1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2018 4PATCHLEVEL = 07 5SUBLEVEL = 6EXTRAVERSION = 7NAME = 8 9# *DOCUMENTATION* 10# To see a list of typical targets execute "make help" 11# More info can be located in ./README 12# Comments in this file are targeted only to the developer, do not 13# expect to learn how to build the kernel reading this file. 14 15# o Do not use make's built-in rules and variables 16# (this increases performance and avoids hard-to-debug behaviour); 17# o Look for make include files relative to root of kernel src 18MAKEFLAGS += -rR --include-dir=$(CURDIR) 19 20# Avoid funny character set dependencies 21unexport LC_ALL 22LC_COLLATE=C 23LC_NUMERIC=C 24export LC_COLLATE LC_NUMERIC 25 26# Avoid interference with shell env settings 27unexport GREP_OPTIONS 28 29# We are using a recursive build, so we need to do a little thinking 30# to get the ordering right. 31# 32# Most importantly: sub-Makefiles should only ever modify files in 33# their own directory. If in some directory we have a dependency on 34# a file in another dir (which doesn't happen often, but it's often 35# unavoidable when linking the built-in.o targets which finally 36# turn into vmlinux), we will call a sub make in that other dir, and 37# after that we are sure that everything which is in that other dir 38# is now up to date. 39# 40# The only cases where we need to modify files which have global 41# effects are thus separated out and done before the recursive 42# descending is started. They are now explicitly listed as the 43# prepare rule. 44 45# Beautify output 46# --------------------------------------------------------------------------- 47# 48# Normally, we echo the whole command before executing it. By making 49# that echo $($(quiet)$(cmd)), we now have the possibility to set 50# $(quiet) to choose other forms of output instead, e.g. 51# 52# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 53# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 54# 55# If $(quiet) is empty, the whole command will be printed. 56# If it is set to "quiet_", only the short version will be printed. 57# If it is set to "silent_", nothing will be printed at all, since 58# the variable $(silent_cmd_cc_o_c) doesn't exist. 59# 60# A simple variant is to prefix commands with $(Q) - that's useful 61# for commands that shall be hidden in non-verbose mode. 62# 63# $(Q)ln $@ :< 64# 65# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 66# If KBUILD_VERBOSE equals 1 then the above command is displayed. 67# 68# To put more focus on warnings, be less verbose as default 69# Use 'make V=1' to see the full commands 70 71ifeq ("$(origin V)", "command line") 72 KBUILD_VERBOSE = $(V) 73endif 74ifndef KBUILD_VERBOSE 75 KBUILD_VERBOSE = 0 76endif 77 78ifeq ($(KBUILD_VERBOSE),1) 79 quiet = 80 Q = 81else 82 quiet=quiet_ 83 Q = @ 84endif 85 86# If the user is running make -s (silent mode), suppress echoing of 87# commands 88 89ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 90ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 91 quiet=silent_ 92endif 93else # make-3.8x 94ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 95 quiet=silent_ 96endif 97endif 98 99export quiet Q KBUILD_VERBOSE 100 101# kbuild supports saving output files in a separate directory. 102# To locate output files in a separate directory two syntaxes are supported. 103# In both cases the working directory must be the root of the kernel src. 104# 1) O= 105# Use "make O=dir/to/store/output/files/" 106# 107# 2) Set KBUILD_OUTPUT 108# Set the environment variable KBUILD_OUTPUT to point to the directory 109# where the output files shall be placed. 110# export KBUILD_OUTPUT=dir/to/store/output/files/ 111# make 112# 113# The O= assignment takes precedence over the KBUILD_OUTPUT environment 114# variable. 115 116# KBUILD_SRC is set on invocation of make in OBJ directory 117# KBUILD_SRC is not intended to be used by the regular user (for now) 118ifeq ($(KBUILD_SRC),) 119 120# OK, Make called in directory where kernel src resides 121# Do we want to locate output files in a separate directory? 122ifeq ("$(origin O)", "command line") 123 KBUILD_OUTPUT := $(O) 124endif 125 126# That's our default target when none is given on the command line 127PHONY := _all 128_all: 129 130# Cancel implicit rules on top Makefile 131$(CURDIR)/Makefile Makefile: ; 132 133ifneq ($(KBUILD_OUTPUT),) 134# Invoke a second make in the output directory, passing relevant variables 135# check that the output directory actually exists 136saved-output := $(KBUILD_OUTPUT) 137KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 138 && /bin/pwd) 139$(if $(KBUILD_OUTPUT),, \ 140 $(error failed to create output directory "$(saved-output)")) 141 142PHONY += $(MAKECMDGOALS) sub-make 143 144$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 145 @: 146 147sub-make: FORCE 148 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 149 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 150 151# Leave processing to above invocation of make 152skip-makefile := 1 153endif # ifneq ($(KBUILD_OUTPUT),) 154endif # ifeq ($(KBUILD_SRC),) 155 156# We process the rest of the Makefile if this is the final invocation of make 157ifeq ($(skip-makefile),) 158 159# Do not print "Entering directory ...", 160# but we want to display it when entering to the output directory 161# so that IDEs/editors are able to understand relative filenames. 162MAKEFLAGS += --no-print-directory 163 164# Call a source code checker (by default, "sparse") as part of the 165# C compilation. 166# 167# Use 'make C=1' to enable checking of only re-compiled files. 168# Use 'make C=2' to enable checking of *all* source files, regardless 169# of whether they are re-compiled or not. 170# 171# See the file "Documentation/sparse.txt" for more details, including 172# where to get the "sparse" utility. 173 174ifeq ("$(origin C)", "command line") 175 KBUILD_CHECKSRC = $(C) 176endif 177ifndef KBUILD_CHECKSRC 178 KBUILD_CHECKSRC = 0 179endif 180 181# Use make M=dir to specify directory of external module to build 182# Old syntax make ... SUBDIRS=$PWD is still supported 183# Setting the environment variable KBUILD_EXTMOD take precedence 184ifdef SUBDIRS 185 KBUILD_EXTMOD ?= $(SUBDIRS) 186endif 187 188ifeq ("$(origin M)", "command line") 189 KBUILD_EXTMOD := $(M) 190endif 191 192# If building an external module we do not care about the all: rule 193# but instead _all depend on modules 194PHONY += all 195ifeq ($(KBUILD_EXTMOD),) 196_all: all 197else 198_all: modules 199endif 200 201ifeq ($(KBUILD_SRC),) 202 # building in the source tree 203 srctree := . 204else 205 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 206 # building in a subdirectory of the source tree 207 srctree := .. 208 else 209 srctree := $(KBUILD_SRC) 210 endif 211endif 212objtree := . 213src := $(srctree) 214obj := $(objtree) 215 216VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 217 218export srctree objtree VPATH 219 220# Make sure CDPATH settings don't interfere 221unexport CDPATH 222 223######################################################################### 224 225HOSTARCH := $(shell uname -m | \ 226 sed -e s/i.86/x86/ \ 227 -e s/sun4u/sparc64/ \ 228 -e s/arm.*/arm/ \ 229 -e s/sa110/arm/ \ 230 -e s/ppc64/powerpc/ \ 231 -e s/ppc/powerpc/ \ 232 -e s/macppc/powerpc/\ 233 -e s/sh.*/sh/) 234 235HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 236 sed -e 's/\(cygwin\).*/cygwin/') 237 238export HOSTARCH HOSTOS 239 240######################################################################### 241 242# set default to nothing for native builds 243ifeq ($(HOSTARCH),$(ARCH)) 244CROSS_COMPILE ?= 245endif 246 247KCONFIG_CONFIG ?