1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2018 4PATCHLEVEL = 05 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 $(CONFIG_TOOLS_DEBUG),-g) 259HOSTCXXFLAGS = -O2 260 261# With the move to GCC 6, we have implicitly upgraded our language 262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 264# have older compilers as their default, so we make it explicit for 265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 266ifeq ($(HOSTOS),linux) 267HOSTCFLAGS += --std=gnu11 268endif 269 270ifeq ($(HOSTOS),cygwin) 271HOSTCFLAGS += -ansi 272endif 273 274# Mac OS X / Darwin's C preprocessor is Apple specific. It 275# generates numerous errors and warnings. We want to bypass it 276# and use GNU C's cpp. To do this we pass the -traditional-cpp 277# option to the compiler. Note that the -traditional-cpp flag 278# DOES NOT have the same semantics as GNU C's flag, all it does 279# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 280# 281# Apple's linker is similar, thanks to the new 2 stage linking 282# multiple symbol definitions are treated as errors, hence the 283# -multiply_defined suppress option to turn off this error. 284# 285ifeq ($(HOSTOS),darwin) 286# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 287DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 288DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 289 290os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 291 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 292 293# Snow Leopards build environment has no longer restrictions as described above 294HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 295HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 296HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 297 298# since Lion (10.7) ASLR is on by default, but we use linker generated lists 299# in some host tools which is a problem then ... so disable ASLR for these 300# tools 301HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 302endif 303 304# Decide whether to build built-in, modular, or both. 305# Normally, just do built-in. 306 307KBUILD_MODULES := 308KBUILD_BUILTIN := 1 309 310# If we have only "make modules", don't compile built-in objects. 311# When we're building modules with modversions, we need to consider 312# the built-in objects during the descend as well, in order to 313# make sure the checksums are up to date before we record them. 314 315ifeq ($(MAKECMDGOALS),modules) 316 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 317endif 318 319# If we have "make <whatever> modules", compile modules 320# in addition to whatever we do anyway. 321# Just "make" or "make all" shall build modules as well 322 323# U-Boot does not need modules 324#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 325# KBUILD_MODULES := 1 326#endif 327 328#ifeq ($(MAKECMDGOALS),) 329# KBUILD_MODULES := 1 330#endif 331 332export KBUILD_MODULES KBUILD_BUILTIN 333export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 334 335# We need some generic definitions (do not try to remake the file). 336scripts/Kbuild.include: ; 337include scripts/Kbuild.include 338 339# Make variables (CC, etc...) 340 341AS = $(CROSS_COMPILE)as 342# Always use GNU ld 343ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 344LD = $(CROSS_COMPILE)ld.bfd 345else 346LD = $(CROSS_COMPILE)ld 347endif 348CC = $(CROSS_COMPILE)gcc 349CPP = $(CC) -E 350AR = $(CROSS_COMPILE)ar 351NM = $(CROSS_COMPILE)nm 352LDR = $(CROSS_COMPILE)ldr 353STRIP = $(CROSS_COMPILE)strip 354OBJCOPY = $(CROSS_COMPILE)objcopy 355OBJDUMP = $(CROSS_COMPILE)objdump 356LEX = flex 357YACC = bison 358AWK = awk 359PERL = perl 360PYTHON ?= python 361PYTHON2 = python2 362PYTHON3 = python3 363DTC ?= $(objtree)/scripts/dtc/dtc 364CHECK = sparse 365 366CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 367 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 368 369KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 370 371KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 372 -Wno-format-security \ 373 -fno-builtin -ffreestanding 374KBUILD_CFLAGS += -fshort-wchar 375KBUILD_AFLAGS := -D__ASSEMBLY__ 376 377# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 378UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 379UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 380 381export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 382export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 383export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 384export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 385export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 386export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 387 388export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 389export KBUILD_CFLAGS KBUILD_AFLAGS 390 391# When compiling out-of-tree modules, put MODVERDIR in the module 392# tree rather than in the kernel tree. The kernel tree might 393# even be read-only. 394export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 395 396# Files to ignore in find ... statements 397 398export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 399 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 400 -prune -o 401export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 402 --exclude CVS --exclude .pc --exclude .hg --exclude .git 403 404# =========================================================================== 405# Rules shared between *config targets and build targets 406 407# Basic helpers built in scripts/ 408PHONY += scripts_basic 409scripts_basic: 410 $(Q)$(MAKE) $(build)=scripts/basic 411 $(Q)rm -f .tmp_quiet_recordmcount 412 413# To avoid any implicit rule to kick in, define an empty command. 414scripts/basic/%: scripts_basic ; 415 416PHONY += outputmakefile 417# outputmakefile generates a Makefile in the output directory, if using a 418# separate output directory. This allows convenient use of make in the 419# output directory. 420outputmakefile: 421ifneq ($(KBUILD_SRC),) 422 $(Q)ln -fsn $(srctree) source 423 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 424 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 425endif 426 427# To make sure we do not include .config for any of the *config targets 428# catch them early, and hand them over to scripts/kconfig/Makefile 429# It is allowed to specify more targets when calling make, including 430# mixing *config targets and build targets. 431# For example 'make oldconfig all'. 432# Detect when mixed targets is specified, and make a second invocation 433# of make so .config is not included in this case either (for *config). 