Merge "metrics: count symlink/mkdir in symlink forest"
diff --git a/android/allowlists/allowlists.go b/android/allowlists/allowlists.go
index 87554a2..fb56ee1 100644
--- a/android/allowlists/allowlists.go
+++ b/android/allowlists/allowlists.go
@@ -669,6 +669,10 @@
 		// kotlin srcs in java libs
 		"CtsPkgInstallerConstants",
 		"kotlinx_atomicfu",
+
+		// kotlin srcs in java binary
+		"AnalyzerKt",
+		"trebuchet-core",
 	}
 
 	Bp2buildModuleTypeAlwaysConvertList = []string{
@@ -1318,8 +1322,6 @@
 		"libc_musl_sysroot",
 	}
 
-	Bp2buildCcLibraryStaticOnlyList = []string{}
-
 	MixedBuildsDisabledList = []string{
 		"libruy_static", "libtflite_kernel_utils", // TODO(b/237315968); Depend on prebuilt stl, not from source
 
diff --git a/android/bazel.go b/android/bazel.go
index 3731dfe..10e9251 100644
--- a/android/bazel.go
+++ b/android/bazel.go
@@ -66,8 +66,8 @@
 	//
 	// This is a bool pointer to support tristates: true, false, not set.
 	//
-	// To opt-in a module, set bazel_module: { bp2build_available: true }
-	// To opt-out a module, set bazel_module: { bp2build_available: false }
+	// To opt in a module, set bazel_module: { bp2build_available: true }
+	// To opt out a module, set bazel_module: { bp2build_available: false }
 	// To defer the default setting for the directory, do not set the value.
 	Bp2build_available *bool
 
@@ -126,7 +126,7 @@
 	// one with the single member called Soong_config_variables, which itself is
 	// a struct containing fields for each supported feature in that namespace.
 	//
-	// The reason for using an slice of interface{} is to support defaults
+	// The reason for using a slice of interface{} is to support defaults
 	// propagation of the struct pointers.
 	namespacedVariableProps() namespacedVariableProperties
 	setNamespacedVariableProps(props namespacedVariableProperties)
@@ -237,16 +237,6 @@
 
 	// Per-module denylist to always opt modules out of bp2build conversion.
 	moduleDoNotConvert map[string]bool
-
-	// Per-module denylist of cc_library modules to only generate the static
-	// variant if their shared variant isn't ready or buildable by Bazel.
-	ccLibraryStaticOnly map[string]bool
-}
-
-// GenerateCcLibraryStaticOnly returns whether a cc_library module should only
-// generate a static version of itself based on the current global configuration.
-func (a Bp2BuildConversionAllowlist) GenerateCcLibraryStaticOnly(moduleName string) bool {
-	return a.ccLibraryStaticOnly[moduleName]
 }
 
 // NewBp2BuildAllowlist creates a new, empty Bp2BuildConversionAllowlist
@@ -258,7 +248,6 @@
 		map[string]bool{},
 		map[string]bool{},
 		map[string]bool{},
-		map[string]bool{},
 	}
 }
 
@@ -322,18 +311,6 @@
 	return a
 }
 
-// SetCcLibraryStaticOnlyList copies the entries from ccLibraryStaticOnly into the allowlist
-func (a Bp2BuildConversionAllowlist) SetCcLibraryStaticOnlyList(ccLibraryStaticOnly []string) Bp2BuildConversionAllowlist {
-	if a.ccLibraryStaticOnly == nil {
-		a.ccLibraryStaticOnly = map[string]bool{}
-	}
-	for _, m := range ccLibraryStaticOnly {
-		a.ccLibraryStaticOnly[m] = true
-	}
-
-	return a
-}
-
 // ShouldKeepExistingBuildFileForDir returns whether an existing BUILD file should be
 // added to the build symlink forest based on the current global configuration.
 func (a Bp2BuildConversionAllowlist) ShouldKeepExistingBuildFileForDir(dir string) bool {
@@ -365,8 +342,7 @@
 			SetKeepExistingBuildFile(allowlists.Bp2buildKeepExistingBuildFile).
 			SetModuleAlwaysConvertList(allowlists.Bp2buildModuleAlwaysConvertList).
 			SetModuleTypeAlwaysConvertList(allowlists.Bp2buildModuleTypeAlwaysConvertList).
-			SetModuleDoNotConvertList(allowlists.Bp2buildModuleDoNotConvertList).
-			SetCcLibraryStaticOnlyList(allowlists.Bp2buildCcLibraryStaticOnlyList)
+			SetModuleDoNotConvertList(allowlists.Bp2buildModuleDoNotConvertList)
 	}).(Bp2BuildConversionAllowlist)
 }
 
@@ -375,30 +351,16 @@
 // method will also log whether this module is mixed build enabled for
 // metrics reporting.
 func MixedBuildsEnabled(ctx BaseModuleContext) bool {
-	mixedBuildEnabled := mixedBuildPossible(ctx)
+	module := ctx.Module()
+	mixedBuildEnabled := ctx.Config().IsMixedBuildsEnabled() &&
+		ctx.Os() != Windows && // Windows toolchains are not currently supported.
+		module.Enabled() &&
+		convertedToBazel(ctx, module) &&
+		ctx.Config().BazelContext.IsModuleNameAllowed(module.Name())
 	ctx.Config().LogMixedBuild(ctx, mixedBuildEnabled)
 	return mixedBuildEnabled
 }
 
-// mixedBuildPossible returns true if a module is ready to be replaced by a
-// converted or handcrafted Bazel target.
-func mixedBuildPossible(ctx BaseModuleContext) bool {
-	if !ctx.Config().IsMixedBuildsEnabled() {
-		return false
-	}
-	if ctx.Os() == Windows {
-		// Windows toolchains are not currently supported.
-		return false
-	}
-	if !ctx.Module().Enabled() {
-		return false
-	}
-	if !convertedToBazel(ctx, ctx.Module()) {
-		return false
-	}
-	return ctx.Config().BazelContext.BazelAllowlisted(ctx.Module().Name())
-}
-
 // ConvertedToBazel returns whether this module has been converted (with bp2build or manually) to Bazel.
 func convertedToBazel(ctx BazelConversionContext, module blueprint.Module) bool {
 	b, ok := module.(Bazelable)
diff --git a/android/bazel_handler.go b/android/bazel_handler.go
index 40cc6a2..8d45041 100644
--- a/android/bazel_handler.go
+++ b/android/bazel_handler.go
@@ -152,7 +152,7 @@
 	// Note that this only implies "bazel mixed build" allowlisting. The caller
 	// should independently verify the module is eligible for Bazel handling
 	// (for example, that it is MixedBuildBuildable).
-	BazelAllowlisted(moduleName string) bool
+	IsModuleNameAllowed(moduleName string) bool
 
 	// Returns the bazel output base (the root directory for all bazel intermediate outputs).
 	OutputBase() string
@@ -181,7 +181,7 @@
 
 // A context object which tracks queued requests that need to be made to Bazel,
 // and their results after the requests have been made.
-type bazelContext struct {
+type mixedBuildBazelContext struct {
 	bazelRunner
 	paths        *bazelPaths
 	requests     map[cqueryKey]bool // cquery requests that have not yet been issued to Bazel
@@ -210,7 +210,7 @@
 	targetBuildVariant string
 }
 
-var _ BazelContext = &bazelContext{}
+var _ BazelContext = &mixedBuildBazelContext{}
 
 // A bazel context to use when Bazel is disabled.
 type noopBazelContext struct{}
@@ -261,7 +261,7 @@
 	panic("unimplemented")
 }
 
-func (m MockBazelContext) BazelAllowlisted(_ string) bool {
+func (m MockBazelContext) IsModuleNameAllowed(_ string) bool {
 	return true
 }
 
@@ -277,14 +277,14 @@
 
 var _ BazelContext = MockBazelContext{}
 
-func (bazelCtx *bazelContext) QueueBazelRequest(label string, requestType cqueryRequest, cfgKey configKey) {
+func (bazelCtx *mixedBuildBazelContext) QueueBazelRequest(label string, requestType cqueryRequest, cfgKey configKey) {
 	key := makeCqueryKey(label, requestType, cfgKey)
 	bazelCtx.requestMutex.Lock()
 	defer bazelCtx.requestMutex.Unlock()
 	bazelCtx.requests[key] = true
 }
 
-func (bazelCtx *bazelContext) GetOutputFiles(label string, cfgKey configKey) ([]string, error) {
+func (bazelCtx *mixedBuildBazelContext) GetOutputFiles(label string, cfgKey configKey) ([]string, error) {
 	key := makeCqueryKey(label, cquery.GetOutputFiles, cfgKey)
 	if rawString, ok := bazelCtx.results[key]; ok {
 		bazelOutput := strings.TrimSpace(rawString)
@@ -294,7 +294,7 @@
 	return nil, fmt.Errorf("no bazel response found for %v", key)
 }
 
-func (bazelCtx *bazelContext) GetCcInfo(label string, cfgKey configKey) (cquery.CcInfo, error) {
+func (bazelCtx *mixedBuildBazelContext) GetCcInfo(label string, cfgKey configKey) (cquery.CcInfo, error) {
 	key := makeCqueryKey(label, cquery.GetCcInfo, cfgKey)
 	if rawString, ok := bazelCtx.results[key]; ok {
 		bazelOutput := strings.TrimSpace(rawString)
@@ -303,7 +303,7 @@
 	return cquery.CcInfo{}, fmt.Errorf("no bazel response found for %v", key)
 }
 
-func (bazelCtx *bazelContext) GetPythonBinary(label string, cfgKey configKey) (string, error) {
+func (bazelCtx *mixedBuildBazelContext) GetPythonBinary(label string, cfgKey configKey) (string, error) {
 	key := makeCqueryKey(label, cquery.GetPythonBinary, cfgKey)
 	if rawString, ok := bazelCtx.results[key]; ok {
 		bazelOutput := strings.TrimSpace(rawString)
@@ -312,7 +312,7 @@
 	return "", fmt.Errorf("no bazel response found for %v", key)
 }
 
-func (bazelCtx *bazelContext) GetApexInfo(label string, cfgKey configKey) (cquery.ApexInfo, error) {
+func (bazelCtx *mixedBuildBazelContext) GetApexInfo(label string, cfgKey configKey) (cquery.ApexInfo, error) {
 	key := makeCqueryKey(label, cquery.GetApexInfo, cfgKey)
 	if rawString, ok := bazelCtx.results[key]; ok {
 		return cquery.GetApexInfo.ParseResult(strings.TrimSpace(rawString))
@@ -320,7 +320,7 @@
 	return cquery.ApexInfo{}, fmt.Errorf("no bazel response found for %v", key)
 }
 
-func (bazelCtx *bazelContext) GetCcUnstrippedInfo(label string, cfgKey configKey) (cquery.CcUnstrippedInfo, error) {
+func (bazelCtx *mixedBuildBazelContext) GetCcUnstrippedInfo(label string, cfgKey configKey) (cquery.CcUnstrippedInfo, error) {
 	key := makeCqueryKey(label, cquery.GetCcUnstrippedInfo, cfgKey)
 	if rawString, ok := bazelCtx.results[key]; ok {
 		return cquery.GetCcUnstrippedInfo.ParseResult(strings.TrimSpace(rawString))
@@ -361,7 +361,7 @@
 	return ""
 }
 
-func (n noopBazelContext) BazelAllowlisted(_ string) bool {
+func (n noopBazelContext) IsModuleNameAllowed(_ string) bool {
 	return false
 }
 
