1 # 2 # SPDX-License-Identifier: GPL-2.0+ 3 # 4 5 VERSION = 2017 6 PATCHLEVEL = 01 7 SUBLEVEL = 8 EXTRAVERSION = 9 NAME = 10 11 # *DOCUMENTATION* 12 # To see a list of typical targets execute "make help" 13 # More info can be located in ./README 14 # Comments in this file are targeted only to the developer, do not 15 # expect to learn how to build the kernel reading this file. 16 17 # o Do not use make's built-in rules and variables 18 # (this increases performance and avoids hard-to-debug behaviour); 19 # o Look for make include files relative to root of kernel src 20 MAKEFLAGS += -rR --include-dir=$(CURDIR) 21 22 # Avoid funny character set dependencies 23 unexport LC_ALL 24 LC_COLLATE=C 25 LC_NUMERIC=C 26 export LC_COLLATE LC_NUMERIC 27 28 # Avoid interference with shell env settings 29 unexport GREP_OPTIONS 30 31 # We are using a recursive build, so we need to do a little thinking 32 # to get the ordering right. 33 # 34 # Most importantly: sub-Makefiles should only ever modify files in 35 # their own directory. If in some directory we have a dependency on 36 # a file in another dir (which doesn't happen often, but it's often 37 # unavoidable when linking the built-in.o targets which finally 38 # turn into vmlinux), we will call a sub make in that other dir, and 39 # after that we are sure that everything which is in that other dir 40 # is now up to date. 41 # 42 # The only cases where we need to modify files which have global 43 # effects are thus separated out and done before the recursive 44 # descending is started. They are now explicitly listed as the 45 # prepare rule. 46 47 # Beautify output 48 # --------------------------------------------------------------------------- 49 # 50 # Normally, we echo the whole command before executing it. By making 51 # that echo $($(quiet)$(cmd)), we now have the possibility to set 52 # $(quiet) to choose other forms of output instead, e.g. 53 # 54 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 55 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 56 # 57 # If $(quiet) is empty, the whole command will be printed. 58 # If it is set to "quiet_", only the short version will be printed. 59 # If it is set to "silent_", nothing will be printed at all, since 60 # the variable $(silent_cmd_cc_o_c) doesn't exist. 61 # 62 # A simple variant is to prefix commands with $(Q) - that's useful 63 # for commands that shall be hidden in non-verbose mode. 64 # 65 # $(Q)ln $@ :< 66 # 67 # If KBUILD_VERBOSE equals 0 then the above command will be hidden. 68 # If KBUILD_VERBOSE equals 1 then the above command is displayed. 69 # 70 # To put more focus on warnings, be less verbose as default 71 # Use 'make V=1' to see the full commands 72 73 ifeq ("$(origin V)", "command line") 74 KBUILD_VERBOSE = $(V) 75 endif 76 ifndef KBUILD_VERBOSE 77 KBUILD_VERBOSE = 0 78 endif 79 80 ifeq ($(KBUILD_VERBOSE),1) 81 quiet = 82 Q = 83 else 84 quiet=quiet_ 85 Q = @ 86 endif 87 88 # If the user is running make -s (silent mode), suppress echoing of 89 # commands 90 91 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 92 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 93 quiet=silent_ 94 endif 95 else # make-3.8x 96 ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 97 quiet=silent_ 98 endif 99 endif 100 101 export quiet Q KBUILD_VERBOSE 102 103 # kbuild supports saving output files in a separate directory. 104 # To locate output files in a separate directory two syntaxes are supported. 105 # In both cases the working directory must be the root of the kernel src. 106 # 1) O= 107 # Use "make O=dir/to/store/output/files/" 108 # 109 # 2) Set KBUILD_OUTPUT 110 # Set the environment variable KBUILD_OUTPUT to point to the directory 111 # where the output files shall be placed. 112 # export KBUILD_OUTPUT=dir/to/store/output/files/ 113 # make 114 # 115 # The O= assignment takes precedence over the KBUILD_OUTPUT environment 116 # variable. 117 118 # KBUILD_SRC is set on invocation of make in OBJ directory 119 # KBUILD_SRC is not intended to be used by the regular user (for now) 120 ifeq ($(KBUILD_SRC),) 121 122 # OK, Make called in directory where kernel src resides 123 # Do we want to locate output files in a separate directory? 124 ifeq ("$(origin O)", "command line") 125 KBUILD_OUTPUT := $(O) 126 endif 127 128 # That's our default target when none is given on the command line 129 PHONY := _all 130 _all: 131 132 # Cancel implicit rules on top Makefile 133 $(CURDIR)/Makefile Makefile: ; 134 135 ifneq ($(KBUILD_OUTPUT),) 136 # Invoke a second make in the output directory, passing relevant variables 137 # check that the output directory actually exists 138 saved-output := $(KBUILD_OUTPUT) 139 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 140 && /bin/pwd) 141 $(if $(KBUILD_OUTPUT),, \ 142 $(error failed to create output directory "$(saved-output)")) 143 144 PHONY += $(MAKECMDGOALS) sub-make 145 146 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 147 @: 148 149 sub-make: FORCE 150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 152 153 # Leave processing to above invocation of make 154 skip-makefile := 1 155 endif # ifneq ($(KBUILD_OUTPUT),) 156 endif # ifeq ($(KBUILD_SRC),) 157 158 # We process the rest of the Makefile if this is the final invocation of make 159 ifeq ($(skip-makefile),) 160 161 # Do not print "Entering directory ...", 162 # but we want to display it when entering to the output directory 163 # so that IDEs/editors are able to understand relative filenames. 164 MAKEFLAGS += --no-print-directory 165 166 # Call a source code checker (by default, "sparse") as part of the 167 # C compilation. 168 # 169 # Use 'make C=1' to enable checking of only re-compiled files. 170 # Use 'make C=2' to enable checking of *all* source files, regardless 171 # of whether they are re-compiled or not. 172 # 173 # See the file "Documentation/sparse.txt" for more details, including 174 # where to get the "sparse" utility. 175 176 ifeq ("$(origin C)", "command line") 177 KBUILD_CHECKSRC = $(C) 178 endif 179 ifndef KBUILD_CHECKSRC 180 KBUILD_CHECKSRC = 0 181 endif 182 183 # Use make M=dir to specify directory of external module to build 184 # Old syntax make ... SUBDIRS=$PWD is still supported 185 # Setting the environment variable KBUILD_EXTMOD take precedence 186 ifdef SUBDIRS 187 KBUILD_EXTMOD ?= $(SUBDIRS) 188 endif 189 190 ifeq ("$(origin M)", "command line") 191 KBUILD_EXTMOD := $(M) 192 endif 193 194 # If building an external module we do not care about the all: rule 195 # but instead _all depend on modules 196 PHONY += all 197 ifeq ($(KBUILD_EXTMOD),) 198 _all: all 199 else 200 _all: modules 201 endif 202 203 ifeq ($(KBUILD_SRC),) 204 # building in the source tree 205 srctree := . 206 else 207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 # building in a subdirectory of the source tree 209 srctree := .. 210 else 211 srctree := $(KBUILD_SRC) 212 endif 213 endif 214 objtree := . 215 src := $(srctree) 216 obj := $(objtree) 217 218 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 220 export srctree objtree VPATH 221 222 # Make sure CDPATH settings don't interfere 223 unexport CDPATH 224 225 ######################################################################### 226 227 HOSTARCH := $(shell uname -m | \ 228 sed -e s/i.86/x86/ \ 229 -e s/sun4u/sparc64/ \ 230 -e s/arm.