1 # SPDX-License-Identifier: GPL-2.0 2 VERSION = 6 3 PATCHLEVEL = 11 4 SUBLEVEL = 5 5 EXTRAVERSION = 6 NAME = Baby Opossum Posse 7 8 # *DOCUMENTATION* 9 # To see a list of typical targets execute "ma 10 # More info can be located in ./README 11 # Comments in this file are targeted only to t 12 # expect to learn how to build the kernel read 13 14 ifeq ($(filter output-sync,$(.FEATURES)),) 15 $(error GNU Make >= 4.0 is required. Your Make 16 endif 17 18 $(if $(filter __%, $(MAKECMDGOALS)), \ 19 $(error targets prefixed with '__' are 20 21 # That's our default target when none is given 22 PHONY := __all 23 __all: 24 25 # We are using a recursive build, so we need t 26 # to get the ordering right. 27 # 28 # Most importantly: sub-Makefiles should only 29 # their own directory. If in some directory we 30 # a file in another dir (which doesn't happen 31 # unavoidable when linking the built-in.a targ 32 # turn into vmlinux), we will call a sub make 33 # after that we are sure that everything which 34 # is now up to date. 35 # 36 # The only cases where we need to modify files 37 # effects are thus separated out and done befo 38 # descending is started. They are now explicit 39 # prepare rule. 40 41 this-makefile := $(lastword $(MAKEFILE_LIST)) 42 abs_srctree := $(realpath $(dir $(this-makefil 43 abs_objtree := $(CURDIR) 44 45 ifneq ($(sub_make_done),1) 46 47 # Do not use make's built-in rules and variabl 48 # (this increases performance and avoids hard- 49 MAKEFLAGS += -rR 50 51 # Avoid funny character set dependencies 52 unexport LC_ALL 53 LC_COLLATE=C 54 LC_NUMERIC=C 55 export LC_COLLATE LC_NUMERIC 56 57 # Avoid interference with shell env settings 58 unexport GREP_OPTIONS 59 60 # Beautify output 61 # -------------------------------------------- 62 # 63 # Most of build commands in Kbuild start with 64 # "quiet_cmd_*". If defined, the short log is 65 # that command is printed by default. 66 # 67 # e.g.) 68 # quiet_cmd_depmod = DEPMOD $(MODLIB) 69 # cmd_depmod = $(srctree)/scripts/dep 70 # 71 # A simple variant is to prefix commands with 72 # for commands that shall be hidden in non-ver 73 # 74 # $(Q)$(MAKE) $(build)=scripts/basic 75 # 76 # If KBUILD_VERBOSE contains 1, the whole comm 77 # If KBUILD_VERBOSE contains 2, the reason for 78 # 79 # To put more focus on warnings, be less verbo 80 # Use 'make V=1' to see the full commands 81 82 ifeq ("$(origin V)", "command line") 83 KBUILD_VERBOSE = $(V) 84 endif 85 86 quiet = quiet_ 87 Q = @ 88 89 ifneq ($(findstring 1, $(KBUILD_VERBOSE)),) 90 quiet = 91 Q = 92 endif 93 94 # If the user is running make -s (silent mode) 95 # commands 96 ifneq ($(findstring s,$(firstword -$(MAKEFLAGS 97 quiet=silent_ 98 override KBUILD_VERBOSE := 99 endif 100 101 export quiet Q KBUILD_VERBOSE 102 103 # Call a source code checker (by default, "spa 104 # C compilation. 105 # 106 # Use 'make C=1' to enable checking of only re 107 # Use 'make C=2' to enable checking of *all* s 108 # of whether they are re-compiled or not. 109 # 110 # See the file "Documentation/dev-tools/sparse 111 # including where to get the "sparse" utility. 112 113 ifeq ("$(origin C)", "command line") 114 KBUILD_CHECKSRC = $(C) 115 endif 116 ifndef KBUILD_CHECKSRC 117 KBUILD_CHECKSRC = 0 118 endif 119 120 export KBUILD_CHECKSRC 121 122 # Enable "clippy" (a linter) as part of the Ru 123 # 124 # Use 'make CLIPPY=1' to enable it. 125 ifeq ("$(origin CLIPPY)", "command line") 126 KBUILD_CLIPPY := $(CLIPPY) 127 endif 128 129 export KBUILD_CLIPPY 130 131 # Use make M=dir or set the environment variab 132 # directory of external module to build. Setti 133 ifeq ("$(origin M)", "command line") 134 KBUILD_EXTMOD := $(M) 135 endif 136 137 $(if $(word 2, $(KBUILD_EXTMOD)), \ 138 $(error building multiple external mod 139 140 $(foreach x, % :, $(if $(findstring $x, $(KBUI 141 $(error module directory path cannot c 142 143 # Remove trailing slashes 144 ifneq ($(filter %/, $(KBUILD_EXTMOD)),) 145 KBUILD_EXTMOD := $(shell dirname $(KBUILD_EXTM 146 endif 147 148 export KBUILD_EXTMOD 149 150 # backward compatibility 151 KBUILD_EXTRA_WARN ?= $(KBUILD_ENABLE_EXTRA_GCC 152 153 ifeq ("$(origin W)", "command line") 154 KBUILD_EXTRA_WARN := $(W) 155 endif 156 157 export KBUILD_EXTRA_WARN 158 159 # Kbuild will save output files in the current 160 # This does not need to match to the root of t 161 # 162 # For example, you can do this: 163 # 164 # cd /dir/to/store/output/files; make -f /dir 165 # 166 # If you want to save output files in a differ 167 # two syntaxes to specify it. 168 # 169 # 1) O= 170 # Use "make O=dir/to/store/output/files/" 171 # 172 # 2) Set KBUILD_OUTPUT 173 # Set the environment variable KBUILD_OUTPUT t 174 # export KBUILD_OUTPUT=dir/to/store/output/fil 175 # 176 # The O= assignment takes precedence over the 177 # variable. 178 179 # Do we want to change the working directory? 180 ifeq ("$(origin O)", "command line") 181 KBUILD_OUTPUT := $(O) 182 endif 183 184 ifneq ($(KBUILD_OUTPUT),) 185 # $(realpath ...) gets empty if the path does 186 $(shell mkdir -p "$(KBUILD_OUTPUT)") 187 # $(realpath ...) resolves symlinks 188 abs_objtree := $(realpath $(KBUILD_OUTPUT)) 189 $(if $(abs_objtree),,$(error failed to create 190 endif # ifneq ($(KBUILD_OUTPUT),) 191 192 ifneq ($(words $(subst :, ,$(abs_srctree))), 1 193 $(error source directory cannot contain spaces 194 endif 195 196 export sub_make_done := 1 197 198 endif # sub_make_done 199 200 ifeq ($(abs_objtree),$(CURDIR)) 201 # Suppress "Entering directory ..." if we are 202 no-print-directory := --no-print-directory 203 else 204 # Recursion to show "Entering directory ..." 205 need-sub-make := 1 206 endif 207 208 ifeq ($(filter --no-print-directory, $(MAKEFLA 209 # If --no-print-directory is unset, recurse on 210 # You may end up recursing into __sub-make twi 211 # behavior change in GNU Make 4.4.1. 212 need-sub-make := 1 213 endif 214 215 ifeq ($(need-sub-make),1) 216 217 PHONY += $(MAKECMDGOALS) __sub-make 218 219 $(filter-out $(this-makefile), $(MAKECMDGOALS) 220 @: 221 222 # Invoke a second make in the output directory 223 __sub-make: 224 $(Q)$(MAKE) $(no-print-directory) -C $ 225 -f $(abs_srctree)/Makefile $(MAKECMDGO 226 227 else # need-sub-make 228 229 # We process the rest of the Makefile if this 230 231 ifeq ($(abs_srctree),$(abs_objtree)) 232 # building in the source tree 233 srctree := . 234 building_out_of_srctree := 235 else 236 ifeq ($(abs_srctree)/,$(dir $(abs_objt 237 # building in a subdirectory o 238 srctree := .. 239 else 240 srctree := $(abs_srctree) 241 endif 242 building_out_of_srctree := 1 243 endif 244 245 ifneq ($(KBUILD_ABS_SRCTREE),) 246 srctree := $(abs_srctree) 247 endif 248 249 objtree := . 250 251 VPATH := 252 253 ifeq ($(KBUILD_EXTMOD),) 254 ifdef building_out_of_srctree 255 VPATH := $(srctree) 256 endif 257 endif 258 259 export building_out_of_srctree srctree objtree 260 261 # To make sure we do not include .config for a 262 # catch them early, and hand them over to scri 263 # It is allowed to specify more targets when c 264 # mixing *config targets and build targets. 265 # For example 'make oldconfig all'. 