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
19 LDFLAGS_MODULE += --be8
22 OBJCOPYFLAGS :=-O binary -R .comment -S
24 #KBUILD_CFLAGS +=-pipe
26 # Never generate .eh_frame
27 KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
29 # Do not use arch/arm/defconfig - it's always outdated.
30 # Select a platform tht is kept up-to-date
31 KBUILD_DEFCONFIG := versatile_defconfig
33 # defines filename extension depending memory management type.
36 KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)
39 ifeq ($(CONFIG_FRAME_POINTER),y)
40 KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
43 ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
44 KBUILD_CFLAGS +=-fstack-protector
47 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
48 KBUILD_CPPFLAGS += -mbig-endian
52 KBUILD_CPPFLAGS += -mlittle-endian
59 # This selects which instruction set is used.
60 # Note that GCC does not numerically define an architecture version
61 # macro, but instead defines a whole series of macros which makes
62 # testing for a specific architecture or later rather impossible.
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 # This selects how we optimise for the processor.
76 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
77 tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
78 tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
79 tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
80 tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
81 tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
82 tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
83 tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
84 tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
85 tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
86 tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
87 tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
88 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
89 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
90 tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
91 tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
92 tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
93 tune-$(CONFIG_CPU_V6K) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
95 ifeq ($(CONFIG_AEABI),y)
96 CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
98 CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
101 ifeq ($(CONFIG_ARM_UNWIND),y)
102 CFLAGS_ABI +=-funwind-tables
105 ifeq ($(CONFIG_THUMB2_KERNEL),y)
106 AFLAGS_AUTOIT :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
107 AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
108 CFLAGS_ISA :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
109 AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
110 # Work around buggy relocation from gas if requested:
111 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
112 CFLAGS_MODULE +=-fno-optimize-sibling-calls
115 CFLAGS_ISA :=$(call cc-option,-marm,)
116 AFLAGS_ISA :=$(CFLAGS_ISA)
119 # Need -Uarm for gcc < 3.x
120 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
121 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
123 CHECKFLAGS += -D__arm__
125 OBJCOPY_OUTPUT_FORMAT := elf32-littlearm
128 head-y := arch/arm/kernel/head$(MMUEXT).o
129 textofs-y := 0x00008000
130 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
131 # We don't want the htc bootloader to corrupt kernel during resume
132 textofs-$(CONFIG_PM_H1940) := 0x00108000
133 # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
134 ifeq ($(CONFIG_ARCH_SA1100),y)
135 textofs-$(CONFIG_SA1111) := 0x00208000
137 textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
138 textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
139 textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
141 # Machine directory name. This list is sorted alphanumerically
142 # by CONFIG_* macro name.
143 machine-$(CONFIG_ARCH_AT91) += at91
144 machine-$(CONFIG_ARCH_BCM) += bcm
145 machine-$(CONFIG_ARCH_BCM2835) += bcm2835
146 machine-$(CONFIG_ARCH_CLPS711X) += clps711x
147 machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
148 machine-$(CONFIG_ARCH_DAVINCI) += davinci
149 machine-$(CONFIG_ARCH_DOVE) += dove
150 machine-$(CONFIG_ARCH_EBSA110) += ebsa110
151 machine-$(CONFIG_ARCH_EP93XX) += ep93xx
152 machine-$(CONFIG_ARCH_GEMINI) += gemini
153 machine-$(CONFIG_ARCH_HIGHBANK) += highbank
154 machine-$(CONFIG_ARCH_INTEGRATOR) += integrator
155 machine-$(CONFIG_ARCH_IOP13XX) += iop13xx
156 machine-$(CONFIG_ARCH_IOP32X) += iop32x
157 machine-$(CONFIG_ARCH_IOP33X) += iop33x
158 machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx
159 machine-$(CONFIG_ARCH_KIRKWOOD) += kirkwood
160 machine-$(CONFIG_ARCH_KS8695) += ks8695
161 machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx
162 machine-$(CONFIG_ARCH_MMP) += mmp
163 machine-$(CONFIG_ARCH_MSM) += msm
164 machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0
165 machine-$(CONFIG_ARCH_MXC) += imx
166 machine-$(CONFIG_ARCH_MXS) += mxs
167 machine-$(CONFIG_ARCH_MVEBU) += mvebu
168 machine-$(CONFIG_ARCH_NETX) += netx
169 machine-$(CONFIG_ARCH_NOMADIK) += nomadik
170 machine-$(CONFIG_ARCH_OMAP1) += omap1
171 machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2
172 machine-$(CONFIG_ARCH_ORION5X) += orion5x
173 machine-$(CONFIG_ARCH_PICOXCELL) += picoxcell
174 machine-$(CONFIG_ARCH_PRIMA2) += prima2
175 machine-$(CONFIG_ARCH_PXA) += pxa
176 machine-$(CONFIG_ARCH_REALVIEW) += realview
177 machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip
178 machine-$(CONFIG_ARCH_RPC) += rpc
179 machine-$(CONFIG_ARCH_S3C24XX) += s3c24xx
180 machine-$(CONFIG_ARCH_S3C64XX) += s3c64xx
181 machine-$(CONFIG_ARCH_S5P64X0) += s5p64x0
182 machine-$(CONFIG_ARCH_S5PC100) += s5pc100
183 machine-$(CONFIG_ARCH_S5PV210) += s5pv210
184 machine-$(CONFIG_ARCH_EXYNOS) += exynos
185 machine-$(CONFIG_ARCH_SA1100) += sa1100
186 machine-$(CONFIG_ARCH_SHARK) += shark
187 machine-$(CONFIG_ARCH_SHMOBILE) += shmobile
188 machine-$(CONFIG_ARCH_TEGRA) += tegra
189 machine-$(CONFIG_ARCH_U300) += u300
190 machine-$(CONFIG_ARCH_U8500) += ux500
191 machine-$(CONFIG_ARCH_VERSATILE) += versatile
192 machine-$(CONFIG_ARCH_VEXPRESS) += vexpress
193 machine-$(CONFIG_ARCH_VT8500) += vt8500
194 machine-$(CONFIG_ARCH_W90X900) += w90x900
195 machine-$(CONFIG_FOOTBRIDGE) += footbridge
196 machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
197 machine-$(CONFIG_PLAT_SPEAR) += spear
198 machine-$(CONFIG_ARCH_VIRT) += virt
199 machine-$(CONFIG_ARCH_ZYNQ) += zynq
200 machine-$(CONFIG_ARCH_SUNXI) += sunxi
202 # Platform directory name. This list is sorted alphanumerically
203 # by CONFIG_* macro name.
