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