434 435version_h := include/generated/version_autogenerated.h 436timestamp_h := include/generated/timestamp_autogenerated.h 437defaultenv_h := include/generated/defaultenv_autogenerated.h 438 439no-dot-config-targets := clean clobber mrproper distclean \ 440 help %docs check% coccicheck \ 441 ubootversion backup tests 442 443config-targets := 0 444mixed-targets := 0 445dot-config := 1 446 447ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 448 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 449 dot-config := 0 450 endif 451endif 452 453ifeq ($(KBUILD_EXTMOD),) 454 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 455 config-targets := 1 456 ifneq ($(words $(MAKECMDGOALS)),1) 457 mixed-targets := 1 458 endif 459 endif 460endif 461 462ifeq ($(mixed-targets),1) 463# =========================================================================== 464# We're called with mixed targets (*config and build targets). 465# Handle them one by one. 466 467PHONY += $(MAKECMDGOALS) __build_one_by_one 468 469$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 470 @: 471 472__build_one_by_one: 473 $(Q)set -e; \ 474 for i in $(MAKECMDGOALS); do \ 475 $(MAKE) -f $(srctree)/Makefile $$i; \ 476 done 477 478else 479ifeq ($(config-targets),1) 480# =========================================================================== 481# *config targets only - make sure prerequisites are updated, and descend 482# in scripts/kconfig to make the *config target 483 484KBUILD_DEFCONFIG := sandbox_defconfig 485export KBUILD_DEFCONFIG KBUILD_KCONFIG 486 487config: scripts_basic outputmakefile FORCE 488 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 489 490%config: scripts_basic outputmakefile FORCE 491 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 492 493else 494# =========================================================================== 495# Build targets only - this includes vmlinux, arch specific targets, clean 496# targets and others. In general all targets except *config targets. 497 498# Additional helpers built in scripts/ 499# Carefully list dependencies so we do not try to build scripts twice 500# in parallel 501PHONY += scripts 502scripts: scripts_basic include/config/auto.conf 503 $(Q)$(MAKE) $(build)=$(@) 504 505ifeq ($(dot-config),1) 506# Read in config 507-include include/config/auto.conf 508 509# Read in dependencies to all Kconfig* files, make sure to run 510# oldconfig if changes are detected. 511-include include/config/auto.conf.cmd 512 513# To avoid any implicit rule to kick in, define an empty command 514$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 515 516# If .config is newer than include/config/auto.conf, someone tinkered 517# with it and forgot to run make oldconfig. 518# if auto.conf.cmd is missing then we are probably in a cleaned tree so 519# we execute the config step to be sure to catch updated Kconfig files 520include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 521 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 522 @# If the following part fails, include/config/auto.conf should be 523 @# deleted so "make silentoldconfig" will be re-run on the next build. 524 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 525 { rm -f include/config/auto.conf; false; } 526 @# include/config.h has been updated after "make silentoldconfig". 527 @# We need to touch include/config/auto.conf so it gets newer 528 @# than include/config.h. 529 @# Otherwise, 'make silentoldconfig' would be invoked twice. 530 $(Q)touch include/config/auto.conf 531 532u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE 533 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 534 535-include include/autoconf.mk 536-include include/autoconf.mk.dep 537 538# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 539# is up-to-date. When we switch to a different board configuration, old CONFIG 540# macros are still remaining in include/config/auto.conf. Without the following 541# gimmick, wrong config.mk would be included leading nasty warnings/errors. 542ifneq ($(wildcard $(KCONFIG_CONFIG)),) 543ifneq ($(wildcard include/config/auto.conf),) 544autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 545 include/config/auto.conf) 546ifeq ($(autoconf_is_old),) 547include config.mk 548include arch/$(ARCH)/Makefile 549endif 550endif 551endif 552 553# These are set by the arch-specific config.mk. Make sure they are exported 554# so they can be used when building an EFI application. 555export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 556export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 557export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 558export CFLAGS_EFI # Compiler flags to add when building EFI app 559export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 560export EFI_TARGET # binutils target if EFI is natively supported 561 562# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 563# that (or fail if absent). Otherwise, search for a linker script in a 564# standard location. 565 566ifndef LDSCRIPT 567 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 568 ifdef CONFIG_SYS_LDSCRIPT 569 # need to strip off double quotes 570 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 571 endif 572endif 573 574# If there is no specified link script, we look in a number of places for it 575ifndef LDSCRIPT 576 ifeq ($(wildcard $(LDSCRIPT)),) 577 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 578 endif 579 ifeq ($(wildcard $(LDSCRIPT)),) 580 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 581 endif 582 ifeq ($(wildcard $(LDSCRIPT)),) 583 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 584 endif 585endif 586 587else 588# Dummy target needed, because used as prerequisite 589include/config/auto.conf: ; 590endif # $(dot-config) 591 592# 593# Xtensa linker script cannot be preprocessed with -ansi because of 594# preprocessor operations on strings that don't make C identifiers. 595# 596ifeq ($(CONFIG_XTENSA),) 597LDPPFLAGS += -ansi 598endif 599 600ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 601KBUILD_CFLAGS += -Os 602else 603KBUILD_CFLAGS += -O2 604endif 605 606KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 607KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 608 609# change __FILE__ to the relative path from the srctree 610KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 611 612KBUILD_CFLAGS += -g 613# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 614# option to the assembler. 615KBUILD_AFLAGS += -g 616 617# Report stack usage if supported 618# ARC tools based on GCC 7.1 has an issue with stack usage 619# with naked functions, see commit message for more details 620ifndef CONFIG_ARC 621ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 622 KBUILD_CFLAGS += -fstack-usage 623endif 624endif 625 626KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 627ifeq ($(cc-name),clang) 628KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 629KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 630KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 631KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 632KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 633endif 634 635# turn jbsr into jsr for m68k 636ifeq ($(ARCH),m68k) 637ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 638KBUILD_AFLAGS += -Wa,-gstabs,-S 639endif 640endif 641 642# Prohibit date/time macros, which would make the build non-deterministic 643KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 644 645include scripts/Makefile.extrawarn 646 647# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 648KBUILD_CPPFLAGS += $(KCPPFLAGS) 649KBUILD_AFLAGS += $(KAFLAGS) 650KBUILD_CFLAGS += $(KCFLAGS) 651 652# Use UBOOTINCLUDE when you must reference the include/ directory. 