4 # This file is included by the global makefile so that you can add your own
5 # architecture-specific flags and dependencies.
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
11 # Copyright (C) 1995-2001 by Russell King
13 # Ensure linker flags are correct
16 LDFLAGS_vmlinux :=-p --no-undefined -X
17 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
18 LDFLAGS_vmlinux += --be8
21 OBJCOPYFLAGS :=-O binary -R .comment -S
23 #KBUILD_CFLAGS +=-pipe
25 # Never generate .eh_frame
26 KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
28 # Do not use arch/arm/defconfig - it's always outdated.
29 # Select a platform tht is kept up-to-date
30 KBUILD_DEFCONFIG := versatile_defconfig
32 # defines filename extension depending memory management type.
35 KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
38 ifeq ($(CONFIG_FRAME_POINTER),y)
39 KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
42 ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
43 KBUILD_CFLAGS +=-fstack-protector
46 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
47 KBUILD_CPPFLAGS += -mbig-endian
51 KBUILD_CPPFLAGS += -mlittle-endian
58 # This selects which instruction set is used.
59 # Note that GCC does not numerically define an architecture version
60 # macro, but instead defines a whole series of macros which makes
61 # testing for a specific architecture or later rather impossible.
62 arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m
63 arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
64 arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
65 # Only override the compiler option if ARMv6. The ARMv6K extensions are
66 # always available in ARMv7
67 ifeq ($(CONFIG_CPU_32v6),y)
68 arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
70 arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
71 arch-$(CONFIG_CPU_32v4T) =-D__LINUX_ARM_ARCH__=4 -march=armv4t
72 arch-$(CONFIG_CPU_32v4) =-D__LINUX_ARM_ARCH__=4 -march=armv4
73 arch-$(CONFIG_CPU_32v3) =-D__LINUX_ARM_ARCH__=3 -march=armv3
75 # Evaluate arch cc-option calls now
78 # This selects how we optimise for the processor.
79 tune-$(CONFIG_CPU_ARM7TDMI) =-mtune=arm7tdmi
80 tune-$(CONFIG_CPU_ARM720T) =-mtune=arm7tdmi
81 tune-$(CONFIG_CPU_ARM740T) =-mtune=arm7tdmi
82 tune-$(CONFIG_CPU_ARM9TDMI) =-mtune=arm9tdmi
83 tune-$(CONFIG_CPU_ARM940T) =-mtune=arm9tdmi
84 tune-$(CONFIG_CPU_ARM946E) =$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
85 tune-$(CONFIG_CPU_ARM920T) =-mtune=arm9tdmi
86 tune-$(CONFIG_CPU_ARM922T) =-mtune=arm9tdmi
87 tune-$(CONFIG_CPU_ARM925T) =-mtune=arm9tdmi
88 tune-$(CONFIG_CPU_ARM926T) =-mtune=arm9tdmi
89 tune-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi
90 tune-$(CONFIG_CPU_SA110) =-mtune=strongarm110
91 tune-$(CONFIG_CPU_SA1100) =-mtune=strongarm1100
92 tune-$(CONFIG_CPU_XSCALE) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
93 tune-$(CONFIG_CPU_XSC3) =$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
94 tune-$(CONFIG_CPU_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale)
95 tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
96 tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
98 # Evaluate tune cc-option calls now
101 ifeq ($(CONFIG_AEABI),y)
102 CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
104 CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
107 ifeq ($(CONFIG_ARM_UNWIND),y)
108 CFLAGS_ABI +=-funwind-tables
111 ifeq ($(CONFIG_THUMB2_KERNEL),y)
112 AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
113 AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
114 CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
115 AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
116 # Work around buggy relocation from gas if requested:
117 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
118 CFLAGS_MODULE +=-fno-optimize-sibling-calls
121 CFLAGS_ISA :=$(call cc-option,-marm,)
122 AFLAGS_ISA :=$(CFLAGS_ISA)
125 # Need -Uarm for gcc < 3.x
126 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
127 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
129 CHECKFLAGS += -D__arm__
132 head-y := arch/arm/kernel/head$(MMUEXT).o
133 textofs-y := 0x00008000
134 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
135 # We don't want the htc bootloader to corrupt kernel during resume
136 textofs-$(CONFIG_PM_H1940) := 0x00108000
137 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
138 ifeq ($(CONFIG_ARCH_SA1100),y)
139 textofs-$(CONFIG_SA1111) := 0x00208000
141 textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
142 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
143 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
145 # Machine directory name. This list is sorted alphanumerically
146 # by CONFIG_* macro name.
