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