266 # Detect when mixed targets is specified, and 267 # of make so .config is not included in this c 268 269 version_h := include/generated/uapi/linux/vers 270 271 clean-targets := %clean mrproper cleandocs 272 no-dot-config-targets := $(clean-targets) \ 273 cscope gtags TAGS tag 274 $(version_h) headers 275 %asm-generic kernelve 276 outputmakefile rustav 277 no-sync-config-targets := $(no-dot-config-targ 278 image_name 279 single-targets := %.a %.i %.ko %.lds %.ll %.ls 280 281 config-build := 282 mixed-build := 283 need-config := 1 284 may-sync-config := 1 285 single-build := 286 287 ifneq ($(filter $(no-dot-config-targets), $(MA 288 ifeq ($(filter-out $(no-dot-config-targets 289 need-config := 290 endif 291 endif 292 293 ifneq ($(filter $(no-sync-config-targets), $(M 294 ifeq ($(filter-out $(no-sync-config-target 295 may-sync-config := 296 endif 297 endif 298 299 need-compiler := $(may-sync-config) 300 301 ifneq ($(KBUILD_EXTMOD),) 302 may-sync-config := 303 endif 304 305 ifeq ($(KBUILD_EXTMOD),) 306 ifneq ($(filter %config,$(MAKECMDGOALS)),) 307 config-build := 1 308 ifneq ($(words $(MAKECMDGOALS)),1) 309 mixed-build := 1 310 endif 311 endif 312 endif 313 314 # We cannot build single targets and the other 315 ifneq ($(filter $(single-targets), $(MAKECMDGO 316 single-build := 1 317 ifneq ($(filter-out $(single-targets), $(M 318 mixed-build := 1 319 endif 320 endif 321 322 # For "make -j clean all", "make -j mrproper d 323 ifneq ($(filter $(clean-targets),$(MAKECMDGOAL 324 ifneq ($(filter-out $(clean-targets),$(MAK 325 mixed-build := 1 326 endif 327 endif 328 329 # install and modules_install need also be pro 330 ifneq ($(filter install,$(MAKECMDGOALS)),) 331 ifneq ($(filter modules_install,$(MAKECMDG 332 mixed-build := 1 333 endif 334 endif 335 336 ifdef mixed-build 337 # ============================================ 338 # We're called with mixed targets (*config and 339 # Handle them one by one. 340 341 PHONY += $(MAKECMDGOALS) __build_one_by_one 342 343 $(MAKECMDGOALS): __build_one_by_one 344 @: 345 346 __build_one_by_one: 347 $(Q)set -e; \ 348 for i in $(MAKECMDGOALS); do \ 349 $(MAKE) -f $(srctree)/Makefile 350 done 351 352 else # !mixed-build 353 354 include $(srctree)/scripts/Kbuild.include 355 356 # Read KERNELRELEASE from include/config/kerne 357 KERNELRELEASE = $(call read-file, include/conf 358 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),. 359 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEA 360 361 include $(srctree)/scripts/subarch.include 362 363 # Cross compiling and selecting different set 364 # -------------------------------------------- 365 # 366 # When performing cross compilation for other 367 # to the target architecture. (See arch/* for 368 # ARCH can be set during invocation of make: 369 # make ARCH=arm64 370 # Another way is to have ARCH set in the envir 371 # The default ARCH is the host where make is e 372 373 # CROSS_COMPILE specify the prefix used for al 374 # during compilation. Only gcc and related bin 375 # are prefixed with $(CROSS_COMPILE). 376 # CROSS_COMPILE can be set on the command line 377 # make CROSS_COMPILE=aarch64-linux-gnu- 378 # Alternatively CROSS_COMPILE can be set in th 379 # Default value for CROSS_COMPILE is not to pr 380 # Note: Some architectures assign CROSS_COMPIL 381 ARCH ?= $(SUBARCH) 382 383 # Architecture as present in compile.h 384 UTS_MACHINE := $(ARCH) 385 SRCARCH := $(ARCH) 386 387 # Additional ARCH settings for x86 388 ifeq ($(ARCH),i386) 389 SRCARCH := x86 390 endif 391 ifeq ($(ARCH),x86_64) 392 SRCARCH := x86 393 endif 394 395 # Additional ARCH settings for sparc 396 ifeq ($(ARCH),sparc32) 397 SRCARCH := sparc 398 endif 399 ifeq ($(ARCH),sparc64) 400 SRCARCH := sparc 401 endif 402 403 # Additional ARCH settings for parisc 404 ifeq ($(ARCH),parisc64) 405 SRCARCH := parisc 406 endif 407 408 export cross_compiling := 409 ifneq ($(SRCARCH),$(SUBARCH)) 410 cross_compiling := 1 411 endif 412 413 KCONFIG_CONFIG ?= .config 414 export KCONFIG_CONFIG 415 416 # SHELL used by kbuild 417 CONFIG_SHELL := sh 418 419 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 420 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAG 421 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/d 422 423 ifneq ($(LLVM),) 424 ifneq ($(filter %/,$(LLVM)),) 425 LLVM_PREFIX := $(LLVM) 426 else ifneq ($(filter -%,$(LLVM)),) 427 LLVM_SUFFIX := $(LLVM) 428 endif 429 430 HOSTCC = $(LLVM_PREFIX)clang$(LLVM_SUFFIX) 431 HOSTCXX = $(LLVM_PREFIX)clang++$(LLVM_SUFFIX) 432 else 433 HOSTCC = gcc 434 HOSTCXX = g++ 435 endif 436 HOSTRUSTC = rustc 437 HOSTPKG_CONFIG = pkg-config 438 439 KBUILD_USERHOSTCFLAGS := -Wall -Wmissing-proto 440 -O2 -fomit-frame-poin 441 KBUILD_USERCFLAGS := $(KBUILD_USERHOSTCFLAGS) 442 KBUILD_USERLDFLAGS := $(USERLDFLAGS) 443 444 # These flags apply to all Rust code in the tr 445 # host programs. 446 export rust_common_flags := --edition=2021 \ 447 -Zbinary_dep_depin 448 -Astable_features 449 -Dunsafe_op_in_uns 450 -Dnon_ascii_idents 451 -Wrust_2018_idioms 452 -Wunreachable_pub 453 -Wmissing_docs \ 454 -Wrustdoc::missing 455 -Wclippy::all \ 456 -Wclippy::mut_mut 457 -Wclippy::needless 458 -Wclippy::needless 459 -Wclippy::no_mangl 460 -Wclippy::dbg_macr 461 462 KBUILD_HOSTCFLAGS := $(KBUILD_USERHOSTCFLAGS 463 $(HOSTCFLAGS) -I $(srct 464 KBUILD_HOSTCXXFLAGS := -Wall -O2 $(HOST_LFS_CF 465 -I $(srctree)/scripts/i 466 KBUILD_HOSTRUSTFLAGS := $(rust_common_flags) - 467 -Zallow-features= $(HO 468 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(H 469 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOST 470 471 # Make variables (CC, etc...) 472 CPP = $(CC) -E 473 ifneq ($(LLVM),) 474 CC = $(LLVM_PREFIX)clang$(LLVM_SU 475 LD = $(LLVM_PREFIX)ld.lld$(LLVM_S 476 AR = $(LLVM_PREFIX)llvm-ar$(LLVM_ 477 NM = $(LLVM_PREFIX)llvm-nm$(LLVM_ 478 OBJCOPY = $(LLVM_PREFIX)llvm-objcopy$( 479 OBJDUMP = $(LLVM_PREFIX)llvm-objdump$( 480 READELF = $(LLVM_PREFIX)llvm-readelf$( 481 STRIP = $(LLVM_PREFIX)llvm-strip$(LL 482 else 483 CC = $(CROSS_COMPILE)gcc 484 LD = $(CROSS_COMPILE)ld 485 AR = $(CROSS_COMPILE)ar 486 NM = $(CROSS_COMPILE)nm 487 OBJCOPY = $(CROSS_COMPILE)objcopy 488 OBJDUMP = $(CROSS_COMPILE)objdump 489 READELF = $(CROSS_COMPILE)readelf 490 STRIP = $(CROSS_COMPILE)strip 491 endif 492 RUSTC = rustc 493 RUSTDOC = rustdoc 494 RUSTFMT = rustfmt 495 CLIPPY_DRIVER = clippy-driver 496 BINDGEN = bindgen 497 PAHOLE = pahole 498 RESOLVE_BTFIDS = $(objtree)/tools/bpf/resolve 499 LEX = flex 500 YACC = bison 501 AWK = awk 502 INSTALLKERNEL := installkernel 503 PERL = perl 504 PYTHON3 = python3 505 CHECK = sparse 506 BASH = bash 507 KGZIP = gzip 508 KBZIP2 = bzip2 509 KLZOP = lzop 510 LZMA = lzma 511 LZ4 = lz4c 512 XZ = xz 513 ZSTD = zstd 514 515 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC 516 -Wbitwise -Wno-return-void - 517 NOSTDINC_FLAGS := 518 CFLAGS_MODULE = 519 RUSTFLAGS_MODULE = 520 AFLAGS_MODULE = 521 LDFLAGS_MODULE = 522 CFLAGS_KERNEL = 523 RUSTFLAGS_KERNEL = 524 AFLAGS_KERNEL = 525 LDFLAGS_vmlinux = 526 527 # Use USERINCLUDE when you must reference the 528 USERINCLUDE := \ 529 -I$(srctree)/arch/$(SRCARCH)/i 530 -I$(objtree)/arch/$(SRCARCH)/i 531 -I$(srctree)/include/uapi \ 532 -I$(objtree)/include/generated 533 -include $(srctree)/include/li 534 -include $(srctree)/include/li 535 536 # Use LINUXINCLUDE when you must reference the 537 # Needed to be compatible with the O= option 538 LINUXINCLUDE := \ 539 -I$(srctree)/arch/$(SRCARCH)/i 540 -I$(objtree)/arch/$(SRCARCH)/i 541 $(if $(building_out_of_srctree 542 -I$(objtree)/include \ 543 $(USERINCLUDE) 544 545 KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE 546 547 KBUILD_CFLAGS := 548 KBUILD_CFLAGS += -std=gnu11 549 KBUILD_CFLAGS += -fshort-wchar 550 KBUILD_CFLAGS += -funsigned-char 551 KBUILD_CFLAGS += -fno-common 552 KBUILD_CFLAGS += -fno-PIE 553 