@@ -396,12 +396,6 @@
 			enabledModules[enabledAdHocModule] = true
 		}
 	case BazelDevMode:
-		// Don't use partially-converted cc_library targets in mixed builds,
-		// since mixed builds would generally rely on both static and shared
-		// variants of a cc_library.
-		for staticOnlyModule := range GetBp2BuildAllowList().ccLibraryStaticOnly {
-			disabledModules[staticOnlyModule] = true
-		}
 		addToStringSet(disabledModules, allowlists.MixedBuildsDisabledList)
 	default:
 		panic("Expected BazelProdMode, BazelStagingMode, or BazelDevMode")
@@ -475,7 +469,7 @@
 		targetProduct = c.DeviceProduct()
 	}
 
-	return &bazelContext{
+	return &mixedBuildBazelContext{
 		bazelRunner:           &builtinBazelRunner{},
 		paths:                 &paths,
 		requests:              make(map[cqueryKey]bool),
@@ -491,7 +485,7 @@
 	return p.metricsDir
 }
 
-func (context *bazelContext) BazelAllowlisted(moduleName string) bool {
+func (context *mixedBuildBazelContext) IsModuleNameAllowed(moduleName string) bool {
 	if context.bazelDisabledModules[moduleName] {
 		return false
 	}
@@ -618,7 +612,7 @@
 
 }
 
-func (context *bazelContext) mainBzlFileContents() []byte {
+func (context *mixedBuildBazelContext) mainBzlFileContents() []byte {
 	// TODO(cparsons): Define configuration transitions programmatically based
 	// on available archs.
 	contents := `
@@ -687,7 +681,7 @@
 	return []byte(productReplacer.Replace(contents))
 }
 
-func (context *bazelContext) mainBuildFileContents() []byte {
+func (context *mixedBuildBazelContext) mainBuildFileContents() []byte {
 	// TODO(cparsons): Map label to attribute programmatically; don't use hard-coded
 	// architecture mapping.
 	formatString := `
@@ -751,10 +745,10 @@
 
 // Returns the file contents of the buildroot.cquery file that should be used for the cquery
 // expression in order to obtain information about buildroot and its dependencies.
-// The contents of this file depend on the bazelContext's requests; requests are enumerated
+// The contents of this file depend on the mixedBuildBazelContext's requests; requests are enumerated
 // and grouped by their request type. The data retrieved for each label depends on its
 // request type.
-func (context *bazelContext) cqueryStarlarkFileContents() []byte {
+func (context *mixedBuildBazelContext) cqueryStarlarkFileContents() []byte {
 	requestTypeToCqueryIdEntries := map[cqueryRequest][]string{}
 	for val := range context.requests {
 		cqueryId := getCqueryId(val)
@@ -912,7 +906,7 @@
 
 // Issues commands to Bazel to receive results for all cquery requests
 // queued in the BazelContext.
-func (context *bazelContext) InvokeBazel(config Config, ctx *Context) error {
+func (context *mixedBuildBazelContext) InvokeBazel(config Config, ctx *Context) error {
 	if ctx != nil {
 		ctx.EventHandler.Begin("bazel")
 		defer ctx.EventHandler.End("bazel")
@@ -939,7 +933,7 @@
 	return nil
 }
 
-func (context *bazelContext) runCquery(ctx *Context) error {
+func (context *mixedBuildBazelContext) runCquery(ctx *Context) error {
 	if ctx != nil {
 		ctx.EventHandler.Begin("cquery")
 		defer ctx.EventHandler.End("cquery")
@@ -994,7 +988,7 @@
 	return nil
 }
 
-func (context *bazelContext) runAquery(config Config, ctx *Context) error {
+func (context *mixedBuildBazelContext) runAquery(config Config, ctx *Context) error {
 	if ctx != nil {
 		ctx.EventHandler.Begin("aquery")
 		defer ctx.EventHandler.End("aquery")
@@ -1032,7 +1026,7 @@
 	return err
 }
 
-func (context *bazelContext) generateBazelSymlinks(ctx *Context) error {
+func (context *mixedBuildBazelContext) generateBazelSymlinks(ctx *Context) error {
 	if ctx != nil {
 		ctx.EventHandler.Begin("symlinks")
 		defer ctx.EventHandler.End("symlinks")
@@ -1044,15 +1038,15 @@
 	return err
 }
 
-func (context *bazelContext) BuildStatementsToRegister() []bazel.BuildStatement {
+func (context *mixedBuildBazelContext) BuildStatementsToRegister() []bazel.BuildStatement {
 	return context.buildStatements
 }
 
-func (context *bazelContext) AqueryDepsets() []bazel.AqueryDepset {
+func (context *mixedBuildBazelContext) AqueryDepsets() []bazel.AqueryDepset {
 	return context.depsets
 }
 
-func (context *bazelContext) OutputBase() string {
+func (context *mixedBuildBazelContext) OutputBase() string {
 	return context.paths.outputBase
 }
 
diff --git a/android/bazel_handler_test.go b/android/bazel_handler_test.go
index 10bbf31..013e19c 100644
--- a/android/bazel_handler_test.go
+++ b/android/bazel_handler_test.go
@@ -189,7 +189,7 @@
 	return actual
 }
 
-func testBazelContext(t *testing.T, bazelCommandResults map[bazelCommand]string) (*bazelContext, string) {
+func testBazelContext(t *testing.T, bazelCommandResults map[bazelCommand]string) (*mixedBuildBazelContext, string) {
 	t.Helper()
 	p := bazelPaths{
 		soongOutDir:  t.TempDir(),
@@ -201,7 +201,7 @@
 		bazelCommandResults[aqueryCommand] = ""
 	}
 	runner := &mockBazelRunner{bazelCommandResults: bazelCommandResults}
-	return &bazelContext{
+	return &mixedBuildBazelContext{
 		bazelRunner: runner,
 		paths:       &p,
 		requests:    map[cqueryKey]bool{},
diff --git a/android/bazel_test.go b/android/bazel_test.go
index 7b38b6a..87b2c8f 100644
--- a/android/bazel_test.go
+++ b/android/bazel_test.go
@@ -417,11 +417,6 @@
 			t.Errorf("bp2build module do not convert of %s: expected: true, got: %v", k, allowlist.moduleDoNotConvert[k])
 		}
 	}
-	for _, k := range allowlists.Bp2buildCcLibraryStaticOnlyList {
-		if !allowlist.ccLibraryStaticOnly[k] {
-			t.Errorf("bp2build cc library static only of %s: expected: true, got: %v", k, allowlist.ccLibraryStaticOnly[k])
-		}
-	}
 }
 
 func TestShouldKeepExistingBuildFileForDir(t *testing.T) {
diff --git a/android/config.go b/android/config.go
index d5ed883..a8b0a40 100644
--- a/android/config.go
+++ b/android/config.go
@@ -583,32 +583,28 @@
 	c.mockBpList = blueprint.MockModuleListFile
 }
 
+// TODO(b/265062549): Add a field to our collected (and uploaded) metrics which
+// describes a reason that we fell back to non-mixed builds.
 // Returns true if "Bazel builds" is enabled. In this mode, part of build
 // analysis is handled by Bazel.
 func (c *config) IsMixedBuildsEnabled() bool {
 	globalMixedBuildsSupport := c.Once(OnceKey{"globalMixedBuildsSupport"}, func() interface{} {
 		if c.productVariables.DeviceArch != nil && *c.productVariables.DeviceArch == "riscv64" {
-			fmt.Fprintln(os.Stderr, "unsupported device arch 'riscv64' for Bazel: falling back to non-mixed build")
 			return false
 		}
 		if c.IsEnvTrue("GLOBAL_THINLTO") {
-			fmt.Fprintln(os.Stderr, "unsupported env var GLOBAL_THINLTO for Bazel: falling back to non-mixed build")
 			return false
 		}
 		if len(c.productVariables.SanitizeHost) > 0 {
-			fmt.Fprintln(os.Stderr, "unsupported product var SanitizeHost for Bazel: falling back to non-mixed build")
 			return false
 		}
 		if len(c.productVariables.SanitizeDevice) > 0 {
-			fmt.Fprintln(os.Stderr, "unsupported product var SanitizeDevice for Bazel: falling back to non-mixed build")
 			return false
 		}
 		if len(c.productVariables.SanitizeDeviceDiag) > 0 {
-			fmt.Fprintln(os.Stderr, "unsupported product var SanitizeDeviceDiag for Bazel: falling back to non-mixed build")
 			return false
 		}
 		if len(c.productVariables.SanitizeDeviceArch) > 0 {
-			fmt.Fprintln(os.Stderr, "unsupported product var SanitizeDeviceArch for Bazel: falling back to non-mixed build")
 			return false
 		}
 		return true
diff --git a/android/variable.go b/android/variable.go
index 9725895..e838b7c 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -702,124 +702,9 @@
 		}
 	}
 
-	productConfigProperties.zeroValuesForNamespacedVariables()
-
 	return productConfigProperties
 }
 
-// zeroValuesForNamespacedVariables ensures that selects that contain __only__
-// conditions default values have zero values set for the other non-default
-// values for that select statement.
-//
-// If the ProductConfigProperties map contains these items, as parsed from the .bp file:
-//
-//	library_linking_strategy: {
-//	    prefer_static: {
-//	        static_libs: [
-//	            "lib_a",
-//	            "lib_b",
-//	        ],
-//	    },
-//	    conditions_default: {
-//	        shared_libs: [
-//	            "lib_a",
-//	            "lib_b",
-//	        ],
-//	    },
-//	},
-//
-// Static_libs {Library_linking_strategy ANDROID prefer_static} [lib_a lib_b]
-// Shared_libs {Library_linking_strategy ANDROID conditions_default} [lib_a lib_b]
-//
-// We need to add this:
-//
-// Shared_libs {Library_linking_strategy ANDROID prefer_static} []
-//
-// so that the following gets generated for the "dynamic_deps" attribute,
-// instead of putting lib_a and lib_b directly into dynamic_deps without a
-// select:
-//
-//	dynamic_deps = select({
-//	    "//build/bazel/product_variables:android__library_linking_strategy__prefer_static": [],
-//	    "//conditions:default": [
-//	        "//foo/bar:lib_a",
-//	        "//foo/bar:lib_b",
-//	    ],
-//	}),
-func (props *ProductConfigProperties) zeroValuesForNamespacedVariables() {
-	// A map of product config properties to the zero values of their respective
-	// property value.
-	zeroValues := make(map[ProductConfigProperty]interface{})
-
-	// A map of prop names (e.g. cflags) to product config properties where the
-	// (prop name, ProductConfigProperty) tuple contains a non-conditions_default key.
-	//
-	// e.g.
-	//
-	// prefer_static: {
-	//     static_libs: [
-	//         "lib_a",
-	//         "lib_b",
-	//     ],
-	// },
-	// conditions_default: {
-	//     shared_libs: [
-	//         "lib_a",
-	//         "lib_b",
-	//     ],
-	// },
-	//
-	// The tuple of ("static_libs", prefer_static) would be in this map.
-	hasNonDefaultValue := make(map[string]map[ProductConfigProperty]bool)
-
-	// Iterate over all added soong config variables.
-	for propName, v := range *props {
-		for p, intf := range v {
-			if p.Namespace == "" {
-				// If there's no namespace, this isn't a soong config variable,
-				// i.e. this is a product variable. product variables have no
-				// conditions_defaults, so skip them.
-				continue
-			}
-			if p.FullConfig == bazel.ConditionsDefaultConfigKey {
-				// Skip conditions_defaults.
-				continue
-			}
-			if hasNonDefaultValue[propName] == nil {
-				hasNonDefaultValue[propName] = make(map[ProductConfigProperty]bool)
-				hasNonDefaultValue[propName][p] = false
-			}
-			// Create the zero value of the variable.
-			if _, exists := zeroValues[p]; !exists {
-				zeroValue := reflect.Zero(reflect.ValueOf(intf).Type()).Interface()
-				if zeroValue == nil {
-					panic(fmt.Errorf("Expected non-nil zero value for product/config variable %+v\n", intf))
-				}
-				zeroValues[p] = zeroValue
-			}
-			hasNonDefaultValue[propName][p] = true
-		}
-	}
-
-	for propName := range *props {
-		for p, zeroValue := range zeroValues {
-			// Ignore variables that already have a non-default value for that axis
-			if exists, _ := hasNonDefaultValue[propName][p]; !exists {
-				// fmt.Println(propName, p.Namespace, p.Name, p.FullConfig, zeroValue)
-				// Insert the zero value for this propname + product config value.
-				props.AddProductConfigProperty(
-					propName,
-					p.Namespace,
-					p.Name,
-					p.FullConfig,
-					zeroValue,
-					bazel.NoConfigAxis,
-				)
-			}
-		}
-	}
-}
-
 func (p *ProductConfigProperties) AddProductConfigProperty(
 	propertyName, namespace, productVariableName, config string, property interface{}, outerAxis bazel.ConfigurationAxis) {
 	if (*p)[propertyName] == nil {
@@ -945,14 +830,16 @@
 