= .config 248export KCONFIG_CONFIG 249 250# SHELL used by kbuild 251CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 252 else if [ -x /bin/bash ]; then echo /bin/bash; \ 253 else echo sh; fi ; fi) 254 255HOSTCC = cc 256HOSTCXX = c++ 257HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 258 $(if $(CONFIG_TOOLS_DEBUG),-g) 259HOSTCXXFLAGS = -O2 260 261# With the move to GCC 6, we have implicitly upgraded our language 262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 264# have older compilers as their default, so we make it explicit for 265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 266CSTD_FLAG := -std=gnu11 267ifeq ($(HOSTOS),linux) 268HOSTCFLAGS += $(CSTD_FLAG) 269endif 270 271ifeq ($(HOSTOS),cygwin) 272HOSTCFLAGS += -ansi 273endif 274 275# Mac OS X / Darwin's C preprocessor is Apple specific. It 276# generates numerous errors and warnings. We want to bypass it 277# and use GNU C's cpp. To do this we pass the -traditional-cpp 278# option to the compiler. Note that the -traditional-cpp flag 279# DOES NOT have the same semantics as GNU C's flag, all it does 280# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 281# 282# Apple's linker is similar, thanks to the new 2 stage linking 283# multiple symbol definitions are treated as errors, hence the 284# -multiply_defined suppress option to turn off this error. 285# 286ifeq ($(HOSTOS),darwin) 287# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 288DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 289DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 290 291os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 292 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 293 294# Snow Leopards build environment has no longer restrictions as described above 295HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 296HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 297HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 298 299# since Lion (10.7) ASLR is on by default, but we use linker generated lists 300# in some host tools which is a problem then ... so disable ASLR for these 301# tools 302HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 303endif 304 305# Decide whether to build built-in, modular, or both. 306# Normally, just do built-in. 307 308KBUILD_MODULES := 309KBUILD_BUILTIN := 1 310 311# If we have only "make modules", don't compile built-in objects. 312# When we're building modules with modversions, we need to consider 313# the built-in objects during the descend as well, in order to 314# make sure the checksums are up to date before we record them. 315 316ifeq ($(MAKECMDGOALS),modules) 317 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 318endif 319 320# If we have "make <whatever> modules", compile modules 321# in addition to whatever we do anyway. 322# Just "make" or "make all" shall build modules as well 323 324# U-Boot does not need modules 325#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 326# KBUILD_MODULES := 1 327#endif 328 329#ifeq ($(MAKECMDGOALS),) 330# KBUILD_MODULES := 1 331#endif 332 333export KBUILD_MODULES KBUILD_BUILTIN 334export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 335 336# We need some generic definitions (do not try to remake the file). 337scripts/Kbuild.include: ; 338include scripts/Kbuild.include 339 340# Make variables (CC, etc...) 341 342AS = $(CROSS_COMPILE)as 343# Always use GNU ld 344ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 345LD = $(CROSS_COMPILE)ld.bfd 346else 347LD = $(CROSS_COMPILE)ld 348endif 349CC = $(CROSS_COMPILE)gcc 350CPP = $(CC) -E 351AR = $(CROSS_COMPILE)ar 352NM = $(CROSS_COMPILE)nm 353LDR = $(CROSS_COMPILE)ldr 354STRIP = $(CROSS_COMPILE)strip 355OBJCOPY = $(CROSS_COMPILE)objcopy 356OBJDUMP = $(CROSS_COMPILE)objdump 357LEX = flex 358YACC = bison 359AWK = awk 360PERL = perl 361PYTHON ?= python 362PYTHON2 = python2 363PYTHON3 = python3 364DTC ?= $(objtree)/scripts/dtc/dtc 365CHECK = sparse 366 367CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 368 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 369 370KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 371 372KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 373 -Wno-format-security \ 374 -fno-builtin -ffreestanding $(CSTD_FLAG) 375KBUILD_CFLAGS += -fshort-wchar 376KBUILD_AFLAGS := -D__ASSEMBLY__ 377 378# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 379UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 380UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 381 382export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 383export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 384export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 385export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 386export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 387export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 388 389export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 390export KBUILD_CFLAGS KBUILD_AFLAGS 391 392# When compiling out-of-tree modules, put MODVERDIR in the module 393# tree rather than in the kernel tree. The kernel tree might 394# even be read-only. 395export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 396 397# Files to ignore in find ... statements 398 399export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 400 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 401 -prune -o 402export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 403 --exclude CVS --exclude .pc --exclude .hg --exclude .git 404 405# =========================================================================== 406# Rules shared between *config targets and build targets 407 408# Basic helpers built in scripts/ 409PHONY += scripts_basic 410scripts_basic: 411 $(Q)$(MAKE) $(build)=scripts/basic 412 $(Q)rm -f .tmp_quiet_recordmcount 413 414# To avoid any implicit rule to kick in, define an empty command. 415scripts/basic/%: scripts_basic ; 416 417PHONY += outputmakefile 418# outputmakefile generates a Makefile in the output directory, if using a 419# separate output directory. This allows convenient use of make in the 420# output directory. 421outputmakefile: 422ifneq ($(KBUILD_SRC),) 423 $(Q)ln -fsn $(srctree) source 424 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 425 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 426endif 427 428# To make sure we do not include .config for any of the *config targets 429# catch them early, and hand them over to scripts/kconfig/Makefile 430# It is allowed to specify more targets when calling make, including 431# mixing *config targets and build targets. 432# For example 'make oldconfig all'. 433# Detect when mixed targets is specified, and make a second invocation 434# of make so .config is not included in this case either (for *config). 435 436version_h := include/generated/version_autogenerated.h 437timestamp_h := include/generated/timestamp_autogenerated.h 438defaultenv_h := include/generated/defaultenv_autogenerated.h 439 440no-dot-config-targets := clean clobber mrproper distclean \ 441 help %docs check% coccicheck \ 442 ubootversion backup tests 443 444config-targets := 0 445mixed-targets := 0 446dot-config := 1 447 448ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 449 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 450 dot-config := 0 451 endif 452endif 453 454ifeq ($(KBUILD_EXTMOD),) 455 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 456 config-targets := 1 457 ifneq ($(words $(MAKECMDGOALS)),1) 458 mixed-targets := 1 459 endif 460 endif 461endif 462 463ifeq ($(mixed-targets),1) 464# =========================================================================== 465# We're called with mixed targets (*config and build targets). 