1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2019 4PATCHLEVEL = 04 5SUBLEVEL = 6EXTRAVERSION = 7NAME = 8 9# *DOCUMENTATION* 10# To see a list of typical targets execute "make help" 11# More info can be located in ./README 12# Comments in this file are targeted only to the developer, do not 13# expect to learn how to build the kernel reading this file. 14 15# o Do not use make's built-in rules and variables 16# (this increases performance and avoids hard-to-debug behaviour); 17# o Look for make include files relative to root of kernel src 18MAKEFLAGS += -rR --include-dir=$(CURDIR) 19 20# Avoid funny character set dependencies 21unexport LC_ALL 22LC_COLLATE=C 23LC_NUMERIC=C 24export LC_COLLATE LC_NUMERIC 25 26# Avoid interference with shell env settings 27unexport GREP_OPTIONS 28 29# We are using a recursive build, so we need to do a little thinking 30# to get the ordering right. 31# 32# Most importantly: sub-Makefiles should only ever modify files in 33# their own directory. If in some directory we have a dependency on 34# a file in another dir (which doesn't happen often, but it's often 35# unavoidable when linking the built-in.o targets which finally 36# turn into vmlinux), we will call a sub make in that other dir, and 37# after that we are sure that everything which is in that other dir 38# is now up to date. 39# 40# The only cases where we need to modify files which have global 41# effects are thus separated out and done before the recursive 42# descending is started. They are now explicitly listed as the 43# prepare rule. 44 45# Beautify output 46# --------------------------------------------------------------------------- 47# 48# Normally, we echo the whole command before executing it. By making 49# that echo $($(quiet)$(cmd)), we now have the possibility to set 50# $(quiet) to choose other forms of output instead, e.g. 51# 52# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 53# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 54# 55# If $(quiet) is empty, the whole command will be printed. 56# If it is set to "quiet_", only the short version will be printed. 57# If it is set to "silent_", nothing will be printed at all, since 58# the variable $(silent_cmd_cc_o_c) doesn't exist. 59# 60# A simple variant is to prefix commands with $(Q) - that's useful 61# for commands that shall be hidden in non-verbose mode. 62# 63# $(Q)ln $@ :< 64# 65# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 66# If KBUILD_VERBOSE equals 1 then the above command is displayed. 67# 68# To put more focus on warnings, be less verbose as default 69# Use 'make V=1' to see the full commands 70 71ifeq ("$(origin V)", "command line") 72 KBUILD_VERBOSE = $(V) 73endif 74ifndef KBUILD_VERBOSE 75 KBUILD_VERBOSE = 0 76endif 77 78ifeq ($(KBUILD_VERBOSE),1) 79 quiet = 80 Q = 81else 82 quiet=quiet_ 83 Q = @ 84endif 85 86# If the user is running make -s (silent mode), suppress echoing of 87# commands 88 89ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 90ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 91 quiet=silent_ 92endif 93else # make-3.8x 94ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 95 quiet=silent_ 96endif 97endif 98 99export quiet Q KBUILD_VERBOSE 100 101# kbuild supports saving output files in a separate directory. 102# To locate output files in a separate directory two syntaxes are supported. 103# In both cases the working directory must be the root of the kernel src. 104# 1) O= 105# Use "make O=dir/to/store/output/files/" 106# 107# 2) Set KBUILD_OUTPUT 108# Set the environment variable KBUILD_OUTPUT to point to the directory 109# where the output files shall be placed. 110# export KBUILD_OUTPUT=dir/to/store/output/files/ 111# make 112# 113# The O= assignment takes precedence over the KBUILD_OUTPUT environment 114# variable. 115 116# KBUILD_SRC is set on invocation of make in OBJ directory 117# KBUILD_SRC is not intended to be used by the regular user (for now) 118ifeq ($(KBUILD_SRC),) 119 120# OK, Make called in directory where kernel src resides 121# Do we want to locate output files in a separate directory? 122ifeq ("$(origin O)", "command line") 123 KBUILD_OUTPUT := $(O) 124endif 125 126# That's our default target when none is given on the command line 127PHONY := _all 128_all: 129 130# Cancel implicit rules on top Makefile 131$(CURDIR)/Makefile Makefile: ; 132 133ifneq ($(KBUILD_OUTPUT),) 134# Invoke a second make in the output directory, passing relevant variables 135# check that the output directory actually exists 136saved-output := $(KBUILD_OUTPUT) 137KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 138 && /bin/pwd) 139$(if $(KBUILD_OUTPUT),, \ 140 $(error failed to create output directory "$(saved-output)")) 141 142PHONY += $(MAKECMDGOALS) sub-make 143 144$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 145 @: 146 147sub-make: FORCE 148 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 149 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 150 151# Leave processing to above invocation of make 152skip-makefile := 1 153endif # ifneq ($(KBUILD_OUTPUT),) 154endif # ifeq ($(KBUILD_SRC),) 155 156# We process the rest of the Makefile if this is the final invocation of make 157ifeq ($(skip-makefile),) 158 159# Do not print "Entering directory ...", 160# but we want to display it when entering to the output directory 161# so that IDEs/editors are able to understand relative filenames. 162MAKEFLAGS += --no-print-directory 163 164# Call a source code checker (by default, "sparse") as part of the 165# C compilation. 166# 167# Use 'make C=1' to enable checking of only re-compiled files. 168# Use 'make C=2' to enable checking of *all* source files, regardless 169# of whether they are re-compiled or not. 170# 171# See the file "Documentation/sparse.txt" for more details, including 172# where to get the "sparse" utility. 173 174ifeq ("$(origin C)", "command line") 175 KBUILD_CHECKSRC = $(C) 176endif 177ifndef KBUILD_CHECKSRC 178 KBUILD_CHECKSRC = 0 179endif 180 181# Use make M=dir to specify directory of external module to build 182# Old syntax make ... SUBDIRS=$PWD is still supported 183# Setting the environment variable KBUILD_EXTMOD take precedence 184ifdef SUBDIRS 185 KBUILD_EXTMOD ?= $(SUBDIRS) 186endif 187 188ifeq ("$(origin M)", "command line") 189 KBUILD_EXTMOD := $(M) 190endif 191 192# If building an external module we do not care about the all: rule 193# but instead _all depend on modules 194PHONY += all 195ifeq ($(KBUILD_EXTMOD),) 196_all: all 197else 198_all: modules 199endif 200 201ifeq ($(KBUILD_SRC),) 202 # building in the source tree 203 srctree := . 204else 205 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 206 # building in a subdirectory of the source tree 207 srctree := .. 