Makefile 6.7 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. # Changed by many, many contributors over the years.
  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. ROOT_DEV := CURRENT
  15. # If you want to preset the SVGA mode, uncomment the next line and
  16. # set SVGA_MODE to whatever number you want.
  17. # Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
  18. # The number is the same as you would ordinarily press at bootup.
  19. SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
  20. targets := vmlinux.bin setup.bin setup.elf bzImage
  21. targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
  22. subdir- := compressed
  23. setup-y += a20.o bioscall.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 regs.o string.o tty.o video.o video-mode.o
  26. setup-y += version.o
  27. setup-$(CONFIG_X86_APM_BOOT) += apm.o
  28. # The link order of the video-*.o modules can matter. In particular,
  29. # video-vga.o *must* be listed first, followed by video-vesa.o.
  30. # Hardware-specific drivers should follow in the order they should be
  31. # probed, and video-bios.o should typically be last.
  32. setup-y += video-vga.o
  33. setup-y += video-vesa.o
  34. setup-y += video-bios.o
  35. targets += $(setup-y)
  36. hostprogs-y := mkcpustr tools/build
  37. HOST_EXTRACFLAGS += $(LINUXINCLUDE)
  38. $(obj)/cpu.o: $(obj)/cpustr.h
  39. quiet_cmd_cpustr = CPUSTR $@
  40. cmd_cpustr = $(obj)/mkcpustr > $@
  41. targets += cpustr.h
  42. $(obj)/cpustr.h: $(obj)/mkcpustr FORCE
  43. $(call if_changed,cpustr)
  44. # ---------------------------------------------------------------------------
  45. # How to compile the 16-bit code. Note we always compile for -march=i386,
  46. # that way we can complain to the user if the CPU is insufficient.
  47. KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
  48. -DDISABLE_BRANCH_PROFILING \
  49. -Wall -Wstrict-prototypes \
  50. -march=i386 -mregparm=3 \
  51. -include $(srctree)/$(src)/code16gcc.h \
  52. -fno-strict-aliasing -fomit-frame-pointer \
  53. $(call cc-option, -ffreestanding) \
  54. $(call cc-option, -fno-toplevel-reorder,\
  55. $(call cc-option, -fno-unit-at-a-time)) \
  56. $(call cc-option, -fno-stack-protector) \
  57. $(call cc-option, -mpreferred-stack-boundary=2)
  58. KBUILD_CFLAGS += $(call cc-option, -m32)
  59. KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
  60. $(obj)/bzImage: asflags-y := $(SVGA_MODE)
  61. quiet_cmd_image = BUILD $@
  62. cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
  63. $(ROOT_DEV) > $@
  64. $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
  65. $(call if_changed,image)
  66. @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
  67. OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
  68. $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
  69. $(call if_changed,objcopy)
  70. SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
  71. sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
  72. quiet_cmd_voffset = VOFFSET $@
  73. cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
  74. targets += voffset.h
  75. $(obj)/voffset.h: vmlinux FORCE
  76. $(call if_changed,voffset)
  77. sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
  78. quiet_cmd_zoffset = ZOFFSET $@
  79. cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
  80. targets += zoffset.h
  81. $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
  82. $(call if_changed,zoffset)
  83. AFLAGS_header.o += -I$(obj)
  84. $(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
  85. LDFLAGS_setup.elf := -T
  86. $(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
  87. $(call if_changed,ld)
  88. OBJCOPYFLAGS_setup.bin := -O binary
  89. $(obj)/setup.bin: $(obj)/setup.elf FORCE
  90. $(call if_changed,objcopy)
  91. $(obj)/compressed/vmlinux: FORCE
  92. $(Q)$(MAKE) $(build)=$(obj)/compressed $@
  93. # Set this if you want to pass append arguments to the
  94. # bzdisk/fdimage/isoimage kernel
  95. FDARGS =
  96. # Set this if you want an initrd included with the
  97. # bzdisk/fdimage/isoimage kernel
  98. FDINITRD =
  99. image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
  100. $(obj)/mtools.conf: $(src)/mtools.conf.in
  101. sed -e 's|@OBJ@|$(obj)|g' < $< > $@
  102. # This requires write access to /dev/fd0
  103. bzdisk: $(obj)/bzImage $(obj)/mtools.conf
  104. MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
  105. syslinux /dev/fd0 ; sync
  106. echo '$(image_cmdline)' | \
  107. MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
  108. if [ -f '$(FDINITRD)' ] ; then \
  109. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
  110. fi
  111. MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
  112. # These require being root or having syslinux 2.02 or higher installed
  113. fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
  114. dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
  115. MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
  116. syslinux $(obj)/fdimage ; sync
  117. echo '$(image_cmdline)' | \
  118. MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
  119. if [ -f '$(FDINITRD)' ] ; then \
  120. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
  121. fi
  122. MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
  123. fdimage288: $(obj)/bzImage $(obj)/mtools.conf
  124. dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
  125. MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
  126. syslinux $(obj)/fdimage ; sync
  127. echo '$(image_cmdline)' | \
  128. MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
  129. if [ -f '$(FDINITRD)' ] ; then \
  130. MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
  131. fi
  132. MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
  133. isoimage: $(obj)/bzImage
  134. -rm -rf $(obj)/isoimage
  135. mkdir $(obj)/isoimage
  136. for i in lib lib64 share end ; do \
  137. if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
  138. cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
  139. break ; \
  140. fi ; \
  141. if [ $$i = end ] ; then exit 1 ; fi ; \
  142. done
  143. cp $(obj)/bzImage $(obj)/isoimage/linux
  144. echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
  145. if [ -f '$(FDINITRD)' ] ; then \
  146. cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
  147. fi
  148. mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
  149. -no-emul-boot -boot-load-size 4 -boot-info-table \
  150. $(obj)/isoimage
  151. isohybrid $(obj)/image.iso 2>/dev/null || true
  152. rm -rf $(obj)/isoimage
  153. bzlilo: $(obj)/bzImage
  154. if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
  155. if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
  156. cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
  157. cp System.map $(INSTALL_PATH)/
  158. if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
  159. install:
  160. sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
  161. System.map "$(INSTALL_PATH)"