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 # Changed by many, many contributors over the years.
  10 #
  11
  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.
  16
  17 SVGA_MODE       := -DSVGA_MODE=NORMAL_VGA
  18
  19 targets         := vmlinux.bin setup.bin setup.elf bzImage
  20 targets         += fdimage fdimage144 fdimage288 image.iso mtools.conf
  21 subdir-         := compressed
  22
  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
  28
  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
  36
  37 targets         += $(setup-y)
  38 hostprogs-y     := mkcpustr tools/build
  39
  40 HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
  41                     -include include/generated/autoconf.h \
  42                     -D__EXPORTED_HEADERS__
  43
  44 $(obj)/cpu.o: $(obj)/cpustr.h
  45
  46 quiet_cmd_cpustr = CPUSTR  $@
  47       cmd_cpustr = $(obj)/mkcpustr > $@
  48 targets         += cpustr.h
  49 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
  50         $(call if_changed,cpustr)
  51
  52 # ---------------------------------------------------------------------------
  53
  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) -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 \
  62                    $(call cc-option, -ffreestanding) \
  63                    $(call cc-option, -fno-toplevel-reorder,\
  64                         $(call cc-option, -fno-unit-at-a-time)) \
  65                    $(call cc-option, -fno-stack-protector) \
  66                    $(call cc-option, -mpreferred-stack-boundary=2)
  67 KBUILD_CFLAGS   += $(call cc-option, -m32)
  68 KBUILD_AFLAGS   := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  69 GCOV_PROFILE := n
  70
  71 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
  72
  73 quiet_cmd_image = BUILD   $@
  74 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/zoffset.h > $@
  75
  76 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  77         $(call if_changed,image)
  78         @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  79
  80 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  81 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  82         $(call if_changed,objcopy)
  83
  84 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  85
  86 sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
  87
  88 quiet_cmd_voffset = VOFFSET $@
  89       cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
  90
  91 targets += voffset.h
  92 $(obj)/voffset.h: vmlinux FORCE
  93         $(call if_changed,voffset)
  94
  95 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'
  96
  97 quiet_cmd_zoffset = ZOFFSET $@
  98       cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
  99
 100 targets += zoffset.h
 101 $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
 102         $(call if_changed,zoffset)
 103
 104
 105 AFLAGS_header.o += -I$(obj)
 106 $(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
 107
 108 LDFLAGS_setup.elf       := -T
 109 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
 110         $(call if_changed,ld)
 111
 112 OBJCOPYFLAGS_setup.bin  := -O binary
 113 $(obj)/setup.bin: $(obj)/setup.elf FORCE
 114         $(call if_changed,objcopy)
 115
 116 $(obj)/compressed/vmlinux: FORCE
 117         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 118
 119 # Set this if you want to pass append arguments to the
 120 # bzdisk/fdimage/isoimage kernel
 121 FDARGS =
 122 # Set this if you want an initrd included with the
 123 # bzdisk/fdimage/isoimage kernel
 124 FDINITRD =
 125
 126 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 127
 128 $(obj)/mtools.conf: $(src)/mtools.conf.in
 129         sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 130
 131 # This requires write access to /dev/fd0
 132 bzdisk: $(obj)/bzImage $(obj)/mtools.conf
 133         MTOOLSRC=$(obj)/mtools.conf mformat a:                  ; sync
 134         syslinux /dev/fd0                                       ; sync
 135         echo '$(image_cmdline)' | \
 136                 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
 137         if [ -f '$(FDINITRD)' ] ; then \
 138                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
 139         fi
 140         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux        ; sync
 141
 142 # These require being root or having syslinux 2.02 or higher installed
 143 fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
 144         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
 145         MTOOLSRC=$(obj)/mtools.conf mformat v:                  ; sync
 146         syslinux $(obj)/fdimage                                 ; sync
 147         echo '$(image_cmdline)' | \
 148                 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
 149         if [ -f '$(FDINITRD)' ] ; then \
 150                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
 151         fi
 152         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux        ; sync
 153
 154 fdimage288: $(obj)/bzImage $(obj)/mtools.conf
 155         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
 156         MTOOLSRC=$(obj)/mtools.conf mformat w:                  ; sync
 157         syslinux $(obj)/fdimage                                 ; sync
 158         echo '$(image_cmdline)' | \
 159                 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
 160         if [ -f '$(FDINITRD)' ] ; then \
 161                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
 162         fi
 163         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux        ; sync
 164
 165 isoimage: $(obj)/bzImage
 166         -rm -rf $(obj)/isoimage
 167         mkdir $(obj)/isoimage
 168         for i in lib lib64 share end ; do \
 169                 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
 170                         cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
 171                         break ; \
 172                 fi ; \
 173                 if [ $$i = end ] ; then exit 1 ; fi ; \
 174         done
 175         cp $(obj)/bzImage $(obj)/isoimage/linux
 176         echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
 177         if [ -f '$(FDINITRD)' ] ; then \
 178                 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
 179         fi
 180         mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
 181                 -no-emul-boot -boot-load-size 4 -boot-info-table \
 182                 $(obj)/isoimage
 183         isohybrid $(obj)/image.iso 2>/dev/null || true
 184         rm -rf $(obj)/isoimage
 185
 186 bzlilo: $(obj)/bzImage
 187         if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 188         if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 189         cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
 190         cp System.map $(INSTALL_PATH)/
 191         if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 192
 193 install:
 194         sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
 195                 System.map "$(INSTALL_PATH)"