653# Needed to be compatible with the O= option 654UBOOTINCLUDE := \ 655 -Iinclude \ 656 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 657 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 658 $(if $(CONFIG_HAS_THUMB2),, \ 659 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 660 -I$(srctree)/arch/$(ARCH)/include \ 661 -include $(srctree)/include/linux/kconfig.h 662 663NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 664CHECKFLAGS += $(NOSTDINC_FLAGS) 665 666# FIX ME 667cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 668 $(NOSTDINC_FLAGS) 669c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 670 671######################################################################### 672# U-Boot objects....order is important (i.e. start must be first) 673 674HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 675 676libs-y += lib/ 677libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 678libs-$(CONFIG_OF_EMBED) += dts/ 679libs-y += fs/ 680libs-y += net/ 681libs-y += disk/ 682libs-y += drivers/ 683libs-y += drivers/dma/ 684libs-y += drivers/gpio/ 685libs-y += drivers/i2c/ 686libs-y += drivers/mtd/ 687libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 688libs-y += drivers/mtd/onenand/ 689libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 690libs-y += drivers/mtd/spi/ 691libs-y += drivers/net/ 692libs-y += drivers/net/phy/ 693libs-y += drivers/pci/ 694libs-y += drivers/power/ \ 695 drivers/power/domain/ \ 696 drivers/power/fuel_gauge/ \ 697 drivers/power/mfd/ \ 698 drivers/power/pmic/ \ 699 drivers/power/battery/ \ 700 drivers/power/regulator/ 701libs-y += drivers/spi/ 702libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 703libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 704libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 705libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 706libs-y += drivers/serial/ 707libs-y += drivers/usb/dwc3/ 708libs-y += drivers/usb/common/ 709libs-y += drivers/usb/emul/ 710libs-y += drivers/usb/eth/ 711libs-y += drivers/usb/gadget/ 712libs-y += drivers/usb/gadget/udc/ 713libs-y += drivers/usb/host/ 714libs-y += drivers/usb/musb/ 715libs-y += drivers/usb/musb-new/ 716libs-y += drivers/usb/phy/ 717libs-y += drivers/usb/ulpi/ 718libs-y += cmd/ 719libs-y += common/ 720libs-y += env/ 721libs-$(CONFIG_API) += api/ 722libs-$(CONFIG_HAS_POST) += post/ 723libs-y += test/ 724libs-y += test/dm/ 725libs-$(CONFIG_UT_ENV) += test/env/ 726libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 727 728libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 729 730libs-y := $(sort $(libs-y)) 731 732u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 733 734u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 735 736libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 737 738u-boot-init := $(head-y) 739u-boot-main := $(libs-y) 740 741 742# Add GCC lib 743ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 744PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 745else 746PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 747endif 748PLATFORM_LIBS += $(PLATFORM_LIBGCC) 749 750ifdef CONFIG_CC_COVERAGE 751KBUILD_CFLAGS += --coverage 752PLATFORM_LIBGCC += -lgcov 753endif 754 755export PLATFORM_LIBS 756export PLATFORM_LIBGCC 757 758# Special flags for CPP when processing the linker script. 759# Pass the version down so we can handle backwards compatibility 760# on the fly. 761LDPPFLAGS += \ 762 -include $(srctree)/include/u-boot/u-boot.lds.h \ 763 -DCPUDIR=$(CPUDIR) \ 764 $(shell $(LD) --version | \ 765 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 766 767######################################################################### 768######################################################################### 769 770ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 771BOARD_SIZE_CHECK = \ 772 @actual=`wc -c $@ | awk '{print $$1}'`; \ 773 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 774 if test $$actual -gt $$limit; then \ 775 echo "$@ exceeds file size limit:" >&2 ; \ 776 echo " limit: $$limit bytes" >&2 ; \ 777 echo " actual: $$actual bytes" >&2 ; \ 778 echo " excess: $$((actual - limit)) bytes" >&2; \ 779 exit 1; \ 780 fi 781else 782BOARD_SIZE_CHECK = 783endif 784 785# Statically apply RELA-style relocations (currently arm64 only) 786# This is useful for arm64 where static relocation needs to be performed on 787# the raw binary, but certain simulators only accept an ELF file (but don't 788# do the relocation). 789ifneq ($(CONFIG_STATIC_RELA),) 790# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 791DO_STATIC_RELA = \ 792 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 793 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 794 tools/relocate-rela $(2) $(3) $$start $$end 795else 796DO_STATIC_RELA = 797endif 798 799# Always append ALL so that arch config.mk's can add custom ones 800ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 801 802ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 803ifeq ($(CONFIG_SPL_FSL_PBL),y) 804ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 805else 806ifneq ($(CONFIG_SECURE_BOOT), y) 807# For Secure Boot The Image needs to be signed and Header must also 808# be included. So The image has to be built explicitly 809ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 810endif 811endif 812ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 813ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 814ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 815else 816ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy) 817ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 818else 819ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 820endif 821endif 822ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 823ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 824ifeq ($(CONFIG_SPL_FRAMEWORK),y) 825ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 826endif 827ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 828ifneq ($(CONFIG_SPL_TARGET),) 829ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 830endif 831ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 832ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 833ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 834 835ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),) 836ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 837endif 838 839# Build a combined spl + u-boot image