makefile

Linux 0.11 代码在不做修改的情况下,很难在现在的环境下这接编译通过(除非你能的到 10 几年前 Linus 用的那个版本的 gcc 什么的)。所以要对代码作少量修改(说说是少量花了好几小时的

#
# Makefile for the FREAX-kernel.
#
# Note! Dependencies are done automagically by 'make dep', which also
# removes any old dependencies. DON'T put your own dependencies here
# unless it's something special (ie not a .c file).
#

# XXX lexiongjia modify
# OLD:
#
#	AR	=gar
#	AS	=gas
#	LD	=gld
AR	= ar
AS	= as
LD	= ld

LDFLAGS	=-s -x
CC	=gcc

# XXX lexiongjia modify
# OLD:
#	CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer -fcombine-regs \
#		-finline-functions -mstring-insns -nostdinc -I../include
CFLAGS	=-Wall -O -fstrength-reduce -fomit-frame-pointer \
	-finline-functions -nostdinc  -mcpu=i386 -I../include

CPP	=gcc -E -nostdinc -I../include

.c.s:
	$(CC) $(CFLAGS) \
	-S -o $*.s $<

# XXX lexiongjia modify
# OLD:
# .s.o:
#	$(AS) -c -o $*.o $<
.s.o:
	$(AS) -o  $*.o $<

.c.o:
	$(CC) $(CFLAGS) \
	-c -o $*.o $<

OBJS  = sched.o system_call.o traps.o asm.o fork.o \
	panic.o printk.o vsprintf.o sys.o exit.o \
	signal.o mktime.o

kernel.o: $(OBJS)
	$(LD) -r -o kernel.o $(OBJS)
	sync

clean:
	rm -f core *.o *.a tmp_make keyboard.s
	for i in *.c;do rm -f `basename $$i .c`.s;done
	(cd chr_drv; make clean)
	(cd blk_drv; make clean)
	(cd math; make clean)

dep:
	sed '/\#\#\# Dependencies/q' < Makefile > tmp_make
	(for i in *.c;do echo -n `echo $$i | sed 's,\.c,\.s,'`" "; \
		$(CPP) -M $$i;done) >> tmp_make
	cp tmp_make Makefile
	(cd chr_drv; make dep)
	(cd blk_drv; make dep)

### Dependencies:
exit.s exit.o : exit.c ../include/errno.h ../include/signal.h \
  ../include/sys/types.h ../include/sys/wait.h ../include/linux/sched.h \
  ../include/linux/head.h ../include/linux/fs.h ../include/linux/mm.h \
  ../include/linux/kernel.h ../include/linux/tty.h ../include/termios.h \
  ../include/asm/segment.h 
fork.s fork.o : fork.c ../include/errno.h ../include/linux/sched.h \
  ../include/linux/head.h ../include/linux/fs.h ../include/sys/types.h \
  ../include/linux/mm.h ../include/signal.h ../include/linux/kernel.h \
  ../include/asm/segment.h ../include/asm/system.h 
mktime.s mktime.o : mktime.c ../include/time.h 
panic.s panic.o : panic.c ../include/linux/kernel.h ../include/linux/sched.h \
  ../include/linux/head.h ../include/linux/fs.h ../include/sys/types.h \
  ../include/linux/mm.h ../include/signal.h 
printk.s printk.o : printk.c ../include/stdarg.h ../include/stddef.h \
  ../include/linux/kernel.h 
sched.s sched.o : sched.c ../include/linux/sched.h ../include/linux/head.h \
  ../include/linux/fs.h ../include/sys/types.h ../include/linux/mm.h \
  ../include/signal.h ../include/linux/kernel.h ../include/linux/sys.h \
  ../include/linux/fdreg.h ../include/asm/system.h ../include/asm/io.h \
  ../include/asm/segment.h 
signal.s signal.o : signal.c ../include/linux/sched.h ../include/linux/head.h \
  ../include/linux/fs.h ../include/sys/types.h ../include/linux/mm.h \
  ../include/signal.h ../include/linux/kernel.h ../include/asm/segment.h 
sys.s sys.o : sys.c ../include/errno.h ../include/linux/sched.h \
  ../include/linux/head.h ../include/linux/fs.h ../include/sys/types.h \
  ../include/linux/mm.h ../include/signal.h ../include/linux/tty.h \
  ../include/termios.h ../include/linux/kernel.h ../include/asm/segment.h \
  ../include/sys/times.h ../include/sys/utsname.h 
traps.s traps.o : traps.c ../include/string.h ../include/linux/head.h \
  ../include/linux/sched.h ../include/linux/fs.h ../include/sys/types.h \
  ../include/linux/mm.h ../include/signal.h ../include/linux/kernel.h \
  ../include/asm/system.h ../include/asm/segment.h ../include/asm/io.h 
vsprintf.s vsprintf.o : vsprintf.c ../include/stdarg.h ../include/string.h