466# Handle them one by one. 467 468PHONY += $(MAKECMDGOALS) __build_one_by_one 469 470$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 471 @: 472 473__build_one_by_one: 474 $(Q)set -e; \ 475 for i in $(MAKECMDGOALS); do \ 476 $(MAKE) -f $(srctree)/Makefile $$i; \ 477 done 478 479else 480ifeq ($(config-targets),1) 481# =========================================================================== 482# *config targets only - make sure prerequisites are updated, and descend 483# in scripts/kconfig to make the *config target 484 485KBUILD_DEFCONFIG := sandbox_defconfig 486export KBUILD_DEFCONFIG KBUILD_KCONFIG 487 488config: scripts_basic outputmakefile FORCE 489 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 490 491%config: scripts_basic outputmakefile FORCE 492 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 493 494else 495# =========================================================================== 496# Build targets only - this includes vmlinux, arch specific targets, clean 497# targets and others. In general all targets except *config targets. 498 499# Additional helpers built in scripts/ 500# Carefully list dependencies so we do not try to build scripts twice 501# in parallel 502PHONY += scripts 503scripts: scripts_basic include/config/auto.conf 504 $(Q)$(MAKE) $(build)=$(@) 505 506ifeq ($(dot-config),1) 507# Read in config 508-include include/config/auto.conf 509 510# Read in dependencies to all Kconfig* files, make sure to run 511# oldconfig if changes are detected. 512-include include/config/auto.conf.cmd 513 514# To avoid any implicit rule to kick in, define an empty command 515$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 516 517# If .config is newer than include/config/auto.conf, someone tinkered 518# with it and forgot to run make oldconfig. 519# if auto.conf.cmd is missing then we are probably in a cleaned tree so 520# we execute the config step to be sure to catch updated Kconfig files 521include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 522 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 523 @# If the following part fails, include/config/auto.conf should be 524 @# deleted so "make silentoldconfig" will be re-run on the next build. 525 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 526 { rm -f include/config/auto.conf; false; } 527 @# include/config.h has been updated after "make silentoldconfig". 528 @# We need to touch include/config/auto.conf so it gets newer 529 @# than include/config.h. 530 @# Otherwise, 'make silentoldconfig' would be invoked twice. 531 $(Q)touch include/config/auto.conf 532 533u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE 534 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 535 536-include include/autoconf.mk 537-include include/autoconf.mk.dep 538 539# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 540# is up-to-date. When we switch to a different board configuration, old CONFIG 541# macros are still remaining in include/config/auto.conf. Without the following 542# gimmick, wrong config.mk would be included leading nasty warnings/errors. 543ifneq ($(wildcard $(KCONFIG_CONFIG)),) 544ifneq ($(wildcard include/config/auto.conf),) 545autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 546 include/config/auto.conf) 547ifeq ($(autoconf_is_old),) 548include config.mk 549include arch/$(ARCH)/Makefile 550endif 551endif 552endif 553 554# These are set by the arch-specific config.mk. Make sure they are exported 555# so they can be used when building an EFI application. 556export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 557export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 558export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 559export CFLAGS_EFI # Compiler flags to add when building EFI app 560export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 561export EFI_TARGET # binutils target if EFI is natively supported 562 563# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 564# that (or fail if absent). Otherwise, search for a linker script in a 565# standard location. 566 567ifndef LDSCRIPT 568 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 569 ifdef CONFIG_SYS_LDSCRIPT 570 # need to strip off double quotes 571 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 572 endif 573endif 574 575# If there is no specified link script, we look in a number of places for it 576ifndef LDSCRIPT 577 ifeq ($(wildcard $(LDSCRIPT)),) 578 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 579 endif 580 ifeq ($(wildcard $(LDSCRIPT)),) 581 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 582 endif 583 ifeq ($(wildcard $(LDSCRIPT)),) 584 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 585 endif 586endif 587 588else 589# Dummy target needed, because used as prerequisite 590include/config/auto.conf: ; 591endif # $(dot-config) 592 593# 594# Xtensa linker script cannot be preprocessed with -ansi because of 595# preprocessor operations on strings that don't make C identifiers. 596# 597ifeq ($(CONFIG_XTENSA),) 598LDPPFLAGS += -ansi 599endif 600 601ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 602KBUILD_CFLAGS += -Os 603else 604KBUILD_CFLAGS += -O2 605endif 606 607KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 608KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 609 610# change __FILE__ to the relative path from the srctree 611KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 612 613KBUILD_CFLAGS += -g 614# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 615# option to the assembler. 616KBUILD_AFLAGS += -g 617 618# Report stack usage if supported 619# ARC tools based on GCC 7.1 has an issue with stack usage 620# with naked functions, see commit message for more details 621ifndef CONFIG_ARC 622ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 623 KBUILD_CFLAGS += -fstack-usage 624endif 625endif 626 627KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 628ifeq ($(cc-name),clang) 629KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 630KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 631KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 632KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 633KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 634endif 635 636# turn jbsr into jsr for m68k 637ifeq ($(ARCH),m68k) 638ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 639KBUILD_AFLAGS += -Wa,-gstabs,-S 640endif 641endif 642 643# Prohibit date/time macros, which would make the build non-deterministic 644KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 645 646include scripts/Makefile.extrawarn 647 648# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 649KBUILD_CPPFLAGS += $(KCPPFLAGS) 650KBUILD_AFLAGS += $(KAFLAGS) 651KBUILD_CFLAGS += $(KCFLAGS) 652 653# Use UBOOTINCLUDE when you must reference the include/ directory. 654# Needed to be compatible with the O= option 655UBOOTINCLUDE := \ 656 -Iinclude \ 657 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 658 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 659 $(if $(CONFIG_HAS_THUMB2),, \ 660 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 661 -I$(srctree)/arch/$(ARCH)/include \ 662 -include $(srctree)/include/linux/kconfig.h 663 664NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 665CHECKFLAGS += $(NOSTDINC_FLAGS) 666 667# FIX ME 668cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 669 $(NOSTDINC_FLAGS) 670c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 671 672######################################################################### 673# U-Boot objects....order is important (i.e. start must be first) 674 675HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 676 677libs-y += lib/ 678libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 679libs-$(CONFIG_OF_EMBED) += dts/ 680libs-y += fs/ 681libs-y += net/ 682libs-y += disk/ 683libs-y += drivers/ 684libs-y += drivers/dma/ 685libs-y += drivers/gpio/ 686libs-y += drivers/i2c/ 687libs-y += drivers/mtd/ 688libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 689libs-y += drivers/mtd/onenand/ 690libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 691libs-y += drivers/mtd/spi/ 692libs-y += drivers/net/ 693libs-y += drivers/net/phy/ 694libs-y += drivers/pci/ 695libs-y += drivers/power/ \ 696 drivers/power/domain/ \ 697 drivers/power/fuel_gauge/ \ 698 