.static() &&
-		!ctx.useVndk() && !ctx.inRamdisk() && !ctx.inRecovery() && ctx.Device() &&
+		!ctx.useVndk() && !ctx.inRamdisk() && !ctx.inVendorRamdisk() && !ctx.inRecovery() && ctx.Device() &&
 		library.baseLinker.sanitize.isUnsanitizedVariant() &&
 		!library.buildStubs() && ctx.sdkVersion() == "" {
 		installPath := getNdkSysrootBase(ctx).Join(
@@ -1358,6 +1365,10 @@
 	library.MutatedProperties.BuildStatic = false
 }
 
+func (library *libraryDecorator) implementationModuleName(name string) string {
+	return name
+}
+
 func (library *libraryDecorator) buildStubs() bool {
 	return library.MutatedProperties.BuildStubs
 }
@@ -1634,14 +1645,16 @@
 func CanBeOrLinkAgainstVersionVariants(module interface {
 	Host() bool
 	InRamdisk() bool
+	InVendorRamdisk() bool
 	InRecovery() bool
 }) bool {
-	return !module.Host() && !module.InRamdisk() && !module.InRecovery()
+	return !module.Host() && !module.InRamdisk() && !module.InVendorRamdisk() && !module.InRecovery()
 }
 
 func CanBeVersionVariant(module interface {
 	Host() bool
 	InRamdisk() bool
+	InVendorRamdisk() bool
 	InRecovery() bool
 	CcLibraryInterface() bool
 	Shared() bool
diff --git a/cc/linkable.go b/cc/linkable.go
index 4eb7220..177e0c4 100644
--- a/cc/linkable.go
+++ b/cc/linkable.go
@@ -40,6 +40,9 @@
 	InRamdisk() bool
 	OnlyInRamdisk() bool
 
+	InVendorRamdisk() bool
+	OnlyInVendorRamdisk() bool
+
 	InRecovery() bool
 	OnlyInRecovery() bool
 
diff --git a/cc/llndk_library.go b/cc/llndk_library.go
index 4425a10..9f4444d 100644
--- a/cc/llndk_library.go
+++ b/cc/llndk_library.go
@@ -72,6 +72,8 @@
 	movedToApex bool
 }
 
+var _ versionedInterface = (*llndkStubDecorator)(nil)
+
 func (stub *llndkStubDecorator) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags {
 	flags = stub.baseCompiler.compilerFlags(ctx, flags, deps)
 	return addStubLibraryCompilerFlags(flags)
@@ -101,12 +103,14 @@
 }
 
 func (stub *llndkStubDecorator) Name(name string) string {
+	if strings.HasSuffix(name, llndkLibrarySuffix) {
+		return name
+	}
 	return name + llndkLibrarySuffix
 }
 
 func (stub *llndkStubDecorator) linkerFlags(ctx ModuleContext, flags Flags) Flags {
-	stub.libraryDecorator.libName = strings.TrimSuffix(ctx.ModuleName(),
-		llndkLibrarySuffix)
+	stub.libraryDecorator.libName = stub.implementationModuleName(ctx.ModuleName())
 	return stub.libraryDecorator.linkerFlags(ctx, flags)
 }
 
@@ -133,7 +137,7 @@
 func (stub *llndkStubDecorator) link(ctx ModuleContext, flags Flags, deps PathDeps,
 	objs Objects) android.Path {
 
-	impl := ctx.GetDirectDepWithTag(ctx.baseModuleName(), llndkImplDep)
+	impl := ctx.GetDirectDepWithTag(stub.implementationModuleName(ctx.ModuleName()), llndkImplDep)
 	if implApexModule, ok := impl.(android.ApexModule); ok {
 		stub.movedToApex = implApexModule.DirectlyInAnyApex()
 	}
@@ -167,6 +171,10 @@
 	return false
 }
 
+func (stub *llndkStubDecorator) implementationModuleName(name string) string {
+	return strings.TrimSuffix(name, llndkLibrarySuffix)
+}
+
 func (stub *llndkStubDecorator) buildStubs() bool {
 	return true
 }
diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index f2ad652..02b38a6 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -100,10 +100,16 @@
 	unversionedUntil android.ApiLevel
 }
 
+var _ versionedInterface = (*stubDecorator)(nil)
+
 func shouldUseVersionScript(ctx BaseModuleContext, stub *stubDecorator) bool {
 	return stub.apiLevel.GreaterThanOrEqualTo(stub.unversionedUntil)
 }
 
+func (stub *stubDecorator) implementationModuleName(name string) string {
+	return strings.TrimSuffix(name, ndkLibrarySuffix)
+}
+
 func ndkLibraryVersions(ctx android.BaseMutatorContext, from android.ApiLevel) []string {
 	var versions []android.ApiLevel
 	versionStrs := []string{}
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 43198c1..b1326d9 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -376,8 +376,8 @@
 	}
 
 	// HWASan ramdisk (which is built from recovery) goes over some bootloader limit.
-	// Keep libc instrumented so that ramdisk / recovery can run hwasan-instrumented code if necessary.
-	if (ctx.inRamdisk() || ctx.inRecovery()) && !strings.HasPrefix(ctx.ModuleDir(), "bionic/libc") {
+	// Keep libc instrumented so that ramdisk / vendor_ramdisk / recovery can run hwasan-instrumented code if necessary.
+	if (ctx.inRamdisk() || ctx.inVendorRamdisk() || ctx.inRecovery()) && !strings.HasPrefix(ctx.ModuleDir(), "bionic/libc") {
 		s.Hwaddress = nil
 	}
 
diff --git a/cc/testing.go b/cc/testing.go
index 52f0829..019a186 100644
--- a/cc/testing.go
+++ b/cc/testing.go
@@ -172,9 +172,10 @@
 			stubs: {
 				versions: ["27", "28", "29"],
 			},
-		}
+			llndk_stubs: "libc.llndk",
+}
 		llndk_library {
-			name: "libc",
+			name: "libc.llndk",
 			symbol_file: "",
 			sdk_version: "current",
 		}
@@ -193,9 +194,10 @@
 				"//apex_available:platform",
 				"myapex"
 			],
+			llndk_stubs: "libm.llndk",
 		}
 		llndk_library {
-			name: "libm",
+			name: "libm.llndk",
 			symbol_file: "",
 			sdk_version: "current",
 		}
@@ -253,9 +255,10 @@
 				"//apex_available:platform",
 				"myapex"
 			],
+			llndk_stubs: "libdl.llndk",
 		}
 		llndk_library {
-			name: "libdl",
+			name: "libdl.llndk",
 			symbol_file: "",
 			sdk_version: "current",
 		}
@@ -265,9 +268,10 @@
 			nocrt: true,
 			system_shared_libs: [],
 			recovery_available: true,
+			llndk_stubs: "libft2.llndk",
 		}
 		llndk_library {
-			name: "libft2",
+			name: "libft2.llndk",
 			symbol_file: "",
 			vendor_available: false,
 			sdk_version: "current",
diff --git a/cc/vendor_snapshot.go b/cc/vendor_snapshot.go
index 64e3ea8..78bde38 100644
--- a/cc/vendor_snapshot.go
+++ b/cc/vendor_snapshot.go
@@ -1005,9 +1005,10 @@
 		// But we can't just check SocSpecific() since we already passed the image mutator.
 		// Check ramdisk and recovery to see if we are real "vendor: true" module.
 		ramdisk_available := module.InRamdisk() && !module.OnlyInRamdisk()
+		vendor_ramdisk_available := module.InVendorRamdisk() && !module.OnlyInVendorRamdisk()
 		recovery_available := module.InRecovery() && !module.OnlyInRecovery()
 
-		if !ramdisk_available && !recovery_available {
+		if !ramdisk_available && !recovery_available && !vendor_ramdisk_available {
 			vendorSnapshotsLock.Lock()
 			defer vendorSnapshotsLock.Unlock()
 
diff --git a/cc/vndk.go b/cc/vndk.go
index 981e039..6d5b074 100644
--- a/cc/vndk.go
+++ b/cc/vndk.go
@@ -129,7 +129,7 @@
 	return "native:vendor:vndkspext"
 }
 
-func (vndk *vndkdep) vndkCheckLinkType(ctx android.ModuleContext, to *Module, tag blueprint.DependencyTag) {
+func (vndk *vndkdep) vndkCheckLinkType(ctx android.BaseModuleContext, to *Module, tag blueprint.DependencyTag) {
 	if to.linker == nil {
 		return
 	}
@@ -247,7 +247,7 @@
 }
 
 func isLlndkLibrary(baseModuleName string, config android.Config) bool {
-	_, ok := llndkLibraries(config)[baseModuleName]
+	_, ok := llndkLibraries(config)[strings.TrimSuffix(baseModuleName, llndkLibrarySuffix)]
 	return ok
 }
 
