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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334## 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 := --no-undefined -X --pic-veneer -z norelroifeq ($(CONFIG_CPU_ENDIAN_BE8),y)LDFLAGS_vmlinux += --be8KBUILD_LDFLAGS_MODULE += --be8endif
GZFLAGS :=-9#KBUILD_CFLAGS +=-pipe
# Never generate .eh_frameKBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm)
# Disable FDPIC ABIKBUILD_CFLAGS += $(call cc-option,-mno-fdpic)
# This should work on most of the modern platformsKBUILD_DEFCONFIG := multi_v7_defconfig
# defines filename extension depending memory management type.ifeq ($(CONFIG_MMU),)MMUEXT := -nommuKBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access)endif
ifeq ($(CONFIG_FRAME_POINTER),y)KBUILD_CFLAGS +=-fno-omit-frame-pointerifeq ($(CONFIG_CC_IS_GCC),y)KBUILD_CFLAGS += -mapcs -mno-sched-prologendifendif
ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)KBUILD_CPPFLAGS += -mbig-endianCHECKFLAGS += -D__ARMEB__KBUILD_LDFLAGS += -EBelseKBUILD_CPPFLAGS += -mlittle-endianCHECKFLAGS += -D__ARMEL__KBUILD_LDFLAGS += -ELendif
## The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and# later may result in code being generated that handles signed short and signed# char struct members incorrectly. So disable it.# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932)#KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra)
# This selects which instruction set is used.arch-$(CONFIG_CPU_32v7M) :=-march=armv7-march-$(CONFIG_CPU_32v7) :=-march=armv7-aarch-$(CONFIG_CPU_32v6) :=-march=armv6# Only override the compiler option if ARMv6. The ARMv6K extensions are# always available in ARMv7ifeq ($(CONFIG_CPU_32v6),y)arch-$(CONFIG_CPU_32v6K) :=-march=armv6kendifarch-$(CONFIG_CPU_32v5) :=-march=armv5tearch-$(CONFIG_CPU_32v4T) :=-march=armv4tarch-$(CONFIG_CPU_32v4) :=-march=armv4arch-$(CONFIG_CPU_32v3) :=-march=armv3m
# 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.cpp-$(CONFIG_CPU_32v7M) :=-D__LINUX_ARM_ARCH__=7cpp-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7cpp-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6# Only override the compiler option if ARMv6. The ARMv6K extensions are# always available in ARMv7ifeq ($(CONFIG_CPU_32v6),y)cpp-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6endifcpp-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5cpp-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4cpp-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4cpp-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3
# This selects how we optimise for the processor.tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7tdmitune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7tdmitune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7tdmitune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9tdmitune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9tdmitune-$(CONFIG_CPU_ARM946E) :=-mtune=arm9etune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9tdmitune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9tdmitune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9tdmitune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9tdmitune-$(CONFIG_CPU_FA526) :=-mtune=arm9tdmitune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscaletune-$(CONFIG_CPU_XSC3) :=-mtune=xscaletune-$(CONFIG_CPU_FEROCEON) :=-mtune=xscaletune-$(CONFIG_CPU_V6) :=-mtune=arm1136j-stune-$(CONFIG_CPU_V6K) :=-mtune=arm1136j-s
ifeq ($(CONFIG_AEABI),y)CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfpelseCFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)endif