*/arm/ \ 231 -e s/sa110/arm/ \ 232 -e s/ppc64/powerpc/ \ 233 -e s/ppc/powerpc/ \ 234 -e s/macppc/powerpc/\ 235 -e s/sh.*/sh/) 236 237 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 238 sed -e 's/\(cygwin\).*/cygwin/') 239 240 export HOSTARCH HOSTOS 241 242 ######################################################################### 243 244 # set default to nothing for native builds 245 ifeq ($(HOSTARCH),$(ARCH)) 246 CROSS_COMPILE ?= 247 endif 248 249 KCONFIG_CONFIG ?= .config 250 export KCONFIG_CONFIG 251 252 # SHELL used by kbuild 253 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 254 else if [ -x /bin/bash ]; then echo /bin/bash; \ 255 else echo sh; fi ; fi) 256 257 HOSTCC = cc 258 HOSTCXX = c++ 259 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 260 $(if $(CONFIG_TOOLS_DEBUG),-g) 261 HOSTCXXFLAGS = -O2 262 263 ifeq ($(HOSTOS),cygwin) 264 HOSTCFLAGS += -ansi 265 endif 266 267 # Mac OS X / Darwin's C preprocessor is Apple specific. It 268 # generates numerous errors and warnings. We want to bypass it 269 # and use GNU C's cpp. To do this we pass the -traditional-cpp 270 # option to the compiler. Note that the -traditional-cpp flag 271 # DOES NOT have the same semantics as GNU C's flag, all it does 272 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 273 # 274 # Apple's linker is similar, thanks to the new 2 stage linking 275 # multiple symbol definitions are treated as errors, hence the 276 # -multiply_defined suppress option to turn off this error. 277 # 278 ifeq ($(HOSTOS),darwin) 279 # get major and minor product version (e.g. '10' and '6' for Snow Leopard) 280 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 281 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 282 283 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 285 286 # Snow Leopards build environment has no longer restrictions as described above 287 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 288 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 289 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 290 291 # since Lion (10.7) ASLR is on by default, but we use linker generated lists 292 # in some host tools which is a problem then ... so disable ASLR for these 293 # tools 294 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 295 endif 296 297 # Decide whether to build built-in, modular, or both. 298 # Normally, just do built-in. 299 300 KBUILD_MODULES := 301 KBUILD_BUILTIN := 1 302 303 # If we have only "make modules", don't compile built-in objects. 304 # When we're building modules with modversions, we need to consider 305 # the built-in objects during the descend as well, in order to 306 # make sure the checksums are up to date before we record them. 307 308 ifeq ($(MAKECMDGOALS),modules) 309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 310 endif 311 312 # If we have "make <whatever> modules", compile modules 313 # in addition to whatever we do anyway. 314 # Just "make" or "make all" shall build modules as well 315 316 # U-Boot does not need modules 317 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 318 # KBUILD_MODULES := 1 319 #endif 320 321 #ifeq ($(MAKECMDGOALS),) 322 # KBUILD_MODULES := 1 323 #endif 324 325 export KBUILD_MODULES KBUILD_BUILTIN 326 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 327 328 # We need some generic definitions (do not try to remake the file). 329 scripts/Kbuild.include: ; 330 include scripts/Kbuild.include 331 332 # Make variables (CC, etc...) 333 334 AS = $(CROSS_COMPILE)as 335 # Always use GNU ld 336 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 337 LD = $(CROSS_COMPILE)ld.bfd 338 else 339 LD = $(CROSS_COMPILE)ld 340 endif 341 CC = $(CROSS_COMPILE)gcc 342 CPP = $(CC) -E 343 AR = $(CROSS_COMPILE)ar 344 NM = $(CROSS_COMPILE)nm 345 LDR = $(CROSS_COMPILE)ldr 346 STRIP = $(CROSS_COMPILE)strip 347 OBJCOPY = $(CROSS_COMPILE)objcopy 348 OBJDUMP = $(CROSS_COMPILE)objdump 349 AWK = awk 350 PERL = perl 351 PYTHON = python 352 DTC = dtc 353 CHECK = sparse 354 355 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 357 358 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 359 360 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 361 -Wno-format-security \ 362 -fno-builtin -ffreestanding 363 KBUILD_AFLAGS := -D__ASSEMBLY__ 364 365 # Read UBOOTRELEASE from include/config/uboot.release (if it exists) 366 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 367 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 368 369 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 370 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 371 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 372 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 373 export MAKE AWK PERL PYTHON 374 export HOSTCXX HOSTCXXFLAGS DTC CHECK CHECKFLAGS 375 376 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 377 export KBUILD_CFLAGS KBUILD_AFLAGS 378 379 # When compiling out-of-tree modules, put MODVERDIR in the module 380 # tree rather than in the kernel tree. The kernel tree might 381 # even be read-only. 382 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 383 384 # Files to ignore in find ... statements 385 386 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 387 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 388 -prune -o 389 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 390 --exclude CVS --exclude .pc --exclude .hg --exclude .git 391 392 # =========================================================================== 393 # Rules shared between *config targets and build targets 394 395 # Basic helpers built in scripts/ 396 PHONY += scripts_basic 397 scripts_basic: 398 $(Q)$(MAKE) $(build)=scripts/basic 399 $(Q)rm -f .tmp_quiet_recordmcount 400 401 # To avoid any implicit rule to kick in, define an empty command. 402 scripts/basic/%: scripts_basic ; 403 404 PHONY += outputmakefile 405 # outputmakefile generates a Makefile in the output directory, if using a 406 # separate output directory. This allows convenient use of make in the 407 # output directory. 408 outputmakefile: 409 ifneq ($(KBUILD_SRC),) 410 $(Q)ln -fsn $(srctree) source 411 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 412 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 413 endif 414 415 # To make sure we do not include .config for any of the *config targets 416 # catch them early, and hand them over to scripts/kconfig/Makefile 417 # It is allowed to specify more targets when calling make, including 418 # mixing *config targets and build targets. 419 # For example 'make oldconfig all'. 420 # Detect when mixed targets is specified, and make a second invocation 421 # of make so .config is not included in this case either (for *config). 