for sunxi 840ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) 841ALL-y += u-boot-sunxi-with-spl.bin 842endif 843 844# enable combined SPL/u-boot/dtb rules for tegra 845ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 846ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 847ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 848endif 849 850# Add optional build target if defined in board/cpu/soc headers 851ifneq ($(CONFIG_BUILD_TARGET),) 852ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 853endif 854 855ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 856ALL-y += init_sp_bss_offset_check 857endif 858 859LDFLAGS_u-boot += $(LDFLAGS_FINAL) 860 861# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 862LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 863 864ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 865LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 866endif 867 868# Normally we fill empty space with 0xff 869quiet_cmd_objcopy = OBJCOPY $@ 870cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 871 $(OBJCOPYFLAGS_$(@F)) $< $@ 872 873# Provide a version which does not do this, for use by EFI 874quiet_cmd_zobjcopy = OBJCOPY $@ 875cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 876 877quiet_cmd_efipayload = OBJCOPY $@ 878cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 879 880MKIMAGEOUTPUT ?= /dev/null 881 882quiet_cmd_mkimage = MKIMAGE $@ 883cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 884 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 885 886quiet_cmd_mkfitimage = MKIMAGE $@ 887cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \ 888 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 889 890quiet_cmd_cat = CAT $@ 891cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 892 893append = cat $(filter-out $< $(PHONY), $^) >> $@ 894 895quiet_cmd_pad_cat = CAT $@ 896cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 897 898cfg: u-boot.cfg 899 900quiet_cmd_cfgcheck = CFGCHK $2 901cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 902 $(srctree)/scripts/config_whitelist.txt $(srctree) 903 904all: $(ALL-y) cfg 905ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 906 @echo "===================== WARNING ======================" 907 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 908 @echo "(possibly in a subsequent patch in your series)" 909 @echo "before sending patches to the mailing list." 910 @echo "====================================================" 911endif 912 @# Check that this build does not use CONFIG options that we do not 913 @# know about unless they are in Kconfig. All the existing CONFIG 914 @# options are whitelisted, so new ones should not be added. 915 $(call cmd,cfgcheck,u-boot.cfg) 916 917PHONY += dtbs 918dtbs: dts/dt.dtb 919 @: 920dts/dt.dtb: u-boot 921 $(Q)$(MAKE) $(build)=dts dtbs 922 923quiet_cmd_copy = COPY $@ 924 cmd_copy = cp $< $@ 925 926ifeq ($(CONFIG_MULTI_DTB_FIT),y) 927 928fit-dtb.blob: dts/dt.dtb FORCE 929 $(call if_changed,mkimage) 930 931MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 932 -a 0 -e 0 -E \ 933 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 934 935u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 936 $(call if_changed,cat) 937 938u-boot.bin: u-boot-fit-dtb.bin FORCE 939 $(call if_changed,copy) 940else ifeq ($(CONFIG_OF_SEPARATE),y) 941u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 942 $(call if_changed,cat) 943 944u-boot.bin: u-boot-dtb.bin FORCE 945 $(call if_changed,copy) 946else 947u-boot.bin: u-boot-nodtb.bin FORCE 948 $(call if_changed,copy) 949endif 950 951%.imx: %.bin 952 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 953 954%.vyb: %.imx 955 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 956 957quiet_cmd_copy = COPY $@ 958 cmd_copy = cp $< $@ 959 960u-boot.dtb: dts/dt.dtb 961 $(call cmd,copy) 962 963OBJCOPYFLAGS_u-boot.hex := -O ihex 964 965OBJCOPYFLAGS_u-boot.srec := -O srec 966 967u-boot.hex u-boot.srec: u-boot FORCE 968 $(call if_changed,objcopy) 969 970OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 971 972u-boot-elf.srec: u-boot.elf FORCE 973 $(call if_changed,objcopy) 974 975OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 976 977spl/u-boot-spl.srec: spl/u-boot-spl FORCE 978 $(call if_changed,objcopy) 979 980OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 981 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 982 983binary_size_check: u-boot-nodtb.bin FORCE 984 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 985 map_size=$(shell cat u-boot.map | \ 986 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 987 | sed 's/0X//g' \ 988 | bc); \ 989 if [ "" != "$$map_size" ]; then \ 990 if test $$map_size -ne $$file_size; then \ 991 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 992 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 993 exit 1; \ 994 fi \ 995 fi 996 997ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 998ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 999subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1000else 1001subtract_sys_malloc_f_len = true 1002endif 1003# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1004# so low that the DTB could probably use 90%+ of the available space, for 1005# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1006# safe for now and tweak this later if space becomes tight. 1007# A rejected alternative would be to check that some absolute minimum stack 1008# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1009# deliberately build-specific, to take account of build-to-build stack usage 1010# differences due to different feature sets, there is no common absolute value 1011# to check against. 1012init_sp_bss_offset_check: u-boot.dtb FORCE 1013 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1014 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1015 $(subtract_sys_malloc_f_len) ; \ 1016 quarter_space=$$(($${space} / 4)) ; \ 1017 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1018 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1019 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1020 exit 1 ; \ 1021 fi 1022endif 1023 1024u-boot-nodtb.bin: u-boot FORCE 1025 $(call if_changed,objcopy) 1026 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1027 $(BOARD_SIZE_CHECK) 1028 1029u-boot.ldr: u-boot 1030 $(CREATE_LDR_ENV) 1031 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1032 $(BOARD_SIZE_CHECK) 1033 1034# binman 1035# --------------------------------------------------------------------------- 1036quiet_cmd_binman = BINMAN $@ 1037cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 1038 -I . -I $(srctree)/board/$(BOARDDIR) $< 1039 1040OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1041 1042OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1043 1044u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1045 $(call if_changed,objcopy) 1046 1047# 1048# U-Boot entry point, needed for booting of full-blown U-Boot 1049# from the SPL U-Boot version. 