@@ -290,8 +290,8 @@
 
 func processLlndkLibrary(mctx android.BottomUpMutatorContext, m *Module) {
 	lib := m.linker.(*llndkStubDecorator)
-	name := m.BaseModuleName()
-	filename := m.BaseModuleName() + ".so"
+	name := m.ImplementationModuleName(mctx)
+	filename := name + ".so"
 
 	vndkLibrariesLock.Lock()
 	defer vndkLibrariesLock.Unlock()
@@ -540,6 +540,9 @@
 	if m.Target().NativeBridge == android.NativeBridgeEnabled {
 		return nil, "", false
 	}
+	// !inVendor: There's product/vendor variants for VNDK libs. We only care about vendor variants.
+	// !installable: Snapshot only cares about "installable" modules.
+	// isSnapshotPrebuilt: Snapshotting a snapshot doesn't make sense.
 	if !m.inVendor() || !m.installable(apexInfo) || m.isSnapshotPrebuilt() {
 		return nil, "", false
 	}
@@ -834,8 +837,8 @@
 		if m, ok := module.(*Module); ok {
 			if llndk, ok := m.linker.(*llndkStubDecorator); ok {
 				// Skip bionic libs, they are handled in different manner
-				name := m.BaseModuleName()
-				if llndk.movedToApex && !isBionic(m.BaseModuleName()) {
+				name := llndk.implementationModuleName(m.BaseModuleName())
+				if llndk.movedToApex && !isBionic(name) {
 					movedToApexLlndkLibraries[name] = true
 				}
 			}
diff --git a/cc/vndk_prebuilt.go b/cc/vndk_prebuilt.go
index 3556d94..82a7732 100644
--- a/cc/vndk_prebuilt.go
+++ b/cc/vndk_prebuilt.go
@@ -201,21 +201,7 @@
 }
 
 func (p *vndkPrebuiltLibraryDecorator) install(ctx ModuleContext, file android.Path) {
-	arches := ctx.DeviceConfig().Arches()
-	if len(arches) == 0 || arches[0].ArchType.String() != p.arch() {
-		return
-	}
-	if ctx.DeviceConfig().BinderBitness() != p.binderBit() {
-		return
-	}
-	if p.shared() {
-		if ctx.isVndkSp() {
-			p.baseInstaller.subDir = "vndk-sp-" + p.version()
-		} else if ctx.isVndk() {
-			p.baseInstaller.subDir = "vndk-" + p.version()
-		}
-		p.baseInstaller.install(ctx, file)
-	}
+	// do not install vndk libs
 }
 
 func vndkPrebuiltSharedLibrary() *Module {
diff --git a/etc/prebuilt_etc.go b/etc/prebuilt_etc.go
index 664cb51..337ad88 100644
--- a/etc/prebuilt_etc.go
+++ b/etc/prebuilt_etc.go
@@ -61,6 +61,9 @@
 	// Make this module available when building for ramdisk.
 	Ramdisk_available *bool
 
+	// Make this module available when building for vendor ramdisk.
+	Vendor_ramdisk_available *bool
+
 	// Make this module available when building for recovery.
 	Recovery_available *bool
 
@@ -105,6 +108,18 @@
 	return p.inRamdisk()
 }
 
+func (p *PrebuiltEtc) inVendorRamdisk() bool {
+	return p.ModuleBase.InVendorRamdisk() || p.ModuleBase.InstallInVendorRamdisk()
+}
+
+func (p *PrebuiltEtc) onlyInVendorRamdisk() bool {
+	return p.ModuleBase.InstallInVendorRamdisk()
+}
+
+func (p *PrebuiltEtc) InstallInVendorRamdisk() bool {
+	return p.inVendorRamdisk()
+}
+
 func (p *PrebuiltEtc) inRecovery() bool {
 	return p.ModuleBase.InRecovery() || p.ModuleBase.InstallInRecovery()
 }
@@ -122,13 +137,18 @@
 func (p *PrebuiltEtc) ImageMutatorBegin(ctx android.BaseModuleContext) {}
 
 func (p *PrebuiltEtc) CoreVariantNeeded(ctx android.BaseModuleContext) bool {
-	return !p.ModuleBase.InstallInRecovery() && !p.ModuleBase.InstallInRamdisk()
+	return !p.ModuleBase.InstallInRecovery() && !p.ModuleBase.InstallInRamdisk() &&
+		!p.ModuleBase.InstallInVendorRamdisk()
 }
 
 func (p *PrebuiltEtc) RamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
 	return proptools.Bool(p.properties.Ramdisk_available) || p.ModuleBase.InstallInRamdisk()
 }
 
+func (p *PrebuiltEtc) VendorRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return proptools.Bool(p.properties.Vendor_ramdisk_available) || p.ModuleBase.InstallInVendorRamdisk()
+}
+
 func (p *PrebuiltEtc) RecoveryVariantNeeded(ctx android.BaseModuleContext) bool {
 	return proptools.Bool(p.properties.Recovery_available) || p.ModuleBase.InstallInRecovery()
 }
@@ -228,6 +248,9 @@
 	if p.inRamdisk() && !p.onlyInRamdisk() {
 		nameSuffix = ".ramdisk"
 	}
+	if p.inVendorRamdisk() && !p.onlyInVendorRamdisk() {
+		nameSuffix = ".vendor_ramdisk"
+	}
 	if p.inRecovery() && !p.onlyInRecovery() {
 		nameSuffix = ".recovery"
 	}
diff --git a/genrule/genrule.go b/genrule/genrule.go
index 99d6207..b09c195 100644
--- a/genrule/genrule.go
+++ b/genrule/genrule.go
@@ -605,6 +605,7 @@
 func (x noopImageInterface) ImageMutatorBegin(android.BaseModuleContext)                 {}
 func (x noopImageInterface) CoreVariantNeeded(android.BaseModuleContext) bool            { return false }
 func (x noopImageInterface) RamdiskVariantNeeded(android.BaseModuleContext) bool         { return false }
+func (x noopImageInterface) VendorRamdiskVariantNeeded(android.BaseModuleContext) bool   { return false }
 func (x noopImageInterface) RecoveryVariantNeeded(android.BaseModuleContext) bool        { return false }
 func (x noopImageInterface) ExtraImageVariations(ctx android.BaseModuleContext) []string { return nil }
 func (x noopImageInterface) SetImageVariation(ctx android.BaseModuleContext, variation string, module android.Module) {
diff --git a/java/aar.go b/java/aar.go
index f1f6848..157d677 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -536,6 +536,8 @@
 		ctx.CheckbuildFile(a.aarFile)
 	}
 
+	a.exportedProguardFlagFiles = append(a.exportedProguardFlagFiles,
+		android.PathsForModuleSrc(ctx, a.dexProperties.Optimize.Proguard_flags_files)...)
 	ctx.VisitDirectDeps(func(m android.Module) {
 		if lib, ok := m.(AndroidLibraryDependency); ok && ctx.OtherModuleDependencyTag(m) == staticLibTag {
 			a.exportedProguardFlagFiles = append(a.exportedProguardFlagFiles, lib.ExportedProguardFlagFiles()...)
diff --git a/java/app_test.go b/java/app_test.go
index 49ed3aa..cec8a62 100644
--- a/java/app_test.go
+++ b/java/app_test.go
@@ -3491,3 +3491,34 @@
 		})
 	}
 }
+
+func TestExportedProguardFlagFiles(t *testing.T) {
+	ctx, _ := testJava(t, `
+		android_app {
+			name: "foo",
+			sdk_version: "current",
+			static_libs: ["lib1"],
+		}
+
+		android_library {
+			name: "lib1",
+			sdk_version: "current",
+			optimize: {
+				proguard_flags_files: ["lib1proguard.cfg"],
+			}
+		}
+	`)
+
+	m := ctx.ModuleForTests("foo", "android_common")
+	hasLib1Proguard := false
+	for _, s := range m.Rule("java.r8").Implicits.Strings() {
+		if s == "lib1proguard.cfg" {
+			hasLib1Proguard = true
+			break
+		}
+	}
+
+	if !hasLib1Proguard {
+		t.Errorf("App does not use library proguard config")
+	}
+}
diff --git a/java/dexpreopt_bootjars.go b/java/dexpreopt_bootjars.go
index 9f49786..629d34f 100644
--- a/java/dexpreopt_bootjars.go
+++ b/java/dexpreopt_bootjars.go
@@ -270,7 +270,7 @@
 	apexInfo := ctx.ModuleProvider(module, android.ApexInfoProvider).(android.ApexInfo)
 	fromUpdatableApex := isApexModule && apexInfo.Updatable
 	if image.name == artBootImageName {
-		if isApexModule && len(apexInfo.InApexes) > 0 && allHavePrefix(apexInfo.InApexes, "com.android.art.") {
+		if isApexModule && len(apexInfo.InApexes) > 0 && allHavePrefix(apexInfo.InApexes, "com.android.art") {
 			// ok: found the jar in the ART apex
 		} else if isApexModule && apexInfo.IsForPlatform() && isHostdex(module) {
 			// exception (skip and continue): special "hostdex" platform variant
@@ -301,7 +301,7 @@
 
 func allHavePrefix(list []string, prefix string) bool {
 	for _, s := range list {
-		if !strings.HasPrefix(s, prefix) {
+		if s != prefix && !strings.HasPrefix(s, prefix+".") {
 			return false
 		}
 	}
diff --git a/rust/bindgen.go b/rust/bindgen.go
index 68f219e..3db2d65 100644
--- a/rust/bindgen.go
+++ b/rust/bindgen.go
@@ -150,6 +150,18 @@
 
 	esc := proptools.NinjaAndShellEscapeList
 
+	// Filter out invalid cflags
+	for _, flag := range b.ClangProperties.Cflags {
+		if flag == "-x c++" || flag == "-xc++" {
+			ctx.PropertyErrorf("cflags",
+				"-x c++ should not be specified in cflags; setting cpp_std specifies this is a C++ header, or change the file extension to '.hpp' or '.hh'")
+		}
+		if strings.HasPrefix(flag, "-std=") {
+			ctx.PropertyErrorf("cflags",
+				"-std should not be specified in cflags; instead use c_std or cpp_std")
+		}
+	}
+
 	// Module defined clang flags and include paths
 	cflags = append(cflags, esc(b.ClangProperties.Cflags)...)
 	for _, include := range b.ClangProperties.Local_include_dirs {
diff --git a/rust/bindgen_test.go b/rust/bindgen_test.go
index 9cccf13..c7ce42b 100644
--- a/rust/bindgen_test.go
+++ b/rust/bindgen_test.go
@@ -134,3 +134,29 @@
 		t.Errorf("cpp_std value not passed in to rust_bindgen as a clang flag")
 	}
 }
+
+func TestBindgenDisallowedFlags(t *testing.T) {
+	// Make sure passing '-x c++' to cflags generates an error
+	testRustError(t, "cflags: -x c\\+\\+ should not be specified in cflags.*", `
+		rust_bindgen {
+			name: "libbad_flag",
+			wrapper_src: "src/any.h",
+			crate_name: "bindgen",
+			stem: "libbindgen",
+			source_stem: "bindings",
+			cflags: ["-x c++"]
+		}
+	`)
+
+	// Make sure passing '-std=' to cflags generates an error
+	testRustError(t, "cflags: -std should not be specified in cflags.*", `
+		rust_bindgen {
+			name: "libbad_flag",
+			wrapper_src: "src/any.h",
+			crate_name: "bindgen",
+			stem: "libbindgen",
+			source_stem: "bindings",
+			cflags: ["-std=foo"]
+		}
+	`)
+}
diff --git a/rust/config/allowed_list.go b/rust/config/allowed_list.go
index b9a879a..b5c70dc 100644
--- a/rust/config/allowed_list.go
+++ b/rust/config/allowed_list.go
@@ -6,10 +6,11 @@
 	// for an example.
 	// TODO(b/160223496): enable rustfmt globally.
 	RustAllowedPaths = []string{
+		"external/adhd",
+		"external/crosvm",
 		"external/minijail",
 		"external/rust",
-		"external/crosvm",
-		"external/adhd",
+		"external/vm_tools/p9",
 		"frameworks/native/libs/binder/rust",
 		"packages/modules/Virtualization",
 		"prebuilts/rust",
diff --git a/rust/rust.go b/rust/rust.go
index 1b999d7..77d9a90 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -118,6 +118,10 @@
 	return mod.InRamdisk()
 }
 