208 else 209 srctree := $(KBUILD_SRC) 210 endif 211endif 212objtree := . 213src := $(srctree) 214obj := $(objtree) 215 216VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 217 218export srctree objtree VPATH 219 220# Make sure CDPATH settings don't interfere 221unexport CDPATH 222 223######################################################################### 224 225HOSTARCH := $(shell uname -m | \ 226 sed -e s/i.86/x86/ \ 227 -e s/sun4u/sparc64/ \ 228 -e s/arm.*/arm/ \ 229 -e s/sa110/arm/ \ 230 -e s/ppc64/powerpc/ \ 231 -e s/ppc/powerpc/ \ 232 -e s/macppc/powerpc/\ 233 -e s/sh.*/sh/) 234 235HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 236 sed -e 's/\(cygwin\).*/cygwin/') 237 238export HOSTARCH HOSTOS 239 240######################################################################### 241 242# set default to nothing for native builds 243ifeq ($(HOSTARCH),$(ARCH)) 244CROSS_COMPILE ?= 245endif 246 247KCONFIG_CONFIG ?= .config 248export KCONFIG_CONFIG 249 250# SHELL used by kbuild 251CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 252 else if [ -x /bin/bash ]; then echo /bin/bash; \ 253 else echo sh; fi ; fi) 254 255HOSTCC = cc 256HOSTCXX = c++ 257HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 258 $(if $(CONFIG_TOOLS_DEBUG),-g) 259HOSTCXXFLAGS = -O2 260 261# With the move to GCC 6, we have implicitly upgraded our language 262# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 263# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 264# have older compilers as their default, so we make it explicit for 265# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 266CSTD_FLAG := -std=gnu11 267ifeq ($(HOSTOS),linux) 268HOSTCFLAGS += $(CSTD_FLAG) 269endif 270 271ifeq ($(HOSTOS),cygwin) 272HOSTCFLAGS += -ansi 273endif 274 275# Mac OS X / Darwin's C preprocessor is Apple specific. It 276# generates numerous errors and warnings. We want to bypass it 277# and use GNU C's cpp. To do this we pass the -traditional-cpp 278# option to the compiler. Note that the -traditional-cpp flag 279# DOES NOT have the same semantics as GNU C's flag, all it does 280# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 281# 282# Apple's linker is similar, thanks to the new 2 stage linking 283# multiple symbol definitions are treated as errors, hence the 284# -multiply_defined suppress option to turn off this error. 285# 286ifeq ($(HOSTOS),darwin) 287# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 288DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 289DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 290 291os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 292 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 293 294os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \ 295 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 296 297# Snow Leopards build environment has no longer restrictions as described above 298HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 299HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 300HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 301 302# since Lion (10.7) ASLR is on by default, but we use linker generated lists 303# in some host tools which is a problem then ... so disable ASLR for these 304# tools 305HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 306 307# macOS Mojave (10.14.X) 308# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" 309HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") 310endif 311 312# Decide whether to build built-in, modular, or both. 313# Normally, just do built-in. 314 315KBUILD_MODULES := 316KBUILD_BUILTIN := 1 317 318# If we have only "make modules", don't compile built-in objects. 319# When we're building modules with modversions, we need to consider 320# the built-in objects during the descend as well, in order to 321# make sure the checksums are up to date before we record them. 322 323ifeq ($(MAKECMDGOALS),modules) 324 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 325endif 326 327# If we have "make <whatever> modules", compile modules 328# in addition to whatever we do anyway. 329# Just "make" or "make all" shall build modules as well 330 331# U-Boot does not need modules 332#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 333# KBUILD_MODULES := 1 334#endif 335 336#ifeq ($(MAKECMDGOALS),) 337# KBUILD_MODULES := 1 338#endif 339 340export KBUILD_MODULES KBUILD_BUILTIN 341export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 342 343# We need some generic definitions (do not try to remake the file). 344scripts/Kbuild.include: ; 345include scripts/Kbuild.include 346 347# Make variables (CC, etc...) 348 349AS = $(CROSS_COMPILE)as 350# Always use GNU ld 351ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 352LD = $(CROSS_COMPILE)ld.bfd 353else 354LD = $(CROSS_COMPILE)ld 355endif 356CC = $(CROSS_COMPILE)gcc 357CPP = $(CC) -E 358AR = $(CROSS_COMPILE)ar 359NM = $(CROSS_COMPILE)nm 360LDR = $(CROSS_COMPILE)ldr 361STRIP = $(CROSS_COMPILE)strip 362OBJCOPY = $(CROSS_COMPILE)objcopy 363OBJDUMP = $(CROSS_COMPILE)objdump 364LEX = flex 365YACC = bison 366AWK = awk 367PERL = perl 368PYTHON ?= python 369PYTHON2 = python2 370PYTHON3 = python3 371DTC ?= $(objtree)/scripts/dtc/dtc 372CHECK = sparse 373 374CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 375 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 376 377KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 378 379KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 380 -Wno-format-security \ 381 -fno-builtin -ffreestanding $(CSTD_FLAG) 382KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 383KBUILD_AFLAGS := -D__ASSEMBLY__ 384 385# Don't generate position independent code 386KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 387KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 388 389# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 390UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 391UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 392 393export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 394export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 395export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 396export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 397export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 398export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 399 400export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 401export KBUILD_CFLAGS KBUILD_AFLAGS 402 403# When compiling out-of-tree modules, put MODVERDIR in the module 404# tree rather than in the kernel tree. The kernel tree might 405# even be read-only. 406export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 407 408# Files to ignore in find ... statements 409 410export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 411 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 412 -prune -o 413export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 414 --exclude CVS --exclude .pc --exclude .hg --exclude .git 415 416# =========================================================================== 417# Rules shared between *config targets and build targets 418 419# Basic helpers built in scripts/ 420PHONY += scripts_basic 421scripts_basic: 422 $(Q)$(MAKE) $(build)=scripts/basic 423 $(Q)rm -f .tmp_quiet_recordmcount 424 425# To avoid any implicit rule to kick in, define an empty command. 