kbuild: change kbuild to not rely on incorrect GNU make behavior
[linux-2.6-block.git] / arch / arm / Makefile
CommitLineData
1da177e4
LT
1#
2# arch/arm/Makefile
3#
4f193362
PS
4# This file is included by the global makefile so that you can add your own
5# architecture-specific flags and dependencies.
6#
1da177e4
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7# This file is subject to the terms and conditions of the GNU General Public
8# License. See the file "COPYING" in the main directory of this archive
9# for more details.
10#
11# Copyright (C) 1995-2001 by Russell King
12
13LDFLAGS_vmlinux :=-p --no-undefined -X
9d4f13e5 14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
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15OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
16GZFLAGS :=-9
17#CFLAGS +=-pipe
18
19# Do not use arch/arm/defconfig - it's always outdated.
20# Select a platform tht is kept up-to-date
21KBUILD_DEFCONFIG := versatile_defconfig
22
23ifeq ($(CONFIG_FRAME_POINTER),y)
24CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
25endif
26
27ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
28CPPFLAGS += -mbig-endian
29AS += -EB
30LD += -EB
31else
32CPPFLAGS += -mlittle-endian
33AS += -EL
34LD += -EL
35endif
36
37comma = ,
38
39# This selects which instruction set is used.
40# Note that GCC does not numerically define an architecture version
41# macro, but instead defines a whole series of macros which makes
42# testing for a specific architecture or later rather impossible.
43arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
4a5f79e7 44arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
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45arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
46arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
47arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
48
49# This selects how we optimise for the processor.
50tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
51tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
52tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
53tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
54tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
55tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
56tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
57tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
58tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
59tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
cd26f45b 60tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
1da177e4 61
704bdda0
NP
62ifeq ($(CONFIG_AEABI),y)
63CFLAGS_ABI :=-mabi=aapcs -mno-thumb-interwork
64else
c28a814f 65CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
704bdda0
NP
66endif
67
68# Need -Uarm for gcc < 3.x
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69CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
70AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
71
72CHECKFLAGS += -D__arm__
73
74#Default value
75head-y := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
9d4f13e5 76textofs-y := 0x00008000
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77
78 machine-$(CONFIG_ARCH_RPC) := rpc
79 machine-$(CONFIG_ARCH_EBSA110) := ebsa110
80 machine-$(CONFIG_ARCH_CLPS7500) := clps7500
81 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500
82 machine-$(CONFIG_FOOTBRIDGE) := footbridge
83 incdir-$(CONFIG_FOOTBRIDGE) := ebsa285
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84 machine-$(CONFIG_ARCH_CO285) := footbridge
85 incdir-$(CONFIG_ARCH_CO285) := ebsa285
86 machine-$(CONFIG_ARCH_SHARK) := shark
87 machine-$(CONFIG_ARCH_SA1100) := sa1100
88ifeq ($(CONFIG_ARCH_SA1100),y)
89# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
9d4f13e5 90 textofs-$(CONFIG_SA1111) := 0x00208000
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91endif
92 machine-$(CONFIG_ARCH_PXA) := pxa
93 machine-$(CONFIG_ARCH_L7200) := l7200
94 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
9d4f13e5 95 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
1da177e4 96 machine-$(CONFIG_ARCH_CLPS711X) := clps711x
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97 machine-$(CONFIG_ARCH_IOP3XX) := iop3xx
98 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
99 machine-$(CONFIG_ARCH_IXP2000) := ixp2000
d48af15e 100 machine-$(CONFIG_ARCH_OMAP1) := omap1
1dbae815 101 machine-$(CONFIG_ARCH_OMAP2) := omap2
d48af15e 102 incdir-$(CONFIG_ARCH_OMAP) := omap
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103 machine-$(CONFIG_ARCH_S3C2410) := s3c2410
104 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
105 machine-$(CONFIG_ARCH_VERSATILE) := versatile
106 machine-$(CONFIG_ARCH_IMX) := imx
107 machine-$(CONFIG_ARCH_H720X) := h720x
038c5b60 108 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
8ad68bbf 109 machine-$(CONFIG_ARCH_REALVIEW) := realview
73a59c1c 110 machine-$(CONFIG_ARCH_AT91RM9200) := at91rm9200
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111
112ifeq ($(CONFIG_ARCH_EBSA110),y)
113# This is what happens if you forget the IOCS16 line.
114# PCMCIA cards stop working.
115CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
116export CFLAGS_3c589_cs.o
117endif
118
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RK
119# The byte offset of the kernel image in RAM from the start of RAM.
120TEXT_OFFSET := $(textofs-y)
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121
122ifeq ($(incdir-y),)
123incdir-y := $(machine-y)
124endif
125INCDIR := arch-$(incdir-y)
37d07b72 126
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127ifneq ($(machine-y),)
128MACHINE := arch/arm/mach-$(machine-y)/
129else
130MACHINE :=
131endif
132
9d4f13e5 133export TEXT_OFFSET GZFLAGS
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134
135# Do we have FASTFPE?
136FASTFPE :=arch/arm/fastfpe
137ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
138FASTFPE_OBJ :=$(FASTFPE)/
139endif
140
141# If we have a machine-specific directory, then include it in the build.
142core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
143core-y += $(MACHINE)
144core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
145core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
146core-$(CONFIG_VFP) += arch/arm/vfp/
147
d48af15e
TL
148# If we have a common platform directory, then include it in the build.
149core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/
150
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151drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
152drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
153drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/
154
30c2f90b 155libs-y := arch/arm/lib/ $(libs-y)
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156
157# Default target when executing plain make
158ifeq ($(CONFIG_XIP_KERNEL),y)
159all: xipImage
160else
161all: zImage
162endif
163
164boot := arch/arm/boot
165
166# Update machine arch and proc symlinks if something which affects
167# them changed. We use .arch to indicate when they were updated
168# last, otherwise make uses the target directory mtime.
169
170include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
171 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
172ifneq ($(KBUILD_SRC),)
173 $(Q)mkdir -p include/asm-arm
174 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
175else
176 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
177endif
178 @touch $@
179
0b155694 180archprepare: maketools
1da177e4 181
4f193362 182PHONY += maketools FORCE
0b155694 183maketools: include/linux/version.h include/asm-arm/.arch FORCE
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184 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
185
186# Convert bzImage to zImage
187bzImage: zImage
188
189zImage Image xipImage bootpImage uImage: vmlinux
190 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
191
192zinstall install: vmlinux
193 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
194
e6ae744d 195CLEAN_FILES += include/asm-arm/mach-types.h \
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196 include/asm-arm/arch include/asm-arm/.arch
197
198# We use MRPROPER_FILES and CLEAN_FILES now
199archclean:
200 $(Q)$(MAKE) $(clean)=$(boot)
201
202# My testing targets (bypasses dependencies)
203bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
204i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
205
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206
207define archhelp
208 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
209 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
210 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
211 echo ' bootpImage - Combined zImage and initial RAM disk'
212 echo ' (supply initrd image via make variable INITRD=<path>)'
213 echo ' install - Install uncompressed kernel'
214 echo ' zinstall - Install compressed kernel'
215 echo ' Install using (your) ~/bin/installkernel or'
216 echo ' (distribution) /sbin/installkernel or'
217 echo ' install to $$(INSTALL_PATH) and run lilo'
218endef