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 targets         += $(setup-y)
  43 hostprogs-y     := tools/build
  44
  45 HOSTCFLAGS_build.o := $(LINUXINCLUDE)
  46
  47 # ---------------------------------------------------------------------------
  48
  49 # How to compile the 16-bit code.  Note we always compile for -march=i386,
  50 # that way we can complain to the user if the CPU is insufficient.
  51 cflags-i386   :=
  52 cflags-x86_64 := -m32
  53 CFLAGS          := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
  54                    $(cflags-$(ARCH)) \
  55                    -Wall -Wstrict-prototypes \
  56                    -march=i386 -mregparm=3 \
  57                    -include $(srctree)/$(src)/code16gcc.h \
  58                    -fno-strict-aliasing -fomit-frame-pointer \
  59                    $(call cc-option, -ffreestanding) \
  60                    $(call cc-option, -fno-toplevel-reorder,\
  61                         $(call cc-option, -fno-unit-at-a-time)) \
  62                    $(call cc-option, -fno-stack-protector) \
  63                    $(call cc-option, -mpreferred-stack-boundary=2)
  64 AFLAGS          := $(CFLAGS) -D__ASSEMBLY__
  65
  66 $(obj)/zImage:  IMAGE_OFFSET := 0x1000
  67 $(obj)/zImage:  EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK)
  68 $(obj)/bzImage: IMAGE_OFFSET := 0x100000
  69 $(obj)/bzImage: EXTRA_CFLAGS := -D__BIG_KERNEL__
  70 $(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
  71 $(obj)/bzImage: BUILDFLAGS   := -b
  72
  73 quiet_cmd_image = BUILD   $@
  74 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
  75             $(obj)/vmlinux.bin $(ROOT_DEV) > $@
  76
  77 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
  78                               $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  79         $(call if_changed,image)
  80         @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  81
  82 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  83         $(call if_changed,objcopy)
  84
  85 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  86
  87 LDFLAGS_setup.elf       := -T
  88 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
  89         $(call if_changed,ld)
  90
  91 OBJCOPYFLAGS_setup.bin  := -O binary
  92
  93 $(obj)/setup.bin: $(obj)/setup.elf FORCE
  94         $(call if_changed,objcopy)
  95
  96 $(obj)/compressed/vmlinux: FORCE
  97         $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
  98
  99 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
 100 FDARGS =
 101 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
 102 FDINITRD =
 103
 104 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 105
 106 $(obj)/mtools.conf: $(src)/mtools.conf.in
 107         sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 108
 109 # This requires write access to /dev/fd0
 110 zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
 111         MTOOLSRC=$(obj)/mtools.conf mformat a:                  ; sync
 112         syslinux /dev/fd0                                       ; sync
 113         echo '$(image_cmdline)' | \
 114                 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
 115         if [ -f '$(FDINITRD)' ] ; then \
 116                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
 117         fi
 118         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux  ; sync
 119
 120 # These require being root or having syslinux 2.02 or higher installed
 121 fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
 122         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
 123         MTOOLSRC=$(obj)/mtools.conf mformat v:                  ; sync
 124         syslinux $(obj)/fdimage                                 ; sync
 125         echo '$(image_cmdline)' | \
 126                 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
 127         if [ -f '$(FDINITRD)' ] ; then \
 128                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
 129         fi
 130         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux  ; sync
 131
 132 fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
 133         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
 134         MTOOLSRC=$(obj)/mtools.conf mformat w:                  ; sync
 135         syslinux $(obj)/fdimage                                 ; sync
 136         echo '$(image_cmdline)' | \
 137                 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
 138         if [ -f '$(FDINITRD)' ] ; then \
 139                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
 140         fi
 141         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux  ; sync
 142
 143 isoimage: $(BOOTIMAGE)
 144         -rm -rf $(obj)/isoimage
 145         mkdir $(obj)/isoimage
 146         for i in lib lib64 share end ; do \
 147                 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
 148                         cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
 149                         break ; \
 150                 fi ; \
 151                 if [ $$i = end ] ; then exit 1 ; fi ; \
 152         done
 153         cp $(BOOTIMAGE) $(obj)/isoimage/linux
 154         echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
 155         if [ -f '$(FDINITRD)' ] ; then \
 156                 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
 157         fi
 158         mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
 159                 -no-emul-boot -boot-load-size 4 -boot-info-table \
 160                 $(obj)/isoimage
 161         rm -rf $(obj)/isoimage
 162
 163 zlilo: $(BOOTIMAGE)
 164         if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 165         if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 166         cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
 167         cp System.map $(INSTALL_PATH)/
 168         if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 169
 170 install:
 171         sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"