kbuild: full dependency check on asm-offsets.h
[linux-2.6.git] / 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 # 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 align := $(cc-option-align)
38 cflags-$(CONFIG_M386)           += -march=i386
39 cflags-$(CONFIG_M486)           += -march=i486
40 cflags-$(CONFIG_M586)           += -march=i586
41 cflags-$(CONFIG_M586TSC)        += -march=i586
42 cflags-$(CONFIG_M586MMX)        += $(call cc-option,-march=pentium-mmx,-march=i586)
43 cflags-$(CONFIG_M686)           += -march=i686
44 cflags-$(CONFIG_MPENTIUMII)     += -march=i686 $(call cc-option,-mtune=pentium2)
45 cflags-$(CONFIG_MPENTIUMIII)    += -march=i686 $(call cc-option,-mtune=pentium3)
46 cflags-$(CONFIG_MPENTIUMM)      += -march=i686 $(call cc-option,-mtune=pentium3)
47 cflags-$(CONFIG_MPENTIUM4)      += -march=i686 $(call cc-option,-mtune=pentium4)
48 cflags-$(CONFIG_MK6)            += -march=k6
49 # Please note, that patches that add -march=athlon-xp and friends are pointless.
50 # They make zero difference whatsosever to performance at this time.
51 cflags-$(CONFIG_MK7)            += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
52 cflags-$(CONFIG_MK8)            += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
53 cflags-$(CONFIG_MCRUSOE)        += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
54 cflags-$(CONFIG_MEFFICEON)      += -march=i686 $(call cc-option,-mtune=pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
55 cflags-$(CONFIG_MWINCHIPC6)     += $(call cc-option,-march=winchip-c6,-march=i586)
56 cflags-$(CONFIG_MWINCHIP2)      += $(call cc-option,-march=winchip2,-march=i586)
57 cflags-$(CONFIG_MWINCHIP3D)     += $(call cc-option,-march=winchip2,-march=i586)
58 cflags-$(CONFIG_MCYRIXIII)      += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
59 cflags-$(CONFIG_MVIAC3_2)       += $(call cc-option,-march=c3-2,-march=i686)
60
61 # AMD Elan support
62 cflags-$(CONFIG_X86_ELAN)       += -march=i486
63
64 # Geode GX1 support
65 cflags-$(CONFIG_MGEODEGX1)              += $(call cc-option,-march=pentium-mmx,-march=i486)
66
67 # -mregparm=3 works ok on gcc-3.0 and later
68 #
69 GCC_VERSION                     := $(call cc-version)
70 cflags-$(CONFIG_REGPARM)        += $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
71
72 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
73 # due to the lack of sharing of stacklots.
74 CFLAGS += $(call cc-option,-fno-unit-at-a-time)
75
76 CFLAGS += $(cflags-y)
77
78 # Default subarch .c files
79 mcore-y  := mach-default
80
81 # Voyager subarch support
82 mflags-$(CONFIG_X86_VOYAGER)    := -Iinclude/asm-i386/mach-voyager
83 mcore-$(CONFIG_X86_VOYAGER)     := mach-voyager
84
85 # VISWS subarch support
86 mflags-$(CONFIG_X86_VISWS)      := -Iinclude/asm-i386/mach-visws
87 mcore-$(CONFIG_X86_VISWS)       := mach-visws
88
89 # NUMAQ subarch support
90 mflags-$(CONFIG_X86_NUMAQ)      := -Iinclude/asm-i386/mach-numaq
91 mcore-$(CONFIG_X86_NUMAQ)       := mach-default
92
93 # BIGSMP subarch support
94 mflags-$(CONFIG_X86_BIGSMP)     := -Iinclude/asm-i386/mach-bigsmp
95 mcore-$(CONFIG_X86_BIGSMP)      := mach-default
96
97 #Summit subarch support
98 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
99 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
100
101 # generic subarchitecture
102 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
103 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
104 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
105
106 # ES7000 subarch support
107 mflags-$(CONFIG_X86_ES7000)     := -Iinclude/asm-i386/mach-es7000
108 mcore-$(CONFIG_X86_ES7000)      := mach-default
109 core-$(CONFIG_X86_ES7000)       := arch/i386/mach-es7000/
110
111 # default subarch .h files
112 mflags-y += -Iinclude/asm-i386/mach-default
113
114 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
115
116 libs-y                                  += arch/i386/lib/
117 core-y                                  += arch/i386/kernel/ \
118                                            arch/i386/mm/ \
119                                            arch/i386/$(mcore-y)/ \
120                                            arch/i386/crypto/
121 drivers-$(CONFIG_MATH_EMULATION)        += arch/i386/math-emu/
122 drivers-$(CONFIG_PCI)                   += arch/i386/pci/
123 # must be linked after kernel/
124 drivers-$(CONFIG_OPROFILE)              += arch/i386/oprofile/
125 drivers-$(CONFIG_PM)                    += arch/i386/power/
126
127 CFLAGS += $(mflags-y)
128 AFLAGS += $(mflags-y)
129
130 boot := arch/i386/boot
131
132 .PHONY: zImage bzImage compressed zlilo bzlilo \
133         zdisk bzdisk fdimage fdimage144 fdimage288 install kernel_install
134
135 all: bzImage
136
137 # KBUILD_IMAGE specify target image being built
138                     KBUILD_IMAGE := $(boot)/bzImage
139 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
140
141 zImage bzImage: vmlinux
142         $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
143
144 compressed: zImage
145
146 zlilo bzlilo: vmlinux
147         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
148
149 zdisk bzdisk: vmlinux
150         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
151
152 fdimage fdimage144 fdimage288: vmlinux
153         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
154
155 install: vmlinux
156 install kernel_install:
157         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
158
159 archclean:
160         $(Q)$(MAKE) $(clean)=arch/i386/boot
161
162 define archhelp
163   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
164   echo  '  install      - Install kernel using'
165   echo  '                  (your) ~/bin/installkernel or'
166   echo  '                  (distribution) /sbin/installkernel or'
167   echo  '                  install to $$(INSTALL_PATH) and run lilo'
168   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
169   echo  '  fdimage      - Create a boot floppy image'
170 endef
171
172 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf