v4.19.13 snapshot.
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
new file mode 100644
index 0000000..a0ab9ab
--- /dev/null
+++ b/arch/x86/include/asm/Kbuild
@@ -0,0 +1,13 @@
+
+
+generated-y += syscalls_32.h
+generated-y += syscalls_64.h
+generated-y += unistd_32_ia32.h
+generated-y += unistd_64_x32.h
+generated-y += xen-hypercalls.h
+
+generic-y += dma-contiguous.h
+generic-y += early_ioremap.h
+generic-y += export.h
+generic-y += mcs_spinlock.h
+generic-y += mm-arch-hooks.h