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 video-mode.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:  asflags-y := $(SVGA_MODE) $(RAMDISK)
  76 $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
  77 $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
  78 $(obj)/bzImage: BUILDFLAGS   := -b
  79
  80 quiet_cmd_image = BUILD   $@
  81 cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
  82             $(obj)/vmlinux.bin $(ROOT_DEV) > $@
  83
  84 $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
  85                               $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  86         $(call if_changed,image)
  87         @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  88
  89 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  90 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  91         $(call if_changed,objcopy)
  92
  93 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  94
  95 sed-offsets := -e 's/^00*/0/' \
  96         -e 's/^\([0-9a-fA-F]*\) . \(input_data\|input_data_end\)$$/\#define \2 0x\1/p'
  97
  98 quiet_cmd_offsets = OFFSETS $@
  99       cmd_offsets = $(NM) $< | sed -n $(sed-offsets) > $@
 100
 101 $(obj)/offsets.h: $(obj)/compressed/vmlinux FORCE
 102         $(call if_changed,offsets)
 103
 104 targets += offsets.h
 105
 106 AFLAGS_header.o += -I$(obj)
 107 $(obj)/header.o: $(obj)/offsets.h
 108
 109 LDFLAGS_setup.elf       := -T
 110 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
 111         $(call if_changed,ld)
 112
 113 OBJCOPYFLAGS_setup.bin  := -O binary
 114 $(obj)/setup.bin: $(obj)/setup.elf FORCE
 115         $(call if_changed,objcopy)
 116
 117 $(obj)/compressed/vmlinux: FORCE
 118         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 119
 120 # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
 121 FDARGS =
 122 # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
 123 FDINITRD =
 124
 125 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 126
 127 $(obj)/mtools.conf: $(src)/mtools.conf.in
 128         sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 129
 130 # This requires write access to /dev/fd0
 131 zdisk: $(BOOTIMAGE) $(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 ; \
 138         fi
 139         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux  ; sync
 140
 141 # These require being root or having syslinux 2.02 or higher installed
 142 fdimage fdimage144: $(BOOTIMAGE) $(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 ; \
 150         fi
 151         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux  ; sync
 152
 153 fdimage288: $(BOOTIMAGE) $(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 ; \
 161         fi
 162         MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux  ; sync
 163
 164 isoimage: $(BOOTIMAGE)
 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/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
 170                         break ; \
 171                 fi ; \
 172                 if [ $$i = end ] ; then exit 1 ; fi ; \
 173         done
 174         cp $(BOOTIMAGE) $(obj)/isoimage/linux
 175         echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
 176         if [ -f '$(FDINITRD)' ] ; then \
 177                 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
 178         fi
 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 \
 181                 $(obj)/isoimage
 182         isohybrid $(obj)/image.iso 2>/dev/null || true
 183         rm -rf $(obj)/isoimage
 184
 185 zlilo: $(BOOTIMAGE)
 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 $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
 189         cp System.map $(INSTALL_PATH)/
 190         if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 191
 192 install:
 193         sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"