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 LDFLAGS_vmlinux :=-p --no-undefined -X
14 CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15 OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
17 #KBUILD_CFLAGS +=-pipe
18 # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
19 KBUILD_CFLAGS +=$(call cc-option,-marm,)
21 # Do not use arch/arm/defconfig - it's always outdated.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
25 # defines filename extension depending memory manement type.
30 ifeq ($(CONFIG_FRAME_POINTER),y)
31 KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
34 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
35 KBUILD_CPPFLAGS += -mbig-endian
39 KBUILD_CPPFLAGS += -mlittle-endian
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)
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
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) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
81 ifeq ($(CONFIG_AEABI),y)
82 CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
84 CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
87 # Need -Uarm for gcc < 3.x
88 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
89 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
91 CHECKFLAGS += -D__arm__
94 head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
95 textofs-y := 0x00008000
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
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-$(CONFIG_ARCH_NS9XXX) := 0x00108000
138 machine-$(CONFIG_ARCH_DAVINCI) := davinci
139 machine-$(CONFIG_ARCH_KS8695) := ks8695
140 incdir-$(CONFIG_ARCH_MXC) := mxc
141 machine-$(CONFIG_ARCH_MX3) := mx3
143 ifeq ($(CONFIG_ARCH_EBSA110),y)
144 # This is what happens if you forget the IOCS16 line.
145 # PCMCIA cards stop working.
146 CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
147 export CFLAGS_3c589_cs.o
150 # The byte offset of the kernel image in RAM from the start of RAM.
151 TEXT_OFFSET := $(textofs-y)
154 incdir-y := $(machine-y)
156 INCDIR := arch-$(incdir-y)
158 ifneq ($(machine-y),)
159 MACHINE := arch/arm/mach-$(machine-y)/
164 export TEXT_OFFSET GZFLAGS MMUEXT
166 # Do we have FASTFPE?
167 FASTFPE :=arch/arm/fastfpe
168 ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
169 FASTFPE_OBJ :=$(FASTFPE)/
172 # If we have a machine-specific directory, then include it in the build.
173 core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
175 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2400/
176 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2412/
177 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2440/
178 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2442/
179 core-$(CONFIG_ARCH_S3C2410) += arch/arm/mach-s3c2443/
180 core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
181 core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
182 core-$(CONFIG_VFP) += arch/arm/vfp/
184 # If we have a common platform directory, then include it in the build.
185 core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/
186 core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/
187 core-$(CONFIG_PLAT_S3C24XX) += arch/arm/plat-s3c24xx/
188 core-$(CONFIG_ARCH_MXC) += arch/arm/plat-mxc/
190 drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
191 drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
192 drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/
194 libs-y := arch/arm/lib/ $(libs-y)
196 # Default target when executing plain make
197 ifeq ($(CONFIG_XIP_KERNEL),y)
198 KBUILD_IMAGE := xipImage
200 KBUILD_IMAGE := zImage
205 boot := arch/arm/boot
207 # Update machine arch and proc symlinks if something which affects
208 # them changed. We use .arch to indicate when they were updated
209 # last, otherwise make uses the target directory mtime.
211 include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
212 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
213 ifneq ($(KBUILD_SRC),)
214 $(Q)mkdir -p include/asm-arm
215 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
217 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
221 archprepare: maketools
223 PHONY += maketools FORCE
224 maketools: include/linux/version.h include/asm-arm/.arch FORCE
225 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
227 # Convert bzImage to zImage
230 zImage Image xipImage bootpImage uImage: vmlinux
231 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
233 zinstall install: vmlinux
234 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
236 CLEAN_FILES += include/asm-arm/mach-types.h \
237 include/asm-arm/arch include/asm-arm/.arch
239 # We use MRPROPER_FILES and CLEAN_FILES now
241 $(Q)$(MAKE) $(clean)=$(boot)
243 # My testing targets (bypasses dependencies)
244 bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
245 i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
249 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
250 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
251 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
252 echo ' bootpImage - Combined zImage and initial RAM disk'
253 echo ' (supply initrd image via make variable INITRD=<path>)'
254 echo ' install - Install uncompressed kernel'
255 echo ' zinstall - Install compressed kernel'
256 echo ' Install using (your) ~/bin/installkernel or'
257 echo ' (distribution) /sbin/installkernel or'
258 echo ' install to $$(INSTALL_PATH) and run lilo'