1 # 1 # 2 # arch/arm/Makefile !! 2 # i386/Makefile 3 # 3 # 4 # This file is included by the global makefile 4 # This file is included by the global makefile so that you can add your own 5 # architecture-specific flags and dependencies !! 5 # architecture-specific flags and dependencies. Remember to do have actions >> 6 # for "archclean" and "archdep" for cleaning up and making dependencies for >> 7 # this architecture 6 # 8 # 7 # This file is subject to the terms and condit 9 # This file is subject to the terms and conditions of the GNU General Public 8 # License. See the file "COPYING" in the main 10 # License. See the file "COPYING" in the main directory of this archive 9 # for more details. 11 # for more details. 10 # 12 # 11 # Copyright (C) 1995-2001 by Russell King !! 13 # Copyright (C) 1994 by Linus Torvalds >> 14 # >> 15 # 19990713 Artur Skawina <skawina@geocities.com> >> 16 # Added '-march' and '-mpreferred-stack-boundary' support >> 17 # >> 18 >> 19 LD=$(CROSS_COMPILE)ld -m elf_i386 >> 20 OBJCOPY=$(CROSS_COMPILE)objcopy -O binary -R .note -R .comment -S >> 21 LDFLAGS=-e stext >> 22 LINKFLAGS =-T $(TOPDIR)/arch/i386/vmlinux.lds $(LDFLAGS) >> 23 >> 24 CFLAGS += -pipe 12 25 13 LDFLAGS_vmlinux := --no-undefined -X --pic-ven !! 26 # prevent gcc from keeping the stack 16 byte aligned 14 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) !! 27 CFLAGS += $(call check_gcc,-mpreferred-stack-boundary=2,) 15 LDFLAGS_vmlinux += --be8 !! 28 16 KBUILD_LDFLAGS_MODULE += --be8 !! 29 ifdef CONFIG_M386 >> 30 CFLAGS += -march=i386 17 endif 31 endif 18 32 19 GZFLAGS :=-9 !! 33 ifdef CONFIG_M486 20 #KBUILD_CFLAGS +=-pipe !! 34 CFLAGS += -march=i486 >> 35 endif 21 36 22 # Never generate .eh_frame !! 37 ifdef CONFIG_M586 23 KBUILD_CFLAGS += $(call cc-option,-fno-dwarf !! 38 CFLAGS += -march=i586 >> 39 endif 24 40 25 # Disable FDPIC ABI !! 41 ifdef CONFIG_M586TSC 26 KBUILD_CFLAGS += $(call cc-option,-mno-fdpic !! 42 CFLAGS += -march=i586 >> 43 endif 27 44 28 # This should work on most of the modern platf !! 45 ifdef CONFIG_M586MMX 29 KBUILD_DEFCONFIG := multi_v7_defconfig !! 46 CFLAGS += -march=i586 >> 47 endif 30 48 31 # defines filename extension depending memory !! 49 ifdef CONFIG_M686 32 ifeq ($(CONFIG_MMU),) !! 50 CFLAGS += -march=i686 33 MMUEXT := -nommu << 34 KBUILD_CFLAGS += $(call cc-option,-mno-unali << 35 endif 51 endif 36 52 37 ifeq ($(CONFIG_FRAME_POINTER),y) !! 53 ifdef CONFIG_MPENTIUMIII 38 KBUILD_CFLAGS +=-fno-omit-frame-pointer !! 54 CFLAGS += -march=i686 39 ifeq ($(CONFIG_CC_IS_GCC),y) << 40 KBUILD_CFLAGS += -mapcs -mno-sched-prolog << 41 endif 55 endif >> 56 >> 57 ifdef CONFIG_MPENTIUM4 >> 58 CFLAGS += -march=i686 42 endif 59 endif 43 60 44 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y) !! 