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include Makefile.config
include ../arch/$(ARCH)/Makefile.inc

sources=cpu/cpu.c \
    main/main.c \
    main/kinit.c \
    main/uinit.c \
    proc/scheduler.c \
    proc/thread.c \
    proc/task.c \
    mm/heap.c \
    mm/frame.c \
    mm/page.c \
    mm/tlb.c \
    mm/vm.c \
    lib/func.c \
    lib/list.c \
    lib/memstr.c \
    lib/the.c \
    debug/print.c \
    debug/symtab.c \
    time/clock.c \
    time/timeout.c \
    time/delay.c \
    preempt/preemption.c \
    synch/spinlock.c \
    synch/condvar.c \
    synch/rwlock.c \
    synch/mutex.c \
    synch/semaphore.c \
    synch/waitq.c \
    smp/ipi.c \
    fb/font-8x16.c

# CFLAGS options same for all targets
CFLAGS+=-nostdinc -I../include -Werror-implicit-function-declaration -Wmissing-prototypes -Werror

ifdef DEBUG_SPINLOCK
CFLAGS+=-D$(DEBUG_SPINLOCK)
endif

ifdef USERSPACE
CFLAGS+=-D$(USERSPACE)
endif

ifdef TEST
test_objects:=$(addsuffix .o,$(basename ../test/$(TEST_DIR)/$(TEST_FILE)))
CFLAGS+=-D$(TEST)
endif
arch_objects:=$(addsuffix .o,$(basename $(arch_sources)))
objects:=$(addsuffix .o,$(basename $(sources)))

.PHONY : all config depend build clean dist-clean boot

all: dist-clean config depend build

-include Makefile.depend

config:
    find . ../include -name arch -type l -exec rm \{\} \;
    ln -s ../arch/$(ARCH)/src arch
    ln -s ../arch/$(ARCH)/include ../include/arch

depend:
    $(CC) $(CFLAGS) -M $(arch_sources) $(sources) >Makefile.depend

build: kernel.bin boot

clean:
    find . ../arch/$(ARCH)/src ../test -name '*.o' -exec rm \{\} \;
    -rm *.bin kernel.map kernel.map.pre kernel.objdump debug/real_map.bin
    $(MAKE) -C ../arch/$(ARCH)/boot clean

dist-clean:
    find . ../include -name arch -type l -exec rm \{\} \;
    -rm Makefile.depend
    -$(MAKE) clean

debug/real_map.bin: $(arch_objects) $(objects) $(test_objects) ../arch/$(ARCH)/_link.ld 
    $(OBJCOPY) -I binary -O $(BFD_NAME) -B $(BFD_ARCH) --prefix-sections=symtab Makefile debug/empty_map.o
    $(LD) -T ../arch/$(ARCH)/_link.ld $(LFLAGS) $(arch_objects) $(objects) $(test_objects) debug/empty_map.o -o $@ -Map kernel.map.pre
    $(OBJDUMP) -t $(arch_objects) $(objects) $(test_objects) > kernel.objdump
    ../tools/genmap.py kernel.map.pre kernel.objdump debug/real_map.bin 

debug/real_map.o: debug/real_map.bin
    $(OBJCOPY) -I binary -O $(BFD_NAME) -B $(BFD_ARCH) --prefix-sections=symtab $< $@


kernel.bin: $(arch_objects) $(objects) $(test_objects) ../arch/$(ARCH)/_link.ld debug/real_map.o
    $(LD) -T ../arch/$(ARCH)/_link.ld $(LFLAGS) $(arch_objects) $(objects) $(test_objects) debug/real_map.o -o $@ -Map kernel.map

%.o: %.S
    $(CC) $(ASFLAGS) $(CFLAGS) -c $< -o $@

%.o: %.s
    $(AS) $(ASFLAGS) $< -o $@

%.o: %.c
    $(CC) $(CFLAGS) -c $< -o $@

KS=`cat kernel.bin | wc -c`

boot:
    $(MAKE) -C ../arch/$(ARCH)/boot build KERNEL_SIZE=$(KS)