Linux/arch/x86/Makefile

Version: ~ [ linux-6.12-rc7 ] ~ [ linux-6.11.7 ] ~ [ linux-6.10.14 ] ~ [ linux-6.9.12 ] ~ [ linux-6.8.12 ] ~ [ linux-6.7.12 ] ~ [ linux-6.6.60 ] ~ [ linux-6.5.13 ] ~ [ linux-6.4.16 ] ~ [ linux-6.3.13 ] ~ [ linux-6.2.16 ] ~ [ linux-6.1.116 ] ~ [ linux-6.0.19 ] ~ [ linux-5.19.17 ] ~ [ linux-5.18.19 ] ~ [ linux-5.17.15 ] ~ [ linux-5.16.20 ] ~ [ linux-5.15.171 ] ~ [ linux-5.14.21 ] ~ [ linux-5.13.19 ] ~ [ linux-5.12.19 ] ~ [ linux-5.11.22 ] ~ [ linux-5.10.229 ] ~ [ linux-5.9.16 ] ~ [ linux-5.8.18 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.285 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.323 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.336 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.337 ] ~ [ linux-4.4.302 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.12 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

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1 # SPDX-License-Identifier: GPL-2.0 << 2 # Unified Makefile for i386 and x86_64 << 3 << 4 # select defconfig based on actual architectur << 5 ifeq ($(ARCH),x86) << 6 ifeq ($(shell uname -m | sed -e 's/i.86/i386 << 7 KBUILD_DEFCONFIG := i386_defconfig << 8 else << 9 KBUILD_DEFCONFIG := x86_64_defconfig << 10 endif << 11 else << 12 KBUILD_DEFCONFIG := $(ARCH)_defconfig << 13 endif << 14 << 15 ifdef CONFIG_CC_IS_GCC << 16 RETPOLINE_CFLAGS := $(call cc-option,-m << 17 RETPOLINE_VDSO_CFLAGS := $(call cc-option,-m << 18 endif << 19 ifdef CONFIG_CC_IS_CLANG << 20 RETPOLINE_CFLAGS := -mretpoline-externa << 21 RETPOLINE_VDSO_CFLAGS := -mretpoline << 22 endif << 23 RETPOLINE_CFLAGS += $(call cc-option,-m << 24 << 25 ifdef CONFIG_MITIGATION_RETHUNK << 26 RETHUNK_CFLAGS := -mfunction-return=t << 27 RETHUNK_RUSTFLAGS := -Zfunction-return=t << 28 RETPOLINE_CFLAGS += $(RETHUNK_CFLAGS) << 29 RETPOLINE_RUSTFLAGS += $(RETHUNK_RUSTFLAGS << 30 endif << 31 << 32 export RETHUNK_CFLAGS << 33 export RETHUNK_RUSTFLAGS << 34 export RETPOLINE_CFLAGS << 35 export RETPOLINE_RUSTFLAGS << 36 export RETPOLINE_VDSO_CFLAGS << 37 << 38 # For gcc stack alignment is specified with -m << 39 # clang has the option -mstack-alignment for t << 40 ifneq ($(call cc-option, -mpreferred-stack-bou << 41 cc_stack_align4 := -mpreferred-stack-bou << 42 cc_stack_align8 := -mpreferred-stack-bou << 43 else ifneq ($(call cc-option, -mstack-alignmen << 44 cc_stack_align4 := -mstack-alignment=4 << 45 cc_stack_align8 := -mstack-alignment=8 << 46 endif << 47 << 48 # How to compile the 16-bit code. Note we alw << 49 # that way we can complain to the user if the << 50 REALMODE_CFLAGS := -std=gnu11 -m16 -g -Os -DDI << 51 -Wall -Wstrict-prototypes - << 52 -fno-strict-aliasing -fomit << 53 -mno-mmx -mno-sse $(call cc << 54 << 55 REALMODE_CFLAGS += -ffreestanding << 56 REALMODE_CFLAGS += -fno-stack-protector << 57 REALMODE_CFLAGS += -Wno-address-of-packed-memb << 58 REALMODE_CFLAGS += $(cc_stack_align4) << 59 REALMODE_CFLAGS += $(CLANG_FLAGS) << 60 ifdef CONFIG_CC_IS_CLANG << 61 REALMODE_CFLAGS += -Wno-gnu << 62 endif << 63 