426scripts/basic/%: scripts_basic ; 427 428PHONY += outputmakefile 429# outputmakefile generates a Makefile in the output directory, if using a 430# separate output directory. This allows convenient use of make in the 431# output directory. 432outputmakefile: 433ifneq ($(KBUILD_SRC),) 434 $(Q)ln -fsn $(srctree) source 435 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 436 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 437endif 438 439# To make sure we do not include .config for any of the *config targets 440# catch them early, and hand them over to scripts/kconfig/Makefile 441# It is allowed to specify more targets when calling make, including 442# mixing *config targets and build targets. 443# For example 'make oldconfig all'. 444# Detect when mixed targets is specified, and make a second invocation 445# of make so .config is not included in this case either (for *config). 446 447version_h := include/generated/version_autogenerated.h 448timestamp_h := include/generated/timestamp_autogenerated.h 449defaultenv_h := include/generated/defaultenv_autogenerated.h 450 451no-dot-config-targets := clean clobber mrproper distclean \ 452 help %docs check% coccicheck \ 453 ubootversion backup tests check qcheck 454 455config-targets := 0 456mixed-targets := 0 457dot-config := 1 458 459ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 460 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 461 dot-config := 0 462 endif 463endif 464 465ifeq ($(KBUILD_EXTMOD),) 466 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 467 config-targets := 1 468 ifneq ($(words $(MAKECMDGOALS)),1) 469 mixed-targets := 1 470 endif 471 endif 472endif 473 474ifeq ($(mixed-targets),1) 475# =========================================================================== 476# We're called with mixed targets (*config and build targets). 477# Handle them one by one. 478 479PHONY += $(MAKECMDGOALS) __build_one_by_one 480 481$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 482 @: 483 484__build_one_by_one: 485 $(Q)set -e; \ 486 for i in $(MAKECMDGOALS); do \ 487 $(MAKE) -f $(srctree)/Makefile $$i; \ 488 done 489 490else 491ifeq ($(config-targets),1) 492# =========================================================================== 493# *config targets only - make sure prerequisites are updated, and descend 494# in scripts/kconfig to make the *config target 495 496KBUILD_DEFCONFIG := sandbox_defconfig 497export KBUILD_DEFCONFIG KBUILD_KCONFIG 498 499config: scripts_basic outputmakefile FORCE 500 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 501 502%config: scripts_basic outputmakefile FORCE 503 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 504 505else 506# =========================================================================== 507# Build targets only - this includes vmlinux, arch specific targets, clean 508# targets and others. In general all targets except *config targets. 509 510# Additional helpers built in scripts/ 511# Carefully list dependencies so we do not try to build scripts twice 512# in parallel 513PHONY += scripts 514scripts: scripts_basic include/config/auto.conf 515 $(Q)$(MAKE) $(build)=$(@) 516 517ifeq ($(dot-config),1) 518# Read in config 519-include include/config/auto.conf 520 521# Read in dependencies to all Kconfig* files, make sure to run 522# oldconfig if changes are detected. 523-include include/config/auto.conf.cmd 524 525# To avoid any implicit rule to kick in, define an empty command 526$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 527 528# If .config is newer than include/config/auto.conf, someone tinkered 529# with it and forgot to run make oldconfig. 530# if auto.conf.cmd is missing then we are probably in a cleaned tree so 531# we execute the config step to be sure to catch updated Kconfig files 532include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 533 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 534 @# If the following part fails, include/config/auto.conf should be 535 @# deleted so "make silentoldconfig" will be re-run on the next build. 536 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 537 { rm -f include/config/auto.conf; false; } 538 @# include/config.h has been updated after "make silentoldconfig". 539 @# We need to touch include/config/auto.conf so it gets newer 540 @# than include/config.h. 541 @# Otherwise, 'make silentoldconfig' would be invoked twice. 542 $(Q)touch include/config/auto.conf 543 544u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 545 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 546 547-include include/autoconf.mk 548-include include/autoconf.mk.dep 549 550# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 551# is up-to-date. When we switch to a different board configuration, old CONFIG 552# macros are still remaining in include/config/auto.conf. Without the following 553# gimmick, wrong config.mk would be included leading nasty warnings/errors. 554ifneq ($(wildcard $(KCONFIG_CONFIG)),) 555ifneq ($(wildcard include/config/auto.conf),) 556autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 557 include/config/auto.conf) 558ifeq ($(autoconf_is_old),) 559include config.mk 560include arch/$(ARCH)/Makefile 561endif 562endif 563endif 564 565# These are set by the arch-specific config.mk. Make sure they are exported 566# so they can be used when building an EFI application. 567export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 568export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 569export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 570export CFLAGS_EFI # Compiler flags to add when building EFI app 571export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 572export EFI_TARGET # binutils target if EFI is natively supported 573 574# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 575# that (or fail if absent). Otherwise, search for a linker script in a 576# standard location. 