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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
  20 HAS_BIARCH      := $(call cc-option-yn, -m32)
  21 ifeq ($(HAS_BIARCH),y)
  22 AS              := $(AS) --32
  23 LD              := $(LD) -m elf_i386
  24 CC              := $(CC) -m32
  25 endif
  26
  27 LDFLAGS         := -m elf_i386
  28 OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
  29 LDFLAGS_vmlinux :=
  30 CHECKFLAGS      += -D__i386__
  31
  32 CFLAGS += -pipe -msoft-float
  33
  34 # prevent gcc from keeping the stack 16 byte aligned
  35 CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
  36
  37 # CPU-specific tuning. Anything which can be shared with UML should go here.
  38 include $(srctree)/arch/i386/Makefile.cpu
  39
  40 cflags-$(CONFIG_REGPARM) += -mregparm=3
  41
  42 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
  43 # a lot more stack due to the lack of sharing of stacklots:
  44 CFLAGS                          += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call cc-option,-fno-unit-at-a-time); fi ;)
  45
  46 CFLAGS += $(cflags-y)
  47
  48 # Default subarch .c files
  49 mcore-y  := mach-default
  50
  51 # Voyager subarch support
  52 mflags-$(CONFIG_X86_VOYAGER)    := -Iinclude/asm-i386/mach-voyager
  53 mcore-$(CONFIG_X86_VOYAGER)     := mach-voyager
  54
  55 # VISWS subarch support
  56 mflags-$(CONFIG_X86_VISWS)      := -Iinclude/asm-i386/mach-visws
  57 mcore-$(CONFIG_X86_VISWS)       := mach-visws
  58
  59 # NUMAQ subarch support
  60 mflags-$(CONFIG_X86_NUMAQ)      := -Iinclude/asm-i386/mach-numaq
  61 mcore-$(CONFIG_X86_NUMAQ)       := mach-default
  62
  63 # BIGSMP subarch support
  64 mflags-$(CONFIG_X86_BIGSMP)     := -Iinclude/asm-i386/mach-bigsmp
  65 mcore-$(CONFIG_X86_BIGSMP)      := mach-default
  66
  67 #Summit subarch support
  68 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
  69 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
  70
  71 # generic subarchitecture
  72 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
  73 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
  74 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
  75
  76 # ES7000 subarch support
  77 mflags-$(CONFIG_X86_ES7000)     := -Iinclude/asm-i386/mach-es7000
  78 mcore-$(CONFIG_X86_ES7000)      := mach-default
  79 core-$(CONFIG_X86_ES7000)       := arch/i386/mach-es7000/
  80
  81 # default subarch .h files
  82 mflags-y += -Iinclude/asm-i386/mach-default
  83
  84 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
  85
  86 libs-y                                  += arch/i386/lib/
  87 core-y                                  += arch/i386/kernel/ \
  88                                            arch/i386/mm/ \
  89                                            arch/i386/$(mcore-y)/ \
  90                                            arch/i386/crypto/
  91 drivers-$(CONFIG_MATH_EMULATION)        += arch/i386/math-emu/
  92 drivers-$(CONFIG_PCI)                   += arch/i386/pci/
  93 # must be linked after kernel/
  94 drivers-$(CONFIG_OPROFILE)              += arch/i386/oprofile/
  95 drivers-$(CONFIG_PM)                    += arch/i386/power/
  96
  97 CFLAGS += $(mflags-y)
  98 AFLAGS += $(mflags-y)
  99
 100 boot := arch/i386/boot
 101
 102 .PHONY: zImage bzImage compressed zlilo bzlilo \
 103         zdisk bzdisk fdimage fdimage144 fdimage288 install
 104
 105 all: bzImage
 106
 107 # KBUILD_IMAGE specify target image being built
 108                     KBUILD_IMAGE := $(boot)/bzImage
 109 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
 110
 111 zImage bzImage: vmlinux
 112         $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
 113
 114 compressed: zImage
 115
 116 zlilo bzlilo: vmlinux
 117         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
 118
 119 zdisk bzdisk: vmlinux
 120         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
 121
 122 fdimage fdimage144 fdimage288: vmlinux
 123         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
 124
 125 install:
 126         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
 127
 128 archclean:
 129         $(Q)$(MAKE) $(clean)=arch/i386/boot
 130
 131 define archhelp
 132   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
 133   echo  '  install      - Install kernel using'
 134   echo  '                  (your) ~/bin/installkernel or'
 135   echo  '                  (distribution) /sbin/installkernel or'
 136   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 137   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
 138   echo  '  fdimage      - Create a boot floppy image'
 139 endef
 140
 141 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf