kbuild: remove GCC_VERSION
[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 # CPU-specific tuning. Anything which can be shared with UML should go here.
38 include $(srctree)/arch/i386/Makefile.cpu
39
40 # -mregparm=3 works ok on gcc-3.0 and later
41 #
42 cflags-$(CONFIG_REGPARM) += $(shell if [ $(call cc-version) -ge 0300 ] ; then \
43                             echo "-mregparm=3"; fi ;)
44
45 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
46 # due to the lack of sharing of stacklots.
47 CFLAGS += $(call cc-option,-fno-unit-at-a-time)
48
49 CFLAGS += $(cflags-y)
50
51 # Default subarch .c files
52 mcore-y  := mach-default
53
54 # Voyager subarch support
55 mflags-$(CONFIG_X86_VOYAGER)    := -Iinclude/asm-i386/mach-voyager
56 mcore-$(CONFIG_X86_VOYAGER)     := mach-voyager
57
58 # VISWS subarch support
59 mflags-$(CONFIG_X86_VISWS)      := -Iinclude/asm-i386/mach-visws
60 mcore-$(CONFIG_X86_VISWS)       := mach-visws
61
62 # NUMAQ subarch support
63 mflags-$(CONFIG_X86_NUMAQ)      := -Iinclude/asm-i386/mach-numaq
64 mcore-$(CONFIG_X86_NUMAQ)       := mach-default
65
66 # BIGSMP subarch support
67 mflags-$(CONFIG_X86_BIGSMP)     := -Iinclude/asm-i386/mach-bigsmp
68 mcore-$(CONFIG_X86_BIGSMP)      := mach-default
69
70 #Summit subarch support
71 mflags-$(CONFIG_X86_SUMMIT) := -Iinclude/asm-i386/mach-summit
72 mcore-$(CONFIG_X86_SUMMIT)  := mach-default
73
74 # generic subarchitecture
75 mflags-$(CONFIG_X86_GENERICARCH) := -Iinclude/asm-i386/mach-generic
76 mcore-$(CONFIG_X86_GENERICARCH) := mach-default
77 core-$(CONFIG_X86_GENERICARCH) += arch/i386/mach-generic/
78
79 # ES7000 subarch support
80 mflags-$(CONFIG_X86_ES7000)     := -Iinclude/asm-i386/mach-es7000
81 mcore-$(CONFIG_X86_ES7000)      := mach-default
82 core-$(CONFIG_X86_ES7000)       := arch/i386/mach-es7000/
83
84 # default subarch .h files
85 mflags-y += -Iinclude/asm-i386/mach-default
86
87 head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
88
89 libs-y                                  += arch/i386/lib/
90 core-y                                  += arch/i386/kernel/ \
91                                            arch/i386/mm/ \
92                                            arch/i386/$(mcore-y)/ \
93                                            arch/i386/crypto/
94 drivers-$(CONFIG_MATH_EMULATION)        += arch/i386/math-emu/
95 drivers-$(CONFIG_PCI)                   += arch/i386/pci/
96 # must be linked after kernel/
97 drivers-$(CONFIG_OPROFILE)              += arch/i386/oprofile/
98 drivers-$(CONFIG_PM)                    += arch/i386/power/
99
100 CFLAGS += $(mflags-y)
101 AFLAGS += $(mflags-y)
102
103 boot := arch/i386/boot
104
105 .PHONY: zImage bzImage compressed zlilo bzlilo \
106         zdisk bzdisk fdimage fdimage144 fdimage288 install kernel_install
107
108 all: bzImage
109
110 # KBUILD_IMAGE specify target image being built
111                     KBUILD_IMAGE := $(boot)/bzImage
112 zImage zlilo zdisk: KBUILD_IMAGE := arch/i386/boot/zImage
113
114 zImage bzImage: vmlinux
115         $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_IMAGE)
116
117 compressed: zImage
118
119 zlilo bzlilo: vmlinux
120         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zlilo
121
122 zdisk bzdisk: vmlinux
123         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) zdisk
124
125 fdimage fdimage144 fdimage288: vmlinux
126         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
127
128 install: vmlinux
129 install kernel_install:
130         $(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
131
132 archclean:
133         $(Q)$(MAKE) $(clean)=arch/i386/boot
134
135 define archhelp
136   echo  '* bzImage      - Compressed kernel image (arch/$(ARCH)/boot/bzImage)'
137   echo  '  install      - Install kernel using'
138   echo  '                  (your) ~/bin/installkernel or'
139   echo  '                  (distribution) /sbin/installkernel or'
140   echo  '                  install to $$(INSTALL_PATH) and run lilo'
141   echo  '  bzdisk       - Create a boot floppy in /dev/fd0'
142   echo  '  fdimage      - Create a boot floppy image'
143 endef
144
145 CLEAN_FILES += arch/$(ARCH)/boot/fdimage arch/$(ARCH)/boot/mtools.conf