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Diffstat (limited to 'arch/arm/Makefile')
| -rw-r--r-- | arch/arm/Makefile | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile new file mode 100644 index 0000000000..547e5856ea --- /dev/null +++ b/arch/arm/Makefile @@ -0,0 +1,337 @@ +# +# 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 norelro +ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) +LDFLAGS_vmlinux += --be8 +KBUILD_LDFLAGS_MODULE += --be8 +endif + +GZFLAGS :=-9 +#KBUILD_CFLAGS +=-pipe + +# Never generate .eh_frame +KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) + +# Disable FDPIC ABI +KBUILD_CFLAGS += $(call cc-option,-mno-fdpic) + +# This should work on most of the modern platforms +KBUILD_DEFCONFIG := multi_v7_defconfig + +# defines filename extension depending memory management type. +ifeq ($(CONFIG_MMU),) +MMUEXT := -nommu +KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) +endif + +ifeq ($(CONFIG_FRAME_POINTER),y) +KBUILD_CFLAGS +=-fno-omit-frame-pointer +ifeq ($(CONFIG_CC_IS_GCC),y) +KBUILD_CFLAGS += -mapcs -mno-sched-prolog +endif +endif + +ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) +KBUILD_CPPFLAGS += -mbig-endian +CHECKFLAGS += -D__ARMEB__ +KBUILD_LDFLAGS += -EB +else +KBUILD_CPPFLAGS += -mlittle-endian +CHECKFLAGS += -D__ARMEL__ +KBUILD_LDFLAGS += -EL +endif + +# +# 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-m +arch-$(CONFIG_CPU_32v7) :=-march=armv7-a +arch-$(CONFIG_CPU_32v6) :=-march=armv6 +# Only override the compiler option if ARMv6. The ARMv6K extensions are +# always available in ARMv7 +ifeq ($(CONFIG_CPU_32v6),y) +arch-$(CONFIG_CPU_32v6K) :=-march=armv6k +endif +arch-$(CONFIG_CPU_32v5) :=-march=armv5te +arch-$(CONFIG_CPU_32v4T) :=-march=armv4t +arch-$(CONFIG_CPU_32v4) :=-march=armv4 +arch-$(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-$(CONFIG_CPU_32v7M) :=-D__LINUX_ARM_ARCH__=7 +cpp-$(CONFIG_CPU_32v7) :=-D__LINUX_ARM_ARCH__=7 +cpp-$(CONFIG_CPU_32v6) :=-D__LINUX_ARM_ARCH__=6 +# Only override the compiler option if ARMv6. The ARMv6K extensions are +# always available in ARMv7 +ifeq ($(CONFIG_CPU_32v6),y) +cpp-$(CONFIG_CPU_32v6K) :=-D__LINUX_ARM_ARCH__=6 +endif +cpp-$(CONFIG_CPU_32v5) :=-D__LINUX_ARM_ARCH__=5 +cpp-$(CONFIG_CPU_32v4T) :=-D__LINUX_ARM_ARCH__=4 +cpp-$(CONFIG_CPU_32v4) :=-D__LINUX_ARM_ARCH__=4 +cpp-$(CONFIG_CPU_32v3) :=-D__LINUX_ARM_ARCH__=3 + +# This selects how we optimise for the processor. +tune-$(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-$(CONFIG_CPU_ARM946E) :=-mtune=arm9e +tune-$(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_FA526) :=-mtune=arm9tdmi +tune-$(CONFIG_CPU_SA110) :=-mtune=strongarm110 +tune-$(CONFIG_CPU_SA1100) :=-mtune=strongarm1100 +tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscale +tune-$(CONFIG_CPU_XSC3) :=-mtune=xscale +tune-$(CONFIG_CPU_FEROCEON) :=-mtune=xscale +tune-$(CONFIG_CPU_V6) :=-mtune=arm1136j-s +tune-$(CONFIG_CPU_V6K) :=-mtune=arm1136j-s + +ifeq ($(CONFIG_AEABI),y) +CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp +else +CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) +endif + +ifeq ($(CONFIG_ARM_UNWIND),y) +CFLAGS_ABI +=-funwind-tables +endif + +ifeq ($(CONFIG_CC_IS_CLANG),y) +CFLAGS_ABI += -meabi gnu +endif + +ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y) +KBUILD_CFLAGS += -mtp=cp15 +endif + +# Accept old syntax despite ".syntax unified" +AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) + +ifeq ($(CONFIG_THUMB2_KERNEL),y) +CFLAGS_ISA :=-Wa,-mimplicit-it=always $(AFLAGS_NOWARN) +AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb +CFLAGS_ISA +=-mthumb +else +CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN) +AFLAGS_ISA :=$(CFLAGS_ISA) +endif + +# Need -Uarm for gcc < 3.x +KBUILD_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 -Uarm +KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) -Wa,$(arch-y) $(tune-y) -include asm/unified.h -msoft-float + +CHECKFLAGS += -D__arm__ + +# Text offset. This list is sorted numerically by address in order to +# provide a means to avoid/resolve conflicts in multi-arch kernels. +# Note: the 32kB below this value is reserved for use by the kernel +# during boot, and this offset is critical to the functioning of +# kexec-tools. +textofs-y := 0x00008000 +# RTD1195 has Boot ROM at start of address space +textofs-$(CONFIG_ARCH_REALTEK) := 0x00108000 +# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory +ifeq ($(CONFIG_ARCH_SA1100),y) +textofs-$(CONFIG_SA1111) := 0x00208000 +endif +textofs-$(CONFIG_ARCH_IPQ40XX) := 0x00208000 +textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 +textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 +textofs-$(CONFIG_ARCH_MESON) := 0x00208000 +textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 + +# Machine directory name. This list is sorted alphanumerically +# by CONFIG_* macro name. +machine-$(CONFIG_ARCH_ACTIONS) += actions +machine-$(CONFIG_ARCH_AIROHA) += airoha +machine-$(CONFIG_ARCH_ALPINE) += alpine +machine-$(CONFIG_ARCH_ARTPEC) += artpec +machine-$(CONFIG_ARCH_ASPEED) += aspeed +machine-$(CONFIG_ARCH_AT91) += at91 +machine-$(CONFIG_ARCH_AXXIA) += axxia +machine-$(CONFIG_ARCH_BCM) += bcm +machine-$(CONFIG_ARCH_BERLIN) += berlin +machine-$(CONFIG_ARCH_CLPS711X) += clps711x +machine-$(CONFIG_ARCH_DAVINCI) += davinci +machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor +machine-$(CONFIG_ARCH_DOVE) += dove +machine-$(CONFIG_ARCH_EP93XX) += ep93xx +machine-$(CONFIG_ARCH_EXYNOS) += exynos +machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge +machine-$(CONFIG_ARCH_GEMINI) += gemini +machine-$(CONFIG_ARCH_HIGHBANK) += highbank +machine-$(CONFIG_ARCH_HISI) += hisi +machine-$(CONFIG_ARCH_HPE) += hpe +machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx +machine-$(CONFIG_ARCH_KEYSTONE) += keystone +machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx +machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx +machine-$(CONFIG_ARCH_MESON) += meson +machine-$(CONFIG_ARCH_MMP) += mmp +machine-$(CONFIG_ARCH_MOXART) += moxart +machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 +machine-$(CONFIG_ARCH_MVEBU) += mvebu +machine-$(CONFIG_ARCH_MXC) += imx +machine-$(CONFIG_ARCH_MEDIATEK) += mediatek +machine-$(CONFIG_ARCH_MILBEAUT) += milbeaut +machine-$(CONFIG_ARCH_MXS) += mxs +machine-$(CONFIG_ARCH_MSTARV7) += mstar +machine-$(CONFIG_ARCH_NOMADIK) += nomadik +machine-$(CONFIG_ARCH_NPCM) += npcm +machine-$(CONFIG_ARCH_NSPIRE) += nspire +machine-$(CONFIG_ARCH_OMAP1) += omap1 +machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 +machine-$(CONFIG_ARCH_ORION5X) += orion5x +machine-$(CONFIG_ARCH_PXA) += pxa +machine-$(CONFIG_ARCH_QCOM) += qcom +machine-$(CONFIG_ARCH_REALTEK) += realtek +machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip +machine-$(CONFIG_ARCH_RPC) += rpc +machine-$(CONFIG_PLAT_SAMSUNG) += s3c +machine-$(CONFIG_ARCH_S5PV210) += s5pv210 +machine-$(CONFIG_ARCH_SA1100) += sa1100 +machine-$(CONFIG_ARCH_RENESAS) += shmobile +machine-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga +machine-$(CONFIG_ARCH_STI) += sti +machine-$(CONFIG_ARCH_STM32) += stm32 +machine-$(CONFIG_ARCH_SUNPLUS) += sunplus +machine-$(CONFIG_ARCH_SUNXI) += sunxi +machine-$(CONFIG_ARCH_TEGRA) += tegra +machine-$(CONFIG_ARCH_U8500) += ux500 +machine-$(CONFIG_ARCH_VT8500) += vt8500 +machine-$(CONFIG_ARCH_ZYNQ) += zynq +machine-$(CONFIG_PLAT_VERSATILE) += versatile +machine-$(CONFIG_PLAT_SPEAR) += spear + +# legacy platforms provide their own mach/*.h headers globally, +# these three are mutually exclusive +machdirs-$(CONFIG_ARCH_FOOTBRIDGE) += arch/arm/mach-footbridge +machdirs-$(CONFIG_ARCH_RPC) += arch/arm/mach-rpc +machdirs-$(CONFIG_ARCH_SA1100) += arch/arm/mach-sa1100 +KBUILD_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 cleaning +core- += $(patsubst %,arch/arm/mach-%/,$(machine-)) + +core-$(CONFIG_PLAT_ORION) += arch/arm/plat-orion/ + +libs-y := arch/arm/lib/ $(libs-y) + +# Default target when executing plain make +boot := arch/arm/boot +ifeq ($(CONFIG_XIP_KERNEL),y) +KBUILD_IMAGE := $(boot)/xipImage +else +KBUILD_IMAGE := $(boot)/zImage +endif + +ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) +prepare: stack_protector_prepare +ifeq ($(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;}'\ + include/generated/asm-offsets.h)) +else +stack_protector_prepare: prepare0 + $(eval SSP_PLUGIN_CFLAGS := \ + -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ + awk '{if ($$2 == "TSK_STACK_CANARY") print $$3;}'\ + include/generated/asm-offsets.h)) + $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) + $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS)) +endif +endif + +all: $(notdir $(KBUILD_IMAGE)) + + +archheaders: + $(Q)$(MAKE) $(build)=arch/arm/tools uapi + +archprepare: + $(Q)$(MAKE) $(build)=arch/arm/tools kapi + +# Convert bzImage to zImage +bzImage: zImage + +BOOT_TARGETS = zImage Image xipImage bootpImage uImage +INSTALL_TARGETS = zinstall uinstall install + +PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) + +bootpImage uImage: zImage +zImage: Image + +$(BOOT_TARGETS): vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + @$(kecho) ' Kernel: $(boot)/$@ is ready' + +$(INSTALL_TARGETS): KBUILD_IMAGE = $(boot)/$(patsubst %install,%Image,$@) +$(INSTALL_TARGETS): + $(call cmd,install) + +PHONY += vdso_install +vdso_install: +ifeq ($(CONFIG_VDSO),y) + $(Q)$(MAKE) $(build)=arch/arm/vdso $@ +endif + +# My testing targets (bypasses dependencies) +bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/bootpImage + +include $(srctree)/scripts/Makefile.defconf +PHONY += multi_v7_lpae_defconfig +multi_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 $$(INSTALL_PATH) and run lilo' + echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso' + echo + echo ' multi_v7_lpae_defconfig - multi_v7_defconfig with CONFIG_ARM_LPAE enabled' +endef |