export REALMODE_CFLAGS << 64 << 65 # BITS is used as extension for files which ar << 66 # and a 64 bit version to simplify shared Make << 67 # e.g.: obj-y += foo_$(BITS).o << 68 export BITS << 69 << 70 # << 71 # Prevent GCC from generating any FP code by m << 72 # << 73 # This must happen before we try the -mpreferr << 74 # << 75 # https://gcc.gnu.org/bugzilla/show_bug.cgi << 76 # << 77 KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 - << 78 KBUILD_RUSTFLAGS += --target=$(objtree)/script << 79 KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse << 80 << 81 # << 82 # CFLAGS for compiling floating point code ins << 83 # << 84 CC_FLAGS_FPU := -msse -msse2 << 85 ifdef CONFIG_CC_IS_GCC << 86 # Stack alignment mismatch, proceed with cauti << 87 # GCC < 7.1 cannot compile code using `double` << 88 # (8B stack alignment). << 89 # See https://gcc.gnu.org/bugzilla/show_bug.cg << 90 # << 91 # The "-msse" in the first argument is there s << 92 # -mpreferred-stack-boundary=3 build error: << 93 # << 94 # -mpreferred-stack-boundary=3 is not between << 95 # << 96 # can be triggered. Otherwise gcc doesn't comp << 97 CC_FLAGS_FPU += -mhard-float << 98 CC_FLAGS_FPU += $(call cc-option,-msse -mprefe << 99 endif << 100 << 101 ifeq ($(CONFIG_X86_KERNEL_IBT),y) << 102 # << 103 # Kernel IBT has S_CET.NOTRACK_EN=0, as such t << 104 # NOTRACK prefixes. Current generation compile << 105 # for jump-tables, as such, disable jump-table << 106 # << 107 # (jump-tables are implicitly disabled by RETP << 108 # << 109 # https://gcc.gnu.org/bugzilla/show_bug.cgi? << 110 # 1 # 111 KBUILD_CFLAGS += $(call cc-option,-fcf-protect !! 2 # alpha/Makefile 112 KBUILD_RUSTFLAGS += -Zcf-protection=branch -Zn << 113 else << 114 KBUILD_CFLAGS += $(call cc-option,-fcf-protect << 115 endif << 116 << 117 ifeq ($(CONFIG_X86_32),y) << 118 BITS := 32 << 119 UTS_MACHINE := i386 << 120 CHECKFLAGS += -D__i386__ << 121 << 122 KBUILD_AFLAGS += -m32 << 123 KBUILD_CFLAGS += -m32 << 124 << 125 KBUILD_CFLAGS += -msoft-float -mregpar << 126 << 127 # Never want PIC in a 32-bit kernel, p << 128 # with nonstandard options << 129 KBUILD_CFLAGS += -fno-pic << 130 << 131 # Align the stack to the register widt << 132 # alignment of 16 bytes. This reduces << 133 # alignment instructions. << 134 KBUILD_CFLAGS += $(cc_stack_align4) << 135 << 136 # CPU-specific tuning. Anything which << 137 include $(srctree)/arch/x86/Makefile_3 << 138 KBUILD_CFLAGS += $(cflags-y) << 139 << 140 # temporary until string.h is fixed << 141 KBUILD_CFLAGS += -ffreestanding << 142 << 143 ifeq ($(CONFIG_STACKPROTECTOR),y) << 144 ifeq ($(CONFIG_SMP),y) << 145 KBUILD_CFLAGS += -msta << 146 else << 147 KBUILD_CFLAGS += -msta << 148 endif << 149 endif << 150 else << 151 BITS := 64 << 152 UTS_MACHINE := x86_64 << 153 CHECKFLAGS += -D__x86_64__ << 154 << 155 KBUILD_AFLAGS += -m64 << 156 KBUILD_CFLAGS += -m64 << 157 << 158 # Align jump targets to 1 byte, not th << 159 KBUILD_CFLAGS += $(call cc-option,-fal << 160 << 161 # Pack loops tightly as well: << 162 KBUILD_CFLAGS += $(call