Makefile 6.6 KB

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  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. # ROOT_DEV specifies the default root-device when making the image.
  11. # This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
  12. # the default of FLOPPY is used by 'build'.
  13. ROOT_DEV := CURRENT
  14. # If you want to preset the SVGA mode, uncomment the next line and
  15. # set SVGA_MODE to whatever number you want.
  16. # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
  17. # The number is the same as you would ordinarily press at bootup.
  18. SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
  19. # If you want the RAM disk device, define this to be the size in blocks.
  20. #RAMDISK := -DRAMDISK=512
  21. targets := vmlinux.bin setup.bin setup.elf zImage bzImage
  22. subdir- := compressed
  23. setup-y += a20.o cmdline.o copy.o cpu.o cpucheck.o edd.o
  24. setup-y += header.o main.o mca.o memory.o pm.o pmjump.o
  25. setup-y += printf.o string.o tty.o video.o video-mode.o version.o
  26. setup-$(CONFIG_X86_APM_BOOT) += apm.o
  27. # The link order of the video-*.o modules can matter. In particular,
  28. # video-vga.o *must* be listed first, followed by video-vesa.o.
  29. # Hardware-specific drivers should follow in the order they should be
  30. # probed, and video-bios.o should typically be last.
  31. setup-y += video-vga.o
  32. setup-y += video-vesa.o
  33. setup-y += video-bios.o
  34. targets += $(setup-y)
  35. hostprogs-y := mkcpustr tools/build
  36. HOST_EXTRACFLAGS += $(LINUXINCLUDE)
  37. $(obj)/cpu.o: $(obj)/cpustr.h
  38. quiet_cmd_cpustr = CPUSTR $@
  39. cmd_cpustr = $(obj)/mkcpustr > $@
  40. targets += cpustr.h
  41. $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
  42. $(call if_changed,cpustr)
  43. # ---------------------------------------------------------------------------
  44. # How to compile the 16-bit code. Note we always compile for -march=i386,
  45. # that way we can complain to the user if the CPU is insufficient.
  46. KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
  47. -Wall -Wstrict-prototypes \
  48. -march=i386 -mregparm=3 \
  49. -include $(srctree)/$(src)/code16gcc.h \
  50. -fno-strict-aliasing -fomit-frame-pointer \
  51. $(call cc-option, -ffreestanding) \
  52. $(call cc-option, -fno-toplevel-reorder,\
  53. $(call cc-option, -fno-unit-at-a-time)) \
  54. $(call cc-option, -fno-stack-protector) \
  55. $(call cc-option, -mpreferred-stack-boundary=2)
  56. KBUILD_CFLAGS += $(call cc-option,-m32)
  57. KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  58. $(obj)/zImage: asflags-y := $(SVGA_MODE) $(RAMDISK)
  59. $(obj)/bzImage: ccflags-y := -D__BIG_KERNEL__
  60. $(obj)/bzImage: asflags-y := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__
  61. $(obj)/bzImage: BUILDFLAGS := -b
  62. quiet_cmd_image = BUILD $@
  63. cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \
  64. $(obj)/vmlinux.bin $(ROOT_DEV) > $@
  65. $(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \
  66. $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  67. $(call if_changed,image)
  68. @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  69. OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  70. $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  71. $(call if_changed,objcopy)
  72. SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  73. sed-offsets := -e 's/^00*/0/' \
  74. -e 's/^\([0-9a-fA-F]*\) . \(input_data\|input_data_end\)$$/\#define \2 0x\1/p'
  75. quiet_cmd_offsets = OFFSETS $@
  76. cmd_offsets = $(NM) $< | sed -n $(sed-offsets) > $@
  77. $(obj)/offsets.h: $(obj)/compressed/vmlinux FORCE
  78. $(call if_changed,offsets)
  79. targets += offsets.h
  80. AFLAGS_header.o += -I$(obj)
  81. $(obj)/header.o: $(obj)/offsets.h
  82. LDFLAGS_setup.elf := -T
  83. $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
  84. $(call if_changed,ld)
  85. OBJCOPYFLAGS_setup.bin := -O binary
  86. $(obj)/setup.bin: $(obj)/setup.elf FORCE
  87. $(call if_changed,objcopy)
  88. $(obj)/compressed/vmlinux: FORCE
  89. $(Q)$(MAKE) $(build)=$(obj)/compressed $@
  90. # Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel
  91. FDARGS =
  92. # Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel
  93. FDINITRD =
  94. image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
  95. $(obj)/mtools.conf: $(src)/mtools.conf.in
  96. sed -e 's|@OBJ@|$(obj)|g' < $< > $@
  97. # This requires write access to /dev/fd0
  98. zdisk: $(BOOTIMAGE) $(obj)/mtools.conf
  99. MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
  100. syslinux /dev/fd0 ; sync
  101. echo '$(image_cmdline)' | \
  102. MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
  103. if [ -f '$(FDINITRD)' ] ; then \
  104. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
  105. fi
  106. MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync
  107. # These require being root or having syslinux 2.02 or higher installed
  108. fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf
  109. dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
  110. MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
  111. syslinux $(obj)/fdimage ; sync
  112. echo '$(image_cmdline)' | \
  113. MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
  114. if [ -f '$(FDINITRD)' ] ; then \
  115. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
  116. fi
  117. MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync
  118. fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf
  119. dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
  120. MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
  121. syslinux $(obj)/fdimage ; sync
  122. echo '$(image_cmdline)' | \
  123. MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
  124. if [ -f '$(FDINITRD)' ] ; then \
  125. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
  126. fi
  127. MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync
  128. isoimage: $(BOOTIMAGE)
  129. -rm -rf $(obj)/isoimage
  130. mkdir $(obj)/isoimage
  131. for i in lib lib64 share end ; do \
  132. if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
  133. cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
  134. break ; \
  135. fi ; \
  136. if [ $$i = end ] ; then exit 1 ; fi ; \
  137. done
  138. cp $(BOOTIMAGE) $(obj)/isoimage/linux
  139. echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
  140. if [ -f '$(FDINITRD)' ] ; then \
  141. cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
  142. fi
  143. mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
  144. -no-emul-boot -boot-load-size 4 -boot-info-table \
  145. $(obj)/isoimage
  146. isohybrid $(obj)/image.iso 2>/dev/null || true
  147. rm -rf $(obj)/isoimage
  148. zlilo: $(BOOTIMAGE)
  149. if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
  150. if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
  151. cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz
  152. cp System.map $(INSTALL_PATH)/
  153. if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
  154. install:
  155. sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)"