577 578ifndef LDSCRIPT 579 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 580 ifdef CONFIG_SYS_LDSCRIPT 581 # need to strip off double quotes 582 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 583 endif 584endif 585 586# If there is no specified link script, we look in a number of places for it 587ifndef LDSCRIPT 588 ifeq ($(wildcard $(LDSCRIPT)),) 589 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 590 endif 591 ifeq ($(wildcard $(LDSCRIPT)),) 592 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 593 endif 594 ifeq ($(wildcard $(LDSCRIPT)),) 595 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 596 endif 597endif 598 599else 600# Dummy target needed, because used as prerequisite 601include/config/auto.conf: ; 602endif # $(dot-config) 603 604# 605# Xtensa linker script cannot be preprocessed with -ansi because of 606# preprocessor operations on strings that don't make C identifiers. 607# 608ifeq ($(CONFIG_XTENSA),) 609LDPPFLAGS += -ansi 610endif 611 612ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 613KBUILD_CFLAGS += -Os 614else 615KBUILD_CFLAGS += -O2 616endif 617 618KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 619KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 620 621# change __FILE__ to the relative path from the srctree 622KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 623 624KBUILD_CFLAGS += -g 625# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 626# option to the assembler. 627KBUILD_AFLAGS += -g 628 629# Report stack usage if supported 630# ARC tools based on GCC 7.1 has an issue with stack usage 631# with naked functions, see commit message for more details 632ifndef CONFIG_ARC 633ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 634 KBUILD_CFLAGS += -fstack-usage 635endif 636endif 637 638KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 639ifeq ($(cc-name),clang) 640KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 641KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 642KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 643KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 644KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 645endif 646 647# turn jbsr into jsr for m68k 648ifeq ($(ARCH),m68k) 649ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 650KBUILD_AFLAGS += -Wa,-gstabs,-S 651endif 652endif 653 654# Prohibit date/time macros, which would make the build non-deterministic 655KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 656 657include scripts/Makefile.extrawarn 658 659# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 660KBUILD_CPPFLAGS += $(KCPPFLAGS) 661KBUILD_AFLAGS += $(KAFLAGS) 662KBUILD_CFLAGS += $(KCFLAGS) 663 664# Use UBOOTINCLUDE when you must reference the include/ directory. 665# Needed to be compatible with the O= option 666UBOOTINCLUDE := \ 667 -Iinclude \ 668 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 669 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 670 $(if $(CONFIG_HAS_THUMB2),, \ 671 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 672 -I$(srctree)/arch/$(ARCH)/include \ 673 -include $(srctree)/include/linux/kconfig.h 674 675NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 676CHECKFLAGS += $(NOSTDINC_FLAGS) 677 678# FIX ME 679cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 680 $(NOSTDINC_FLAGS) 681c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 682 683######################################################################### 684# U-Boot objects....order is important (i.e. start must be first) 685 686HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 687 688libs-y += lib/ 689libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 690libs-$(CONFIG_OF_EMBED) += dts/ 691libs-y += fs/ 692libs-y += net/ 693libs-y += disk/ 694libs-y += drivers/ 695libs-y += drivers/dma/ 696libs-y += drivers/gpio/ 697libs-y += drivers/i2c/ 698libs-y += drivers/mtd/ 699libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/ 700libs-y += drivers/mtd/onenand/ 701libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 702libs-y += drivers/mtd/spi/ 703libs-y += drivers/net/ 704libs-y += drivers/net/phy/ 705libs-y += drivers/power/ \ 706 drivers/power/domain/ \ 707 drivers/power/fuel_gauge/ \ 708 drivers/power/mfd/ \ 709 drivers/power/pmic/ \ 710 drivers/power/battery/ \ 711 drivers/power/regulator/ 712libs-y += drivers/spi/ 713libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 714libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 715libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 716libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 717libs-y += drivers/serial/ 718libs-y += drivers/usb/dwc3/ 719libs-y += drivers/usb/common/ 720libs-y += drivers/usb/emul/ 721libs-y += drivers/usb/eth/ 722libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 723libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 724libs-y += drivers/usb/host/ 725libs-y += drivers/usb/musb/ 726libs-y += drivers/usb/musb-new/ 727libs-y += drivers/usb/phy/ 728libs-y += drivers/usb/ulpi/ 729libs-y += cmd/ 730libs-y += common/ 731libs-y += env/ 732libs-$(CONFIG_API) += api/ 733libs-$(CONFIG_HAS_POST) += post/ 734libs-$(CONFIG_UNIT_TEST) += test/ test/dm/ 735libs-$(CONFIG_UT_ENV) += test/env/ 736libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 737 738libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 739 740libs-y := $(sort $(libs-y)) 741 742u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 743 744u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 745 746libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 747 748u-boot-init := $(head-y) 749u-boot-main := $(libs-y) 750 751 752# Add GCC lib 753ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 754PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 755else 756PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 757endif 758PLATFORM_LIBS += $(PLATFORM_LIBGCC) 759 760ifdef CONFIG_CC_COVERAGE 761KBUILD_CFLAGS += --coverage 762PLATFORM_LIBGCC += -lgcov 763endif 764 765export PLATFORM_LIBS 766export PLATFORM_LIBGCC 767 768# Special flags for CPP when processing the linker script. 769# Pass the version down so we can handle backwards compatibility 770# on the fly. 771LDPPFLAGS += \ 772 -include $(srctree)/include/u-boot/u-boot.lds.h \ 773 -DCPUDIR=$(CPUDIR) \ 774 $(shell $(LD) --version | \ 775 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 776 777######################################################################### 778######################################################################### 779 780ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 781BOARD_SIZE_CHECK = \ 782 @actual=`wc -c $@ | awk '{print $$1}'`; \ 783 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 784 if test $$actual -gt $$limit; then \ 785 echo "$@ exceeds file size limit:" >&2 ; \ 786 echo " limit: $$limit bytes" >&2 ; \ 787 echo " actual: $$actual bytes" >&2 ; \ 788 echo " excess: $$((actual - limit)) bytes" >&2; \ 789 exit 1; \ 790 fi 791else 792BOARD_SIZE_CHECK = 793endif 794 795# Statically apply RELA-style relocations (currently arm64 only) 796# This is useful for arm64 where static relocation needs to be performed on 797# the raw binary, but certain simulators only accept an ELF file (but don't 798# do the relocation). 