001 CC=gcc
002 CFLAGS = -Wall -nostdlib -nostdinc -ffreestanding -DKERNEL_SOS
003 LDFLAGS = --warn-common
004 OBJECTS = bootstrap/multiboot.o \
005 hwcore/idt.o hwcore/gdt.o \
006 hwcore/exception.o hwcore/exception_wrappers.o \
007 hwcore/irq.o hwcore/irq_wrappers.o hwcore/i8259.o \
008 hwcore/paging.o \
009 hwcore/i8254.o drivers/x86_videomem.o drivers/bochs.o \
010 sos/physmem.o sos/klibc.o sos/main.o
011
012 KERNEL_OBJ = sos.elf
013 MULTIBOOT_IMAGE = fd.img
014 PWD := $(shell pwd)
015
016
017 all: $(MULTIBOOT_IMAGE)
018
019 $(MULTIBOOT_IMAGE): $(KERNEL_OBJ)
020 ./support/build_image.sh $@ $<
021
022 $(KERNEL_OBJ): $(OBJECTS) ./support/sos.lds
023 $(LD) $(LDFLAGS) -T ./support/sos.lds -o $@ $(OBJECTS)
024 -nm -C $@ | cut -d ' ' -f 1,3 > sos.map
025
026 -include .mkvars
027
028 # Create objects from C source code
029 %.o: %.c
030 $(CC) -I$(PWD) -c $< $(CFLAGS) -o $@
031
032
033 %.o: %.S
034 $(CC) -I$(PWD) -c $< $(CFLAGS) -DASM_SOURCE=1 -o $@
035
036
037 clean:
038 $(RM) *.img *.o mtoolsrc *~ menu.txt *.img *.elf *.bin *.map
039 $(RM) *.log *.out bochs*
040 $(RM) bootstrap/*.o bootstrap/*~
041 $(RM) drivers/*.o drivers/*~
042 $(RM) hwcore/*.o hwcore/*~
043 $(RM) sos/*.o sos/*~
044 $(RM) support/*~
045 $(RM) extra/*~