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|
SHELL:=/bin/bash
override CFLAGS += \
-nostdlib \
-nostdinc \
-fno-builtin \
-fno-stack-protector \
-mno-red-zone \
-nostartfiles \
-nodefaultlibs \
-Wall \
-Wextra
override LDFLAGS += --no-warn-rwx-segment
ifneq "$(DEBUG)" "0"
override CFLAGS += -g -fno-omit-frame-pointer -DDEBUG
override LDFLAGS += -g
override NASMFLAGS_KERNEL += -g
endif
STAGE3_C = \
stage3/init.o \
stage3/main.o \
stage3/gfx.o \
stage3/halt.o \
stage3/interrupts.o \
stage3/pic.o \
stage3/clock.o \
stage3/memory.o \
stage3/heap.o \
stage3/font.o \
stage3/font_classic.o \
stage3/ata.o \
stage3/string.o \
stage3/pci.o \
stage3/fs.o \
stage3/ps2.o \
stage3/thread.o \
stage3/shell.o \
stage3/version.o \
stage3/rng.o \
stage3/cheese3d.o \
stage3/cheese_demo.o \
stage3/debug.o
STAGE3 = $(STAGE3_C) \
stage3/isr.o \
stage3/yield.o \
stage3/watchdog.o
PAD_BOUNDARY = pad() { truncate -s $$(echo "($$(du -b $$1 | cut -f1)+$$2-1)/$$2*$$2" | bc) $$1; }; pad
DISAS = objdump -D -M intel -j .text stage3.elf
cuddles.img: stage1.bin stage23.bin fs.tar
cat stage{1,23}.bin fs.tar > cuddles.img
$(PAD_BOUNDARY) cuddles.img 1048576
stage1.bin: stage1/main.asm stage1/print.asm stage23.bin
nasm $(NASMFLAGS_BOOT) -f bin stage1/main.asm -o stage1.bin \
-dKSIZE=$$(du -cb stage23.bin | tail -n1 | cut -f1)
stage23.bin: stage2.bin stage3.elf
cat stage2.bin stage3.elf > stage23.bin
$(PAD_BOUNDARY) stage23.bin 512
stage2.bin: stage2/main.asm stage2/mmap.asm stage2/paging.asm stage2/vesa.asm stage1/print.asm
nasm $(NASMFLAGS_BOOT) -f bin stage2/main.asm -o stage2.bin
stage3.elf: $(STAGE3) stage3.ld
ld $(LDFLAGS) $(STAGE3) -T stage3.ld -o stage3.elf
fs/dbg/kernel.dis.asm: stage3.elf
mkdir -p fs/dbg/
$(DISAS) > fs/dbg/kernel.dis.asm
stage3/%.o: stage3/%.asm
nasm $(NASMFLAGS_KERNEL) -f elf64 $< -o $@
stage3/interrupts.o: stage3/interrupts.c
gcc $(CFLAGS) -MMD -mgeneral-regs-only -c $< -o $@
stage3/pic.o: stage3/pic.c
gcc $(CFLAGS) -MMD -mgeneral-regs-only -c $< -o $@
stage3/init.o: stage3/init.c
gcc $(CFLAGS) -MMD -mgeneral-regs-only -c $< -o $@
stage3/%.o: stage3/%.c
gcc $(CFLAGS) -MMD -c $< -o $@
-include $(STAGE3_C:%.o=%.d)
GIT_VERSION := $(shell git describe --tags 2>/dev/null || git rev-parse --short HEAD)
.version-$(GIT_VERSION):
rm -f .version-*
touch $@
stage3/version.c: .version-$(GIT_VERSION)
echo -e "#include \"def.h\"\nstr version = S(\"$(GIT_VERSION)\");" > $@
stage3/%.asm: stage3/%.lua
lua $< > $@
stage3/font.c: stage3/font_builtin.c
stage3/font_builtin.c: fs/fonts/ter-u16n.cuddlefont
xxd -i $< > $@
fs.tar: $(shell find fs | sed 's/ /\\ /g') fs/dbg/kernel.dis.asm
cd fs && tar --format=ustar -cf ../fs.tar *
.PHONY: run clean flash disas qemu bochs
bochs: cuddles.img
rm -f cuddles.img.lock
echo c | bochs -q
# to qemu slow: make QFLAGS="-icount shift=9,align=on,sleep=on" run
# try QFLAGS="-enable-kvm" for better performance
override QFLAGS += -drive format=raw,file=cuddles.img
qemu: cuddles.img
qemu-system-x86_64 $(QFLAGS)
run: qemu
clean:
rm -rf .version-* stage3/*.{o,d} *.bin *.img stage3/{isr.asm,version.c,font_builtin.c} fs.tar fs/dbg
flash: cuddles.img
dd if=cuddles.img of=$(DEV)
disas: stage3.elf
$(DISAS) --disassembler-color=on
|
