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-rw-r--r--arch/arm/Makefile337
1 files changed, 337 insertions, 0 deletions
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
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+++ b/arch/arm/Makefile
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+#
+# 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