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
44 hostprogs-y := tools/build
46 HOSTCFLAGS_build.o := $(LINUXINCLUDE)
48 # ---------------------------------------------------------------------------
50 # How to compile the 16-bit code. Note we always compile for -march=i386,
51 # that way we can complain to the user if the CPU is insufficient.
54 KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
56 -Wall -Wstrict-prototypes \
57 -march=i386 -mregparm=3 \
58 -include $(srctree)/$(src)/code16gcc.h \
59 -fno-strict-aliasing -fomit-frame-pointer \
60 $(call cc-option, -ffreestanding) \
61 $(call cc-option, -fno-toplevel-reorder,\
62 $(call cc-option, -fno-unit-at-a-time)) \
63 $(call cc-option, -fno-stack-protector) \
64 $(call cc-option, -mpreferred-stack-boundary=2)
65 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
67 $(obj)/zImage: IMAGE_OFFSET := 0x1000
68 $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
69 $(obj)/bzImage: IMAGE_OFFSET := 0x100000
70 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
71 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
72 $(obj)/bzImage: BUILDFLAGS := -b
74 quiet_cmd_image = BUILD $@
75 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
76 $(obj)/vmlinux.bin $(ROOT_DEV) > $@
78 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
79 $(obj)/vmlinux.bin $(obj)/tools/build FORCE
80 $(call if_changed,image)
81 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
83 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
84 $(call if_changed,objcopy)
86 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
88 LDFLAGS_setup.elf := -T
89 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
92 OBJCOPYFLAGS_setup.bin := -O binary
94 $(obj)/setup.bin: $(obj)/setup.elf FORCE
95 $(call if_changed,objcopy)
97 $(obj)/compressed/vmlinux: FORCE
98 $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
100 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
102 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
105 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
107 $(obj)/mtools.conf: $(src)/mtools.conf.in
108 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
110 # This requires write access to /dev/fd0
111 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
112 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
113 syslinux /dev/fd0 ; sync
114 echo '$(image_cmdline)' | \
115 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
116 if [ -f '$(FDINITRD)' ] ; then \
117 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
119 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
121 # These require being root or having syslinux 2.02 or higher installed
122 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
123 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
124 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
125 syslinux $(obj)/fdimage ; sync
126 echo '$(image_cmdline)' | \
127 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
128 if [ -f '$(FDINITRD)' ] ; then \
129 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
131 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
133 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
134 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
135 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
136 syslinux $(obj)/fdimage ; sync
137 echo '$(image_cmdline)' | \
138 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
139 if [ -f '$(FDINITRD)' ] ; then \
140 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
142 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
144 isoimage: $(BOOTIMAGE)
145 -rm -rf $(obj)/isoimage
146 mkdir $(obj)/isoimage
147 for i in lib lib64 share end ; do \
148 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
149 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
152 if [ $$i = end ] ; then exit 1 ; fi ; \
154 cp $(BOOTIMAGE) $(obj)/isoimage/linux
155 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
156 if [ -f '$(FDINITRD)' ] ; then \
157 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
159 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
160 -no-emul-boot -boot-load-size 4 -boot-info-table \
162 rm -rf $(obj)/isoimage
165 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
166 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
167 cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
168 cp System.map $(INSTALL_PATH)/
169 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
172 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"