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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
  24 LDFLAGS         := -m elf_x86_64
  25 OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
  26 LDFLAGS_vmlinux :=
  27
  28 CHECKFLAGS      += -D__x86_64__ -m64
  29
  30 cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
  31 cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
  32 CFLAGS += $(cflags-y)
  33
  34 CFLAGS += -mno-red-zone
  35 CFLAGS += -mcmodel=kernel
  36 CFLAGS += -pipe
  37 # this makes reading assembly source easier, but produces worse code
  38 # actually it makes the kernel smaller too.
  39 CFLAGS += -fno-reorder-blocks
  40 CFLAGS += -Wno-sign-compare
  41 ifneq ($(CONFIG_DEBUG_INFO),y)
  42 CFLAGS += -fno-asynchronous-unwind-tables
  43 # -fweb shrinks the kernel a bit, but the difference is very small
  44 # it also messes up debugging, so don't use it for now.
  45 #CFLAGS += $(call cc-option,-fweb)
  46 endif
  47 # -funit-at-a-time shrinks the kernel .text considerably
  48 # unfortunately it makes reading oopses harder.
  49 CFLAGS += $(call cc-option,-funit-at-a-time)
  50 # prevent gcc from generating any FP code by mistake
  51 CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
  52
  53 head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o
  54
  55 libs-y                                  += arch/x86_64/lib/
  56 core-y                                  += arch/x86_64/kernel/ \
  57                                            arch/x86_64/mm/ \
  58                                            arch/x86_64/crypto/
  59 core-$(CONFIG_IA32_EMULATION)           += arch/x86_64/ia32/
  60 drivers-$(CONFIG_PCI)                   += arch/x86_64/pci/
  61 drivers-$(CONFIG_OPROFILE)              += arch/x86_64/oprofile/
  62
  63 boot := arch/x86_64/boot
  64
  65 .PHONY: bzImage bzlilo install archmrproper \
  66         fdimage fdimage144 fdimage288 archclean
  67
  68 #Default target when executing "make"
  69 all: bzImage
  70
  71 BOOTIMAGE                     := arch/x86_64/boot/bzImage
  72 KBUILD_IMAGE                  := $(BOOTIMAGE)
  73
  74 bzImage: vmlinux
  75         $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
  76
  77 bzlilo: vmlinux
  78         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
  79
  80 bzdisk: vmlinux
  81         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
  82
  83 install fdimage fdimage144 fdimage288: vmlinux
  84         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
  85
  86 archclean:
  87         $(Q)$(MAKE) $(clean)=$(boot)
  88
  89 prepare: include/asm-$(ARCH)/offset.h
  90
  91 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
  92                                    include/config/MARKER
  93
  94 include/asm-$(ARCH)/offset.h: arch/$(ARCH)/kernel/asm-offsets.s
  95         $(call filechk,gen-asm-offsets)
  96
  97 CLEAN_FILES += include/asm-$(ARCH)/offset.h
  98
  99 define archhelp
 100   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
 101   echo  '  install      - Install kernel using'
 102   echo  '                  (your) ~/bin/installkernel or'
 103   echo  '                  (distribution) /sbin/installkernel or'
 104   echo  '                 install to $$(INSTALL_PATH) and run lilo'
 105 endef
 106
 107 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf
 108
 109