61 ifdef CONFIG_MK6 45 KBUILD_CPPFLAGS += -mbig-endian !! 62 CFLAGS += $(call check_gcc,-march=k6,-march=i586) 46 CHECKFLAGS += -D__ARMEB__ << 47 KBUILD_LDFLAGS += -EB << 48 else << 49 KBUILD_CPPFLAGS += -mlittle-endian << 50 CHECKFLAGS += -D__ARMEL__ << 51 KBUILD_LDFLAGS += -EL << 52 endif 63 endif 53 64 54 # !! 65 ifdef CONFIG_MK7 55 # The Scalar Replacement of Aggregates (SRA) o !! 66 CFLAGS += $(call check_gcc,-march=athlon,-march=i686 -malign-functions=4) 56 # later may result in code being generated tha !! 67 endif 57 # char struct members incorrectly. So disable !! 68 58 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?i !! 69 ifdef CONFIG_MCRUSOE 59 # !! 70 CFLAGS += -march=i686 60 KBUILD_CFLAGS += $(call cc-option,-fno-ipa-s !! 71 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0) >> 72 endif >> 73 >> 74 ifdef CONFIG_MGEODE_LX >> 75 CFLAGS += -march=i686 >> 76 endif >> 77 >> 78 ifdef CONFIG_MWINCHIPC6 >> 79 CFLAGS += -march=i586 >> 80 endif >> 81 >> 82 ifdef CONFIG_MWINCHIP2 >> 83 CFLAGS += -march=i586 >> 84 endif >> 85 >> 86 ifdef CONFIG_MWINCHIP3D >> 87 CFLAGS += -march=i586 >> 88 endif >> 89 >> 90 ifdef CONFIG_MCYRIXIII >> 91 CFLAGS += $(call check_gcc,-march=c3,-march=i486) >> 92 CFLAGS += $(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,-malign-functions=0 -malign-jumps=0 -malign-loops=0) >> 93 endif >> 94 >> 95 ifdef CONFIG_MVIAC3_2 >> 96 CFLAGS += $(call check_gcc,-march=c3-2,-march=i686) >> 97 endif >> 98 >> 99 # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use >> 100 # a lot more stack due to the lack of sharing of stacklots. >> 101 # CFLAGS += $(call if_gcc4,,$(call check_gcc,-fno-unit-at-a-time,)) >> 102 # Disable unit-at-a-time on gcc >= 4 too, because it removes seemingly unused >> 103 # variables which are indeed module params. >> 104 CFLAGS += $(call check_gcc,-fno-unit-at-a-time,) >> 105 >> 106 HEAD := arch/i386/kernel/head.o arch/i386/kernel/init_task.o >> 107 >> 108 SUBDIRS += arch/i386/kernel arch/i386/mm arch/i386/lib >> 109 >> 110 CORE_FILES := arch/i386/kernel/kernel.o arch/i386/mm/mm.o $(CORE_FILES) >> 111 LIBS := $(TOPDIR)/arch/i386/lib/lib.a $(LIBS) $(TOPDIR)/arch/i386/lib/lib.a >> 112 >> 113 ifdef CONFIG_MATH_EMULATION >> 114 SUBDIRS += arch/i386/math-emu >> 115 DRIVERS += arch/i386/math-emu/math.o >> 116 endif >> 117 >> 118 arch/i386/kernel: dummy >> 119 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/kernel >> 120 >> 121 arch/i386/mm: dummy >> 122 $(MAKE) linuxsubdirs SUBDIRS=arch/i386/mm >> 123 >> 124 MAKEBOOT = $(MAKE) -C arch/$(ARCH)/boot >> 125 >> 126 vmlinux: arch/i386/vmlinux.lds >> 127 >> 128 FORCE: ; >> 129 >> 130 .PHONY: zImage bzImage compressed zlilo bzlilo zdisk bzdisk install \ >> 131 clean archclean archmrproper archdep >> 132 >> 133 zImage: vmlinux >> 134 @$(MAKEBOOT) zImage >> 135 >> 136 bzImage: vmlinux >> 137 @$(MAKEBOOT) bzImage >> 138 >> 139 compressed: zImage >> 140 >> 141 zlilo: vmlinux >> 142 @$(MAKEBOOT) BOOTIMAGE=zImage zlilo >> 143 >> 144 tmp: >> 145 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo >> 146 bzlilo: vmlinux >> 147 @$(MAKEBOOT) BOOTIMAGE=bzImage zlilo >> 148 >> 149 zdisk: vmlinux >> 150 @$(MAKEBOOT) BOOTIMAGE=zImage zdisk >> 151 >> 152 bzdisk: vmlinux >> 153 @$(MAKEBOOT) BOOTIMAGE=bzImage zdisk >> 154 >> 155 install: vmlinux >> 156 @$(MAKEBOOT) BOOTIMAGE=bzImage install >> 157 >> 158 archclean: >> 159 @$(MAKEBOOT) clean >> 160 >> 161 archmrproper: 61 162 62 # This selects which instruction set is used. !! 163 archdep: 63 arch-$(CONFIG_CPU_32v7M) :=-march=armv7 !! 164 @$(MAKEBOOT) dep 64 arch-$(CONFIG_CPU_32v7) :=-march=armv7 << 65 arch-$(CONFIG_CPU_32v6) :=-march=armv6 << 66 # Only override the compiler option if ARMv6. << 67 # always available in ARMv7 << 68 ifeq ($(CONFIG_CPU_32v6),y) << 69 arch-$(CONFIG_CPU_32v6K) :=-march=armv6 << 70 endif << 71 arch-$(CONFIG_CPU_32v5) :=-march=armv5 << 72 arch-$(CONFIG_CPU_32v4T) :=-march=armv4 << 73 arch-$(CONFIG_CPU_32v4) :=-march=armv4 << 74 arch-$(CONFIG_CPU_32v3) :=-march=armv3 << 75 << 76 # Note that GCC does not numerically define an << 77 # macro, but instead defines a whole series of << 78 # testing for a specific architecture or later << 79 cpp-$(CONFIG_CPU_32v7M) :=-D__LINUX_AR << 80 cpp-$(CONFIG_CPU_32v7) :=-D__LINUX_AR << 81 cpp-$(CONFIG_CPU_32v6) :=-D__LINUX_AR << 82 # Only override the compiler option if ARMv6. << 83 # always available in ARMv7 << 84 ifeq ($(CONFIG_CPU_32v6),y) << 85 cpp-$(CONFIG_CPU_32v6K) :=-D__LINUX_AR << 86 endif << 87 cpp-$(CONFIG_CPU_32v5) :=-D__LINUX_AR << 88 cpp-$(CONFIG_CPU_32v4T) :=-D__LINUX_AR << 89 cpp-$(CONFIG_CPU_32v4) :=-D__LINUX_AR << 90 cpp-$(CONFIG_CPU_32v3) :=-D__LINUX_AR << 91 << 92 # This selects how we optimise for the process << 93 tune-$(CONFIG_CPU_ARM7TDMI) :=-mtune=arm7t << 94 tune-$(CONFIG_CPU_ARM720T) :=-mtune=arm7t << 95 tune-$(CONFIG_CPU_ARM740T) :=-mtune=arm7t << 96 tune-$(CONFIG_CPU_ARM9TDMI) :=-mtune=arm9t << 97 tune-$(CONFIG_CPU_ARM940T) :=-mtune=arm9t << 98 tune-$(CONFIG_CPU_ARM946E) :=-mtune=arm9e << 99 tune-$(CONFIG_CPU_ARM920T) :=-mtune=arm9t << 100 tune-$(CONFIG_CPU_ARM922T) :=-mtune=arm9t << 101 tune-$(CONFIG_CPU_ARM925T) :=-mtune=arm9t << 102 tune-$(CONFIG_CPU_ARM926T) :=-mtune=arm9t << 103 tune-$(CONFIG_CPU_FA526) :=-mtune=arm9t << 104 tune-$(CONFIG_CPU_SA110) :=-mtune=stron << 105 tune-$(CONFIG_CPU_SA1100) :=-mtune=stron << 106 