1050# 1051ifndef CONFIG_SYS_UBOOT_START 1052CONFIG_SYS_UBOOT_START := 0 1053endif 1054 1055# Create a file containing the configuration options the image was built with 1056quiet_cmd_cpp_cfg = CFG $@ 1057cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1058 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 1059 1060# Boards with more complex image requirments can provide an .its source file 1061# or a generator script 1062ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1063U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1064else 1065ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1066U_BOOT_ITS := u-boot.its 1067$(U_BOOT_ITS): FORCE 1068 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1069 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1070endif 1071endif 1072 1073ifdef CONFIG_SPL_LOAD_FIT 1074MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1075 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1076 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1077 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1078else 1079MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1080 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1081 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1082MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1083 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1084 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1085u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1086CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1087endif 1088 1089MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1090 1091MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1092 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1093 1094MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1095 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1096 $(if $(KEYDIR),-k $(KEYDIR)) 1097 1098MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1099 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1100 1101u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1102 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1103 $(call if_changed,mkimage) 1104 1105u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1106 $(call if_changed,mkfitimage) 1107 $(BOARD_SIZE_CHECK) 1108 1109u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1110 $(call if_changed,mkimage) 1111 1112u-boot.sha1: u-boot.bin 1113 tools/ubsha1 u-boot.bin 1114 1115u-boot.dis: u-boot 1116 $(OBJDUMP) -d $< > $@ 1117 1118ifdef CONFIG_TPL 1119SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 1120else 1121SPL_PAYLOAD := u-boot.bin 1122endif 1123 1124OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1125 --pad-to=$(CONFIG_SPL_PAD_TO) 1126u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1127 $(call if_changed,pad_cat) 1128 1129MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1130 1131lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1132 $(call if_changed,mkimage) 1133 1134OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1135 1136lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1137 $(call if_changed,objcopy) 1138 1139OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1140 1141lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1142 $(call if_changed,objcopy) 1143 1144lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1145 $(call if_changed,cat) 1146 1147CLEAN_FILES += lpc32xx-* 1148 1149OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1150 --pad-to=$(CONFIG_TPL_PAD_TO) 1151tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1152 $(call if_changed,pad_cat) 1153 1154SPL: spl/u-boot-spl.bin FORCE 1155 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1156 1157u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1158 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1159 1160MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1161 1162u-boot.ubl: u-boot-with-spl.bin FORCE 1163 $(call if_changed,mkimage) 1164 1165MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1166 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1167 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1168spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1169 $(call if_changed,mkimage) 1170 1171OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1172u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1173 $(call if_changed,pad_cat) 1174 1175u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1176 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1177u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1178 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1179 1180# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1181# Both images are created using mkimage (crc etc), so that the ROM 1182# bootloader can check its integrity. Padding needs to be done to the 1183# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1184# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1185# The resulting image containing both U-Boot images is called u-boot.spr 1186MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1187 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1188spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1189 $(call if_changed,mkimage) 1190 1191OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1192 --gap-fill=0xff 1193u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1194 $(call if_changed,pad_cat) 1195 1196ifneq ($(CONFIG_ARCH_SOCFPGA),) 1197quiet_cmd_socboot = SOCBOOT $@ 1198cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1199 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1200 u-boot.img > $@ || rm -f $@ 1201u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1202 $(call if_changed,socboot) 1203endif 1204 1205# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1206# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1207# the middle. This is handled by binman based on an image description in the 1208# board's device tree. 1209ifneq ($(CONFIG_X86_RESET_VECTOR),) 1210rom: u-boot.rom FORCE 1211 1212refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1213 $(call if_changed,copy) 1214 1215quiet_cmd_ldr = LD $@ 1216cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1217 $(filter-out FORCE,$^) -o $@ 1218 1219u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1220 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1221 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1222 $(call if_changed,binman) 1223 1224OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1225u-boot-x86-16bit.bin: u-boot FORCE 1226 $(call if_changed,objcopy) 1227endif 1228 1229ifneq ($(CONFIG_ARCH_SUNXI),) 1230ifeq ($(CONFIG_ARM64),) 1231u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1232 $(call if_changed,binman) 1233else 1234u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1235 $(call if_changed,cat) 1236endif 