KBUILD_CFLAGS += -fno-strict-aliasing 554 555 KBUILD_CPPFLAGS := -D__KERNEL__ 556 KBUILD_RUSTFLAGS := $(rust_common_flags) \ 557 -Cpanic=abort -Cembed-bitc 558 -Cforce-unwind-tables=n -C 559 -Csymbol-mangling-version= 560 -Crelocation-model=static 561 -Zfunction-sections=n \ 562 -Wclippy::float_arithmetic 563 564 KBUILD_AFLAGS_KERNEL := 565 KBUILD_CFLAGS_KERNEL := 566 KBUILD_RUSTFLAGS_KERNEL := 567 KBUILD_AFLAGS_MODULE := -DMODULE 568 KBUILD_CFLAGS_MODULE := -DMODULE 569 KBUILD_RUSTFLAGS_MODULE := --cfg MODULE 570 KBUILD_LDFLAGS_MODULE := 571 KBUILD_LDFLAGS := 572 CLANG_FLAGS := 573 574 ifeq ($(KBUILD_CLIPPY),1) 575 RUSTC_OR_CLIPPY_QUIET := CLIPPY 576 RUSTC_OR_CLIPPY = $(CLIPPY_DRIVER) 577 else 578 RUSTC_OR_CLIPPY_QUIET := RUSTC 579 RUSTC_OR_CLIPPY = $(RUSTC) 580 endif 581 582 ifdef RUST_LIB_SRC 583 export RUST_LIB_SRC 584 endif 585 586 # Allows the usage of unstable features in sta 587 export RUSTC_BOOTSTRAP := 1 588 589 export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC K 590 export RUSTC RUSTDOC RUSTFMT RUSTC_OR_CLIPPY_Q 591 export HOSTRUSTC KBUILD_HOSTRUSTFLAGS 592 export CPP AR NM STRIP OBJCOPY OBJDUMP READELF 593 export PERL PYTHON3 CHECK CHECKFLAGS MAKE UTS_ 594 export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD 595 export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS 596 export KBUILD_USERCFLAGS KBUILD_USERLDFLAGS 597 598 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINC 599 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODU 600 export KBUILD_RUSTFLAGS RUSTFLAGS_KERNEL RUSTF 601 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODU 602 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODU 603 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERN 604 605 # Files to ignore in find ... statements 606 607 export RCS_FIND_IGNORE := \( -name SCCS -o -na 608 -name CVS -o -name . 609 -prune -o 610 611 # ============================================ 612 # Rules shared between *config targets and bui 613 614 # Basic helpers built in scripts/basic/ 615 PHONY += scripts_basic 616 scripts_basic: 617 $(Q)$(MAKE) $(build)=scripts/basic 618 619 PHONY += outputmakefile 620 ifdef building_out_of_srctree 621 # Before starting out-of-tree build, make sure 622 # outputmakefile generates a Makefile in the o 623 # separate output directory. This allows conve 624 # output directory. 625 # At the same time when output Makefile genera 626 # ignore whole output directory 627 628 quiet_cmd_makefile = GEN Makefile 629 cmd_makefile = { \ 630 echo "\# Automatically generated by $( 631 echo "include $(srctree)/Makefile"; \ 632 } > Makefile 633 634 outputmakefile: 635 @if [ -f $(srctree)/.config -o \ 636 -d $(srctree)/include/config 637 -d $(srctree)/arch/$(SRCARCH) 638 echo >&2 "***"; \ 639 echo >&2 "*** The source tree 640 echo >&2 "*** in $(abs_srctree 641 echo >&2 "***"; \ 642 false; \ 643 fi 644 $(Q)ln -fsn $(srctree) source 645 $(call cmd,makefile) 646 $(Q)test -e .gitignore || \ 647 { echo "# this is build directory, ign 648 endif 649 650 # The expansion should be delayed until arch/$ 651 # Some architectures define CROSS_COMPILE in a 652 # CC_VERSION_TEXT is referenced from Kconfig ( 653 # and from include/config/auto.conf.cmd to det 654 CC_VERSION_TEXT = $(subst $(pound),,$(shell LC 655 656 ifneq ($(findstring clang,$(CC_VERSION_TEXT)), 657 include $(srctree)/scripts/Makefile.clang 658 endif 659 660 # Include this also for config targets because 661 # cc-cross-prefix to determine CROSS_COMPILE. 662 ifdef need-compiler 663 include $(srctree)/scripts/Makefile.compiler 664 endif 665 666 ifdef config-build 667 # ============================================ 668 # *config targets only - make sure prerequisit 669 # in scripts/kconfig to make the *config targe 670 671 # Read arch-specific Makefile to set KBUILD_DE 672 # KBUILD_DEFCONFIG may point out an alternativ 673 # used for 'make defconfig' 674 include $(srctree)/arch/$(SRCARCH)/Makefile 675 export KBUILD_DEFCONFIG KBUILD_KCONFIG CC_VERS 676 677 config: outputmakefile scripts_basic FORCE 678 $(Q)$(MAKE) $(build)=scripts/kconfig $ 679 680 %config: outputmakefile scripts_basic FORCE 681 $(Q)$(MAKE) $(build)=scripts/kconfig $ 682 683 else #!config-build 684 # ============================================ 685 # Build targets only - this includes vmlinux, 686 # targets and others. In general all targets e 687 688 # If building an external module we do not car 689 # but instead __all depend on modules 690 PHONY += all 691 ifeq ($(KBUILD_EXTMOD),) 692 __all: all 693 else 694 __all: modules 695 endif 696 697 targets := 698 699 # Decide whether to build built-in, modular, o 700 # Normally, just do built-in. 701 702 KBUILD_MODULES := 703 KBUILD_BUILTIN := 1 704 705 # If we have only "make modules", don't compil 706 ifeq ($(MAKECMDGOALS),modules) 707 KBUILD_BUILTIN := 708 endif 709 710 # If we have "make <whatever> modules", compil 711 # in addition to whatever we do anyway. 712 # Just "make" or "make all" shall build module 713 714 ifneq ($(filter all modules nsdeps %compile_co 715 KBUILD_MODULES := 1 716 endif 717 718 ifeq ($(MAKECMDGOALS),) 719 KBUILD_MODULES := 1 720 endif 721 722 export KBUILD_MODULES KBUILD_BUILTIN 723 724 ifdef need-config 725 include include/config/auto.conf 726 endif 727 728 ifeq ($(KBUILD_EXTMOD),) 729 # Objects we will link into vmlinux / subdirs 730 core-y := 731 drivers-y := 732 libs-y := lib/ 733 endif # KBUILD_EXTMOD 734 735 # The all: target is the default when no targe 736 # command line. 737 # This allow a user to issue only 'make' to bu 738 # Defaults to vmlinux, but the arch makefile u 739 all: vmlinux 740 741 CFLAGS_GCOV := -fprofile-arcs -ftest-cover 742 ifdef CONFIG_CC_IS_GCC 743 CFLAGS_GCOV += -fno-tree-loop-im 744 endif 745 export CFLAGS_GCOV 746 747 # The arch Makefiles can override CC_FLAGS_FTR 748 ifdef CONFIG_FUNCTION_TRACER 749 CC_FLAGS_FTRACE := -pg 750 endif 751 752 include $(srctree)/arch/$(SRCARCH)/Makefile 753 754 ifdef need-config 755 ifdef may-sync-config 756 # Read in dependencies to all Kconfig* files, 757 # changes are detected. This should be include 758 # because some architectures define CROSS_COMP 759 include include/config/auto.conf.cmd 760 761 $(KCONFIG_CONFIG): 762 @echo >&2 '***' 763 @echo >&2 '*** Configuration file "$@" 764 @echo >&2 '***' 765 @echo >&2 '*** Please run some configu 766 @echo >&2 '*** "make menuconfig" or "m 767 @echo >&2 '***' 768 @/bin/false 769 770 # The actual configuration files used during t 771 # include/generated/ and include/config/. Upda 772 # include/config/auto.conf (which mirrors .con 773 # 774 # This exploits the 'multi-target pattern rule 775 # The syncconfig should be executed only once 776 # (Note: use the grouped target '&:' when we b 777 # 778 # Do not use $(call cmd,...) here. That would 779 # so you cannot notice that Kconfig is waiting 780 %/config/auto.conf %/config/auto.conf.cmd %/ge 781 $(Q)$(kecho) " SYNC $@" 782 $(Q)$(MAKE) -f $(srctree)/Makefile syn 783 else # !may-sync-config 784 # External modules and some install targets ne 785 # and include/config/auto.conf but do not care 786 # Use auto.conf to trigger the test 787 PHONY += include/config/auto.conf 788 789 include/config/auto.conf: 790 @test -e include/generated/autoconf.h 791 echo >&2; 792 echo >&2 " ERROR: Kernel configuratio 793 echo >&2 " include/generated/a 794 echo >&2 " Run 'make oldconfig 795 echo >&2 ; 796 /bin/false) 797 798 endif # may-sync-config 799 endif # need-config 800 801 KBUILD_CFLAGS += -fno-delete-null-pointer-ch 802 803 ifdef CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE 804 KBUILD_CFLAGS += -O2 805 KBUILD_RUSTFLAGS += -Copt-level=2 806 else ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 807 KBUILD_CFLAGS += -Os 808 KBUILD_RUSTFLAGS += -Copt-level=s 809 endif 810 811 # Always set `debug-assertions` and `overflow- 812 # depends on `opt-level` and `debug-assertions 813 KBUILD_RUSTFLAGS += -Cdebug-assertions=$(if $( 814 KBUILD_RUSTFLAGS += -Coverflow-checks=$(if $(C 815 816 # Tell gcc to never replace conditional load w 817 ifdef CONFIG_CC_IS_GCC 818 # gcc-10 renamed --param=allow-store-data-race 819 # -fno-allow-store-data-races. 