arch/arm/Makefile at v3.7-rc2 · tjh.dev/kernel

tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
kernel / arch / arm / Makefile
at v3.7-rc2 322 lines 12 kB view raw
  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# Ensure linker flags are correct
 14LDFLAGS		:=
 15
 16LDFLAGS_vmlinux	:=-p --no-undefined -X
 17ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
 18LDFLAGS_vmlinux	+= --be8
 19endif
 20
 21OBJCOPYFLAGS	:=-O binary -R .comment -S
 22GZFLAGS		:=-9
 23#KBUILD_CFLAGS	+=-pipe
 24# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
 25KBUILD_CFLAGS	+=$(call cc-option,-marm,)
 26
 27# Never generate .eh_frame
 28KBUILD_CFLAGS	+= $(call cc-option,-fno-dwarf2-cfi-asm)
 29
 30# Do not use arch/arm/defconfig - it's always outdated.
 31# Select a platform tht is kept up-to-date
 32KBUILD_DEFCONFIG := versatile_defconfig
 33
 34# defines filename extension depending memory management type.
 35ifeq ($(CONFIG_MMU),)
 36MMUEXT		:= -nommu
 37endif
 38
 39ifeq ($(CONFIG_FRAME_POINTER),y)
 40KBUILD_CFLAGS	+=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
 41endif
 42
 43ifeq ($(CONFIG_CC_STACKPROTECTOR),y)
 44KBUILD_CFLAGS	+=-fstack-protector
 45endif
 46
 47ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
 48KBUILD_CPPFLAGS	+= -mbig-endian
 49AS		+= -EB
 50LD		+= -EB
 51else
 52KBUILD_CPPFLAGS	+= -mlittle-endian
 53AS		+= -EL
 54LD		+= -EL
 55endif
 56
 57comma = ,
 58
 59# This selects which instruction set is used.
 60# Note that GCC does not numerically define an architecture version
 61# macro, but instead defines a whole series of macros which makes
 62# testing for a specific architecture or later rather impossible.
 63arch-$(CONFIG_CPU_32v7)		:=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
 64arch-$(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
 67ifeq ($(CONFIG_CPU_32v6),y)
 68arch-$(CONFIG_CPU_32v6K)	:=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
 69endif
 70arch-$(CONFIG_CPU_32v5)		:=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
 71arch-$(CONFIG_CPU_32v4T)	:=-D__LINUX_ARM_ARCH__=4 -march=armv4t
 72arch-$(CONFIG_CPU_32v4)		:=-D__LINUX_ARM_ARCH__=4 -march=armv4
 73arch-$(CONFIG_CPU_32v3)		:=-D__LINUX_ARM_ARCH__=3 -march=armv3
 74
 75# This selects how we optimise for the processor.
 76tune-$(CONFIG_CPU_ARM7TDMI)	:=-mtune=arm7tdmi
 77tune-$(CONFIG_CPU_ARM720T)	:=-mtune=arm7tdmi
 78tune-$(CONFIG_CPU_ARM740T)	:=-mtune=arm7tdmi
 79tune-$(CONFIG_CPU_ARM9TDMI)	:=-mtune=arm9tdmi
 80tune-$(CONFIG_CPU_ARM940T)	:=-mtune=arm9tdmi
 81tune-$(CONFIG_CPU_ARM946E)	:=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
 82tune-$(CONFIG_CPU_ARM920T)	:=-mtune=arm9tdmi
 83tune-$(CONFIG_CPU_ARM922T)	:=-mtune=arm9tdmi
 84tune-$(CONFIG_CPU_ARM925T)	:=-mtune=arm9tdmi
 85tune-$(CONFIG_CPU_ARM926T)	:=-mtune=arm9tdmi
 86tune-$(CONFIG_CPU_FA526)	:=-mtune=arm9tdmi
 87tune-$(CONFIG_CPU_SA110)	:=-mtune=strongarm110
 88tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
 89tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
 90tune-$(CONFIG_CPU_XSC3)		:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
 91tune-$(CONFIG_CPU_FEROCEON)	:=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
 92tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 93tune-$(CONFIG_CPU_V6K)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 94
 95ifeq ($(CONFIG_AEABI),y)
 96CFLAGS_ABI	:=-mabi=aapcs-linux -mno-thumb-interwork
 97else
 98CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
 99endif
100
101ifeq ($(CONFIG_ARM_UNWIND),y)
102CFLAGS_ABI	+=-funwind-tables
103endif
104
105ifeq ($(CONFIG_THUMB2_KERNEL),y)
106AFLAGS_AUTOIT	:=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
107AFLAGS_NOWARN	:=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
108CFLAGS_THUMB2	:=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
109AFLAGS_THUMB2	:=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
110# Work around buggy relocation from gas if requested:
111ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
112CFLAGS_MODULE	+=-fno-optimize-sibling-calls
113endif
114endif
115
116# Need -Uarm for gcc < 3.x
117KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
118KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
119
120CHECKFLAGS	+= -D__arm__
121
122#Default value
123head-y		:= arch/arm/kernel/head$(MMUEXT).o
124textofs-y	:= 0x00008000
125textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
126# We don't want the htc bootloader to corrupt kernel during resume
127textofs-$(CONFIG_PM_H1940)      := 0x00108000
128# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
129ifeq ($(CONFIG_ARCH_SA1100),y)
130textofs-$(CONFIG_SA1111) := 0x00208000
131endif
132textofs-$(CONFIG_ARCH_MSM7X30) := 0x00208000
133textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000
134textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000
135
136# Machine directory name.  This list is sorted alphanumerically
137# by CONFIG_* macro name.