422 423 version_h := include/generated/version_autogenerated.h 424 timestamp_h := include/generated/timestamp_autogenerated.h 425 426 no-dot-config-targets := clean clobber mrproper distclean \ 427 help %docs check% coccicheck \ 428 ubootversion backup tests 429 430 config-targets := 0 431 mixed-targets := 0 432 dot-config := 1 433 434 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 435 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 436 dot-config := 0 437 endif 438 endif 439 440 ifeq ($(KBUILD_EXTMOD),) 441 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 442 config-targets := 1 443 ifneq ($(words $(MAKECMDGOALS)),1) 444 mixed-targets := 1 445 endif 446 endif 447 endif 448 449 ifeq ($(mixed-targets),1) 450 # =========================================================================== 451 # We're called with mixed targets (*config and build targets). 452 # Handle them one by one. 453 454 PHONY += $(MAKECMDGOALS) __build_one_by_one 455 456 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 457 @: 458 459 __build_one_by_one: 460 $(Q)set -e; \ 461 for i in $(MAKECMDGOALS); do \ 462 $(MAKE) -f $(srctree)/Makefile $$i; \ 463 done 464 465 else 466 ifeq ($(config-targets),1) 467 # =========================================================================== 468 # *config targets only - make sure prerequisites are updated, and descend 469 # in scripts/kconfig to make the *config target 470 471 KBUILD_DEFCONFIG := sandbox_defconfig 472 export KBUILD_DEFCONFIG KBUILD_KCONFIG 473 474 config: scripts_basic outputmakefile FORCE 475 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 476 477 %config: scripts_basic outputmakefile FORCE 478 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 479 480 else 481 # =========================================================================== 482 # Build targets only - this includes vmlinux, arch specific targets, clean 483 # targets and others. In general all targets except *config targets. 484 485 ifeq ($(dot-config),1) 486 # Read in config 487 -include include/config/auto.conf 488 489 # Read in dependencies to all Kconfig* files, make sure to run 490 # oldconfig if changes are detected. 491 -include include/config/auto.conf.cmd 492 493 # To avoid any implicit rule to kick in, define an empty command 494 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 495 496 # If .config is newer than include/config/auto.conf, someone tinkered 497 # with it and forgot to run make oldconfig. 498 # if auto.conf.cmd is missing then we are probably in a cleaned tree so 499 # we execute the config step to be sure to catch updated Kconfig files 500 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 501 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 502 @# If the following part fails, include/config/auto.conf should be 503 @# deleted so "make silentoldconfig" will be re-run on the next build. 504 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 505 { rm -f include/config/auto.conf; false; } 506 @# include/config.h has been updated after "make silentoldconfig". 507 @# We need to touch include/config/auto.conf so it gets newer 508 @# than include/config.h. 509 @# Otherwise, 'make silentoldconfig' would be invoked twice. 510 $(Q)touch include/config/auto.conf 511 512 -include include/autoconf.mk 513 -include include/autoconf.mk.dep 514 515 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 516 # is up-to-date. When we switch to a different board configuration, old CONFIG 517 # macros are still remaining in include/config/auto.conf. Without the following 518 # gimmick, wrong config.mk would be included leading nasty warnings/errors. 519 ifneq ($(wildcard $(KCONFIG_CONFIG)),) 520 ifneq ($(wildcard include/config/auto.conf),) 521 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 522 include/config/auto.conf) 523 ifeq ($(autoconf_is_old),) 524 include config.mk 525 include arch/$(ARCH)/Makefile 526 endif 527 endif 528 endif 529 530 # These are set by the arch-specific config.mk. Make sure they are exported 531 # so they can be used when building an EFI application. 532 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 533 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 534 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 535 export CFLAGS_EFI # Compiler flags to add when building EFI app 536 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 537 export EFI_TARGET # binutils target if EFI is natively supported 538 539 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 540 # that (or fail if absent). Otherwise, search for a linker script in a 541 # standard location. 542 543 ifndef LDSCRIPT 544 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 545 ifdef CONFIG_SYS_LDSCRIPT 546 # need to strip off double quotes 547 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 548 endif 549 endif 550 551 # If there is no specified link script, we look in a number of places for it 552 ifndef LDSCRIPT 553 ifeq ($(wildcard $(LDSCRIPT)),) 554 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 555 endif 556 ifeq ($(wildcard $(LDSCRIPT)),) 557 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 558 endif 559 ifeq ($(wildcard $(LDSCRIPT)),) 560 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 561 endif 562 endif 563 564 else 565 # Dummy target needed, because used as prerequisite 566 include/config/auto.conf: ; 567 endif # $(dot-config) 568 569 # 570 # Xtensa linker script cannot be preprocessed with -ansi because of 571 # preprocessor operations on strings that don't make C identifiers. 572 # 573 ifeq ($(CONFIG_XTENSA),) 574 LDPPFLAGS += -ansi 575 endif 576 577 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 578 KBUILD_CFLAGS += -Os 579 else 580 KBUILD_CFLAGS += -O2 581 endif 582 583 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 584 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 585 586 KBUILD_CFLAGS += -g 587 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 588 # option to the assembler. 589 KBUILD_AFLAGS += -g 590 591 # Report stack usage if supported 592 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 593 KBUILD_CFLAGS += -fstack-usage 594 endif 595 596 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 597 598 # turn jbsr into jsr for m68k 599 ifeq ($(ARCH),m68k) 600 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 601 KBUILD_AFLAGS += -Wa,-gstabs,-S 602 endif 603 endif 604 605 # Prohibit date/time macros, which would make the build non-deterministic 606 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 607 608 include scripts/Makefile.extrawarn 609 610 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 611 KBUILD_CPPFLAGS += $(KCPPFLAGS) 612 KBUILD_AFLAGS += $(KAFLAGS) 613 KBUILD_CFLAGS += $(KCFLAGS) 614 615 # Use UBOOTINCLUDE when you must reference the include/ directory. 616 # Needed to be compatible with the O= option 617 UBOOTINCLUDE := \ 618 -Iinclude \ 619 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 620 $(if $(CONFIG_SYS_THUMB_BUILD), $(if $(CONFIG_HAS_THUMB2),, \ 621 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 622 -I$(srctree)/arch/$(ARCH)/include \ 623 -include $(srctree)/include/linux/kconfig.h 624 625 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 626 CHECKFLAGS += $(NOSTDINC_FLAGS) 627 628 # FIX ME 629 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 630 $(NOSTDINC_FLAGS) 631 c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 632 633 ######################################################################### 634 # U-Boot objects....order is important (i.e. start must be first) 635 636 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 637 638 libs-y += lib/ 639 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 640 libs-$(CONFIG_OF_EMBED) += dts/ 641 libs-y += fs/ 642 libs-y += net/ 643 libs-y += disk/ 644 libs-y += drivers/ 645 libs-y += drivers/dma/ 646 libs-y += drivers/gpio/ 647 libs-y += drivers/i2c/ 648 libs-y += drivers/mmc/ 649 libs-y += drivers/mtd/ 650 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 651 libs-y += drivers/mtd/onenand/ 652 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 653 libs-y += drivers/mtd/spi/ 654 libs-y += drivers/net/ 655 libs-y += drivers/net/phy/ 656 libs-y += drivers/pci/ 657 libs-y += drivers/power/ \ 658 drivers/power/domain/ \ 659 drivers/power/fuel_gauge/ \ 660 drivers/power/mfd/ \ 661 drivers/power/pmic/ \ 662 drivers/power/battery/ \ 663 drivers/power/regulator/ 664 libs-y += drivers/spi/ 665 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 666 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 667 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 668 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 669 libs-y += drivers/serial/ 670 libs-y += drivers/usb/dwc3/ 671 libs-y += drivers/usb/common/ 672 libs-y += drivers/usb/emul/ 673 libs-y += drivers/usb/eth/ 674 libs-y += drivers/usb/gadget/ 675 libs-y += drivers/usb/gadget/udc/ 676 libs-y += drivers/usb/host/ 677 libs-y += drivers/usb/musb/ 678 libs-y += drivers/usb/musb-new/ 679 libs-y += drivers/usb/phy/ 680 libs-y += drivers/usb/ulpi/ 681 libs-y += cmd/ 682 libs-y += common/ 683 libs-$(CONFIG_API) += api/ 684 libs-$(CONFIG_HAS_POST) += post/ 685 libs-y += test/ 686 libs-y += test/dm/ 687 libs-$(CONFIG_UT_ENV) += test/env/ 688 libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 689 690 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 691 692 libs-y := $(sort $(libs-y)) 693 694 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 695 696 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 697 698 libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 699 700 u-boot-init := $(head-y) 701 u-boot-main := $(libs-y) 702 703 704 # Add GCC lib 705 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 706 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 707 else 708 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 709 endif 710 PLATFORM_LIBS += $(PLATFORM_LIBGCC) 711 export PLATFORM_LIBS 712 export PLATFORM_LIBGCC 713 714 # Special flags for CPP when processing the linker script. 715 # Pass the version down so we can handle backwards compatibility 716 # on the fly. 717 LDPPFLAGS += \ 718 -include $(srctree)/include/u-boot/u-boot.lds.h \ 719 -DCPUDIR=$(CPUDIR) \ 720 $(shell $(LD) --version | \ 721 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 722 723 ######################################################################### 724 ######################################################################### 725 726 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 727 BOARD_SIZE_CHECK = \ 728 @actual=`wc -c $@ | awk '{print $$1}'`; \ 729 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 730 if test $$actual -gt $$limit; then \ 731 echo "$@ exceeds file size limit:" >&2 ; \ 732 echo " limit: $$limit bytes" >&2 ; \ 733 echo " actual: $$actual bytes" >&2 ; \ 734 echo " excess: $$((actual - limit)) bytes" >&2; \ 735 exit 1; \ 736 fi 737 else 738 BOARD_SIZE_CHECK = 739 endif 740 741 # Statically apply RELA-style relocations (currently arm64 only) 742 ifneq ($(CONFIG_STATIC_RELA),) 743 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 744 DO_STATIC_RELA = \ 745 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 746 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 747 tools/relocate-rela $(2) $(3) $$start $$end 748 else 749 DO_STATIC_RELA = 750 endif 751 752 # Always append ALL so that arch config.mk's can add custom ones 753 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 754 755 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 756 ifeq ($(CONFIG_SPL_FSL_PBL),y) 757 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 758 else 759 ifneq ($(CONFIG_SECURE_BOOT), y) 760 # For Secure Boot The Image needs to be signed and Header must also 761 # be included. So The image has to be built explicitly 762 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 763 endif 764 endif 765 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 766 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 767 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 768 else 769 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 770 endif 771 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 772 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 773 ifeq ($(CONFIG_SPL_FRAMEWORK),y) 774 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 775 endif 776 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 777 ifneq ($(CONFIG_SPL_TARGET),) 778 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 779 endif 780 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 781 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 782 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 783 784 ifneq ($(BUILD_ROM),) 785 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 786 endif 787 788 # enable combined SPL/u-boot/dtb rules for tegra 789 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 790 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 791 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 792 endif 793 794 # Add optional build target if defined in board/cpu/soc headers 795 ifneq ($(CONFIG_BUILD_TARGET),) 796 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 797 endif 798 799 LDFLAGS_u-boot += $(LDFLAGS_FINAL) 800 ifneq ($(CONFIG_SYS_TEXT_BASE),) 801 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 802 endif 803 804 # Normally we fill empty space with 0xff 805 quiet_cmd_objcopy = OBJCOPY $@ 806 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 807 $(OBJCOPYFLAGS_$(@F)) $< $@ 808 809 # Provide a version which does not do this, for use by EFI 810 quiet_cmd_zobjcopy = OBJCOPY $@ 811 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 812 813 quiet_cmd_efipayload = OBJCOPY $@ 814 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 815 816 MKIMAGEOUTPUT ?= /dev/null 817 818 quiet_cmd_mkimage = MKIMAGE $@ 819 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 820 $(if $(KBUILD_VERBOSE:1=), >$(MKIMAGEOUTPUT)) 821 822 quiet_cmd_cat = CAT $@ 823 cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 824 825 append = cat $(filter-out $< $(PHONY), $^) >> $@ 826 827 quiet_cmd_pad_cat = CAT $@ 828 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 829 830 cfg: u-boot.cfg 831 832 all: $(ALL-y) 833 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 834 @echo "===================== WARNING ======================" 835 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 836 @echo "(possibly in a subsequent patch in your series)" 837 @echo "before sending patches to the mailing list." 838 @echo "====================================================" 839 endif 840 @# Check that this build does not use CONFIG options that we do not 841 @# know about unless they are in Kconfig. All the existing CONFIG 842 @# options are whitelisted, so new ones should not be added. 