1 csrc = $(wildcard src/*.c) $(wildcard src/libc/*.c) $(wildcard src/census/*.c)
2 ssrc = $(wildcard src/*.s) $(wildcard src/libc/*.s) $(wildcard src/boot/*.s) $(wildcard src/census/*.s)
3 Ssrc = $(wildcard src/*.S)
4 obj = $(csrc:.c=.o) $(ssrc:.s=.o) $(Ssrc:.S=.o)
12 inc = -Isrc -Isrc/libc
13 gccopt = -fno-pic -ffreestanding -nostdinc -fno-builtin -ffast-math
15 CFLAGS = $(ccarch) -march=i386 $(warn) $(opt) $(dbg) $(gccopt) $(inc) $(def)
16 ASFLAGS = $(asarch) -march=i386 $(dbg) -nostdinc -fno-builtin $(inc)
17 LDFLAGS = $(ldarch) -nostdlib -T pcboot.ld -print-gc-sections
19 #QEMU_FLAGS = -fda floppy.img -serial file:serial.log -soundhw sb16
20 QEMU_FLAGS = -hda disk.img -serial file:serial.log -soundhw sb16
22 ifneq ($(shell uname -m), i386)
29 all: disk.img #floppy.img
31 disk.img: boot.img blank.img
33 @echo - patching pcboot onto the blank disk image ...
35 dd if=boot.img of=$@ bs=512 status=none conv=notrunc
36 dd if=blank.img of=$@ bs=1 seek=440 skip=440 count=70 status=none conv=notrunc
40 @echo - generating blank disk image with FAT partition ...
41 dd if=/dev/zero of=part.img bs=1024 count=63488
42 mkfs -t vfat -n PCBOOT part.img
43 dd if=/dev/zero of=$@ bs=1024 count=65536
44 echo start=2048 type=c | sfdisk $@
45 dd if=part.img of=$@ bs=512 seek=2048 conv=notrunc
49 dd if=/dev/zero of=$@ bs=512 count=2880
50 dd if=$< of=$@ conv=notrunc
52 pcboot.iso: floppy.img
54 git archive --format=tar --prefix=cdrom/ HEAD | tar xf -
56 mkisofs -o $@ -R -J -V pcboot -b $< cdrom
59 boot.img: bootldr.bin $(bin)
60 cat bootldr.bin $(bin) >$@
62 # bootldr.bin will contain .boot, .boot2, .bootend, and .lowtext
64 objcopy -O binary -j '.boot*' -j .lowtext $< $@
66 # the main binary will contain every section *except* those
68 objcopy -O binary -R '.boot*' -R .lowtext $< $@
71 $(LD) -o $@ $(obj) -Map link.map $(LDFLAGS)
74 $(CC) -o $@ $(CFLAGS) -c $<
79 @$(CPP) $(CFLAGS) $< -MM -MT $(@:.d=.o) >$@
83 rm -f $(obj) $(bin) boot.img floppy.img disk.img link.map
90 disasm: bootldr.disasm $(elf).disasm
92 bootldr.disasm: $(elf)
93 objdump -d $< -j .boot -j .boot2 -j .lowtext -m i8086 >$@
96 objdump -d $< -j .startup -j .text -j .lowtext -m i386 >$@
99 objcopy --only-keep-debug $< $@
103 qemu-system-i386 $(QEMU_FLAGS)
106 debug: $(bin) $(elf).sym
107 qemu-system-i386 $(QEMU_FLAGS) -s -S
114 mount -o loop,offset=1048576 $< /mnt
118 mcopy -D o -i $<@@1M data/* ::.data