241 lines
8.4 KiB
Makefile
241 lines
8.4 KiB
Makefile
#
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# arch/arm/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies.
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# Copyright (C) 1995-2001 by Russell King
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LDFLAGS_vmlinux :=-p --no-undefined -X
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CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET)
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OBJCOPYFLAGS :=-O binary -R .note -R .comment -S
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GZFLAGS :=-9
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#CFLAGS +=-pipe
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# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
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CFLAGS +=$(call cc-option,-marm,)
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# Do not use arch/arm/defconfig - it's always outdated.
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# Select a platform tht is kept up-to-date
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KBUILD_DEFCONFIG := versatile_defconfig
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# defines filename extension depending memory manement type.
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ifeq ($(CONFIG_MMU),)
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MMUEXT := -nommu
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endif
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ifeq ($(CONFIG_FRAME_POINTER),y)
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CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog
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endif
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ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
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CPPFLAGS += -mbig-endian
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AS += -EB
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LD += -EB
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else
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CPPFLAGS += -mlittle-endian
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AS += -EL
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LD += -EL
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endif
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comma = ,
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# This selects which instruction set is used.
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# Note that GCC does not numerically define an architecture version
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# macro, but instead defines a whole series of macros which makes
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# testing for a specific architecture or later rather impossible.
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arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6)
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arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k)
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arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t)
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arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t
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arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4
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arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3
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# This selects how we optimise for the processor.
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tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610
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tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710
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tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi
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tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi
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tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi
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tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_ARM946T) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi)
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tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi
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tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110
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tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100
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tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
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tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
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tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
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ifeq ($(CONFIG_AEABI),y)
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CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork
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else
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CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
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endif
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# Need -Uarm for gcc < 3.x
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CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
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AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
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CHECKFLAGS += -D__arm__
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#Default value
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head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o
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textofs-y := 0x00008000
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machine-$(CONFIG_ARCH_RPC) := rpc
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machine-$(CONFIG_ARCH_EBSA110) := ebsa110
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machine-$(CONFIG_ARCH_CLPS7500) := clps7500
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incdir-$(CONFIG_ARCH_CLPS7500) := cl7500
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machine-$(CONFIG_FOOTBRIDGE) := footbridge
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incdir-$(CONFIG_FOOTBRIDGE) := ebsa285
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machine-$(CONFIG_ARCH_CO285) := footbridge
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incdir-$(CONFIG_ARCH_CO285) := ebsa285
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machine-$(CONFIG_ARCH_SHARK) := shark
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machine-$(CONFIG_ARCH_SA1100) := sa1100
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ifeq ($(CONFIG_ARCH_SA1100),y)
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# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory
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textofs-$(CONFIG_SA1111) := 0x00208000
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endif
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machine-$(CONFIG_ARCH_PXA) := pxa
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machine-$(CONFIG_ARCH_L7200) := l7200
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machine-$(CONFIG_ARCH_INTEGRATOR) := integrator
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textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000
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machine-$(CONFIG_ARCH_CLPS711X) := clps711x
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machine-$(CONFIG_ARCH_IOP32X) := iop32x
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machine-$(CONFIG_ARCH_IOP33X) := iop33x
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machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx
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machine-$(CONFIG_ARCH_IXP2000) := ixp2000
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machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx
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machine-$(CONFIG_ARCH_OMAP1) := omap1
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machine-$(CONFIG_ARCH_OMAP2) := omap2
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incdir-$(CONFIG_ARCH_OMAP) := omap
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machine-$(CONFIG_ARCH_S3C2410) := s3c2410
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machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x
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machine-$(CONFIG_ARCH_VERSATILE) := versatile
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machine-$(CONFIG_ARCH_IMX) := imx
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machine-$(CONFIG_ARCH_H720X) := h720x
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machine-$(CONFIG_ARCH_AAEC2000) := aaec2000
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machine-$(CONFIG_ARCH_REALVIEW) := realview
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machine-$(CONFIG_ARCH_AT91) := at91rm9200
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machine-$(CONFIG_ARCH_EP93XX) := ep93xx
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machine-$(CONFIG_ARCH_PNX4008) := pnx4008
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machine-$(CONFIG_ARCH_NETX) := netx
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ifeq ($(CONFIG_ARCH_EBSA110),y)
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# This is what happens if you forget the IOCS16 line.
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# PCMCIA cards stop working.
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CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL
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export CFLAGS_3c589_cs.o
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endif
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# The byte offset of the kernel image in RAM from the start of RAM.
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TEXT_OFFSET := $(textofs-y)
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ifeq ($(incdir-y),)
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incdir-y := $(machine-y)
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endif
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INCDIR := arch-$(incdir-y)
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ifneq ($(machine-y),)
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MACHINE := arch/arm/mach-$(machine-y)/
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else
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MACHINE :=
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endif
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export TEXT_OFFSET GZFLAGS MMUEXT
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# Do we have FASTFPE?
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FASTFPE :=arch/arm/fastfpe
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ifeq ($(FASTFPE),$(wildcard $(FASTFPE)))
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FASTFPE_OBJ :=$(FASTFPE)/
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endif
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# If we have a machine-specific directory, then include it in the build.
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core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
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core-y += $(MACHINE)
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core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/
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core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ)
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core-$(CONFIG_VFP) += arch/arm/vfp/
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# If we have a common platform directory, then include it in the build.
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core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/
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core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/
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drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
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drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/
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drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/
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libs-y := arch/arm/lib/ $(libs-y)
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# Default target when executing plain make
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ifeq ($(CONFIG_XIP_KERNEL),y)
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KBUILD_IMAGE := xipImage
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else
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KBUILD_IMAGE := zImage
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endif
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all: $(KBUILD_IMAGE)
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boot := arch/arm/boot
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# Update machine arch and proc symlinks if something which affects
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# them changed. We use .arch to indicate when they were updated
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# last, otherwise make uses the target directory mtime.
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include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf
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@echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)'
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ifneq ($(KBUILD_SRC),)
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$(Q)mkdir -p include/asm-arm
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$(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch
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else
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$(Q)ln -fsn $(INCDIR) include/asm-arm/arch
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endif
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@touch $@
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archprepare: maketools
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PHONY += maketools FORCE
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maketools: include/linux/version.h include/asm-arm/.arch FORCE
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$(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h
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# Convert bzImage to zImage
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bzImage: zImage
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zImage Image xipImage bootpImage uImage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
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zinstall install: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
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CLEAN_FILES += include/asm-arm/mach-types.h \
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include/asm-arm/arch include/asm-arm/.arch
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# We use MRPROPER_FILES and CLEAN_FILES now
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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# My testing targets (bypasses dependencies)
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bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
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i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
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define archhelp
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echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)'
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echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)'
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echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)'
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echo ' bootpImage - Combined zImage and initial RAM disk'
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echo ' (supply initrd image via make variable INITRD=<path>)'
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echo ' install - Install uncompressed kernel'
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echo ' zinstall - Install compressed kernel'
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echo ' Install using (your) ~/bin/installkernel or'
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echo ' (distribution) /sbin/installkernel or'
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echo ' install to $$(INSTALL_PATH) and run lilo'
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endef
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