 		for j := 0; j < variableValue.NumField(); j++ {
 			property := variableValue.Field(j)
+			// e.g. Asflags, Cflags, Enabled, etc.
+			propertyName := variableValue.Type().Field(j).Name
+			// config can also be "conditions_default".
+			config := proptools.PropertyNameForField(propertyName)
+
 			// If the property wasn't set, no need to pass it along
 			if property.IsZero() {
 				continue
 			}
 
-			// e.g. Asflags, Cflags, Enabled, etc.
-			propertyName := variableValue.Type().Field(j).Name
-
 			if v, ok := maybeExtractConfigVarProp(property); ok {
 				// The field is a struct, which is used by:
 				// 1) soong_config_string_variables
@@ -972,13 +859,14 @@
 				//     static_libs: ...
 				// }
 				field := v
+				// Iterate over fields of this struct prop.
 				for k := 0; k < field.NumField(); k++ {
-					// Iterate over fields of this struct prop.
-					if field.Field(k).IsZero() {
+					// For product variables, zero values are irrelevant; however, for soong config variables,
+					// empty values are relevant because there can also be a conditions default which is not
+					// applied for empty variables.
+					if field.Field(k).IsZero() && namespace == "" {
 						continue
 					}
-					// config can also be "conditions_default".
-					config := proptools.PropertyNameForField(propertyName)
 					actualPropertyName := field.Type().Field(k).Name
 
 					productConfigProperties.AddProductConfigProperty(
diff --git a/android/visibility.go b/android/visibility.go
index b209599..5955133 100644
--- a/android/visibility.go
+++ b/android/visibility.go
@@ -155,7 +155,11 @@
 }
 
 func isAncestor(p1 string, p2 string) bool {
-	return strings.HasPrefix(p2+"/", p1+"/")
+	// Equivalent to strings.HasPrefix(p2+"/", p1+"/"), but without the string copies
+	// The check for a trailing slash is so that we don't consider sibling
+	// directories with common prefixes to be ancestors, e.g. "fooo/bar" should not be
+	// a descendant of "foo".
+	return strings.HasPrefix(p2, p1) && (len(p2) == len(p1) || p2[len(p1)] == '/')
 }
 
 func (r subpackagesRule) String() string {
diff --git a/apex/apex.go b/apex/apex.go
index e99823b..9485a4b 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -3426,7 +3426,7 @@
 	Key                   bazel.LabelAttribute
 	Certificate           bazel.LabelAttribute  // used when the certificate prop is a module
 	Certificate_name      bazel.StringAttribute // used when the certificate prop is a string
-	Min_sdk_version       *string
+	Min_sdk_version       bazel.StringAttribute
 	Updatable             bazel.BoolAttribute
 	Installable           bazel.BoolAttribute
 	Binaries              bazel.LabelListAttribute
@@ -3445,6 +3445,10 @@
 	Native_shared_libs_64 bazel.LabelListAttribute
 }
 
+const (
+	minSdkVersionPropName = "Min_sdk_version"
+)
+
 // ConvertWithBp2build performs bp2build conversion of an apex
 func (a *apexBundle) ConvertWithBp2build(ctx android.TopDownMutatorContext) {
 	// We only convert apex and apex_test modules at this time
@@ -3483,11 +3487,19 @@
 		fileContextsLabelAttribute.SetValue(android.BazelLabelForModuleSrcSingle(ctx, *a.properties.File_contexts))
 	}
 
+	productVariableProps := android.ProductVariableProperties(ctx)
 	// TODO(b/219503907) this would need to be set to a.MinSdkVersionValue(ctx) but
 	// given it's coming via config, we probably don't want to put it in here.
-	var minSdkVersion *string
+	var minSdkVersion bazel.StringAttribute
 	if a.properties.Min_sdk_version != nil {
-		minSdkVersion = a.properties.Min_sdk_version
+		minSdkVersion.SetValue(*a.properties.Min_sdk_version)
+	}
+	if props, ok := productVariableProps[minSdkVersionPropName]; ok {
+		for c, p := range props {
+			if val, ok := p.(*string); ok {
+				minSdkVersion.SetSelectValue(c.ConfigurationAxis(), c.SelectKey(), val)
+			}
+		}
 	}
 
 	var keyLabelAttribute bazel.LabelAttribute
diff --git a/apex/builder.go b/apex/builder.go
index 3b9cac0..18d0836 100644
--- a/apex/builder.go
+++ b/apex/builder.go
@@ -1133,7 +1133,7 @@
 	if a.properties.Canned_fs_config != nil {
 		cmd.Text("cat").Input(android.PathForModuleSrc(ctx, *a.properties.Canned_fs_config))
 	}
-	cmd.Text(")").FlagWithOutput("> ", cannedFsConfig)
+	cmd.Text(") | LC_ALL=C sort ").FlagWithOutput("> ", cannedFsConfig)
 	builder.Build("generateFsConfig", fmt.Sprintf("Generating canned fs config for %s", a.BaseModuleName()))
 
 	return cannedFsConfig.OutputPath
diff --git a/bazel/properties.go b/bazel/properties.go
index 76450dc..8a6d1b0 100644
--- a/bazel/properties.go
+++ b/bazel/properties.go
@@ -1080,14 +1080,10 @@
 	if cs[axis] == nil {
 		cs[axis] = make(stringSelectValues)
 	}
-	var v = ""
-	if str != nil {
-		v = *str
-	}
-	cs[axis][config] = v
+	cs[axis][config] = str
 }
 
-type stringSelectValues map[string]string
+type stringSelectValues map[string]*string
 
 // HasConfigurableValues returns true if the attribute contains axis-specific string values.
 func (sa StringAttribute) HasConfigurableValues() bool {
@@ -1099,6 +1095,11 @@
 	return false
 }
 
+// SetValue sets the base, non-configured value for the Label
+func (sa *StringAttribute) SetValue(value string) {
+	sa.SetSelectValue(NoConfigAxis, "", &value)
+}
+
 // SetSelectValue set a value for a bazel select for the given axis, config and value.
 func (sa *StringAttribute) SetSelectValue(axis ConfigurationAxis, config string, str *string) {
 	axis.validateConfig(config)
@@ -1123,7 +1124,7 @@
 		return sa.Value
 	case arch, os, osArch, productVariables:
 		if v, ok := sa.ConfigurableValues[axis][config]; ok {
-			return &v
+			return v
 		} else {
 			return nil
 		}
@@ -1154,7 +1155,7 @@
 	_, containsProductVariables := axisTypes[productVariables]
 	if containsProductVariables {
 		if containsOs || containsArch || containsOsArch {
-			return fmt.Errorf("boolean attribute could not be collapsed as it has two or more unrelated axes")
+			return fmt.Errorf("string attribute could not be collapsed as it has two or more unrelated axes")
 		}
 	}
 	if (containsOs && containsArch) || (containsOsArch && (containsOs || containsArch)) {
@@ -1181,7 +1182,7 @@
 				}
 			}
 		}
-		// All os_arch values are now set. Clear os and arch axes.
+		/// All os_arch values are now set. Clear os and arch axes.
 		delete(sa.ConfigurableValues, ArchConfigurationAxis)
 		delete(sa.ConfigurableValues, OsConfigurationAxis)
 		// Verify post-condition; this should never fail, provided no additional
@@ -1189,6 +1190,21 @@
 		if len(sa.ConfigurableValues) > 1 {
 			panic(fmt.Errorf("error in collapsing attribute: %#v", sa))
 		}
+	} else if containsProductVariables {
+		usedBaseValue := false
+		for a, configToProp := range sa.ConfigurableValues {
+			if a.configurationType == productVariables {
+				for c, p := range configToProp {
+					if p == nil {
+						sa.SetSelectValue(a, c, sa.Value)
+						usedBaseValue = true
+					}
+				}
+			}
+		}
+		if usedBaseValue {
+			sa.Value = nil
+		}
 	}
 	return nil
 }
@@ -1367,6 +1383,9 @@
 // TryVariableSubstitution, replace string substitution formatting within each string in slice with
 // Starlark string.format compatible tag for productVariable.
 func TryVariableSubstitutions(slice []string, productVariable string) ([]string, bool) {
+	if len(slice) == 0 {
+		return slice, false
+	}
 	ret := make([]string, 0, len(slice))
 	changesMade := false
 	for _, s := range slice {
diff --git a/bp2build/bp2build.go b/bp2build/bp2build.go
index 5dc9612..86b9b27 100644
--- a/bp2build/bp2build.go
+++ b/bp2build/bp2build.go
@@ -45,17 +45,27 @@
 	bp2buildFiles := CreateBazelFiles(ctx.Config(), nil, res.buildFileToTargets, ctx.mode)
 	writeFiles(ctx, bp2buildDir, bp2buildFiles)
 
+	soongInjectionDir := android.PathForOutput(ctx, bazel.SoongInjectionDirName)
+	writeFiles(ctx, soongInjectionDir, CreateSoongInjectionDirFiles(ctx, res.metrics))
+
+	return &res.metrics
+}
+
+// Wrapper function that will be responsible for all files in soong_injection directory
+// This includes
+// 1. config value(s) that are hardcoded in Soong
+// 2. product_config variables
+func CreateSoongInjectionDirFiles(ctx *CodegenContext, metrics CodegenMetrics) []BazelFile {
+	var ret []BazelFile
+
 	productConfigFiles, err := CreateProductConfigFiles(ctx)
 	if err != nil {
 		fmt.Printf("ERROR: %s", err.Error())
 		os.Exit(1)
 	}
-
-	soongInjectionDir := android.PathForOutput(ctx, bazel.SoongInjectionDirName)
-	writeFiles(ctx, soongInjectionDir, productConfigFiles)
-	writeFiles(ctx, soongInjectionDir, CreateSoongInjectionFiles(ctx.Config(), res.metrics))
-
-	return &res.metrics
+	ret = append(ret, productConfigFiles...)
+	ret = append(ret, soongInjectionFiles(ctx.Config(), metrics)...)
+	return ret
 }
 