drivers/power/mfd/ \ 699 drivers/power/pmic/ \ 700 drivers/power/battery/ \ 701 drivers/power/regulator/ 702libs-y += drivers/spi/ 703libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 704libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 705libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 706libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 707libs-y += drivers/serial/ 708libs-y += drivers/usb/dwc3/ 709libs-y += drivers/usb/common/ 710libs-y += drivers/usb/emul/ 711libs-y += drivers/usb/eth/ 712libs-y += drivers/usb/gadget/ 713libs-y += drivers/usb/gadget/udc/ 714libs-y += drivers/usb/host/ 715libs-y += drivers/usb/musb/ 716libs-y += drivers/usb/musb-new/ 717libs-y += drivers/usb/phy/ 718libs-y += drivers/usb/ulpi/ 719libs-y += cmd/ 720libs-y += common/ 721libs-y += env/ 722libs-$(CONFIG_API) += api/ 723libs-$(CONFIG_HAS_POST) += post/ 724libs-y += test/ 725libs-y += test/dm/ 726libs-$(CONFIG_UT_ENV) += test/env/ 727libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 728 729libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 730 731libs-y := $(sort $(libs-y)) 732 733u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 734 735u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 736 737libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 738 739u-boot-init := $(head-y) 740u-boot-main := $(libs-y) 741 742 743# Add GCC lib 744ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 745PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 746else 747PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 748endif 749PLATFORM_LIBS += $(PLATFORM_LIBGCC) 750 751ifdef CONFIG_CC_COVERAGE 752KBUILD_CFLAGS += --coverage 753PLATFORM_LIBGCC += -lgcov 754endif 755 756export PLATFORM_LIBS 757export PLATFORM_LIBGCC 758 759# Special flags for CPP when processing the linker script. 760# Pass the version down so we can handle backwards compatibility 761# on the fly. 762LDPPFLAGS += \ 763 -include $(srctree)/include/u-boot/u-boot.lds.h \ 764 -DCPUDIR=$(CPUDIR) \ 765 $(shell $(LD) --version | \ 766 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 767 768######################################################################### 769######################################################################### 770 771ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 772BOARD_SIZE_CHECK = \ 773 @actual=`wc -c $@ | awk '{print $$1}'`; \ 774 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 775 if test $$actual -gt $$limit; then \ 776 echo "$@ exceeds file size limit:" >&2 ; \ 777 echo " limit: $$limit bytes" >&2 ; \ 778 echo " actual: $$actual bytes" >&2 ; \ 779 echo " excess: $$((actual - limit)) bytes" >&2; \ 780 exit 1; \ 781 fi 782else 783BOARD_SIZE_CHECK = 784endif 785 786# Statically apply RELA-style relocations (currently arm64 only) 787# This is useful for arm64 where static relocation needs to be performed on 788# the raw binary, but certain simulators only accept an ELF file (but don't 789# do the relocation). 790ifneq ($(CONFIG_STATIC_RELA),) 791# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 792DO_STATIC_RELA = \ 793 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 794 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 795 tools/relocate-rela $(2) $(3) $$start $$end 796else 797DO_STATIC_RELA = 798endif 799 800# Always append ALL so that arch config.mk's can add custom ones 801ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 802 803ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 804ifeq ($(CONFIG_SPL_FSL_PBL),y) 805ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 806else 807ifneq ($(CONFIG_SECURE_BOOT), y) 808# For Secure Boot The Image needs to be signed and Header must also 809# be included. So The image has to be built explicitly 810ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 811endif 812endif 813ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 814ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 815ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 816else 817ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy) 818ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 819else 820ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 821endif 822endif 823ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 824ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 825ifeq ($(CONFIG_SPL_FRAMEWORK),y) 826ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 827endif 828ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 829ifneq ($(CONFIG_SPL_TARGET),) 830ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 831endif 832ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 833ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 834ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 835 836ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),) 837ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 838endif 839 840# Build a combined spl + u-boot image for sunxi 841ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) 842ALL-y += u-boot-sunxi-with-spl.bin 843endif 844 845# enable combined SPL/u-boot/dtb rules for tegra 846ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 847ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 848ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 849endif 850 851# Add optional build target if defined in board/cpu/soc headers 852ifneq ($(CONFIG_BUILD_TARGET),) 853ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 854endif 855 856ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 857ALL-y += init_sp_bss_offset_check 858endif 859 860LDFLAGS_u-boot += $(LDFLAGS_FINAL) 861 862# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 863LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 864 865ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 866LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 867endif 868 869# Normally we fill empty space with 0xff 870quiet_cmd_objcopy = OBJCOPY $@ 871cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 872 $(OBJCOPYFLAGS_$(@F)) $< $@ 873 874# Provide a version which does not do this, for use by EFI 875quiet_cmd_zobjcopy = OBJCOPY $@ 876cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 877 878quiet_cmd_efipayload = OBJCOPY $@ 879cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 880 881MKIMAGEOUTPUT ?= /dev/null 882 883quiet_cmd_mkimage = MKIMAGE $@ 884cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 885 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 886 887quiet_cmd_mkfitimage = MKIMAGE $@ 888cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \ 889 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 890 891quiet_cmd_cat = CAT $@ 892cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 893 894append = cat $(filter-out $< $(PHONY), $^) >> $@ 895 896quiet_cmd_pad_cat = CAT $@ 897cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 898 899cfg: u-boot.cfg 900 901quiet_cmd_cfgcheck = CFGCHK $2 902cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 903 $(srctree)/scripts/config_whitelist.txt $(srctree) 904 905all: $(ALL-y) cfg 906ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 907 @echo "===================== WARNING ======================" 908 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 909 @echo "(possibly in a subsequent patch in your series)" 910 @echo "before sending patches to the mailing list." 911 @echo "====================================================" 912endif 913 @# Check that this build does not use CONFIG options that we do not 914 @# know about unless they are in Kconfig. All the existing CONFIG 915 @# options are whitelisted, so new ones should not be added. 