799ifneq ($(CONFIG_STATIC_RELA),) 800# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 801DO_STATIC_RELA = \ 802 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 803 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 804 tools/relocate-rela $(2) $(3) $$start $$end 805else 806DO_STATIC_RELA = 807endif 808 809# Always append ALL so that arch config.mk's can add custom ones 810ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 811 812ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 813ifeq ($(CONFIG_SPL_FSL_PBL),y) 814ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 815else 816ifneq ($(CONFIG_SECURE_BOOT), y) 817# For Secure Boot The Image needs to be signed and Header must also 818# be included. So The image has to be built explicitly 819ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 820endif 821endif 822ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 823ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 824ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 825else 826ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy) 827ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 828else 829ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 830endif 831endif 832ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 833ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 834ifeq ($(CONFIG_SPL_FRAMEWORK),y) 835ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 836endif 837ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 838ifneq ($(CONFIG_SPL_TARGET),) 839ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 840endif 841ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 842ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 843ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 844 845ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),) 846ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 847endif 848 849# Build a combined spl + u-boot image for sunxi 850ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) 851ALL-y += u-boot-sunxi-with-spl.bin 852endif 853 854# enable combined SPL/u-boot/dtb rules for tegra 855ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 856ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 857ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 858endif 859 860ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 861 862# Add optional build target if defined in board/cpu/soc headers 863ifneq ($(CONFIG_BUILD_TARGET),) 864ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 865endif 866 867ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 868ALL-y += init_sp_bss_offset_check 869endif 870 871ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 872ALL-y += u-boot-with-dtb.bin 873endif 874 875LDFLAGS_u-boot += $(LDFLAGS_FINAL) 876 877# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 878LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 879 880ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 881LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 882endif 883 884# Normally we fill empty space with 0xff 885quiet_cmd_objcopy = OBJCOPY $@ 886cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 887 $(OBJCOPYFLAGS_$(@F)) $< $@ 888 889# Provide a version which does not do this, for use by EFI 890quiet_cmd_zobjcopy = OBJCOPY $@ 891cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 892 893quiet_cmd_efipayload = OBJCOPY $@ 894cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 895 896MKIMAGEOUTPUT ?= /dev/null 897 898quiet_cmd_mkimage = MKIMAGE $@ 899cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 900 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 901 902quiet_cmd_mkfitimage = MKIMAGE $@ 903cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\ 904 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 905 906quiet_cmd_cat = CAT $@ 907cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 908 909append = cat $(filter-out $< $(PHONY), $^) >> $@ 910 911quiet_cmd_pad_cat = CAT $@ 912cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 913 914cfg: u-boot.cfg 915 916quiet_cmd_cfgcheck = CFGCHK $2 917cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 918 $(srctree)/scripts/config_whitelist.txt $(srctree) 919 920all: $(ALL-y) 921ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 922 @echo >&2 "===================== WARNING ======================" 923 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 924 @echo >&2 "(possibly in a subsequent patch in your series)" 925 @echo >&2 "before sending patches to the mailing list." 926 @echo >&2 "====================================================" 927endif 928ifeq ($(CONFIG_MMC),y) 929ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 930 @echo >&2 "===================== WARNING ======================" 931 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update" 932 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release." 933 @echo >&2 "Failure to update by the deadline may result in board removal." 934 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 935 @echo >&2 "====================================================" 936endif 937endif 938ifeq ($(CONFIG_USB),y) 939ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 940 @echo >&2 "===================== WARNING ======================" 941 @echo >&2 "This board does not use CONFIG_DM_USB. Please update" 942 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release." 943 @echo >&2 "Failure to update by the deadline may result in board removal." 944 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 945 @echo >&2 "====================================================" 946endif 947endif 948ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y) 949ifneq ($(CONFIG_DM_SCSI),y) 950 @echo >&2 "===================== WARNING ======================" 951 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update" 952 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release." 953 @echo >&2 "Failure to update by the deadline may result in board removal." 954 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 955 @echo >&2 "====================================================" 956endif 957endif 958ifeq ($(CONFIG_PCI),y) 959ifneq ($(CONFIG_DM_PCI),y) 960 @echo >&2 "===================== WARNING ======================" 961 @echo >&2 "This board does not use CONFIG_DM_PCI Please update" 962 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release." 