 // Get the output directory and create it if it doesn't exist.
diff --git a/bp2build/configurability.go b/bp2build/configurability.go
index 987c903..4244956 100644
--- a/bp2build/configurability.go
+++ b/bp2build/configurability.go
@@ -28,10 +28,13 @@
 			ret[selectKey] = reflect.ValueOf(strs)
 		}
 	}
+
 	// if there is a select, use the base value as the conditions default value
 	if len(ret) > 0 {
-		ret[bazel.ConditionsDefaultSelectKey] = value
-		value = reflect.Zero(value.Type())
+		if _, ok := ret[bazel.ConditionsDefaultSelectKey]; !ok {
+			ret[bazel.ConditionsDefaultSelectKey] = value
+			value = reflect.Zero(value.Type())
+		}
 	}
 
 	return value, []selects{ret}
diff --git a/bp2build/conversion.go b/bp2build/conversion.go
index e15dd59..e53f29e 100644
--- a/bp2build/conversion.go
+++ b/bp2build/conversion.go
@@ -20,7 +20,8 @@
 	Contents string
 }
 
-func CreateSoongInjectionFiles(cfg android.Config, metrics CodegenMetrics) []BazelFile {
+// PRIVATE: Use CreateSoongInjectionDirFiles instead
+func soongInjectionFiles(cfg android.Config, metrics CodegenMetrics) []BazelFile {
 	var files []BazelFile
 
 	files = append(files, newFile("android", GeneratedBuildFileName, "")) // Creates a //cc_toolchain package.
diff --git a/bp2build/conversion_test.go b/bp2build/conversion_test.go
index dfc7f0b..43daddc 100644
--- a/bp2build/conversion_test.go
+++ b/bp2build/conversion_test.go
@@ -84,7 +84,7 @@
 
 func TestCreateBazelFiles_Bp2Build_CreatesDefaultFiles(t *testing.T) {
 	testConfig := android.TestConfig("", make(map[string]string), "", make(map[string][]byte))
-	files := CreateSoongInjectionFiles(testConfig, CreateCodegenMetrics())
+	files := soongInjectionFiles(testConfig, CreateCodegenMetrics())
 
 	expectedFilePaths := []bazelFilepath{
 		{
diff --git a/bp2build/java_binary_host_conversion_test.go b/bp2build/java_binary_host_conversion_test.go
index e8551e5..46105c7 100644
--- a/bp2build/java_binary_host_conversion_test.go
+++ b/bp2build/java_binary_host_conversion_test.go
@@ -134,3 +134,153 @@
 		},
 	})
 }
+
+func TestJavaBinaryHostKotlinSrcs(t *testing.T) {
+	runJavaBinaryHostTestCase(t, Bp2buildTestCase{
+		Description: "java_binary_host with srcs, libs.",
+		Filesystem:  testFs,
+		Blueprint: `java_binary_host {
+    name: "java-binary-host",
+    manifest: "test.mf",
+    srcs: ["a.java", "b.kt"],
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("kt_jvm_library", "java-binary-host_kt", AttrNameToString{
+				"srcs": `[
+        "a.java",
+        "b.kt",
+    ]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+			MakeBazelTarget("java_binary", "java-binary-host", AttrNameToString{
+				"main_class":   `"com.android.test.MainClass"`,
+				"runtime_deps": `[":java-binary-host_kt"]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+		},
+	})
+}
+
+func TestJavaBinaryHostKotlinCommonSrcs(t *testing.T) {
+	runJavaBinaryHostTestCase(t, Bp2buildTestCase{
+		Description: "java_binary_host with common_srcs",
+		Filesystem:  testFs,
+		Blueprint: `java_binary_host {
+    name: "java-binary-host",
+    manifest: "test.mf",
+    srcs: ["a.java"],
+    common_srcs: ["b.kt"],
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("kt_jvm_library", "java-binary-host_kt", AttrNameToString{
+				"srcs":        `["a.java"]`,
+				"common_srcs": `["b.kt"]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+			MakeBazelTarget("java_binary", "java-binary-host", AttrNameToString{
+				"main_class":   `"com.android.test.MainClass"`,
+				"runtime_deps": `[":java-binary-host_kt"]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+		},
+	})
+}
+
+func TestJavaBinaryHostKotlinWithResourceDir(t *testing.T) {
+	runJavaBinaryHostTestCase(t, Bp2buildTestCase{
+		Description: "java_binary_host with srcs, libs, resource dir  .",
+		Filesystem: map[string]string{
+			"test.mf":        "Main-Class: com.android.test.MainClass",
+			"res/a.res":      "",
+			"res/dir1/b.res": "",
+		},
+		Blueprint: `java_binary_host {
+    name: "java-binary-host",
+    manifest: "test.mf",
+    srcs: ["a.java", "b.kt"],
+    java_resource_dirs: ["res"],
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("kt_jvm_library", "java-binary-host_kt", AttrNameToString{
+				"srcs": `[
+        "a.java",
+        "b.kt",
+    ]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+			MakeBazelTarget("java_binary", "java-binary-host", AttrNameToString{
+				"main_class":   `"com.android.test.MainClass"`,
+				"runtime_deps": `[":java-binary-host_kt"]`,
+				"resources": `[
+        "res/a.res",
+        "res/dir1/b.res",
+    ]`,
+				"resource_strip_prefix": `"res"`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+		},
+	})
+}
+
+func TestJavaBinaryHostKotlinWithResources(t *testing.T) {
+	runJavaBinaryHostTestCase(t, Bp2buildTestCase{
+		Description: "java_binary_host with srcs, libs, resources.",
+		Filesystem: map[string]string{
+			"test.mf":   "Main-Class: com.android.test.MainClass",
+			"res/a.res": "",
+			"res/b.res": "",
+		},
+		Blueprint: `java_binary_host {
+    name: "java-binary-host",
+    manifest: "test.mf",
+    srcs: ["a.java", "b.kt"],
+    java_resources: ["res/a.res", "res/b.res"],
+}
+`,
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("kt_jvm_library", "java-binary-host_kt", AttrNameToString{
+				"srcs": `[
+        "a.java",
+        "b.kt",
+    ]`,
+				"resources": `[
+        "res/a.res",
+        "res/b.res",
+    ]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+			MakeBazelTarget("java_binary", "java-binary-host", AttrNameToString{
+				"main_class":   `"com.android.test.MainClass"`,
+				"runtime_deps": `[":java-binary-host_kt"]`,
+				"target_compatible_with": `select({
+        "//build/bazel/platforms/os:android": ["@platforms//:incompatible"],
+        "//conditions:default": [],
+    })`,
+			}),
+		},
+	})
+}
diff --git a/bp2build/soong_config_module_type_conversion_test.go b/bp2build/soong_config_module_type_conversion_test.go
index dcd1f85..89be767 100644
--- a/bp2build/soong_config_module_type_conversion_test.go
+++ b/bp2build/soong_config_module_type_conversion_test.go
@@ -32,6 +32,7 @@
 	android.RegisterSoongConfigModuleBuildComponents(ctx)
 
 	ctx.RegisterModuleType("cc_library", cc.LibraryFactory)
+	ctx.RegisterModuleType("custom", customModuleFactoryHostAndDevice)
 }
 
 func TestErrorInBpFileDoesNotPanic(t *testing.T) {
@@ -192,6 +193,7 @@
     copts = select({
         "//build/bazel/product_variables:acme__board__soc_a": ["-DSOC_A"],
         "//build/bazel/product_variables:acme__board__soc_b": ["-DSOC_B"],
+        "//build/bazel/product_variables:acme__board__soc_c": [],
         "//conditions:default": ["-DSOC_DEFAULT"],
     }),
     local_includes = ["."],
@@ -210,7 +212,7 @@
 
 soong_config_string_variable {
 	name: "board",
-	values: ["soc_a", "soc_b", "soc_c"],
+	values: ["soc_a", "soc_b", "soc_c", "soc_d"],
 }
 
 soong_config_module_type {
@@ -263,6 +265,7 @@
     copts = select({
         "//build/bazel/product_variables:acme__board__soc_a": ["-DSOC_A"],
         "//build/bazel/product_variables:acme__board__soc_b": ["-DSOC_B"],
+        "//build/bazel/product_variables:acme__board__soc_c": [],
         "//conditions:default": ["-DSOC_DEFAULT"],
     }) + select({
         "//build/bazel/product_variables:acme__feature1": ["-DFEATURE1"],
@@ -279,7 +282,7 @@
 	bp := `
 soong_config_string_variable {
 	name: "board",
-	values: ["soc_a", "soc_b", "soc_c"],
+	values: ["soc_a", "soc_b", "soc_c", "soc_d"],
 }
 
 soong_config_module_type {
@@ -332,11 +335,13 @@
     copts = select({
         "//build/bazel/product_variables:acme__board__soc_a": ["-DSOC_A"],
         "//build/bazel/product_variables:acme__board__soc_b": ["-DSOC_B"],
+        "//build/bazel/product_variables:acme__board__soc_c": [],
         "//conditions:default": ["-DSOC_DEFAULT"],
     }),
     implementation_deps = select({
         "//build/bazel/product_variables:acme__board__soc_a": ["//foo/bar:soc_a_dep"],
         "//build/bazel/product_variables:acme__board__soc_b": ["//foo/bar:soc_b_dep"],
+        "//build/bazel/product_variables:acme__board__soc_c": [],
         "//conditions:default": ["//foo/bar:soc_default_static_dep"],
     }),
     local_includes = ["."],
@@ -604,6 +609,139 @@
 )`}})
 }
 