1237endif 1238 1239ifneq ($(CONFIG_TEGRA),) 1240ifneq ($(CONFIG_BINMAN),) 1241u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \ 1242 spl/u-boot-spl u-boot.bin FORCE 1243 $(call if_changed,binman) 1244else 1245OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1246u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1247 $(call if_changed,pad_cat) 1248 1249OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1250u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1251 $(call if_changed,pad_cat) 1252 1253u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1254 $(call if_changed,copy) 1255endif # binman 1256endif 1257 1258OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1259u-boot-app.efi: u-boot FORCE 1260 $(call if_changed,zobjcopy) 1261 1262u-boot.bin.o: u-boot.bin FORCE 1263 $(call if_changed,efipayload) 1264 1265u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1266 $(call if_changed_dep,cpp_lds) 1267 1268# Rule to link the EFI payload which contains a stub and a U-Boot binary 1269quiet_cmd_u-boot_payload ?= LD $@ 1270 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1271 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1272 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1273 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1274 1275u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1276 $(call if_changed,u-boot_payload) 1277 1278OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1279u-boot-payload.efi: u-boot-payload FORCE 1280 $(call if_changed,zobjcopy) 1281 1282u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1283 $(call if_changed,cat) 1284 1285#Add a target to create boot binary having SPL binary in PBI format 1286#concatenated with u-boot binary. It is need by PowerPC SoC having 1287#internal SRAM <= 512KB. 1288MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1289 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1290 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1291 1292spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1293 $(call if_changed,mkimage) 1294 1295ifeq ($(ARCH),arm) 1296UBOOT_BINLOAD := u-boot.img 1297else 1298UBOOT_BINLOAD := u-boot.bin 1299endif 1300 1301OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1302 --gap-fill=0xff 1303 1304u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1305 $(call if_changed,pad_cat) 1306 1307# PPC4xx needs the SPL at the end of the image, since the reset vector 1308# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1309# and need to introduce a new build target with the full blown U-Boot 1310# at the start padded up to the start of the SPL image. And then concat 1311# the SPL image to the end. 1312 1313OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1314 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1315u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1316 $(call if_changed,pad_cat) 1317 1318# Create a new ELF from a raw binary file. 1319ifndef PLATFORM_ELFENTRY 1320 PLATFORM_ELFENTRY = "_start" 1321endif 1322quiet_cmd_u-boot-elf ?= LD $@ 1323 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1324 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1325 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1326u-boot.elf: u-boot.bin 1327 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1328 $(call if_changed,u-boot-elf) 1329 1330ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1331 1332# Rule to link u-boot 1333# May be overridden by arch/$(ARCH)/config.mk 1334quiet_cmd_u-boot__ ?= LD $@ 1335 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1336 -T u-boot.lds $(u-boot-init) \ 1337 --start-group $(u-boot-main) --end-group \ 1338 $(PLATFORM_LIBS) -Map u-boot.map; \ 1339 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1340 1341quiet_cmd_smap = GEN common/system_map.o 1342cmd_smap = \ 1343 smap=`$(call SYSTEM_MAP,u-boot) | \ 1344 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1345 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1346 -c $(srctree)/common/system_map.c -o common/system_map.o 1347 1348u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1349 +$(call if_changed,u-boot__) 1350ifeq ($(CONFIG_KALLSYMS),y) 1351 $(call cmd,smap) 1352 $(call cmd,u-boot__) common/system_map.o 1353endif 1354 1355ifeq ($(CONFIG_RISCV),y) 1356 @tools/prelink-riscv $@ 0 1357endif 1358 1359quiet_cmd_sym ?= SYM $@ 1360 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1361u-boot.sym: u-boot FORCE 1362 $(call if_changed,sym) 1363 1364# The actual objects are generated when descending, 1365# make sure no implicit rule kicks in 1366$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1367 1368# Handle descending into subdirectories listed in $(vmlinux-dirs) 1369# Preset locale variables to speed up the build process. Limit locale 1370# tweaks to this spot to avoid wrong language settings when running 1371# make menuconfig etc. 1372# Error messages still appears in the original language 1373 1374PHONY += $(u-boot-dirs) 1375$(u-boot-dirs): prepare scripts 1376 $(Q)$(MAKE) $(build)=$@ 1377 1378tools: prepare 1379# The "tools" are needed early 1380$(filter-out tools, $(u-boot-dirs)): tools 1381# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1382# is "yes"), so compile examples after U-Boot is compiled. 1383examples: $(filter-out examples, $(u-boot-dirs)) 1384 1385define filechk_uboot.release 1386 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1387endef 1388 1389# Store (new) UBOOTRELEASE string in include/config/uboot.release 1390include/config/uboot.release: include/config/auto.conf FORCE 1391 $(call filechk,uboot.release) 1392 1393 1394# Things we need to do before we recursively start building the kernel 1395# or the modules are listed in "prepare". 1396# A multi level approach is used. prepareN is processed before prepareN-1. 1397# archprepare is used in arch Makefiles and when processed asm symlink, 1398# version.h and scripts_basic is processed / created. 1399 1400# Listed in dependency order 1401PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1402 1403# prepare3 is used to check if we are building in a separate output directory, 1404# and if so do: 1405# 1) Check that make has not been executed in the kernel src $(srctree) 1406prepare3: include/config/uboot.release 1407ifneq ($(KBUILD_SRC),) 1408 @$(kecho) ' Using $(srctree) as source for U-Boot' 1409 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1410 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1411 echo >&2 " in the '$(srctree)' directory.";\ 1412 /bin/false; \ 1413 fi; 1414endif 1415 1416# prepare2 creates a makefile if using a separate output directory 1417prepare2: prepare3 outputmakefile 1418 1419prepare1: prepare2 $(version_h) $(timestamp_h) \ 1420 include/config/auto.conf 1421ifeq ($(wildcard $(LDSCRIPT)),) 1422 @echo >&2 " Could not find linker script." 