tune-$(CONFIG_CPU_XSCALE) :=-mtune=xscal << 107 tune-$(CONFIG_CPU_XSC3) :=-mtune=xscal << 108 tune-$(CONFIG_CPU_FEROCEON) :=-mtune=xscal << 109 tune-$(CONFIG_CPU_V6) :=-mtune=arm11 << 110 tune-$(CONFIG_CPU_V6K) :=-mtune=arm11 << 111 << 112 ifeq ($(CONFIG_AEABI),y) << 113 CFLAGS_ABI :=-mabi=aapcs-linux -mfpu=vfp << 114 else << 115 CFLAGS_ABI :=$(call cc-option,-mapcs-32,- << 116 endif << 117 << 118 ifeq ($(CONFIG_ARM_UNWIND),y) << 119 CFLAGS_ABI +=-funwind-tables << 120 endif << 121 << 122 ifeq ($(CONFIG_CC_IS_CLANG),y) << 123 CFLAGS_ABI += -meabi gnu << 124 endif << 125 << 126 ifeq ($(CONFIG_CURRENT_POINTER_IN_TPIDRURO),y) << 127 KBUILD_CFLAGS += -mtp=cp15 << 128 endif << 129 << 130 # Accept old syntax despite ".syntax unified" << 131 AFLAGS_NOWARN :=$(call as-option,-Wa$(comma) << 132 << 133 # The GCC option -ffreestanding is required in << 134 # ARM/NEON intrinsics in a non C99-compliant e << 135 CC_FLAGS_FPU := -ffreestanding << 136 # Enable <arm_neon.h> << 137 CC_FLAGS_FPU += -isystem $(shell $(CC) -pri << 138 CC_FLAGS_FPU += -march=armv7-a -mfloat-abi= << 139 << 140 ifeq ($(CONFIG_THUMB2_KERNEL),y) << 141 CFLAGS_ISA :=-Wa,-mimplicit-it=always $(A << 142 AFLAGS_ISA :=$(CFLAGS_ISA) -Wa$(comma)-mt << 143 CFLAGS_ISA +=-mthumb << 144 else << 145 CFLAGS_ISA :=$(call cc-option,-marm,) $(A << 146 AFLAGS_ISA :=$(CFLAGS_ISA) << 147 endif << 148 << 149 # Need -Uarm for gcc < 3.x << 150 KBUILD_CPPFLAGS +=$(cpp-y) << 151 KBUILD_CFLAGS +=$(CFLAGS_ABI) $(CFLAGS_ISA) << 152 KBUILD_AFLAGS +=$(CFLAGS_ABI) $(AFLAGS_ISA) << 153 << 154 CHECKFLAGS += -D__arm__ << 155 << 156 # Text offset. This list is sorted numerically << 157 # provide a means to avoid/resolve conflicts i << 158 # Note: the 32kB below this value is reserved << 159 # during boot, and this offset is critical to << 160 # kexec-tools. << 161 textofs-y := 0x00008000 << 162 # RTD1195 has Boot ROM at start of address spa << 163 textofs-$(CONFIG_ARCH_REALTEK) := 0x00108000 << 164 # SA1111 DMA bug: we don't want the kernel to << 165 ifeq ($(CONFIG_ARCH_SA1100),y) << 166 textofs-$(CONFIG_SA1111) := 0x00208000 << 167 endif << 168 textofs-$(CONFIG_ARCH_QCOM_RESERVE_SMEM) := 0x << 169 textofs-$(CONFIG_ARCH_MESON) := 0x00208000 << 170 textofs-$(CONFIG_ARCH_AXXIA) := 0x00308000 << 171 << 172 # Machine directory name. This list is sorted << 173 # by CONFIG_* macro name. << 174 machine-$(CONFIG_ARCH_ACTIONS) += act << 175 machine-$(CONFIG_ARCH_ALPINE) += alp << 176 machine-$(CONFIG_ARCH_ARTPEC) += art << 177 machine-$(CONFIG_ARCH_ASPEED) += asp << 178 machine-$(CONFIG_ARCH_AT91) += at9 << 179 machine-$(CONFIG_ARCH_AXXIA) += axx << 180 machine-$(CONFIG_ARCH_BCM) += bcm << 181 machine-$(CONFIG_ARCH_BERLIN) += ber << 182 