+func TestSoongConfigModuleType_Defaults_UseBaselineValueForStringProp(t *testing.T) {
+	bp := `
+soong_config_string_variable {
+    name: "library_linking_strategy",
+    values: [
+        "prefer_static",
+    ],
+}
+
+soong_config_module_type {
+    name: "library_linking_strategy_custom",
+    module_type: "custom",
+    config_namespace: "ANDROID",
+    variables: ["library_linking_strategy"],
+    properties: [
+        "string_literal_prop",
+    ],
+}
+
+library_linking_strategy_custom {
+    name: "foo",
+    string_literal_prop: "29",
+    soong_config_variables: {
+        library_linking_strategy: {
+            prefer_static: {},
+            conditions_default: {
+              string_literal_prop: "30",
+            },
+        },
+    },
+}`
+
+	runSoongConfigModuleTypeTest(t, Bp2buildTestCase{
+		Description:                "soong config variables - generates selects for library_linking_strategy",
+		ModuleTypeUnderTest:        "cc_binary",
+		ModuleTypeUnderTestFactory: cc.BinaryFactory,
+		Blueprint:                  bp,
+		Filesystem:                 map[string]string{},
+		ExpectedBazelTargets: []string{
+			MakeBazelTarget("custom", "foo", AttrNameToString{
+				"string_literal_prop": `select({
+        "//build/bazel/product_variables:android__library_linking_strategy__prefer_static": "29",
+        "//conditions:default": "30",
+    })`,
+			}),
+		},
+	})
+}
+
+func TestSoongConfigModuleType_UnsetConditions(t *testing.T) {
+	bp := `
+soong_config_string_variable {
+    name: "library_linking_strategy",
+    values: [
+        "prefer_static",
+    ],
+}
+
+soong_config_module_type {
+    name: "library_linking_strategy_cc_defaults",
+    module_type: "cc_defaults",
+    config_namespace: "ANDROID",
+    variables: ["library_linking_strategy"],
+    properties: [
+        "shared_libs",
+        "static_libs",
+    ],
+}
+
+library_linking_strategy_cc_defaults {
+    name: "library_linking_strategy_lib_a_defaults",
+    soong_config_variables: {
+        library_linking_strategy: {
+            prefer_static: {},
+            conditions_default: {
+                shared_libs: [
+                    "lib_a",
+                ],
+            },
+        },
+    },
+}
+
+library_linking_strategy_cc_defaults {
+    name: "library_linking_strategy_merged_defaults",
+    defaults: ["library_linking_strategy_lib_a_defaults"],
+    host_supported: true,
+    soong_config_variables: {
+        library_linking_strategy: {
+            prefer_static: {},
+            conditions_default: {
+                shared_libs: [
+                    "lib_b",
+                ],
+            },
+        },
+    },
+}
+
+cc_binary {
+    name: "library_linking_strategy_sample_binary",
+    srcs: ["library_linking_strategy.cc"],
+    defaults: ["library_linking_strategy_merged_defaults"],
+    include_build_directory: false,
+}`
+
+	otherDeps := `
+cc_library { name: "lib_a", bazel_module: { bp2build_available: false } }
+cc_library { name: "lib_b", bazel_module: { bp2build_available: false } }
+cc_library { name: "lib_default", bazel_module: { bp2build_available: false } }
+`
+
+	runSoongConfigModuleTypeTest(t, Bp2buildTestCase{
+		Description:                "soong config variables - generates selects for library_linking_strategy",
+		ModuleTypeUnderTest:        "cc_binary",
+		ModuleTypeUnderTestFactory: cc.BinaryFactory,
+		Blueprint:                  bp,
+		Filesystem: map[string]string{
+			"foo/bar/Android.bp": otherDeps,
+		},
+		ExpectedBazelTargets: []string{`cc_binary(
+    name = "library_linking_strategy_sample_binary",
+    dynamic_deps = select({
+        "//build/bazel/product_variables:android__library_linking_strategy__prefer_static": [],
+        "//conditions:default": [
+            "//foo/bar:lib_b",
+            "//foo/bar:lib_a",
+        ],
+    }),
+    srcs = ["library_linking_strategy.cc"],
+)`}})
+}
+
 func TestSoongConfigModuleType_Defaults(t *testing.T) {
 	bp := `
 soong_config_string_variable {
diff --git a/bp2build/testing.go b/bp2build/testing.go
index 1f9874c..c340a8f 100644
--- a/bp2build/testing.go
+++ b/bp2build/testing.go
@@ -453,6 +453,14 @@
 			}
 		}
 	}
+	productVariableProps := android.ProductVariableProperties(ctx)
+	if props, ok := productVariableProps["String_literal_prop"]; ok {
+		for c, p := range props {
+			if val, ok := p.(*string); ok {
+				strAttr.SetSelectValue(c.ConfigurationAxis(), c.SelectKey(), val)
+			}
+		}
+	}
 
 	paths.ResolveExcludes()
 
diff --git a/cc/bp2build.go b/cc/bp2build.go
index d331d89..6f97260 100644
--- a/cc/bp2build.go
+++ b/cc/bp2build.go
@@ -91,12 +91,12 @@
 	}
 	archVariantProps := m.GetArchVariantProperties(ctx, &BaseCompilerProperties{})
 	for axis, configToProps := range archVariantProps {
-		for config, _props := range configToProps {
+		for cfg, _props := range configToProps {
 			if archProps, ok := _props.(*BaseCompilerProperties); ok {
 				archDisabledSrcs := android.BazelLabelForModuleSrc(ctx, archProps.Tidy_disabled_srcs)
-				moduleAttrs.Tidy_disabled_srcs.SetSelectValue(axis, config, archDisabledSrcs)
+				moduleAttrs.Tidy_disabled_srcs.SetSelectValue(axis, cfg, archDisabledSrcs)
 				archTimeoutSrcs := android.BazelLabelForModuleSrc(ctx, archProps.Tidy_timeout_srcs)
-				moduleAttrs.Tidy_timeout_srcs.SetSelectValue(axis, config, archTimeoutSrcs)
+				moduleAttrs.Tidy_timeout_srcs.SetSelectValue(axis, cfg, archTimeoutSrcs)
 			}
 		}
 	}
@@ -205,14 +205,14 @@
 
 func bp2BuildPropParseHelper(ctx android.ArchVariantContext, module *Module, propsType interface{}, parseFunc func(axis bazel.ConfigurationAxis, config string, props interface{})) {
 	for axis, configToProps := range module.GetArchVariantProperties(ctx, propsType) {
-		for config, props := range configToProps {
-			parseFunc(axis, config, props)
+		for cfg, props := range configToProps {
+			parseFunc(axis, cfg, props)
 		}
 	}
 }
 
 // Parses properties common to static and shared libraries. Also used for prebuilt libraries.
-func bp2buildParseStaticOrSharedProps(ctx android.BazelConversionPathContext, module *Module, lib *libraryDecorator, isStatic bool) staticOrSharedAttributes {
+func bp2buildParseStaticOrSharedProps(ctx android.BazelConversionPathContext, module *Module, _ *libraryDecorator, isStatic bool) staticOrSharedAttributes {
 	attrs := staticOrSharedAttributes{}
 
 	setAttrs := func(axis bazel.ConfigurationAxis, config string, props StaticOrSharedProperties) {
@@ -669,8 +669,8 @@
 
 	ret := &bazel.LabelAttribute{}
 	for _, axis := range ca.asmSrcs.SortedConfigurationAxes() {
-		for config := range ca.asmSrcs.ConfigurableValues[axis] {
-			ret.SetSelectValue(axis, config, bazel.Label{Label: ":" + m.Name() + "_yasm"})
+		for cfg := range ca.asmSrcs.ConfigurableValues[axis] {
+			ret.SetSelectValue(axis, cfg, bazel.Label{Label: ":" + m.Name() + "_yasm"})
 		}
 	}
 	return ret
@@ -690,8 +690,8 @@
 			if _, ok := axisToConfigs[axis]; !ok {
 				axisToConfigs[axis] = map[string]bool{}
 			}
-			for config, _ := range configMap {
-				axisToConfigs[axis][config] = true
+			for cfg := range configMap {
+				axisToConfigs[axis][cfg] = true
 			}
 		}
 	}
@@ -703,49 +703,49 @@
 	linkerAttrs := linkerAttributes{}
 
 	for axis, configs := range axisToConfigs {
-		for config, _ := range configs {
+		for cfg := range configs {
 			var allHdrs []string
-			if baseCompilerProps, ok := archVariantCompilerProps[axis][config].(*BaseCompilerProperties); ok {
+			if baseCompilerProps, ok := archVariantCompilerProps[axis][cfg].(*BaseCompilerProperties); ok {
 				allHdrs = baseCompilerProps.Generated_headers
 				if baseCompilerProps.Lex != nil {
-					compilerAttrs.lexopts.SetSelectValue(axis, config, baseCompilerProps.Lex.Flags)
+					compilerAttrs.lexopts.SetSelectValue(axis, cfg, baseCompilerProps.Lex.Flags)
 				}
-				(&compilerAttrs).bp2buildForAxisAndConfig(ctx, axis, config, baseCompilerProps)
+				(&compilerAttrs).bp2buildForAxisAndConfig(ctx, axis, cfg, baseCompilerProps)
 			}
 
 			var exportHdrs []string
 
-			if baseLinkerProps, ok := archVariantLinkerProps[axis][config].(*BaseLinkerProperties); ok {
+			if baseLinkerProps, ok := archVariantLinkerProps[axis][cfg].(*BaseLinkerProperties); ok {
 				exportHdrs = baseLinkerProps.Export_generated_headers
 
-				(&linkerAttrs).bp2buildForAxisAndConfig(ctx, module.Binary(), axis, config, baseLinkerProps)
+				(&linkerAttrs).bp2buildForAxisAndConfig(ctx, module.Binary(), axis, cfg, baseLinkerProps)
 			}
 			headers := maybePartitionExportedAndImplementationsDeps(ctx, !module.Binary(), allHdrs, exportHdrs, android.BazelLabelForModuleDeps)
-			implementationHdrs.SetSelectValue(axis, config, headers.implementation)
-			compilerAttrs.hdrs.SetSelectValue(axis, config, headers.export)
+			implementationHdrs.SetSelectValue(axis, cfg, headers.implementation)
+			compilerAttrs.hdrs.SetSelectValue(axis, cfg, headers.export)
 
 			exportIncludes, exportAbsoluteIncludes := includesFromLabelList(headers.export)
-			compilerAttrs.includes.Includes.SetSelectValue(axis, config, exportIncludes)
-			compilerAttrs.includes.AbsoluteIncludes.SetSelectValue(axis, config, exportAbsoluteIncludes)
+			compilerAttrs.includes.Includes.SetSelectValue(axis, cfg, exportIncludes)
+			compilerAttrs.includes.AbsoluteIncludes.SetSelectValue(axis, cfg, exportAbsoluteIncludes)
 
 			includes, absoluteIncludes := includesFromLabelList(headers.implementation)
-			currAbsoluteIncludes := compilerAttrs.absoluteIncludes.SelectValue(axis, config)
+			currAbsoluteIncludes := compilerAttrs.absoluteIncludes.SelectValue(axis, cfg)
 			currAbsoluteIncludes = android.FirstUniqueStrings(append(currAbsoluteIncludes, absoluteIncludes...))
 
-			compilerAttrs.absoluteIncludes.SetSelectValue(axis, config, currAbsoluteIncludes)
+			compilerAttrs.absoluteIncludes.SetSelectValue(axis, cfg, currAbsoluteIncludes)
 
-			currIncludes := compilerAttrs.localIncludes.SelectValue(axis, config)
+			currIncludes := compilerAttrs.localIncludes.SelectValue(axis, cfg)
 			currIncludes = android.FirstUniqueStrings(append(currIncludes, includes...))
 
-			compilerAttrs.localIncludes.SetSelectValue(axis, config, currIncludes)
+			compilerAttrs.localIncludes.SetSelectValue(axis, cfg, currIncludes)
 
-			if libraryProps, ok := archVariantLibraryProperties[axis][config].(*LibraryProperties); ok {
+			if libraryProps, ok := archVariantLibraryProperties[axis][cfg].(*LibraryProperties); ok {
 				if axis == bazel.NoConfigAxis {
 					compilerAttrs.stubsSymbolFile = libraryProps.Stubs.Symbol_file
-					compilerAttrs.stubsVersions.SetSelectValue(axis, config, libraryProps.Stubs.Versions)
+					compilerAttrs.stubsVersions.SetSelectValue(axis, cfg, libraryProps.Stubs.Versions)
 				}
 				if suffix := libraryProps.Suffix; suffix != nil {
-					compilerAttrs.suffix.SetSelectValue(axis, config, suffix)
+					compilerAttrs.suffix.SetSelectValue(axis, cfg, suffix)
 				}
 			}
 		}
@@ -1213,7 +1213,7 @@
 	for name, dep := range productVarToDepFields {
 		props, exists := productVariableProps[name]
 		excludeProps, excludesExists := productVariableProps[dep.excludesField]
-		// if neither an include or excludes property exists, then skip it
+		// if neither an include nor excludes property exists, then skip it
 		if !exists && !excludesExists {
 			continue
 		}
@@ -1352,7 +1352,7 @@
 
 func bazelLabelForStaticModule(ctx android.BazelConversionPathContext, m blueprint.Module) string {
 	label := android.BazelModuleLabel(ctx, m)
-	if ccModule, ok := m.(*Module); ok && ccModule.typ() == fullLibrary && !android.GetBp2BuildAllowList().GenerateCcLibraryStaticOnly(m.Name()) {
+	if ccModule, ok := m.(*Module); ok && ccModule.typ() == fullLibrary {
 		return BazelLabelNameForStaticModule(label)
 	}
 	return label
diff --git a/cc/config/global.go b/cc/config/global.go
index e78839b..811e86e 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -369,10 +369,6 @@
 			flags = append(flags, "-Wno-unused-command-line-argument")
 		}
 