138machine-$(CONFIG_ARCH_AT91)		+= at91
139machine-$(CONFIG_ARCH_BCM2835)		+= bcm2835
140machine-$(CONFIG_ARCH_CLPS711X)		+= clps711x
141machine-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx
142machine-$(CONFIG_ARCH_DAVINCI)		+= davinci
143machine-$(CONFIG_ARCH_DOVE)		+= dove
144machine-$(CONFIG_ARCH_EBSA110)		+= ebsa110
145machine-$(CONFIG_ARCH_EP93XX)		+= ep93xx
146machine-$(CONFIG_ARCH_GEMINI)		+= gemini
147machine-$(CONFIG_ARCH_H720X)		+= h720x
148machine-$(CONFIG_ARCH_HIGHBANK)		+= highbank
149machine-$(CONFIG_ARCH_INTEGRATOR)	+= integrator
150machine-$(CONFIG_ARCH_IOP13XX)		+= iop13xx
151machine-$(CONFIG_ARCH_IOP32X)		+= iop32x
152machine-$(CONFIG_ARCH_IOP33X)		+= iop33x
153machine-$(CONFIG_ARCH_IXP4XX)		+= ixp4xx
154machine-$(CONFIG_ARCH_KIRKWOOD)		+= kirkwood
155machine-$(CONFIG_ARCH_KS8695)		+= ks8695
156machine-$(CONFIG_ARCH_LPC32XX)		+= lpc32xx
157machine-$(CONFIG_ARCH_MMP)		+= mmp
158machine-$(CONFIG_ARCH_MSM)		+= msm
159machine-$(CONFIG_ARCH_MV78XX0)		+= mv78xx0
160machine-$(CONFIG_ARCH_MXC)		+= imx
161machine-$(CONFIG_ARCH_MXS)		+= mxs
162machine-$(CONFIG_ARCH_MVEBU)		+= mvebu
163machine-$(CONFIG_ARCH_NETX)		+= netx
164machine-$(CONFIG_ARCH_NOMADIK)		+= nomadik
165machine-$(CONFIG_ARCH_OMAP1)		+= omap1
166machine-$(CONFIG_ARCH_OMAP2PLUS)	+= omap2
167machine-$(CONFIG_ARCH_ORION5X)		+= orion5x
168machine-$(CONFIG_ARCH_PICOXCELL)	+= picoxcell
169machine-$(CONFIG_ARCH_PRIMA2)		+= prima2
170machine-$(CONFIG_ARCH_PXA)		+= pxa
171machine-$(CONFIG_ARCH_REALVIEW)		+= realview
172machine-$(CONFIG_ARCH_RPC)		+= rpc
173machine-$(CONFIG_ARCH_S3C24XX)		+= s3c24xx s3c2412 s3c2440
174machine-$(CONFIG_ARCH_S3C64XX)		+= s3c64xx
175machine-$(CONFIG_ARCH_S5P64X0)		+= s5p64x0
176machine-$(CONFIG_ARCH_S5PC100)		+= s5pc100
177machine-$(CONFIG_ARCH_S5PV210)		+= s5pv210
178machine-$(CONFIG_ARCH_EXYNOS)		+= exynos
179machine-$(CONFIG_ARCH_SA1100)		+= sa1100
180machine-$(CONFIG_ARCH_SHARK)		+= shark
181machine-$(CONFIG_ARCH_SHMOBILE) 	+= shmobile
182machine-$(CONFIG_ARCH_TEGRA)		+= tegra
183machine-$(CONFIG_ARCH_U300)		+= u300
184machine-$(CONFIG_ARCH_U8500)		+= ux500
185machine-$(CONFIG_ARCH_VERSATILE)	+= versatile
186machine-$(CONFIG_ARCH_VEXPRESS)		+= vexpress
187machine-$(CONFIG_ARCH_VT8500)		+= vt8500
188machine-$(CONFIG_ARCH_W90X900)		+= w90x900
189machine-$(CONFIG_FOOTBRIDGE)		+= footbridge
190machine-$(CONFIG_ARCH_SOCFPGA)		+= socfpga
191machine-$(CONFIG_ARCH_SPEAR13XX)	+= spear13xx
192machine-$(CONFIG_ARCH_SPEAR3XX)		+= spear3xx
193machine-$(CONFIG_MACH_SPEAR600)		+= spear6xx
194machine-$(CONFIG_ARCH_ZYNQ)		+= zynq
195
196# Platform directory name.  This list is sorted alphanumerically
197# by CONFIG_* macro name.
