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
9 # Changed by many, many contributors over the years.
12 # ROOT_DEV specifies the default root-device when making the image.
13 # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
14 # the default of FLOPPY is used by 'build'.
18 # If you want to preset the SVGA mode, uncomment the next line and
19 # set SVGA_MODE to whatever number you want.
20 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
21 # The number is the same as you would ordinarily press at bootup.
23 SVGA_MODE
:= -DSVGA_MODE
=NORMAL_VGA
25 targets
:= vmlinux.bin setup.bin setup.elf bzImage
26 targets
+= fdimage fdimage144 fdimage288 image.iso mtools.conf
29 setup-y
+= a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o edd.o
30 setup-y
+= header.o main.o mca.o memory.o pm.o pmjump.o
31 setup-y
+= printf.o regs.o string.o tty.o video.o video-mode.o
33 setup-
$(CONFIG_X86_APM_BOOT
) += apm.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
:= mkcpustr tools
/build
46 HOST_EXTRACFLAGS
+= $(LINUXINCLUDE
)
48 $(obj
)/cpu.o
: $(obj
)/cpustr.h
50 quiet_cmd_cpustr
= CPUSTR
$@
51 cmd_cpustr
= $(obj
)/mkcpustr
> $@
53 $(obj
)/cpustr.h
: $(obj
)/mkcpustr FORCE
54 $(call if_changed
,cpustr
)
56 # ---------------------------------------------------------------------------
58 # How to compile the 16-bit code. Note we always compile for -march=i386,
59 # that way we can complain to the user if the CPU is insufficient.
60 KBUILD_CFLAGS
:= $(LINUXINCLUDE
) -g
-Os
-D_SETUP
-D__KERNEL__ \
61 -DDISABLE_BRANCH_PROFILING \
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
)/bzImage
: asflags-y
:= $(SVGA_MODE
)
76 quiet_cmd_image
= BUILD
$@
77 cmd_image
= $(obj
)/tools
/build
$(obj
)/setup.bin
$(obj
)/vmlinux.bin \
80 $(obj
)/bzImage
: $(obj
)/setup.bin
$(obj
)/vmlinux.bin
$(obj
)/tools
/build FORCE
81 $(call if_changed
,image
)
82 @echo
'Kernel: $@ is ready' ' (#'`cat .version`')'
84 OBJCOPYFLAGS_vmlinux.bin
:= -O binary
-R .note
-R .comment
-S
85 $(obj
)/vmlinux.bin
: $(obj
)/compressed
/vmlinux FORCE
86 $(call if_changed
,objcopy
)
88 SETUP_OBJS
= $(addprefix $(obj
)/,$(setup-y
))
90 sed-voffset
:= -e
's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
92 quiet_cmd_voffset
= VOFFSET
$@
93 cmd_voffset
= $(NM
) $< | sed
-n
$(sed-voffset
) > $@
96 $(obj
)/voffset.h
: vmlinux FORCE
97 $(call if_changed
,voffset
)
99 sed-zoffset
:= -e
's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
101 quiet_cmd_zoffset
= ZOFFSET
$@
102 cmd_zoffset
= $(NM
) $< | sed
-n
$(sed-zoffset
) > $@
105 $(obj
)/zoffset.h
: $(obj
)/compressed
/vmlinux FORCE
106 $(call if_changed
,zoffset
)
109 AFLAGS_header.o
+= -I
$(obj
)
110 $(obj
)/header.o
: $(obj
)/voffset.h
$(obj
)/zoffset.h
112 LDFLAGS_setup.elf
:= -T
113 $(obj
)/setup.elf
: $(src
)/setup.
