xref: /linux/arch/arm/Makefile (revision 46ba0abfe1ac2bd9608d0fc9e914379be695aa5b)
1#
2# arch/arm/Makefile
3#
4# This file is included by the global makefile so that you can add your own
5# architecture-specific flags and dependencies.
6#
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
14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15OBJCOPYFLAGS	:=-O binary -R .note -R .note.gnu.build-id -R .comment -S
16GZFLAGS		:=-9
17#KBUILD_CFLAGS	+=-pipe
18# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
19KBUILD_CFLAGS	+=$(call cc-option,-marm,)
20
21# Do not use arch/arm/defconfig - it's always outdated.
22# Select a platform tht is kept up-to-date
23KBUILD_DEFCONFIG := versatile_defconfig
24
25# defines filename extension depending memory manement type.
26ifeq ($(CONFIG_MMU),)
27MMUEXT		:= -nommu
28endif
29
30ifeq ($(CONFIG_FRAME_POINTER),y)
31KBUILD_CFLAGS	+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
32endif
33
34ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
35KBUILD_CPPFLAGS	+= -mbig-endian
36AS		+= -EB
37LD		+= -EB
38else
39KBUILD_CPPFLAGS	+= -mlittle-endian
40AS		+= -EL
41LD		+= -EL
42endif
43
44comma = ,
45
46# This selects which instruction set is used.
47# Note that GCC does not numerically define an architecture version
48# macro, but instead defines a whole series of macros which makes
49# testing for a specific architecture or later rather impossible.
50arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
51arch-$(CONFIG_CPU_32v6)		:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
52# Only override the compiler option if ARMv6. The ARMv6K extensions are
53# always available in ARMv7
54ifeq ($(CONFIG_CPU_32v6),y)
55arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
56endif
57arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
58arch-$(CONFIG_CPU_32v4T)	:=-D__LINUX_ARM_ARCH__=4 -march=armv4t
59arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
60arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3
61
62# This selects how we optimise for the processor.
63tune-$(CONFIG_CPU_ARM610)	:=-mtune=arm610
64tune-$(CONFIG_CPU_ARM710)	:=-mtune=arm710
65tune-$(CONFIG_CPU_ARM7TDMI)	:=-mtune=arm7tdmi
66tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi
67tune-$(CONFIG_CPU_ARM740T)	:=-mtune=arm7tdmi
68tune-$(CONFIG_CPU_ARM9TDMI)	:=-mtune=arm9tdmi
69tune-$(CONFIG_CPU_ARM940T)	:=-mtune=arm9tdmi
70tune-$(CONFIG_CPU_ARM946E)	:=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
71tune-$(CONFIG_CPU_ARM920T)	:=-mtune=arm9tdmi
72tune-$(CONFIG_CPU_ARM922T)	:=-mtune=arm9tdmi
73tune-$(CONFIG_CPU_ARM925T)	:=-mtune=arm9tdmi
74tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
75tune-$(CONFIG_CPU_FA526)	:=-mtune=arm9tdmi
76tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
77tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
78tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
79tune-$(CONFIG_CPU_XSC3)		:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
80tune-$(CONFIG_CPU_FEROCEON)	:=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
81tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
82
83ifeq ($(CONFIG_AEABI),y)
84CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
85else
86CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
87endif
88
89ifeq ($(CONFIG_ARM_UNWIND),y)
90CFLAGS_ABI	+=-funwind-tables
91endif
92
93# Need -Uarm for gcc < 3.x
94KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
95KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
96
97CHECKFLAGS	+= -D__arm__
98
99#Default value
100head-y		:= arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
101textofs-y	:= 0x00008000
102
103 machine-$(CONFIG_ARCH_RPC)	   := rpc
104 machine-$(CONFIG_ARCH_EBSA110)	   := ebsa110
105 machine-$(CONFIG_FOOTBRIDGE)	   := footbridge
106 machine-$(CONFIG_ARCH_SHARK)	   := shark
107 machine-$(CONFIG_ARCH_SA1100)	   := sa1100
108ifeq ($(CONFIG_ARCH_SA1100),y)
109# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
110 textofs-$(CONFIG_SA1111)	   := 0x00208000
111endif
112 machine-$(CONFIG_ARCH_PXA)	   := pxa
113 machine-$(CONFIG_ARCH_MMP)	   := mmp
114    plat-$(CONFIG_PLAT_PXA)	   := pxa
115 machine-$(CONFIG_ARCH_L7200)	   := l7200
116 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
117 machine-$(CONFIG_ARCH_GEMINI)     := gemini
118 textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
119 machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
120 machine-$(CONFIG_ARCH_IOP32X)	   := iop32x
121 machine-$(CONFIG_ARCH_IOP33X)	   := iop33x
122 machine-$(CONFIG_ARCH_IOP13XX)	   := iop13xx
123    plat-$(CONFIG_PLAT_IOP)	   := iop
124 machine-$(CONFIG_ARCH_IXP4XX)	   := ixp4xx
125 machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
126 machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
127 machine-$(CONFIG_ARCH_OMAP1)	   := omap1
128 machine-$(CONFIG_ARCH_OMAP2)	   := omap2
129 machine-$(CONFIG_ARCH_OMAP3)	   := omap2