916 $(call cmd,cfgcheck,u-boot.cfg) 917 918PHONY += dtbs 919dtbs: dts/dt.dtb 920 @: 921dts/dt.dtb: u-boot 922 $(Q)$(MAKE) $(build)=dts dtbs 923 924quiet_cmd_copy = COPY $@ 925 cmd_copy = cp $< $@ 926 927ifeq ($(CONFIG_MULTI_DTB_FIT),y) 928 929fit-dtb.blob: dts/dt.dtb FORCE 930 $(call if_changed,mkimage) 931 932MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 933 -a 0 -e 0 -E \ 934 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 935 936u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 937 $(call if_changed,cat) 938 939u-boot.bin: u-boot-fit-dtb.bin FORCE 940 $(call if_changed,copy) 941else ifeq ($(CONFIG_OF_SEPARATE),y) 942u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 943 $(call if_changed,cat) 944 945u-boot.bin: u-boot-dtb.bin FORCE 946 $(call if_changed,copy) 947else 948u-boot.bin: u-boot-nodtb.bin FORCE 949 $(call if_changed,copy) 950endif 951 952%.imx: %.bin 953 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 954 955%.vyb: %.imx 956 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 957 958quiet_cmd_copy = COPY $@ 959 cmd_copy = cp $< $@ 960 961u-boot.dtb: dts/dt.dtb 962 $(call cmd,copy) 963 964OBJCOPYFLAGS_u-boot.hex := -O ihex 965 966OBJCOPYFLAGS_u-boot.srec := -O srec 967 968u-boot.hex u-boot.srec: u-boot FORCE 969 $(call if_changed,objcopy) 970 971OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 972 973u-boot-elf.srec: u-boot.elf FORCE 974 $(call if_changed,objcopy) 975 976OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 977 978spl/u-boot-spl.srec: spl/u-boot-spl FORCE 979 $(call if_changed,objcopy) 980 981OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 982 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 983 984binary_size_check: u-boot-nodtb.bin FORCE 985 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 986 map_size=$(shell cat u-boot.map | \ 987 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 988 | sed 's/0X//g' \ 989 | bc); \ 990 if [ "" != "$$map_size" ]; then \ 991 if test $$map_size -ne $$file_size; then \ 992 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 993 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 994 exit 1; \ 995 fi \ 996 fi 997 998ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 999ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1000subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1001else 1002subtract_sys_malloc_f_len = true 1003endif 1004# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1005# so low that the DTB could probably use 90%+ of the available space, for 1006# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1007# safe for now and tweak this later if space becomes tight. 1008# A rejected alternative would be to check that some absolute minimum stack 1009# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1010# deliberately build-specific, to take account of build-to-build stack usage 1011# differences due to different feature sets, there is no common absolute value 1012# to check against. 1013init_sp_bss_offset_check: u-boot.dtb FORCE 1014 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1015 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1016 $(subtract_sys_malloc_f_len) ; \ 1017 quarter_space=$$(($${space} / 4)) ; \ 1018 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1019 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1020 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1021 exit 1 ; \ 1022 fi 1023endif 1024 1025u-boot-nodtb.bin: u-boot FORCE 1026 $(call if_changed,objcopy) 1027 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1028 $(BOARD_SIZE_CHECK) 1029 1030u-boot.ldr: u-boot 1031 $(CREATE_LDR_ENV) 1032 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1033 $(BOARD_SIZE_CHECK) 1034 1035# binman 1036# --------------------------------------------------------------------------- 1037quiet_cmd_binman = BINMAN $@ 1038cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 1039 -I . -I $(srctree)/board/$(BOARDDIR) $< 1040 1041OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1042 1043OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1044 1045u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1046 $(call if_changed,objcopy) 1047 1048# 1049# U-Boot entry point, needed for booting of full-blown U-Boot 1050# from the SPL U-Boot version. 1051# 1052ifndef CONFIG_SYS_UBOOT_START 1053CONFIG_SYS_UBOOT_START := 0 1054endif 1055 1056# Create a file containing the configuration options the image was built with 1057quiet_cmd_cpp_cfg = CFG $@ 1058cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1059 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 1060 1061# Boards with more complex image requirments can provide an .its source file 1062# or a generator script 1063ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1064U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1065else 1066ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1067U_BOOT_ITS := u-boot.its 1068$(U_BOOT_ITS): FORCE 1069 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1070 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1071endif 1072endif 1073 1074ifdef CONFIG_SPL_LOAD_FIT 1075MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1076 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1077 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1078 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1079else 1080MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1081 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1082 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1083MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1084 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1085 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1086u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1087CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1088endif 1089 1090MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1091 1092MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1093 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1094 1095MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1096 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1097 $(if $(KEYDIR),-k $(KEYDIR)) 1098 1099MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1100 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1101 1102u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1103 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1104 $(call if_changed,mkimage) 1105 1106u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1107 $(call if_changed,mkfitimage) 1108 $(BOARD_SIZE_CHECK) 1109 1110u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1111 $(call if_changed,mkimage) 1112 1113u-boot.sha1: u-boot.bin 1114 tools/ubsha1 u-boot.bin 1115 1116u-boot.dis: u-boot 1117 $(OBJDUMP) -d $< > $@ 1118 1119ifdef CONFIG_TPL 1120SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 1121else 1122SPL_PAYLOAD := u-boot.bin 1123endif 1124 1125OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1126 --pad-to=$(CONFIG_SPL_PAD_TO) 1127u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1128 $(call if_changed,pad_cat) 1129 1130MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1131 1132lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1133 $(call if_changed,mkimage) 1134 1135OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1136 1137lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1138 $(call if_changed,objcopy) 1139 1140OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1141 1142lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1143 $(call if_changed,objcopy) 1144 1145lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1146 $(call if_changed,cat) 1147 1148CLEAN_FILES += lpc32xx-* 1149 1150OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1151 --pad-to=$(CONFIG_TPL_PAD_TO) 1152tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1153 $(call if_changed,pad_cat) 1154 1155SPL: spl/u-boot-spl.bin FORCE 1156 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1157 1158u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1159 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1160 1161MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1162 1163u-boot.ubl: u-boot-with-spl.bin