+func (mod *Module) VendorRamdiskVariantNeeded(android.BaseModuleContext) bool {
+	return mod.InVendorRamdisk()
+}
+
 func (mod *Module) RecoveryVariantNeeded(android.BaseModuleContext) bool {
 	return mod.InRecovery()
 }
@@ -185,6 +189,10 @@
 	return false
 }
 
+func (mod *Module) OnlyInVendorRamdisk() bool {
+	return false
+}
+
 func (mod *Module) OnlyInRecovery() bool {
 	return false
 }
diff --git a/scripts/build-mainline-modules.sh b/scripts/build-mainline-modules.sh
index c5ec8d1..b8dd7aa 100755
--- a/scripts/build-mainline-modules.sh
+++ b/scripts/build-mainline-modules.sh
@@ -3,13 +3,13 @@
 # Non exhaustive list of modules where we want prebuilts. More can be added as
 # needed.
 MAINLINE_MODULES=(
+  com.android.art
   com.android.art.debug
-  com.android.art.release
   com.android.art.testing
   com.android.conscrypt
+  com.android.i18n
   com.android.runtime
   com.android.tzdata
-  com.android.i18n
 )
 
 # List of SDKs and module exports we know of.
diff --git a/sdk/cc_sdk_test.go b/sdk/cc_sdk_test.go
index c214e75..c1813ec 100644
--- a/sdk/cc_sdk_test.go
+++ b/sdk/cc_sdk_test.go
@@ -120,10 +120,8 @@
         android_arm64: {
             srcs: ["android/arm64/lib/sdkmember.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/sdkmember.so"],
         },
     },
@@ -143,10 +141,8 @@
         android_arm64: {
             srcs: ["android/arm64/lib/sdkmember.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/sdkmember.so"],
         },
     },
@@ -162,7 +158,7 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
             enabled: true,
         },
     },
@@ -670,20 +666,21 @@
             enabled: false,
         },
         linux_glibc: {
-            enabled: true,
             compile_multilib: "both",
         },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/bin/mynativebinary"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/bin/mynativebinary"],
         },
         windows: {
-            enabled: true,
             compile_multilib: "64",
         },
         windows_x86_64: {
+            enabled: true,
             srcs: ["windows/x86_64/bin/mynativebinary.exe"],
         },
     },
@@ -701,20 +698,21 @@
             enabled: false,
         },
         linux_glibc: {
-            enabled: true,
             compile_multilib: "both",
         },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/bin/mynativebinary"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/bin/mynativebinary"],
         },
         windows: {
-            enabled: true,
             compile_multilib: "64",
         },
         windows_x86_64: {
+            enabled: true,
             srcs: ["windows/x86_64/bin/mynativebinary.exe"],
         },
     },
@@ -727,15 +725,20 @@
     host_supported: true,
     native_binaries: ["myexports_mynativebinary@current"],
     target: {
+        windows: {
+            compile_multilib: "64",
+        },
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
             enabled: true,
         },
-        windows: {
+        linux_glibc_x86: {
             enabled: true,
-            compile_multilib: "64",
+        },
+        windows_x86_64: {
+            enabled: true,
         },
     },
 }
@@ -811,10 +814,8 @@
         host: {
             enabled: false,
         },
-        linux_bionic: {
-            enabled: true,
-        },
         linux_bionic_x86_64: {
+            enabled: true,
             srcs: ["x86_64/bin/mynativebinary"],
         },
     },
@@ -832,10 +833,8 @@
         host: {
             enabled: false,
         },
-        linux_bionic: {
-            enabled: true,
-        },
         linux_bionic_x86_64: {
+            enabled: true,
             srcs: ["x86_64/bin/mynativebinary"],
         },
     },
@@ -854,10 +853,8 @@
         host: {
             enabled: false,
         },
-        linux_bionic: {
-            enabled: true,
-        },
         linux_bionic_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.so"],
         },
     },
@@ -875,10 +872,8 @@
         host: {
             enabled: false,
         },
-        linux_bionic: {
-            enabled: true,
-        },
         linux_bionic_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.so"],
         },
     },
@@ -896,7 +891,7 @@
         host: {
             enabled: false,
         },
-        linux_bionic: {
+        linux_bionic_x86_64: {
             enabled: true,
         },
     },
@@ -952,13 +947,12 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/bin/linker"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/bin/linker"],
         },
     },
@@ -978,13 +972,12 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/bin/linker"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/bin/linker"],
         },
     },
@@ -1000,7 +993,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -1345,14 +1341,13 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.so"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/lib/mynativelib.so"],
             export_include_dirs: ["x86/include_gen/mynativelib"],
         },
@@ -1373,14 +1368,13 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.so"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/lib/mynativelib.so"],
             export_include_dirs: ["x86/include_gen/mynativelib"],
         },
@@ -1397,7 +1391,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -1464,20 +1461,21 @@
             enabled: false,
         },
         linux_glibc: {
-            enabled: true,
             compile_multilib: "both",
         },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/mynativelib.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/mynativelib.so"],
         },
         windows: {
-            enabled: true,
             compile_multilib: "64",
         },
         windows_x86_64: {
+            enabled: true,
             srcs: ["windows/x86_64/lib/mynativelib.dll"],
         },
     },
@@ -1495,20 +1493,21 @@
             enabled: false,
         },
         linux_glibc: {
-            enabled: true,
             compile_multilib: "both",
         },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/mynativelib.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/mynativelib.so"],
         },
         windows: {
-            enabled: true,
             compile_multilib: "64",
         },
         windows_x86_64: {
+            enabled: true,
             srcs: ["windows/x86_64/lib/mynativelib.dll"],
         },
     },
@@ -1521,15 +1520,20 @@
     host_supported: true,
     native_shared_libs: ["mysdk_mynativelib@current"],
     target: {
+        windows: {
+            compile_multilib: "64",
+        },
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
             enabled: true,
         },
-        windows: {
+        linux_glibc_x86: {
             enabled: true,
-            compile_multilib: "64",
+        },
+        windows_x86_64: {
+            enabled: true,
         },
     },
 }
@@ -1669,14 +1673,13 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.a"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/lib/mynativelib.a"],
             export_include_dirs: ["x86/include_gen/mynativelib"],
         },
@@ -1696,14 +1699,13 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.a"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["x86/lib/mynativelib.a"],
             export_include_dirs: ["x86/include_gen/mynativelib"],
         },
@@ -1720,7 +1722,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -1885,10 +1890,8 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.a"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
@@ -1908,10 +1911,8 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["x86_64/lib/mynativelib.a"],
             export_include_dirs: ["x86_64/include_gen/mynativelib"],
         },
@@ -1929,7 +1930,7 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
             enabled: true,
         },
     },
@@ -2027,7 +2028,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2046,7 +2050,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2062,7 +2069,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2118,9 +2128,14 @@
             export_include_dirs: ["android/include/include-android"],
         },
         linux_glibc: {
-            enabled: true,
             export_include_dirs: ["linux_glibc/include/include-host"],
         },
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
+            enabled: true,
+        },
     },
 }
 
@@ -2140,9 +2155,14 @@
             export_include_dirs: ["android/include/include-android"],
         },
         linux_glibc: {
-            enabled: true,
             export_include_dirs: ["linux_glibc/include/include-host"],
         },
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
+            enabled: true,
+        },
     },
 }
 
@@ -2155,7 +2175,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2346,13 +2369,12 @@
         android_arm: {
             srcs: ["android/arm/lib/sslvariants.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/sslvariants.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/sslvariants.so"],
         },
     },
@@ -2377,13 +2399,12 @@
         android_arm: {
             srcs: ["android/arm/lib/sslvariants.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/sslvariants.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/sslvariants.so"],
         },
     },
@@ -2398,7 +2419,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2536,13 +2560,12 @@
         android_arm: {
             srcs: ["android/arm/lib/stubslib.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/stubslib.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/stubslib.so"],
         },
     },
@@ -2571,13 +2594,12 @@
         android_arm: {
             srcs: ["android/arm/lib/stubslib.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/stubslib.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/stubslib.so"],
         },
     },
@@ -2592,7 +2614,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
@@ -2637,13 +2662,12 @@
         android_arm: {
             srcs: ["android/arm/lib/mylib.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/mylib-host.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/mylib-host.so"],
         },
     },
@@ -2666,13 +2690,12 @@
         android_arm: {
             srcs: ["android/arm/lib/mylib.so"],
         },
-        linux_glibc: {
-            enabled: true,
-        },
         linux_glibc_x86_64: {
+            enabled: true,
             srcs: ["linux_glibc/x86_64/lib/mylib-host.so"],
         },
         linux_glibc_x86: {
+            enabled: true,
             srcs: ["linux_glibc/x86/lib/mylib-host.so"],
         },
     },
@@ -2687,7 +2710,10 @@
         host: {
             enabled: false,
         },
-        linux_glibc: {
+        linux_glibc_x86_64: {
+            enabled: true,
+        },
+        linux_glibc_x86: {
             enabled: true,
         },
     },
diff --git a/sdk/update.go b/sdk/update.go
index f29b5a0..7bf5dea 100644
--- a/sdk/update.go
+++ b/sdk/update.go
@@ -347,34 +347,11 @@
 
 	targetPropertySet := snapshotModule.AddPropertySet("target")
 