-		if ctx.Config().IsEnvTrue("LLVM_NEXT") {
-			flags = append(flags, llvmNextExtraCommonGlobalCflags...)
-		}
-
 		if ctx.Config().IsEnvTrue("ALLOW_UNKNOWN_WARNING_OPTION") {
 			flags = append(flags, "-Wno-error=unknown-warning-option")
 		}
@@ -388,8 +384,17 @@
 		return strings.Join(deviceGlobalCflags, " ")
 	})
 
+	// Export the static default NoOverrideGlobalCflags to Bazel.
+	exportedVars.ExportStringList("NoOverrideGlobalCflags", noOverrideGlobalCflags)
+	pctx.VariableFunc("NoOverrideGlobalCflags", func(ctx android.PackageVarContext) string {
+		flags := noOverrideGlobalCflags
+		if ctx.Config().IsEnvTrue("LLVM_NEXT") {
+			flags = append(noOverrideGlobalCflags, llvmNextExtraCommonGlobalCflags...)
+		}
+		return strings.Join(flags, " ")
+	})
+
 	exportedVars.ExportStringListStaticVariable("HostGlobalCflags", hostGlobalCflags)
-	exportedVars.ExportStringListStaticVariable("NoOverrideGlobalCflags", noOverrideGlobalCflags)
 	exportedVars.ExportStringListStaticVariable("NoOverrideExternalGlobalCflags", noOverrideExternalGlobalCflags)
 	exportedVars.ExportStringListStaticVariable("CommonGlobalCppflags", commonGlobalCppflags)
 	exportedVars.ExportStringListStaticVariable("ExternalCflags", extraExternalCflags)
diff --git a/cc/library.go b/cc/library.go
index 787de44..8fd0019 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -292,14 +292,6 @@
 }
 
 func libraryBp2Build(ctx android.TopDownMutatorContext, m *Module) {
-	// For some cc_library modules, their static variants are ready to be
-	// converted, but not their shared variants. For these modules, delegate to
-	// the cc_library_static bp2build converter temporarily instead.
-	if android.GetBp2BuildAllowList().GenerateCcLibraryStaticOnly(ctx.Module().Name()) {
-		sharedOrStaticLibraryBp2Build(ctx, m, true)
-		return
-	}
-
 	sharedAttrs := bp2BuildParseSharedProps(ctx, m)
 	staticAttrs := bp2BuildParseStaticProps(ctx, m)
 	baseAttributes := bp2BuildParseBaseProps(ctx, m)
@@ -413,12 +405,12 @@
 	sharedTargetAttrs.Suffix = compilerAttrs.suffix
 
 	for axis, configToProps := range m.GetArchVariantProperties(ctx, &LibraryProperties{}) {
-		for config, props := range configToProps {
+		for cfg, props := range configToProps {
 			if props, ok := props.(*LibraryProperties); ok {
 				if props.Inject_bssl_hash != nil {
 					// This is an edge case applies only to libcrypto
 					if m.Name() == "libcrypto" || m.Name() == "libcrypto_for_testing" {
-						sharedTargetAttrs.Inject_bssl_hash.SetSelectValue(axis, config, props.Inject_bssl_hash)
+						sharedTargetAttrs.Inject_bssl_hash.SetSelectValue(axis, cfg, props.Inject_bssl_hash)
 					} else {
 						ctx.PropertyErrorf("inject_bssl_hash", "only applies to libcrypto")
 					}
@@ -1034,7 +1026,7 @@
 	return ret
 }
 
-func GlobGeneratedHeadersForSnapshot(ctx android.ModuleContext, paths android.Paths) android.Paths {
+func GlobGeneratedHeadersForSnapshot(_ android.ModuleContext, paths android.Paths) android.Paths {
 	ret := android.Paths{}
 	for _, header := range paths {
 		// TODO(b/148123511): remove exportedDeps after cleaning up genrule
@@ -1900,7 +1892,7 @@
 	errorMessage := "error: Please follow https://android.googlesource.com/platform/development/+/master/vndk/tools/header-checker/README.md#configure-cross_version-abi-check to resolve the ABI difference between your source code and version " + prevVersion + "."
 
 	library.sourceAbiDiff(ctx, referenceDump, baseName, prevVersion,
-		isLlndkOrNdk, /* allowExtensions */ true, sourceVersion, errorMessage)
+		isLlndkOrNdk, true /* allowExtensions */, sourceVersion, errorMessage)
 }
 
 func (library *libraryDecorator) sameVersionAbiDiff(ctx android.ModuleContext, referenceDump android.Path,
@@ -1909,7 +1901,7 @@
 	libName := strings.TrimSuffix(baseName, filepath.Ext(baseName))
 	errorMessage := "error: Please update ABI references with: $$ANDROID_BUILD_TOP/development/vndk/tools/header-checker/utils/create_reference_dumps.py -l " + libName
 
-	library.sourceAbiDiff(ctx, referenceDump, baseName, /* nameExt */ "",
+	library.sourceAbiDiff(ctx, referenceDump, baseName, "",
 		isLlndkOrNdk, allowExtensions, "current", errorMessage)
 }
 
@@ -1920,7 +1912,7 @@
 	errorMessage := "error: Please update ABI references with: $$ANDROID_BUILD_TOP/development/vndk/tools/header-checker/utils/create_reference_dumps.py -l " + libName + " -ref-dump-dir $$ANDROID_BUILD_TOP/" + refDumpDir
 
 	library.sourceAbiDiff(ctx, referenceDump, baseName, nameExt,
-		isLlndkOrNdk, /* allowExtensions */ false, "current", errorMessage)
+		isLlndkOrNdk, false /* allowExtensions */, "current", errorMessage)
 }
 
 func (library *libraryDecorator) linkSAbiDumpFiles(ctx ModuleContext, objs Objects, fileName string, soFile android.Path) {
diff --git a/cc/linker.go b/cc/linker.go
index 625d89c..371d78d 100644
--- a/cc/linker.go
+++ b/cc/linker.go
@@ -15,10 +15,10 @@
 package cc
 
 import (
-	"fmt"
-
 	"android/soong/android"
 	"android/soong/cc/config"
+	"fmt"
+	"path/filepath"
 
 	"github.com/google/blueprint"
 	"github.com/google/blueprint/proptools"
@@ -270,8 +270,7 @@
 type baseLinker struct {
 	Properties        BaseLinkerProperties
 	dynamicProperties struct {
-		RunPaths   []string `blueprint:"mutated"`
-		BuildStubs bool     `blueprint:"mutated"`
+		BuildStubs bool `blueprint:"mutated"`
 	}
 
 	sanitize *sanitize
@@ -281,13 +280,8 @@
 	linker.Properties.Ldflags = append(linker.Properties.Ldflags, flags...)
 }
 
-// linkerInit initializes dynamic properties of the linker (such as runpath).
+// linkerInit initializes dynamic properties of the linker.
 func (linker *baseLinker) linkerInit(ctx BaseModuleContext) {
-	if ctx.toolchain().Is64Bit() {
-		linker.dynamicProperties.RunPaths = append(linker.dynamicProperties.RunPaths, "../lib64", "lib64")
-	} else {
-		linker.dynamicProperties.RunPaths = append(linker.dynamicProperties.RunPaths, "../lib", "lib")
-	}
 }
 
 func (linker *baseLinker) linkerProps() []interface{} {
@@ -529,17 +523,8 @@
 
 	flags.Local.LdFlags = append(flags.Local.LdFlags, proptools.NinjaAndShellEscapeList(linker.Properties.Ldflags)...)
 
-	if ctx.Host() && !ctx.Windows() {
-		rpathPrefix := `\$$ORIGIN/`
-		if ctx.Darwin() {
-			rpathPrefix = "@loader_path/"
-		}
-
-		if !ctx.static() {
-			for _, rpath := range linker.dynamicProperties.RunPaths {
-				flags.Global.LdFlags = append(flags.Global.LdFlags, "-Wl,-rpath,"+rpathPrefix+rpath)
-			}
-		}
+	if ctx.Host() && !ctx.Windows() && !ctx.static() {
+		flags.Global.LdFlags = append(flags.Global.LdFlags, RpathFlags(ctx)...)
 	}
 
 	if ctx.useSdk() {
@@ -610,6 +595,45 @@
 	return flags
 }
 
+// RpathFlags returns the rpath linker flags for current target to search the following directories relative
+// to the binary:
+//
+//   - "." to find libraries alongside tests
+//   - "lib[64]" to find libraries in a subdirectory of the binaries' directory
+//   - "../lib[64]" to find libraries when the binaries are in a bin directory
+//   - "../../lib[64]" to find libraries in out/host/linux-x86/lib64 when the test or binary is in
+//     out/host/linux-x86/nativetest/<test dir>/<test>
+//   - "../../../lib[[64] to find libraries in out/host/linux-x86/lib64 when the test or binary is in
+//     out/host/linux-x86/testcases/<test dir>/<CPU>/<test>
+func RpathFlags(ctx android.ModuleContext) []string {
+	key := struct {
+		os   android.OsType
+		arch android.ArchType
+	}{ctx.Target().Os, ctx.Target().Arch.ArchType}
+
+	return ctx.Config().OnceStringSlice(android.NewCustomOnceKey(key), func() []string {
+		rpathPrefix := `\$$ORIGIN/`
+		if key.os == android.Darwin {
+			rpathPrefix = "@loader_path/"
+		}
+
+		var libDir string
+		if key.arch.Multilib == "lib64" {
+			libDir = "lib64"
+		} else {
+			libDir = "lib"
+		}
+
+		return []string{
+			"-Wl,-rpath," + rpathPrefix,
+			"-Wl,-rpath," + rpathPrefix + libDir,
+			"-Wl,-rpath," + rpathPrefix + filepath.Join("..", libDir),
+			"-Wl,-rpath," + rpathPrefix + filepath.Join("../..", libDir),
+			"-Wl,-rpath," + rpathPrefix + filepath.Join("../../..", libDir),
+		}
+	})
+}
+
 func (linker *baseLinker) link(ctx ModuleContext,
 	flags Flags, deps PathDeps, objs Objects) android.Path {
 	panic(fmt.Errorf("baseLinker doesn't know how to link"))
diff --git a/cc/test.go b/cc/test.go
index 16ef0ef..4b968dc 100644
--- a/cc/test.go
+++ b/cc/test.go
@@ -311,23 +311,6 @@
 	return deps
 }
 
-func (test *testDecorator) linkerInit(ctx BaseModuleContext, linker *baseLinker) {
-	// 1. Add ../../lib[64] to rpath so that out/host/linux-x86/nativetest/<test dir>/<test> can
-	// find out/host/linux-x86/lib[64]/library.so
-	// 2. Add ../../../lib[64] to rpath so that out/host/linux-x86/testcases/<test dir>/<CPU>/<test> can
-	// also find out/host/linux-x86/lib[64]/library.so
-	runpaths := []string{"../../lib", "../../../lib"}
-	for _, runpath := range runpaths {
-		if ctx.toolchain().Is64Bit() {
-			runpath += "64"
-		}
-		linker.dynamicProperties.RunPaths = append(linker.dynamicProperties.RunPaths, runpath)
-	}
-
-	// add "" to rpath so that test binaries can find libraries in their own test directory
-	linker.dynamicProperties.RunPaths = append(linker.dynamicProperties.RunPaths, "")
-}
-
 func (test *testDecorator) linkerProps() []interface{} {
 	return []interface{}{&test.LinkerProperties}
 }
@@ -356,11 +339,6 @@
 	return props
 }
 