cc-option,-fal << 163 << 164 # Don't autogenerate traditional x87 i << 165 KBUILD_CFLAGS += -mno-80387 << 166 KBUILD_CFLAGS += $(call cc-option,-mno << 167 << 168 # By default gcc and clang use a stack << 169 # However the standard kernel entry on << 170 # 8-byte boundary. If the compiler isn << 171 # alignment it will generate extra ali << 172 # default alignment which keep the sta << 173 # Furthermore an alignment to the regi << 174 # and the number of alignment instruct << 175 KBUILD_CFLAGS += $(cc_stack_align8) << 176 << 177 # Use -mskip-rax-setup if supported. << 178 KBUILD_CFLAGS += $(call cc-option,-msk << 179 << 180 # FIXME - should be integrated in Make << 181 cflags-$(CONFIG_MK8) += -ma << 182 cflags-$(CONFIG_MPSC) += -ma << 183 cflags-$(CONFIG_MCORE2) += -ma << 184 cflags-$(CONFIG_MATOM) += -ma << 185 cflags-$(CONFIG_GENERIC_CPU) += -mt << 186 KBUILD_CFLAGS += $(cflags-y) << 187 << 188 rustflags-$(CONFIG_MK8) += -Ct << 189 rustflags-$(CONFIG_MPSC) += -Ct << 190 rustflags-$(CONFIG_MCORE2) += -Ct << 191 rustflags-$(CONFIG_MATOM) += -Ct << 192 rustflags-$(CONFIG_GENERIC_CPU) += -Zt << 193 KBUILD_RUSTFLAGS += $(rustflags-y) << 194 << 195 KBUILD_CFLAGS += -mno-red-zone << 196 KBUILD_CFLAGS += -mcmodel=kernel << 197 KBUILD_RUSTFLAGS += -Cno-redzone=y << 198 KBUILD_RUSTFLAGS += -Ccode-model=kerne << 199 endif << 200 << 201 # << 202 # If the function graph tracer is used with mc << 203 # '-maccumulate-outgoing-args' is needed to pr << 204 # (https://gcc.gnu.org/bugzilla/show_bug.cgi?i << 205 # << 206 ifdef CONFIG_FUNCTION_GRAPH_TRACER << 207 ifndef CONFIG_HAVE_FENTRY << 208 ACCUMULATE_OUTGOING_ARGS := 1 << 209 endif << 210 endif << 211 << 212 ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1) << 213 # This compiler flag is not supported << 214 KBUILD_CFLAGS += $(call cc-option,-mac << 215 endif << 216 << 217 # Workaround for a gcc prelease that unfortuna << 218 KBUILD_CFLAGS += -Wno-sign-compare << 219 # 3 # 220 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl !! 4 # This file is subject to the terms and conditions of the GNU General Public 221 !! 5 # License. See the file "COPYING" in the main directory of this archive 222 # Avoid indirect branches in kernel to deal wi !! 6 # for more details. 223 ifdef CONFIG_MITIGATION_RETPOLINE << 224 KBUILD_CFLAGS += $(RETPOLINE_CFLAGS) << 225 KBUILD_RUSTFLAGS += $(RETPOLINE_RUSTFLAGS) << 226 # Additionally, avoid generating expensive i << 227 # are subject to retpolines for small number << 228 # LLVM turns off jump table generation by de << 229 # retpoline builds, however, gcc does not fo << 230 # only been fixed starting from gcc stable v << 231 # onwards, but not for older ones. See gcc b << 232 ifndef CONFIG_CC_IS_CLANG << 233 KBUILD_CFLAGS += -fno-jump-tables << 234 endif << 235 endif << 236 << 237 ifdef CONFIG_MITIGATION_SLS << 238 KBUILD_CFLAGS += -mharden-sls=all << 239 endif << 240 << 241 ifdef CONFIG_CALL_PADDING << 242 PADDING_CFLAGS := -fpatchable-function-entry=$ << 243 KBUILD_CFLAGS += $(PADDING_CFLAGS) << 244 