1423 @/bin/false 1424endif 1425 1426ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1427prepare1: $(defaultenv_h) 1428endif 1429 1430archprepare: prepare1 scripts_basic 1431 1432prepare0: archprepare FORCE 1433 $(Q)$(MAKE) $(build)=. 1434 1435# All the preparing.. 1436prepare: prepare0 1437 1438# Generate some files 1439# --------------------------------------------------------------------------- 1440 1441define filechk_version.h 1442 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1443 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1444 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1445 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1446endef 1447 1448# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1449# The BSD date on the other hand behaves different and would produce errors 1450# with the misused '-d' switch. Respect that and search a working date with 1451# well known pre- and suffixes for the GNU variant of date. 1452define filechk_timestamp.h 1453 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1454 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1455 DATE=""; \ 1456 for date in gdate date.gnu date; do \ 1457 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1458 done; \ 1459 if test -n "$${DATE}"; then \ 1460 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1461 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1462 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1463 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1464 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1465 else \ 1466 return 42; \ 1467 fi; \ 1468 else \ 1469 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1470 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1471 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1472 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1473 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1474 fi) 1475endef 1476 1477define filechk_defaultenv.h 1478 (grep -v '^#' | \ 1479 grep -v '^$$' | \ 1480 tr '\n' '\0' | \ 1481 sed -e 's/\\\x0/\n/' | \ 1482 xxd -i ; echo ", 0x00" ; ) 1483endef 1484 1485$(version_h): include/config/uboot.release FORCE 1486 $(call filechk,version.h) 1487 1488$(timestamp_h): $(srctree)/Makefile FORCE 1489 $(call filechk,timestamp.h) 1490 1491$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1492 $(call filechk,defaultenv.h) 1493 1494# --------------------------------------------------------------------------- 1495quiet_cmd_cpp_lds = LDS $@ 1496cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1497 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1498 1499u-boot.lds: $(LDSCRIPT) prepare FORCE 1500 $(call if_changed_dep,cpp_lds) 1501 1502spl/u-boot-spl.bin: spl/u-boot-spl 1503 @: 1504spl/u-boot-spl: tools prepare \ 1505 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1506 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1507 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1508 1509spl/sunxi-spl.bin: spl/u-boot-spl 1510 @: 1511 1512spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1513 @: 1514 1515spl/u-boot-spl.sfp: spl/u-boot-spl 1516 @: 1517 1518spl/boot.bin: spl/u-boot-spl 1519 @: 1520 1521tpl/u-boot-tpl.bin: tools prepare \ 1522 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1523 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1524 1525TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1526 1527FIND := find 1528FINDFLAGS := -L 1529 1530tags ctags: 1531 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1532 -name '*.[chS]' -print` 1533 ln -s ctags tags 1534 1535etags: 1536 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1537 -name '*.[chS]' -print` 1538cscope: 1539 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1540 cscope.files 1541 cscope -b -q -k 1542 1543SYSTEM_MAP = \ 1544 $(NM) $1 | \ 1545 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1546 LC_ALL=C sort 1547System.map: u-boot 1548 @$(call SYSTEM_MAP,$<) > $@ 1549 1550######################################################################### 1551 1552# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1553# R_AARCH64_RELATIVE (64-bit). 1554checkarmreloc: u-boot 1555 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1556 grep R_A | sort -u`"; \ 1557 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1558 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1559 echo "$< contains unexpected relocations: $$RELOC"; \ 1560 false; \ 1561 fi 1562 1563envtools: scripts_basic $(version_h) $(timestamp_h) 1564 $(Q)$(MAKE) $(build)=tools/env 1565 1566tools-only: scripts_basic $(version_h) $(timestamp_h) 1567 $(Q)$(MAKE) $(build)=tools 1568 1569tools-all: export HOST_TOOLS_ALL=y 1570tools-all: envtools tools ; 1571 1572cross_tools: export CROSS_BUILD_TOOLS=y 1573cross_tools: tools ; 1574 1575.PHONY : CHANGELOG 1576CHANGELOG: 1577 git log --no-merges U-Boot-1_1_5.. | \ 1578 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1579 1580######################################################################### 1581 1582### 1583# Cleaning is done on three levels. 1584# make clean Delete most generated files 1585# Leave enough to build external modules 1586# make mrproper Delete the current configuration, and all generated files 1587# make distclean Remove editor backup files, patch leftover files and the like 1588 1589# Directories & files removed with 'make clean' 1590CLEAN_DIRS += $(MODVERDIR) \ 1591 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1592 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1593 1594CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1595 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1596 1597# Directories & files removed with 'make mrproper' 1598MRPROPER_DIRS += include/config include/generated spl tpl \ 1599 .tmp_objdiff 1600MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1601 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1602 1603# clean - Delete most, but leave enough to build external modules 1604# 1605clean: rm-dirs := $(CLEAN_DIRS) 1606clean: rm-files := $(CLEAN_FILES) 1607 1608clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1609 1610clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1611 1612PHONY += $(clean-dirs) clean archclean 1613$(clean-dirs): 1614 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1615 1616# TODO: Do not use *.cfgtmp 1617clean: $(clean-dirs) 1618 $(call cmd,rmdirs) 1619 $(call cmd,rmfiles) 1620 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1621 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1622 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1623 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1624 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 1625 -o -name '*.symtypes' -o -name 'modules.order' \ 1626 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1627 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1628 -o -name '*.gcno' \) -type f -print | xargs rm -f 1629 1630# mrproper - Delete all generated files, including .config 1631# 