tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
13LDFLAGS_vmlinux :=-p --no-undefined -X
14CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
15OBJCOPYFLAGS :=-O binary -R .note -R .note.gnu.build-id -R .comment -S
16GZFLAGS :=-9
17#KBUILD_CFLAGS +=-pipe
18# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
19KBUILD_CFLAGS +=$(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21# Do not use arch/arm/defconfig - it's always outdated.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
23KBUILD_DEFCONFIG := versatile_defconfig
24
25# defines filename extension depending memory manement type.
26ifeq ($(CONFIG_MMU),)
27MMUEXT := -nommu
28endif
29
30ifeq ($(CONFIG_FRAME_POINTER),y)
31KBUILD_CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
32endif
33
34ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
35KBUILD_CPPFLAGS += -mbig-endian
36AS += -EB
37LD += -EB
38else
39KBUILD_CPPFLAGS += -mlittle-endian
40AS += -EL
41LD += -EL
42endif
43
44comma = ,
45
46# This selects which instruction set is used.
47# Note that GCC does not numerically define an architecture version
48# macro, but instead defines a whole series of macros which makes
49# testing for a specific architecture or later rather impossible.
50arch-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a)
51arch-$(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
54ifeq ($(CONFIG_CPU_32v6),y)
55arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
56endif
57arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
58arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
59arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
60arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
61
62# This selects how we optimise for the processor.
63tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
64tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
65tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
66tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
67tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
68tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
69tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
70tune-$(CONFIG_CPU_ARM946E) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
71tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
72tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
73tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
74tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
75tune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmi
76tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
77tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
78tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
79tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
80tune-$(CONFIG_CPU_FEROCEON) :=$(call cc-option,-mtune=marvell-f,-mtune=xscale)
81tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
82
83ifeq ($(CONFIG_AEABI),y)
84CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
85else
86CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
87endif
88
89ifeq ($(CONFIG_ARM_UNWIND),y)
90CFLAGS_ABI +=-funwind-tables
91endif
92
93# Need -Uarm for gcc < 3.x
94KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
95KBUILD_AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
96
97CHECKFLAGS += -D__arm__
98
99#Default value
100head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
101textofs-y := 0x00008000
102
103 machine-$(CONFIG_ARCH_RPC) := rpc
104 machine-$(CONFIG_ARCH_EBSA110) := ebsa110
105 machine-$(CONFIG_FOOTBRIDGE) := footbridge
106 machine-$(CONFIG_ARCH_SHARK) := shark
107 machine-$(CONFIG_ARCH_SA1100) := sa1100
108ifeq ($(CONFIG_ARCH_SA1100),y)
109# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
110 textofs-$(CONFIG_SA1111) := 0x00208000
111endif
112 machine-$(CONFIG_ARCH_PXA) := pxa
113 machine-$(CONFIG_ARCH_MMP) := mmp
114 plat-$(CONFIG_PLAT_PXA) := pxa
115 machine-$(CONFIG_ARCH_L7200) := l7200
116 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
117 machine-$(CONFIG_ARCH_GEMINI) := gemini
118 textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
119 machine-$(CONFIG_ARCH_CLPS711X) := clps711x
120 machine-$(CONFIG_ARCH_IOP32X) := iop32x
121 machine-$(CONFIG_ARCH_IOP33X) := iop33x
122 machine-$(CONFIG_ARCH_IOP13XX) := iop13xx
123 plat-$(CONFIG_PLAT_IOP) := iop
124 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
125 machine-$(CONFIG_ARCH_IXP2000) := ixp2000
126 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
127 machine-$(CONFIG_ARCH_OMAP1) := omap1
128 machine-$(CONFIG_ARCH_OMAP2) := omap2
129 machine-$(CONFIG_ARCH_OMAP3) := omap2