204 plat-$(CONFIG_ARCH_OMAP) += omap
205 plat-$(CONFIG_ARCH_S3C64XX) += samsung
206 plat-$(CONFIG_PLAT_IOP) += iop
207 plat-$(CONFIG_PLAT_ORION) += orion
208 plat-$(CONFIG_PLAT_PXA) += pxa
209 plat-$(CONFIG_PLAT_S3C24XX) += samsung
210 plat-$(CONFIG_PLAT_S5P) += samsung
211 plat-$(CONFIG_PLAT_VERSATILE) += versatile
213 ifeq ($(CONFIG_ARCH_EBSA110),y)
214 # This is what happens if you forget the IOCS16 line.
215 # PCMCIA cards stop working.
216 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
217 export CFLAGS_3c589_cs.o
220 # The byte offset of the kernel image in RAM from the start of RAM.
221 TEXT_OFFSET := $(textofs-y)
223 # The first directory contains additional information for the boot setup code
224 ifneq ($(machine-y),)
225 MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
229 ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
233 machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
234 platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
236 ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
237 ifeq ($(KBUILD_SRC),)
238 KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
240 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
244 export TEXT_OFFSET GZFLAGS MMUEXT
246 # Do we have FASTFPE?
247 FASTFPE :=arch/arm/fastfpe
248 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
249 FASTFPE_OBJ :=$(FASTFPE)/
252 core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
253 core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
254 core-$(CONFIG_VFP) += arch/arm/vfp/
255 core-$(CONFIG_XEN) += arch/arm/xen/
256 core-$(CONFIG_KVM_ARM_HOST) += arch/arm/kvm/
258 # If we have a machine-specific directory, then include it in the build.
259 core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
260 core-y += arch/arm/net/
261 core-y += arch/arm/crypto/
262 core-y += $(machdirs) $(platdirs)
264 drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
266 libs-y := arch/arm/lib/ $(libs-y)
268 PIE_LDS := arch/arm/kernel/pie.lds
269 libpie-$(CONFIG_PIE) += arch/arm/libpie/
271 # Default target when executing plain make
272 ifeq ($(CONFIG_XIP_KERNEL),y)
273 KBUILD_IMAGE := xipImage
274 else ifeq ($(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE),y)
275 KBUILD_IMAGE := zImage-dtb.$(CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE_NAME)
277 KBUILD_IMAGE := zImage
280 # Build the DT binary blobs if we have OF configured
281 ifeq ($(CONFIG_USE_OF),y)
285 all: $(KBUILD_IMAGE) $(KBUILD_DTBS)
287 boot := arch/arm/boot
290 $(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
292 # Convert bzImage to zImage
295 zImage Image xipImage bootpImage uImage: vmlinux
296 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
298 zinstall uinstall install: vmlinux
299 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
302 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@
305 $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs
307 # We use MRPROPER_FILES and CLEAN_FILES now
309 $(Q)$(MAKE) $(clean)=$(boot)
311 # My testing targets (bypasses dependencies)
312 bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
313 i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
317 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
318 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
319 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
320 echo ' uImage - U-Boot wrapped zImage'
321 echo ' bootpImage - Combined zImage and initial RAM disk'
322 echo ' (supply initrd image via make variable INITRD=<path>)'
323 echo '* dtbs - Build device tree blobs for enabled boards'
324 echo ' install - Install uncompressed kernel'
325 echo ' zinstall - Install compressed kernel'
326 echo ' uinstall - Install U-Boot wrapped compressed kernel'
327 echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or'
328 echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
329 echo ' install to $$(INSTALL_PATH) and run lilo'
333 $(Q)$(srctree)/mkkrnlimg $(objtree)/arch/arm/boot/zImage $(objtree)/kernel.img >/dev/null
334 @echo ' Image: kernel.img is ready'
336 %_kernel.img: %.dtb zImage
337 $(Q)cat $(objtree)/arch/arm/boot/zImage $(objtree)/arch/arm/boot/dts/$*.dtb > $(objtree)/zImage-dtb && \
338 $(srctree)/mkkrnlimg $(objtree)/zImage-dtb $(objtree)/kernel.img >/dev/null && \
339 rm -f $(objtree)/zImage-dtb
340 @echo ' Image: kernel.img (with $*.dtb) is ready'
342 LOGO := $(notdir $(wildcard $(srctree)/logo.bmp))
343 %.img: %.dtb kernel.img $(LOGO)
344 $(Q)$(srctree)/resource_tool $(objtree)/arch/arm/boot/dts/$*.dtb $(LOGO)
345 @echo ' Image: resource.img (with $*.dtb $(LOGO)) is ready'