Makefile 3.7 KB

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  1. #
  2. # x86_64/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" and "archdep" for cleaning up and making dependencies for
  7. # this architecture
  8. #
  9. # This file is subject to the terms and conditions of the GNU General Public
  10. # License. See the file "COPYING" in the main directory of this archive
  11. # for more details.
  12. #
  13. # Copyright (C) 1994 by Linus Torvalds
  14. #
  15. # 19990713 Artur Skawina <skawina@geocities.com>
  16. # Added '-march' and '-mpreferred-stack-boundary' support
  17. # 20000913 Pavel Machek <pavel@suse.cz>
  18. # Converted for x86_64 architecture
  19. # 20010105 Andi Kleen, add IA32 compiler.
  20. # ....and later removed it again....
  21. #
  22. # $Id: Makefile,v 1.31 2002/03/22 15:56:07 ak Exp $
  23. LDFLAGS := -m elf_x86_64
  24. OBJCOPYFLAGS := -O binary -R .note -R .comment -S
  25. LDFLAGS_vmlinux :=
  26. CHECKFLAGS += -D__x86_64__ -m64
  27. cflags-y :=
  28. cflags-kernel-y :=
  29. cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
  30. cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
  31. cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
  32. cflags-y += -m64
  33. cflags-y += -mno-red-zone
  34. cflags-y += -mcmodel=kernel
  35. cflags-y += -pipe
  36. cflags-kernel-$(CONFIG_REORDER) += -ffunction-sections
  37. # this makes reading assembly source easier, but produces worse code
  38. # actually it makes the kernel smaller too.
  39. cflags-y += -fno-reorder-blocks
  40. cflags-y += -Wno-sign-compare
  41. ifneq ($(CONFIG_UNWIND_INFO),y)
  42. cflags-y += -fno-asynchronous-unwind-tables
  43. endif
  44. ifneq ($(CONFIG_DEBUG_INFO),y)
  45. # -fweb shrinks the kernel a bit, but the difference is very small
  46. # it also messes up debugging, so don't use it for now.
  47. #cflags-y += $(call cc-option,-fweb)
  48. endif
  49. # -funit-at-a-time shrinks the kernel .text considerably
  50. # unfortunately it makes reading oopses harder.
  51. cflags-y += $(call cc-option,-funit-at-a-time)
  52. # prevent gcc from generating any FP code by mistake
  53. cflags-y += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
  54. CFLAGS += $(cflags-y)
  55. CFLAGS_KERNEL += $(cflags-kernel-y)
  56. AFLAGS += -m64
  57. head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
  58. libs-y += arch/x86_64/lib/
  59. core-y += arch/x86_64/kernel/ \
  60. arch/x86_64/mm/ \
  61. arch/x86_64/crypto/
  62. core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/
  63. drivers-$(CONFIG_PCI) += arch/x86_64/pci/
  64. drivers-$(CONFIG_OPROFILE) += arch/x86_64/oprofile/
  65. boot := arch/x86_64/boot
  66. PHONY += bzImage bzlilo install archmrproper \
  67. fdimage fdimage144 fdimage288 isoimage archclean
  68. #Default target when executing "make"
  69. all: bzImage
  70. BOOTIMAGE := arch/x86_64/boot/bzImage
  71. KBUILD_IMAGE := $(BOOTIMAGE)
  72. bzImage: vmlinux
  73. $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
  74. bzlilo: vmlinux
  75. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
  76. bzdisk: vmlinux
  77. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
  78. fdimage fdimage144 fdimage288 isoimage: vmlinux
  79. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
  80. install:
  81. $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
  82. archclean:
  83. $(Q)$(MAKE) $(clean)=$(boot)
  84. define archhelp
  85. echo '* bzImage - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
  86. echo ' install - Install kernel using'
  87. echo ' (your) ~/bin/installkernel or'
  88. echo ' (distribution) /sbin/installkernel or'
  89. echo ' install to $$(INSTALL_PATH) and run lilo'
  90. echo ' bzdisk - Create a boot floppy in /dev/fd0'
  91. echo ' fdimage - Create a boot floppy image'
  92. echo ' isoimage - Create a boot CD-ROM image'
  93. endef
  94. CLEAN_FILES += arch/$(ARCH)/boot/fdimage \
  95. arch/$(ARCH)/boot/image.iso \
  96. arch/$(ARCH)/boot/mtools.conf