# # arch/arm/Makefile # # This file is included by the global makefile so that you can add your own # architecture-specific flags and dependencies. # # This file is subject to the terms and conditions of the GNU General Public # License. See the file "COPYING" in the main directory of this archive # for more details. # # Copyright (C) 1995-2001 by Russell King LDFLAGS_vmlinux :=-p --no-undefined -X CPPFLAGS_vmlinux.lds = -DTEXT_OFFSET=$(TEXT_OFFSET) OBJCOPYFLAGS :=-O binary -R .note -R .comment -S GZFLAGS :=-9 #CFLAGS +=-pipe # Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb: CFLAGS +=$(call cc-option,-marm,) # Do not use arch/arm/defconfig - it's always outdated. # Select a platform tht is kept up-to-date KBUILD_DEFCONFIG := versatile_defconfig # defines filename extension depending memory manement type. ifeq ($(CONFIG_MMU),) MMUEXT := -nommu endif ifeq ($(CONFIG_FRAME_POINTER),y) CFLAGS +=-fno-omit-frame-pointer -mapcs -mno-sched-prolog endif ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) CPPFLAGS += -mbig-endian AS += -EB LD += -EB else CPPFLAGS += -mlittle-endian AS += -EL LD += -EL endif comma = , # This selects which instruction set is used. # Note that GCC does not numerically define an architecture version # macro, but instead defines a whole series of macros which makes # testing for a specific architecture or later rather impossible. arch-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6,-march=armv5t -Wa$(comma)-march=armv6) arch-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) arch-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 $(call cc-option,-march=armv5te,-march=armv4t) arch-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 -march=armv4t arch-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 -march=armv4 arch-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 -march=armv3 # This selects how we optimise for the processor. tune-$(CONFIG_CPU_ARM610) :=-mtune=arm610 tune-$(CONFIG_CPU_ARM710) :=-mtune=arm710 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmi tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmi tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmi tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_ARM946T) :=$(call cc-option,-mtune=arm9e,-mtune=arm9tdmi) tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmi tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 tune-$(CONFIG_CPU_XSCALE) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale tune-$(CONFIG_CPU_XSC3) :=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale tune-$(CONFIG_CPU_V6) :=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) ifeq ($(CONFIG_AEABI),y) CFLAGS_ABI :=-mabi=aapcs-linux -mno-thumb-interwork else CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) endif # Need -Uarm for gcc < 3.x CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float CHECKFLAGS += -D__arm__ #Default value head-y := arch/arm/kernel/head$(MMUEXT).o arch/arm/kernel/init_task.o textofs-y := 0x00008000 machine-$(CONFIG_ARCH_RPC) := rpc machine-$(CONFIG_ARCH_EBSA110) := ebsa110 machine-$(CONFIG_ARCH_CLPS7500) := clps7500 incdir-$(CONFIG_ARCH_CLPS7500) := cl7500 machine-$(CONFIG_FOOTBRIDGE) := footbridge incdir-$(CONFIG_FOOTBRIDGE) := ebsa285 machine-$(CONFIG_ARCH_CO285) := footbridge incdir-$(CONFIG_ARCH_CO285) := ebsa285 machine-$(CONFIG_ARCH_SHARK) := shark machine-$(CONFIG_ARCH_SA1100) := sa1100 ifeq ($(CONFIG_ARCH_SA1100),y) # SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory textofs-$(CONFIG_SA1111) := 0x00208000 endif machine-$(CONFIG_ARCH_PXA) := pxa machine-$(CONFIG_ARCH_L7200) := l7200 machine-$(CONFIG_ARCH_INTEGRATOR) := integrator textofs-$(CONFIG_ARCH_CLPS711X) := 0x00028000 machine-$(CONFIG_ARCH_CLPS711X) := clps711x machine-$(CONFIG_ARCH_IOP32X) := iop32x machine-$(CONFIG_ARCH_IOP33X) := iop33x