machine-$(CONFIG_ARCH_CLPS711X) += clp << 183 machine-$(CONFIG_ARCH_DAVINCI) += dav << 184 machine-$(CONFIG_ARCH_DIGICOLOR) += dig << 185 machine-$(CONFIG_ARCH_DOVE) += dov << 186 machine-$(CONFIG_ARCH_EXYNOS) += exy << 187 machine-$(CONFIG_ARCH_FOOTBRIDGE) += foo << 188 machine-$(CONFIG_ARCH_GEMINI) += gem << 189 machine-$(CONFIG_ARCH_HIGHBANK) += hig << 190 machine-$(CONFIG_ARCH_HISI) += his << 191 machine-$(CONFIG_ARCH_HPE) += hpe << 192 machine-$(CONFIG_ARCH_IXP4XX) += ixp << 193 machine-$(CONFIG_ARCH_KEYSTONE) += key << 194 machine-$(CONFIG_ARCH_LPC18XX) += lpc << 195 machine-$(CONFIG_ARCH_LPC32XX) += lpc << 196 machine-$(CONFIG_ARCH_MESON) += mes << 197 machine-$(CONFIG_ARCH_MMP) += mmp << 198 machine-$(CONFIG_ARCH_MV78XX0) += mv7 << 199 machine-$(CONFIG_ARCH_MVEBU) += mve << 200 machine-$(CONFIG_ARCH_MXC) += imx << 201 machine-$(CONFIG_ARCH_MEDIATEK) += med << 202 machine-$(CONFIG_ARCH_MILBEAUT) += mil << 203 machine-$(CONFIG_ARCH_MXS) += mxs << 204 machine-$(CONFIG_ARCH_MSTARV7) += mst << 205 machine-$(CONFIG_ARCH_NOMADIK) += nom << 206 machine-$(CONFIG_ARCH_NPCM) += npc << 207 machine-$(CONFIG_ARCH_OMAP1) += oma << 208 machine-$(CONFIG_ARCH_OMAP2PLUS) += oma << 209 machine-$(CONFIG_ARCH_ORION5X) += ori << 210 machine-$(CONFIG_ARCH_PXA) += pxa << 211 machine-$(CONFIG_ARCH_QCOM) += qco << 212 machine-$(CONFIG_ARCH_REALTEK) += rea << 213 machine-$(CONFIG_ARCH_ROCKCHIP) += roc << 214 machine-$(CONFIG_ARCH_RPC) += rpc << 215 machine-$(CONFIG_PLAT_SAMSUNG) += s3c << 216 machine-$(CONFIG_ARCH_S5PV210) += s5p << 217 machine-$(CONFIG_ARCH_SA1100) += sa1 << 218 machine-$(CONFIG_ARCH_RENESAS) += shm << 219 machine-$(CONFIG_ARCH_INTEL_SOCFPGA) += soc << 220 machine-$(CONFIG_ARCH_STI) += sti << 221 machine-$(CONFIG_ARCH_STM32) += stm << 222 machine-$(CONFIG_ARCH_SUNXI) += sun << 223 machine-$(CONFIG_ARCH_TEGRA) += teg << 224 machine-$(CONFIG_ARCH_U8500) += ux5 << 225 machine-$(CONFIG_ARCH_VT8500) += vt8 << 226 machine-$(CONFIG_ARCH_ZYNQ) += zyn << 227 machine-$(CONFIG_PLAT_VERSATILE) += ver << 228 machine-$(CONFIG_PLAT_SPEAR) += spe << 229 << 230 # legacy platforms provide their own mach/*.h << 231 # these three are mutually exclusive << 232 machdirs-$(CONFIG_ARCH_FOOTBRIDGE) += arc << 233 machdirs-$(CONFIG_ARCH_RPC) += arc << 234 machdirs-$(CONFIG_ARCH_SA1100) += arc << 235 KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/% << 236 << 237 # The byte offset of the kernel image in RAM f << 238 TEXT_OFFSET := $(textofs-y) << 239 << 240 export TEXT_OFFSET GZFLAGS MMUEXT << 241 << 242 # If we have a machine-specific directory, the << 243 core-y += $(patsubst << 244 # For cleaning << 245 core- += $(patsubst << 246 << 247 core-$(CONFIG_PLAT_ORION) += arch/arm/pl << 248 << 249 