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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
Thomas Gleixner96ae6ea2007-10-11 11:16:45 +02002# arch/x86/boot/Makefile
Linus Torvalds1da177e2005-04-16 15:20:36 -07003#
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
6# for more details.
7#
8# Copyright (C) 1994 by Linus Torvalds
H. Peter Anvin5e47c472009-03-11 10:55:33 -07009# Changed by many, many contributors over the years.
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#
11
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'.
15
H. Peter Anvin5e47c472009-03-11 10:55:33 -070016ROOT_DEV := CURRENT
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
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.
22
H. Peter Anvin5e47c472009-03-11 10:55:33 -070023SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
Linus Torvalds1da177e2005-04-16 15:20:36 -070024
H. Peter Anvin5e47c472009-03-11 10:55:33 -070025targets := vmlinux.bin setup.bin setup.elf bzImage
H. Peter Anvin16a67912009-03-12 13:43:14 -070026targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010027subdir- := compressed
Linus Torvalds1da177e2005-04-16 15:20:36 -070028
H. Peter Anvin7a734e72009-04-01 18:08:28 -070029setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o edd.o
H. Peter Anvin4fd06962007-07-11 12:18:56 -070030setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
H. Peter Anvin7a734e72009-04-01 18:08:28 -070031setup-y += printf.o regs.o string.o tty.o video.o video-mode.o
32setup-y += version.o
Andi Kleena6b68072008-01-30 13:32:49 +010033setup-$(CONFIG_X86_APM_BOOT) += apm.o
H. Peter Anvin4fd06962007-07-11 12:18:56 -070034
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.
39setup-y += video-vga.o
40setup-y += video-vesa.o
41setup-y += video-bios.o
H. Peter Anvin30c82642007-10-15 17:13:22 -070042
Sam Ravnborg3fbc5412007-07-17 22:27:22 +020043targets += $(setup-y)
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010044hostprogs-y := mkcpustr tools/build
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
H. Peter Anvinf0be6c62008-02-04 16:48:00 +010046HOST_EXTRACFLAGS += $(LINUXINCLUDE)
47
48$(obj)/cpu.o: $(obj)/cpustr.h
49
50quiet_cmd_cpustr = CPUSTR $@
51 cmd_cpustr = $(obj)/mkcpustr > $@
52targets += cpustr.h
53$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
54 $(call if_changed,cpustr)
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
56# ---------------------------------------------------------------------------
57
H. Peter Anvin4fd06962007-07-11 12:18:56 -070058# 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.
Sam Ravnborga0f97e02007-10-14 22:21:35 +020060KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
H. Peter Anvin95a38f32009-04-01 17:35:00 -070061 -DDISABLE_BRANCH_PROFILING \
H. Peter Anvin4fd06962007-07-11 12:18:56 -070062 -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)
H. Peter Anvin95a38f32009-04-01 17:35:00 -070071KBUILD_CFLAGS += $(call cc-option, -m32)
Sam Ravnborg222d3942007-10-15 21:59:31 +020072KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
Peter Oberparleiter7bf99fb2009-06-17 16:28:09 -070073GCOV_PROFILE := n
H. Peter Anvin4fd06962007-07-11 12:18:56 -070074
H. Peter Anvin5e47c472009-03-11 10:55:33 -070075$(obj)/bzImage: asflags-y := $(SVGA_MODE)
Linus Torvalds1da177e2005-04-16 15:20:36 -070076
77quiet_cmd_image = BUILD $@
H. Peter Anvin5e47c472009-03-11 10:55:33 -070078cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
79 $(ROOT_DEV) > $@
Linus Torvalds1da177e2005-04-16 15:20:36 -070080
H. Peter Anvin5e47c472009-03-11 10:55:33 -070081$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 $(call if_changed,image)
Coywolf Qi Hunt28948012005-06-21 17:15:15 -070083 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
Ian Campbell1622ac22008-02-04 16:47:56 +010085OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
Linus Torvalds1da177e2005-04-16 15:20:36 -070086$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
87 $(call if_changed,objcopy)
88
H. Peter Anvin4fd06962007-07-11 12:18:56 -070089SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
H. Peter Anvin77d1a492009-05-11 14:21:12 -070091sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
Ian Campbell099e1372008-02-13 20:54:58 +000092
H. Peter Anvin77d1a492009-05-11 14:21:12 -070093quiet_cmd_voffset = VOFFSET $@
94 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
Ian Campbell099e1372008-02-13 20:54:58 +000095
H. Peter Anvin77d1a492009-05-11 14:21:12 -070096targets += voffset.h
97$(obj)/voffset.h: vmlinux FORCE
98 $(call if_changed,voffset)
Ian Campbell099e1372008-02-13 20:54:58 +000099
H. Peter Anvinc6ac4c12009-05-20 11:26:09 -0700100sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
H. Peter Anvin77d1a492009-05-11 14:21:12 -0700101
102quiet_cmd_zoffset = ZOFFSET $@
