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OBJS = \
bio.o\
console.o\
exec.o\
file.o\
fs.o\
ide.o\
ioapic.o\
kalloc.o\
kbd.o\
lapic.o\
main.o\
mp.o\
picirq.o\
pipe.o\
proc.o\
spinlock.o\
string.o\
swtch.o\
syscall.o\
sysfile.o\
sysproc.o\
timer.o\
trapasm.o\
trap.o\
vectors.o\
# Cross-compiling (e.g., on Mac OS X)
# TOOLPREFIX = i386-jos-elf-
# Using native tools (e.g., on X86 Linux)
TOOLPREFIX =
CC = $(TOOLPREFIX)gcc
AS = $(TOOLPREFIX)gas
LD = $(TOOLPREFIX)ld
OBJCOPY = $(TOOLPREFIX)objcopy
OBJDUMP = $(TOOLPREFIX)objdump
CFLAGS = -fno-builtin -O2 -Wall -MD -ggdb -m32
CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector)
ASFLAGS = -m32
# FreeBSD ld wants ``elf_i386_fbsd''
LDFLAGS += -m $(shell $(LD) -V | grep elf_i386 2>/dev/null)
default: xv6.img
mv *.img bin
xv6.img: bootblock kernel fs.img
dd if=/dev/zero of=xv6.img count=10000
dd if=bootblock of=xv6.img conv=notrunc
dd if=kernel of=xv6.img seek=1 conv=notrunc
bootblock: bootasm.S bootmain.c
$(CC) $(CFLAGS) -O -nostdinc -I. -c bootmain.c
$(CC) $(CFLAGS) -nostdinc -I. -c bootasm.S
$(LD) $(LDFLAGS) -N -e start -Ttext 0x7C00 -o bootblock.o bootasm.o bootmain.o
$(OBJDUMP) -S bootblock.o > bootblock.asm
$(OBJCOPY) -S -O binary bootblock.o bootblock
./sign.pl bootblock
bootother: bootother.S
$(CC) $(CFLAGS) -nostdinc -I. -c bootother.S
$(LD) $(LDFLAGS) -N -e start -Ttext 0x7000 -o bootother.out bootother.o
$(OBJCOPY) -S -O binary bootother.out bootother
$(OBJDUMP) -S bootother.o > bootother.asm
initcode: initcode.S
$(CC) $(CFLAGS) -nostdinc -I. -c initcode.S
$(LD) $(LDFLAGS) -N -e start -Ttext 0 -o initcode.out initcode.o
$(OBJCOPY) -S -O binary initcode.out initcode
$(OBJDUMP) -S initcode.o > initcode.asm
kernel: $(OBJS) bootother initcode
$(LD) $(LDFLAGS) -Ttext 0x100000 -e main -o kernel $(OBJS) -b binary initcode bootother
$(OBJDUMP) -S kernel > kernel.asm
$(OBJDUMP) -t kernel | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > kernel.sym
tags: $(OBJS) bootother.S _init
etags *.S *.c
vectors.S: vectors.pl
perl vectors.pl > vectors.S
ULIB = xv6lib/ulib.o xv6lib/usys.o xv6lib/printf.o xv6lib/umalloc.o
_%: apps/%.o $(ULIB)
$(LD) $(LDFLAGS) -N -e main -Ttext 0 -o $@ $^
$(OBJDUMP) -S $@ > $*.asm
$(OBJDUMP) -t $@ | sed '1,/SYMBOL TABLE/d; s/ .* / /; /^$$/d' > $*.sym
mkfs: mkfs.c fs.h
gcc $(CFLAGS) -Wall -o mkfs mkfs.c
UPROGS=\
_cat\
_echo\
_grep\
_init\
_kill\
_ln\
_ls\
_mkdir\
_rm\
_sh\
_usertests\
_wc\
_zombie\
fs.img: mkfs README $(UPROGS)
./mkfs fs.img README $(UPROGS)
-include *.d
clean:
rm -f *.tex *.dvi *.idx *.aux *.log *.ind *.ilg \
*.o *.d *.asm *.sym vectors.S parport.out \
bootblock kernel mkfs \
apps/*.d xv6lib/*.d \
$(UPROGS)
# make a printout
FILES = $(shell grep -v '^\#' runoff.list)
PRINT = runoff.list $(FILES)
xv6.pdf: $(PRINT)
./runoff
print: xv6.pdf
# run in emulators
qemu: fs.img xv6.img
qemu -parallel stdio -hdb fs.img -hda xv6.img