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