147 machine-$(CONFIG_ARCH_AT91) += at91
148 machine-$(CONFIG_ARCH_BCM) += bcm
149 machine-$(CONFIG_ARCH_BCM2835) += bcm2835
150 machine-$(CONFIG_ARCH_CLPS711X) += clps711x
151 machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
152 machine-$(CONFIG_ARCH_DAVINCI) += davinci
153 machine-$(CONFIG_ARCH_DOVE) += dove
154 machine-$(CONFIG_ARCH_EBSA110) += ebsa110
155 machine-$(CONFIG_ARCH_EP93XX) += ep93xx
156 machine-$(CONFIG_ARCH_EXYNOS) += exynos
157 machine-$(CONFIG_ARCH_GEMINI) += gemini
158 machine-$(CONFIG_ARCH_HIGHBANK) += highbank
159 machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
160 machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
161 machine-$(CONFIG_ARCH_IOP32X) += iop32x
162 machine-$(CONFIG_ARCH_IOP33X) += iop33x
163 machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
164 machine-$(CONFIG_ARCH_KEYSTONE) += keystone
165 machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood
166 machine-$(CONFIG_ARCH_KS8695) += ks8695
167 machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
168 machine-$(CONFIG_ARCH_MMP) += mmp
169 machine-$(CONFIG_ARCH_MSM) += msm
170 machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
171 machine-$(CONFIG_ARCH_MVEBU) += mvebu
172 machine-$(CONFIG_ARCH_MXC) += imx
173 machine-$(CONFIG_ARCH_MXS) += mxs
174 machine-$(CONFIG_ARCH_NETX) += netx
175 machine-$(CONFIG_ARCH_NOMADIK) += nomadik
176 machine-$(CONFIG_ARCH_NSPIRE) += nspire
177 machine-$(CONFIG_ARCH_OMAP1) += omap1
178 machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
179 machine-$(CONFIG_ARCH_ORION5X) += orion5x
180 machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
181 machine-$(CONFIG_ARCH_PXA) += pxa
182 machine-$(CONFIG_ARCH_REALVIEW) += realview
183 machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
184 machine-$(CONFIG_ARCH_RPC) += rpc
185 machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
186 machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
187 machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0
188 machine-$(CONFIG_ARCH_S5PC100) += s5pc100
189 machine-$(CONFIG_ARCH_S5PV210) += s5pv210
190 machine-$(CONFIG_ARCH_SA1100) += sa1100
191 machine-$(CONFIG_ARCH_SHARK) += shark
192 machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
193 machine-$(CONFIG_ARCH_SHMOBILE_MULTI) += shmobile
194 machine-$(CONFIG_ARCH_SIRF) += prima2
195 machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
196 machine-$(CONFIG_ARCH_STI) += sti
197 machine-$(CONFIG_ARCH_SUNXI) += sunxi
198 machine-$(CONFIG_ARCH_TEGRA) += tegra
199 machine-$(CONFIG_ARCH_U300) += u300
200 machine-$(CONFIG_ARCH_U8500) += ux500
201 machine-$(CONFIG_ARCH_VERSATILE) += versatile
202 machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
203 machine-$(CONFIG_ARCH_VIRT) += virt
204 machine-$(CONFIG_ARCH_VT8500) += vt8500
205 machine-$(CONFIG_ARCH_W90X900) += w90x900
206 machine-$(CONFIG_ARCH_ZYNQ) += zynq
207 machine-$(CONFIG_FOOTBRIDGE) += footbridge
208 machine-$(CONFIG_PLAT_SPEAR) += spear
210 # Platform directory name. This list is sorted alphanumerically
211 # by CONFIG_* macro name.
212 plat-$(CONFIG_ARCH_EXYNOS) += samsung
213 plat-$(CONFIG_ARCH_OMAP) += omap
214 plat-$(CONFIG_ARCH_S3C64XX) += samsung
215 plat-$(CONFIG_PLAT_IOP) += iop
216 plat-$(CONFIG_PLAT_ORION) += orion
217 plat-$(CONFIG_PLAT_PXA) += pxa
218 plat-$(CONFIG_PLAT_S3C24XX) += samsung
219 plat-$(CONFIG_PLAT_S5P) += samsung
220 plat-$(CONFIG_PLAT_VERSATILE) += versatile
222 ifeq ($(CONFIG_ARCH_EBSA110),y)
223 # This is what happens if you forget the IOCS16 line.
224 # PCMCIA cards stop working.
225 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
226 export CFLAGS_3c589_cs.o
229 # The byte offset of the kernel image in RAM from the start of RAM.
230 TEXT_OFFSET := $(textofs-y)
232 # The first directory contains additional information for the boot setup code
233 ifneq ($(machine-y),)
234 MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
238 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
242 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
243 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
245 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
246 ifeq ($(KBUILD_SRC),)
247 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
249 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
253 export TEXT_OFFSET GZFLAGS MMUEXT
255 # Do we have FASTFPE?
256 FASTFPE :=arch/arm/fastfpe
257 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
258 FASTFPE_OBJ :=$(FASTFPE)/
261 core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
262 core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
263 core-$(CONFIG_VFP) += arch/arm/vfp/
264 core-$(CONFIG_XEN) += arch/arm/xen/
265 core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
267 # If we have a machine-specific directory, then include it in the build.
268 core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
269 core-y += arch/arm/net/
270 core-y += arch/arm/crypto/
271 core-y += $(machdirs) $(platdirs)
273 drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
275 libs-y := arch/arm/lib/ $(libs-y)
277 # Default target when executing plain make
278 ifeq ($(CONFIG_XIP_KERNEL),y)
279 KBUILD_IMAGE := xipImage
281 KBUILD_IMAGE := zImage
284 # Build the DT binary blobs if we have OF configured
285 ifeq ($(CONFIG_USE_OF),y)
289 all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
291 boot := arch/arm/boot
294 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
296 # Convert bzImage to zImage
299 zImage Image xipImage bootpImage uImage: vmlinux
300 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
302 zinstall uinstall install: vmlinux
303 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
306 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
310 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs
312 # We use MRPROPER_FILES and CLEAN_FILES now
314 $(Q)$(MAKE) $(clean)=$(boot)
316 # My testing targets (bypasses dependencies)
317 bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
318 i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
322 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
323 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
324 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
325 echo ' uImage - U-Boot wrapped zImage'
326 echo ' bootpImage - Combined zImage and initial RAM disk'
327 echo ' (supply initrd image via make variable INITRD=<path>)'
328 echo '* dtbs - Build device tree blobs for enabled boards'
329 echo ' install - Install uncompressed kernel'
330 echo ' zinstall - Install compressed kernel'
331 echo ' uinstall - Install U-Boot wrapped compressed kernel'
332 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
333 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
334 echo ' install to $$(INSTALL_PATH) and run lilo'