FORCE 1164 $(call if_changed,mkimage) 1165 1166MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1167 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1168 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1169spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1170 $(call if_changed,mkimage) 1171 1172OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1173u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1174 $(call if_changed,pad_cat) 1175 1176u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1177 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1178u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1179 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1180 1181# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1182# Both images are created using mkimage (crc etc), so that the ROM 1183# bootloader can check its integrity. Padding needs to be done to the 1184# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1185# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1186# The resulting image containing both U-Boot images is called u-boot.spr 1187MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1188 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1189spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1190 $(call if_changed,mkimage) 1191 1192OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1193 --gap-fill=0xff 1194u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1195 $(call if_changed,pad_cat) 1196 1197ifneq ($(CONFIG_ARCH_SOCFPGA),) 1198quiet_cmd_socboot = SOCBOOT $@ 1199cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1200 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1201 u-boot.img > $@ || rm -f $@ 1202u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1203 $(call if_changed,socboot) 1204endif 1205 1206# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1207# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1208# the middle. This is handled by binman based on an image description in the 1209# board's device tree. 1210ifneq ($(CONFIG_X86_RESET_VECTOR),) 1211rom: u-boot.rom FORCE 1212 1213refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1214 $(call if_changed,copy) 1215 1216quiet_cmd_ldr = LD $@ 1217cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1218 $(filter-out FORCE,$^) -o $@ 1219 1220u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1221 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1222 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1223 $(call if_changed,binman) 1224 1225OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1226u-boot-x86-16bit.bin: u-boot FORCE 1227 $(call if_changed,objcopy) 1228endif 1229 1230ifneq ($(CONFIG_ARCH_SUNXI),) 1231ifeq ($(CONFIG_ARM64),) 1232u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1233 $(call if_changed,binman) 1234else 1235u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1236 $(call if_changed,cat) 1237endif 1238endif 1239 1240ifneq ($(CONFIG_TEGRA),) 1241ifneq ($(CONFIG_BINMAN),) 1242u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \ 1243 spl/u-boot-spl u-boot.bin FORCE 1244 $(call if_changed,binman) 1245else 1246OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1247u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1248 $(call if_changed,pad_cat) 1249 1250OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1251u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1252 $(call if_changed,pad_cat) 1253 1254u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1255 $(call if_changed,copy) 1256endif # binman 1257endif 1258 1259OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1260u-boot-app.efi: u-boot FORCE 1261 $(call if_changed,zobjcopy) 1262 1263u-boot.bin.o: u-boot.bin FORCE 1264 $(call if_changed,efipayload) 1265 1266u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1267 $(call if_changed_dep,cpp_lds) 1268 1269# Rule to link the EFI payload which contains a stub and a U-Boot binary 1270quiet_cmd_u-boot_payload ?= LD $@ 1271 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1272 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1273 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1274 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1275 1276u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1277 $(call if_changed,u-boot_payload) 1278 1279OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1280u-boot-payload.efi: u-boot-payload FORCE 1281 $(call if_changed,zobjcopy) 1282 1283u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1284 $(call if_changed,cat) 1285 1286#Add a target to create boot binary having SPL binary in PBI format 1287#concatenated with u-boot binary. It is need by PowerPC SoC having 1288#internal SRAM <= 512KB. 1289MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1290 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1291 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1292 1293spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1294 $(call if_changed,mkimage) 1295 1296ifeq ($(ARCH),arm) 1297UBOOT_BINLOAD := u-boot.img 1298else 1299UBOOT_BINLOAD := u-boot.bin 1300endif 1301 1302OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1303 --gap-fill=0xff 1304 1305u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1306 $(call if_changed,pad_cat) 1307 1308# PPC4xx needs the SPL at the end of the image, since the reset vector 1309# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1310# and need to introduce a new build target with the full blown U-Boot 1311# at the start padded up to the start of the SPL image. And then concat 1312# the SPL image to the end. 1313 1314OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1315 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1316u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1317 $(call if_changed,pad_cat) 1318 1319# Create a new ELF from a raw binary file. 1320ifndef PLATFORM_ELFENTRY 1321 PLATFORM_ELFENTRY = "_start" 1322endif 1323quiet_cmd_u-boot-elf ?= LD $@ 1324 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1325 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1326 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1327u-boot.elf: u-boot.bin 1328 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1329 $(call if_changed,u-boot-elf) 1330 1331ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1332 1333# Rule to link u-boot 1334# May be overridden by arch/$(ARCH)/config.mk 1335quiet_cmd_u-boot__ ?= LD $@ 1336 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1337 -T u-boot.lds $(u-boot-init) \ 1338 --start-group $(u-boot-main) --end-group \ 1339 $(PLATFORM_LIBS) -Map u-boot.map; \ 1340 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1341 1342quiet_cmd_smap = GEN common/system_map.o 1343cmd_smap = \ 1344 smap=`$(call SYSTEM_MAP,u-boot) | \ 1345 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1346 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1347 -c $(srctree)/common/system_map.c -o common/system_map.o 1348 1349u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1350 +$(call if_changed,u-boot__) 1351ifeq ($(CONFIG_KALLSYMS),y) 1352 $(call cmd,smap) 1353 $(call cmd,u-boot__) common/system_map.o 1354endif 1355 1356ifeq ($(CONFIG_RISCV),y) 1357 @tools/prelink-riscv $@ 0 1358endif 1359 1360quiet_cmd_sym ?= SYM $@ 1361 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1362u-boot.sym: u-boot FORCE 1363 $(call if_changed,sym) 1364 1365# The actual objects are generated when descending, 1366# make sure no implicit rule kicks in 1367$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1368 1369# Handle descending into subdirectories listed in $(vmlinux-dirs) 1370# Preset locale variables to speed up the build process. Limit locale 1371# tweaks to this spot to avoid wrong language settings when running 1372# make menuconfig etc. 1373# Error messages still appears in the original language 1374 1375PHONY += $(u-boot-dirs) 1376$(u-boot-dirs): prepare scripts 1377 $(Q)$(MAKE) $(build)=$@ 1378 1379tools: prepare 1380# The "tools" are needed early 1381$(filter-out tools, $(u-boot-dirs)): tools 1382# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1383# is "yes"), so compile examples after U-Boot is compiled. 