843 $(srctree)/scripts/check-config.sh u-boot.cfg \ 844 $(srctree)/scripts/config_whitelist.txt ${srctree} 1>&2 845 846 PHONY += dtbs 847 dtbs: dts/dt.dtb 848 @: 849 dts/dt.dtb: checkdtc u-boot 850 $(Q)$(MAKE) $(build)=dts dtbs 851 852 quiet_cmd_copy = COPY $@ 853 cmd_copy = cp $< $@ 854 855 ifeq ($(CONFIG_OF_SEPARATE),y) 856 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 857 $(call if_changed,cat) 858 859 u-boot.bin: u-boot-dtb.bin FORCE 860 $(call if_changed,copy) 861 else 862 u-boot.bin: u-boot-nodtb.bin FORCE 863 $(call if_changed,copy) 864 endif 865 866 %.imx: %.bin 867 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 868 869 %.vyb: %.imx 870 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 871 872 quiet_cmd_copy = COPY $@ 873 cmd_copy = cp $< $@ 874 875 u-boot.dtb: dts/dt.dtb 876 $(call cmd,copy) 877 878 OBJCOPYFLAGS_u-boot.hex := -O ihex 879 880 OBJCOPYFLAGS_u-boot.srec := -O srec 881 882 u-boot.hex u-boot.srec: u-boot FORCE 883 $(call if_changed,objcopy) 884 885 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 886 $(if $(CONFIG_X86_RESET_VECTOR),-R .start16 -R .resetvec) 887 888 binary_size_check: u-boot-nodtb.bin FORCE 889 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 890 map_size=$(shell cat u-boot.map | \ 891 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 892 | sed 's/0X//g' \ 893 | bc); \ 894 if [ "" != "$$map_size" ]; then \ 895 if test $$map_size -ne $$file_size; then \ 896 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 897 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 898 exit 1; \ 899 fi \ 900 fi 901 902 u-boot-nodtb.bin: u-boot FORCE 903 $(call if_changed,objcopy) 904 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 905 $(BOARD_SIZE_CHECK) 906 907 u-boot.ldr: u-boot 908 $(CREATE_LDR_ENV) 909 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 910 $(BOARD_SIZE_CHECK) 911 912 # binman 913 # --------------------------------------------------------------------------- 914 quiet_cmd_binman = BINMAN $@ 915 cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 916 -I . -I $(srctree)/board/$(BOARDDIR) $< 917 918 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 919 920 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 921 922 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 923 $(call if_changed,objcopy) 924 925 # 926 # U-Boot entry point, needed for booting of full-blown U-Boot 927 # from the SPL U-Boot version. 928 # 929 ifndef CONFIG_SYS_UBOOT_START 930 CONFIG_SYS_UBOOT_START := 0 931 endif 932 933 # Create a file containing the configuration options the image was built with 934 quiet_cmd_cpp_cfg = CFG $@ 935 cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 936 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 937 938 ifdef CONFIG_SPL_LOAD_FIT 939 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 940 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 941 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 942 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 943 else 944 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 945 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 946 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 947 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 948 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 949 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 950 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 951 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 952 endif 953 954 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 955 956 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 957 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 958 959 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 960 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 961 962 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 963 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 964 965 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 966 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 967 $(call if_changed,mkimage) 968 969 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 970 $(call if_changed,mkimage) 971 972 u-boot.sha1: u-boot.bin 973 tools/ubsha1 u-boot.bin 974 975 u-boot.dis: u-boot 976 $(OBJDUMP) -d $< > $@ 977 978 ifdef CONFIG_TPL 979 SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 980 else 981 SPL_PAYLOAD := u-boot.bin 982 endif 983 984 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 985 --pad-to=$(CONFIG_SPL_PAD_TO) 986 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 987 $(call if_changed,pad_cat) 988 989 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 990 991 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 992 $(call if_changed,mkimage) 993 994 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 995 996 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 997 $(call if_changed,objcopy) 998 999 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1000 1001 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1002 $(call if_changed,objcopy) 1003 1004 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1005 $(call if_changed,cat) 1006 1007 CLEAN_FILES += lpc32xx-* 1008 1009 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1010 --pad-to=$(CONFIG_TPL_PAD_TO) 1011 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1012 $(call if_changed,pad_cat) 1013 1014 SPL: spl/u-boot-spl.bin FORCE 1015 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1016 1017 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1018 $(Q)$(MAKE) $(build)=arch/arm/imx-common $@ 1019 1020 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1021 1022 u-boot.ubl: u-boot-with-spl.bin FORCE 1023 $(call if_changed,mkimage) 1024 1025 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1026 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1027 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1028 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1029 $(call if_changed,mkimage) 1030 1031 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1032 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1033 $(call if_changed,pad_cat) 1034 1035 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1036 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1037 u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1038 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1039 1040 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1041 # Both images are created using mkimage (crc etc), so that the ROM 1042 # bootloader can check its integrity. Padding needs to be done to the 1043 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1044 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1045 # The resulting image containing both U-Boot images is called u-boot.spr 1046 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1047 