libs-y := arch/arm/li << 250 << 251 # Default target when executing plain make << 252 boot := arch/arm/boot << 253 ifeq ($(CONFIG_XIP_KERNEL),y) << 254 KBUILD_IMAGE := $(boot)/xipImage << 255 else << 256 KBUILD_IMAGE := $(boot)/zImage << 257 endif << 258 << 259 ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) << 260 prepare: stack_protector_prepare << 261 ifeq ($(CONFIG_CC_HAVE_STACKPROTECTOR_TLS),y) << 262 stack_protector_prepare: prepare0 << 263 $(eval KBUILD_CFLAGS += \ << 264 -mstack-protector-guard=tls \ << 265 -mstack-protector-guard-offset << 266 awk '{if ($$2 == "TSK_ << 267 include/genera << 268 else << 269 stack_protector_prepare: prepare0 << 270 $(eval SSP_PLUGIN_CFLAGS := \ << 271 -fplugin-arg-arm_ssp_per_task_ << 272 awk '{if ($$2 == "TSK_ << 273 include/genera << 274 $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_C << 275 $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLU << 276 endif << 277 endif << 278 << 279 all: $(notdir $(KBUILD_IMAGE)) << 280 << 281 << 282 archheaders: << 283 $(Q)$(MAKE) $(build)=arch/arm/tools ua << 284 << 285 archprepare: << 286 $(Q)$(MAKE) $(build)=arch/arm/tools ka << 287 << 288 # Convert bzImage to zImage << 289 bzImage: zImage << 290 << 291 BOOT_TARGETS = zImage Image xipImage bootpI << 292 INSTALL_TARGETS = zinstall uinstall install << 293 << 294 PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TAR << 295 << 296 bootpImage uImage: zImage << 297 zImage: Image << 298 << 299 $(BOOT_TARGETS): vmlinux << 300 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$ << 301 @$(kecho) ' Kernel: $(boot)/$@ is rea << 302 << 303 $(INSTALL_TARGETS): KBUILD_IMAGE = $(boot)/$(p << 304 $(INSTALL_TARGETS): << 305 $(call cmd,install) << 306 << 307 vdso-install-$(CONFIG_VDSO) += arch/arm/vdso/v << 308 << 309 # My testing targets (bypasses dependencies) << 310 bp:; $(Q)$(MAKE) $(build)=$(boot) $(boot)/b << 311 << 312 include $(srctree)/scripts/Makefile.defconf << 313 PHONY += multi_v7_lpae_defconfig << 314 multi_v7_lpae_defconfig: << 315 $(call merge_into_defconfig,multi_v7_d << 316 << 317 define archhelp << 318 echo '* zImage - Compressed kernel i << 319 echo ' Image - Uncompressed kernel << 320 echo '* xipImage - XIP kernel image, i << 321 echo ' uImage - U-Boot wrapped zIma << 322 echo ' bootpImage - Combined zImage and << 323 echo ' (supply initrd imag << 324 echo ' install - Install uncompresse << 325 echo ' zinstall - Install compressed << 326 echo ' uinstall - Install U-Boot wrap << 327 echo ' Install using (your << 328 echo ' (distribution) /sbi << 329 echo ' install to $$(INSTA << 330 echo << 331 echo ' multi_v7_lpae_defconfig - multi << 332 endef <<
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