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Makefile
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#
# if you want the ram-disk device, define this to be the
# size in blocks.
#
RAMDISK = #-DRAMDISK=512
AS86 =as86 -0 -a
LD86 =ld86 -0
AS =as
LD =ld
LDFLAGS =-m elf_i386 -Ttext 0 -e startup_32
CC =gcc-3.4 -march=i386 $(RAMDISK)
CFLAGS =-m32 -g -Wall -O2 -fomit-frame-pointer
CPP =cpp -nostdinc -Iinclude
#
# ROOT_DEV specifies the default root-device when making the image.
# This can be either FLOPPY, /dev/xxxx or empty, in which case the
# default of /dev/hd6 is used by 'build'.
#
ROOT_DEV= #FLOPPY
ARCHIVES=kernel/kernel.o mm/mm.o fs/fs.o
DRIVERS =kernel/blk_drv/blk_drv.a kernel/chr_drv/chr_drv.a
MATH =kernel/math/math.a
LIBS =lib/lib.a
.c.s:
$(CC) $(CFLAGS) \
-nostdinc -Iinclude -S -o $*.s $<
.s.o:
$(AS) -o $*.o $<
.c.o:
$(CC) $(CFLAGS) \
-nostdinc -Iinclude -c -o $*.o $<
all: Image
Image: boot/bootsect boot/setup tools/system tools/build
cp -f tools/system system.tmp
strip system.tmp
objcopy -O binary -R .note -R .comment system.tmp tools/kernel
tools/build boot/bootsect boot/setup tools/kernel $(ROOT_DEV) > Image
rm system.tmp
rm tools/kernel -f
sync
disk: Image
dd bs=8192 if=Image of=/dev/fd0
BootImage: boot/bootsect boot/setup tools/build
tools/build boot/bootsect boot/setup none $(ROOT_DEV) > Image
sync
tools/build: tools/build.c
gcc $(CFLAGS) \
-o tools/build tools/build.c
boot/head.o: boot/head.s
gcc-3.4 -m32 -g -I./include -traditional -c boot/head.s
mv head.o boot/
tools/system: boot/head.o init/main.o \
$(ARCHIVES) $(DRIVERS) $(MATH) $(LIBS)
$(LD) $(LDFLAGS) boot/head.o init/main.o \
$(ARCHIVES) \
$(DRIVERS) \
$(MATH) \
$(LIBS) \
-o tools/system
nm tools/system | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aU] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)'| sort > System.map
kernel/math/math.a: FORCE
(cd kernel/math; make)
kernel/blk_drv/blk_drv.a: FORCE
(cd kernel/blk_drv; make)
kernel/chr_drv/chr_drv.a: FORCE
(cd kernel/chr_drv; make)
kernel/kernel.o: FORCE
(cd kernel; make)
mm/mm.o: FORCE
(cd mm; make)
fs/fs.o: FORCE
(cd fs; make)
lib/lib.a: FORCE
(cd lib; make)
boot/setup: boot/setup.s
$(AS86) -o boot/setup.o boot/setup.s
$(LD86) -s -o boot/setup boot/setup.o
boot/bootsect: boot/bootsect.s
$(AS86) -o boot/bootsect.o boot/bootsect.s
$(LD86) -s -o boot/bootsect boot/bootsect.o
tmp.s: boot/bootsect.s tools/system
(echo -n "SYSSIZE = (";ls -l tools/system | grep system \
| cut -c25-31 | tr '\012' ' '; echo "+ 15 ) / 16") > tmp.s
cat boot/bootsect.s >> tmp.s
clean:
rm -f Image System.map tmp_make core boot/bootsect boot/setup
rm -f init/*.o tools/system tools/build boot/*.o
(cd mm;make clean)
(cd fs;make clean)
(cd kernel;make clean)
(cd lib;make clean)
backup: clean
(cd .. ; tar cf - linux | compress16 - > backup.Z)
sync
dep:
sed '/\#\#\# Dependencies/q' < Makefile > tmp_make
(for i in init/*.c;do echo -n "init/";$(CPP) -M $$i;done) >> tmp_make
cp tmp_make Makefile
(cd fs; make dep)
(cd kernel; make dep)
(cd mm; make dep)
# Force make run into subdirectories even no changes on source
FORCE:
### Dependencies:
init/main.o: init/main.c include/unistd.h include/sys/stat.h \
include/sys/types.h include/sys/times.h include/sys/utsname.h \
include/utime.h include/time.h include/linux/tty.h include/termios.h \
include/linux/sched.h include/linux/head.h include/linux/fs.h \
include/linux/mm.h include/signal.h include/asm/system.h \
include/asm/io.h include/stddef.h include/stdarg.h include/fcntl.h