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1048 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1049 $(call if_changed,mkimage) 1050 1051 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1052 --gap-fill=0xff 1053 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1054 $(call if_changed,pad_cat) 1055 1056 ifneq ($(CONFIG_ARCH_SOCFPGA),) 1057 quiet_cmd_socboot = SOCBOOT $@ 1058 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1059 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1060 u-boot.img > $@ || rm -f $@ 1061 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1062 $(call if_changed,socboot) 1063 endif 1064 1065 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1066 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1067 # the middle. This is handled by binman based on an image description in the 1068 # board's device tree. 1069 ifneq ($(CONFIG_X86_RESET_VECTOR),) 1070 rom: u-boot.rom FORCE 1071 1072 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1073 $(call if_changed,copy) 1074 1075 quiet_cmd_ldr = LD $@ 1076 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1077 $(filter-out FORCE,$^) -o $@ 1078 1079 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin FORCE \ 1080 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) 1081 $(call if_changed,binman) 1082 1083 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1084 u-boot-x86-16bit.bin: u-boot FORCE 1085 $(call if_changed,objcopy) 1086 endif 1087 1088 ifneq ($(CONFIG_ARCH_SUNXI),) 1089 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1090 $(call if_changed,binman) 1091 endif 1092 1093 ifneq ($(CONFIG_TEGRA),) 1094 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1095 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1096 $(call if_changed,pad_cat) 1097 1098 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1099 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1100 $(call if_changed,pad_cat) 1101 1102 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1103 $(call if_changed,copy) 1104 endif 1105 1106 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1107 u-boot-app.efi: u-boot FORCE 1108 $(call if_changed,zobjcopy) 1109 1110 u-boot.bin.o: u-boot.bin FORCE 1111 $(call if_changed,efipayload) 1112 1113 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1114 $(call if_changed_dep,cpp_lds) 1115 1116 # Rule to link the EFI payload which contains a stub and a U-Boot binary 1117 quiet_cmd_u-boot_payload ?= LD $@ 1118 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1119 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1120 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1121 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1122 1123 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1124 $(call if_changed,u-boot_payload) 1125 1126 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1127 u-boot-payload.efi: u-boot-payload FORCE 1128 $(call if_changed,zobjcopy) 1129 1130 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1131 $(call if_changed,cat) 1132 1133 #Add a target to create boot binary having SPL binary in PBI format 1134 #concatenated with u-boot binary. It is need by PowerPC SoC having 1135 #internal SRAM <= 512KB. 1136 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1137 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1138 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1139 1140 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1141 $(call if_changed,mkimage) 1142 1143 ifeq ($(ARCH),arm) 1144 UBOOT_BINLOAD := u-boot.img 1145 else 1146 UBOOT_BINLOAD := u-boot.bin 1147 endif 1148 1149 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1150 --gap-fill=0xff 1151 1152 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1153 $(call if_changed,pad_cat) 1154 1155 # PPC4xx needs the SPL at the end of the image, since the reset vector 1156 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1157 # and need to introduce a new build target with the full blown U-Boot 1158 # at the start padded up to the start of the SPL image. And then concat 1159 # the SPL image to the end. 1160 1161 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1162 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1163 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1164 $(call if_changed,pad_cat) 1165 1166 # Create a new ELF from a raw binary file. This is useful for arm64 1167 # where static relocation needs to be performed on the raw binary, 1168 # but certain simulators only accept an ELF file (but don't do the 1169 # relocation). 1170 # FIXME refactor dts/Makefile to share target/arch detection 1171 u-boot.elf: u-boot.bin 1172 @$(OBJCOPY) -B aarch64 -I binary -O elf64-littleaarch64 \ 1173 $< u-boot-elf.o 1174 @$(LD) u-boot-elf.o -o $@ \ 1175 --defsym=_start=$(CONFIG_SYS_TEXT_BASE) \ 1176 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1177 1178 # Rule to link u-boot 1179 # May be overridden by arch/$(ARCH)/config.mk 1180 quiet_cmd_u-boot__ ?= LD $@ 1181 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1182 -T u-boot.lds $(u-boot-init) \ 1183 --start-group $(u-boot-main) --end-group \ 1184 $(PLATFORM_LIBS) -Map u-boot.map 1185 1186 quiet_cmd_smap = GEN common/system_map.o 1187 cmd_smap = \ 1188 smap=`$(call SYSTEM_MAP,u-boot) | \ 1189 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1190 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1191 -c $(srctree)/common/system_map.c -o common/system_map.o 1192 1193 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1194 $(call if_changed,u-boot__) 1195 ifeq ($(CONFIG_KALLSYMS),y) 1196 $(call cmd,smap) 1197 $(call cmd,u-boot__) common/system_map.o 1198 endif 1199 1200 quiet_cmd_sym ?= SYM $@ 1201 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1202 u-boot.sym: u-boot FORCE 1203 $(call if_changed,sym) 1204 1205 # The actual objects are generated when descending, 1206 # make sure no implicit rule kicks in 1207 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1208 1209 # Handle descending into subdirectories listed in $(vmlinux-dirs) 1210 # Preset locale variables to speed up the build process. Limit locale 1211 # tweaks to this spot to avoid wrong language settings when running 1212 # make menuconfig etc. 1213 # Error messages still appears in the original language 1214 1215 PHONY += $(u-boot-dirs) 1216 $(u-boot-dirs): prepare scripts 1217 $(Q)$(MAKE) $(build)=$@ 1218 1219 tools: prepare 1220 # The "tools" are needed early 1221 $(filter-out tools, $(u-boot-dirs)): tools 1222 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1223 # is "yes"), so compile examples after U-Boot is compiled. 1224 examples: $(filter-out examples, $(u-boot-dirs)) 1225 1226 define filechk_uboot.release 1227 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1228 endef 1229 1230 # Store (new) UBOOTRELEASE string in include/config/uboot.release 1231 include/config/uboot.release: include/config/auto.conf FORCE 1232 $(call filechk,uboot.release) 1233 1234 1235 # Things we need to do before we recursively start building the kernel 1236 # or the modules are listed in "prepare". 