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342 lines
12 KiB
342 lines
12 KiB
# |
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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 := --no-undefined -X --pic-veneer -z norelro |
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ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) |
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LDFLAGS_vmlinux += --be8 |
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KBUILD_LDFLAGS_MODULE += --be8 |
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endif |
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GZFLAGS :=-9 |
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#KBUILD_CFLAGS +=-pipe |
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# Never generate .eh_frame |
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KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
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# This should work on most of the modern platforms |
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KBUILD_DEFCONFIG := multi_v7_defconfig |
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# defines filename extension depending memory management type. |
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ifeq ($(CONFIG_MMU),) |
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MMUEXT := -nommu |
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KBUILD_CFLAGS += $(call cc-option,-mno-unaligned-access) |
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endif |
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ifeq ($(CONFIG_FRAME_POINTER),y) |
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KBUILD_CFLAGS +=-fno-omit-frame-pointer |
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ifeq ($(CONFIG_CC_IS_GCC),y) |
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KBUILD_CFLAGS += -mapcs -mno-sched-prolog |
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endif |
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endif |
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ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) |
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KBUILD_CPPFLAGS += -mbig-endian |
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CHECKFLAGS += -D__ARMEB__ |
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KBUILD_LDFLAGS += -EB |
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else |
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KBUILD_CPPFLAGS += -mlittle-endian |
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CHECKFLAGS += -D__ARMEL__ |
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KBUILD_LDFLAGS += -EL |
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endif |
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# |
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# The Scalar Replacement of Aggregates (SRA) optimization pass in GCC 4.9 and |
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# later may result in code being generated that handles signed short and signed |
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# char struct members incorrectly. So disable it. |
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# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65932) |
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# |
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KBUILD_CFLAGS += $(call cc-option,-fno-ipa-sra) |
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# This selects which instruction set is used. |
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# Note that GCC does not numerically define an architecture version |
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# macro, but instead defines a whole series of macros which makes |
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# testing for a specific architecture or later rather impossible. |
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arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m -Wa,-march=armv7-m |
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arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 $(call cc-option,-march=armv7-a,-march=armv5t -Wa$(comma)-march=armv7-a) |
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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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# Only override the compiler option if ARMv6. The ARMv6K extensions are |
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# always available in ARMv7 |
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ifeq ($(CONFIG_CPU_32v6),y) |
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arch-$(CONFIG_CPU_32v6K) =-D__LINUX_ARM_ARCH__=6 $(call cc-option,-march=armv6k,-march=armv5t -Wa$(comma)-march=armv6k) |
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endif |
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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=armv3m |
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# Evaluate arch cc-option calls now |
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arch-y := $(arch-y) |
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# This selects how we optimise for the processor. |
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tune-$(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-$(CONFIG_CPU_ARM946E) =$(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-$(CONFIG_CPU_FA526) =-mtune=arm9tdmi |
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tune-$(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_FEROCEON) =$(call cc-option,-mtune=marvell-f,-mtune=xscale) |
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tune-$(CONFIG_CPU_V6) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) |
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tune-$(CONFIG_CPU_V6K) =$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm) |
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# Evaluate tune cc-option calls now |
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tune-y := $(tune-y) |
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ifeq ($(CONFIG_AEABI),y) |
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CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp |
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else |
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CFLAGS_ABI :=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,) |
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endif |
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ifeq ($(CONFIG_ARM_UNWIND),y) |
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CFLAGS_ABI +=-funwind-tables |
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endif |
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ifeq ($(CONFIG_CC_IS_CLANG),y) |
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CFLAGS_ABI += -meabi gnu |
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endif |
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# Accept old syntax despite ".syntax unified" |
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AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) |
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ifeq ($(CONFIG_THUMB2_KERNEL),y) |
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CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN) |
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AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb |
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else |
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CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN) |
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AFLAGS_ISA :=$(CFLAGS_ISA) |
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endif |
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# Need -Uarm for gcc < 3.x |
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KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm |
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KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float |
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CHECKFLAGS += -D__arm__ |
