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 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
34 setup-$(CONFIG_X86_APM_BOOT) += apm.o
35 setup-$(CONFIG_X86_VOYAGER) += voyager.o
37 # The link order of the video-*.o modules can matter. In particular,
38 # video-vga.o *must* be listed first, followed by video-vesa.o.
39 # Hardware-specific drivers should follow in the order they should be
40 # probed, and video-bios.o should typically be last.
41 setup-y += video-vga.o
42 setup-y += video-vesa.o
43 setup-y += video-bios.o
46 hostprogs-y := mkcpustr tools/build
48 HOST_EXTRACFLAGS += $(LINUXINCLUDE)
50 $(obj)/cpu.o: $(obj)/cpustr.h
52 quiet_cmd_cpustr = CPUSTR $@
53 cmd_cpustr = $(obj)/mkcpustr > $@
55 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
56 $(call if_changed,cpustr)
58 # ---------------------------------------------------------------------------
60 # How to compile the 16-bit code. Note we always compile for -march=i386,
61 # that way we can complain to the user if the CPU is insufficient.
62 KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
63 -Wall -Wstrict-prototypes \
64 -march=i386 -mregparm=3 \
65 -include $(srctree)/$(src)/code16gcc.h \
66 -fno-strict-aliasing -fomit-frame-pointer \
67 $(call cc-option, -ffreestanding) \
68 $(call cc-option, -fno-toplevel-reorder,\
69 $(call cc-option, -fno-unit-at-a-time)) \
70 $(call cc-option, -fno-stack-protector) \
71 $(call cc-option, -mpreferred-stack-boundary=2)
72 KBUILD_CFLAGS += $(call cc-option,-m32)
73 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
75 $(obj)/zImage: IMAGE_OFFSET := 0x1000
76 $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
77 $(obj)/bzImage: IMAGE_OFFSET := 0x100000
78 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
79 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
80 $(obj)/bzImage: BUILDFLAGS := -b
82 quiet_cmd_image = BUILD $@
83 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
84 $(obj)/vmlinux.bin $(ROOT_DEV) > $@
86 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
87 $(obj)/vmlinux.bin $(obj)/tools/build FORCE
88 $(call if_changed,image)
89 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
91 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
92 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
93 $(call if_changed,objcopy)
95 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
97 LDFLAGS_setup.elf := -T
98 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
101 OBJCOPYFLAGS_setup.bin := -O binary
102 $(obj)/setup.bin: $(obj)/setup.elf FORCE
103 $(call if_changed,objcopy)
105 $(obj)/compressed/vmlinux: FORCE
106 $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
108 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
110 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
113 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
115 $(obj)/mtools.conf: $(src)/mtools.conf.in
116 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
118 # This requires write access to /dev/fd0
119 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
120 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
121 syslinux /dev/fd0 ; sync
122 echo '$(image_cmdline)' | \
123 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
124 if [ -f '$(FDINITRD)' ] ; then \
125 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
127 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
129 # These require being root or having syslinux 2.02 or higher installed
130 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
131 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
132 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
133 syslinux $(obj)/fdimage ; sync
134 echo '$(image_cmdline)' | \
135 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
136 if [ -f '$(FDINITRD)' ] ; then \
137 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
139 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
141 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
142 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
143 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
144 syslinux $(obj)/fdimage ; sync
145 echo '$(image_cmdline)' | \
146 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
147 if [ -f '$(FDINITRD)' ] ; then \
148 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
150 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
152 isoimage: $(BOOTIMAGE)
153 -rm -rf $(obj)/isoimage
154 mkdir $(obj)/isoimage
155 for i in lib lib64 share end ; do \
156 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
157 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
160 if [ $$i = end ] ; then exit 1 ; fi ; \
162 cp $(BOOTIMAGE) $(obj)/isoimage/linux
163 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
164 if [ -f '$(FDINITRD)' ] ; then \
165 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
167 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
168 -no-emul-boot -boot-load-size 4 -boot-info-table \
170 rm -rf $(obj)/isoimage
173 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
174 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
175 cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
176 cp System.map $(INSTALL_PATH)/
177 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
180 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"