1632mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1633mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1634mrproper-dirs := $(addprefix _mrproper_,scripts) 1635 1636PHONY += $(mrproper-dirs) mrproper archmrproper 1637$(mrproper-dirs): 1638 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1639 1640mrproper: clean $(mrproper-dirs) 1641 $(call cmd,rmdirs) 1642 $(call cmd,rmfiles) 1643 @rm -f arch/*/include/asm/arch 1644 1645# distclean 1646# 1647PHONY += distclean 1648 1649distclean: mrproper 1650 @find $(srctree) $(RCS_FIND_IGNORE) \ 1651 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1652 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1653 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1654 -o -name '*.pyc' \) \ 1655 -type f -print | xargs rm -f 1656 @rm -f boards.cfg 1657 1658backup: 1659 F=`basename $(srctree)` ; cd .. ; \ 1660 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1661 1662help: 1663 @echo 'Cleaning targets:' 1664 @echo ' clean - Remove most generated files but keep the config' 1665 @echo ' mrproper - Remove all generated files + config + various backup files' 1666 @echo ' distclean - mrproper + remove editor backup and patch files' 1667 @echo '' 1668 @echo 'Configuration targets:' 1669 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1670 @echo '' 1671 @echo 'Other generic targets:' 1672 @echo ' all - Build all necessary images depending on configuration' 1673 @echo ' tests - Build U-Boot for sandbox and run tests' 1674 @echo '* u-boot - Build the bare u-boot' 1675 @echo ' dir/ - Build all files in dir and below' 1676 @echo ' dir/file.[oisS] - Build specified target only' 1677 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1678 @echo ' (requires a recent binutils and recent build (System.map))' 1679 @echo ' tags/ctags - Generate ctags file for editors' 1680 @echo ' etags - Generate etags file for editors' 1681 @echo ' cscope - Generate cscope index' 1682 @echo ' ubootrelease - Output the release version string (use with make -s)' 1683 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1684 @echo " cfg - Don't build, just create the .cfg files" 1685 @echo " envtools - Build only the target-side environment tools" 1686 @echo '' 1687 @echo 'Static analysers' 1688 @echo ' checkstack - Generate a list of stack hogs' 1689 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1690 @echo '' 1691 @echo 'Documentation targets:' 1692 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1693 @echo '' 1694 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1695 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1696 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1697 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1698 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1699 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1700 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1701 @echo ' 1: warnings which may be relevant and do not occur too often' 1702 @echo ' 2: warnings which occur quite often but may still be relevant' 1703 @echo ' 3: more obscure warnings, can most likely be ignored' 1704 @echo ' Multiple levels can be combined with W=12 or W=123' 1705 @echo '' 1706 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1707 @echo 'For further info see the ./README file' 1708 1709tests: 1710 $(srctree)/test/run 1711 1712# Documentation targets 1713# --------------------------------------------------------------------------- 1714%docs: scripts_basic FORCE 1715 $(Q)$(MAKE) $(build)=scripts build_docproc 1716 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1717 1718endif #ifeq ($(config-targets),1) 1719endif #ifeq ($(mixed-targets),1) 1720 1721PHONY += checkstack ubootrelease ubootversion 1722 1723checkstack: 1724 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1725 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1726 1727ubootrelease: 1728 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1729 1730ubootversion: 1731 @echo $(UBOOTVERSION) 1732 1733# Single targets 1734# --------------------------------------------------------------------------- 1735# Single targets are compatible with: 1736# - build with mixed source and output 1737# - build with separate output dir 'make O=...' 1738# - external modules 1739# 1740# target-dir => where to store outputfile 1741# build-dir => directory in kernel source tree to use 1742 1743ifeq ($(KBUILD_EXTMOD),) 1744 build-dir = $(patsubst %/,%,$(dir $@)) 1745 target-dir = $(dir $@) 1746else 1747 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1748 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1749 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1750endif 1751 1752%.s: %.c prepare scripts FORCE 1753 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1754%.i: %.c prepare scripts FORCE 1755 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1756%.o: %.c prepare scripts FORCE 1757 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1758%.lst: %.c prepare scripts FORCE 1759 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1760%.s: %.S prepare scripts FORCE 1761 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1762%.o: %.S prepare scripts FORCE 1763 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1764%.symtypes: %.c prepare scripts FORCE 1765 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1766 1767# Modules 1768/: prepare scripts FORCE 1769 $(cmd_crmodverdir) 1770 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1771 $(build)=$(build-dir) 1772%/: prepare scripts FORCE 1773 $(cmd_crmodverdir) 1774 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1775 $(build)=$(build-dir) 1776%.ko: prepare scripts FORCE 1777 $(cmd_crmodverdir) 1778 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1779 $(build)=$(build-dir) $(@:.ko=.o) 1780 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1781 1782# Consistency checks 1783# --------------------------------------------------------------------------- 1784 1785PHONY += coccicheck 1786 1787coccicheck: 1788 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1789 1790# FIXME Should go into a make.lib or something 1791# =========================================================================== 1792 1793quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1794 cmd_rmdirs = rm -rf $(rm-dirs) 1795 1796quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1797 cmd_rmfiles = rm -f $(rm-files) 1798 1799# read all saved command lines 1800 1801targets := $(wildcard $(sort $(targets))) 1802cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1803 1804ifneq ($(cmd_files),) 1805 $(cmd_files): ; # Do not try to update included dependency files 1806 include $(cmd_files) 1807endif 1808 1809endif # skip-makefile 1810 1811PHONY += FORCE 1812FORCE: 1813 1814# Declare the contents of the .PHONY variable as phony. We keep that 1815# information in a variable so we can use it in if_changed and friends. 1816.PHONY: $(PHONY) 1817