Makefile_32 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. # BITS is used as extension for files which are available in a 32 bit
  20. # and a 64 bit version to simplify shared Makefiles.
  21. # e.g.: obj-y += foo_$(BITS).o
  22. BITS := 32
  23. export BITS
  24. HAS_BIARCH := $(call cc-option-yn, -m32)
  25. ifeq ($(HAS_BIARCH),y)
  26. AS := $(AS) --32
  27. LD := $(LD) -m elf_i386
  28. CC := $(CC) -m32
  29. endif
  30. LDFLAGS := -m elf_i386
  31. OBJCOPYFLAGS := -O binary -R .note -R .comment -S
  32. ifdef CONFIG_RELOCATABLE
  33. LDFLAGS_vmlinux := --emit-relocs
  34. endif
  35. CHECKFLAGS += -D__i386__
  36. KBUILD_CFLAGS += -pipe -msoft-float -mregparm=3 -freg-struct-return
  37. # prevent gcc from keeping the stack 16 byte aligned
  38. KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
  39. # CPU-specific tuning. Anything which can be shared with UML should go here.
  40. include $(srctree)/arch/x86/Makefile_32.cpu
  41. # temporary until string.h is fixed
  42. cflags-y += -ffreestanding
  43. # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
  44. # a lot more stack due to the lack of sharing of stacklots:
  45. KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
  46. # do binutils support CFI?
  47. cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
  48. KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
  49. # is .cfi_signal_frame supported too?
  50. cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
  51. KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
  52. KBUILD_CFLAGS += $(cflags-y)
  53. # Default subarch .c files
  54. mcore-y := arch/x86/mach-default
  55. # Voyager subarch support
  56. mflags-$(CONFIG_X86_VOYAGER) := -Iinclude/asm-x86/mach-voyager
  57. mcore-$(CONFIG_X86_VOYAGER) := arch/x86/mach-voyager
  58. # VISWS subarch support
  59. mflags-$(CONFIG_X86_VISWS) := -Iinclude/asm-x86/mach-visws
  60. mcore-$(CONFIG_X86_VISWS) := arch/x86/mach-visws
  61. # NUMAQ subarch support
  62. mflags-$(CONFIG_X86_NUMAQ) := -Iinclude/asm-x86/mach-numaq
  63. mcore-$(CONFIG_X86_NUMAQ) := arch/x86/mach-default
  64. # BIGSMP subarch support
  65. mflags-$(CONFIG_X86_BIGSMP) := -Iinclude/asm-x86/mach-bigsmp
  66. mcore-$(CONFIG_X86_BIGSMP) := arch/x86/mach-default
  67. #Summit subarch support
  68. mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-x86/mach-summit
  69. mcore-$(CONFIG_X86_SUMMIT) := arch/x86/mach-default
  70. # generic subarchitecture
  71. mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-x86/mach-generic
  72. mcore-$(CONFIG_X86_GENERICARCH) := arch/x86/mach-default
  73. core-$(CONFIG_X86_GENERICARCH) += arch/x86/mach-generic/
  74. # ES7000 subarch support
  75. mflags-$(CONFIG_X86_ES7000) := -Iinclude/asm-x86/mach-es7000
  76. mcore-$(CONFIG_X86_ES7000) := arch/x86/mach-default
  77. core-$(CONFIG_X86_ES7000) := arch/x86/mach-es7000/
  78. # Xen paravirtualization support
  79. core-$(CONFIG_XEN) += arch/x86/xen/
  80. # lguest paravirtualization support
  81. core-$(CONFIG_LGUEST_GUEST) += arch/x86/lguest/
  82. # default subarch .h files
  83. mflags-y += -Iinclude/asm-x86/mach-default
  84. head-y := arch/x86/kernel/head_32.o arch/x86/kernel/init_task.o
  85. libs-y += arch/x86/lib/
  86. core-y += arch/x86/kernel/ \
  87. arch/x86/mm/ \
  88. $(mcore-y)/ \
  89. arch/x86/crypto/ \
  90. arch/x86/vdso/
  91. drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
  92. drivers-$(CONFIG_PCI) += arch/x86/pci/
  93. # must be linked after kernel/
  94. drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
  95. drivers-$(CONFIG_PM) += arch/x86/power/
  96. drivers-$(CONFIG_FB) += arch/x86/video/
  97. KBUILD_CFLAGS += $(mflags-y)
  98. KBUILD_AFLAGS += $(mflags-y)
  99. boot := arch/x86/boot
  100. PHONY += zImage bzImage compressed zlilo bzlilo \
  101. zdisk bzdisk fdimage fdimage144 fdimage288 isoimage install
  102. all: bzImage
  103. # KBUILD_IMAGE specify target image being built
  104. KBUILD_IMAGE := $(boot)/bzImage
  105. zImage zlilo zdisk: KBUILD_IMAGE := arch/x86/boot/zImage
  106. zImage bzImage: vmlinux
  107. $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
  108. $(Q)mkdir -p $(objtree)/arch/i386/boot
  109. $(Q)ln -fsn ../../x86/boot/bzImage $(objtree)/arch/i386/boot/bzImage
  110. compressed: zImage
  111. zlilo bzlilo: vmlinux
  112. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
  113. zdisk bzdisk: vmlinux
  114. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
  115. fdimage fdimage144 fdimage288 isoimage: vmlinux
  116. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
  117. install: vdso_install
  118. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
  119. PHONY += vdso_install
  120. vdso_install:
  121. $(Q)$(MAKE) $(build)=arch/x86/vdso $@
  122. archclean:
  123. $(Q)rm -rf $(objtree)/arch/i386
  124. $(Q)rm -rf $(objtree)/arch/x86_64
  125. $(Q)$(MAKE) $(clean)=arch/x86/boot
  126. define archhelp
  127. echo '* bzImage - Compressed kernel image (arch/x86/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/x86/boot/fdimage \
  137. arch/x86/boot/image.iso \
  138. arch/x86/boot/mtools.conf