Makefile 5.8 KB

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  1. #
  2. # i386/Makefile
  3. #
  4. # This file is included by the global makefile so that you can add your own
  5. # architecture-specific flags and dependencies. Remember to do have actions
  6. # for "archclean" cleaning up for this architecture.
  7. #
  8. # This file is subject to the terms and conditions of the GNU General Public
  9. # License. See the file "COPYING" in the main directory of this archive
  10. # for more details.
  11. #
  12. # Copyright (C) 1994 by Linus Torvalds
  13. #
  14. # 19990713 Artur Skawina <skawina@geocities.com>
  15. # Added '-march' and '-mpreferred-stack-boundary' support
  16. #
  17. # 20050320 Kianusch Sayah Karadji <kianusch@sk-tech.net>
  18. # Added support for GEODE CPU
  19. # Fill in SRCARCH
  20. SRCARCH := x86
  21. # BITS is used as extension for files which are available in a 32 bit
  22. # and a 64 bit version to simplify shared Makefiles.
  23. # e.g.: obj-y += foo_$(BITS).o
  24. BITS := 32
  25. export BITS
  26. HAS_BIARCH := $(call cc-option-yn, -m32)
  27. ifeq ($(HAS_BIARCH),y)
  28. AS := $(AS) --32
  29. LD := $(LD) -m elf_i386
  30. CC := $(CC) -m32
  31. endif
  32. LDFLAGS := -m elf_i386
  33. OBJCOPYFLAGS := -O binary -R .note -R .comment -S
  34. ifdef CONFIG_RELOCATABLE
  35. LDFLAGS_vmlinux := --emit-relocs
  36. endif
  37. CHECKFLAGS += -D__i386__
  38. KBUILD_CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
  39. # prevent gcc from keeping the stack 16 byte aligned
  40. KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
  41. # CPU-specific tuning. Anything which can be shared with UML should go here.
  42. include $(srctree)/arch/i386/Makefile.cpu
  43. # temporary until string.h is fixed
  44. cflags-y += -ffreestanding
  45. # this works around some issues with generating unwind tables in older gccs
  46. # newer gccs do it by default
  47. cflags-y += -maccumulate-outgoing-args
  48. # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
  49. # a lot more stack due to the lack of sharing of stacklots:
  50. KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
  51. # do binutils support CFI?
  52. cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
  53. KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
  54. # is .cfi_signal_frame supported too?
  55. cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
  56. KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
  57. KBUILD_CFLAGS += $(cflags-y)
  58. # Default subarch .c files
  59. mcore-y := arch/x86/mach-default
  60. # Voyager subarch support
  61. mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
  62. mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager
  63. # VISWS subarch support
  64. mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
  65. mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws
  66. # NUMAQ subarch support
  67. mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq
  68. mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default
  69. # BIGSMP subarch support
  70. mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp
  71. mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default
  72. #Summit subarch support
  73. mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
  74. mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default
  75. # generic subarchitecture
  76. mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-x86/mach-generic
  77. mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default
  78. core-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
  79. # ES7000 subarch support
  80. mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
  81. mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default
  82. core-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
  83. # Xen paravirtualization support
  84. core-$(CONFIG_XEN) += arch/x86/xen/
  85. # lguest paravirtualization support
  86. core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
  87. # default subarch .h files
  88. mflags-y += -Iinclude/asm-x86/mach-default
  89. head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
  90. libs-y += arch/x86/lib/
  91. core-y += arch/x86/kernel/ \
  92. arch/x86/mm/ \
  93. $(mcore-y)/ \
  94. arch/x86/crypto/
  95. drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
  96. drivers-$(CONFIG_PCI) += arch/x86/pci/
  97. # must be linked after kernel/
  98. drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
  99. drivers-$(CONFIG_PM) += arch/x86/power/
  100. drivers-$(CONFIG_FB) += arch/x86/video/
  101. KBUILD_CFLAGS += $(mflags-y)
  102. KBUILD_AFLAGS += $(mflags-y)
  103. boot := arch/x86/boot
  104. PHONY += zImage bzImage compressed zlilo bzlilo \
  105. zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
  106. all: bzImage
  107. # KBUILD_IMAGE specify target image being built
  108. KBUILD_IMAGE := $(boot)/bzImage
  109. zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
  110. zImage bzImage: vmlinux
  111. $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
  112. $(Q)mkdir -p $(objtree)/arch/i386/boot
  113. $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
  114. compressed: zImage
  115. zlilo bzlilo: vmlinux
  116. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
  117. zdisk bzdisk: vmlinux
  118. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
  119. fdimage fdimage144 fdimage288 isoimage: vmlinux
  120. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
  121. install:
  122. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
  123. archclean:
  124. $(Q)rm -rf $(objtree)/arch/i386/boot
  125. $(Q)$(MAKE) $(clean)=arch/x86/boot
  126. define archhelp
  127. echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
  128. echo ' install - Install kernel using'
  129. echo ' (your) ~/bin/installkernel or'
  130. echo ' (distribution) /sbin/installkernel or'
  131. echo ' install to $$(INSTALL_PATH) and run lilo'
  132. echo ' bzdisk - Create a boot floppy in /dev/fd0'
  133. echo ' fdimage - Create a boot floppy image'
  134. echo ' isoimage - Create a boot CD-ROM image'
  135. endef
  136. CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
  137. arch/$(ARCH)/boot/image.iso \
  138. arch/$(ARCH)/boot/mtools.conf