v4.19.13 snapshot.
diff --git a/drivers/android/Makefile b/drivers/android/Makefile
new file mode 100644
index 0000000..a01254c
--- /dev/null
+++ b/drivers/android/Makefile
@@ -0,0 +1,4 @@
+ccflags-y += -I$(src)			# needed for trace events
+
+obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o binder_alloc.o
+obj-$(CONFIG_ANDROID_BINDER_IPC_SELFTEST) += binder_alloc_selftest.o