2 # arch/x86/boot/Makefile
4 # This file is subject to the terms and conditions of the GNU General Public
5 # License. See the file "COPYING" in the main directory of this archive
8 # Copyright (C) 1994 by Linus Torvalds
11 # ROOT_DEV specifies the default root-device when making the image.
12 # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
13 # the default of FLOPPY is used by 'build'.
17 # If you want to preset the SVGA mode, uncomment the next line and
18 # set SVGA_MODE to whatever number you want.
19 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
20 # The number is the same as you would ordinarily press at bootup.
22 SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
24 # If you want the RAM disk device, define this to be the size in blocks.
26 #RAMDISK := -DRAMDISK=512
28 targets := vmlinux.bin setup.bin setup.elf zImage bzImage
31 setup-y += a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o
32 setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
33 setup-y += printf.o string.o tty.o video.o version.o voyager.o
35 # The link order of the video-*.o modules can matter. In particular,
36 # video-vga.o *must* be listed first, followed by video-vesa.o.
37 # Hardware-specific drivers should follow in the order they should be
38 # probed, and video-bios.o should typically be last.
39 setup-y += video-vga.o
40 setup-y += video-vesa.o
41 setup-y += video-bios.o
43 hostprogs-y := tools/build
45 HOSTCFLAGS_build.o := $(LINUXINCLUDE)
47 # ---------------------------------------------------------------------------
49 # How to compile the 16-bit code. Note we always compile for -march=i386,
50 # that way we can complain to the user if the CPU is insufficient.
53 KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
55 -Wall -Wstrict-prototypes \
56 -march=i386 -mregparm=3 \
57 -include $(srctree)/$(src)/code16gcc.h \
58 -fno-strict-aliasing -fomit-frame-pointer \
59 $(call cc-option, -ffreestanding) \
60 $(call cc-option, -fno-toplevel-reorder,\
61 $(call cc-option, -fno-unit-at-a-time)) \
62 $(call cc-option, -fno-stack-protector) \
63 $(call cc-option, -mpreferred-stack-boundary=2)
64 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
66 $(obj)/zImage: IMAGE_OFFSET := 0x1000
67 $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
68 $(obj)/bzImage: IMAGE_OFFSET := 0x100000
69 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
70 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
71 $(obj)/bzImage: BUILDFLAGS := -b
73 quiet_cmd_image = BUILD $@
74 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
75 $(obj)/vmlinux.bin $(ROOT_DEV) > $@
77 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
78 $(obj)/vmlinux.bin $(obj)/tools/build FORCE
79 $(call if_changed,image)
80 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
82 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
83 $(call if_changed,objcopy)
85 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
87 LDFLAGS_setup.elf := -T
88 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
91 OBJCOPYFLAGS_setup.bin := -O binary
93 $(obj)/setup.bin: $(obj)/setup.elf FORCE
94 $(call if_changed,objcopy)
96 $(obj)/compressed/vmlinux: FORCE
97 $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
99 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
101 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
104 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
106 $(obj)/mtools.conf: $(src)/mtools.conf.in
107 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
109 # This requires write access to /dev/fd0
110 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
111 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
112 syslinux /dev/fd0 ; sync
113 echo '$(image_cmdline)' | \
114 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
115 if [ -f '$(FDINITRD)' ] ; then \
116 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
118 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
120 # These require being root or having syslinux 2.02 or higher installed
121 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
122 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
123 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
124 syslinux $(obj)/fdimage ; sync
125 echo '$(image_cmdline)' | \
126 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
127 if [ -f '$(FDINITRD)' ] ; then \
128 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
130 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
132 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
133 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
134 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
135 syslinux $(obj)/fdimage ; sync
136 echo '$(image_cmdline)' | \
137 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
138 if [ -f '$(FDINITRD)' ] ; then \
139 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
141 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
143 isoimage: $(BOOTIMAGE)
144 -rm -rf $(obj)/isoimage
145 mkdir $(obj)/isoimage
146 for i in lib lib64 share end ; do \
147 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
148 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
151 if [ $$i = end ] ; then exit 1 ; fi ; \
153 cp $(BOOTIMAGE) $(obj)/isoimage/linux
154 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
155 if [ -f '$(FDINITRD)' ] ; then \
156 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
158 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
159 -no-emul-boot -boot-load-size 4 -boot-info-table \
161 rm -rf $(obj)/isoimage
164 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
165 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
166 cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
167 cp System.map $(INSTALL_PATH)/
168 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
171 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"