198plat-$(CONFIG_ARCH_MXC)		+= mxc
199plat-$(CONFIG_ARCH_OMAP)	+= omap
200plat-$(CONFIG_ARCH_S3C64XX)	+= samsung
201plat-$(CONFIG_ARCH_ZYNQ)	+= versatile
202plat-$(CONFIG_PLAT_IOP)		+= iop
203plat-$(CONFIG_PLAT_NOMADIK)	+= nomadik
204plat-$(CONFIG_PLAT_ORION)	+= orion
205plat-$(CONFIG_PLAT_PXA)		+= pxa
206plat-$(CONFIG_PLAT_S3C24XX)	+= s3c24xx samsung
207plat-$(CONFIG_PLAT_S5P)		+= samsung
208plat-$(CONFIG_PLAT_SPEAR)	+= spear
209plat-$(CONFIG_PLAT_VERSATILE)	+= versatile
210
211ifeq ($(CONFIG_ARCH_EBSA110),y)
212# This is what happens if you forget the IOCS16 line.
213# PCMCIA cards stop working.
214CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
215export CFLAGS_3c589_cs.o
216endif
217
218# The byte offset of the kernel image in RAM from the start of RAM.
219TEXT_OFFSET := $(textofs-y)
220
221# The first directory contains additional information for the boot setup code
222ifneq ($(machine-y),)
223MACHINE  := arch/arm/mach-$(word 1,$(machine-y))/
224else
225MACHINE  :=
226endif
227ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y)
228MACHINE  :=
229endif
230
231machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
232platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
233
234ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y)
235ifeq ($(KBUILD_SRC),)
236KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
237else
238KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
239endif
240endif
241
242export	TEXT_OFFSET GZFLAGS MMUEXT
243
244# Do we have FASTFPE?
245FASTFPE		:=arch/arm/fastfpe
246ifeq ($(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/
253core-$(CONFIG_XEN)		+= arch/arm/xen/
254
255# If we have a machine-specific directory, then include it in the build.
256core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
257core-y				+= arch/arm/net/
258core-y				+= arch/arm/crypto/
259core-y				+= $(machdirs) $(platdirs)
260
261drivers-$(CONFIG_OPROFILE)      += arch/arm/oprofile/
262
263libs-y				:= arch/arm/lib/ $(libs-y)
264
265# Default target when executing plain make
266ifeq ($(CONFIG_XIP_KERNEL),y)
267KBUILD_IMAGE := xipImage
268else
269KBUILD_IMAGE := zImage
270endif
271
272# Build the DT binary blobs if we have OF configured
273ifeq ($(CONFIG_USE_OF),y)
274KBUILD_DTBS := dtbs
275endif
276
277all:	$(KBUILD_IMAGE) $(KBUILD_DTBS)
278
279boot := arch/arm/boot
280
281archprepare:
282	$(Q)$(MAKE) $(build)=arch/arm/tools include/generated/mach-types.h
283
284# Convert bzImage to zImage
285bzImage: zImage
286
287zImage Image xipImage bootpImage uImage: vmlinux
288	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
289
290zinstall uinstall install: vmlinux
291	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
292
293%.dtb: scripts
294	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
295
296dtbs: scripts
297	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
298
299# We use MRPROPER_FILES and CLEAN_FILES now
300archclean:
301	$(Q)$(MAKE) $(clean)=$(boot)
302
303# My testing targets (bypasses dependencies)
304bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
305i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
306
307
308define archhelp
309  echo  '* zImage        - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
310  echo  '  Image         - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
311  echo  '* xipImage      - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
312  echo  '  uImage        - U-Boot wrapped zImage'
313  echo  '  bootpImage    - Combined zImage and initial RAM disk' 
314  echo  '                  (supply initrd image via make variable INITRD=<path>)'
315  echo  '* dtbs          - Build device tree blobs for enabled boards'
316  echo  '  install       - Install uncompressed kernel'
317  echo  '  zinstall      - Install compressed kernel'
318  echo  '  uinstall      - Install U-Boot wrapped compressed kernel'
319  echo  '                  Install using (your) ~/bin/$(INSTALLKERNEL) or'
320  echo  '                  (distribution) /sbin/$(INSTALLKERNEL) or'
321  echo  '                  install to $$(INSTALL_PATH) and run lilo'
322endef