-	// If host is supported and any member is host OS dependent then disable host
-	// by default, so that we can enable each host OS variant explicitly. This
-	// avoids problems with implicitly enabled OS variants when the snapshot is
-	// used, which might be different from this run (e.g. different build OS).
-	hasHostOsDependentMember := false
-	if s.HostSupported() {
-		for _, memberRef := range memberRefs {
-			if memberRef.memberType.IsHostOsDependent() {
-				hasHostOsDependentMember = true
-				break
-			}
-		}
-		if hasHostOsDependentMember {
-			hostPropertySet := targetPropertySet.AddPropertySet("host")
-			hostPropertySet.AddProperty("enabled", false)
-		}
-	}
-
 	// Iterate over the os types in a fixed order.
 	for _, osType := range s.getPossibleOsTypes() {
 		if sdkVariant, ok := osTypeToMemberProperties[osType]; ok {
 			osPropertySet := targetPropertySet.AddPropertySet(sdkVariant.Target().Os.Name)
 
-			// Enable the variant explicitly when we've disabled it by default on host.
-			if hasHostOsDependentMember && osType.Class == android.Host {
-				osPropertySet.AddProperty("enabled", true)
-			}
-
 			variantProps := variantToProperties[sdkVariant]
 			if variantProps.Compile_multilib != "" && variantProps.Compile_multilib != "both" {
 				osPropertySet.AddProperty("compile_multilib", variantProps.Compile_multilib)
@@ -384,6 +361,31 @@
 		}
 	}
 
+	// If host is supported and any member is host OS dependent then disable host
+	// by default, so that we can enable each host OS variant explicitly. This
+	// avoids problems with implicitly enabled OS variants when the snapshot is
+	// used, which might be different from this run (e.g. different build OS).
+	if s.HostSupported() {
+		var supportedHostTargets []string
+		for _, memberRef := range memberRefs {
+			if memberRef.memberType.IsHostOsDependent() && memberRef.variant.Target().Os.Class == android.Host {
+				targetString := memberRef.variant.Target().Os.String() + "_" + memberRef.variant.Target().Arch.ArchType.String()
+				if !android.InList(targetString, supportedHostTargets) {
+					supportedHostTargets = append(supportedHostTargets, targetString)
+				}
+			}
+		}
+		if len(supportedHostTargets) > 0 {
+			hostPropertySet := targetPropertySet.AddPropertySet("host")
+			hostPropertySet.AddProperty("enabled", false)
+		}
+		// Enable the <os>_<arch> variant explicitly when we've disabled it by default on host.
+		for _, hostTarget := range supportedHostTargets {
+			propertySet := targetPropertySet.AddPropertySet(hostTarget)
+			propertySet.AddProperty("enabled", true)
+		}
+	}
+
 	// Prune any empty property sets.
 	snapshotModule.transform(pruneEmptySetTransformer{})
 
@@ -984,7 +986,7 @@
 			archTypeName := archType.Name
 
 			archVariants := variantsByArchName[archTypeName]
-			archInfo := newArchSpecificInfo(ctx, archType, osSpecificVariantPropertiesFactory, archVariants)
+			archInfo := newArchSpecificInfo(ctx, archType, osType, osSpecificVariantPropertiesFactory, archVariants)
 
 			osInfo.archInfos = append(osInfo.archInfos, archInfo)
 		}
@@ -1067,11 +1069,6 @@
 		osPropertySet = targetPropertySet.AddPropertySet(osType.Name)
 		archPropertySet = targetPropertySet
 
-		// Enable the variant explicitly when we've disabled it by default on host.
-		if ctx.memberType.IsHostOsDependent() && osType.Class == android.Host {
-			osPropertySet.AddProperty("enabled", true)
-		}
-
 		// Arch specific properties need to be added to an os and arch specific
 		// section prefixed with <os>_.
 		archOsPrefix = osType.Name + "_"
@@ -1105,6 +1102,7 @@
 	baseInfo
 
 	archType android.ArchType
+	osType   android.OsType
 
 	linkInfos []*linkTypeSpecificInfo
 }
@@ -1113,10 +1111,10 @@
 
 // Create a new archTypeSpecificInfo for the specified arch type and its properties
 // structures populated with information from the variants.
-func newArchSpecificInfo(ctx android.SdkMemberContext, archType android.ArchType, variantPropertiesFactory variantPropertiesFactoryFunc, archVariants []android.Module) *archTypeSpecificInfo {
+func newArchSpecificInfo(ctx android.SdkMemberContext, archType android.ArchType, osType android.OsType, variantPropertiesFactory variantPropertiesFactoryFunc, archVariants []android.Module) *archTypeSpecificInfo {
 
 	// Create an arch specific info into which the variant properties can be copied.
-	archInfo := &archTypeSpecificInfo{archType: archType}
+	archInfo := &archTypeSpecificInfo{archType: archType, osType: osType}
 
 	// Create the properties into which the arch type specific properties will be
 	// added.
@@ -1180,6 +1178,10 @@
 func (archInfo *archTypeSpecificInfo) addToPropertySet(ctx *memberContext, archPropertySet android.BpPropertySet, archOsPrefix string) {
 	archTypeName := archInfo.archType.Name
 	archTypePropertySet := archPropertySet.AddPropertySet(archOsPrefix + archTypeName)
+	// Enable the <os>_<arch> variant explicitly when we've disabled it by default on host.
+	if ctx.memberType.IsHostOsDependent() && archInfo.osType.Class == android.Host {
+		archTypePropertySet.AddProperty("enabled", true)
+	}
 	addSdkMemberPropertiesToSet(ctx, archInfo.Properties, archTypePropertySet)
 
 	for _, linkInfo := range archInfo.linkInfos {
diff --git a/sh/sh_binary.go b/sh/sh_binary.go
index e807877..6f40ae4 100644
--- a/sh/sh_binary.go
+++ b/sh/sh_binary.go
@@ -68,6 +68,9 @@
 	// Make this module available when building for ramdisk.
 	Ramdisk_available *bool
 
+	// Make this module available when building for vendor ramdisk.
+	Vendor_ramdisk_available *bool
+
 	// Make this module available when building for recovery.
 	Recovery_available *bool
 }
@@ -176,6 +179,10 @@
 	return proptools.Bool(s.properties.Ramdisk_available) || s.ModuleBase.InstallInRamdisk()
 }
 
+func (s *ShBinary) VendorRamdiskVariantNeeded(ctx android.BaseModuleContext) bool {
+	return proptools.Bool(s.properties.Vendor_ramdisk_available) || s.ModuleBase.InstallInVendorRamdisk()
+}
+
 func (s *ShBinary) RecoveryVariantNeeded(ctx android.BaseModuleContext) bool {
 	return proptools.Bool(s.properties.Recovery_available) || s.ModuleBase.InstallInRecovery()
 }
diff --git a/sysprop/sysprop_library.go b/sysprop/sysprop_library.go
index 480f9b7..edb8b30 100644
--- a/sysprop/sysprop_library.go
+++ b/sysprop/sysprop_library.go
@@ -404,13 +404,21 @@
 	// ctx's Platform or Specific functions represent where this sysprop_library installed.
 	installedInSystem := ctx.Platform() || ctx.SystemExtSpecific()
 	installedInVendorOrOdm := ctx.SocSpecific() || ctx.DeviceSpecific()
+	installedInProduct := ctx.ProductSpecific()
 	isOwnerPlatform := false
-	stub := "sysprop-library-stub-"
+	var stub string
+
+	if installedInVendorOrOdm {
+		stub = "sysprop-library-stub-vendor"
+	} else if installedInProduct {
+		stub = "sysprop-library-stub-product"
+	} else {
+		stub = "sysprop-library-stub-platform"
+	}
 
 	switch m.Owner() {
 	case "Platform":
 		// Every partition can access platform-defined properties
-		stub += "platform"
 		isOwnerPlatform = true
 	case "Vendor":
 		// System can't access vendor's properties
@@ -418,14 +426,12 @@
 			ctx.ModuleErrorf("None of soc_specific, device_specific, product_specific is true. " +
 				"System can't access sysprop_library owned by Vendor")
 		}
-		stub += "vendor"
 	case "Odm":
 		// Only vendor can access Odm-defined properties
 		if !installedInVendorOrOdm {
 			ctx.ModuleErrorf("Neither soc_speicifc nor device_specific is true. " +
 				"Odm-defined properties should be accessed only in Vendor or Odm")
 		}
-		stub += "vendor"
 	default:
 		ctx.PropertyErrorf("property_owner",
 			"Unknown value %s: must be one of Platform, Vendor or Odm", m.Owner())
diff --git a/sysprop/sysprop_test.go b/sysprop/sysprop_test.go
index 711129c..7a79a1b 100644
--- a/sysprop/sysprop_test.go
+++ b/sysprop/sysprop_test.go
@@ -103,6 +103,8 @@
 		"api/sysprop-platform-on-product-latest.txt":  nil,
 		"api/sysprop-vendor-current.txt":              nil,
 		"api/sysprop-vendor-latest.txt":               nil,
+		"api/sysprop-vendor-on-product-current.txt":   nil,
+		"api/sysprop-vendor-on-product-latest.txt":    nil,
 		"api/sysprop-odm-current.txt":                 nil,
 		"api/sysprop-odm-latest.txt":                  nil,
 		"framework/aidl/a.aidl":                       nil,
@@ -182,8 +184,15 @@
 			srcs: ["com/android/VendorProperties.sysprop"],
 			api_packages: ["com.android"],
 			property_owner: "Vendor",
+			vendor: true,
+		}
+
+		sysprop_library {
+			name: "sysprop-vendor-on-product",
+			srcs: ["com/android/VendorProperties.sysprop"],
+			api_packages: ["com.android"],
+			property_owner: "Vendor",
 			product_specific: true,
-			vendor_available: true,
 		}
 