963 @echo >&2 "Failure to update by the deadline may result in board removal." 964 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 965 @echo >&2 "====================================================" 966endif 967endif 968ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),) 969ifneq ($(CONFIG_DM_VIDEO),y) 970 @echo >&2 "===================== WARNING ======================" 971 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update" 972 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release." 973 @echo >&2 "Failure to update by the deadline may result in board removal." 974 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 975 @echo >&2 "====================================================" 976endif 977endif 978ifeq ($(CONFIG_OF_EMBED),y) 979 @echo >&2 "===================== WARNING ======================" 980 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 981 @echo >&2 "be used for debugging purposes. Please use" 982 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 983 @echo >&2 "See doc/README.fdt-control for more info." 984 @echo >&2 "====================================================" 985endif 986ifeq ($(CONFIG_SPI),y) 987ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy) 988 @echo >&2 "===================== WARNING ======================" 989 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update" 990 @echo >&2 "the board before v2019.04 for no dm conversion" 991 @echo >&2 "and v2019.07 for partially dm converted drivers." 992 @echo >&2 "Failure to update can lead to driver/board removal" 993 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 994 @echo >&2 "====================================================" 995endif 996endif 997ifeq ($(CONFIG_SPI_FLASH),y) 998ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy) 999 @echo >&2 "===================== WARNING ======================" 1000 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update" 1001 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release." 1002 @echo >&2 "Failure to update by the deadline may result in board removal." 1003 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 1004 @echo >&2 "====================================================" 1005endif 1006endif 1007 @# Check that this build does not use CONFIG options that we do not 1008 @# know about unless they are in Kconfig. All the existing CONFIG 1009 @# options are whitelisted, so new ones should not be added. 1010 $(call cmd,cfgcheck,u-boot.cfg) 1011 1012PHONY += dtbs 1013dtbs: dts/dt.dtb 1014 @: 1015dts/dt.dtb: u-boot 1016 $(Q)$(MAKE) $(build)=dts dtbs 1017 1018quiet_cmd_copy = COPY $@ 1019 cmd_copy = cp $< $@ 1020 1021ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1022 1023fit-dtb.blob: dts/dt.dtb FORCE 1024 $(call if_changed,mkimage) 1025 1026MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1027 -a 0 -e 0 -E \ 1028 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1029 1030u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 1031 $(call if_changed,cat) 1032 1033u-boot.bin: u-boot-fit-dtb.bin FORCE 1034 $(call if_changed,copy) 1035else ifeq ($(CONFIG_OF_SEPARATE),y) 1036u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1037 $(call if_changed,cat) 1038 1039u-boot.bin: u-boot-dtb.bin FORCE 1040 $(call if_changed,copy) 1041else 1042u-boot.bin: u-boot-nodtb.bin FORCE 1043 $(call if_changed,copy) 1044endif 1045 1046%.imx: %.bin 1047 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1048 1049%.vyb: %.imx 1050 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1051 1052quiet_cmd_copy = COPY $@ 1053 cmd_copy = cp $< $@ 1054 1055u-boot.dtb: dts/dt.dtb 1056 $(call cmd,copy) 1057 1058OBJCOPYFLAGS_u-boot.hex := -O ihex 1059 1060OBJCOPYFLAGS_u-boot.srec := -O srec 1061 1062u-boot.hex u-boot.srec: u-boot FORCE 1063 $(call if_changed,objcopy) 1064 1065OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1066 1067u-boot-elf.srec: u-boot.elf FORCE 1068 $(call if_changed,objcopy) 1069 1070OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1071 1072spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1073 $(call if_changed,objcopy) 1074 1075OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1076 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1077 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1078 1079OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex) 1080 1081spl/u-boot-spl.hex: spl/u-boot-spl FORCE 1082 $(call if_changed,objcopy) 1083 1084binary_size_check: u-boot-nodtb.bin FORCE 1085 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1086 map_size=$(shell cat u-boot.map | \ 1087 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1088 | sed 's/0X//g' \ 1089 | bc); \ 1090 if [ "" != "$$map_size" ]; then \ 1091 if test $$map_size -ne $$file_size; then \ 1092 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1093 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1094 exit 1; \ 1095 fi \ 1096 fi 1097 1098ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 1099ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1100subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1101else 1102subtract_sys_malloc_f_len = true 1103endif 1104# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1105# so low that the DTB could probably use 90%+ of the available space, for 1106# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1107# safe for now and tweak this later if space becomes tight. 1108# A rejected alternative would be to check that some absolute minimum stack 1109# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1110# deliberately build-specific, to take account of build-to-build stack usage 1111# differences due to different feature sets, there is no common absolute value 1112# to check against. 1113init_sp_bss_offset_check: u-boot.dtb FORCE 1114 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1115 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1116 $(subtract_sys_malloc_f_len) ; \ 1117 quarter_space=$$(($${space} / 4)) ; \ 1118 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1119 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1120 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1121 exit 1 ; \ 1122 fi 1123endif 1124 1125u-boot-nodtb.bin: u-boot FORCE 1126 $(call if_changed,objcopy) 1127 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1128 $(BOARD_SIZE_CHECK) 1129 1130u-boot.ldr: u-boot 1131 $(CREATE_LDR_ENV) 1132 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1133 $(BOARD_SIZE_CHECK) 1134 1135# binman 1136# --------------------------------------------------------------------------- 1137# Use 'make BINMAN_DEBUG=1' to enable debugging 1138quiet_cmd_binman = BINMAN $@ 1139cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \ 1140 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1141 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $< 1142 1143OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1144 1145OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1146 1147u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1148 $(call if_changed,objcopy) 1149 1150# 1151# U-Boot entry point, needed for booting of full-blown U-Boot 1152# from the SPL U-Boot version. 