xref: /linux/arch/arm/Makefile (revision 2ecf042ef530dd0943e41d84b6344f507941af3e)
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 
13 LDFLAGS_vmlinux	:=-p --no-undefined -X
14 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15 OBJCOPYFLAGS	:=-O binary -R .note -R .comment -S
16 GZFLAGS		:=-9
17 #CFLAGS		+=-pipe
18 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
19 CFLAGS		+=$(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21 # Do not use arch/arm/defconfig - it's always outdated.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
23 KBUILD_DEFCONFIG := versatile_defconfig
24 
25 # defines filename extension depending memory manement type.
26 ifeq ($(CONFIG_MMU),)
27 MMUEXT		:= -nommu
28 endif
29 
30 ifeq ($(CONFIG_FRAME_POINTER),y)
31 CFLAGS		+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
32 endif
33 
34 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
35 CPPFLAGS	+= -mbig-endian
36 AS		+= -EB
37 LD		+= -EB
38 else
39 CPPFLAGS	+= -mlittle-endian
40 AS		+= -EL
41 LD		+= -EL
42 endif
43 
44 comma = ,
45 
46 # This selects which instruction set is used.
47 # Note that GCC does not numerically define an architecture version
48 # macro, but instead defines a whole series of macros which makes
49 # testing for a specific architecture or later rather impossible.
50 arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7a,-march=armv5t -Wa$(comma)-march=armv7a)
51 arch-$(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
54 ifeq ($(CONFIG_CPU_32v6),y)
55 arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
56 endif
57 arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
58 arch-$(CONFIG_CPU_32v4T)	:=-D__LINUX_ARM_ARCH__=4 -march=armv4t
59 arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
60 arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3
61 
62 # This selects how we optimise for the processor.
63 tune-$(CONFIG_CPU_ARM610)	:=-mtune=arm610
64 tune-$(CONFIG_CPU_ARM710)	:=-mtune=arm710
65 tune-$(CONFIG_CPU_ARM7TDMI)	:=-mtune=arm7tdmi
66 tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi
67 tune-$(CONFIG_CPU_ARM740T)	:=-mtune=arm7tdmi
68 tune-$(CONFIG_CPU_ARM9TDMI)	:=-mtune=arm9tdmi
69 tune-$(CONFIG_CPU_ARM940T)	:=-mtune=arm9tdmi
70 tune-$(CONFIG_CPU_ARM946T)	:=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
71 tune-$(CONFIG_CPU_ARM920T)	:=-mtune=arm9tdmi
72 tune-$(CONFIG_CPU_ARM922T)	:=-mtune=arm9tdmi
73 tune-$(CONFIG_CPU_ARM925T)	:=-mtune=arm9tdmi
74 tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
75 tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
76 tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
77 tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
78 tune-$(CONFIG_CPU_XSC3)		:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
79 tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
80 
81 ifeq ($(CONFIG_AEABI),y)
82 CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
83 else
84 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
85 endif
86 
87 # Need -Uarm for gcc < 3.x
88 CFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
89 AFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
90 
91 CHECKFLAGS	+= -D__arm__
92 
93 #Default value
94 head-y		:= arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
95 textofs-y	:= 0x00008000
96 
97  machine-$(CONFIG_ARCH_RPC)	   := rpc
98  machine-$(CONFIG_ARCH_EBSA110)	   := ebsa110
99  machine-$(CONFIG_ARCH_CLPS7500)   := clps7500
100   incdir-$(CONFIG_ARCH_CLPS7500)   := cl7500
101  machine-$(CONFIG_FOOTBRIDGE)	   := footbridge
102   incdir-$(CONFIG_FOOTBRIDGE)	   := ebsa285
103  machine-$(CONFIG_ARCH_CO285)	   := footbridge
104   incdir-$(CONFIG_ARCH_CO285)	   := ebsa285
105  machine-$(CONFIG_ARCH_SHARK)	   := shark
106  machine-$(CONFIG_ARCH_SA1100)	   := sa1100
107 ifeq ($(CONFIG_ARCH_SA1100),y)
108 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
109  textofs-$(CONFIG_SA1111)	   := 0x00208000
110 endif
111  machine-$(CONFIG_ARCH_PXA)	   := pxa
112  machine-$(CONFIG_ARCH_L7200)	   := l7200
113  machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
114  textofs-$(CONFIG_ARCH_CLPS711X)   := 0x00028000
115  machine-$(CONFIG_ARCH_CLPS711X)   := clps711x
116  machine-$(CONFIG_ARCH_IOP32X)	   := iop32x
117  machine-$(CONFIG_ARCH_IOP33X)	   := iop33x
118  machine-$(CONFIG_ARCH_IOP13XX)	   := iop13xx
119  machine-$(CONFIG_ARCH_IXP4XX)	   := ixp4xx
120  machine-$(CONFIG_ARCH_IXP2000)    := ixp2000
121  machine-$(CONFIG_ARCH_IXP23XX)    := ixp23xx
122  machine-$(CONFIG_ARCH_OMAP1)	   := omap1
123  machine-$(CONFIG_ARCH_OMAP2)	   := omap2
124   incdir-$(CONFIG_ARCH_OMAP)	   := omap
125  machine-$(CONFIG_ARCH_S3C2410)	   := s3c2410
126  machine-$(CONFIG_ARCH_LH7A40X)	   := lh7a40x
127  machine-$(CONFIG_ARCH_VERSATILE)  := versatile
128  machine-$(CONFIG_ARCH_IMX)	   := imx
129  machine-$(CONFIG_ARCH_H720X)	   := h720x
130  machine-$(CONFIG_ARCH_AAEC2000)   := aaec2000
131  machine-$(CONFIG_ARCH_REALVIEW)   := realview
132  machine-$(CONFIG_ARCH_AT91)	   := at91
133  machine-$(CONFIG_ARCH_EP93XX)	   := ep93xx
134  machine-$(CONFIG_ARCH_PNX4008)	   := pnx4008
135  machine-$(CONFIG_ARCH_NETX)	   := netx
136  machine-$(CONFIG_ARCH_NS9XXX)	   := ns9xxx
137  textofs-$(CONFIG_ARCH_NS9XXX)	   := 0x00108000
138 
139 ifeq ($(CONFIG_ARCH_EBSA110),y)
140 # This is what happens if you forget the IOCS16 line.