export PADDING_CFLAGS << 245 << 246 PADDING_RUSTFLAGS := -Zpatchable-function-entr << 247 KBUILD_RUSTFLAGS += $(PADDING_RUSTFLAGS) << 248 export PADDING_RUSTFLAGS << 249 endif << 250 << 251 KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE) << 252 << 253 ifdef CONFIG_X86_NEED_RELOCS << 254 LDFLAGS_vmlinux := --emit-relocs --discard-non << 255 else << 256 LDFLAGS_vmlinux := << 257 endif << 258 << 259 # 7 # 260 # The 64-bit kernel must be aligned to 2MB. P !! 8 # Copyright (C) 1994 by Linus Torvalds 261 # the linker to force 2MB page size regardless << 262 # by the linker. << 263 # 9 # 264 ifdef CONFIG_X86_64 << 265 LDFLAGS_vmlinux += -z max-page-size=0x200000 << 266 endif << 267 << 268 << 269 archscripts: scripts_basic << 270 $(Q)$(MAKE) $(build)=arch/x86/tools re << 271 10 272 ### !! 11 NM := $(NM) -B 273 # Syscall table generation << 274 12 275 archheaders: !! 13 LDFLAGS_vmlinux := -static -N #-relax 276 $(Q)$(MAKE) $(build)=arch/x86/entry/sy !! 14 CHECKFLAGS += -D__alpha__ 277 !! 15 cflags-y := -pipe -mno-fp-regs -ffixed-8 278 ### !! 16 cflags-y += $(call cc-option, -fno-jump-tables) 279 # Kernel objects << 280 << 281 libs-y += arch/x86/lib/ << 282 << 283 # drivers-y are linked after core-y << 284 drivers-$(CONFIG_MATH_EMULATION) += arch/x86/m << 285 drivers-$(CONFIG_PCI) += arch/x86/p << 286 17 287 # suspend and hibernation support !! 18 cpuflags-$(CONFIG_ALPHA_EV4) := -mcpu=ev4 288 drivers-$(CONFIG_PM) += arch/x86/power/ !! 19 cpuflags-$(CONFIG_ALPHA_EV5) := -mcpu=ev5 >> 20 cpuflags-$(CONFIG_ALPHA_EV56) := -mcpu=ev56 >> 21 cpuflags-$(CONFIG_ALPHA_POLARIS) := -mcpu=pca56 >> 22 cpuflags-$(CONFIG_ALPHA_SX164) := -mcpu=pca56 >> 23 cpuflags-$(CONFIG_ALPHA_EV6) := -mcpu=ev6 >> 24 cpuflags-$(CONFIG_ALPHA_EV67) := -mcpu=ev67 >> 25 # If GENERIC, make sure to turn off any instruction set extensions that >> 26 # the host compiler might have on by default. Given that EV4 and EV5 >> 27 # have the same instruction set, prefer EV5 because an EV5 schedule is >> 28 # more likely to keep an EV4 processor busy than vice-versa. >> 29 cpuflags-$(CONFIG_ALPHA_GENERIC) := -mcpu=ev5 289 30 290 drivers-$(CONFIG_VIDEO) += arch/x86/video/ !! 31 cflags-y += $(cpuflags-y) 291 32 292 #### << 293 # boot loader support. Several targets are kep << 294 33 295 boot := arch/x86/boot !! 34 # For TSUNAMI, we must have the assembler not emulate our instructions. >> 35 # The same is true for IRONGATE, POLARIS, PYXIS. >> 36 # BWX is most important, but we don't really want any emulation ever. >> 37 KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6 296 38 297 BOOT_TARGETS = bzdisk fdimage fdimage144 fdima !! 39 libs-y += arch/alpha/lib/ 298 40 299 PHONY += bzImage $(BOOT_TARGETS) !! 41 # export what is needed by arch/alpha/boot/Makefile >> 42 LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y)) >> 43 export LIBS_Y 300 44 301 # Default kernel to build !! 45 boot := arch/alpha/boot 302 all: bzImage << 303 46 304 # KBUILD_IMAGE specify target image being buil !! 47 #Default target when executing make with no arguments 305 KBUILD_IMAGE := $(boot)/bzImage !! 