1 csrc = $(wildcard src/*.c) $(wildcard src/libc/*.c) $(wildcard src/test/*.c)
2 ssrc = $(wildcard src/*.s) $(wildcard src/libc/*.s) $(wildcard src/boot/*.s) $(wildcard src/test/*.s)
3 Ssrc = $(wildcard src/*.S)
4 obj = $(csrc:.c=.o) $(ssrc:.s=.o) $(Ssrc:.S=.o)
12 inc = -Isrc -Isrc/libc -Isrc/test
13 gccopt = -fno-pic -ffreestanding -nostdinc -fno-builtin
15 CFLAGS = $(ccarch) -march=i386 $(warn) $(opt) $(dbg) $(gccopt) $(inc) $(def)
16 ASFLAGS = $(asarch) -march=i386 $(dbg) -nostdinc -fno-builtin $(inc)
17 LDFLAGS = $(ldarch) -nostdlib -T pcboot.ld -print-gc-sections
19 QEMU_FLAGS = -fda floppy.img -serial file:serial.log -soundhw sb16
21 ifneq ($(shell uname -m), i386)
28 dd if=/dev/zero of=$@ bs=512 count=2880
29 dd if=$< of=$@ conv=notrunc
31 pcboot.iso: floppy.img
33 git archive --format=tar --prefix=cdrom/ HEAD | tar xf -
35 mkisofs -o $@ -R -J -V pcboot -b $< cdrom
38 boot.img: bootldr.bin $(bin)
39 cat bootldr.bin $(bin) >$@
41 # bootldr.bin will contain only .boot and .boot2
43 objcopy -O binary -j '.boot*' $< $@
45 # the main binary will contain every section *except* .boot and .boot2
47 objcopy -O binary -R '.boot*' $< $@
50 $(LD) -o $@ $(obj) -Map link.map $(LDFLAGS)
53 $(CC) -o $@ $(CFLAGS) -c $<
58 @$(CPP) $(CFLAGS) $< -MM -MT $(@:.d=.o) >$@
62 rm -f $(obj) $(bin) boot.img floppy.img link.map
69 disasm: bootldr.disasm $(elf).disasm
71 bootldr.disasm: $(elf)
72 objdump -d $< -j .boot -j .boot2 -m i8086 >$@
75 objdump -d $< -j .startup -j .text -m i386 >$@
78 objcopy --only-keep-debug $< $@
82 qemu-system-i386 $(QEMU_FLAGS)
85 debug: $(bin) $(elf).sym
86 qemu-system-i386 $(QEMU_FLAGS) -s -S