makefile

一个微型操作系统源码

# OSV
# Copyright (C) 2002 Ciprian DOSOFTEI <[e-mail]>
# All rights reserved.
# 
# http://backster.free.fr/osv
#
# This file is part of the OSV project. OSV is free software, also known as
# "open source"; you can redistribute it and/or modify it under the terms 
# of the GNU General Public License (GPL), version 2, as published by the Free
# Software Foundation (FSF). To explore alternate licensing terms, contact 
# the author at [e-mail] or [phone].
# 
# OSV is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GPL for more details.  You should have
# received a copy of the GPL along with OSV; see the file COPYING.  If
# not, write to the FSF, 59 Temple Place #330, Boston, MA 02111-1307, USA.

.EXPORT_ALL_VARIABLES:

INC = ../include
LIB = lib

CC = gcc
CPP = g++
LD = ld
AS = nasm
AR = ar
RM = rm -f
STRIP = strip
OBJCOPY = objcopy

CFLAGS  = -nostdlib -nostdinc -O3 -fno-builtin -fomit-frame-pointer \
        -fno-defer-pop -I$(INC) -Wall -Wno-main -m486

CPPFLAGS = $(CFLAGS)
ASFLAGS = -f elf
LFLAGS = -L$(LIB) -S -X
NMFLAGS = -C -g -n
OCFLAGS = -O binary

MAKEFILE = Makefile
TARGET = ozv

T1 = kernel/kernel.o
T2 = mm/mm.o
T3 = drivers/drivers.o

LIBS = libc.a

SOURCES1 = kernel/*.c kernel/*.s
SOURCES2 = mm/*.c
SOURCES3 = lib/*.c
SOURCES4 = drivers/*.c

LOOPDEV = /dev/loop0
IMGFILE = osv-disk.144
GRUB	= /boot/grub

all: $(TARGET) $(Makefile)

$(TARGET): osv
	gzip -c -9 osv > $(TARGET)

osv: $(T1) $(T2) $(T3) $(LIBS)
	$(LD) $(LFLAGS) -T misc/osv.ld -o osv $(T1) $(T2) $(T3) lib/$(LIBS)

kernel/kernel.o: $(SOURCES1)
	make -C kernel

mm/mm.o: $(SOURCES2)
	make -C mm

drivers/drivers.o: $(SOURCES4)
	make -C drivers

$(LIBS): $(SOURCES3)
	make -C lib

depend: .depend

.depend:
	$(CC) -E $(CFLAGS) -M $(SOURCES1) $(SOURCES2) $(SOURCES3) $(SOURCES4) > .depend 

clean:
	$(RM) osv
	$(RM) $(TARGET)
	$(RM) .depend
	make -C kernel clean
	make -C mm clean
	make -C drivers clean
	make -C lib clean

loopback:
	@make $(TARGET)
	@echo Setting up loop device ...
	@losetup $(LOOPDEV) $(IMGFILE)
	@mkdir temp
	@mount $(LOOPDEV) temp

include misc/rules.inc

ifeq (.depend,$(wildcard .depend))
include .depend
endif