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#Default value |
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head-y := arch/arm/kernel/head$(MMUEXT).o |
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# Text offset. This list is sorted numerically by address in order to |
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# provide a means to avoid/resolve conflicts in multi-arch kernels. |
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# Note: the 32kB below this value is reserved for use by the kernel |
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# during boot, and this offset is critical to the functioning of |
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# kexec-tools. |
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textofs-y := 0x00008000 |
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# We don't want the htc bootloader to corrupt kernel during resume |
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textofs-$(CONFIG_PM_H1940) := 0x00108000 |
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# RTD1195 has Boot ROM at start of address space |
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textofs-$(CONFIG_ARCH_REALTEK) := 0x00108000 |
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# SA1111 DMA bug: we don't want the kernel to live in precious DMA-able memory |
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ifeq ($(CONFIG_ARCH_SA1100),y) |
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textofs-$(CONFIG_SA1111) := 0x00208000 |
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endif |
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textofs-$(CONFIG_ARCH_IPQ40XX) := 0x00208000 |
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textofs-$(CONFIG_ARCH_MSM8X60) := 0x00208000 |
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textofs-$(CONFIG_ARCH_MSM8960) := 0x00208000 |
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textofs-$(CONFIG_ARCH_MESON) := 0x00208000 |
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textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 |
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# Machine directory name. This list is sorted alphanumerically |
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# by CONFIG_* macro name. |
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machine-$(CONFIG_ARCH_ACTIONS) += actions |
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machine-$(CONFIG_ARCH_ALPINE) += alpine |
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machine-$(CONFIG_ARCH_ARTPEC) += artpec |
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machine-$(CONFIG_ARCH_ASPEED) += aspeed |
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machine-$(CONFIG_ARCH_AT91) += at91 |
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machine-$(CONFIG_ARCH_AXXIA) += axxia |
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machine-$(CONFIG_ARCH_BCM) += bcm |
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machine-$(CONFIG_ARCH_BERLIN) += berlin |
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machine-$(CONFIG_ARCH_CLPS711X) += clps711x |
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machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx |
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machine-$(CONFIG_ARCH_DAVINCI) += davinci |
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machine-$(CONFIG_ARCH_DIGICOLOR) += digicolor |
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machine-$(CONFIG_ARCH_DOVE) += dove |
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machine-$(CONFIG_ARCH_EP93XX) += ep93xx |
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machine-$(CONFIG_ARCH_EXYNOS) += exynos |
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machine-$(CONFIG_ARCH_FOOTBRIDGE) += footbridge |
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machine-$(CONFIG_ARCH_GEMINI) += gemini |
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machine-$(CONFIG_ARCH_HIGHBANK) += highbank |
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machine-$(CONFIG_ARCH_HISI) += hisi |
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machine-$(CONFIG_ARCH_INTEGRATOR) += integrator |
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machine-$(CONFIG_ARCH_IOP32X) += iop32x |
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machine-$(CONFIG_ARCH_IXP4XX) += ixp4xx |
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machine-$(CONFIG_ARCH_KEYSTONE) += keystone |
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machine-$(CONFIG_ARCH_LPC18XX) += lpc18xx |
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machine-$(CONFIG_ARCH_LPC32XX) += lpc32xx |
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machine-$(CONFIG_ARCH_MESON) += meson |
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machine-$(CONFIG_ARCH_MMP) += mmp |
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machine-$(CONFIG_ARCH_MPS2) += vexpress |
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machine-$(CONFIG_ARCH_MOXART) += moxart |
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machine-$(CONFIG_ARCH_MV78XX0) += mv78xx0 |
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machine-$(CONFIG_ARCH_MVEBU) += mvebu |
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machine-$(CONFIG_ARCH_MXC) += imx |
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machine-$(CONFIG_ARCH_MEDIATEK) += mediatek |
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machine-$(CONFIG_ARCH_MILBEAUT) += milbeaut |
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machine-$(CONFIG_ARCH_MXS) += mxs |
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machine-$(CONFIG_ARCH_MSTARV7) += mstar |
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machine-$(CONFIG_ARCH_NOMADIK) += nomadik |
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machine-$(CONFIG_ARCH_NPCM) += npcm |
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machine-$(CONFIG_ARCH_NSPIRE) += nspire |
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machine-$(CONFIG_ARCH_OXNAS) += oxnas |
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machine-$(CONFIG_ARCH_OMAP1) += omap1 |
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machine-$(CONFIG_ARCH_OMAP2PLUS) += omap2 |
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machine-$(CONFIG_ARCH_ORION5X) += orion5x |
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machine-$(CONFIG_ARCH_PXA) += pxa |
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machine-$(CONFIG_ARCH_QCOM) += qcom |
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machine-$(CONFIG_ARCH_RDA) += rda |
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machine-$(CONFIG_ARCH_REALTEK) += realtek |
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machine-$(CONFIG_ARCH_REALVIEW) += realview |
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machine-$(CONFIG_ARCH_ROCKCHIP) += rockchip |
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machine-$(CONFIG_ARCH_RPC) += rpc |
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machine-$(CONFIG_PLAT_SAMSUNG) += s3c |
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machine-$(CONFIG_ARCH_S5PV210) += s5pv210 |
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machine-$(CONFIG_ARCH_SA1100) += sa1100 |
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machine-$(CONFIG_ARCH_RENESAS) += shmobile |
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machine-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga |
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machine-$(CONFIG_ARCH_STI) += sti |
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machine-$(CONFIG_ARCH_STM32) += stm32 |
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machine-$(CONFIG_ARCH_SUNXI) += sunxi |
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machine-$(CONFIG_ARCH_TEGRA) += tegra |
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machine-$(CONFIG_ARCH_U8500) += ux500 |
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machine-$(CONFIG_ARCH_VERSATILE) += versatile |
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machine-$(CONFIG_ARCH_VEXPRESS) += vexpress |
