arch/x86/boot/Makefile

   1 #
   2 # arch/x86/boot/Makefile
   3 #
   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
   9 #
  10
  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'.
  14
  15 ROOT_DEV := CURRENT
  16
  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.
  21
  22 SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
  23
  24 # If you want the RAM disk device, define this to be the size in blocks.
  25
  26 #RAMDISK := -DRAMDISK=512
  27
  28 targets         := vmlinux.bin setup.bin setup.elf zImage bzImage
  29 subdir-         := compressed
  30
  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 version.o
  34 setup-$(CONFIG_X86_APM_BOOT) += apm.o
  35 setup-$(CONFIG_X86_VOYAGER) += voyager.o
  36
  37 # The link order of the video-*.o modules can matter.  In particular,
  38 # video-vga.o *must* be listed first, followed by video-vesa.o.
  39 # Hardware-specific drivers should follow in the order they should be
  40 # probed, and video-bios.o should typically be last.
  41 setup-y         += video-vga.o
  42 setup-y         += video-vesa.o
  43 setup-y         += video-bios.o
  44
  45 targets         += $(setup-y)
  46 hostprogs-y     := mkcpustr tools/build
  47
  48 HOST_EXTRACFLAGS += $(LINUXINCLUDE)
  49
  50 $(obj)/cpu.o: $(obj)/cpustr.h
  51
  52 quiet_cmd_cpustr = CPUSTR  $@
  53       cmd_cpustr = $(obj)/mkcpustr > $@
  54 targets         += cpustr.h
  55 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
  56         $(call if_changed,cpustr)
  57
  58 # ---------------------------------------------------------------------------
  59
  60 # How to compile the 16-bit code.  Note we always compile for -march=i386,
  61 # that way we can complain to the user if the CPU is insufficient.
  62 KBUILD_CFLAGS   := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
  63                    -Wall -Wstrict-prototypes \
  64                    -march=i386 -mregparm=3 \
  65                    -include $(srctree)/$(src)/code16gcc.h \
  66                    -fno-strict-aliasing -fomit-frame-pointer \
  67                    $(call cc-option, -ffreestanding) \
  68                    $(call cc-option, -fno-toplevel-reorder,\
  69                         $(call cc-option, -fno-unit-at-a-time)) \
  70                    $(call cc-option, -fno-stack-protector) \
  71                    $(call cc-option, -mpreferred-stack-boundary=2)
  72 KBUILD_CFLAGS +=   $(call cc-option,-m32)
  73 KBUILD_AFLAGS   := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  74
  75 $(obj)/zImage:  IMAGE_OFFSET := 0x1000
  76 $(obj)/zImage:  asflags-y := $(SVGA_MODE) $(RAMDISK)
  77 $(obj)/bzImage: IMAGE_OFFSET := 0x100000
  78 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
  79 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
  80 $(obj)/bzImage: BUILDFLAGS   := -b
  81
  82 quiet_cmd_image = BUILD   $@
  83 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
  84             $(obj)/vmlinux.bin $(ROOT_DEV) > $@
  85
  86 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
  87                               $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  88         $(call if_changed,image)
  89         @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  90
  91 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  92 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  93         $(call if_changed,objcopy)
  94
  95 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  96
  97 LDFLAGS_setup.elf       := -T
  98 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
  99         $(call if_changed,ld)
 100
 101 OBJCOPYFLAGS_setup.bin  := -O binary
 102 $(obj)/setup.bin: $(obj)/setup.elf FORCE
 103         $(call if_changed,objcopy)
 104
 105 $(obj)/compressed/vmlinux: FORCE
 106         $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
 107
 108 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
 109 FDARGS =
 110 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
 111 FDINITRD =
 112
 113 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 114
 115 $(obj)/mtools.conf: $(src)/mtools.conf.in
 116         sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 117
 118 # This requires write access to /dev/fd0
 119 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
 120         MTOOLSRC=$(obj)/mtools.conf mformat a:                  ; sync
 121         syslinux /dev/fd0                                       ; sync
 122         echo '$(image_cmdline)' | \
 123                 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
 124         if [ -f '$(FDINITRD)' ] ; then \
 125                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
 126         fi
 127         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux  ; sync
 128
 129 # These require being root or having syslinux 2.02 or higher installed
 130 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
 131         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
 132         MTOOLSRC=$(obj)/mtools.conf mformat v:                  ; sync
 133         syslinux $(obj)/fdimage                                 ; sync
 134         echo '$(image_cmdline)' | \
 135                 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
 136         if [ -f '$(FDINITRD)' ] ; then \
 137                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
 138         fi
 139         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux  ; sync
 140
 141 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
 142         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
 143         MTOOLSRC=$(obj)/mtools.conf mformat w:                  ; sync
 144         syslinux $(obj)/fdimage                                 ; sync
 145         echo '$(image_cmdline)' | \
 146                 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
 147         if [ -f '$(FDINITRD)' ] ; then \
 148                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
 149         fi
 150         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux  ; sync
 151
 152 isoimage: $(BOOTIMAGE)
 153         -rm -rf $(obj)/isoimage
 154         mkdir $(obj)/isoimage
 155         for i in lib lib64 share end ; do \
 156                 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
 157                         cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
 158                         break ; \
 159                 fi ; \
 160                 if [ $$i = end ] ; then exit 1 ; fi ; \
 161         done
 162         cp $(BOOTIMAGE) $(obj)/isoimage/linux
 163         echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
 164         if [ -f '$(FDINITRD)' ] ; then \
 165                 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
 166         fi
 167         mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
 168                 -no-emul-boot -boot-load-size 4 -boot-info-table \
 169                 $(obj)/isoimage
 170         rm -rf $(obj)/isoimage
 171
 172 zlilo: $(BOOTIMAGE)
 173         if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 174         if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 175         cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
 176         cp System.map $(INSTALL_PATH)/
 177         if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 178
 179 install:
 180         sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"