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 # If you want to preset the SVGA mode, uncomment the next line and
13 # set SVGA_MODE to whatever number you want.
14 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
15 # The number is the same as you would ordinarily press at bootup.
17 SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
19 targets := vmlinux.bin setup.bin setup.elf bzImage
20 targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
23 setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o
24 setup-y += early_serial_console.o edd.o header.o main.o mca.o memory.o
25 setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
26 setup-y += video-mode.o version.o
27 setup-$(CONFIG_X86_APM_BOOT) += apm.o
29 # The link order of the video-*.o modules can matter. In particular,
30 # video-vga.o *must* be listed first, followed by video-vesa.o.
31 # Hardware-specific drivers should follow in the order they should be
32 # probed, and video-bios.o should typically be last.
33 setup-y += video-vga.o
34 setup-y += video-vesa.o
35 setup-y += video-bios.o
38 hostprogs-y := mkcpustr tools/build
40 HOST_EXTRACFLAGS += -I$(srctree)/tools/include $(LINUXINCLUDE) \
41 -D__EXPORTED_HEADERS__
43 $(obj)/cpu.o: $(obj)/cpustr.h
45 quiet_cmd_cpustr = CPUSTR $@
46 cmd_cpustr = $(obj)/mkcpustr > $@
48 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
49 $(call if_changed,cpustr)
51 # ---------------------------------------------------------------------------
53 # How to compile the 16-bit code. Note we always compile for -march=i386,
54 # that way we can complain to the user if the CPU is insufficient.
55 KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
56 -DDISABLE_BRANCH_PROFILING \
57 -Wall -Wstrict-prototypes \
58 -march=i386 -mregparm=3 \
59 -include $(srctree)/$(src)/code16gcc.h \
60 -fno-strict-aliasing -fomit-frame-pointer \
61 $(call cc-option, -ffreestanding) \
62 $(call cc-option, -fno-toplevel-reorder,\
63 $(call cc-option, -fno-unit-at-a-time)) \
64 $(call cc-option, -fno-stack-protector) \
65 $(call cc-option, -mpreferred-stack-boundary=2)
66 KBUILD_CFLAGS += $(call cc-option, -m32)
67 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
70 $(obj)/bzImage: asflags-y := $(SVGA_MODE)
72 quiet_cmd_image = BUILD $@
73 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin > $@
75 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
76 $(call if_changed,image)
77 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
79 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
80 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
81 $(call if_changed,objcopy)
83 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
85 sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
87 quiet_cmd_voffset = VOFFSET $@
88 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
91 $(obj)/voffset.h: vmlinux FORCE
92 $(call if_changed,voffset)
94 sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
96 quiet_cmd_zoffset = ZOFFSET $@
97 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
100 $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
101 $(call if_changed,zoffset)
104 AFLAGS_header.o += -I$(obj)
105 $(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
107 LDFLAGS_setup.elf := -T
108 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
109 $(call if_changed,ld)
111 OBJCOPYFLAGS_setup.bin := -O binary
112 $(obj)/setup.bin: $(obj)/setup.elf FORCE
113 $(call if_changed,objcopy)
115 $(obj)/compressed/vmlinux: FORCE
116 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
118 # Set this if you want to pass append arguments to the
119 # bzdisk/fdimage/isoimage kernel
121 # Set this if you want an initrd included with the
122 # bzdisk/fdimage/isoimage kernel
125 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
127 $(obj)/mtools.conf: $(src)/mtools.conf.in
128 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
130 # This requires write access to /dev/fd0
131 bzdisk: $(obj)/bzImage $(obj)/mtools.conf
132 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
133 syslinux /dev/fd0 ; sync
134 echo '$(image_cmdline)' | \
135 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
136 if [ -f '$(FDINITRD)' ] ; then \
137 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
139 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
141 # These require being root or having syslinux 2.02 or higher installed
142 fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
143 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
144 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
145 syslinux $(obj)/fdimage ; sync
146 echo '$(image_cmdline)' | \
147 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
148 if [ -f '$(FDINITRD)' ] ; then \
149 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
151 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
153 fdimage288: $(obj)/bzImage $(obj)/mtools.conf
154 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
155 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
156 syslinux $(obj)/fdimage ; sync
157 echo '$(image_cmdline)' | \
158 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
159 if [ -f '$(FDINITRD)' ] ; then \
160 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
162 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
164 isoimage: $(obj)/bzImage
165 -rm -rf $(obj)/isoimage
166 mkdir $(obj)/isoimage
167 for i in lib lib64 share end ; do \
168 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
169 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
172 if [ $$i = end ] ; then exit 1 ; fi ; \
174 cp $(obj)/bzImage $(obj)/isoimage/linux
175 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
176 if [ -f '$(FDINITRD)' ] ; then \
177 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
179 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
180 -no-emul-boot -boot-load-size 4 -boot-info-table \
182 isohybrid $(obj)/image.iso 2>/dev/null || true
183 rm -rf $(obj)/isoimage
185 bzlilo: $(obj)/bzImage
186 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
187 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
188 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
189 cp System.map $(INSTALL_PATH)/
190 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
193 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
194 System.map "$(INSTALL_PATH)"