-OBJ = $(addprefix arch/$(ARCHDIR)/,$(A_OBJ))
-OBJ += heap.o messages.o debug.o modules.o lib.o syscalls.o system.o threads.o drvutil.o
+ifeq ($(AS_SUFFIX),)
+ AS_SUFFIX = S
+endif
+
+BUILDINFO_OBJ := $(OBJDIR)buildinfo.o$(OBJSUFFIX)
+BUILDINFO_SRC := $(OBJDIR)buildinfo.c$(OBJSUFFIX)
+
+OBJ := $(addprefix arch/$(ARCHDIR)/,$(A_OBJ))
+OBJ += heap.o drvutil.o logging.o debug.o lib.o adt.o time.o
+OBJ += messages.o modules.o syscalls.o system.o
+OBJ += threads.o mutex.o semaphore.o
+OBJ += drv/vterm.o drv/proc.o drv/fifo.o drv/iocache.o drv/pci.o