1153# 1154ifndef CONFIG_SYS_UBOOT_START 1155CONFIG_SYS_UBOOT_START := 0 1156endif 1157 1158# Boards with more complex image requirments can provide an .its source file 1159# or a generator script 1160ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1161U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1162else 1163ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1164U_BOOT_ITS := u-boot.its 1165ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1166U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1167endif 1168ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1169U_BOOT_ITS_DEPS += u-boot 1170endif 1171$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1172 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1173 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1174endif 1175endif 1176 1177ifdef CONFIG_SPL_LOAD_FIT 1178MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1179 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1180 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1181 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1182else 1183MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1184 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1185 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1186MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1187 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1188 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1189u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1190CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1191endif 1192 1193MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1194 1195MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1196 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1197 1198MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1199 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1200 $(if $(KEYDIR),-k $(KEYDIR)) 1201 1202MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1203 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1204 1205u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1206 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1207 $(call if_changed,mkimage) 1208 $(BOARD_SIZE_CHECK) 1209 1210ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1211MKIMAGEFLAGS_u-boot.itb = 1212else 1213MKIMAGEFLAGS_u-boot.itb = -E 1214endif 1215 1216u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1217 $(call if_changed,mkfitimage) 1218 $(BOARD_SIZE_CHECK) 1219 1220u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1221 $(call if_changed,mkimage) 1222 1223u-boot.sha1: u-boot.bin 1224 tools/ubsha1 u-boot.bin 1225 1226u-boot.dis: u-boot 1227 $(OBJDUMP) -d $< > $@ 1228 1229ifneq ($(CONFIG_SPL_PAYLOAD),) 1230SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1231else 1232SPL_PAYLOAD := u-boot.bin 1233endif 1234 1235OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1236 --pad-to=$(CONFIG_SPL_PAD_TO) 1237u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1238 $(call if_changed,pad_cat) 1239 1240ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1241MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1242 1243lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1244 $(call if_changed,mkimage) 1245 1246OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1247 1248lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1249 $(call if_changed,objcopy) 1250 1251OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1252 1253lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1254 $(call if_changed,objcopy) 1255 1256lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1257 $(call if_changed,cat) 1258 1259CLEAN_FILES += lpc32xx-* 1260endif 1261 1262OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1263 --pad-to=$(CONFIG_TPL_PAD_TO) 1264tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1265 $(call if_changed,pad_cat) 1266 1267SPL: spl/u-boot-spl.bin FORCE 1268 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1269 1270ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1271flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1272 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1273endif 1274 1275u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1276 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1277 1278MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1279 1280u-boot.ubl: u-boot-with-spl.bin FORCE 1281 $(call if_changed,mkimage) 1282 1283MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1284 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1285 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1286spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1287 $(call if_changed,mkimage) 1288 1289OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1290u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1291 $(call if_changed,pad_cat) 1292 1293u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1294 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1295u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1296 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1297 1298# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1299# Both images are created using mkimage (crc etc), so that the ROM 1300# bootloader can check its integrity. Padding needs to be done to the 1301# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1302# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1303# The resulting image containing both U-Boot images is called u-boot.spr 1304MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1305 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1306spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1307 $(call if_changed,mkimage) 1308 1309OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1310 --gap-fill=0xff 1311u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1312 $(call if_changed,pad_cat) 1313 1314ifneq ($(CONFIG_ARCH_SOCFPGA),) 1315quiet_cmd_socboot = SOCBOOT $@ 1316cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1317 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1318 u-boot.img > $@ || rm -f $@ 1319u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1320 $(call if_changed,socboot) 1321endif 1322 