820 KBUILD_CFLAGS += $(call cc-option,--param=al 821 KBUILD_CFLAGS += $(call cc-option,-fno-allow 822 endif 823 824 ifdef CONFIG_READABLE_ASM 825 # Disable optimizations that make assembler li 826 # reorder blocks reorders the control in the f 827 # ipa clone creates specialized cloned functio 828 # partial inlining inlines only parts of funct 829 KBUILD_CFLAGS += -fno-reorder-blocks -fno-ipa- 830 endif 831 832 stackp-flags-y 833 stackp-flags-$(CONFIG_STACKPROTECTOR) 834 stackp-flags-$(CONFIG_STACKPROTECTOR_STRONG) 835 836 KBUILD_CFLAGS += $(stackp-flags-y) 837 838 KBUILD_RUSTFLAGS-$(CONFIG_WERROR) += -Dwarning 839 KBUILD_RUSTFLAGS += $(KBUILD_RUSTFLAGS-y) 840 841 ifdef CONFIG_FRAME_POINTER 842 KBUILD_CFLAGS += -fno-omit-frame-pointer -fn 843 KBUILD_RUSTFLAGS += -Cforce-frame-pointers=y 844 else 845 # Some targets (ARM with Thumb2, for example), 846 # pointers. For those, we don't have FUNCTION 847 # select FRAME_POINTER. However, FUNCTION_TRA 848 # incompatible with -fomit-frame-pointer with 849 # -fomit-frame-pointer with FUNCTION_TRACER. 850 # In the Rust target specification, "frame-poi 851 # to "may-omit". 852 ifndef CONFIG_FUNCTION_TRACER 853 KBUILD_CFLAGS += -fomit-frame-pointer 854 endif 855 endif 856 857 # Initialize all stack variables with a 0xAA p 858 ifdef CONFIG_INIT_STACK_ALL_PATTERN 859 KBUILD_CFLAGS += -ftrivial-auto-var-init=pat 860 endif 861 862 # Initialize all stack variables with a zero v 863 ifdef CONFIG_INIT_STACK_ALL_ZERO 864 KBUILD_CFLAGS += -ftrivial-auto-var-init=zer 865 ifdef CONFIG_CC_HAS_AUTO_VAR_INIT_ZERO_ENABLER 866 # https://github.com/llvm/llvm-project/issues/ 867 CC_AUTO_VAR_INIT_ZERO_ENABLER := -enable-trivi 868 export CC_AUTO_VAR_INIT_ZERO_ENABLER 869 KBUILD_CFLAGS += $(CC_AUTO_VAR_INIT_ZERO_ENA 870 endif 871 endif 872 873 # While VLAs have been removed, GCC produces u 874 # for the randomize_kstack_offset feature. Dis 875 KBUILD_CFLAGS += $(call cc-option, -fno-stac 876 877 # Clear used registers at func exit (to reduce 878 ifdef CONFIG_ZERO_CALL_USED_REGS 879 KBUILD_CFLAGS += -fzero-call-used-regs=used- 880 endif 881 882 ifdef CONFIG_FUNCTION_TRACER 883 ifdef CONFIG_FTRACE_MCOUNT_USE_CC 884 CC_FLAGS_FTRACE += -mrecord-mcount 885 ifdef CONFIG_HAVE_NOP_MCOUNT 886 ifeq ($(call cc-option-yn, -mnop-mcount),y 887 CC_FLAGS_FTRACE += -mnop-mcount 888 CC_FLAGS_USING += -DCC_USING_NOP_MCOU 889 endif 890 endif 891 endif 892 ifdef CONFIG_FTRACE_MCOUNT_USE_OBJTOOL 893 ifdef CONFIG_HAVE_OBJTOOL_NOP_MCOUNT 894 CC_FLAGS_USING += -DCC_USING_NOP_MCOU 895 endif 896 endif 897 ifdef CONFIG_FTRACE_MCOUNT_USE_RECORDMCOUNT 898 ifdef CONFIG_HAVE_C_RECORDMCOUNT 899 BUILD_C_RECORDMCOUNT := y 900 export BUILD_C_RECORDMCOUNT 901 endif 902 endif 903 ifdef CONFIG_HAVE_FENTRY 904 # s390-linux-gnu-gcc did not support -mfentr 905 ifeq ($(call cc-option-yn, -mfentry),y) 906 CC_FLAGS_FTRACE += -mfentry 907 CC_FLAGS_USING += -DCC_USING_FENTRY 908 endif 909 endif 910 export CC_FLAGS_FTRACE 911 KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_FLA 912 KBUILD_AFLAGS += $(CC_FLAGS_USING) 913 endif 914 915 # We trigger additional mismatches with less i 916 ifdef CONFIG_DEBUG_SECTION_MISMATCH 917 KBUILD_CFLAGS += -fno-inline-functions-called- 918 endif 919 920 # `rustc`'s `-Zfunction-sections` applies to d 921 ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION 922 KBUILD_CFLAGS_KERNEL += -ffunction-sections -f 923 KBUILD_RUSTFLAGS_KERNEL += -Zfunction-sections 924 LDFLAGS_vmlinux += --gc-sections 925 endif 926 927 ifdef CONFIG_SHADOW_CALL_STACK 928 ifndef CONFIG_DYNAMIC_SCS 929 CC_FLAGS_SCS := -fsanitize=shadow-call-stac 930 KBUILD_CFLAGS += $(CC_FLAGS_SCS) 931 endif 932 export CC_FLAGS_SCS 933 endif 934 935 ifdef CONFIG_LTO_CLANG 936 ifdef CONFIG_LTO_CLANG_THIN 937 CC_FLAGS_LTO := -flto=thin -fsplit-lto-unit 938 else 939 CC_FLAGS_LTO := -flto 940 endif 941 CC_FLAGS_LTO += -fvisibility=hidden 942 943 # Limit inlining across translation units to r 944 KBUILD_LDFLAGS += -mllvm -import-instr-limit=5 945 endif 946 947 ifdef CONFIG_LTO 948 KBUILD_CFLAGS += -fno-lto $(CC_FLAGS_LTO) 949 KBUILD_AFLAGS += -fno-lto 950 export CC_FLAGS_LTO 951 endif 952 953 ifdef CONFIG_CFI_CLANG 954 CC_FLAGS_CFI := -fsanitize=kcfi 955 KBUILD_CFLAGS += $(CC_FLAGS_CFI) 956 export CC_FLAGS_CFI 957 endif 958 959 # Architectures can define flags to add/remove 960 CC_FLAGS_FPU += -D_LINUX_FPU_COMPILATION_UN 961 export CC_FLAGS_FPU 962 export CC_FLAGS_NO_FPU 963 964 ifneq ($(CONFIG_FUNCTION_ALIGNMENT),0) 965 # Set the minimal function alignment. Use the 966 # -fmin-function-alignment if it is available, 967 # See also CONFIG_CC_HAS_SANE_FUNCTION_ALIGNME 968 ifdef CONFIG_CC_HAS_MIN_FUNCTION_ALIGNMENT 969 KBUILD_CFLAGS += -fmin-function-alignment=$(CO 970 else 971 KBUILD_CFLAGS += -falign-functions=$(CONFIG_FU 972 endif 973 endif 974 975 # arch Makefile may override CC so keep this a 976 NOSTDINC_FLAGS += -nostdinc 977 978 # To gain proper coverage for CONFIG_UBSAN_BOU 979 # the kernel uses only C99 flexible arrays for 980 # arrays. Enforce this for everything that may 981 # perform bounds checking. 982 KBUILD_CFLAGS += $(call cc-option, -fstrict-fl 983 984 #Currently, disable -Wstringop-overflow for GC 985 KBUILD_CFLAGS-$(CONFIG_CC_NO_STRINGOP_OVERFLOW 986 KBUILD_CFLAGS-$(CONFIG_CC_STRINGOP_OVERFLOW) + 987 988 # disable invalid "can't wrap" optimizations f 989 KBUILD_CFLAGS += -fno-strict-overflow 990 991 # Make sure -fstack-check isn't enabled (like 992 KBUILD_CFLAGS += -fno-stack-check 993 994 # conserve stack if available 995 ifdef CONFIG_CC_IS_GCC 996 KBUILD_CFLAGS += -fconserve-stack 997 endif 998 999 # change __FILE__ to the relative path from th 1000 KBUILD_CPPFLAGS += $(call cc-option,-fmacro-p 1001 1002 # include additional Makefiles when needed 1003 include-y := scripts/Ma 1004 include-$(CONFIG_DEBUG_INFO) += scripts/Ma 1005 include-$(CONFIG_DEBUG_INFO_BTF)+= scripts/Ma 1006 include-$(CONFIG_KASAN) += scripts/Ma 1007 include-$(CONFIG_KCSAN) += scripts/Ma 1008 include-$(CONFIG_KMSAN) += scripts/Ma 1009 include-$(CONFIG_UBSAN) += scripts/Ma 1010 include-$(CONFIG_KCOV) += scripts/Ma 1011 include-$(CONFIG_RANDSTRUCT) += scripts/Ma 1012 include-$(CONFIG_GCC_PLUGINS) += scripts/Ma 1013 1014 include $(addprefix $(srctree)/, $(include-y) 1015 1016 # scripts/Makefile.gcc-plugins is intentional 1017 # Do not add $(call cc-option,...) below this 1018 # from the clean source tree, the GCC plugins 1019 1020 # Add user supplied CPPFLAGS, AFLAGS, CFLAGS 1021 KBUILD_CPPFLAGS += $(KCPPFLAGS) 1022 KBUILD_AFLAGS += $(KAFLAGS) 1023 KBUILD_CFLAGS += $(KCFLAGS) 1024 KBUILD_RUSTFLAGS += $(KRUSTFLAGS) 1025 1026 KBUILD_LDFLAGS_MODULE += --build-id=sha1 1027 LDFLAGS_vmlinux += --build-id=sha1 1028 1029 KBUILD_LDFLAGS += -z noexecstack 1030 ifeq ($(CONFIG_LD_IS_BFD),y) 1031 KBUILD_LDFLAGS += $(call ld-option,--no-warn 1032 endif 1033 1034 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) 1035 LDFLAGS_vmlinux += -X 1036 endif 1037 1038 ifeq ($(CONFIG_RELR),y) 1039 # ld.lld before 15 did not support -z pack-re 1040 LDFLAGS_vmlinux += $(call ld-option,--pack-dy 1041 endif 1042 1043 # We never want expected sections to be place 1044 # linker. All sections should be explicitly n 1045 ifdef CONFIG_LD_ORPHAN_WARN 1046 LDFLAGS_vmlinux += --orphan-handling=$(CONFIG 1047 endif 1048 1049 # Align the bit size of userspace programs wi 1050 KBUILD_USERCFLAGS += $(filter -m32 -m64 --ta 1051 KBUILD_USERLDFLAGS += $(filter -m32 -m64 --ta 1052 1053 # make the checker run with the right archite 1054 CHECKFLAGS += --arch=$(ARCH) 1055 1056 # insure the checker run with the right endia 1057 CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),- 1058 1059 # the checker needs the correct machine size 1060 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1061 1062 # Default kernel image to build when no speci 1063 # KBUILD_IMAGE may be overruled on the comman 1064 # set in the environment 1065 # Also any assignments in arch/$(ARCH)/Makefi 1066 # this default value 1067 export KBUILD_IMAGE ?= vmlinux 1068 1069 # 1070 # INSTALL_PATH specifies where to place the u 1071 # images. Default is /boot, but you can set i 1072 export INSTALL_PATH ?= /boot 1073 1074 # 1075 # INSTALL_DTBS_PATH specifies a prefix for re 1076 # Like INSTALL_MOD_PATH, it isn't defined in 1077 # an argument if needed. Otherwise it default 1078 # 1079 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/d 1080 1081 # 1082 # INSTALL_MOD_PATH specifies a prefix to MODL 1083 # relocations required by build roots. This 1084 # makefile but the argument can be passed to 1085 # 1086 1087 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(K 1088 export MODLIB 1089 1090 PHONY += prepare0 1091 1092 export extmod_prefix = $(if $(KBUILD_EXTMOD), 1093 export MODORDER := $(extmod_prefix)modules.or 1094 export MODULES_NSDEPS := $(extmod_prefix)modu 1095 1096 ifeq ($(KBUILD_EXTMOD),) 1097 1098 build-dir := . 1099 clean-dirs := $(sort . Documentation \ 1100 $(patsubst %/,%,$(filter 1101 $(drivers-) $(libs-)) 1102 1103 export ARCH_CORE := $(core-y) 1104 export ARCH_LIB := $(filter %/, $(lib 1105 export ARCH_DRIVERS := $(drivers-y) $(dri 1106 # Externally visible symbols (used by link-vm 1107 1108 KBUILD_VMLINUX_OBJS := ./built-in.a 1109 ifdef CONFIG_MODULES 1110 KBUILD_VMLINUX_OBJS += $(patsubst %/, %/lib.a 1111 KBUILD_VMLINUX_LIBS := $(filter-out %/, $(lib 1112 else 1113 KBUILD_VMLINUX_LIBS := $(patsubst %/,%/lib.a, 1114 endif 1115 1116 export KBUILD_VMLINUX_LIBS 1117 export KBUILD_LDS := arch/$(SRCARCH) 1118 1119 ifdef CONFIG_TRIM_UNUSED_KSYMS 1120 # For the kernel to actually contain only the 1121 # we have to build modules as well to determi 1122 KBUILD_MODULES := 1 1123 endif 1124 1125 # '$(AR) mPi' needs 'T' to workaround the bug 1126 quiet_cmd_ar_vmlinux.a = AR $@ 1127 cmd_ar_vmlinux.a = \ 1128 rm -f $@; \ 1129 $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS 1130 $(AR) mPiT $$($(AR) t $@ | sed -n 1p) 1131 1132 targets += vmlinux.a 1133 vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/hea 1134 $(call if_changed,ar_vmlinux.a) 1135 1136 PHONY += vmlinux_o 1137 vmlinux_o: vmlinux.a $(KBUILD_VMLINUX_LIBS) 1138 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1139 1140 vmlinux.o modules.builtin.modinfo modules.bui 1141 @: 1142 1143 PHONY += vmlinux 1144 # LDFLAGS_vmlinux in the top Makefile defines 1145 # not for decompressors. LDFLAGS_vmlinux in a 1146 # unrelated; the decompressors just happen to 1147 # arch/*/boot/compressed/vmlinux. 1148 # Export LDFLAGS_vmlinux only to scripts/Make 1149 # 1150 # _LDFLAGS_vmlinux is a workaround for the 'p 1151 # https://savannah.gnu.org/bugs/?61463 1152 # For Make > 4.4, the following simple code w 1153 # vmlinux: private export LDFLAGS_vmlinux := 1154 vmlinux: private _LDFLAGS_vmlinux := $(LDFLAG 1155 vmlinux: export LDFLAGS_vmlinux = $(_LDFLAGS_ 1156 vmlinux: vmlinux.o $(KBUILD_LDS) modpost 1157 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1158 1159 # The actual objects are generated when desce 1160 # make sure no implicit rule kicks in 1161 $(sort $(KBUILD_LDS) $(KBUILD_VMLINUX_OBJS) $ 1162 1163 ifeq ($(origin KERNELRELEASE),file) 1164 filechk_kernel.release = $(srctree)/scripts/s 1165 else 1166 filechk_kernel.release = echo $(KERNELRELEASE 1167 endif 1168 1169 # Store (new) KERNELRELEASE string in include 1170 include/config/kernel.release: FORCE 1171 $(call filechk,kernel.release) 1172 1173 # Additional helpers built in scripts/ 1174 # Carefully list dependencies so we do not tr 1175 # in parallel 1176 PHONY += scripts 1177 scripts: scripts_basic scripts_dtc 1178 $(Q)$(MAKE) $(build)=$(@) 1179 1180 # Things we need to do before we recursively 1181 # or the modules are listed in "prepare". 1182 # A multi level approach is used. prepareN is 1183 # archprepare is used in arch Makefiles and w 1184 # version.h and scripts_basic is processed / 1185 1186 PHONY += prepare archprepare 1187 1188 archprepare: outputmakefile archheaders archs 1189 asm-generic $(version_h) include/gene 1190 include/generated/compile.h include/g 1191 1192 prepare0: archprepare 1193 $(Q)$(MAKE) $(build)=scripts/mod 1194 $(Q)$(MAKE) $(build)=. prepare 1195 1196 # All the preparing.. 1197 prepare: prepare0 1198 ifdef CONFIG_RUST 1199 +$(Q)$(CONFIG_SHELL) $(srctree)/scrip 1200 $(Q)$(MAKE) $(build)=rust 1201 endif 1202 1203 PHONY += remove-stale-files 1204 remove-stale-files: 1205 $(Q)$(srctree)/scripts/remove-stale-f 1206 1207 # Support for using generic headers in asm-ge 1208 asm-generic := -f $(srctree)/scripts/Makefile 1209 1210 PHONY += asm-generic uapi-asm-generic 1211 asm-generic: uapi-asm-generic 1212 $(Q)$(MAKE) $(asm-generic)=arch/$(SRC 1213 generic=include/asm-generic 1214 uapi-asm-generic: 1215 $(Q)$(MAKE) $(asm-generic)=arch/$(SRC 1216 generic=include/uapi/asm-generic 1217 1218 # Generate some files 1219 # ------------------------------------------- 1220 1221 # KERNELRELEASE can change from a few differe 1222 # needs to be updated, so this check is force 1223 1224 uts_len := 64 1225 define filechk_utsrelease.h 1226 if [ `echo -n "$(KERNELRELEASE)" | wc 1227 echo '"$(KERNELRELEASE)" exceeds $( 1228 exit 1; 1229 fi; 1230 echo \#define UTS_RELEASE \"$(KERNELR 1231 endef 1232 1233 define filechk_version.h 1234 if [ $(SUBLEVEL) -gt 255 ]; then 1235 echo \#define LINUX_VERSION_C 1236 expr $(VERSION) \* 65536 + $( 1237 else 1238 echo \#define LINUX_VERSION_C 1239 expr $(VERSION) \* 65536 + $( 1240 fi; 1241 echo '#define KERNEL_VERSION(a,b,c) ( 1242 ((c) > 255 ? 