141 # PCMCIA cards stop working.
142 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
143 export CFLAGS_3c589_cs.o
144 endif
145 
146 # The byte offset of the kernel image in RAM from the start of RAM.
147 TEXT_OFFSET := $(textofs-y)
148 
149 ifeq ($(incdir-y),)
150 incdir-y := $(machine-y)
151 endif
152 INCDIR   := arch-$(incdir-y)
153 
154 ifneq ($(machine-y),)
155 MACHINE  := arch/arm/mach-$(machine-y)/
156 else
157 MACHINE  :=
158 endif
159 
160 export	TEXT_OFFSET GZFLAGS MMUEXT
161 
162 # Do we have FASTFPE?
163 FASTFPE		:=arch/arm/fastfpe
164 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
165 FASTFPE_OBJ	:=$(FASTFPE)/
166 endif
167 
168 # If we have a machine-specific directory, then include it in the build.
169 core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
170 core-y				+= $(MACHINE)
171 core-$(CONFIG_ARCH_S3C2410)	+= arch/arm/mach-s3c2400/
172 core-$(CONFIG_ARCH_S3C2410)	+= arch/arm/mach-s3c2412/
173 core-$(CONFIG_ARCH_S3C2410)	+= arch/arm/mach-s3c2440/
174 core-$(CONFIG_ARCH_S3C2410)	+= arch/arm/mach-s3c2442/
175 core-$(CONFIG_ARCH_S3C2410)	+= arch/arm/mach-s3c2443/
176 core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
177 core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
178 core-$(CONFIG_VFP)		+= arch/arm/vfp/
179 
180 # If we have a common platform directory, then include it in the build.
181 core-$(CONFIG_PLAT_IOP)		+= arch/arm/plat-iop/
182 core-$(CONFIG_ARCH_OMAP)	+= arch/arm/plat-omap/
183 core-$(CONFIG_PLAT_S3C24XX)		+= arch/arm/plat-s3c24xx/
184 
185 drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
186 drivers-$(CONFIG_ARCH_CLPS7500)	+= drivers/acorn/char/
187 drivers-$(CONFIG_ARCH_L7200)	+= drivers/acorn/char/
188 
189 libs-y				:= arch/arm/lib/ $(libs-y)
190 
191 # Default target when executing plain make
192 ifeq ($(CONFIG_XIP_KERNEL),y)
193 KBUILD_IMAGE := xipImage
194 else
195 KBUILD_IMAGE := zImage
196 endif
197 
198 all:	$(KBUILD_IMAGE)
199 
200 boot := arch/arm/boot
201 
202 #	Update machine arch and proc symlinks if something which affects
203 #	them changed.  We use .arch to indicate when they were updated
204 #	last, otherwise make uses the target directory mtime.
205 
206 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
207 	@echo '  SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
208 ifneq ($(KBUILD_SRC),)
209 	$(Q)mkdir -p include/asm-arm
210 	$(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
211 else
212 	$(Q)ln -fsn $(INCDIR) include/asm-arm/arch
213 endif
214 	@touch $@
215 
216 archprepare: maketools
217 
218 PHONY += maketools FORCE
219 maketools: include/linux/version.h include/asm-arm/.arch FORCE
220 	$(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
221 
222 # Convert bzImage to zImage
223 bzImage: zImage
224 
225 zImage Image xipImage bootpImage uImage: vmlinux
226 	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
227 
228 zinstall install: vmlinux
229 	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
230 
231 CLEAN_FILES += include/asm-arm/mach-types.h \
232 	       include/asm-arm/arch include/asm-arm/.arch
233 
234 # We use MRPROPER_FILES and CLEAN_FILES now
235 archclean:
236 	$(Q)$(MAKE) $(clean)=$(boot)
237 
238 # My testing targets (bypasses dependencies)
239 bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
240 i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
241 
242 
243 define archhelp
244   echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
245   echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
246   echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
247   echo  '  bootpImage    - Combined zImage and initial RAM disk'
248   echo  '                  (supply initrd image via make variable INITRD=<path>)'
249   echo  '  install       - Install uncompressed kernel'
250   echo  '  zinstall      - Install compressed kernel'
251   echo  '                  Install using (your) ~/bin/installkernel or'
252   echo  '                  (distribution) /sbin/installkernel or'
253   echo  '                  install to $$(INSTALL_PATH) and run lilo'
254 endef
255