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 video-mode.o version.o
34 setup-$(CONFIG_X86_APM_BOOT) += apm.o
36 # The link order of the video-*.o modules can matter. In particular,
37 # video-vga.o *must* be listed first, followed by video-vesa.o.
38 # Hardware-specific drivers should follow in the order they should be
39 # probed, and video-bios.o should typically be last.
40 setup-y += video-vga.o
41 setup-y += video-vesa.o
42 setup-y += video-bios.o
45 hostprogs-y := mkcpustr tools/build
47 HOST_EXTRACFLAGS += $(LINUXINCLUDE)
49 $(obj)/cpu.o: $(obj)/cpustr.h
51 quiet_cmd_cpustr = CPUSTR $@
52 cmd_cpustr = $(obj)/mkcpustr > $@
54 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
55 $(call if_changed,cpustr)
57 # ---------------------------------------------------------------------------
59 # How to compile the 16-bit code. Note we always compile for -march=i386,
60 # that way we can complain to the user if the CPU is insufficient.
61 KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
62 -Wall -Wstrict-prototypes \
63 -march=i386 -mregparm=3 \
64 -include $(srctree)/$(src)/code16gcc.h \
65 -fno-strict-aliasing -fomit-frame-pointer \
66 $(call cc-option, -ffreestanding) \
67 $(call cc-option, -fno-toplevel-reorder,\
68 $(call cc-option, -fno-unit-at-a-time)) \
69 $(call cc-option, -fno-stack-protector) \
70 $(call cc-option, -mpreferred-stack-boundary=2)
71 KBUILD_CFLAGS += $(call cc-option,-m32)
72 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
74 $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
75 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
76 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
77 $(obj)/bzImage: BUILDFLAGS := -b
79 quiet_cmd_image = BUILD $@
80 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
81 $(obj)/vmlinux.bin $(ROOT_DEV) > $@
83 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
84 $(obj)/vmlinux.bin $(obj)/tools/build FORCE
85 $(call if_changed,image)
86 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
88 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
89 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
90 $(call if_changed,objcopy)
92 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
94 sed-offsets := -e 's/^00*/0/' \
95 -e 's/^\([0-9a-fA-F]*\) . \(input_data\|input_data_end\)$$/\#define \2 0x\1/p'
97 quiet_cmd_offsets = OFFSETS $@
98 cmd_offsets = $(NM) $< | sed -n $(sed-offsets) > $@
100 $(obj)/offsets.h: $(obj)/compressed/vmlinux FORCE
101 $(call if_changed,offsets)
105 AFLAGS_header.o += -I$(obj)
106 $(obj)/header.o: $(obj)/offsets.h
108 LDFLAGS_setup.elf := -T
109 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
110 $(call if_changed,ld)
112 OBJCOPYFLAGS_setup.bin := -O binary
113 $(obj)/setup.bin: $(obj)/setup.elf FORCE
114 $(call if_changed,objcopy)
116 $(obj)/compressed/vmlinux: FORCE
117 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
119 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
121 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
124 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
126 $(obj)/mtools.conf: $(src)/mtools.conf.in
127 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
129 # This requires write access to /dev/fd0
130 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
131 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
132 syslinux /dev/fd0 ; sync
133 echo '$(image_cmdline)' | \
134 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
135 if [ -f '$(FDINITRD)' ] ; then \
136 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
138 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
140 # These require being root or having syslinux 2.02 or higher installed
141 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
142 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
143 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
144 syslinux $(obj)/fdimage ; sync
145 echo '$(image_cmdline)' | \
146 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
147 if [ -f '$(FDINITRD)' ] ; then \
148 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
150 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
152 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
153 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
154 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
155 syslinux $(obj)/fdimage ; sync
156 echo '$(image_cmdline)' | \
157 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
158 if [ -f '$(FDINITRD)' ] ; then \
159 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
161 MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
163 isoimage: $(BOOTIMAGE)
164 -rm -rf $(obj)/isoimage
165 mkdir $(obj)/isoimage
166 for i in lib lib64 share end ; do \
167 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
168 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
171 if [ $$i = end ] ; then exit 1 ; fi ; \
173 cp $(BOOTIMAGE) $(obj)/isoimage/linux
174 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
175 if [ -f '$(FDINITRD)' ] ; then \
176 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
178 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
179 -no-emul-boot -boot-load-size 4 -boot-info-table \
181 isohybrid $(obj)/image.iso 2>/dev/null || true
182 rm -rf $(obj)/isoimage
185 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
186 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
187 cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
188 cp System.map $(INSTALL_PATH)/
189 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
192 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"