-func (test *testBinary) linkerInit(ctx BaseModuleContext) {
-	test.testDecorator.linkerInit(ctx, test.binaryDecorator.baseLinker)
-	test.binaryDecorator.linkerInit(ctx)
-}
-
 func (test *testBinary) linkerDeps(ctx DepsContext, deps Deps) Deps {
 	deps = test.testDecorator.linkerDeps(ctx, deps)
 	deps = test.binaryDecorator.linkerDeps(ctx, deps)
@@ -535,11 +513,6 @@
 	return append(props, test.libraryDecorator.linkerProps()...)
 }
 
-func (test *testLibrary) linkerInit(ctx BaseModuleContext) {
-	test.testDecorator.linkerInit(ctx, test.libraryDecorator.baseLinker)
-	test.libraryDecorator.linkerInit(ctx)
-}
-
 func (test *testLibrary) linkerDeps(ctx DepsContext, deps Deps) Deps {
 	deps = test.testDecorator.linkerDeps(ctx, deps)
 	deps = test.libraryDecorator.linkerDeps(ctx, deps)
@@ -610,15 +583,6 @@
 	return true
 }
 
-func (benchmark *benchmarkDecorator) linkerInit(ctx BaseModuleContext) {
-	runpath := "../../lib"
-	if ctx.toolchain().Is64Bit() {
-		runpath += "64"
-	}
-	benchmark.baseLinker.dynamicProperties.RunPaths = append(benchmark.baseLinker.dynamicProperties.RunPaths, runpath)
-	benchmark.binaryDecorator.linkerInit(ctx)
-}
-
 func (benchmark *benchmarkDecorator) linkerProps() []interface{} {
 	props := benchmark.binaryDecorator.linkerProps()
 	props = append(props, &benchmark.Properties)
diff --git a/cmd/multiproduct_kati/main.go b/cmd/multiproduct_kati/main.go
index d8d5e5d..0115f4a 100644
--- a/cmd/multiproduct_kati/main.go
+++ b/cmd/multiproduct_kati/main.go
@@ -321,7 +321,7 @@
 		jobs = runtime.NumCPU() / 4
 
 		ramGb := int(detectTotalRAM() / (1024 * 1024 * 1024))
-		if ramJobs := ramGb / 30; ramGb > 0 && jobs > ramJobs {
+		if ramJobs := ramGb / 40; ramGb > 0 && jobs > ramJobs {
 			jobs = ramJobs
 		}
 
diff --git a/cmd/soong_build/main.go b/cmd/soong_build/main.go
index 696c159..29a6f95 100644
--- a/cmd/soong_build/main.go
+++ b/cmd/soong_build/main.go
@@ -145,8 +145,10 @@
 func runApiBp2build(ctx *android.Context, extraNinjaDeps []string) string {
 	ctx.EventHandler.Begin("api_bp2build")
 	defer ctx.EventHandler.End("api_bp2build")
-	// Do not allow missing dependencies.
-	ctx.SetAllowMissingDependencies(false)
+	// api_bp2build does not run the typical pipeline of soong mutators.
+	// Hoevever, it still runs the defaults mutator which can create dependencies.
+	// These dependencies might not always exist (e.g. in tests)
+	ctx.SetAllowMissingDependencies(ctx.Config().AllowMissingDependencies())
 	ctx.RegisterForApiBazelConversion()
 
 	// Register the Android.bp files in the tree
@@ -176,7 +178,7 @@
 	ninjaDeps = append(ninjaDeps, codegenContext.AdditionalNinjaDeps()...)
 
 	// Create soong_injection repository
-	soongInjectionFiles := bp2build.CreateSoongInjectionFiles(ctx.Config(), bp2build.CreateCodegenMetrics())
+	soongInjectionFiles := bp2build.CreateSoongInjectionDirFiles(codegenContext, bp2build.CreateCodegenMetrics())
 	absoluteSoongInjectionDir := shared.JoinPath(topDir, ctx.Config().SoongOutDir(), bazel.SoongInjectionDirName)
 	for _, file := range soongInjectionFiles {
 		// The API targets in api_bp2build workspace do not have any dependency on api_bp2build.
diff --git a/go.mod b/go.mod
index 7239f6d..a5d9dd5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,21 +1,9 @@
 module android/soong
 
+go 1.19
+
 require (
-  google.golang.org/protobuf v0.0.0
-  github.com/google/blueprint v0.0.0
-  prebuilts/bazel/common/proto/analysis_v2 v0.0.0
-  prebuilts/bazel/common/proto/build v0.0.0 // indirect
+	github.com/google/blueprint v0.0.0
+	google.golang.org/protobuf v0.0.0
+	prebuilts/bazel/common/proto/analysis_v2 v0.0.0
 )
-
-replace (
-  google.golang.org/protobuf v0.0.0 => ../../external/golang-protobuf
-  github.com/google/blueprint v0.0.0 => ../blueprint
-  github.com/google/go-cmp v0.5.5 => ../../external/go-cmp
-  prebuilts/bazel/common/proto/analysis_v2 => ../../prebuilts/bazel/common/proto/analysis_v2
-  prebuilts/bazel/common/proto/build => ../../prebuilts/bazel/common/proto/build
-)
-
-// Indirect deps from golang-protobuf
-exclude github.com/golang/protobuf v1.5.0
-
-go 2.0
diff --git a/go.work b/go.work
new file mode 100644
index 0000000..737a9df
--- /dev/null
+++ b/go.work
@@ -0,0 +1,19 @@
+go 1.19
+
+use (
+	.
+	../../external/go-cmp
+	../../external/golang-protobuf
+	../../prebuilts/bazel/common/proto/analysis_v2
+	../../prebuilts/bazel/common/proto/build
+	../blueprint
+)
+
+replace (
+	github.com/golang/protobuf v0.0.0 => ../../external/golang-protobuf
+	github.com/google/blueprint v0.0.0 => ../blueprint
+	github.com/google/go-cmp v0.0.0 => ../../external/go-cmp
+	google.golang.org/protobuf v0.0.0 => ../../external/golang-protobuf
+	prebuilts/bazel/common/proto/analysis_v2 v0.0.0 => ../../prebuilts/bazel/common/proto/analysis_v2
+	prebuilts/bazel/common/proto/build v0.0.0 => ../../prebuilts/bazel/common/proto/build
+)
diff --git a/java/aar.go b/java/aar.go
index f4a2ff2..60b0436 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -1031,7 +1031,7 @@
 	ctx.CreateBazelTargetModule(
 		bazel.BazelTargetModuleProperties{
 			Rule_class:        "aar_import",
-			Bzl_load_location: "@rules_android//rules:rules.bzl",
+			Bzl_load_location: "//build/bazel/rules/android:rules.bzl",
 		},
 		android.CommonAttributes{Name: name},
 		&bazelAndroidLibraryImport{
@@ -1057,7 +1057,7 @@
 	name := a.Name()
 	props := bazel.BazelTargetModuleProperties{
 		Rule_class:        "android_library",
-		Bzl_load_location: "@rules_android//rules:rules.bzl",
+		Bzl_load_location: "//build/bazel/rules/android:rules.bzl",
 	}
 
 	ctx.CreateBazelTargetModule(
diff --git a/java/app.go b/java/app.go
index 3c5760b..98c31bc 100755
--- a/java/app.go
+++ b/java/app.go
@@ -801,6 +801,8 @@
 						unstrippedFile: dep.UnstrippedOutputFile(),
 						partition:      dep.Partition(),
 					})
+				} else if ctx.Config().AllowMissingDependencies() {
+					ctx.AddMissingDependencies([]string{otherName})
 				} else {
 					ctx.ModuleErrorf("dependency %q missing output file", otherName)
 				}
@@ -1476,7 +1478,7 @@
 
 	props := bazel.BazelTargetModuleProperties{
 		Rule_class:        "android_app_certificate",
-		Bzl_load_location: "//build/bazel/rules/android:android_app_certificate.bzl",
+		Bzl_load_location: "//build/bazel/rules/android:rules.bzl",
 	}
 
 	ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: module.Name()}, attrs)
@@ -1515,7 +1517,7 @@
 
 	props := bazel.BazelTargetModuleProperties{
 		Rule_class:        "android_binary",
-		Bzl_load_location: "//build/bazel/rules/android:android_binary.bzl",
+		Bzl_load_location: "//build/bazel/rules/android:rules.bzl",
 	}
 	ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: a.Name()}, attrs)
 
diff --git a/java/app_test.go b/java/app_test.go
index cd88864..3fb67c1 100644
--- a/java/app_test.go
+++ b/java/app_test.go
@@ -3163,6 +3163,7 @@
 				variables.Platform_sdk_version = &platform_sdk_version
 				variables.Platform_sdk_codename = &platform_sdk_codename
 				variables.Platform_version_active_codenames = []string{platform_sdk_codename}
+				variables.Unbundled_build = proptools.BoolPtr(true)
 				variables.Unbundled_build_apps = []string{"sampleModule"}
 			}),
 		)
@@ -3241,6 +3242,7 @@
 				variables.Platform_sdk_final = &testCase.platform_sdk_final
 				variables.Platform_sdk_version = &platform_sdk_version
 				variables.Platform_sdk_codename = &platform_sdk_codename
+				variables.Unbundled_build = proptools.BoolPtr(true)
 				variables.Unbundled_build_apps = []string{"sampleModule"}
 			}),
 		)
@@ -3311,6 +3313,7 @@
 				variables.Platform_sdk_final = &testCase.platform_sdk_final
 				variables.Platform_sdk_version = &platform_sdk_version
 				variables.Platform_sdk_codename = &platform_sdk_codename
+				variables.Unbundled_build = proptools.BoolPtr(true)
 				variables.Unbundled_build_apps = []string{"sampleModule"}
 			}),
 		)
diff --git a/java/java.go b/java/java.go
index 3b0ad8d..cc74449 100644
--- a/java/java.go
+++ b/java/java.go
@@ -1623,8 +1623,8 @@
 func ApiLibraryFactory() android.Module {
 	module := &ApiLibrary{}
 	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
-	android.InitDefaultableModule(module)
 	module.AddProperties(&module.properties)
+	android.InitDefaultableModule(module)
 	return module
 }
 
@@ -2402,6 +2402,7 @@
 		&RuntimeResourceOverlayProperties{},
 		&LintProperties{},
 		&appTestHelperAppProperties{},
+		&JavaApiLibraryProperties{},
 	)
 
 	android.InitDefaultsModule(module)
@@ -2526,9 +2527,10 @@
 
 type javaCommonAttributes struct {
 	*javaResourcesAttributes
-	Srcs      bazel.LabelListAttribute
-	Plugins   bazel.LabelListAttribute
-	Javacopts bazel.StringListAttribute
+	Srcs        bazel.LabelListAttribute
+	Plugins     bazel.LabelListAttribute
+	Javacopts   bazel.StringListAttribute
+	Common_srcs bazel.LabelListAttribute
 }
 
 type javaDependencyLabels struct {
@@ -2714,10 +2716,9 @@
 
 type javaLibraryAttributes struct {
 	*javaCommonAttributes
-	Deps        bazel.LabelListAttribute
-	Exports     bazel.LabelListAttribute
-	Neverlink   bazel.BoolAttribute
-	Common_srcs bazel.LabelListAttribute
+	Deps      bazel.LabelListAttribute
+	Exports   bazel.LabelListAttribute
+	Neverlink bazel.BoolAttribute
 }
 
 func javaLibraryBp2Build(ctx android.TopDownMutatorContext, m *Library) {
@@ -2751,7 +2752,7 @@
 			Bzl_load_location: "//build/bazel/rules/java:library.bzl",
 		}
 	} else {
-		attrs.Common_srcs = bazel.MakeLabelListAttribute(android.BazelLabelForModuleSrc(ctx, m.properties.Common_srcs))
+		attrs.javaCommonAttributes.Common_srcs = bazel.MakeLabelListAttribute(android.BazelLabelForModuleSrc(ctx, m.properties.Common_srcs))
 
 		props = bazel.BazelTargetModuleProperties{
 			Rule_class:        "kt_jvm_library",
@@ -2807,14 +2808,8 @@
 		mainClass = mainClassInManifest
 	}
 