255 : (c)))'; 1243 echo \#define LINUX_VERSION_MAJOR $(V 1244 echo \#define LINUX_VERSION_PATCHLEVE 1245 echo \#define LINUX_VERSION_SUBLEVEL 1246 endef 1247 1248 $(version_h): private PATCHLEVEL := $(or $(PA 1249 $(version_h): private SUBLEVEL := $(or $(SUBL 1250 $(version_h): FORCE 1251 $(call filechk,version.h) 1252 1253 include/generated/utsrelease.h: include/confi 1254 $(call filechk,utsrelease.h) 1255 1256 filechk_compile.h = $(srctree)/scripts/mkcomp 1257 "$(UTS_MACHINE)" "$(CONFIG_CC_VERSION 1258 1259 include/generated/compile.h: FORCE 1260 $(call filechk,compile.h) 1261 1262 PHONY += headerdep 1263 headerdep: 1264 $(Q)find $(srctree)/include/ -name '* 1265 $(srctree)/scripts/headerdep.pl -I$(s 1266 1267 # ------------------------------------------- 1268 # Kernel headers 1269 1270 #Default location for installed headers 1271 export INSTALL_HDR_PATH = $(objtree)/usr 1272 1273 quiet_cmd_headers_install = INSTALL $(INSTALL 1274 cmd_headers_install = \ 1275 mkdir -p $(INSTALL_HDR_PATH); \ 1276 rsync -mrl --include='*/' --include=' 1277 usr/include $(INSTALL_HDR_PATH) 1278 1279 PHONY += headers_install 1280 headers_install: headers 1281 $(call cmd,headers_install) 1282 1283 PHONY += archheaders archscripts 1284 1285 hdr-inst := -f $(srctree)/scripts/Makefile.he 1286 1287 PHONY += headers 1288 headers: $(version_h) scripts_unifdef uapi-as 1289 $(if $(filter um, $(SRCARCH)), $(erro 1290 $(Q)$(MAKE) $(hdr-inst)=include/uapi 1291 $(Q)$(MAKE) $(hdr-inst)=arch/$(SRCARC 1292 1293 ifdef CONFIG_HEADERS_INSTALL 1294 prepare: headers 1295 endif 1296 1297 PHONY += scripts_unifdef 1298 scripts_unifdef: scripts_basic 1299 $(Q)$(MAKE) $(build)=scripts scripts/ 1300 1301 # ------------------------------------------- 1302 # Install 1303 1304 # Many distributions have the custom install 1305 # If DKMS is installed, 'make install' will e 1306 # to this Makefile to build and install exter 1307 # Cancel sub_make_done so that options such a 1308 1309 quiet_cmd_install = INSTALL $(INSTALL_PATH) 1310 cmd_install = unset sub_make_done; $(sr 1311 1312 # ------------------------------------------- 1313 # vDSO install 1314 1315 PHONY += vdso_install 1316 vdso_install: export INSTALL_FILES = $(vdso-i 1317 vdso_install: 1318 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1319 1320 # ------------------------------------------- 1321 # Tools 1322 1323 ifdef CONFIG_OBJTOOL 1324 prepare: tools/objtool 1325 endif 1326 1327 ifdef CONFIG_BPF 1328 ifdef CONFIG_DEBUG_INFO_BTF 1329 prepare: tools/bpf/resolve_btfids 1330 endif 1331 endif 1332 1333 # The tools build system is not a part of Kbu 1334 # its own unique issues. If you need to integ 1335 # please consider locating that tool outside 1336 # standard Kbuild "hostprogs" syntax instead 1337 # here. See Documentation/kbuild/makefiles.rs 1338 1339 PHONY += resolve_btfids_clean 1340 1341 resolve_btfids_O = $(abspath $(objtree))/tool 1342 1343 # tools/bpf/resolve_btfids directory might no 1344 # in output directory, skip its clean in that 1345 resolve_btfids_clean: 1346 ifneq ($(wildcard $(resolve_btfids_O)),) 1347 $(Q)$(MAKE) -sC $(srctree)/tools/bpf/ 1348 endif 1349 1350 # Clear a bunch of variables before executing 1351 ifeq ($(quiet),silent_) 1352 tools_silent=s 1353 endif 1354 1355 tools/: FORCE 1356 $(Q)mkdir -p $(objtree)/tools 1357 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(too 1358 1359 tools/%: FORCE 1360 $(Q)mkdir -p $(objtree)/tools 1361 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(too 1362 1363 # ------------------------------------------- 1364 # Kernel selftest 1365 1366 PHONY += kselftest 1367 kselftest: headers 1368 $(Q)$(MAKE) -C $(srctree)/tools/testi 1369 1370 kselftest-%: headers FORCE 1371 $(Q)$(MAKE) -C $(srctree)/tools/testi 1372 1373 PHONY += kselftest-merge 1374 kselftest-merge: 1375 $(if $(wildcard $(objtree)/.config),, 1376 $(Q)find $(srctree)/tools/testing/sel 1377 xargs $(srctree)/scripts/kcon 1378 $(Q)$(MAKE) -f $(srctree)/Makefile ol 1379 1380 # ------------------------------------------- 1381 # Devicetree files 1382 1383 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/ 1384 dtstree := arch/$(SRCARCH)/boot/dts 1385 endif 1386 1387 ifneq ($(dtstree),) 1388 1389 %.dtb: dtbs_prepare 1390 $(Q)$(MAKE) $(build)=$(dtstree) $(dts 1391 1392 %.dtbo: dtbs_prepare 1393 $(Q)$(MAKE) $(build)=$(dtstree) $(dts 1394 1395 PHONY += dtbs dtbs_prepare dtbs_install dtbs_ 1396 dtbs: dtbs_prepare 1397 $(Q)$(MAKE) $(build)=$(dtstree) need- 1398 1399 # include/config/kernel.release is actually n 1400 # INSTALL_DTBS_PATH contains $(KERNELRELEASE) 1401 # dtbs_install depend on it as dtbs_install m 1402 dtbs_prepare: include/config/kernel.release s 1403 1404 ifneq ($(filter dtbs_check, $(MAKECMDGOALS)), 1405 export CHECK_DTBS=y 1406 endif 1407 1408 ifneq ($(CHECK_DTBS),) 1409 dtbs_prepare: dt_binding_schemas 1410 endif 1411 1412 dtbs_check: dtbs 1413 1414 dtbs_install: 1415 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1416 1417 ifdef CONFIG_OF_EARLY_FLATTREE 1418 all: dtbs 1419 endif 1420 1421 endif 1422 1423 PHONY += scripts_dtc 1424 scripts_dtc: scripts_basic 1425 $(Q)$(MAKE) $(build)=scripts/dtc 1426 1427 ifneq ($(filter dt_binding_check, $(MAKECMDGO 1428 export CHECK_DTBS=y 1429 endif 1430 1431 PHONY += dt_binding_check dt_binding_schemas 1432 dt_binding_check: dt_binding_schemas scripts_ 1433 $(Q)$(MAKE) $(build)=Documentation/de 1434 1435 dt_binding_schemas: 1436 $(Q)$(MAKE) $(build)=Documentation/de 1437 1438 PHONY += dt_compatible_check 1439 dt_compatible_check: dt_binding_schemas 1440 $(Q)$(MAKE) $(build)=Documentation/de 1441 1442 # ------------------------------------------- 1443 # Modules 1444 1445 ifdef CONFIG_MODULES 1446 1447 # By default, build modules as well 1448 1449 all: modules 1450 1451 # When we're building modules with modversion 1452 # the built-in objects during the descend as 1453 # make sure the checksums are up to date befo 1454 ifdef CONFIG_MODVERSIONS 1455 KBUILD_BUILTIN := 1 1456 endif 1457 1458 # Build modules 1459 # 1460 1461 # *.ko are usually independent of vmlinux, bu 1462 # is an exception. 1463 ifdef CONFIG_DEBUG_INFO_BTF_MODULES 1464 KBUILD_BUILTIN := 1 1465 modules: vmlinux 1466 endif 1467 1468 modules: modules_prepare 1469 1470 # Target to prepare building external modules 1471 modules_prepare: prepare 1472 $(Q)$(MAKE) $(build)=scripts scripts/ 1473 1474 endif # CONFIG_MODULES 1475 1476 ### 1477 # Cleaning is done on three levels. 1478 # make clean Delete most generated files 1479 # Leave enough to build extern 1480 # make mrproper Delete the current configura 1481 # make distclean Remove editor backup files, 1482 1483 # Directories & files removed with 'make clea 1484 CLEAN_FILES += vmlinux.symvers modules-only.s 1485 modules.builtin modules.builti 1486 compile_commands.json rust/tes 1487 rust-project.json .vmlinux.obj 1488 1489 # Directories & files removed with 'make mrpr 1490 MRPROPER_FILES += include/config include/gene 1491 arch/$(SRCARCH)/include/gen 1492 debian snap tar-install PKG 1493 .config .config.old .versio 1494 Module.symvers \ 1495 certs/signing_key.pem \ 1496 certs/x509.genkey \ 1497 vmlinux-gdb.py \ 1498 rpmbuild \ 1499 rust/libmacros.so 1500 1501 # clean - Delete most, but leave enough to bu 1502 # 1503 clean: private rm-files := $(CLEAN_FILES) 1504 1505 PHONY += archclean vmlinuxclean 1506 1507 vmlinuxclean: 1508 $(Q)$(CONFIG_SHELL) $(srctree)/script 1509 $(Q)$(if $(ARCH_POSTLINK), $(MAKE) -f 1510 1511 clean: archclean vmlinuxclean resolve_btfids_ 1512 1513 # mrproper - Delete all generated files, incl 1514 # 1515 mrproper: private rm-files := $(MRPROPER_FILE 1516 mrproper-dirs := $(addprefix _mrproper_, 1517 1518 PHONY += $(mrproper-dirs) mrproper 1519 $(mrproper-dirs): 1520 $(Q)$(MAKE) $(clean)=$(patsubst _mrpr 1521 1522 mrproper: clean $(mrproper-dirs) 1523 $(call cmd,rmfiles) 1524 @find . $(RCS_FIND_IGNORE) \ 1525 \( -name '*.rmeta' \) \ 1526 -type f -print | xargs rm -f 1527 1528 # distclean 1529 # 1530 PHONY += distclean 1531 1532 distclean: mrproper 1533 @find . $(RCS_FIND_IGNORE) \ 1534 \( -name '*.orig' -o -name '* 1535 -o -name '*.bak' -o -name '#* 1536 -o -name 'core' -o -name tags 1537 -o -name GPATH -o -name GRTAG 1538 -type f -print | xargs rm -f 1539 1540 1541 # Packaging of the kernel to various formats 1542 # ------------------------------------------- 1543 1544 %src-pkg: FORCE 1545 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1546 %pkg: include/config/kernel.release FORCE 1547 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1548 1549 # Brief documentation of the typical targets 1550 # ------------------------------------------- 1551 1552 boards := $(wildcard $(srctree)/arch/$(SRCARC 1553 boards := $(sort $(notdir $(boards))) 1554 board-dirs := $(dir $(wildcard $(srctree)/arc 1555 board-dirs := $(sort $(notdir $(board-dirs:/= 1556 1557 PHONY += help 1558 help: 1559 @echo 'Cleaning targets:' 1560 @echo ' clean - Remove mo 1561 @echo ' enough bu 1562 @echo ' mrproper - Remove al 1563 @echo ' distclean - mrproper 1564 @echo '' 1565 @$(MAKE) -f $(srctree)/scripts/kconfi 1566 @echo '' 1567 @echo 'Other generic targets:' 1568 @echo ' all - Build all 1569 @echo '* vmlinux - Build the 1570 @echo '* modules - Build all 1571 @echo ' modules_install - Install a 1572 @echo ' vdso_install - Install u 1573 @echo ' dir/ - Build all 1574 @echo ' dir/file.[ois] - Build spe 1575 @echo ' dir/file.ll - Build the 1576 @echo ' (requires 1577 @echo ' dir/file.lst - Build spe 1578 @echo ' (requires 1579 @echo ' dir/file.ko - Build mod 1580 @echo ' modules_prepare - Set up fo 1581 @echo ' tags/TAGS - Generate 1582 @echo ' cscope - Generate 1583 @echo ' gtags - Generate 1584 @echo ' kernelrelease - Output th 1585 @echo ' kernelversion - Output th 1586 @echo ' image_name - Output th 1587 @echo ' headers_install - Install s 1588 echo ' (default: 1589 echo '' 1590 @echo 'Static analysers:' 1591 @echo ' checkstack - Generate 1592 @echo ' with a st 1593 @echo ' versioncheck - Sanity ch 1594 @echo ' includecheck - Check for 1595 @echo ' export_report - List the 1596 @echo ' headerdep - Detect in 1597 @echo ' coccicheck - Check wit 1598 @echo ' clang-analyzer - Check wit 1599 @echo ' clang-tidy - Check wit 1600 @echo '' 1601 @echo 'Tools:' 1602 @echo ' nsdeps - Generate 1603 @echo '' 1604 @echo 'Kernel selftest:' 1605 @echo ' kselftest - Build a 1606 @echo ' Build, 1607 @echo ' running 1608 @echo ' Run as 1609 @echo ' kselftest-all - Build k 1610 @echo ' kselftest-install - Build a 1611 @echo ' kselftest-clean - Remove 1612 @echo ' kselftest-merge - Merge a 1613 @echo ' kselfte 1614 @echo '' 1615 @echo 'Rust targets:' 1616 @echo ' rustavailable - Checks wh 1617 @echo ' available 1618 @echo ' rustfmt - Reformat 1619 @echo ' rustfmtcheck - Checks if 1620 @echo ' is format 1621 @echo ' rustdoc - Generate 1622 @echo ' (requires 1623 @echo ' rusttest - Runs the 1624 @echo ' (requires 1625 @echo ' rust-analyzer - Generate 1626 @echo ' (requires 1627 @echo ' dir/file.[os] - Build spe 1628 @echo ' dir/file.rsi - Build mac 1629 @echo ' Run with 1630 @echo ' The outpu 1631 @echo ' dir/file.ll - Build the 1632 @echo '' 1633 @$(if $(dtstree), \ 1634 echo 'Devicetree:'; \ 1635 echo '* dtbs - 1636 echo ' dtbs_install - 1637 echo ' dt_binding_check - 1638 echo ' dt_binding_schema - 1639 echo ' dtbs_check - 1640 echo '') 1641 1642 @echo 'Userspace tools targets:' 1643 @echo ' use "make tools/help"' 1644 @echo ' or "cd tools; make help"' 1645 @echo '' 1646 @echo 'Kernel packaging:' 1647 @$(MAKE) -f $(srctree)/scripts/Makefi 1648 @echo '' 1649 @echo 'Documentation targets:' 1650 @$(MAKE) -f $(srctree)/Documentation/ 1651 @echo '' 1652 @echo 'Architecture-specific targets 1653 @$(or $(archhelp),\ 1654 echo ' No architecture-speci 1655 @echo '' 1656 @$(if $(boards), \ 1657 $(foreach b, $(boards), \ 1658 printf " %-27s - Build for % 1659 echo '') 1660 @$(if $(board-dirs), \ 1661 $(foreach b, $(board-dirs), \ 1662 printf " %-16s - Show %s-spe 1663 printf " %-16s - Show all of 1664 echo '') 1665 1666 @echo ' make V=n [targets] 1: ver 1667 @echo ' 2: giv 1668 @echo ' V=1 an 1669 @echo ' make O=dir [targets] Locate 1670 @echo ' make C=1 [targets] Check 1671 @echo ' (spars 1672 @echo ' make C=2 [targets] Force 1673 @echo ' make RECORDMCOUNT_WARN=1 [t 1674 @echo ' make W=n [targets] Enable 1675 @echo ' 1: warnings w 1676 @echo ' 2: warnings w 1677 @echo ' 3: more obscu 1678 @echo ' c: extra chec 1679 @echo ' e: warnings a 1680 @echo ' Multiple leve 1681 @$(if $(dtstree), \ 1682 echo ' make CHECK_DTBS=1 [ta 1683 echo ' This can be ap 1684 ) 1685 @echo '' 1686 @echo 'Execute "make" or "make all" 1687 @echo 'For further info see the ./RE 1688 1689 1690 help-board-dirs := $(addprefix help-,$(board- 1691 1692 help-boards: $(help-board-dirs) 1693 1694 boards-per-dir = $(sort $(notdir $(wildcard $ 1695 1696 $(help-board-dirs): help-%: 1697 @echo 'Architecture-specific targets 1698 @$(if $(boards-per-dir), \ 1699 $(foreach b, $(boards-per-dir 1700 printf " %-24s - Build for % 1701 echo '') 1702 1703 1704 # Documentation targets 1705 # ------------------------------------------- 1706 DOC_TARGETS := xmldocs latexdocs pdfdocs html 1707 linkcheckdocs dochelp refcheck 1708 PHONY += $(DOC_TARGETS) 1709 $(DOC_TARGETS): 1710 $(Q)$(MAKE) $(build)=Documentation $@ 1711 1712 1713 # Rust targets 1714 # ------------------------------------------- 1715 1716 # "Is Rust available?" target 1717 PHONY += rustavailable 1718 rustavailable: 1719 +$(Q)$(CONFIG_SHELL) $(srctree)/scrip 1720 1721 # Documentation target 1722 # 1723 # Using the singular to avoid running afoul o 1724 PHONY += rustdoc 1725 rustdoc: prepare 1726 $(Q)$(MAKE) $(build)=rust $@ 1727 1728 # Testing target 1729 PHONY += rusttest 1730 rusttest: prepare 1731 $(Q)$(MAKE) $(build)=rust $@ 1732 1733 # Formatting targets 1734 PHONY += rustfmt rustfmtcheck 1735 1736 # We skip `rust/alloc` since we want to minim 1737 # 1738 # We match using absolute paths since `find` 1739 # when matching, which is a problem when e.g. 1740 # We `grep` afterwards in order to remove the 1741 rustfmt: 1742 $(Q)find $(abs_srctree) -type f -name 1743 -o -path $(abs_srctree)/rust/ 1744 -o -path $(abs_objtree)/rust/ 1745 | grep -Fv $(abs_srctree)/rus 1746 | grep -Fv $(abs_objtree)/rus 1747 | grep -Fv generated \ 1748 | xargs $(RUSTFMT) $(rustfmt_ 1749 1750 rustfmtcheck: rustfmt_flags = --check 1751 rustfmtcheck: rustfmt 1752 1753 # Misc 1754 # ------------------------------------------- 1755 1756 PHONY += misc-check 1757 misc-check: 1758 $(Q)$(srctree)/scripts/misc-check 1759 1760 all: misc-check 1761 1762 PHONY += scripts_gdb 1763 scripts_gdb: prepare0 1764 $(Q)$(MAKE) $(build)=scripts/gdb 1765 $(Q)ln -fsn $(abspath $(srctree)/scri 1766 1767 ifdef CONFIG_GDB_SCRIPTS 1768 all: scripts_gdb 1769 endif 1770 1771 else # KBUILD_EXTMOD 1772 1773 filechk_kernel.release = echo $(KERNELRELEASE 1774 1775 ### 1776 # External module support. 1777 # When building external modules the kernel u 1778 # read-only, and no consistency checks are ma 1779 # system is not used on the basis kernel. If 1780 # in the basis kernel ordinary make commands 1781 1782 # We are always building only modules. 1783 KBUILD_BUILTIN := 1784 KBUILD_MODULES := 1 1785 1786 build-dir := $(KBUILD_EXTMOD) 1787 1788 compile_commands.json: $(extmod_prefix)compil 1789 PHONY += compile_commands.json 1790 1791 clean-dirs := $(KBUILD_EXTMOD) 1792 clean: private rm-files := $(KBUILD_EXTMOD)/M 1793 $(KBUILD_EXTMOD)/compile_commands.jso 1794 1795 PHONY += prepare 1796 # now expand this into a simple variable to r 1797 prepare: CC_VERSION_TEXT := $(CC_VERSION_TEXT 1798 prepare: 1799 @if [ "$(CC_VERSION_TEXT)" != "$(CONF 1800 echo >&2 "warning: the compil 1801 echo >&2 " The kernel was bu 1802 echo >&2 " You are using: 1803 fi 1804 1805 PHONY += help 1806 help: 1807 @echo ' Building external modules.' 