 		sysprop_library {
@@ -213,7 +222,7 @@
 			srcs: ["c.java"],
 			sdk_version: "system_current",
 			product_specific: true,
-			libs: ["sysprop-platform", "sysprop-vendor"],
+			libs: ["sysprop-platform", "sysprop-vendor-on-product"],
 		}
 
 		java_library {
@@ -240,7 +249,7 @@
 			name: "cc-client-product",
 			srcs: ["d.cpp"],
 			product_specific: true,
-			static_libs: ["sysprop-platform-on-product", "sysprop-vendor"],
+			static_libs: ["sysprop-platform-on-product", "sysprop-vendor-on-product"],
 		}
 
 		cc_library {
@@ -268,6 +277,7 @@
 			system_shared_libs: [],
 			recovery_available: true,
 			host_supported: true,
+			llndk_stubs: "liblog.llndk",
 		}
 
 		cc_binary_host {
@@ -276,7 +286,7 @@
 		}
 
 		llndk_library {
-			name: "liblog",
+			name: "liblog.llndk",
 			symbol_file: "",
 		}
 
@@ -290,6 +300,12 @@
 			soc_specific: true,
 			sdk_version: "core_current",
 		}
+
+		java_library {
+			name: "sysprop-library-stub-product",
+			product_specific: true,
+			sdk_version: "core_current",
+		}
 		`)
 
 	// Check for generated cc_library
@@ -317,13 +333,14 @@
 				expectedApexAvailableOnLibrary, library.ApexProperties.Apex_available)
 		}
 
-		// core variant of vendor-owned sysprop_library is for product
-		ctx.ModuleForTests("libsysprop-vendor", variant)
+		// product variant of vendor-owned sysprop_library
+		ctx.ModuleForTests("libsysprop-vendor-on-product", variant)
 	}
 
 	ctx.ModuleForTests("sysprop-platform", "android_common")
 	ctx.ModuleForTests("sysprop-platform_public", "android_common")
 	ctx.ModuleForTests("sysprop-vendor", "android_common")
+	ctx.ModuleForTests("sysprop-vendor-on-product", "android_common")
 
 	// Check for exported includes
 	coreVariant := "android_arm64_armv8-a_static"
@@ -336,7 +353,7 @@
 	platformOnProductPath := "libsysprop-platform-on-product/android_arm64_armv8-a_static/gen/sysprop/public/include"
 
 	vendorInternalPath := "libsysprop-vendor/android_vendor.VER_arm64_armv8-a_static/gen/sysprop/include"
-	vendorPublicPath := "libsysprop-vendor/android_arm64_armv8-a_static/gen/sysprop/public/include"
+	vendorPublicPath := "libsysprop-vendor-on-product/android_arm64_armv8-a_static/gen/sysprop/public/include"
 
 	platformClient := ctx.ModuleForTests("cc-client-platform", coreVariant)
 	platformFlags := platformClient.Rule("cc").Args["cFlags"]
diff --git a/tradefed/suite_harness/tradefed_binary.go b/tradefed/suite_harness/tradefed_binary.go
index 1bd4f93..a421d8b 100644
--- a/tradefed/suite_harness/tradefed_binary.go
+++ b/tradefed/suite_harness/tradefed_binary.go
@@ -80,7 +80,6 @@
 			"tradefed",
 			"tradefed-test-framework",
 			"loganalysis",
-			"hosttestlib",
 			"compatibility-host-util",
 		}
 
diff --git a/ui/build/context.go b/ui/build/context.go
index 3945ce0..43e1e0f 100644
--- a/ui/build/context.go
+++ b/ui/build/context.go
@@ -48,7 +48,7 @@
 		c.Tracer.Begin(desc, c.Thread)
 	}
 	if c.Metrics != nil {
-		c.Metrics.TimeTracer.Begin(name, desc, c.Thread)
+		c.Metrics.EventTracer.Begin(name, desc, c.Thread)
 	}
 }
 
@@ -58,7 +58,7 @@
 		c.Tracer.End(c.Thread)
 	}
 	if c.Metrics != nil {
-		c.Metrics.SetTimeMetrics(c.Metrics.TimeTracer.End(c.Thread))
+		c.Metrics.SetTimeMetrics(c.Metrics.EventTracer.End(c.Thread))
 	}
 }
 
diff --git a/ui/build/kati.go b/ui/build/kati.go
index f6d3a57..f6c0f52 100644
--- a/ui/build/kati.go
+++ b/ui/build/kati.go
@@ -68,6 +68,7 @@
 		"--ninja_suffix=" + config.KatiSuffix() + extraSuffix,
 		"--no_ninja_prelude",
 		"--use_ninja_phony_output",
+		"--use_ninja_symlink_outputs",
 		"--regen",
 		"--ignore_optional_include=" + filepath.Join(config.OutDir(), "%.P"),
 		"--detect_android_echo",
diff --git a/ui/metrics/Android.bp b/ui/metrics/Android.bp
index 8188a69..95c8f5c 100644
--- a/ui/metrics/Android.bp
+++ b/ui/metrics/Android.bp
@@ -23,10 +23,10 @@
     ],
     srcs: [
         "metrics.go",
-        "time.go",
+        "event.go",
     ],
     testSrcs: [
-        "time_test.go",
+        "event_test.go",
     ],
 }
 
diff --git a/ui/metrics/time.go b/ui/metrics/event.go
similarity index 80%
rename from ui/metrics/time.go
rename to ui/metrics/event.go
index 4016563..5a62847 100644
--- a/ui/metrics/time.go
+++ b/ui/metrics/event.go
@@ -25,7 +25,7 @@
 // for testing purpose only
 var _now = now
 
-type timeEvent struct {
+type event struct {
 	desc string
 	name string
 
@@ -33,26 +33,26 @@
 	start time.Time
 }
 
-type TimeTracer interface {
+type EventTracer interface {
 	Begin(name, desc string, thread tracer.Thread)
 	End(thread tracer.Thread) soong_metrics_proto.PerfInfo
 }
 
-type timeTracerImpl struct {
-	activeEvents []timeEvent
+type eventTracerImpl struct {
+	activeEvents []event
 }
 
-var _ TimeTracer = &timeTracerImpl{}
+var _ EventTracer = &eventTracerImpl{}
 
 func now() time.Time {
 	return time.Now()
 }
 
-func (t *timeTracerImpl) Begin(name, desc string, _ tracer.Thread) {
-	t.activeEvents = append(t.activeEvents, timeEvent{name: name, desc: desc, start: _now()})
+func (t *eventTracerImpl) Begin(name, desc string, _ tracer.Thread) {
+	t.activeEvents = append(t.activeEvents, event{name: name, desc: desc, start: _now()})
 }
 
-func (t *timeTracerImpl) End(tracer.Thread) soong_metrics_proto.PerfInfo {
+func (t *eventTracerImpl) End(tracer.Thread) soong_metrics_proto.PerfInfo {
 	if len(t.activeEvents) < 1 {
 		panic("Internal error: No pending events for endAt to end!")
 	}
diff --git a/ui/metrics/time_test.go b/ui/metrics/event_test.go
similarity index 88%
rename from ui/metrics/time_test.go
rename to ui/metrics/event_test.go
index d73080a..6fc0b50 100644
--- a/ui/metrics/time_test.go
+++ b/ui/metrics/event_test.go
@@ -28,14 +28,14 @@
 	_now = func() time.Time { return startTime.Add(dur) }
 	defer func() { _now = initialNow }()
 
-	timeTracer := &timeTracerImpl{}
-	timeTracer.activeEvents = append(timeTracer.activeEvents, timeEvent{
+	eventTracer := &eventTracerImpl{}
+	eventTracer.activeEvents = append(eventTracer.activeEvents, event{
 		desc:  "test",
 		name:  "test",
 		start: startTime,
 	})
 
