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 subject to the terms and conditions of the GNU General Public
5# License. See the file "COPYING" in the main directory of this archive
6# for more details.
7#
8# Copyright (C) 1995-2001 by Russell King
9
10LDFLAGS_vmlinux :=-p --no-undefined -X
11CPPFLAGS_vmlinux.lds = -DTEXTADDR=$(TEXTADDR) -DDATAADDR=$(DATAADDR)
12OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
13GZFLAGS :=-9
14#CFLAGS +=-pipe
15
16# Do not use arch/arm/defconfig - it's always outdated.
17# Select a platform tht is kept up-to-date
18KBUILD_DEFCONFIG := versatile_defconfig
19
20ifeq ($(CONFIG_FRAME_POINTER),y)
21CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
22endif
23
24ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
25CPPFLAGS += -mbig-endian
26AS += -EB
27LD += -EB
28else
29CPPFLAGS += -mlittle-endian
30AS += -EL
31LD += -EL
32endif
33
34comma = ,
35
36# This selects which instruction set is used.
37# Note that GCC does not numerically define an architecture version
38# macro, but instead defines a whole series of macros which makes
39# testing for a specific architecture or later rather impossible.
40arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
41arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4)
42arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
43arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
44
45# This selects how we optimise for the processor.
46tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
47tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
48tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
49tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
50tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
51tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
52tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
53tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
54tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
55tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
56tune-$(CONFIG_CPU_V6) :=-mtune=strongarm
57
58# Need -Uarm for gcc < 3.x
59CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
60CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
61AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
62
63CHECKFLAGS += -D__arm__
64
65#Default value
66head-y := arch/arm/kernel/head.o arch/arm/kernel/init_task.o
67textaddr-y := 0xC0008000
68
69 machine-$(CONFIG_ARCH_RPC) := rpc
70 machine-$(CONFIG_ARCH_EBSA110) := ebsa110
71 machine-$(CONFIG_ARCH_CLPS7500) := clps7500
72 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500
73 machine-$(CONFIG_FOOTBRIDGE) := footbridge
74 incdir-$(CONFIG_FOOTBRIDGE) := ebsa285
75textaddr-$(CONFIG_ARCH_CO285) := 0x60008000
76 machine-$(CONFIG_ARCH_CO285) := footbridge
77 incdir-$(CONFIG_ARCH_CO285) := ebsa285
78 machine-$(CONFIG_ARCH_SHARK) := shark
79 machine-$(CONFIG_ARCH_SA1100) := sa1100
80ifeq ($(CONFIG_ARCH_SA1100),y)
81# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
82textaddr-$(CONFIG_SA1111) := 0xc0208000
83endif
84 machine-$(CONFIG_ARCH_PXA) := pxa
85 machine-$(CONFIG_ARCH_L7200) := l7200
86 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
87 machine-$(CONFIG_ARCH_CAMELOT) := epxa10db
88textaddr-$(CONFIG_ARCH_CLPS711X) := 0xc0028000
89 machine-$(CONFIG_ARCH_CLPS711X) := clps711x
90textaddr-$(CONFIG_ARCH_FORTUNET) := 0xc0008000
91 machine-$(CONFIG_ARCH_IOP3XX) := iop3xx
92 machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
93 machine-$(CONFIG_ARCH_IXP2000) := ixp2000
94 machine-$(CONFIG_ARCH_OMAP1) := omap1
95 incdir-$(CONFIG_ARCH_OMAP) := omap
96 machine-$(CONFIG_ARCH_S3C2410) := s3c2410
97 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
98 machine-$(CONFIG_ARCH_VERSATILE) := versatile
99 machine-$(CONFIG_ARCH_IMX) := imx
100 machine-$(CONFIG_ARCH_H720X) := h720x
101 machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
102
103ifeq ($(CONFIG_ARCH_EBSA110),y)
104# This is what happens if you forget the IOCS16 line.
105# PCMCIA cards stop working.
106CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
107export CFLAGS_3c589_cs.o
108endif
109
110TEXTADDR := $(textaddr-y)
111ifeq ($(CONFIG_XIP_KERNEL),y)
112 DATAADDR := $(TEXTADDR)
113 xipaddr-$(CONFIG_ARCH_CO285) := 0x5f000000
114 xipaddr-y ?= 0xbf000000
115 # Replace phys addr with virt addr while keeping offset from base.
116 TEXTADDR := $(shell echo $(CONFIG_XIP_PHYS_ADDR) $(xipaddr-y) | \
117 awk --non-decimal-data '/[:xdigit:]/ \
118 { printf("0x%x\n", and($$1, 0x000fffff) + $$2) }' )
119endif
120
121ifeq ($(incdir-y),)
122incdir-y := $(machine-y)
123endif
124INCDIR := arch-$(incdir-y)
125ifneq ($(machine-y),)
126MACHINE := arch/arm/mach-$(machine-y)/
127else
128MACHINE :=
129endif
130
131export TEXTADDR DATAADDR GZFLAGS
132
133# Do we have FASTFPE?
134FASTFPE :=arch/arm/fastfpe
135ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
136FASTFPE_OBJ :=$(FASTFPE)/
137endif
138
139# If we have a machine-specific directory, then include it in the build.
140core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
141core-y += $(MACHINE)
142core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
143core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
144core-$(CONFIG_VFP) += arch/arm/vfp/
145
146# If we have a common platform directory, then include it in the build.
147core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/
148
149drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
150drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
151drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/
152
153libs-y += arch/arm/lib/
154
155# Default target when executing plain make
156ifeq ($(CONFIG_XIP_KERNEL),y)
157all: xipImage
158else
159all: zImage
160endif
161
162boot := arch/arm/boot
163
164# Update machine arch and proc symlinks if something which affects
165# them changed. We use .arch to indicate when they were updated
166# last, otherwise make uses the target directory mtime.
167
168include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/MARKER
169 @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
170ifneq ($(KBUILD_SRC),)
171 $(Q)mkdir -p include/asm-arm
172 $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
173else
174 $(Q)ln -fsn $(INCDIR) include/asm-arm/arch
175endif
176 @touch $@
177
178archprepare: maketools
179
180.PHONY: maketools FORCE
181maketools: include/linux/version.h include/asm-arm/.arch FORCE
182 $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
183
184# Convert bzImage to zImage
185bzImage: zImage
186
187zImage Image xipImage bootpImage uImage: vmlinux
188 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
189
190zinstall install: vmlinux
191 $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
192
193CLEAN_FILES += include/asm-arm/mach-types.h \
194 include/asm-arm/arch include/asm-arm/.arch
195
196# We use MRPROPER_FILES and CLEAN_FILES now
197archclean:
198 $(Q)$(MAKE) $(clean)=$(boot)
199
200# My testing targets (bypasses dependencies)
201bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
202i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
203
204
205define archhelp
206 echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
207 echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
208 echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
209 echo ' bootpImage - Combined zImage and initial RAM disk'
210 echo ' (supply initrd image via make variable INITRD=<path>)'
211 echo ' install - Install uncompressed kernel'
212 echo ' zinstall - Install compressed kernel'
213 echo ' Install using (your) ~/bin/installkernel or'
214 echo ' (distribution) /sbin/installkernel or'
215 echo ' install to $$(INSTALL_PATH) and run lilo'
216endef