Root/arch/arm/Makefile

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
14ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
15LDFLAGS_vmlinux += --be8
16endif
17
18OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
19GZFLAGS :=-9
20#KBUILD_CFLAGS +=-pipe
21# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
22KBUILD_CFLAGS +=$(call cc-option,-marm,)
23
24# Do not use arch/arm/defconfig - it's always outdated.
25# Select a platform tht is kept up-to-date
26KBUILD_DEFCONFIG := versatile_defconfig
27
28# defines filename extension depending memory management type.
29ifeq ($(CONFIG_MMU),)
30MMUEXT := -nommu
31endif
32
33ifeq ($(CONFIG_FRAME_POINTER),y)
34KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
35endif
36
37ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
38KBUILD_CPPFLAGS += -mbig-endian
39AS += -EB
40LD += -EB
41else
42KBUILD_CPPFLAGS += -mlittle-endian
43AS += -EL
44LD += -EL
45endif
46
47comma = ,
48
49# This selects which instruction set is used.
50# Note that GCC does not numerically define an architecture version
51# macro, but instead defines a whole series of macros which makes
52# testing for a specific architecture or later rather impossible.
53arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
54arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
55# Only override the compiler option if ARMv6. The ARMv6K extensions are
56# always available in ARMv7
57ifeq ($(CONFIG_CPU_32v6),y)
58arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
59endif
60arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
61arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
62arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
63arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
64
65# This selects how we optimise for the processor.
66tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
67tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
68tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
69tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
70tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
71tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
72tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
73tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
74tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
75tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
76tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
77tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
78tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
79tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
80tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
81tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
82tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
83tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
84tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
85
86ifeq ($(CONFIG_AEABI),y)
87CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
88else
89CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
90endif
91
92ifeq ($(CONFIG_ARM_UNWIND),y)
93CFLAGS_ABI +=-funwind-tables
94endif
95
96ifeq ($(CONFIG_THUMB2_KERNEL),y)
97AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
98AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
99CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
100AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
101endif
102
103# Need -Uarm for gcc < 3.x
104KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
105KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
106
107CHECKFLAGS += -D__arm__
108
109#Default value
110head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
111textofs-y := 0x00008000
112textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
113# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
114ifeq ($(CONFIG_ARCH_SA1100),y)
115textofs-$(CONFIG_SA1111) := 0x00208000
116endif
117
118# Machine directory name. This list is sorted alphanumerically
119# by CONFIG_* macro name.
120machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
121machine-$(CONFIG_ARCH_AT91) := at91
122machine-$(CONFIG_ARCH_BCMRING) := bcmring
123machine-$(CONFIG_ARCH_CLPS711X) := clps711x
124machine-$(CONFIG_ARCH_DAVINCI) := davinci
125machine-$(CONFIG_ARCH_DOVE) := dove
126machine-$(CONFIG_ARCH_EBSA110) := ebsa110
127machine-$(CONFIG_ARCH_EP93XX) := ep93xx
128machine-$(CONFIG_ARCH_GEMINI) := gemini
129machine-$(CONFIG_ARCH_H720X) := h720x
130machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
131machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
132machine-$(CONFIG_ARCH_IOP32X) := iop32x
133machine-$(CONFIG_ARCH_IOP33X) := iop33x
134machine-$(CONFIG_ARCH_IXP2000) := ixp2000
135machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
136machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
137machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
138machine-$(CONFIG_ARCH_KS8695) := ks8695
139machine-$(CONFIG_ARCH_L7200) := l7200
140machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
141machine-$(CONFIG_ARCH_LOKI) := loki
142machine-$(CONFIG_ARCH_MMP) := mmp
143machine-$(CONFIG_ARCH_MSM) := msm
144machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