ifeq ($(CONFIG_ARM_UNWIND),y)CFLAGS_ABI +=-funwind-tablesendif
ifeq ($(CONFIG_CC_IS_CLANG),y)CFLAGS_ABI += -meabi gnuendif
ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y)KBUILD_CFLAGS += -mtp=cp15endif
# Accept old syntax despite ".syntax unified"AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
# The GCC option -ffreestanding is required in order to compile code containing# ARM/NEON intrinsics in a non C99-compliant environment (such as the kernel)CC_FLAGS_FPU := -ffreestanding# Enable <arm_neon.h>CC_FLAGS_FPU += -isystem $(shell $(CC) -print-file-name=include)CC_FLAGS_FPU += -march=armv7-a -mfloat-abi=softfp -mfpu=neon
ifeq ($(CONFIG_THUMB2_KERNEL),y)CFLAGS_ISA :=-Wa,-mimplicit-it=always $(AFLAGS_NOWARN)AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumbCFLAGS_ISA +=-mthumbelseCFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN)AFLAGS_ISA :=$(CFLAGS_ISA)endif
# Need -Uarm for gcc < 3.xKBUILD_CPPFLAGS +=$(cpp-y)KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -UarmKBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) -Wa,$(arch-y) $(tune-y) -include $(srctree)/arch/arm/include/asm/unified.h -msoft-floatKBUILD_RUSTFLAGS += --target=arm-unknown-linux-gnueabi
CHECKFLAGS += -D__arm__
# Text offset. This list is sorted numerically by address in order to# provide a means to avoid/resolve conflicts in multi-arch kernels.# Note: the 32kB below this value is reserved for use by the kernel# during boot, and this offset is critical to the functioning of# kexec-tools.textofs-y := 0x00008000# RTD1195 has Boot ROM at start of address spacetextofs-$(CONFIG_ARCH_REALTEK) := 0x00108000# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memoryifeq ($(CONFIG_ARCH_SA1100),y)textofs-$(CONFIG_SA1111) := 0x00208000endiftextofs-$(CONFIG_ARCH_QCOM_RESERVE_SMEM) := 0x00208000textofs-$(CONFIG_ARCH_MESON) := 0x00208000textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000
# Machine directory name. This list is sorted alphanumerically# by CONFIG_* macro name.machine-$(CONFIG_ARCH_ACTIONS) += actionsmachine-$(CONFIG_ARCH_ALPINE) += alpinemachine-$(CONFIG_ARCH_ARTPEC) += artpecmachine-$(CONFIG_ARCH_ASPEED) += aspeedmachine-$(CONFIG_ARCH_AT91) += at91machine-$(CONFIG_ARCH_AXXIA) += axxiamachine-$(CONFIG_ARCH_BCM) += bcmmachine-$(CONFIG_ARCH_BERLIN) += berlinmachine-$(CONFIG_ARCH_CLPS711X) += clps711xmachine-$(CONFIG_ARCH_DAVINCI) += davincimachine-$(CONFIG_ARCH_DIGICOLOR) += digicolormachine-$(CONFIG_ARCH_DOVE) += dovemachine-$(CONFIG_ARCH_EXYNOS) += exynosmachine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridgemachine-$(CONFIG_ARCH_GEMINI) += geminimachine-$(CONFIG_ARCH_HIGHBANK) += highbankmachine-$(CONFIG_ARCH_HISI) += hisimachine-$(CONFIG_ARCH_IXP4XX) += ixp4xxmachine-$(CONFIG_ARCH_KEYSTONE) += keystonemachine-$(CONFIG_ARCH_LPC18XX) += lpc18xxmachine-$(CONFIG_ARCH_LPC32XX) += lpc32xxmachine-$(CONFIG_ARCH_MESON) += mesonmachine-$(CONFIG_ARCH_MMP) += mmpmachine-$(CONFIG_ARCH_MV78XX0) += mv78xx0machine-$(CONFIG_ARCH_MVEBU) += mvebumachine-$(CONFIG_ARCH_MXC) += imxmachine-$(CONFIG_ARCH_MEDIATEK) += mediatekmachine-$(CONFIG_ARCH_MILBEAUT) += milbeautmachine-$(CONFIG_ARCH_MXS) += mxsmachine-$(CONFIG_ARCH_MSTARV7) += mstarmachine-$(CONFIG_ARCH_NOMADIK) += nomadikmachine-$(CONFIG_ARCH_NPCM) += npcmmachine-$(CONFIG_ARCH_OMAP1) += omap1machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2machine-$(CONFIG_ARCH_ORION5X) += orion5xmachine-$(CONFIG_ARCH_PXA) += pxamachine-$(CONFIG_ARCH_QCOM) += qcommachine-$(CONFIG_ARCH_REALTEK) += realtekmachine-$(CONFIG_ARCH_ROCKCHIP) += rockchipmachine-$(CONFIG_ARCH_RPC) += rpcmachine-$(CONFIG_PLAT_SAMSUNG) += s3cmachine-$(CONFIG_ARCH_S5PV210) += s5pv210machine-$(CONFIG_ARCH_SA1100) += sa1100machine-$(CONFIG_ARCH_RENESAS) += shmobilemachine-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpgamachine-$(CONFIG_ARCH_STI) += stimachine-$(CONFIG_ARCH_STM32) += stm32machine-$(CONFIG_ARCH_SUNXI) += sunximachine-$(CONFIG_ARCH_TEGRA) += tegramachine-$(CONFIG_ARCH_U8500) += ux500machine-$(CONFIG_ARCH_VT8500) += vt8500machine-$(CONFIG_ARCH_ZTE) += ztemachine-$(CONFIG_ARCH_ZYNQ) += zynqmachine-$(CONFIG_PLAT_VERSATILE) += versatilemachine-$(CONFIG_PLAT_SPEAR) += spear
# legacy platforms provide their own mach/*.h headers globally,# these three are mutually exclusivemachdirs-$(CONFIG_ARCH_FOOTBRIDGE) += arch/arm/mach-footbridgemachdirs-$(CONFIG_ARCH_RPC) += arch/arm/mach-rpcmachdirs-$(CONFIG_ARCH_SA1100) += arch/arm/mach-sa1100KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%/include,$(machdirs-y))
# The byte offset of the kernel image in RAM from the start of RAM.TEXT_OFFSET := $(textofs-y)
export TEXT_OFFSET GZFLAGS MMUEXT
# If we have a machine-specific directory, then include it in the build.core-y += $(patsubst %,arch/arm/mach-%/,$(machine-y))# For cleaningcore- += $(patsubst %,arch/arm/mach-%/,$(machine-))
core-$(CONFIG_PLAT_ORION) += arch/arm/plat-orion/
libs-y := arch/arm/lib/ $(libs-y)
# Default target when executing plain makeboot := arch/arm/bootifeq ($(CONFIG_XIP_KERNEL),y)KBUILD_IMAGE := $(boot)/xipImageelseKBUILD_IMAGE := $(boot)/zImageendif
ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)prepare: stack_protector_prepareifeq ($(CONFIG_CC_HAVE_STACKPROTECTOR_TLS),y)stack_protector_prepare: prepare0 $(eval KBUILD_CFLAGS += \ -mstack-protector-guard=tls \ -mstack-protector-guard-offset=$(shell \ awk '{if ($$2 == "TSK_STACK_CANARY") print $$3;}'\ $(objtree)/include/generated/asm-offsets.h))elsestack_protector_prepare: prepare0 $(eval SSP_PLUGIN_CFLAGS := \ -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ awk '{if ($$2 == "TSK_STACK_CANARY") print $$3;}'\ $(objtree)/include/generated/asm-offsets.h)) $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS))endifendif
all: $(notdir $(KBUILD_IMAGE))
archheaders: $(Q)$(MAKE) $(build)=arch/arm/tools uapi
archprepare: $(Q)$(MAKE) $(build)=arch/arm/tools kapi
# Convert bzImage to zImagebzImage: zImage
BOOT_TARGETS = zImage Image xipImage bootpImage uImageINSTALL_TARGETS = zinstall uinstall install
PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
bootpImage uImage: zImagezImage: Image
$(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ @$(kecho) ' Kernel: $(boot)/$@ is ready'
$(INSTALL_TARGETS): KBUILD_IMAGE = $(boot)/$(patsubst %install,%Image,$@)$(INSTALL_TARGETS): $(call cmd,install)
vdso-install-$(CONFIG_VDSO) += arch/arm/vdso/vdso.so.dbg
# My testing targets (bypasses dependencies)bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/bootpImage
include $(srctree)/scripts/Makefile.defconfPHONY += multi_v7_lpae_defconfigmulti_v7_lpae_defconfig: $(call merge_into_defconfig,multi_v7_defconfig,lpae)
define archhelp echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' echo '* xipImage - XIP kernel image, if configured (arch/$(ARCH)/boot/xipImage)' echo ' uImage - U-Boot wrapped zImage' 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 ' uinstall - Install U-Boot wrapped compressed kernel' echo ' Install using (your) ~/bin/$(INSTALLKERNEL) or' echo ' (distribution) /sbin/$(INSTALLKERNEL) or' echo ' install to $$(INSTALL_PATH) and run lilo' echo echo ' multi_v7_lpae_defconfig - multi_v7_defconfig with CONFIG_ARM_LPAE enabled'endef