arch/x86_64/Makefile

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