diff --git a/cc/cc.go b/cc/cc.go
index d04485d..640c552 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -35,11 +35,11 @@
 
 	android.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
 		ctx.BottomUp("image", imageMutator).Parallel()
-		ctx.BottomUp("link", linkageMutator).Parallel()
+		ctx.BottomUp("link", LinkageMutator).Parallel()
 		ctx.BottomUp("vndk", vndkMutator).Parallel()
 		ctx.BottomUp("ndk_api", ndkApiMutator).Parallel()
 		ctx.BottomUp("test_per_src", testPerSrcMutator).Parallel()
-		ctx.BottomUp("begin", beginMutator).Parallel()
+		ctx.BottomUp("begin", BeginMutator).Parallel()
 	})
 
 	android.PostDepsMutators(func(ctx android.RegisterMutatorsContext) {
@@ -1093,7 +1093,7 @@
 	}
 }
 
-func beginMutator(ctx android.BottomUpMutatorContext) {
+func BeginMutator(ctx android.BottomUpMutatorContext) {
 	if c, ok := ctx.Module().(*Module); ok && c.Enabled() {
 		c.beginMutator(ctx)
 	}
diff --git a/cc/cc_test.go b/cc/cc_test.go
index 01beb66..bca26ea 100644
--- a/cc/cc_test.go
+++ b/cc/cc_test.go
@@ -56,17 +56,17 @@
 	ctx.RegisterModuleType("cc_library", android.ModuleFactoryAdaptor(LibraryFactory))
 	ctx.RegisterModuleType("cc_library_shared", android.ModuleFactoryAdaptor(LibrarySharedFactory))
 	ctx.RegisterModuleType("cc_library_headers", android.ModuleFactoryAdaptor(LibraryHeaderFactory))
-	ctx.RegisterModuleType("toolchain_library", android.ModuleFactoryAdaptor(toolchainLibraryFactory))
+	ctx.RegisterModuleType("toolchain_library", android.ModuleFactoryAdaptor(ToolchainLibraryFactory))
 	ctx.RegisterModuleType("llndk_library", android.ModuleFactoryAdaptor(llndkLibraryFactory))
 	ctx.RegisterModuleType("llndk_headers", android.ModuleFactoryAdaptor(llndkHeadersFactory))
 	ctx.RegisterModuleType("vendor_public_library", android.ModuleFactoryAdaptor(vendorPublicLibraryFactory))
-	ctx.RegisterModuleType("cc_object", android.ModuleFactoryAdaptor(objectFactory))
+	ctx.RegisterModuleType("cc_object", android.ModuleFactoryAdaptor(ObjectFactory))
 	ctx.RegisterModuleType("filegroup", android.ModuleFactoryAdaptor(android.FileGroupFactory))
 	ctx.PreDepsMutators(func(ctx android.RegisterMutatorsContext) {
 		ctx.BottomUp("image", imageMutator).Parallel()
-		ctx.BottomUp("link", linkageMutator).Parallel()
+		ctx.BottomUp("link", LinkageMutator).Parallel()
 		ctx.BottomUp("vndk", vndkMutator).Parallel()
-		ctx.BottomUp("begin", beginMutator).Parallel()
+		ctx.BottomUp("begin", BeginMutator).Parallel()
 	})
 	ctx.Register()
 
diff --git a/cc/library.go b/cc/library.go
index 0e45af9..4f9b5b2 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -821,7 +821,7 @@
 	}
 }
 
-func linkageMutator(mctx android.BottomUpMutatorContext) {
+func LinkageMutator(mctx android.BottomUpMutatorContext) {
 	if m, ok := mctx.Module().(*Module); ok && m.linker != nil {
 		if library, ok := m.linker.(libraryInterface); ok {
 			var modules []blueprint.Module
diff --git a/cc/ndk_library.go b/cc/ndk_library.go
index 2709a89..63d9f29 100644
--- a/cc/ndk_library.go
+++ b/cc/ndk_library.go
@@ -61,7 +61,7 @@
 	// These libraries have migrated over to the new ndk_library, which is added
 	// as a variation dependency via depsMutator.
 	ndkMigratedLibs     = []string{}
-	ndkMigratedLibsLock sync.Mutex // protects ndkMigratedLibs writes during parallel beginMutator
+	ndkMigratedLibsLock sync.Mutex // protects ndkMigratedLibs writes during parallel BeginMutator
 )
 
 // Creates a stub shared library based on the provided version file.
diff --git a/cc/object.go b/cc/object.go
index 7c134ac..2577195 100644
--- a/cc/object.go
+++ b/cc/object.go
@@ -25,7 +25,7 @@
 //
 
 func init() {
-	android.RegisterModuleType("cc_object", objectFactory)
+	android.RegisterModuleType("cc_object", ObjectFactory)
 }
 
 type objectLinker struct {
@@ -33,7 +33,7 @@
 	Properties ObjectLinkerProperties
 }
 
-func objectFactory() android.Module {
+func ObjectFactory() android.Module {
 	module := newBaseModule(android.HostAndDeviceSupported, android.MultilibBoth)
 	module.linker = &objectLinker{
 		baseLinker: NewBaseLinker(nil),
diff --git a/cc/toolchain_library.go b/cc/toolchain_library.go
index 20b0f85..742d1c1 100644
--- a/cc/toolchain_library.go
+++ b/cc/toolchain_library.go
@@ -23,7 +23,7 @@
 //
 
 func init() {
-	android.RegisterModuleType("toolchain_library", toolchainLibraryFactory)
+	android.RegisterModuleType("toolchain_library", ToolchainLibraryFactory)
 }
 
 type toolchainLibraryProperties struct {
@@ -48,7 +48,7 @@
 	return append(props, &library.Properties)
 }
 
-func toolchainLibraryFactory() android.Module {
+func ToolchainLibraryFactory() android.Module {
 	module, library := NewLibrary(android.HostAndDeviceSupported)
 	library.BuildOnlyStatic()
 	toolchainLibrary := &toolchainLibraryDecorator{