-	attrs := &javaBinaryHostAttributes{
-		javaCommonAttributes: commonAttrs,
-		Deps:                 deps,
-		Runtime_deps:         runtimeDeps,
-		Main_class:           mainClass,
-	}
-
 	// Attribute jvm_flags
+	var jvmFlags bazel.StringListAttribute
 	if m.binaryProperties.Jni_libs != nil {
 		jniLibPackages := map[string]bool{}
 		for _, jniLibLabel := range android.BazelLabelForModuleDeps(ctx, m.binaryProperties.Jni_libs).Includes {
@@ -2837,12 +2832,56 @@
 			// See cs/f:.*/third_party/bazel/.*java_stub_template.txt for the use of RUNPATH
 			jniLibPaths = append(jniLibPaths, "$${RUNPATH}"+jniLibPackage)
 		}
-		attrs.Jvm_flags = bazel.MakeStringListAttribute([]string{"-Djava.library.path=" + strings.Join(jniLibPaths, ":")})
+		jvmFlags = bazel.MakeStringListAttribute([]string{"-Djava.library.path=" + strings.Join(jniLibPaths, ":")})
 	}
 
 	props := bazel.BazelTargetModuleProperties{
 		Rule_class: "java_binary",
 	}
+	attrs := &javaBinaryHostAttributes{
+		Runtime_deps: runtimeDeps,
+		Main_class:   mainClass,
+		Jvm_flags:    jvmFlags,
+	}
+
+	if !bp2BuildInfo.hasKotlinSrcs && len(m.properties.Common_srcs) == 0 {
+		attrs.javaCommonAttributes = commonAttrs
+		attrs.Deps = deps
+	} else {
+		ktName := m.Name() + "_kt"
+		ktProps := bazel.BazelTargetModuleProperties{
+			Rule_class:        "kt_jvm_library",
+			Bzl_load_location: "@rules_kotlin//kotlin:jvm_library.bzl",
+		}
+		ktAttrs := &javaLibraryAttributes{
+			Deps: deps,
+			javaCommonAttributes: &javaCommonAttributes{
+				Srcs:      commonAttrs.Srcs,
+				Plugins:   commonAttrs.Plugins,
+				Javacopts: commonAttrs.Javacopts,
+			},
+		}
+
+		if len(m.properties.Common_srcs) != 0 {
+			ktAttrs.javaCommonAttributes.Common_srcs = bazel.MakeLabelListAttribute(android.BazelLabelForModuleSrc(ctx, m.properties.Common_srcs))
+		}
+
+		// kt_jvm_library does not support resource_strip_prefix, if this attribute
+		// is set, than javaResourcesAttributes needs to be set in the
+		// javaCommonAttributes of the java_binary target
+		if commonAttrs.javaResourcesAttributes != nil {
+			if commonAttrs.javaResourcesAttributes.Resource_strip_prefix != nil {
+				attrs.javaCommonAttributes = &javaCommonAttributes{
+					javaResourcesAttributes: commonAttrs.javaResourcesAttributes,
+				}
+			} else {
+				ktAttrs.javaCommonAttributes.javaResourcesAttributes = commonAttrs.javaResourcesAttributes
+			}
+		}
+
+		ctx.CreateBazelTargetModule(ktProps, android.CommonAttributes{Name: ktName}, ktAttrs)
+		attrs.Runtime_deps.Add(&bazel.LabelAttribute{Value: &bazel.Label{Label: ":" + ktName}})
+	}
 
 	// Create the BazelTargetModule.
 	ctx.CreateBazelTargetModule(props, android.CommonAttributes{Name: m.Name()}, attrs)
diff --git a/java/java_test.go b/java/java_test.go
index 085f627..49adefb 100644
--- a/java/java_test.go
+++ b/java/java_test.go
@@ -1894,6 +1894,94 @@
 	}
 }
 
+func TestJavaApiLibraryAndDefaultsLink(t *testing.T) {
+	provider_bp_a := `java_api_contribution {
+		name: "foo1",
+		api_file: "foo1.txt",
+	}
+	`
+	provider_bp_b := `java_api_contribution {
+		name: "foo2",
+		api_file: "foo2.txt",
+	}
+	`
+	provider_bp_c := `java_api_contribution {
+		name: "foo3",
+		api_file: "foo3.txt",
+	}
+	`
+	provider_bp_d := `java_api_contribution {
+		name: "foo4",
+		api_file: "foo4.txt",
+	}
+	`
+	ctx, _ := testJavaWithFS(t, `
+		java_defaults {
+			name: "baz1",
+			api_surface: "public",
+			api_contributions: ["foo1", "foo2"],
+		}
+
+		java_defaults {
+			name: "baz2",
+			api_surface: "system",
+			api_contributions: ["foo3"],
+		}
+
+		java_api_library {
+			name: "bar1",
+			api_surface: "public",
+			api_contributions: ["foo1"],
+		}
+
+		java_api_library {
+			name: "bar2",
+			api_surface: "public",
+			defaults:["baz1"],
+		}
+
+		java_api_library {
+			name: "bar3",
+			api_surface: "system",
+			defaults:["baz1", "baz2"],
+			api_contributions: ["foo4"],
+			api_files: ["api1/current.txt", "api2/current.txt"]
+		}
+		`,
+		map[string][]byte{
+			"a/Android.bp": []byte(provider_bp_a),
+			"b/Android.bp": []byte(provider_bp_b),
+			"c/Android.bp": []byte(provider_bp_c),
+			"d/Android.bp": []byte(provider_bp_d),
+		})
+
+	testcases := []struct {
+		moduleName         string
+		sourceTextFileDirs []string
+	}{
+		{
+			moduleName:         "bar1",
+			sourceTextFileDirs: []string{"a/foo1.txt"},
+		},
+		{
+			moduleName:         "bar2",
+			sourceTextFileDirs: []string{"a/foo1.txt", "b/foo2.txt"},
+		},
+		{
+			moduleName:         "bar3",
+			sourceTextFileDirs: []string{"c/foo3.txt", "a/foo1.txt", "b/foo2.txt", "d/foo4.txt", "api1/current.txt", "api2/current.txt"},
+		},
+	}
+	for _, c := range testcases {
+		m := ctx.ModuleForTests(c.moduleName, "android_common")
+		manifest := m.Output("metalava.sbox.textproto")
+		sboxProto := android.RuleBuilderSboxProtoForTests(t, manifest)
+		manifestCommand := sboxProto.Commands[0].GetCommand()
+		sourceFilesFlag := "--source-files " + strings.Join(c.sourceTextFileDirs, " ")
+		android.AssertStringDoesContain(t, "source text files not present", manifestCommand, sourceFilesFlag)
+	}
+}
+
 func TestJavaApiLibraryJarGeneration(t *testing.T) {
 	provider_bp_a := `
 	java_api_contribution {
diff --git a/rust/compiler.go b/rust/compiler.go
index 6055158..8ec42f0 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -15,6 +15,7 @@
 package rust
 
 import (
+	"android/soong/cc"
 	"fmt"
 	"path/filepath"
 	"strings"
@@ -307,19 +308,7 @@
 	flags.EmitXrefs = ctx.Config().EmitXrefRules()
 
 	if ctx.Host() && !ctx.Windows() {
-		rpathPrefix := `\$$ORIGIN/`
-		if ctx.Darwin() {
-			rpathPrefix = "@loader_path/"
-		}
-
-		var rpath string
-		if ctx.toolchain().Is64Bit() {
-			rpath = "lib64"
-		} else {
-			rpath = "lib"
-		}
-		flags.LinkFlags = append(flags.LinkFlags, "-Wl,-rpath,"+rpathPrefix+rpath)
-		flags.LinkFlags = append(flags.LinkFlags, "-Wl,-rpath,"+rpathPrefix+"../"+rpath)
+		flags.LinkFlags = append(flags.LinkFlags, cc.RpathFlags(ctx)...)
 	}
 
 	return flags
diff --git a/rust/test.go b/rust/test.go
index 4f922b4..4b5296e 100644
--- a/rust/test.go
+++ b/rust/test.go
@@ -200,6 +200,7 @@
 	if ctx.Device() {
 		flags.RustFlags = append(flags.RustFlags, "-Z panic_abort_tests")
 	}
+
 	return flags
 }
 
diff --git a/scripts/conv_linker_config.py b/scripts/conv_linker_config.py
index e46efe4..3d7c0fa 100644
--- a/scripts/conv_linker_config.py
+++ b/scripts/conv_linker_config.py
@@ -27,13 +27,15 @@
 
 
 def Proto(args):
-    json_content = ''
-    with open(args.source) as f:
-        for line in f:
-            if not line.lstrip().startswith('//'):
-                json_content += line
-    obj = json.loads(json_content, object_pairs_hook=collections.OrderedDict)
-    pb = ParseDict(obj, linker_config_pb2.LinkerConfig())
+    pb = linker_config_pb2.LinkerConfig()
+    for input in args.source.split(':'):
+        json_content = ''
+        with open(input) as f:
+            for line in f:
+                if not line.lstrip().startswith('//'):
+                    json_content += line
+        obj = json.loads(json_content, object_pairs_hook=collections.OrderedDict)
+        ParseDict(obj, pb)
     with open(args.output, 'wb') as f:
         f.write(pb.SerializeToString())
 
@@ -104,7 +106,7 @@
         '--source',
         required=True,
         type=str,
-        help='Source linker configuration file in JSON.')
+        help='Colon-separated list of linker configuration files in JSON.')
     parser_proto.add_argument(
         '-o',
         '--output',
diff --git a/tests/apex_comparison_tests.sh b/tests/apex_comparison_tests.sh
index 412f84a..5007078 100755
--- a/tests/apex_comparison_tests.sh
+++ b/tests/apex_comparison_tests.sh
@@ -74,7 +74,7 @@
 # # Build debugfs separately, as it's not a dep of apexer, but needs to be an explicit arg.
 call_bazel build --config=bp2build --config=linux_x86_64 //external/e2fsprogs/debugfs //system/apex/tools:deapexer
 DEBUGFS_PATH="$(realpath $(call_bazel cquery --config=bp2build --config=linux_x86_64 --config=ci --output=files //external/e2fsprogs/debugfs))"
-DEAPEXER="$(realpath $(call_bazel cquery --config=bp2build --config=linux_x86_64 --config=ci --output=files //system/apex/tools:deapexer))"
+DEAPEXER="bazel-bin/system/apex/tools/deapexer"
 DEAPEXER="$DEAPEXER --debugfs_path=$DEBUGFS_PATH"
 
 #######
diff --git a/tests/bp2build_bazel_test.sh b/tests/bp2build_bazel_test.sh
index 8c2ce48..6477dac 100755
--- a/tests/bp2build_bazel_test.sh
+++ b/tests/bp2build_bazel_test.sh
@@ -231,4 +231,11 @@
   fi
 }
 
+# Smoke test to verify api_bp2build worksapce does not contain any errors
+function test_api_bp2build_empty_build() {
+  setup
+  run_soong api_bp2build
+  run_bazel build --config=android --config=api_bp2build //:empty
+}
+
 scan_and_run_tests