145machine-$(CONFIG_ARCH_MX1) := mx1
146machine-$(CONFIG_ARCH_MX2) := mx2
147machine-$(CONFIG_ARCH_MX25) := mx25
148machine-$(CONFIG_ARCH_MX3) := mx3
149machine-$(CONFIG_ARCH_MX5) := mx5
150machine-$(CONFIG_ARCH_MXC91231) := mxc91231
151machine-$(CONFIG_ARCH_NETX) := netx
152machine-$(CONFIG_ARCH_NOMADIK) := nomadik
153machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
154machine-$(CONFIG_ARCH_OMAP1) := omap1
155machine-$(CONFIG_ARCH_OMAP2) := omap2
156machine-$(CONFIG_ARCH_OMAP3) := omap2
157machine-$(CONFIG_ARCH_OMAP4) := omap2
158machine-$(CONFIG_ARCH_ORION5X) := orion5x
159machine-$(CONFIG_ARCH_PNX4008) := pnx4008
160machine-$(CONFIG_ARCH_PXA) := pxa
161machine-$(CONFIG_ARCH_REALVIEW) := realview
162machine-$(CONFIG_ARCH_RPC) := rpc
163machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2443
164machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
165machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx
166machine-$(CONFIG_ARCH_S5P6440) := s5p6440
167machine-$(CONFIG_ARCH_S5P6442) := s5p6442
168machine-$(CONFIG_ARCH_S5PC1XX) := s5pc100
169machine-$(CONFIG_ARCH_S5PV210) := s5pv210
170machine-$(CONFIG_ARCH_SA1100) := sa1100
171machine-$(CONFIG_ARCH_SHARK) := shark
172machine-$(CONFIG_ARCH_SHMOBILE) := shmobile
173machine-$(CONFIG_ARCH_STMP378X) := stmp378x
174machine-$(CONFIG_ARCH_STMP37XX) := stmp37xx
175machine-$(CONFIG_ARCH_U300) := u300
176machine-$(CONFIG_ARCH_U8500) := ux500
177machine-$(CONFIG_ARCH_VERSATILE) := versatile
178machine-$(CONFIG_ARCH_W90X900) := w90x900
179machine-$(CONFIG_ARCH_NUC93X) := nuc93x
180machine-$(CONFIG_FOOTBRIDGE) := footbridge
181
182# Platform directory name. This list is sorted alphanumerically
183# by CONFIG_* macro name.
184plat-$(CONFIG_ARCH_MXC) := mxc
185plat-$(CONFIG_ARCH_OMAP) := omap
186plat-$(CONFIG_ARCH_S3C64XX) := samsung
187plat-$(CONFIG_ARCH_STMP3XXX) := stmp3xxx
188plat-$(CONFIG_PLAT_IOP) := iop
189plat-$(CONFIG_PLAT_NOMADIK) := nomadik
190plat-$(CONFIG_PLAT_ORION) := orion
191plat-$(CONFIG_PLAT_PXA) := pxa
192plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx samsung
193plat-$(CONFIG_PLAT_S5PC1XX) := s5pc1xx samsung
194plat-$(CONFIG_PLAT_S5P) := s5p samsung
195
196ifeq ($(CONFIG_ARCH_EBSA110),y)
197# This is what happens if you forget the IOCS16 line.
198# PCMCIA cards stop working.
199CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
200export CFLAGS_3c589_cs.o
201endif
202
203# The byte offset of the kernel image in RAM from the start of RAM.
204TEXT_OFFSET := $(textofs-y)
205
206# The first directory contains additional information for the boot setup code
207ifneq ($(machine-y),)
208MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
209else
210MACHINE :=
211endif
212
213machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
214platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
215
216ifeq ($(KBUILD_SRC),)
217KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
218else
219KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
220endif
221
222export TEXT_OFFSET GZFLAGS MMUEXT
223
224# Do we have FASTFPE?
225FASTFPE :=arch/arm/fastfpe
226ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
227FASTFPE_OBJ :=$(FASTFPE)/
228endif
229
230# If we have a machine-specific directory, then include it in the build.
231core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
232core-y += $(machdirs) $(platdirs)
233core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
234core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
235core-$(CONFIG_VFP) += arch/arm/vfp/
236
237drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
238
239libs-y := arch/arm/lib/ $(libs-y)
240
241# Default target when executing plain make
242ifeq ($(CONFIG_XIP_KERNEL),y)
243KBUILD_IMAGE := xipImage
244else
245KBUILD_IMAGE := zImage
246endif
247
248all: $(KBUILD_IMAGE)
249
250boot := arch/arm/boot
251
252archprepare:
253    $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
254
255# Convert bzImage to zImage
256bzImage: zImage
257
258zImage Image xipImage bootpImage uImage: vmlinux
259    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
260
261zinstall install: vmlinux
262    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
263
264# We use MRPROPER_FILES and CLEAN_FILES now
265archclean:
266    $(Q)$(MAKE) $(clean)=$(boot)
267
268# My testing targets (bypasses dependencies)
269bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
270i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
271
272
273define archhelp
274  echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
275  echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
276  echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
277  echo ' uImage - U-Boot wrapped zImage'
278  echo ' bootpImage - Combined zImage and initial RAM disk'
279  echo ' (supply initrd image via make variable INITRD=<path>)'
280  echo ' install - Install uncompressed kernel'
281  echo ' zinstall - Install compressed kernel'
282  echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
283  echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
284  echo ' install to $$(INSTALL_PATH) and run lilo'
285endef
286

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