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# Never generate .eh_frame
25KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
26
27# Do not use arch/arm/defconfig - it's always outdated.
28# Select a platform tht is kept up-to-date
29KBUILD_DEFCONFIG := versatile_defconfig
30
31# defines filename extension depending memory management type.
32ifeq ($(CONFIG_MMU),)
33MMUEXT := -nommu
34endif
35
36ifeq ($(CONFIG_FRAME_POINTER),y)
37KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
38endif
39
40ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
41KBUILD_CFLAGS +=-fstack-protector
42endif
43
44ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
45KBUILD_CPPFLAGS += -mbig-endian
46AS += -EB
47LD += -EB
48else
49KBUILD_CPPFLAGS += -mlittle-endian
50AS += -EL
51LD += -EL
52endif
53
54comma = ,
55
56# This selects which instruction set is used.
57# Note that GCC does not numerically define an architecture version
58# macro, but instead defines a whole series of macros which makes
59# testing for a specific architecture or later rather impossible.
60arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
61arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
62# Only override the compiler option if ARMv6. The ARMv6K extensions are
63# always available in ARMv7
64ifeq ($(CONFIG_CPU_32v6),y)
65arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
66endif
67arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
68arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
69arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
70arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
71
72# This selects how we optimise for the processor.
73tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
74tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
75tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
76tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
77tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
78tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
79tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
80tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
81tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
82tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
83tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
84tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
85tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
86tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
87tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
88tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
89tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
90tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
91tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
92
93ifeq ($(CONFIG_AEABI),y)
94CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
95else
96CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
97endif
98
99ifeq ($(CONFIG_ARM_UNWIND),y)
100CFLAGS_ABI +=-funwind-tables
101endif
102
103ifeq ($(CONFIG_THUMB2_KERNEL),y)
104AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
105AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
106CFLAGS_THUMB2 :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
107AFLAGS_THUMB2 :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
108endif
109
110# Need -Uarm for gcc < 3.x
111KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
112KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
113
114CHECKFLAGS += -D__arm__
115
116#Default value
117head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
118textofs-y := 0x00008000
119textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
120# We don't want the htc bootloader to corrupt kernel during resume
121textofs-$(CONFIG_PM_H1940) := 0x00108000
122# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
123ifeq ($(CONFIG_ARCH_SA1100),y)
124textofs-$(CONFIG_SA1111) := 0x00208000
125endif
126
127# Machine directory name. This list is sorted alphanumerically
128# by CONFIG_* macro name.
129machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
130machine-$(CONFIG_ARCH_AT91) := at91
131machine-$(CONFIG_ARCH_BCMRING) := bcmring
132machine-$(CONFIG_ARCH_CLPS711X) := clps711x
133machine-$(CONFIG_ARCH_CNS3XXX) := cns3xxx
134machine-$(CONFIG_ARCH_DAVINCI) := davinci
135machine-$(CONFIG_ARCH_DOVE) := dove
136machine-$(CONFIG_ARCH_EBSA110) := ebsa110
137machine-$(CONFIG_ARCH_EP93XX) := ep93xx
138machine-$(CONFIG_ARCH_GEMINI) := gemini
139machine-$(CONFIG_ARCH_H720X) := h720x
140machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
141machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
142machine-$(CONFIG_ARCH_IOP32X) := iop32x
143machine-$(CONFIG_ARCH_IOP33X) := iop33x
144machine-$(CONFIG_ARCH_IXP2000) := ixp2000
145machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
146machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
147machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
148machine-$(CONFIG_ARCH_KS8695) := ks8695
149machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
150machine-$(CONFIG_ARCH_LOKI) := loki
151machine-$(CONFIG_ARCH_LPC32XX) := lpc32xx
152machine-$(CONFIG_ARCH_MMP) := mmp
153machine-$(CONFIG_ARCH_MSM) := msm
154machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
155machine-$(CONFIG_ARCH_MX1) := imx
156machine-$(CONFIG_ARCH_MX2) := imx
157machine-$(CONFIG_ARCH_MX25) := mx25
158machine-$(CONFIG_ARCH_MX3) := mx3
159machine-$(CONFIG_ARCH_MX5) := mx5