ld $(SETUP_OBJS
) FORCE
114 $(call if_changed
,ld)
116 OBJCOPYFLAGS_setup.bin
:= -O binary
117 $(obj
)/setup.bin
: $(obj
)/setup.elf FORCE
118 $(call if_changed
,objcopy
)
120 $(obj
)/compressed
/vmlinux
: FORCE
121 $(Q
)$(MAKE
) $(build
)=$(obj
)/compressed
$@
123 # Set this if you want to pass append arguments to the
124 # bzdisk/fdimage/isoimage kernel
126 # Set this if you want an initrd included with the
127 # bzdisk/fdimage/isoimage kernel
130 image_cmdline
= default linux
$(FDARGS
) $(if
$(FDINITRD
),initrd
=initrd.img
,)
132 $(obj
)/mtools.conf
: $(src
)/mtools.conf.in
133 sed
-e
's|@OBJ@|$(obj)|g' < $< > $@
135 # This requires write access to /dev/fd0
136 bzdisk
: $(obj
)/bzImage
$(obj
)/mtools.conf
137 MTOOLSRC
=$(obj
)/mtools.conf mformat a
: ; sync
138 syslinux
/dev
/fd0
; sync
139 echo
'$(image_cmdline)' | \
140 MTOOLSRC
=$(src
)/mtools.conf mcopy
- a
:syslinux.cfg
141 if
[ -f
'$(FDINITRD)' ] ; then \
142 MTOOLSRC
=$(obj
)/mtools.conf mcopy
'$(FDINITRD)' a
:initrd.img
; \
144 MTOOLSRC
=$(obj
)/mtools.conf mcopy
$(obj
)/bzImage a
:linux
; sync
146 # These require being root or having syslinux 2.02 or higher installed
147 fdimage fdimage144
: $(obj
)/bzImage
$(obj
)/mtools.conf
148 dd if
=/dev
/zero of
=$(obj
)/fdimage bs
=1024 count
=1440
149 MTOOLSRC
=$(obj
)/mtools.conf mformat v
: ; sync
150 syslinux
$(obj
)/fdimage
; sync
151 echo
'$(image_cmdline)' | \
152 MTOOLSRC
=$(obj
)/mtools.conf mcopy
- v
:syslinux.cfg
153 if
[ -f
'$(FDINITRD)' ] ; then \
154 MTOOLSRC
=$(obj
)/mtools.conf mcopy
'$(FDINITRD)' v
:initrd.img
; \
156 MTOOLSRC
=$(obj
)/mtools.conf mcopy
$(obj
)/bzImage v
:linux
; sync
158 fdimage288
: $(obj
)/bzImage
$(obj
)/mtools.conf
159 dd if
=/dev
/zero of
=$(obj
)/fdimage bs
=1024 count
=2880
160 MTOOLSRC
=$(obj
)/mtools.conf mformat w
: ; sync
161 syslinux
$(obj
)/fdimage
; sync
162 echo
'$(image_cmdline)' | \
163 MTOOLSRC
=$(obj
)/mtools.conf mcopy
- w
:syslinux.cfg
164 if
[ -f
'$(FDINITRD)' ] ; then \
165 MTOOLSRC
=$(obj
)/mtools.conf mcopy
'$(FDINITRD)' w
:initrd.img
; \
167 MTOOLSRC
=$(obj
)/mtools.conf mcopy
$(obj
)/bzImage w
:linux
; sync
169 isoimage
: $(obj
)/bzImage
170 -rm -rf
$(obj
)/isoimage
171 mkdir
$(obj
)/isoimage
172 for i in lib lib64 share end
; do \
173 if
[ -f
/usr
/$$i/syslinux
/isolinux.bin
] ; then \
174 cp
/usr
/$$i/syslinux
/isolinux.bin
$(obj
)/isoimage
; \
177 if
[ $$i = end
] ; then exit
1 ; fi
; \
179 cp
$(obj
)/bzImage
$(obj
)/isoimage
/linux
180 echo
'$(image_cmdline)' > $(obj
)/isoimage
/isolinux.cfg
181 if
[ -f
'$(FDINITRD)' ] ; then \
182 cp
'$(FDINITRD)' $(obj
)/isoimage
/initrd.img
; \
184 mkisofs
-J
-r
-o
$(obj
)/image.iso
-b isolinux.bin
-c boot.cat \
185 -no-emul-boot
-boot-load-size
4 -boot-info-table \
187 isohybrid
$(obj
)/image.iso
2>/dev
/null || true
188 rm -rf
$(obj
)/isoimage
190 bzlilo
: $(obj
)/bzImage
191 if
[ -f
$(INSTALL_PATH
)/vmlinuz
]; then mv
$(INSTALL_PATH
)/vmlinuz
$(INSTALL_PATH
)/vmlinuz.old
; fi
192 if
[ -f
$(INSTALL_PATH
)/System.map
]; then mv
$(INSTALL_PATH
)/System.map
$(INSTALL_PATH
)/System.old
; fi
193 cat
$(obj
)/bzImage
> $(INSTALL_PATH
)/vmlinuz
194 cp System.map
$(INSTALL_PATH
)/
195 if
[ -x
/sbin
/lilo
]; then
/sbin
/lilo
; else /etc
/lilo
/install; fi
198 sh
$(srctree
)/$(src
)/install.sh
$(KERNELRELEASE
) $(obj
)/bzImage \
199 System.map
"$(INSTALL_PATH)"