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 KASAN_SANITIZE                  := n
  13 OBJECT_FILES_NON_STANDARD       := y
  14
  15 # Kernel does not boot with kcov instrumentation here.
  16 # One of the problems observed was insertion of __sanitizer_cov_trace_pc()
  17 # callback into middle of per-cpu data enabling code. Thus the callback observed
  18 # inconsistent state and crashed. We are interested mostly in syscall coverage,
  19 # so boot code is not interesting anyway.
  20 KCOV_INSTRUMENT         := n
  21
  22 # If you want to preset the SVGA mode, uncomment the next line and
  23 # set SVGA_MODE to whatever number you want.
  24 # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
  25 # The number is the same as you would ordinarily press at bootup.
  26
  27 SVGA_MODE       := -DSVGA_MODE=NORMAL_VGA
  28
  29 targets         := vmlinux.bin setup.bin setup.elf bzImage
  30 targets         += fdimage fdimage144 fdimage288 image.iso mtools.conf
  31 subdir-         := compressed
  32
  33 setup-y         += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
  34 setup-y         += early_serial_console.o edd.o header.o main.o memory.o
  35 setup-y         += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
  36 setup-y         += video-mode.o version.o
  37 setup-$(CONFIG_X86_APM_BOOT) += apm.o
  38
  39 # The link order of the video-*.o modules can matter.  In particular,
  40 # video-vga.o *must* be listed first, followed by video-vesa.o.
  41 # Hardware-specific drivers should follow in the order they should be
  42 # probed, and video-bios.o should typically be last.
  43 setup-y         += video-vga.o
  44 setup-y         += video-vesa.o
  45 setup-y         += video-bios.o
  46
  47 targets         += $(setup-y)
  48 hostprogs-y     := tools/build
  49 hostprogs-$(CONFIG_X86_FEATURE_NAMES) += mkcpustr
  50
  51 HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
  52                     -include include/generated/autoconf.h \
  53                     -D__EXPORTED_HEADERS__
  54
  55 ifdef CONFIG_X86_FEATURE_NAMES
  56 $(obj)/cpu.o: $(obj)/cpustr.h
  57
  58 quiet_cmd_cpustr = CPUSTR  $@
  59       cmd_cpustr = $(obj)/mkcpustr > $@
  60 targets += cpustr.h
  61 $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
  62         $(call if_changed,cpustr)
  63 endif
  64 clean-files += cpustr.h
  65
  66 # ---------------------------------------------------------------------------
  67
  68 KBUILD_CFLAGS   := $(USERINCLUDE) $(REALMODE_CFLAGS) -D_SETUP
  69 KBUILD_AFLAGS   := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  70 GCOV_PROFILE := n
  71 UBSAN_SANITIZE := n
  72
  73 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
  74
  75 quiet_cmd_image = BUILD   $@
  76 cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
  77                                $(obj)/zoffset.h $@
  78
  79 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  80         $(call if_changed,image)
  81         @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  82
  83 OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  84 $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  85         $(call if_changed,objcopy)
  86
  87 SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  88
  89 sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
  90
  91 quiet_cmd_zoffset = ZOFFSET $@
  92       cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
  93
  94 targets += zoffset.h
  95 $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
  96         $(call if_changed,zoffset)
  97
  98
  99 AFLAGS_header.o += -I$(objtree)/$(obj)
 100 $(obj)/header.o: $(obj)/zoffset.h
 101
 102 LDFLAGS_setup.elf       := -T
 103 $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
 104         $(call if_changed,ld)
 105
 106 OBJCOPYFLAGS_setup.bin  := -O binary
 107 $(obj)/setup.bin: $(obj)/setup.elf FORCE
 108         $(call if_changed,objcopy)
 109
 110 $(obj)/compressed/vmlinux: FORCE
 111         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 112
 113 # Set this if you want to pass append arguments to the
 114 # bzdisk/fdimage/isoimage kernel
 115 FDARGS =
 116 # Set this if you want an initrd included with the
 117 # bzdisk/fdimage/isoimage kernel
 118 FDINITRD =
 119
 120 image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 121
 122 $(obj)/mtools.conf: $(src)/mtools.conf.in
 123         sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 124
 125 # This requires write access to /dev/fd0
 126 bzdisk: $(obj)/bzImage $(obj)/mtools.conf
 127         MTOOLSRC=$(obj)/mtools.conf mformat a:                  ; sync
 128         syslinux /dev/fd0                                       ; sync
 129         echo '$(image_cmdline)' | \
 130                 MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
 131         if [ -f '$(FDINITRD)' ] ; then \
 132                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
 133         fi
 134         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux        ; sync
 135
 136 # These require being root or having syslinux 2.02 or higher installed
 137 fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
 138         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
 139         MTOOLSRC=$(obj)/mtools.conf mformat v:                  ; sync
 140         syslinux $(obj)/fdimage                                 ; sync
 141         echo '$(image_cmdline)' | \
 142                 MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
 143         if [ -f '$(FDINITRD)' ] ; then \
 144                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
 145         fi
 146         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux        ; sync
 147
 148 fdimage288: $(obj)/bzImage $(obj)/mtools.conf
 149         dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
 150         MTOOLSRC=$(obj)/mtools.conf mformat w:                  ; sync
 151         syslinux $(obj)/fdimage                                 ; sync
 152         echo '$(image_cmdline)' | \
 153                 MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
 154         if [ -f '$(FDINITRD)' ] ; then \
 155                 MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
 156         fi
 157         MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux        ; sync
 158
 159 isoimage: $(obj)/bzImage
 160         -rm -rf $(obj)/isoimage
 161         mkdir $(obj)/isoimage
 162         for i in lib lib64 share end ; do \
 163                 if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
 164                         cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
 165                         if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
 166                                 cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
 167                         fi ; \
 168                         break ; \
 169                 fi ; \
 170                 if [ $$i = end ] ; then exit 1 ; fi ; \
 171         done
 172         cp $(obj)/bzImage $(obj)/isoimage/linux
 173         echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
 174         if [ -f '$(FDINITRD)' ] ; then \
 175                 cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
 176         fi
 177         mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
 178                 -no-emul-boot -boot-load-size 4 -boot-info-table \
 179                 $(obj)/isoimage
 180         isohybrid $(obj)/image.iso 2>/dev/null || true
 181         rm -rf $(obj)/isoimage
 182
 183 bzlilo: $(obj)/bzImage
 184         if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
 185         if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
 186         cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
 187         cp System.map $(INSTALL_PATH)/
 188         if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
 189
 190 install:
 191         sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
 192                 System.map "$(INSTALL_PATH)"