48 all boot: $(boot)/vmlinux.gz 306 49 307 bzImage: vmlinux !! 50 $(boot)/vmlinux.gz: vmlinux 308 ifeq ($(CONFIG_X86_DECODER_SELFTEST),y) << 309 $(Q)$(MAKE) $(build)=arch/x86/tools po << 310 endif << 311 $(Q)$(MAKE) $(build)=$(boot) $(KBUILD_ << 312 $(Q)mkdir -p $(objtree)/arch/$(UTS_MAC << 313 $(Q)ln -fsn ../../x86/boot/bzImage $(o << 314 << 315 $(BOOT_TARGETS): vmlinux << 316 $(Q)$(MAKE) $(build)=$(boot) $@ 51 $(Q)$(MAKE) $(build)=$(boot) $@ 317 52 318 PHONY += install !! 53 bootimage bootpfile bootpzfile: vmlinux 319 install: !! 54 $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ 320 $(call cmd,install) << 321 << 322 vdso-install-$(CONFIG_X86_64) += arc << 323 vdso-install-$(CONFIG_X86_X32_ABI) += arc << 324 vdso-install-$(CONFIG_COMPAT_32) += arc << 325 << 326 archprepare: checkbin << 327 checkbin: << 328 ifdef CONFIG_MITIGATION_RETPOLINE << 329 ifeq ($(RETPOLINE_CFLAGS),) << 330 @echo "You are building kernel with no << 331 @echo "Please update your compiler." > << 332 @false << 333 endif << 334 endif << 335 << 336 ifdef CONFIG_UNWINDER_ORC << 337 orc_hash_h := arch/$(SRCARCH)/include/generate << 338 orc_hash_sh := $(srctree)/scripts/orc_hash.sh << 339 targets += $(orc_hash_h) << 340 quiet_cmd_orc_hash = GEN $@ << 341 cmd_orc_hash = mkdir -p $(dir $@); \ << 342 $(CONFIG_SHELL) $(orc_has << 343 $(orc_hash_h): $(srctree)/arch/x86/include/asm << 344 $(call if_changed,orc_hash) << 345 archprepare: $(orc_hash_h) << 346 endif << 347 << 348 archclean: << 349 $(Q)rm -rf $(objtree)/arch/i386 << 350 $(Q)rm -rf $(objtree)/arch/x86_64 << 351 55 352 define archhelp !! 56 archheaders: 353 echo '* bzImage - Compressed k !! 57 $(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all 354 echo ' install - Install kern << 355 echo ' (distributio << 356 echo ' $$(INSTALL_P << 357 echo '' << 358 echo ' fdimage - Create 1.4MB << 359 echo ' fdimage144 - Create 1.4MB << 360 echo ' fdimage288 - Create 2.8MB << 361 echo ' hdimage - Create a BIO << 362 echo ' isoimage - Create a boo << 363 echo ' bzdisk/fdima << 364 echo ' FDARGS="..." << 365 echo ' FDINITRD=fil << 366 58 >> 59 define archhelp >> 60 echo '* boot - Compressed kernel image (arch/alpha/boot/vmlinux.gz)' >> 61 echo ' bootimage - SRM bootable image (arch/alpha/boot/bootimage)' >> 62 echo ' bootpfile - BOOTP bootable image (arch/alpha/boot/bootpfile)' >> 63 echo ' bootpzfile - compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)' 367 endef 64 endef

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TOMOYO Linux Cross Reference
Linux/arch/x86/Makefile

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Differences between /arch/x86/Makefile (Version linux-6.12-rc7) and /arch/alpha/Makefile (Version linux-6.4.16)

TOMOYO Linux Cross Reference Linux/arch/x86/Makefile

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Differences between /arch/x86/Makefile (Version linux-6.12-rc7) and /arch/alpha/Makefile (Version linux-6.4.16)

TOMOYO Linux Cross Reference
Linux/arch/x86/Makefile