1237 # A multi level approach is used. prepareN is processed before prepareN-1. 1238 # archprepare is used in arch Makefiles and when processed asm symlink, 1239 # version.h and scripts_basic is processed / created. 1240 1241 # Listed in dependency order 1242 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1243 1244 # prepare3 is used to check if we are building in a separate output directory, 1245 # and if so do: 1246 # 1) Check that make has not been executed in the kernel src $(srctree) 1247 prepare3: include/config/uboot.release 1248 ifneq ($(KBUILD_SRC),) 1249 @$(kecho) ' Using $(srctree) as source for U-Boot' 1250 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1251 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1252 echo >&2 " in the '$(srctree)' directory.";\ 1253 /bin/false; \ 1254 fi; 1255 endif 1256 1257 # prepare2 creates a makefile if using a separate output directory 1258 prepare2: prepare3 outputmakefile 1259 1260 prepare1: prepare2 $(version_h) $(timestamp_h) \ 1261 include/config/auto.conf 1262 ifeq ($(wildcard $(LDSCRIPT)),) 1263 @echo >&2 " Could not find linker script." 1264 @/bin/false 1265 endif 1266 1267 archprepare: prepare1 scripts_basic 1268 1269 prepare0: archprepare FORCE 1270 $(Q)$(MAKE) $(build)=. 1271 1272 # All the preparing.. 1273 prepare: prepare0 1274 1275 # Generate some files 1276 # --------------------------------------------------------------------------- 1277 1278 define filechk_version.h 1279 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1280 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1281 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1282 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1283 endef 1284 1285 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1286 # The BSD date on the other hand behaves different and would produce errors 1287 # with the misused '-d' switch. Respect that and search a working date with 1288 # well known pre- and suffixes for the GNU variant of date. 1289 define filechk_timestamp.h 1290 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1291 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1292 DATE=""; \ 1293 for date in gdate date.gnu date; do \ 1294 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1295 done; \ 1296 if test -n "$${DATE}"; then \ 1297 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1298 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1299 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1300 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1301 else \ 1302 return 42; \ 1303 fi; \ 1304 else \ 1305 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1306 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1307 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1308 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1309 fi) 1310 endef 1311 1312 $(version_h): include/config/uboot.release FORCE 1313 $(call filechk,version.h) 1314 1315 $(timestamp_h): $(srctree)/Makefile FORCE 1316 $(call filechk,timestamp.h) 1317 1318 # --------------------------------------------------------------------------- 1319 quiet_cmd_cpp_lds = LDS $@ 1320 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1321 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1322 1323 u-boot.lds: $(LDSCRIPT) prepare FORCE 1324 $(call if_changed_dep,cpp_lds) 1325 1326 spl/u-boot-spl.bin: spl/u-boot-spl 1327 @: 1328 spl/u-boot-spl: tools prepare \ 1329 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1330 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1331 1332 spl/sunxi-spl.bin: spl/u-boot-spl 1333 @: 1334 1335 spl/u-boot-spl.sfp: spl/u-boot-spl 1336 @: 1337 1338 spl/boot.bin: spl/u-boot-spl 1339 @: 1340 1341 tpl/u-boot-tpl.bin: tools prepare 1342 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1343 1344 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1345 1346 FIND := find 1347 FINDFLAGS := -L 1348 1349 tags ctags: 1350 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1351 -name '*.[chS]' -print` 1352 ln -s ctags tags 1353 1354 etags: 1355 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1356 -name '*.[chS]' -print` 1357 cscope: 1358 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1359 cscope.files 1360 cscope -b -q -k 1361 1362 SYSTEM_MAP = \ 1363 $(NM) $1 | \ 1364 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1365 LC_ALL=C sort 1366 System.map: u-boot 1367 @$(call SYSTEM_MAP,$<) > $@ 1368 1369 checkdtc: 1370 @if test $(call dtc-version) -lt 0104; then \ 1371 echo '*** Your dtc is too old, please upgrade to dtc 1.4 or newer'; \ 1372 false; \ 1373 fi 1374 1375 ######################################################################### 1376 1377 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1378 # R_AARCH64_RELATIVE (64-bit). 1379 checkarmreloc: u-boot 1380 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1381 grep R_A | sort -u`"; \ 1382 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1383 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1384 echo "$< contains unexpected relocations: $$RELOC"; \ 1385 false; \ 1386 fi 1387 1388 env: scripts_basic 1389 $(Q)$(MAKE) $(build)=tools/$@ 1390 1391 tools-only: scripts_basic $(version_h) $(timestamp_h) 1392 $(Q)$(MAKE) $(build)=tools 1393 1394 tools-all: export HOST_TOOLS_ALL=y 1395 tools-all: env tools ; 1396 1397 cross_tools: export CROSS_BUILD_TOOLS=y 1398 cross_tools: tools ; 1399 1400 .PHONY : CHANGELOG 1401 CHANGELOG: 1402 git log --no-merges U-Boot-1_1_5.. | \ 1403 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1404 1405 ######################################################################### 1406 1407 ### 1408 # Cleaning is done on three levels. 1409 # make clean Delete most generated files 1410 # Leave enough to build external modules 1411 # make mrproper Delete the current configuration, and all generated files 1412 # make distclean Remove editor backup files, patch leftover files and the like 1413 1414 # Directories & files removed with 'make clean' 1415 CLEAN_DIRS += $(MODVERDIR) \ 1416 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1417 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1418 1419 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h include/license.h \ 1420 boot* u-boot* MLO* SPL System.map 1421 1422 # Directories & files removed with 'make mrproper' 1423 MRPROPER_DIRS += include/config include/generated spl tpl \ 1424 .tmp_objdiff 1425 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1426 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1427 1428 # clean - Delete most, but leave enough to build external modules 1429 # 1430 clean: rm-dirs := $(CLEAN_DIRS) 1431 clean: rm-files := $(CLEAN_FILES) 1432 1433 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1434 1435 clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1436 1437 PHONY += $(clean-dirs) clean archclean 1438 $(clean-dirs): 1439 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1440 1441 # TODO: Do not use *.cfgtmp 1442 clean: $(clean-dirs) 1443 $(call cmd,rmdirs) 1444 $(call cmd,rmfiles) 1445 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1446 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1447 