-	perf := timeTracer.End(tracer.Thread(0))
+	perf := eventTracer.End(tracer.Thread(0))
 	if perf.GetRealTime() != uint64(dur.Nanoseconds()) {
 		t.Errorf("got %d, want %d nanoseconds for event duration", perf.GetRealTime(), dur.Nanoseconds())
 	}
diff --git a/ui/metrics/metrics.go b/ui/metrics/metrics.go
index 35d1976..7a3726b 100644
--- a/ui/metrics/metrics.go
+++ b/ui/metrics/metrics.go
@@ -36,14 +36,14 @@
 )
 
 type Metrics struct {
-	metrics    soong_metrics_proto.MetricsBase
-	TimeTracer TimeTracer
+	metrics     soong_metrics_proto.MetricsBase
+	EventTracer EventTracer
 }
 
 func New() (metrics *Metrics) {
 	m := &Metrics{
-		metrics:    soong_metrics_proto.MetricsBase{},
-		TimeTracer: &timeTracerImpl{},
+		metrics:     soong_metrics_proto.MetricsBase{},
+		EventTracer: &eventTracerImpl{},
 	}
 	return m
 }
diff --git a/ui/metrics/metrics_proto/metrics.pb.go b/ui/metrics/metrics_proto/metrics.pb.go
index e824f6b..b8c5775 100644
--- a/ui/metrics/metrics_proto/metrics.pb.go
+++ b/ui/metrics/metrics_proto/metrics.pb.go
@@ -152,7 +152,7 @@
 }
 
 func (ModuleTypeInfo_BuildSystem) EnumDescriptor() ([]byte, []int) {
-	return fileDescriptor_6039342a2ba47b72, []int{4, 0}
+	return fileDescriptor_6039342a2ba47b72, []int{5, 0}
 }
 
 type MetricsBase struct {
@@ -529,11 +529,13 @@
 	// The real running time.
 	// The number of nanoseconds elapsed since start_time.
 	RealTime *uint64 `protobuf:"varint,4,opt,name=real_time,json=realTime" json:"real_time,omitempty"`
-	// The number of MB for memory use.
-	MemoryUse            *uint64  `protobuf:"varint,5,opt,name=memory_use,json=memoryUse" json:"memory_use,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
+	// The number of MB for memory use (deprecated as it is too generic).
+	MemoryUse *uint64 `protobuf:"varint,5,opt,name=memory_use,json=memoryUse" json:"memory_use,omitempty"` // Deprecated: Do not use.
+	// The resource information of each executed process.
+	ProcessesResourceInfo []*ProcessResourceInfo `protobuf:"bytes,6,rep,name=processes_resource_info,json=processesResourceInfo" json:"processes_resource_info,omitempty"`
+	XXX_NoUnkeyedLiteral  struct{}               `json:"-"`
+	XXX_unrecognized      []byte                 `json:"-"`
+	XXX_sizecache         int32                  `json:"-"`
 }
 
 func (m *PerfInfo) Reset()         { *m = PerfInfo{} }
@@ -589,6 +591,7 @@
 	return 0
 }
 
+// Deprecated: Do not use.
 func (m *PerfInfo) GetMemoryUse() uint64 {
 	if m != nil && m.MemoryUse != nil {
 		return *m.MemoryUse
@@ -596,6 +599,134 @@
 	return 0
 }
 
+func (m *PerfInfo) GetProcessesResourceInfo() []*ProcessResourceInfo {
+	if m != nil {
+		return m.ProcessesResourceInfo
+	}
+	return nil
+}
+
+type ProcessResourceInfo struct {
+	// The name of the process for identification.
+	Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	// The amount of time spent executing in user space in microseconds.
+	UserTimeMicros *uint64 `protobuf:"varint,2,opt,name=user_time_micros,json=userTimeMicros" json:"user_time_micros,omitempty"`
+	// The amount of time spent executing in kernel mode in microseconds.
+	SystemTimeMicros *uint64 `protobuf:"varint,3,opt,name=system_time_micros,json=systemTimeMicros" json:"system_time_micros,omitempty"`
+	// The maximum resident set size memory used in kilobytes.
+	MaxRssKb *uint64 `protobuf:"varint,4,opt,name=max_rss_kb,json=maxRssKb" json:"max_rss_kb,omitempty"`
+	// The number of minor page faults serviced without any I/O activity.
+	MinorPageFaults *uint64 `protobuf:"varint,5,opt,name=minor_page_faults,json=minorPageFaults" json:"minor_page_faults,omitempty"`
+	// The number of major page faults serviced that required I/O activity.
+	MajorPageFaults *uint64 `protobuf:"varint,6,opt,name=major_page_faults,json=majorPageFaults" json:"major_page_faults,omitempty"`
+	// Total IO input in kilobytes.
+	IoInputKb *uint64 `protobuf:"varint,7,opt,name=io_input_kb,json=ioInputKb" json:"io_input_kb,omitempty"`
+	// Total IO output in kilobytes.
+	IoOutputKb *uint64 `protobuf:"varint,8,opt,name=io_output_kb,json=ioOutputKb" json:"io_output_kb,omitempty"`
+	// The number of voluntary context switches
+	VoluntaryContextSwitches *uint64 `protobuf:"varint,9,opt,name=voluntary_context_switches,json=voluntaryContextSwitches" json:"voluntary_context_switches,omitempty"`
+	// The number of involuntary context switches
+	InvoluntaryContextSwitches *uint64  `protobuf:"varint,10,opt,name=involuntary_context_switches,json=involuntaryContextSwitches" json:"involuntary_context_switches,omitempty"`
+	XXX_NoUnkeyedLiteral       struct{} `json:"-"`
+	XXX_unrecognized           []byte   `json:"-"`
+	XXX_sizecache              int32    `json:"-"`
+}
+
+func (m *ProcessResourceInfo) Reset()         { *m = ProcessResourceInfo{} }
+func (m *ProcessResourceInfo) String() string { return proto.CompactTextString(m) }
+func (*ProcessResourceInfo) ProtoMessage()    {}
+func (*ProcessResourceInfo) Descriptor() ([]byte, []int) {
+	return fileDescriptor_6039342a2ba47b72, []int{4}
+}
+
+func (m *ProcessResourceInfo) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ProcessResourceInfo.Unmarshal(m, b)
+}
+func (m *ProcessResourceInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ProcessResourceInfo.Marshal(b, m, deterministic)
+}
+func (m *ProcessResourceInfo) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ProcessResourceInfo.Merge(m, src)
+}
+func (m *ProcessResourceInfo) XXX_Size() int {
+	return xxx_messageInfo_ProcessResourceInfo.Size(m)
+}
+func (m *ProcessResourceInfo) XXX_DiscardUnknown() {
+	xxx_messageInfo_ProcessResourceInfo.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ProcessResourceInfo proto.InternalMessageInfo
+
+func (m *ProcessResourceInfo) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func (m *ProcessResourceInfo) GetUserTimeMicros() uint64 {
+	if m != nil && m.UserTimeMicros != nil {
+		return *m.UserTimeMicros
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetSystemTimeMicros() uint64 {
+	if m != nil && m.SystemTimeMicros != nil {
+		return *m.SystemTimeMicros
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetMaxRssKb() uint64 {
+	if m != nil && m.MaxRssKb != nil {
+		return *m.MaxRssKb
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetMinorPageFaults() uint64 {
+	if m != nil && m.MinorPageFaults != nil {
+		return *m.MinorPageFaults
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetMajorPageFaults() uint64 {
+	if m != nil && m.MajorPageFaults != nil {
+		return *m.MajorPageFaults
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetIoInputKb() uint64 {
+	if m != nil && m.IoInputKb != nil {
+		return *m.IoInputKb
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetIoOutputKb() uint64 {
+	if m != nil && m.IoOutputKb != nil {
+		return *m.IoOutputKb
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetVoluntaryContextSwitches() uint64 {
+	if m != nil && m.VoluntaryContextSwitches != nil {
+		return *m.VoluntaryContextSwitches
+	}
+	return 0
+}
+
+func (m *ProcessResourceInfo) GetInvoluntaryContextSwitches() uint64 {
+	if m != nil && m.InvoluntaryContextSwitches != nil {
+		return *m.InvoluntaryContextSwitches
+	}
+	return 0
+}
+
 type ModuleTypeInfo struct {
 	// The build system, eg. Soong or Make.
 	BuildSystem *ModuleTypeInfo_BuildSystem `protobuf:"varint,1,opt,name=build_system,json=buildSystem,enum=soong_build_metrics.ModuleTypeInfo_BuildSystem,def=0" json:"build_system,omitempty"`
@@ -612,7 +743,7 @@
 func (m *ModuleTypeInfo) String() string { return proto.CompactTextString(m) }
 func (*ModuleTypeInfo) ProtoMessage()    {}
 func (*ModuleTypeInfo) Descriptor() ([]byte, []int) {
-	return fileDescriptor_6039342a2ba47b72, []int{4}
+	return fileDescriptor_6039342a2ba47b72, []int{5}
 }
 
 func (m *ModuleTypeInfo) XXX_Unmarshal(b []byte) error {
@@ -670,7 +801,7 @@
 func (m *CriticalUserJourneyMetrics) String() string { return proto.CompactTextString(m) }
 func (*CriticalUserJourneyMetrics) ProtoMessage()    {}
 func (*CriticalUserJourneyMetrics) Descriptor() ([]byte, []int) {
-	return fileDescriptor_6039342a2ba47b72, []int{5}
+	return fileDescriptor_6039342a2ba47b72, []int{6}
 }
 
 func (m *CriticalUserJourneyMetrics) XXX_Unmarshal(b []byte) error {
@@ -717,7 +848,7 @@
 func (m *CriticalUserJourneysMetrics) String() string { return proto.CompactTextString(m) }
 func (*CriticalUserJourneysMetrics) ProtoMessage()    {}
 func (*CriticalUserJourneysMetrics) Descriptor() ([]byte, []int) {
-	return fileDescriptor_6039342a2ba47b72, []int{6}
+	return fileDescriptor_6039342a2ba47b72, []int{7}
 }
 
 func (m *CriticalUserJourneysMetrics) XXX_Unmarshal(b []byte) error {
@@ -765,7 +896,7 @@
 func (m *SoongBuildMetrics) String() string { return proto.CompactTextString(m) }
 func (*SoongBuildMetrics) ProtoMessage()    {}
 func (*SoongBuildMetrics) Descriptor() ([]byte, []int) {
-	return fileDescriptor_6039342a2ba47b72, []int{7}
+	return fileDescriptor_6039342a2ba47b72, []int{8}
 }
 
 func (m *SoongBuildMetrics) XXX_Unmarshal(b []byte) error {
@@ -829,6 +960,7 @@
 	proto.RegisterType((*BuildConfig)(nil), "soong_build_metrics.BuildConfig")
 	proto.RegisterType((*SystemResourceInfo)(nil), "soong_build_metrics.SystemResourceInfo")
 	proto.RegisterType((*PerfInfo)(nil), "soong_build_metrics.PerfInfo")
+	proto.RegisterType((*ProcessResourceInfo)(nil), "soong_build_metrics.ProcessResourceInfo")
 	proto.RegisterType((*ModuleTypeInfo)(nil), "soong_build_metrics.ModuleTypeInfo")
 	proto.RegisterType((*CriticalUserJourneyMetrics)(nil), "soong_build_metrics.CriticalUserJourneyMetrics")
 	proto.RegisterType((*CriticalUserJourneysMetrics)(nil), "soong_build_metrics.CriticalUserJourneysMetrics")
@@ -840,76 +972,90 @@
 }
 
 var fileDescriptor_6039342a2ba47b72 = []byte{
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+	0x0c, 0x00, 0x00,
 }
diff --git a/ui/metrics/metrics_proto/metrics.proto b/ui/metrics/metrics_proto/metrics.proto
index 3586be0..44f8859 100644
--- a/ui/metrics/metrics_proto/metrics.proto
+++ b/ui/metrics/metrics_proto/metrics.proto
@@ -135,8 +135,43 @@
   // The number of nanoseconds elapsed since start_time.
   optional uint64 real_time = 4;
 