machine-$(CONFIG_ARCH_IOP13XX) := iop13xx machine-$(CONFIG_ARCH_IXP4XX) := ixp4xx machine-$(CONFIG_ARCH_IXP2000) := ixp2000 machine-$(CONFIG_ARCH_IXP23XX) := ixp23xx machine-$(CONFIG_ARCH_OMAP1) := omap1 machine-$(CONFIG_ARCH_OMAP2) := omap2 incdir-$(CONFIG_ARCH_OMAP) := omap machine-$(CONFIG_ARCH_S3C2410) := s3c2410 machine-$(CONFIG_ARCH_LH7A40X) := lh7a40x machine-$(CONFIG_ARCH_VERSATILE) := versatile machine-$(CONFIG_ARCH_IMX) := imx machine-$(CONFIG_ARCH_H720X) := h720x machine-$(CONFIG_ARCH_AAEC2000) := aaec2000 machine-$(CONFIG_ARCH_REALVIEW) := realview machine-$(CONFIG_ARCH_AT91) := at91rm9200 machine-$(CONFIG_ARCH_EP93XX) := ep93xx machine-$(CONFIG_ARCH_PNX4008) := pnx4008 machine-$(CONFIG_ARCH_NETX) := netx ifeq ($(CONFIG_ARCH_EBSA110),y) # This is what happens if you forget the IOCS16 line. # PCMCIA cards stop working. CFLAGS_3c589_cs.o :=-DISA_SIXTEEN_BIT_PERIPHERAL export CFLAGS_3c589_cs.o endif # The byte offset of the kernel image in RAM from the start of RAM. TEXT_OFFSET := $(textofs-y) ifeq ($(incdir-y),) incdir-y := $(machine-y) endif INCDIR := arch-$(incdir-y) ifneq ($(machine-y),) MACHINE := arch/arm/mach-$(machine-y)/ else MACHINE := endif export TEXT_OFFSET GZFLAGS MMUEXT # Do we have FASTFPE? FASTFPE :=arch/arm/fastfpe ifeq ($(FASTFPE),$(wildcard $(FASTFPE))) FASTFPE_OBJ :=$(FASTFPE)/ endif # If we have a machine-specific directory, then include it in the build. core-y += arch/arm/kernel/ arch/arm/mm/ arch/arm/common/ core-y += $(MACHINE) core-$(CONFIG_FPE_NWFPE) += arch/arm/nwfpe/ core-$(CONFIG_FPE_FASTFPE) += $(FASTFPE_OBJ) core-$(CONFIG_VFP) += arch/arm/vfp/ # If we have a common platform directory, then include it in the build. core-$(CONFIG_PLAT_IOP) += arch/arm/plat-iop/ core-$(CONFIG_ARCH_OMAP) += arch/arm/plat-omap/ drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/ drivers-$(CONFIG_ARCH_CLPS7500) += drivers/acorn/char/ drivers-$(CONFIG_ARCH_L7200) += drivers/acorn/char/ libs-y := arch/arm/lib/ $(libs-y) # Default target when executing plain make ifeq ($(CONFIG_XIP_KERNEL),y) KBUILD_IMAGE := xipImage else KBUILD_IMAGE := zImage endif all: $(KBUILD_IMAGE) boot := arch/arm/boot # Update machine arch and proc symlinks if something which affects # them changed. We use .arch to indicate when they were updated # last, otherwise make uses the target directory mtime. include/asm-arm/.arch: $(wildcard include/config/arch/*.h) include/config/auto.conf @echo ' SYMLINK include/asm-arm/arch -> include/asm-arm/$(INCDIR)' ifneq ($(KBUILD_SRC),) $(Q)mkdir -p include/asm-arm $(Q)ln -fsn $(srctree)/include/asm-arm/$(INCDIR) include/asm-arm/arch else $(Q)ln -fsn $(INCDIR) include/asm-arm/arch endif @touch $@ archprepare: maketools PHONY += maketools FORCE maketools: include/linux/version.h include/asm-arm/.arch FORCE $(Q)$(MAKE) $(build)=arch/arm/tools include/asm-arm/mach-types.h # Convert bzImage to zImage bzImage: zImage zImage Image xipImage bootpImage uImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ zinstall install: vmlinux $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ CLEAN_FILES += include/asm-arm/mach-types.h \ include/asm-arm/arch include/asm-arm/.arch # We use MRPROPER_FILES and CLEAN_FILES now archclean: $(Q)$(MAKE) $(clean)=$(boot) # My testing targets (bypasses dependencies) bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage i zi:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ define archhelp echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' echo ' bootpImage - Combined zImage and initial RAM disk' echo ' (supply initrd image via make variable INITRD=<path>)' echo ' install - Install uncompressed kernel' echo ' zinstall - Install compressed kernel' echo ' Install using (your) ~/bin/installkernel or' echo ' (distribution) /sbin/installkernel or' echo ' install to $$(INSTALL_PATH) and run lilo' endef