1384examples: $(filter-out examples, $(u-boot-dirs)) 1385 1386define filechk_uboot.release 1387 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1388endef 1389 1390# Store (new) UBOOTRELEASE string in include/config/uboot.release 1391include/config/uboot.release: include/config/auto.conf FORCE 1392 $(call filechk,uboot.release) 1393 1394 1395# Things we need to do before we recursively start building the kernel 1396# or the modules are listed in "prepare". 1397# A multi level approach is used. prepareN is processed before prepareN-1. 1398# archprepare is used in arch Makefiles and when processed asm symlink, 1399# version.h and scripts_basic is processed / created. 1400 1401# Listed in dependency order 1402PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1403 1404# prepare3 is used to check if we are building in a separate output directory, 1405# and if so do: 1406# 1) Check that make has not been executed in the kernel src $(srctree) 1407prepare3: include/config/uboot.release 1408ifneq ($(KBUILD_SRC),) 1409 @$(kecho) ' Using $(srctree) as source for U-Boot' 1410 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1411 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1412 echo >&2 " in the '$(srctree)' directory.";\ 1413 /bin/false; \ 1414 fi; 1415endif 1416 1417# prepare2 creates a makefile if using a separate output directory 1418prepare2: prepare3 outputmakefile 1419 1420prepare1: prepare2 $(version_h) $(timestamp_h) \ 1421 include/config/auto.conf 1422ifeq ($(wildcard $(LDSCRIPT)),) 1423 @echo >&2 " Could not find linker script." 1424 @/bin/false 1425endif 1426 1427ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1428prepare1: $(defaultenv_h) 1429endif 1430 1431archprepare: prepare1 scripts_basic 1432 1433prepare0: archprepare FORCE 1434 $(Q)$(MAKE) $(build)=. 1435 1436# All the preparing.. 1437prepare: prepare0 1438 1439# Generate some files 1440# --------------------------------------------------------------------------- 1441 1442define filechk_version.h 1443 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1444 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1445 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1446 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1447endef 1448 1449# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1450# The BSD date on the other hand behaves different and would produce errors 1451# with the misused '-d' switch. Respect that and search a working date with 1452# well known pre- and suffixes for the GNU variant of date. 1453define filechk_timestamp.h 1454 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1455 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1456 DATE=""; \ 1457 for date in gdate date.gnu date; do \ 1458 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1459 done; \ 1460 if test -n "$${DATE}"; then \ 1461 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1462 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1463 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1464 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1465 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1466 else \ 1467 return 42; \ 1468 fi; \ 1469 else \ 1470 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1471 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1472 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1473 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1474 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1475 fi) 1476endef 1477 1478define filechk_defaultenv.h 1479 (grep -v '^#' | \ 1480 grep -v '^$$' | \ 1481 tr '\n' '\0' | \ 1482 sed -e 's/\\\x0/\n/' | \ 1483 xxd -i ; echo ", 0x00" ; ) 1484endef 1485 1486$(version_h): include/config/uboot.release FORCE 1487 $(call filechk,version.h) 1488 1489$(timestamp_h): $(srctree)/Makefile FORCE 1490 $(call filechk,timestamp.h) 1491 1492$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1493 $(call filechk,defaultenv.h) 1494 1495# --------------------------------------------------------------------------- 1496quiet_cmd_cpp_lds = LDS $@ 1497cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1498 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1499 1500u-boot.lds: $(LDSCRIPT) prepare FORCE 1501 $(call if_changed_dep,cpp_lds) 1502 1503spl/u-boot-spl.bin: spl/u-boot-spl 1504 @: 1505spl/u-boot-spl: tools prepare \ 1506 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1507 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1508 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1509 1510spl/sunxi-spl.bin: spl/u-boot-spl 1511 @: 1512 1513spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1514 @: 1515 1516spl/u-boot-spl.sfp: spl/u-boot-spl 1517 @: 1518 1519spl/boot.bin: spl/u-boot-spl 1520 @: 1521 1522tpl/u-boot-tpl.bin: tools prepare \ 1523 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1524 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1525 1526TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1527 1528FIND := find 1529FINDFLAGS := -L 1530 1531tags ctags: 1532 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1533 -name '*.[chS]' -print` 1534 ln -s ctags tags 1535 1536etags: 1537 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1538 -name '*.[chS]' -print` 1539cscope: 1540 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1541 cscope.files 1542 cscope -b -q -k 1543 1544SYSTEM_MAP = \ 1545 $(NM) $1 | \ 1546 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1547 LC_ALL=C sort 1548System.map: u-boot 1549 @$(call SYSTEM_MAP,$<) > $@ 1550 1551######################################################################### 1552 1553# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1554# R_AARCH64_RELATIVE (64-bit). 1555checkarmreloc: u-boot 1556 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1557 grep R_A | sort -u`"; \ 1558 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1559 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1560 echo "$< contains unexpected relocations: $$RELOC"; \ 1561 false; \ 1562 fi 1563 1564envtools: scripts_basic $(version_h) $(timestamp_h) 1565 $(Q)$(MAKE) $(build)=tools/env 1566 1567tools-only: scripts_basic $(version_h) $(timestamp_h) 1568 $(Q)$(MAKE) $(build)=tools 1569 1570tools-all: export HOST_TOOLS_ALL=y 1571tools-all: envtools tools ; 1572 1573cross_tools: export CROSS_BUILD_TOOLS=y 1574cross_tools: tools ; 1575 1576.PHONY : CHANGELOG 1577CHANGELOG: 1578 git log --no-merges U-Boot-1_1_5.. | \ 1579 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1580 1581######################################################################### 1582 1583### 1584# Cleaning is done on three levels. 