arch/i386/Makefile

   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
  18 LDFLAGS         := -m elf_i386
  19 OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
  20 LDFLAGS_vmlinux :=
  21
  22 CFLAGS += -pipe
  23
  24 check_gcc = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi)
  25
  26 # prevent gcc from keeping the stack 16 byte aligned
  27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,)
  28
  29 align := $(subst -functions=0,,$(call check_gcc,-falign-functions=0,-malign-functions=0))
  30
  31 cflags-$(CONFIG_M386)           += -march=i386
  32 cflags-$(CONFIG_M486)           += -march=i486
  33 cflags-$(CONFIG_M586)           += -march=i586
  34 cflags-$(CONFIG_M586TSC)        += -march=i586
  35 cflags-$(CONFIG_M586MMX)        += $(call check_gcc,-march=pentium-mmx,-march=i586)
  36 cflags-$(CONFIG_M686)           += -march=i686
  37 cflags-$(CONFIG_MPENTIUMII)     += $(call check_gcc,-march=pentium2,-march=i686)
  38 cflags-$(CONFIG_MPENTIUMIII)    += $(call check_gcc,-march=pentium3,-march=i686)
  39 cflags-$(CONFIG_MPENTIUM4)      += $(call check_gcc,-march=pentium4,-march=i686)
  40 cflags-$(CONFIG_MK6)            += $(call check_gcc,-march=k6,-march=i586)
  41 cflags-$(CONFIG_MK7)            += $(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4)
  42 cflags-$(CONFIG_MK8)            += $(call check_gcc,-march=k8,$(call check_gcc,-march=athlon,-march=i686 $(align)-functions=4))
  43 cflags-$(CONFIG_MCRUSOE)        += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
  44 cflags-$(CONFIG_MWINCHIPC6)     += $(call check_gcc,-march=winchip-c6,-march=i586)
  45 cflags-$(CONFIG_MWINCHIP2)      += $(call check_gcc,-march=winchip2,-march=i586)
  46 cflags-$(CONFIG_MWINCHIP3D)     += -march=i586
  47 cflags-$(CONFIG_MCYRIXIII)      += $(call check_gcc,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
  48 cflags-$(CONFIG_MVIAC3_2)       += $(call check_gcc,-march=c3-2,-march=i686)
  49
  50 CFLAGS += $(cflags-y)
  51
  52 # Default subarch .c files
  53 mcore-y  := mach-default
  54
  55 # Voyager subarch support
  56 mflags-$(CONFIG_X86_VOYAGER)    := -Iinclude/asm-i386/mach-voyager
  57 mcore-$(CONFIG_X86_VOYAGER)     := mach-voyager
  58
  59 # VISWS subarch support
  60 mflags-$(CONFIG_X86_VISWS)      := -Iinclude/asm-i386/mach-visws
  61 mcore-$(CONFIG_X86_VISWS)       := mach-visws
  62
  63 # NUMAQ subarch support
  64 mflags-$(CONFIG_X86_NUMAQ)      := -Iinclude/asm-i386/mach-numaq
  65 mcore-$(CONFIG_X86_NUMAQ)       := mach-default
  66
  67 # BIGSMP subarch support
  68 mflags-$(CONFIG_X86_BIGSMP)     := -Iinclude/asm-i386/mach-bigsmp
  69 mcore-$(CONFIG_X86_BIGSMP)      := mach-default
  70
  71 #Summit subarch support
  72 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
  73 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
  74
  75 # generic subarchitecture
  76 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
  77 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
  78 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
  79
  80 # ES7000 subarch support
  81 mflags-$(CONFIG_X86_ES7000)     := -Iinclude/asm-i386/mach-es7000
  82 mcore-$(CONFIG_X86_ES7000)      := mach-es7000
  83
  84 # default subarch .h files
  85 mflags-y += -Iinclude/asm-i386/mach-default
  86
  87 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
  88
  89 libs-y                                  += arch/i386/lib/
  90 core-y                                  += arch/i386/kernel/ \
  91                                            arch/i386/mm/ \
  92                                            arch/i386/$(mcore-y)/
  93 drivers-$(CONFIG_MATH_EMULATION)        += arch/i386/math-emu/
  94 drivers-$(CONFIG_PCI)                   += arch/i386/pci/
  95 # must be linked after kernel/
  96 drivers-$(CONFIG_OPROFILE)              += arch/i386/oprofile/
  97
  98 CFLAGS += $(mflags-y)
  99 AFLAGS += $(mflags-y)
 100
 101 boot := arch/i386/boot
 102
 103 .PHONY: zImage bzImage compressed zlilo bzlilo \
 104         zdisk bzdisk fdimage fdimage144 fdimage288 install
 105
 106 all: bzImage
 107
 108 BOOTIMAGE=arch/i386/boot/bzImage
 109 zImage zlilo zdisk: BOOTIMAGE=arch/i386/boot/zImage
 110
 111 zImage bzImage: vmlinux
 112         $(Q)$(MAKE) $(build)=$(boot) $(BOOTIMAGE)
 113
 114 compressed: zImage
 115
 116 zlilo bzlilo: vmlinux
 117         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zlilo
 118
 119 zdisk bzdisk: vmlinux
 120         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) zdisk
 121
 122 install fdimage fdimage144 fdimage288: vmlinux
 123         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
 124
 125 prepare: include/asm-$(ARCH)/asm_offsets.h
 126 CLEAN_FILES += include/asm-$(ARCH)/asm_offsets.h
 127
 128 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
 129                                    include/config/MARKER
 130
 131 include/asm-$(ARCH)/asm_offsets.h: arch/$(ARCH)/kernel/asm-offsets.s
 132         $(call filechk,gen-asm-offsets)
 133
 134 archclean:
 135         $(Q)$(MAKE) $(clean)=arch/i386/boot
 136
 137 define archhelp
 138   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
 139   echo  '  install      - Install kernel using'
 140   echo  '                  (your) ~/bin/installkernel or'
 141   echo  '                  (distribution) /sbin/installkernel or'
 142   echo  '                  install to $$(INSTALL_PATH) and run lilo'
 143   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
 144   echo  '  fdimage      - Create a boot floppy image'
 145 endef
 146
 147 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf