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|
#####################
# #
# FoolOS Makefile #
# #
#####################
#improve implicit rules
#lets use the size of a 1.44 floppy for a start for our boot img
IMAGE_SIZE=1474560
#font data starts at sector 50
FONT_DATA_START=25600
#data starts at 0x8000
#DATA_START=32768
SOURCES=$(wildcard ./kernel/*.c)
SOURCES+=$(wildcard ./lib/*/*.c)
ASMSOURCES=$(wildcard ./asm/*.asm)
OBJECTS=$(patsubst %.c, %.o, $(SOURCES))
ASMOBJECTS=$(patsubst %.asm, %.o, $(ASMSOURCES))
MBR=./boot/mbr.bin
KERNEL_ENTRY=./boot/kernel_entry.o
FILLUP=./data/fill.bin
CFLAGS=-ffreestanding -std=gnu99 -m32 -fno-asynchronous-unwind-tables -O0
#default target
#final image
all: FoolOS.img
# some implicit rule patterns for aseembling (elf and binary)
%.o: %.asm
nasm -f elf $^ -o $@
%.bin: %.asm
nasm -f bin $^ -o $@
# explicit rule to create fool-font data binary
binfont.bin: data/binfont.src
python tools/binarize.py $< $@
#assembling of final image
FoolOS.img: Fool.img FoolData.img $(FILLUP)
cat $^ | head -c $(IMAGE_SIZE) > $@
Fool.img: $(MBR) kernel.bin $(FILLUP)
cat $^ | head -c $(FONT_DATA_START) > $@
FoolData.img: binfont.bin
cat $^ > $@
# kernel_entry.o needs to be FIRST!!
kernel.bin: $(KERNEL_ENTRY) $(ASMOBJECTS) $(OBJECTS)
ld -o $@ -Ttext 0x1000 --oformat binary -melf_i386 $^ -O0
##### cleanup #####
clean:
-rm *.bin *.img bochs.log $(KERNEL_ENTRY) $(ASMOBJECTS) $(OBJECTS) $(FILLUP) $(MBR)
###### virtual machine stuff ######
# dump from vbox
#dump: FoolOS.img
# vboxmanage debugvm FoolOs dumpguestcore --filename dump.elf
# xxd dump.elf > dump.xxd
# run in our local bochs
run: FoolOS.img
~/opt/bochs-2.6.6/bochs -q
.PHONY: all clean
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