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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 | # # 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 += $(call cc-option,-fno-dwarf2-cfi-asm) # This should work on most of the modern platforms KBUILD_DEFCONFIG := multi_v7_defconfig # defines filename extension depending memory management type. ifeq ($(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 += $(call cc-option,-fno-ipa-sra) # This selects which instruction set is used. # Note that GCC does not numerically define an architecture version # macro, but instead defines a whole series of macros which makes # testing for a specific architecture or later rather impossible. arch-$(CONFIG_CPU_32v7M) =-D__LINUX_ARM_ARCH__=7 -march=armv7-m arch-$(CONFIG_CPU_32v7) =-D__LINUX_ARM_ARCH__=7 -march=armv7-a arch-$(CONFIG_CPU_32v6) =-D__LINUX_ARM_ARCH__=6 -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) =-D__LINUX_ARM_ARCH__=6 -march=armv6k endif arch-$(CONFIG_CPU_32v5) =-D__LINUX_ARM_ARCH__=5 -march=armv5te arch-$(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=armv3m # Evaluate arch cc-option calls now arch-y := $(arch-y) # This selects how we optimise for the processor. tune-$(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 # Evaluate tune cc-option calls now tune-y := $(tune-y) ifeq ($(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 ($(CONFIG_CC_IS_CLANG),y) CFLAGS_ABI += -meabi gnu endif # Accept old syntax despite ".syntax unified" AFLAGS_NOWARN :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W) ifeq ($(CONFIG_THUMB2_KERNEL),y) CFLAGS_ISA :=-mthumb -Wa,-mimplicit-it=always $(AFLAGS_NOWARN) AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mthumb else CFLAGS_ISA :=$(call cc-option,-marm,) $(AFLAGS_NOWARN) AFLAGS_ISA :=$(CFLAGS_ISA) endif # Need -Uarm for gcc < 3.x 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) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float CHECKFLAGS += -D__arm__ #Default value head-y := arch/arm/kernel/head$(MMUEXT).o # 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 # We don't want the htc bootloader to corrupt kernel during resume textofs-$(CONFIG_PM_H1940) := 0x00108000 # RTD1195 has Boot ROM at start of address space textofs-$(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-$(CONFIG_ARCH_ALPINE) += alpine machine-$(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-$(CONFIG_ARCH_CNS3XXX) += cns3xxx machine-$(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-$(CONFIG_ARCH_INTEGRATOR) += integrator machine-$(CONFIG_ARCH_IOP32X) += iop32x 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-$(CONFIG_ARCH_MPS2) += vexpress machine-$(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-$(CONFIG_ARCH_OXNAS) += oxnas machine-$(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-$(CONFIG_ARCH_RDA) += rda machine-$(CONFIG_ARCH_REALTEK) += realtek machine-$(CONFIG_ARCH_REALVIEW) += realview machine-$(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-$(CONFIG_ARCH_SUNXI) += sunxi machine-$(CONFIG_ARCH_TEGRA) += tegra machine-$(CONFIG_ARCH_U8500) += ux500 machine-$(CONFIG_ARCH_VERSATILE) += versatile machine-$(CONFIG_ARCH_VEXPRESS) += vexpress machine-$(CONFIG_ARCH_VT8500) += vt8500 machine-$(CONFIG_ARCH_ZYNQ) += zynq machine-$(CONFIG_PLAT_SPEAR) += spear # Platform directory name. This list is sorted alphanumerically # by CONFIG_* macro name. plat-$(CONFIG_ARCH_OMAP) += omap plat-$(CONFIG_PLAT_ORION) += orion plat-$(CONFIG_PLAT_PXA) += pxa plat-$(CONFIG_PLAT_VERSATILE) += versatile # The byte offset of the kernel image in RAM from the start of RAM. TEXT_OFFSET := $(textofs-y) # The first directory contains additional information for the boot setup code ifneq ($(machine-y),) MACHINE := arch/arm/mach-$(word 1,$(machine-y))/ else MACHINE := endif ifeq ($(CONFIG_ARCH_MULTIPLATFORM),y) MACHINE := endif machdirs := $(patsubst %,arch/arm/mach-%/,$(machine-y)) platdirs := $(patsubst %,arch/arm/plat-%/,$(sort $(plat-y))) ifneq ($(CONFIG_ARCH_MULTIPLATFORM),y) ifneq ($(CONFIG_ARM_SINGLE_ARMV7M),y) KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs) $(platdirs)) endif endif export TEXT_OFFSET GZFLAGS MMUEXT # If we have a machine-specific directory, then include it in the build. core-y += $(machdirs) $(platdirs) # For cleaning core- += $(patsubst %,arch/arm/mach-%/, $(machine-)) core- += $(patsubst %,arch/arm/plat-%/, $(plat-)) 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 stack_protector_prepare: prepare0 $(eval SSP_PLUGIN_CFLAGS := \ -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \ awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\ include/generated/asm-offsets.h) \ -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\ include/generated/asm-offsets.h)) $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS)) 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) MACHINE=$(MACHINE) $(boot)/$@ @$(kecho) ' Kernel: $(boot)/$@ is ready' $(INSTALL_TARGETS): $(CONFIG_SHELL) $(srctree)/$(boot)/install.sh "$(KERNELRELEASE)" \ $(boot)/$(patsubst %install,%Image,$@) System.map "$(INSTALL_PATH)" PHONY += vdso_install vdso_install: ifeq ($(CONFIG_VDSO),y) $(Q)$(MAKE) $(build)=arch/arm/vdso $@ endif # 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) $(boot)/bootpImage define archhelp echo '* zImage - Compressed kernel image (arch/$(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' endef |