103 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
104
105targets += zoffset.h
106$(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
107 $(call if_changed,zoffset)
108
Ian Campbell099e1372008-02-13 20:54:58 +0000109
110AFLAGS_header.o += -I$(obj)
H. Peter Anvin77d1a492009-05-11 14:21:12 -0700111$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
Ian Campbell099e1372008-02-13 20:54:58 +0000112
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700113LDFLAGS_setup.elf := -T
114$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 $(call if_changed,ld)
116
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700117OBJCOPYFLAGS_setup.bin := -O binary
H. Peter Anvin4fd06962007-07-11 12:18:56 -0700118$(obj)/setup.bin: $(obj)/setup.elf FORCE
119 $(call if_changed,objcopy)
120
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121$(obj)/compressed/vmlinux: FORCE
Paul Bolled960c9c2008-10-04 21:18:51 +0200122 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700124# Set this if you want to pass append arguments to the
125# bzdisk/fdimage/isoimage kernel
H. Peter Anvinf0be6c62008-02-04 16:48:00 +0100126FDARGS =
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700127# Set this if you want an initrd included with the
128# bzdisk/fdimage/isoimage kernel
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800129FDINITRD =
130
131image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
133$(obj)/mtools.conf: $(src)/mtools.conf.in
134 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
135
136# This requires write access to /dev/fd0
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700137bzdisk: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
139 syslinux /dev/fd0 ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800140 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800142 if [ -f '$(FDINITRD)' ] ; then \
143 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
144 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700145 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146
147# These require being root or having syslinux 2.02 or higher installed
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700148fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
150 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
151 syslinux $(obj)/fdimage ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800152 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700153 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800154 if [ -f '$(FDINITRD)' ] ; then \
155 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
156 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700157 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700159fdimage288: $(obj)/bzImage $(obj)/mtools.conf
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
161 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
162 syslinux $(obj)/fdimage ; sync
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800163 echo '$(image_cmdline)' | \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800165 if [ -f '$(FDINITRD)' ] ; then \
166 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
167 fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700168 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700170isoimage: $(obj)/bzImage
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800171 -rm -rf $(obj)/isoimage
172 mkdir $(obj)/isoimage
Andi Kleenbf660252006-06-26 13:58:41 +0200173 for i in lib lib64 share end ; do \
174 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
175 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
176 break ; \
177 fi ; \
178 if [ $$i = end ] ; then exit 1 ; fi ; \
179 done
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700180 cp $(obj)/bzImage $(obj)/isoimage/linux
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800181 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
182 if [ -f '$(FDINITRD)' ] ; then \
183 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
184 fi
185 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
186 -no-emul-boot -boot-load-size 4 -boot-info-table \
187 $(obj)/isoimage
H. Peter Anvind2f37382008-09-05 21:28:27 -0700188 isohybrid $(obj)/image.iso 2>/dev/null || true
H. Peter Anvin841b8a42006-03-26 01:36:59 -0800189 rm -rf $(obj)/isoimage
190
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700191bzlilo: $(obj)/bzImage
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
193 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700194 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 cp System.map $(INSTALL_PATH)/
196 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
197
H. Peter Anvin0d20bab2006-01-07 17:38:39 -0800198install:
H. Peter Anvinf9c51072009-03-12 12:50:33 -0700199 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
200 System.map "$(INSTALL_PATH)"