1808 @echo ' Syntax: make -C path/to/ker 1809 @echo '' 1810 @echo ' modules - default t 1811 @echo ' modules_install - install t 1812 @echo ' clean - remove ge 1813 @echo ' rust-analyzer - generate 1814 @echo '' 1815 1816 ifndef CONFIG_MODULES 1817 modules modules_install: __external_modules_e 1818 __external_modules_error: 1819 @echo >&2 '***' 1820 @echo >&2 '*** The present kernel dis 1821 @echo >&2 '*** You cannot build or in 1822 @echo >&2 '***' 1823 @false 1824 endif 1825 1826 endif # KBUILD_EXTMOD 1827 1828 # ------------------------------------------- 1829 # Modules 1830 1831 PHONY += modules modules_install modules_sign 1832 1833 modules_install: 1834 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1835 sign-only=$(if $(filter modules_insta 1836 1837 ifeq ($(CONFIG_MODULE_SIG),y) 1838 # modules_sign is a subset of modules_install 1839 # 'make modules_install modules_sign' is equi 1840 modules_sign: modules_install 1841 @: 1842 else 1843 modules_sign: 1844 @echo >&2 '***' 1845 @echo >&2 '*** CONFIG_MODULE_SIG is d 1846 @echo >&2 '***' 1847 @false 1848 endif 1849 1850 ifdef CONFIG_MODULES 1851 1852 $(MODORDER): $(build-dir) 1853 @: 1854 1855 # KBUILD_MODPOST_NOFINAL can be set to skip t 1856 # This is solely useful to speed up test comp 1857 modules: modpost 1858 ifneq ($(KBUILD_MODPOST_NOFINAL),1) 1859 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1860 endif 1861 1862 PHONY += modules_check 1863 modules_check: $(MODORDER) 1864 $(Q)$(CONFIG_SHELL) $(srctree)/script 1865 1866 else # CONFIG_MODULES 1867 1868 modules: 1869 @: 1870 1871 KBUILD_MODULES := 1872 1873 endif # CONFIG_MODULES 1874 1875 PHONY += modpost 1876 modpost: $(if $(single-build),, $(if $(KBUILD 1877 $(if $(KBUILD_MODULES), modules_chec 1878 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1879 1880 # Single targets 1881 # ------------------------------------------- 1882 # To build individual files in subdirectories 1883 # 1884 # make foo/bar/baz.s 1885 # 1886 # The supported suffixes for single-target ar 1887 # 1888 # To build only under specific subdirectories 1889 # 1890 # make foo/bar/baz/ 1891 1892 ifdef single-build 1893 1894 # .ko is special because modpost is needed 1895 single-ko := $(sort $(filter %.ko, $(MAKECMDG 1896 single-no-ko := $(filter-out $(single-ko), $( 1897 $(foreach x, o mod, $(patsubs 1898 1899 $(single-ko): single_modules 1900 @: 1901 $(single-no-ko): $(build-dir) 1902 @: 1903 1904 # Remove MODORDER when done because it is not 1905 PHONY += single_modules 1906 single_modules: $(single-no-ko) modules_prepa 1907 $(Q){ $(foreach m, $(single-ko), echo 1908 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1909 ifneq ($(KBUILD_MODPOST_NOFINAL),1) 1910 $(Q)$(MAKE) -f $(srctree)/scripts/Mak 1911 endif 1912 $(Q)rm -f $(MODORDER) 1913 1914 single-goals := $(addprefix $(build-dir)/, $( 1915 1916 KBUILD_MODULES := 1 1917 1918 endif 1919 1920 # Preset locale variables to speed up the bui 1921 # tweaks to this spot to avoid wrong language 1922 # make menuconfig etc. 1923 # Error messages still appears in the origina 1924 PHONY += $(build-dir) 1925 $(build-dir): prepare 1926 $(Q)$(MAKE) $(build)=$@ need-builtin= 1927 1928 clean-dirs := $(addprefix _clean_, $(clean-di 1929 PHONY += $(clean-dirs) clean 1930 $(clean-dirs): 1931 $(Q)$(MAKE) $(clean)=$(patsubst _clea 1932 1933 clean: $(clean-dirs) 1934 $(call cmd,rmfiles) 1935 @find $(or $(KBUILD_EXTMOD), .) $(RCS 1936 \( -name '*.[aios]' -o -name 1937 -o -name '*.ko.*' \ 1938 -o -name '*.dtb' -o -name '*. 1939 -o -name '*.dtb.S' -o -name ' 1940 -o -name '*.dt.yaml' -o -name 1941 -o -name '*.dwo' -o -name '*. 1942 -o -name '*.su' -o -name '*.m 1943 -o -name '.*.d' -o -name '.*. 1944 -o -name '*.lex.c' -o -name ' 1945 -o -name '*.asn1.[ch]' \ 1946 -o -name '*.symtypes' -o -nam 1947 -o -name '*.c.[012]*.*' \ 1948 -o -name '*.ll' \ 1949 -o -name '*.gcno' \ 1950 -o -name '*.*.symversions' \) 1951 -o -name '.tmp_*' -print \ 1952 | xargs rm -rf 1953 1954 # Generate tags for editors 1955 # ------------------------------------------- 1956 quiet_cmd_tags = GEN $@ 1957 cmd_tags = $(BASH) $(srctree)/scripts/t 1958 1959 tags TAGS cscope gtags: FORCE 1960 $(call cmd,tags) 1961 1962 # Generate rust-project.json (a file that des 1963 # Rust projects) for rust-analyzer (an implem 1964 # Protocol). 1965 PHONY += rust-analyzer 1966 rust-analyzer: 1967 +$(Q)$(CONFIG_SHELL) $(srctree)/scrip 1968 $(Q)$(MAKE) $(build)=rust $@ 1969 1970 # Script to generate missing namespace depend 1971 # ------------------------------------------- 1972 1973 PHONY += nsdeps 1974 nsdeps: export KBUILD_NSDEPS=1 1975 nsdeps: modules 1976 $(Q)$(CONFIG_SHELL) $(srctree)/script 1977 1978 # Clang Tooling 1979 # ------------------------------------------- 1980 1981 quiet_cmd_gen_compile_commands = GEN $@ 1982 cmd_gen_compile_commands = $(PYTHON3) $ 1983 1984 $(extmod_prefix)compile_commands.json: $(srct 1985 $(if $(KBUILD_EXTMOD),, vmlinux.a $(K 1986 $(if $(CONFIG_MODULES), $(MODORDER)) 1987 $(call if_changed,gen_compile_command 1988 1989 targets += $(extmod_prefix)compile_commands.j 1990 1991 PHONY += clang-tidy clang-analyzer 1992 1993 ifdef CONFIG_CC_IS_CLANG 1994 quiet_cmd_clang_tools = CHECK $< 1995 cmd_clang_tools = $(PYTHON3) $(srctree) 1996 1997 clang-tidy clang-analyzer: $(extmod_prefix)co 1998 $(call cmd,clang_tools) 1999 else 2000 clang-tidy clang-analyzer: 2001 @echo "$@ requires CC=clang" >&2 2002 @false 2003 endif 2004 2005 # Scripts to check various things for consist 2006 # ------------------------------------------- 2007 2008 PHONY += includecheck versioncheck coccicheck 2009 2010 includecheck: 2011 find $(srctree)/* $(RCS_FIND_IGNORE) 2012 -name '*.[hcS]' -type f -prin 2013 | xargs $(PERL) -w $(srctree) 2014 2015 versioncheck: 2016 find $(srctree)/* $(RCS_FIND_IGNORE) 2017 -name '*.[hcS]' -type f -prin 2018 | xargs $(PERL) -w $(srctree) 2019 2020 coccicheck: 2021 $(Q)$(BASH) $(srctree)/scripts/$@ 2022 2023 export_report: 2024 $(PERL) $(srctree)/scripts/export_rep 2025 2026 PHONY += checkstack kernelrelease kernelversi 2027 2028 # UML needs a little special treatment here. 2029 # toolchain, so needs $(SUBARCH) passed to ch 2030 # else wants $(ARCH), including people doing 2031 # that $(SUBARCH) doesn't work here. 2032 ifeq ($(ARCH), um) 2033 CHECKSTACK_ARCH := $(SUBARCH) 2034 else 2035 CHECKSTACK_ARCH := $(ARCH) 2036 endif 2037 MINSTACKSIZE ?= 100 2038 checkstack: 2039 $(OBJDUMP) -d vmlinux $$(find . -name 2040 $(PERL) $(srctree)/scripts/checkstack 2041 2042 kernelrelease: 2043 @$(filechk_kernel.release) 2044 2045 kernelversion: 2046 @echo $(KERNELVERSION) 2047 2048 image_name: 2049 @echo $(KBUILD_IMAGE) 2050 2051 PHONY += run-command 2052 run-command: 2053 $(Q)$(KBUILD_RUN_COMMAND) 2054 2055 quiet_cmd_rmfiles = $(if $(wildcard $(rm-file 2056 cmd_rmfiles = rm -rf $(rm-files) 2057 2058 # read saved command lines for existing targe 2059 existing-targets := $(wildcard $(sort $(targe 2060 2061 -include $(foreach f,$(existing-targets),$(di 2062 2063 endif # config-build 2064 endif # mixed-build 2065 endif # need-sub-make 2066 2067 PHONY += FORCE 2068 FORCE: 2069 2070 # Declare the contents of the PHONY variable 2071 # information in a variable so we can use it 2072 .PHONY: $(PHONY)
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