160machine-$(CONFIG_ARCH_MXC91231) := mxc91231
161machine-$(CONFIG_ARCH_NETX) := netx
162machine-$(CONFIG_ARCH_NOMADIK) := nomadik
163machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
164machine-$(CONFIG_ARCH_OMAP1) := omap1
165machine-$(CONFIG_ARCH_OMAP2) := omap2
166machine-$(CONFIG_ARCH_OMAP3) := omap2
167machine-$(CONFIG_ARCH_OMAP4) := omap2
168machine-$(CONFIG_ARCH_ORION5X) := orion5x
169machine-$(CONFIG_ARCH_PNX4008) := pnx4008
170machine-$(CONFIG_ARCH_PXA) := pxa
171machine-$(CONFIG_ARCH_REALVIEW) := realview
172machine-$(CONFIG_ARCH_RPC) := rpc
173machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2416 s3c2440 s3c2443
174machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
175machine-$(CONFIG_ARCH_S3C64XX) := s3c64xx
176machine-$(CONFIG_ARCH_S5P64X0) := s5p64x0
177machine-$(CONFIG_ARCH_S5P6442) := s5p6442
178machine-$(CONFIG_ARCH_S5PC100) := s5pc100
179machine-$(CONFIG_ARCH_S5PV210) := s5pv210
180machine-$(CONFIG_ARCH_S5PV310) := s5pv310
181machine-$(CONFIG_ARCH_SA1100) := sa1100
182machine-$(CONFIG_ARCH_SHARK) := shark
183machine-$(CONFIG_ARCH_SHMOBILE) := shmobile
184machine-$(CONFIG_ARCH_STMP378X) := stmp378x
185machine-$(CONFIG_ARCH_STMP37XX) := stmp37xx
186machine-$(CONFIG_ARCH_TCC8K) := tcc8k
187machine-$(CONFIG_ARCH_TEGRA) := tegra
188machine-$(CONFIG_ARCH_U300) := u300
189machine-$(CONFIG_ARCH_U8500) := ux500
190machine-$(CONFIG_ARCH_VERSATILE) := versatile
191machine-$(CONFIG_ARCH_VEXPRESS) := vexpress
192machine-$(CONFIG_ARCH_W90X900) := w90x900
193machine-$(CONFIG_ARCH_NUC93X) := nuc93x
194machine-$(CONFIG_FOOTBRIDGE) := footbridge
195machine-$(CONFIG_MACH_SPEAR300) := spear3xx
196machine-$(CONFIG_MACH_SPEAR310) := spear3xx
197machine-$(CONFIG_MACH_SPEAR320) := spear3xx
198machine-$(CONFIG_MACH_SPEAR600) := spear6xx
199
200# Platform directory name. This list is sorted alphanumerically
201# by CONFIG_* macro name.
202plat-$(CONFIG_ARCH_MXC) := mxc
203plat-$(CONFIG_ARCH_OMAP) := omap
204plat-$(CONFIG_ARCH_S3C64XX) := samsung
205plat-$(CONFIG_ARCH_STMP3XXX) := stmp3xxx
206plat-$(CONFIG_ARCH_TCC_926) := tcc
207plat-$(CONFIG_PLAT_IOP) := iop
208plat-$(CONFIG_PLAT_NOMADIK) := nomadik
209plat-$(CONFIG_PLAT_ORION) := orion
210plat-$(CONFIG_PLAT_PXA) := pxa
211plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx samsung
212plat-$(CONFIG_PLAT_S5P) := s5p samsung
213plat-$(CONFIG_PLAT_SPEAR) := spear
214plat-$(CONFIG_PLAT_VERSATILE) := versatile
215
216ifeq ($(CONFIG_ARCH_EBSA110),y)
217# This is what happens if you forget the IOCS16 line.
218# PCMCIA cards stop working.
219CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
220export CFLAGS_3c589_cs.o
221endif
222
223# The byte offset of the kernel image in RAM from the start of RAM.
224TEXT_OFFSET := $(textofs-y)
225
226# The first directory contains additional information for the boot setup code
227ifneq ($(machine-y),)
228MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
229else
230MACHINE :=
231endif
232
233machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
234platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
235
236ifeq ($(KBUILD_SRC),)
237KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
238else
239KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
240endif
241
242export TEXT_OFFSET GZFLAGS MMUEXT
243
244# Do we have FASTFPE?
245FASTFPE :=arch/arm/fastfpe
246ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
247FASTFPE_OBJ :=$(FASTFPE)/
248endif
249
250core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
251core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
252core-$(CONFIG_VFP) += arch/arm/vfp/
253
254# If we have a machine-specific directory, then include it in the build.
255core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
256core-y += $(machdirs) $(platdirs)
257
258drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
259
260libs-y := arch/arm/lib/ $(libs-y)
261
262# Default target when executing plain make
263ifeq ($(CONFIG_XIP_KERNEL),y)
264KBUILD_IMAGE := xipImage
265else
266KBUILD_IMAGE := zImage
267endif
268
269all: $(KBUILD_IMAGE)
270
271boot := arch/arm/boot
272
273archprepare:
274    $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
275
276# Convert bzImage to zImage
277bzImage: zImage
278
279zImage Image xipImage bootpImage uImage: vmlinux
280    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
281
282zinstall install: vmlinux
283    $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
284
285# We use MRPROPER_FILES and CLEAN_FILES now
286archclean:
287    $(Q)$(MAKE) $(clean)=$(boot)
288
289# My testing targets (bypasses dependencies)
290bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
291i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
292
293
294define archhelp
295  echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
296  echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
297  echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
298  echo ' uImage - U-Boot wrapped zImage'
299  echo ' bootpImage - Combined zImage and initial RAM disk'
300  echo ' (supply initrd image via make variable INITRD=<path>)'
301  echo ' install - Install uncompressed kernel'
302  echo ' zinstall - Install compressed kernel'
303  echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
304  echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
305  echo ' install to $$(INSTALL_PATH) and run lilo'
306endef
307

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