-  // The number of MB for memory use.
-  optional uint64 memory_use = 5;
+  // The number of MB for memory use (deprecated as it is too generic).
+  optional uint64 memory_use = 5 [deprecated=true];
+
+  // The resource information of each executed process.
+  repeated ProcessResourceInfo processes_resource_info = 6;
+}
+
+message ProcessResourceInfo {
+  // The name of the process for identification.
+  optional string name = 1;
+
+  // The amount of time spent executing in user space in microseconds.
+  optional uint64 user_time_micros = 2;
+
+  // The amount of time spent executing in kernel mode in microseconds.
+  optional uint64 system_time_micros = 3;
+
+  // The maximum resident set size memory used in kilobytes.
+  optional uint64 max_rss_kb = 4;
+
+  // The number of minor page faults serviced without any I/O activity.
+  optional uint64 minor_page_faults = 5;
+
+  // The number of major page faults serviced that required I/O activity.
+  optional uint64 major_page_faults = 6;
+
+  // Total IO input in kilobytes.
+  optional uint64 io_input_kb= 7;
+
+  // Total IO output in kilobytes.
+  optional uint64 io_output_kb = 8;
+
+  // The number of voluntary context switches
+  optional uint64 voluntary_context_switches = 9;
+
+  // The number of involuntary context switches
+  optional uint64 involuntary_context_switches = 10;
 }
 
 message ModuleTypeInfo {
diff --git a/ui/status/ninja.go b/ui/status/ninja.go
index a11774c..765679f 100644
--- a/ui/status/ninja.go
+++ b/ui/status/ninja.go
@@ -162,6 +162,17 @@
 					Action: started,
 					Output: msg.EdgeFinished.GetOutput(),
 					Error:  err,
+					Stats: ActionResultStats{
+						UserTime:                   msg.EdgeFinished.GetUserTime(),
+						SystemTime:                 msg.EdgeFinished.GetSystemTime(),
+						MaxRssKB:                   msg.EdgeFinished.GetMaxRssKb(),
+						MinorPageFaults:            msg.EdgeFinished.GetMinorPageFaults(),
+						MajorPageFaults:            msg.EdgeFinished.GetMajorPageFaults(),
+						IOInputKB:                  msg.EdgeFinished.GetIoInputKb(),
+						IOOutputKB:                 msg.EdgeFinished.GetIoOutputKb(),
+						VoluntaryContextSwitches:   msg.EdgeFinished.GetVoluntaryContextSwitches(),
+						InvoluntaryContextSwitches: msg.EdgeFinished.GetInvoluntaryContextSwitches(),
+					},
 				})
 			}
 		}
diff --git a/ui/status/ninja_frontend/frontend.pb.go b/ui/status/ninja_frontend/frontend.pb.go
index 7ba9de2..86e474b 100644
--- a/ui/status/ninja_frontend/frontend.pb.go
+++ b/ui/status/ninja_frontend/frontend.pb.go
@@ -371,10 +371,24 @@
 	// Number of milliseconds spent executing in user mode
 	UserTime *uint32 `protobuf:"varint,5,opt,name=user_time,json=userTime" json:"user_time,omitempty"`
 	// Number of milliseconds spent executing in kernel mode
-	SystemTime           *uint32  `protobuf:"varint,6,opt,name=system_time,json=systemTime" json:"system_time,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
+	SystemTime *uint32 `protobuf:"varint,6,opt,name=system_time,json=systemTime" json:"system_time,omitempty"`
+	// Max resident set size in kB
+	MaxRssKb *uint64 `protobuf:"varint,7,opt,name=max_rss_kb,json=maxRssKb" json:"max_rss_kb,omitempty"`
+	// Minor page faults
+	MinorPageFaults *uint64 `protobuf:"varint,8,opt,name=minor_page_faults,json=minorPageFaults" json:"minor_page_faults,omitempty"`
+	// Major page faults
+	MajorPageFaults *uint64 `protobuf:"varint,9,opt,name=major_page_faults,json=majorPageFaults" json:"major_page_faults,omitempty"`
+	// IO input in kB
+	IoInputKb *uint64 `protobuf:"varint,10,opt,name=io_input_kb,json=ioInputKb" json:"io_input_kb,omitempty"`
+	// IO output in kB
+	IoOutputKb *uint64 `protobuf:"varint,11,opt,name=io_output_kb,json=ioOutputKb" json:"io_output_kb,omitempty"`
+	// Voluntary context switches
+	VoluntaryContextSwitches *uint64 `protobuf:"varint,12,opt,name=voluntary_context_switches,json=voluntaryContextSwitches" json:"voluntary_context_switches,omitempty"`
+	// Involuntary context switches
+	InvoluntaryContextSwitches *uint64  `protobuf:"varint,13,opt,name=involuntary_context_switches,json=involuntaryContextSwitches" json:"involuntary_context_switches,omitempty"`
+	XXX_NoUnkeyedLiteral       struct{} `json:"-"`
+	XXX_unrecognized           []byte   `json:"-"`
+	XXX_sizecache              int32    `json:"-"`
 }
 
 func (m *Status_EdgeFinished) Reset()         { *m = Status_EdgeFinished{} }
@@ -444,6 +458,55 @@
 	return 0
 }
 
+func (m *Status_EdgeFinished) GetMaxRssKb() uint64 {
+	if m != nil && m.MaxRssKb != nil {
+		return *m.MaxRssKb
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetMinorPageFaults() uint64 {
+	if m != nil && m.MinorPageFaults != nil {
+		return *m.MinorPageFaults
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetMajorPageFaults() uint64 {
+	if m != nil && m.MajorPageFaults != nil {
+		return *m.MajorPageFaults
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetIoInputKb() uint64 {
+	if m != nil && m.IoInputKb != nil {
+		return *m.IoInputKb
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetIoOutputKb() uint64 {
+	if m != nil && m.IoOutputKb != nil {
+		return *m.IoOutputKb
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetVoluntaryContextSwitches() uint64 {
+	if m != nil && m.VoluntaryContextSwitches != nil {
+		return *m.VoluntaryContextSwitches
+	}
+	return 0
+}
+
+func (m *Status_EdgeFinished) GetInvoluntaryContextSwitches() uint64 {
+	if m != nil && m.InvoluntaryContextSwitches != nil {
+		return *m.InvoluntaryContextSwitches
+	}
+	return 0
+}
+
 type Status_Message struct {
 	// Message priority level (DEBUG, INFO, WARNING, ERROR).
 	Level *Status_Message_Level `protobuf:"varint,1,opt,name=level,enum=ninja.Status_Message_Level,def=0" json:"level,omitempty"`
@@ -511,39 +574,48 @@
 }
 