130 plat-$(CONFIG_ARCH_OMAP) := omap
131 machine-$(CONFIG_ARCH_S3C2410) := s3c2410 s3c2400 s3c2412 s3c2440 s3c2442 s3c2443
132 machine-$(CONFIG_ARCH_S3C24A0) := s3c24a0
133 plat-$(CONFIG_PLAT_S3C24XX) := s3c24xx s3c
134 machine-$(CONFIG_ARCH_S3C64XX) := s3c6400 s3c6410
135 plat-$(CONFIG_PLAT_S3C64XX) := s3c64xx s3c
136 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
137 machine-$(CONFIG_ARCH_VERSATILE) := versatile
138 machine-$(CONFIG_ARCH_IMX) := imx
139 machine-$(CONFIG_ARCH_H720X) := h720x
140 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
141 machine-$(CONFIG_ARCH_REALVIEW) := realview
142 machine-$(CONFIG_ARCH_AT91) := at91
143 machine-$(CONFIG_ARCH_EP93XX) := ep93xx
144 machine-$(CONFIG_ARCH_PNX4008) := pnx4008
145 machine-$(CONFIG_ARCH_NETX) := netx
146 machine-$(CONFIG_ARCH_NS9XXX) := ns9xxx
147 machine-$(CONFIG_ARCH_DAVINCI) := davinci
148 machine-$(CONFIG_ARCH_KIRKWOOD) := kirkwood
149 machine-$(CONFIG_ARCH_KS8695) := ks8695
150 plat-$(CONFIG_ARCH_MXC) := mxc
151 machine-$(CONFIG_ARCH_MX2) := mx2
152 machine-$(CONFIG_ARCH_MX3) := mx3
153 machine-$(CONFIG_ARCH_MX1) := mx1
154 machine-$(CONFIG_ARCH_ORION5X) := orion5x
155 plat-$(CONFIG_PLAT_ORION) := orion
156 machine-$(CONFIG_ARCH_MSM) := msm
157 machine-$(CONFIG_ARCH_LOKI) := loki
158 machine-$(CONFIG_ARCH_MV78XX0) := mv78xx0
159 machine-$(CONFIG_ARCH_W90X900) := w90x900
160
161ifeq ($(CONFIG_ARCH_EBSA110),y)
162# This is what happens if you forget the IOCS16 line.
163# PCMCIA cards stop working.
164CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
165export CFLAGS_3c589_cs.o
166endif
167
168# The byte offset of the kernel image in RAM from the start of RAM.
169TEXT_OFFSET := $(textofs-y)
170
171# The first directory contains additional information for the boot setup code
172ifneq ($(machine-y),)
173MACHINE := arch/arm/mach-$(word 1,$(machine-y))/
174else
175MACHINE :=
176endif
177
178machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y))
179platdirs := $(patsubst %,arch/arm/plat-%/,$(plat-y))
180
181ifeq ($(KBUILD_SRC),)
182KBUILD_CPPFLAGS += $(patsubst %,-I%include,$(machdirs) $(platdirs))
183else
184KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs))
185endif
186
187export TEXT_OFFSET GZFLAGS MMUEXT
188
189# Do we have FASTFPE?
190FASTFPE :=arch/arm/fastfpe
191ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
192FASTFPE_OBJ :=$(FASTFPE)/
193endif
194
195# If we have a machine-specific directory, then include it in the build.
196core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
197core-y += $(machdirs) $(platdirs)
198core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
199core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
200core-$(CONFIG_VFP) += arch/arm/vfp/
201
202drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
203
204libs-y := arch/arm/lib/ $(libs-y)
205
206# Default target when executing plain make
207ifeq ($(CONFIG_XIP_KERNEL),y)
208KBUILD_IMAGE := xipImage
209else
210KBUILD_IMAGE := zImage
211endif
212
213all: $(KBUILD_IMAGE)
214
215boot := arch/arm/boot
216
217# Update machine arch and proc symlinks if something which affects
218# them changed. We use .arch to indicate when they were updated
219# last, otherwise make uses the target directory mtime.
220
221archprepare: maketools
222
223PHONY += maketools FORCE
224maketools: include/linux/version.h FORCE
225 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
226
227# Convert bzImage to zImage
228bzImage: zImage
229
230zImage Image xipImage bootpImage uImage: vmlinux
231 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
232
233zinstall install: vmlinux
234 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
235
236CLEAN_FILES += include/asm-arm/mach-types.h \
237 include/asm-arm/arch include/asm-arm/.arch
238
239# We use MRPROPER_FILES and CLEAN_FILES now
240archclean:
241 $(Q)$(MAKE) $(clean)=$(boot)
242
243# My testing targets (bypasses dependencies)
244bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
245i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
246
247
248define archhelp
249 echo '* zImage - Compressed kernel image (arch/$(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 ' uImage - U-Boot wrapped zImage'
253 echo ' bootpImage - Combined zImage and initial RAM disk'
254 echo ' (supply initrd image via make variable INITRD=<path>)'
255 echo ' install - Install uncompressed kernel'
256 echo ' zinstall - Install compressed kernel'
257 echo ' Install using (your) ~/bin/installkernel or'
258 echo ' (distribution) /sbin/installkernel or'
259 echo ' install to $$(INSTALL_PATH) and run lilo'
260endef