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machine-$(CONFIG_ARCH_VT8500) += vt8500 |
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machine-$(CONFIG_ARCH_ZYNQ) += zynq |
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machine-$(CONFIG_PLAT_SPEAR) += spear |
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# Platform directory name. This list is sorted alphanumerically |
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# by CONFIG_* macro name. |
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plat-$(CONFIG_ARCH_OMAP) += omap |
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plat-$(CONFIG_PLAT_ORION) += orion |
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plat-$(CONFIG_PLAT_PXA) += pxa |
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plat-$(CONFIG_PLAT_VERSATILE) += versatile |
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# The byte offset of the kernel image in RAM from the start of RAM. |
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TEXT_OFFSET := $(textofs-y) |
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# The first directory contains additional information for the boot setup code |
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ifneq ($(machine-y),) |
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MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ |
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else |
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MACHINE := |
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endif |
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ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) |
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MACHINE := |
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endif |
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machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) |
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platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) |
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ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) |
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ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y) |
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KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) |
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endif |
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endif |
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export TEXT_OFFSET GZFLAGS MMUEXT |
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# If we have a machine-specific directory, then include it in the build. |
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core-y += $(machdirs) $(platdirs) |
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# For cleaning |
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core- += $(patsubst %,arch/arm/mach-%/, $(machine-)) |
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core- += $(patsubst %,arch/arm/plat-%/, $(plat-)) |
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libs-y := arch/arm/lib/ $(libs-y) |
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# Default target when executing plain make |
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boot := arch/arm/boot |
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ifeq ($(CONFIG_XIP_KERNEL),y) |
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KBUILD_IMAGE := $(boot)/xipImage |
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else |
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KBUILD_IMAGE := $(boot)/zImage |
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endif |
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ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) |
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prepare: stack_protector_prepare |
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stack_protector_prepare: prepare0 |
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$(eval SSP_PLUGIN_CFLAGS := \ |
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-fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \ |
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awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\ |
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include/generated/asm-offsets.h) \ |
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-fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ |
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awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\ |
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include/generated/asm-offsets.h)) |
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$(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) |
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$(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS)) |
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endif |
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all: $(notdir $(KBUILD_IMAGE)) |
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archheaders: |
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$(Q)$(MAKE) $(build)=arch/arm/tools uapi |
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archprepare: |
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$(Q)$(MAKE) $(build)=arch/arm/tools kapi |
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# Convert bzImage to zImage |
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bzImage: zImage |
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BOOT_TARGETS = zImage Image xipImage bootpImage uImage |
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INSTALL_TARGETS = zinstall uinstall install |
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PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS) |
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bootpImage uImage: zImage |
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zImage: Image |
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$(BOOT_TARGETS): vmlinux |
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@ |
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@$(kecho) ' Kernel: $(boot)/$@ is ready' |
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$(INSTALL_TARGETS): |
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$(CONFIG_SHELL) $(srctree)/$(boot)/install.sh "$(KERNELRELEASE)" \ |
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$(boot)/$(patsubst %install,%Image,$@) System.map "$(INSTALL_PATH)" |
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PHONY += vdso_install |
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vdso_install: |
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ifeq ($(CONFIG_VDSO),y) |
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$(Q)$(MAKE) $(build)=arch/arm/vdso $@ |
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endif |
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# We use MRPROPER_FILES and CLEAN_FILES now |
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archclean: |
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$(Q)$(MAKE) $(clean)=$(boot) |
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# My testing targets (bypasses dependencies) |
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bp:; $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage |
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define archhelp |
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echo '* zImage - Compressed kernel image (arch/$(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 ' uImage - U-Boot wrapped zImage' |
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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 ' uinstall - Install U-Boot wrapped 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 $$(INSTALL_PATH) and run lilo' |
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echo ' vdso_install - Install unstripped vdso.so to $$(INSTALL_MOD_PATH)/vdso' |
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endef
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