 var fileDescriptor_eca3873955a29cfe = []byte{
-	// 539 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x6c, 0x54, 0xd1, 0x6e, 0xd3, 0x4a,
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-	0xcb, 0x99, 0x5d, 0x18, 0xc2, 0xc2, 0xd4, 0x39, 0xe8, 0xe6, 0x9b, 0xbd, 0x81, 0xd1, 0x7a, 0x9b,
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-	0x61, 0x3b, 0x40, 0x36, 0x85, 0x68, 0x93, 0x56, 0x69, 0x9e, 0x63, 0x9e, 0xa9, 0xc2, 0x35, 0xb4,
-	0x8f, 0x58, 0x0c, 0xc1, 0x0d, 0x56, 0xeb, 0x52, 0x21, 0xbd, 0xc7, 0x80, 0xd7, 0x30, 0xf9, 0x1f,
-	0x46, 0x3b, 0x51, 0x26, 0xbf, 0x3d, 0x88, 0x5a, 0xd1, 0xb0, 0x31, 0x74, 0x32, 0xe1, 0x34, 0x3b,
-	0x99, 0x60, 0x8f, 0x01, 0x28, 0xd6, 0x95, 0xce, 0x0a, 0xab, 0x36, 0xe2, 0x21, 0x9d, 0x5c, 0x64,
-	0x05, 0xb2, 0x47, 0xd0, 0xcf, 0xe4, 0x66, 0xab, 0x55, 0xdc, 0x9d, 0x76, 0x8f, 0x42, 0xee, 0x90,
-	0x71, 0x50, 0x6e, 0x35, 0x15, 0x7a, 0x54, 0xa8, 0x21, 0x63, 0xd0, 0x13, 0xa8, 0x2e, 0x29, 0xe5,
-	0x90, 0xd3, 0xb7, 0x61, 0x5f, 0x96, 0x45, 0x91, 0x4a, 0x41, 0x09, 0x86, 0xbc, 0x86, 0xb6, 0x22,
-	0x55, 0x99, 0x63, 0x1c, 0xd8, 0x9b, 0x38, 0x98, 0xfc, 0xf2, 0x60, 0xd8, 0x7e, 0x94, 0x3b, 0xce,
-	0xf7, 0x60, 0x80, 0x52, 0xb4, 0x7d, 0x07, 0x28, 0x45, 0xed, 0x5a, 0xd1, 0xdb, 0xd0, 0xb2, 0x3d,
-	0xe0, 0x0e, 0x99, 0x73, 0x6b, 0x93, 0x56, 0x28, 0xe4, 0x0e, 0xb1, 0x7d, 0x08, 0xb7, 0x0a, 0x2b,
-	0xab, 0xe5, 0x93, 0xd6, 0xc0, 0x1c, 0x90, 0xd8, 0x01, 0x44, 0xea, 0x87, 0xd2, 0x58, 0xd8, 0x72,
-	0xdf, 0xbe, 0x9f, 0x3d, 0x32, 0x84, 0xe4, 0xa7, 0x07, 0x81, 0xdb, 0x01, 0xf6, 0x02, 0xfc, 0x1c,
-	0x6f, 0x30, 0x27, 0x9f, 0xe3, 0x7f, 0xb7, 0xdc, 0xb1, 0x66, 0x1f, 0x0d, 0xe5, 0x55, 0xef, 0x74,
-	0x79, 0x7c, 0xc6, 0x2d, 0xdf, 0x04, 0x51, 0x2f, 0x59, 0xc7, 0x46, 0xe4, 0xe0, 0xe1, 0x73, 0xf0,
-	0x89, 0xcf, 0x06, 0x40, 0x1d, 0x93, 0xff, 0x58, 0x04, 0xc1, 0x97, 0xb7, 0x7c, 0x79, 0xba, 0x3c,
-	0x99, 0x78, 0x2c, 0x04, 0x7f, 0xc1, 0xf9, 0x19, 0x9f, 0x74, 0xcc, 0xe7, 0xbb, 0xc5, 0xfc, 0xf3,
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-	0x00, 0xff, 0xff, 0xaf, 0x93, 0x48, 0xcf, 0x2a, 0x04, 0x00, 0x00,
+	// 678 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x7c, 0x94, 0xff, 0x4e, 0xd4, 0x40,
+	0x10, 0xc7, 0xbd, 0xdf, 0xd7, 0xe9, 0xdd, 0x71, 0x6c, 0xa2, 0x29, 0x05, 0xe5, 0xc2, 0x5f, 0xc4,
+	0xc4, 0x33, 0x31, 0x26, 0x46, 0x43, 0xa2, 0x9e, 0x02, 0x22, 0x0a, 0x66, 0xc1, 0x98, 0xf8, 0x4f,
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+	0xc2, 0xe0, 0x24, 0x93, 0xa9, 0xe6, 0x69, 0x34, 0x9e, 0x65, 0x52, 0x4b, 0xd2, 0x4a, 0x45, 0x7a,
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+	0xf7, 0xd0, 0x44, 0x85, 0x95, 0x45, 0x05, 0xd3, 0x6f, 0xd9, 0x82, 0xcb, 0xaf, 0x0d, 0x73, 0x04,
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+	0x4e, 0xc2, 0x95, 0x62, 0xa7, 0xdc, 0x6b, 0x63, 0xea, 0xfd, 0xc5, 0xd4, 0xcf, 0x36, 0x48, 0x4b,
+	0xca, 0x7f, 0x02, 0x70, 0x3d, 0x4e, 0xb2, 0x7e, 0x7b, 0xfa, 0xfd, 0xea, 0x8c, 0xfd, 0x8f, 0xd0,
+	0xab, 0x0e, 0x90, 0x8c, 0xc0, 0x9d, 0xb1, 0x8c, 0xc5, 0x31, 0x8f, 0x85, 0x4a, 0x8a, 0x84, 0xaa,
+	0x8b, 0x78, 0xd0, 0xb9, 0xe0, 0x59, 0x28, 0x15, 0xc7, 0x7d, 0x74, 0x69, 0x69, 0xfa, 0x4b, 0xd0,
+	0x5f, 0x18, 0xa5, 0xff, 0xa7, 0x06, 0x6e, 0x65, 0x34, 0x64, 0x00, 0x75, 0x11, 0x15, 0x9a, 0x75,
+	0x11, 0x91, 0x87, 0x00, 0x38, 0xd6, 0x40, 0x8b, 0xc4, 0xaa, 0xf5, 0xa9, 0x83, 0x9e, 0x63, 0x91,
+	0x70, 0xf2, 0x00, 0xda, 0x22, 0x9d, 0xe5, 0x5a, 0x79, 0x8d, 0x51, 0x63, 0xd3, 0xa1, 0x85, 0x65,
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+	0xb6, 0xc0, 0xbf, 0x90, 0x71, 0x9e, 0x6a, 0x96, 0x5d, 0x05, 0x53, 0xf3, 0x86, 0x5c, 0xea, 0x40,
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+	0x1a, 0x74, 0x8a, 0x7f, 0x87, 0xbc, 0x80, 0x56, 0xcc, 0x2f, 0x78, 0x8c, 0xfb, 0x1d, 0xdc, 0x7c,
+	0x1d, 0x0a, 0x6a, 0xfc, 0xc9, 0x20, 0xaf, 0x9a, 0x7b, 0x07, 0x3b, 0x87, 0xd4, 0xf2, 0xe6, 0x02,
+	0x95, 0x3f, 0x67, 0xdd, 0x5e, 0xad, 0xc2, 0xdc, 0x78, 0x0e, 0x2d, 0xe4, 0x49, 0x17, 0x30, 0x63,
+	0x78, 0x8f, 0xb8, 0xd0, 0xf9, 0xf6, 0x96, 0x1e, 0xec, 0x1d, 0xec, 0x0e, 0x6b, 0xc4, 0x81, 0xd6,
+	0x36, 0xa5, 0x87, 0x74, 0x58, 0x37, 0x9f, 0xef, 0xb7, 0x27, 0x5f, 0x77, 0x87, 0x8d, 0x09, 0xf9,
+	0xd0, 0xf8, 0x3e, 0xc0, 0xe2, 0x41, 0xf9, 0xae, 0xfe, 0x0b, 0x00, 0x00, 0xff, 0xff, 0x2f, 0x7a,
+	0x33, 0x13, 0x62, 0x05, 0x00, 0x00,
 }
diff --git a/ui/status/ninja_frontend/frontend.proto b/ui/status/ninja_frontend/frontend.proto
index baa0046..e5e5d9f 100644
--- a/ui/status/ninja_frontend/frontend.proto
+++ b/ui/status/ninja_frontend/frontend.proto
@@ -65,6 +65,20 @@
     optional uint32 user_time = 5;
     // Number of milliseconds spent executing in kernel mode
     optional uint32 system_time = 6;
+    // Max resident set size in kB
+    optional uint64 max_rss_kb = 7;
+    // Minor page faults
+    optional uint64 minor_page_faults = 8;
+    // Major page faults
+    optional uint64 major_page_faults = 9;
+    // IO input in kB
+    optional uint64 io_input_kb = 10;
+    // IO output in kB
+    optional uint64 io_output_kb = 11;
+    // Voluntary context switches
+    optional uint64 voluntary_context_switches = 12;
+    // Involuntary context switches
+    optional uint64 involuntary_context_switches = 13;
   }
 
   message Message {
diff --git a/ui/status/status.go b/ui/status/status.go
index df33baa..a5b4a28 100644
--- a/ui/status/status.go
+++ b/ui/status/status.go
@@ -54,6 +54,37 @@
 	// Error is nil if the Action succeeded, or set to an error if it
 	// failed.
 	Error error
+
+	Stats ActionResultStats
+}
+
+type ActionResultStats struct {
+	// Number of milliseconds spent executing in user mode
+	UserTime uint32
+
+	// Number of milliseconds spent executing in kernel mode
+	SystemTime uint32
+
+	// Max resident set size in kB
+	MaxRssKB uint64
+
+	// Minor page faults
+	MinorPageFaults uint64
+
+	// Major page faults
+	MajorPageFaults uint64
+
+	// IO input in kB
+	IOInputKB uint64
+
+	// IO output in kB
+	IOOutputKB uint64
+
+	// Voluntary context switches
+	VoluntaryContextSwitches uint64
+
+	// Involuntary context switches
+	InvoluntaryContextSwitches uint64
 }
 
 // Counts describes the number of actions in each state
diff --git a/ui/tracer/status.go b/ui/tracer/status.go
index c831255..a8b4e62 100644
--- a/ui/tracer/status.go
+++ b/ui/tracer/status.go
@@ -80,9 +80,32 @@
 		Dur:   uint64(time.Since(start.start).Nanoseconds()) / 1000,
 		Pid:   1,
 		Tid:   uint64(start.cpu),
+		Arg: &statsArg{
+			UserTime:                   result.Stats.UserTime,
+			SystemTime:                 result.Stats.SystemTime,
+			MaxRssKB:                   result.Stats.MaxRssKB,
+			MinorPageFaults:            result.Stats.MinorPageFaults,
+			MajorPageFaults:            result.Stats.MajorPageFaults,
+			IOInputKB:                  result.Stats.IOInputKB,
+			IOOutputKB:                 result.Stats.IOOutputKB,
+			VoluntaryContextSwitches:   result.Stats.VoluntaryContextSwitches,
+			InvoluntaryContextSwitches: result.Stats.InvoluntaryContextSwitches,
+		},
 	})
 }
 
+type statsArg struct {
+	UserTime                   uint32 `json:"user_time"`
+	SystemTime                 uint32 `json:"system_time_ms"`
+	MaxRssKB                   uint64 `json:"max_rss_kb"`
+	MinorPageFaults            uint64 `json:"minor_page_faults"`
+	MajorPageFaults            uint64 `json:"major_page_faults"`
+	IOInputKB                  uint64 `json:"io_input_kb"`
+	IOOutputKB                 uint64 `json:"io_output_kb"`
+	VoluntaryContextSwitches   uint64 `json:"voluntary_context_switches"`
+	InvoluntaryContextSwitches uint64 `json:"involuntary_context_switches"`
+}
+
 func (s *statusOutput) Flush()                                        {}
 func (s *statusOutput) Message(level status.MsgLevel, message string) {}