130 machine-$(CONFIG_ARCH_OMAP4)	   := omap2
131    plat-$(CONFIG_ARCH_OMAP)	   := omap
132 machine-$(CONFIG_ARCH_S3C2410)	   := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
133 machine-$(CONFIG_ARCH_S3C24A0)	   := s3c24a0
134    plat-$(CONFIG_PLAT_S3C24XX)	   := s3c24xx s3c
135 machine-$(CONFIG_ARCH_S3C64XX)	   := s3c6400 s3c6410
136    plat-$(CONFIG_PLAT_S3C64XX)	   := s3c64xx s3c
137 machine-$(CONFIG_ARCH_LH7A40X)	   := lh7a40x
138 machine-$(CONFIG_ARCH_VERSATILE)  := versatile
139 machine-$(CONFIG_ARCH_IMX)	   := imx
140 machine-$(CONFIG_ARCH_H720X)	   := h720x
141 machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
142 machine-$(CONFIG_ARCH_REALVIEW)   := realview
143 machine-$(CONFIG_ARCH_AT91)	   := at91
144 machine-$(CONFIG_ARCH_EP93XX)	   := ep93xx
145 machine-$(CONFIG_ARCH_PNX4008)	   := pnx4008
146 machine-$(CONFIG_ARCH_NETX)	   := netx
147 machine-$(CONFIG_ARCH_NS9XXX)	   := ns9xxx
148 machine-$(CONFIG_ARCH_DAVINCI)	   := davinci
149 machine-$(CONFIG_ARCH_KIRKWOOD)   := kirkwood
150 machine-$(CONFIG_ARCH_KS8695)     := ks8695
151    plat-$(CONFIG_ARCH_MXC)	   := mxc
152 machine-$(CONFIG_ARCH_MX2)	   := mx2
153 machine-$(CONFIG_ARCH_MX3)	   := mx3
154 machine-$(CONFIG_ARCH_MX1)	   := mx1
155 machine-$(CONFIG_ARCH_ORION5X)	   := orion5x
156    plat-$(CONFIG_PLAT_ORION)	   := orion
157 machine-$(CONFIG_ARCH_MSM)	   := msm
158 machine-$(CONFIG_ARCH_LOKI)       := loki
159 machine-$(CONFIG_ARCH_MV78XX0)    := mv78xx0
160 machine-$(CONFIG_ARCH_W90X900)    := w90x900
161
162ifeq ($(CONFIG_ARCH_EBSA110),y)
163# This is what happens if you forget the IOCS16 line.
164# PCMCIA cards stop working.
165CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
166export CFLAGS_3c589_cs.o
167endif
168
169# The byte offset of the kernel image in RAM from the start of RAM.
170TEXT_OFFSET := $(textofs-y)
171
172# The first directory contains additional information for the boot setup code
173ifneq ($(machine-y),)
174MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
175else
176MACHINE  :=
177endif
178
179machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
180platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
181
182ifeq ($(KBUILD_SRC),)
183KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
184else
185KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
186endif
187
188export	TEXT_OFFSET GZFLAGS MMUEXT
189
190# Do we have FASTFPE?
191FASTFPE		:=arch/arm/fastfpe
192ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
193FASTFPE_OBJ	:=$(FASTFPE)/
194endif
195
196# If we have a machine-specific directory, then include it in the build.
197core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
198core-y				+= $(machdirs) $(platdirs)
199core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
200core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
201core-$(CONFIG_VFP)		+= arch/arm/vfp/
202
203drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
204
205libs-y				:= arch/arm/lib/ $(libs-y)
206
207# Default target when executing plain make
208ifeq ($(CONFIG_XIP_KERNEL),y)
209KBUILD_IMAGE := xipImage
210else
211KBUILD_IMAGE := zImage
212endif
213
214all:	$(KBUILD_IMAGE)
215
216boot := arch/arm/boot
217
218#	Update machine arch and proc symlinks if something which affects
219#	them changed.  We use .arch to indicate when they were updated
220#	last, otherwise make uses the target directory mtime.
221
222archprepare: maketools
223
224PHONY += maketools FORCE
225maketools: include/linux/version.h FORCE
226	$(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
227
228# Convert bzImage to zImage
229bzImage: zImage
230
231zImage Image xipImage bootpImage uImage: vmlinux
232	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
233
234zinstall install: vmlinux
235	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
236
237CLEAN_FILES += include/asm-arm/mach-types.h \
238	       include/asm-arm/arch include/asm-arm/.arch
239
240# We use MRPROPER_FILES and CLEAN_FILES now
241archclean:
242	$(Q)$(MAKE) $(clean)=$(boot)
243
244# My testing targets (bypasses dependencies)
245bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
246i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
247
248
249define archhelp
250  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
251  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
252  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
253  echo  '  uImage        - U-Boot wrapped zImage'
254  echo  '  bootpImage    - Combined zImage and initial RAM disk'
255  echo  '                  (supply initrd image via make variable INITRD=<path>)'
256  echo  '  install       - Install uncompressed kernel'
257  echo  '  zinstall      - Install compressed kernel'
258  echo  '                  Install using (your) ~/bin/installkernel or'
259  echo  '                  (distribution) /sbin/installkernel or'
260  echo  '                  install to $$(INSTALL_PATH) and run lilo'
261endef
262