1585# make clean Delete most generated files 1586# Leave enough to build external modules 1587# make mrproper Delete the current configuration, and all generated files 1588# make distclean Remove editor backup files, patch leftover files and the like 1589 1590# Directories & files removed with 'make clean' 1591CLEAN_DIRS += $(MODVERDIR) \ 1592 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1593 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1594 1595CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1596 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1597 1598# Directories & files removed with 'make mrproper' 1599MRPROPER_DIRS += include/config include/generated spl tpl \ 1600 .tmp_objdiff 1601MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1602 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1603 1604# clean - Delete most, but leave enough to build external modules 1605# 1606clean: rm-dirs := $(CLEAN_DIRS) 1607clean: rm-files := $(CLEAN_FILES) 1608 1609clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1610 1611clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1612 1613PHONY += $(clean-dirs) clean archclean 1614$(clean-dirs): 1615 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1616 1617# TODO: Do not use *.cfgtmp 1618clean: $(clean-dirs) 1619 $(call cmd,rmdirs) 1620 $(call cmd,rmfiles) 1621 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1622 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1623 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1624 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1625 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 1626 -o -name '*.symtypes' -o -name 'modules.order' \ 1627 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1628 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1629 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 1630 -type f -print | xargs rm -f 1631 1632# mrproper - Delete all generated files, including .config 1633# 1634mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1635mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1636mrproper-dirs := $(addprefix _mrproper_,scripts) 1637 1638PHONY += $(mrproper-dirs) mrproper archmrproper 1639$(mrproper-dirs): 1640 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1641 1642mrproper: clean $(mrproper-dirs) 1643 $(call cmd,rmdirs) 1644 $(call cmd,rmfiles) 1645 @rm -f arch/*/include/asm/arch 1646 1647# distclean 1648# 1649PHONY += distclean 1650 1651distclean: mrproper 1652 @find $(srctree) $(RCS_FIND_IGNORE) \ 1653 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1654 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1655 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1656 -o -name '*.pyc' \) \ 1657 -type f -print | xargs rm -f 1658 @rm -f boards.cfg 1659 1660backup: 1661 F=`basename $(srctree)` ; cd .. ; \ 1662 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1663 1664help: 1665 @echo 'Cleaning targets:' 1666 @echo ' clean - Remove most generated files but keep the config' 1667 @echo ' mrproper - Remove all generated files + config + various backup files' 1668 @echo ' distclean - mrproper + remove editor backup and patch files' 1669 @echo '' 1670 @echo 'Configuration targets:' 1671 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1672 @echo '' 1673 @echo 'Other generic targets:' 1674 @echo ' all - Build all necessary images depending on configuration' 1675 @echo ' tests - Build U-Boot for sandbox and run tests' 1676 @echo '* u-boot - Build the bare u-boot' 1677 @echo ' dir/ - Build all files in dir and below' 1678 @echo ' dir/file.[oisS] - Build specified target only' 1679 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1680 @echo ' (requires a recent binutils and recent build (System.map))' 1681 @echo ' tags/ctags - Generate ctags file for editors' 1682 @echo ' etags - Generate etags file for editors' 1683 @echo ' cscope - Generate cscope index' 1684 @echo ' ubootrelease - Output the release version string (use with make -s)' 1685 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1686 @echo " cfg - Don't build, just create the .cfg files" 1687 @echo " envtools - Build only the target-side environment tools" 1688 @echo '' 1689 @echo 'Static analysers' 1690 @echo ' checkstack - Generate a list of stack hogs' 1691 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1692 @echo '' 1693 @echo 'Documentation targets:' 1694 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1695 @echo '' 1696 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1697 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1698 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1699 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1700 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1701 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1702 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1703 @echo ' 1: warnings which may be relevant and do not occur too often' 1704 @echo ' 2: warnings which occur quite often but may still be relevant' 1705 @echo ' 3: more obscure warnings, can most likely be ignored' 1706 @echo ' Multiple levels can be combined with W=12 or W=123' 1707 @echo '' 1708 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1709 @echo 'For further info see the ./README file' 1710 1711tests: 1712 $(srctree)/test/run 1713 1714# Documentation targets 1715# --------------------------------------------------------------------------- 1716%docs: scripts_basic FORCE 1717 $(Q)$(MAKE) $(build)=scripts build_docproc 1718 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1719 1720endif #ifeq ($(config-targets),1) 1721endif #ifeq ($(mixed-targets),1) 1722 1723PHONY += checkstack ubootrelease ubootversion 1724 1725checkstack: 1726 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1727 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1728 1729ubootrelease: 1730 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1731 1732ubootversion: 1733 @echo $(UBOOTVERSION) 1734 1735# Single targets 1736# --------------------------------------------------------------------------- 1737# Single targets are compatible with: 1738# - build with mixed source and output 1739# - build with separate output dir 'make O=...' 1740# - external modules 1741# 1742# target-dir => where to store outputfile 1743# build-dir => directory in kernel source tree to use 1744 1745ifeq ($(KBUILD_EXTMOD),) 1746 build-dir = $(patsubst %/,%,$(dir $@)) 1747 target-dir = $(dir $@) 1748else 1749 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1750 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1751 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1752endif 1753 1754%.s: %.c prepare scripts FORCE 1755 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1756%.i: %.c prepare scripts FORCE 1757 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1758%.o: %.c prepare scripts FORCE 1759 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1760%.lst: %.c prepare scripts FORCE 1761 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1762%.s: %.S prepare scripts FORCE 1763 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1764%.o: %.S prepare scripts FORCE 1765 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1766%.symtypes: %.c prepare scripts FORCE 1767 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1768 1769# Modules 1770/: prepare scripts FORCE 1771 $(cmd_crmodverdir) 1772 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1773 $(build)=$(build-dir) 1774%/: prepare scripts FORCE 1775 $(cmd_crmodverdir) 1776 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1777 $(build)=$(build-dir) 1778%.ko: prepare scripts FORCE 1779 $(cmd_crmodverdir) 1780 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1781 $(build)=$(build-dir) $(@:.ko=.o) 1782 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1783 1784# Consistency checks 1785# --------------------------------------------------------------------------- 1786 1787PHONY += coccicheck 1788 1789coccicheck: 1790 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1791 1792# FIXME Should go into a make.lib or something 1793# =========================================================================== 1794 1795quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1796 cmd_rmdirs = rm -rf $(rm-dirs) 1797 1798quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1799 cmd_rmfiles = rm -f $(rm-files) 1800 1801# read all saved command lines 1802 1803targets := $(wildcard $(sort $(targets))) 1804cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1805 1806ifneq ($(cmd_files),) 1807 $(cmd_files): ; # Do not try to update included dependency files 1808 include $(cmd_files) 1809endif 1810 1811endif # skip-makefile 1812 1813PHONY += FORCE 1814FORCE: 1815 1816# Declare the contents of the .PHONY variable as phony. We keep that 1817# information in a variable so we can use it in if_changed and friends. 1818.PHONY: $(PHONY) 1819