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1448 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1449 -o -name '*.symtypes' -o -name 'modules.order' \ 1450 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1451 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1452 -o -name '*.gcno' \) -type f -print | xargs rm -f 1453 1454 # mrproper - Delete all generated files, including .config 1455 # 1456 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1457 mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1458 mrproper-dirs := $(addprefix _mrproper_,scripts) 1459 1460 PHONY += $(mrproper-dirs) mrproper archmrproper 1461 $(mrproper-dirs): 1462 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1463 1464 mrproper: clean $(mrproper-dirs) 1465 $(call cmd,rmdirs) 1466 $(call cmd,rmfiles) 1467 @rm -f arch/*/include/asm/arch 1468 1469 # distclean 1470 # 1471 PHONY += distclean 1472 1473 distclean: mrproper 1474 @find $(srctree) $(RCS_FIND_IGNORE) \ 1475 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1476 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1477 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1478 -o -name '*.pyc' \) \ 1479 -type f -print | xargs rm -f 1480 @rm -f boards.cfg 1481 1482 backup: 1483 F=`basename $(srctree)` ; cd .. ; \ 1484 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1485 1486 help: 1487 @echo 'Cleaning targets:' 1488 @echo ' clean - Remove most generated files but keep the config' 1489 @echo ' mrproper - Remove all generated files + config + various backup files' 1490 @echo ' distclean - mrproper + remove editor backup and patch files' 1491 @echo '' 1492 @echo 'Configuration targets:' 1493 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1494 @echo '' 1495 @echo 'Other generic targets:' 1496 @echo ' all - Build all necessary images depending on configuration' 1497 @echo ' tests - Build U-Boot for sandbox and run tests' 1498 @echo '* u-boot - Build the bare u-boot' 1499 @echo ' dir/ - Build all files in dir and below' 1500 @echo ' dir/file.[oisS] - Build specified target only' 1501 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1502 @echo ' (requires a recent binutils and recent build (System.map))' 1503 @echo ' tags/ctags - Generate ctags file for editors' 1504 @echo ' etags - Generate etags file for editors' 1505 @echo ' cscope - Generate cscope index' 1506 @echo ' ubootrelease - Output the release version string (use with make -s)' 1507 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1508 @echo " cfg - Don't build, just create the .cfg files" 1509 @echo '' 1510 @echo 'Static analysers' 1511 @echo ' checkstack - Generate a list of stack hogs' 1512 @echo '' 1513 @echo 'Documentation targets:' 1514 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1515 @echo '' 1516 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1517 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1518 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1519 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1520 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1521 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1522 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1523 @echo ' 1: warnings which may be relevant and do not occur too often' 1524 @echo ' 2: warnings which occur quite often but may still be relevant' 1525 @echo ' 3: more obscure warnings, can most likely be ignored' 1526 @echo ' Multiple levels can be combined with W=12 or W=123' 1527 @echo '' 1528 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1529 @echo 'For further info see the ./README file' 1530 1531 tests: 1532 $(srctree)/test/run 1533 1534 # Documentation targets 1535 # --------------------------------------------------------------------------- 1536 %docs: scripts_basic FORCE 1537 $(Q)$(MAKE) $(build)=scripts build_docproc 1538 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1539 1540 # Dummies... 1541 PHONY += prepare scripts 1542 prepare: ; 1543 scripts: ; 1544 1545 endif #ifeq ($(config-targets),1) 1546 endif #ifeq ($(mixed-targets),1) 1547 1548 PHONY += checkstack ubootrelease ubootversion 1549 1550 checkstack: 1551 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1552 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1553 1554 ubootrelease: 1555 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1556 1557 ubootversion: 1558 @echo $(UBOOTVERSION) 1559 1560 # Single targets 1561 # --------------------------------------------------------------------------- 1562 # Single targets are compatible with: 1563 # - build with mixed source and output 1564 # - build with separate output dir 'make O=...' 1565 # - external modules 1566 # 1567 # target-dir => where to store outputfile 1568 # build-dir => directory in kernel source tree to use 1569 1570 ifeq ($(KBUILD_EXTMOD),) 1571 build-dir = $(patsubst %/,%,$(dir $@)) 1572 target-dir = $(dir $@) 1573 else 1574 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1575 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1576 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1577 endif 1578 1579 %.s: %.c prepare scripts FORCE 1580 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1581 %.i: %.c prepare scripts FORCE 1582 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1583 %.o: %.c prepare scripts FORCE 1584 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1585 %.lst: %.c prepare scripts FORCE 1586 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1587 %.s: %.S prepare scripts FORCE 1588 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1589 %.o: %.S prepare scripts FORCE 1590 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1591 %.symtypes: %.c prepare scripts FORCE 1592 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1593 1594 # Modules 1595 /: prepare scripts FORCE 1596 $(cmd_crmodverdir) 1597 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1598 $(build)=$(build-dir) 1599 %/: prepare scripts FORCE 1600 $(cmd_crmodverdir) 1601 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1602 $(build)=$(build-dir) 1603 %.ko: prepare scripts FORCE 1604 $(cmd_crmodverdir) 1605 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1606 $(build)=$(build-dir) $(@:.ko=.o) 1607 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1608 1609 # FIXME Should go into a make.lib or something 1610 # =========================================================================== 1611 1612 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1613 cmd_rmdirs = rm -rf $(rm-dirs) 1614 1615 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1616 cmd_rmfiles = rm -f $(rm-files) 1617 1618 # read all saved command lines 1619 1620 targets := $(wildcard $(sort $(targets))) 1621 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1622 1623 ifneq ($(cmd_files),) 1624 $(cmd_files): ; # Do not try to update included dependency files 1625 include $(cmd_files) 1626 endif 1627 1628 endif # skip-makefile 1629 1630 PHONY += FORCE 1631 FORCE: 1632 1633 # Declare the contents of the .PHONY variable as phony. We keep that 1634 # information in a variable so we can use it in if_changed and friends. 1635 .PHONY: $(PHONY) 1636