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 \
41 -include include/generated/autoconf.h \
42 -D__EXPORTED_HEADERS__
44 $(obj)/cpu.o: $(obj)/cpustr.h
46 quiet_cmd_cpustr = CPUSTR $@
47 cmd_cpustr = $(obj)/mkcpustr > $@
49 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
50 $(call if_changed,cpustr)
52 # ---------------------------------------------------------------------------
54 # How to compile the 16-bit code. Note we always compile for -march=i386,
55 # that way we can complain to the user if the CPU is insufficient.
56 KBUILD_CFLAGS := $(USERINCLUDE) -m32 -g -Os -D_SETUP -D__KERNEL__ \
57 -DDISABLE_BRANCH_PROFILING \
58 -Wall -Wstrict-prototypes \
59 -march=i386 -mregparm=3 \
60 -include $(srctree)/$(src)/code16gcc.h \
61 -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
63 $(call cc-option, -ffreestanding) \
64 $(call cc-option, -fno-toplevel-reorder,\
65 $(call cc-option, -fno-unit-at-a-time)) \
66 $(call cc-option, -fno-stack-protector) \
67 $(call cc-option, -mpreferred-stack-boundary=2)
68 KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
71 $(obj)/bzImage: asflags-y := $(SVGA_MODE)
73 quiet_cmd_image = BUILD $@
74 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
77 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
78 $(call if_changed,image)
79 @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
81 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
82 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
83 $(call if_changed,objcopy)
85 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
87 sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
89 quiet_cmd_voffset = VOFFSET $@
90 cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
93 $(obj)/voffset.h: vmlinux FORCE
94 $(call if_changed,voffset)
96 sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|startup_64\|efi_pe_entry\|efi_stub_entry\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
98 quiet_cmd_zoffset = ZOFFSET $@
99 cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
102 $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
103 $(call if_changed,zoffset)
106 AFLAGS_header.o += -I$(obj)
107 $(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
109 LDFLAGS_setup.elf := -T
110 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
111 $(call if_changed,ld)
113 OBJCOPYFLAGS_setup.bin := -O binary
114 $(obj)/setup.bin: $(obj)/setup.elf FORCE
115 $(call if_changed,objcopy)
117 $(obj)/compressed/vmlinux: FORCE
118 $(Q)$(MAKE) $(build)=$(obj)/compressed $@
120 # Set this if you want to pass append arguments to the
121 # bzdisk/fdimage/isoimage kernel
123 # Set this if you want an initrd included with the
124 # bzdisk/fdimage/isoimage kernel
127 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
129 $(obj)/mtools.conf: $(src)/mtools.conf.in
130 sed -e 's|@OBJ@|$(obj)|g' < $< > $@
132 # This requires write access to /dev/fd0
133 bzdisk: $(obj)/bzImage $(obj)/mtools.conf
134 MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
135 syslinux /dev/fd0 ; sync
136 echo '$(image_cmdline)' | \
137 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
138 if [ -f '$(FDINITRD)' ] ; then \
139 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
141 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
143 # These require being root or having syslinux 2.02 or higher installed
144 fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
145 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
146 MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
147 syslinux $(obj)/fdimage ; sync
148 echo '$(image_cmdline)' | \
149 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
150 if [ -f '$(FDINITRD)' ] ; then \
151 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
153 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
155 fdimage288: $(obj)/bzImage $(obj)/mtools.conf
156 dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
157 MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
158 syslinux $(obj)/fdimage ; sync
159 echo '$(image_cmdline)' | \
160 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
161 if [ -f '$(FDINITRD)' ] ; then \
162 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
164 MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
166 isoimage: $(obj)/bzImage
167 -rm -rf $(obj)/isoimage
168 mkdir $(obj)/isoimage
169 for i in lib lib64 share end ; do \
170 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
171 cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
174 if [ $$i = end ] ; then exit 1 ; fi ; \
176 cp $(obj)/bzImage $(obj)/isoimage/linux
177 echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
178 if [ -f '$(FDINITRD)' ] ; then \
179 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
181 mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
182 -no-emul-boot -boot-load-size 4 -boot-info-table \
184 isohybrid $(obj)/image.iso 2>/dev/null || true
185 rm -rf $(obj)/isoimage
187 bzlilo: $(obj)/bzImage
188 if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
189 if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
190 cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
191 cp System.map $(INSTALL_PATH)/
192 if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
195 sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
196 System.map "$(INSTALL_PATH)"