1323ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1324u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1325 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1326 $(call if_changed,binman) 1327 1328ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1329OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1330u-boot-br.bin: u-boot FORCE 1331 $(call if_changed,objcopy) 1332endif 1333endif 1334 1335# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1336# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1337# the middle. This is handled by binman based on an image description in the 1338# board's device tree. 1339ifneq ($(CONFIG_X86_RESET_VECTOR),) 1340rom: u-boot.rom FORCE 1341 1342refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1343 $(call if_changed,copy) 1344 1345quiet_cmd_ldr = LD $@ 1346cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1347 $(filter-out FORCE,$^) -o $@ 1348 1349u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1350 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1351 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1352 $(call if_changed,binman) 1353 1354OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1355u-boot-x86-16bit.bin: u-boot FORCE 1356 $(call if_changed,objcopy) 1357endif 1358 1359ifneq ($(CONFIG_ARCH_SUNXI),) 1360ifeq ($(CONFIG_ARM64),) 1361u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1362 $(call if_changed,binman) 1363else 1364u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1365 $(call if_changed,cat) 1366endif 1367endif 1368 1369ifneq ($(CONFIG_TEGRA),) 1370ifneq ($(CONFIG_BINMAN),) 1371# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin 1372%-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \ 1373 spl/%-spl %.bin FORCE 1374 $(call if_changed,binman) 1375else 1376OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1377u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1378 $(call if_changed,pad_cat) 1379 1380OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1381u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1382 $(call if_changed,pad_cat) 1383 1384u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1385 $(call if_changed,copy) 1386endif # binman 1387endif 1388 1389OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1390u-boot-app.efi: u-boot FORCE 1391 $(call if_changed,zobjcopy) 1392 1393u-boot.bin.o: u-boot.bin FORCE 1394 $(call if_changed,efipayload) 1395 1396u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1397 $(call if_changed_dep,cpp_lds) 1398 1399# Rule to link the EFI payload which contains a stub and a U-Boot binary 1400quiet_cmd_u-boot_payload ?= LD $@ 1401 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1402 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1403 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1404 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1405 1406u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1407 $(call if_changed,u-boot_payload) 1408 1409OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1410u-boot-payload.efi: u-boot-payload FORCE 1411 $(call if_changed,zobjcopy) 1412 1413u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1414 $(call if_changed,cat) 1415 1416#Add a target to create boot binary having SPL binary in PBI format 1417#concatenated with u-boot binary. It is need by PowerPC SoC having 1418#internal SRAM <= 512KB. 1419MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1420 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1421 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1422 1423spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1424 $(call if_changed,mkimage) 1425 1426ifeq ($(ARCH),arm) 1427UBOOT_BINLOAD := u-boot.img 1428else 1429ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1430UBOOT_BINLOAD := u-boot-with-dtb.bin 1431else 1432UBOOT_BINLOAD := u-boot.bin 1433endif 1434endif 1435 1436OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1437 --gap-fill=0xff 1438 1439u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1440 $(call if_changed,pad_cat) 1441 1442# PPC4xx needs the SPL at the end of the image, since the reset vector 1443# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1444# and need to introduce a new build target with the full blown U-Boot 1445# at the start padded up to the start of the SPL image. And then concat 1446# the SPL image to the end. 1447 1448OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1449 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1450u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1451 $(call if_changed,pad_cat) 1452 1453# Create a new ELF from a raw binary file. 1454ifndef PLATFORM_ELFENTRY 1455 PLATFORM_ELFENTRY = "_start" 1456endif 1457quiet_cmd_u-boot-elf ?= LD $@ 1458 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1459 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1460 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1461u-boot.elf: u-boot.bin 1462 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1463 $(call if_changed,u-boot-elf) 1464 1465# MediaTek's ARM-based u-boot needs a header to contains its load address 1466# which is parsed by the BootROM. 1467# If the SPL build is enabled, the header will be added to the spl binary, 1468# and the spl binary and the u-boot.img will be combined into one file. 1469# Otherwise the header will be added to the u-boot.bin directly. 1470 1471ifeq ($(CONFIG_SPL),y) 1472spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1473 1474u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE 1475 $(call if_changed,binman) 1476else 1477MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1478 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1479 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1480 1481u-boot-mtk.bin: u-boot.bin FORCE 1482 $(call if_changed,mkimage) 1483endif 1484 1485ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1486 1487# Rule to link u-boot 1488# May be overridden by arch/$(ARCH)/config.mk 1489quiet_cmd_u-boot__ ?= LD $@ 1490 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1491 -T u-boot.lds $(u-boot-init) \ 1492 --start-group $(u-boot-main) --end-group \ 1493 $(PLATFORM_LIBS) -Map u-boot.map; \ 1494 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1495 1496quiet_cmd_smap = GEN common/system_map.o 1497cmd_smap = \ 1498 smap=`$(call SYSTEM_MAP,u-boot) | \ 1499 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1500 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1501 -c $(srctree)/common/system_map.c -o common/system_map.o 1502 1503u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1504 +$(call if_changed,u-boot__) 1505ifeq ($(CONFIG_KALLSYMS),y) 1506 $(call cmd,smap) 1507 $(call cmd,u-boot__) common/system_map.o 1508endif 1509 1510ifeq ($(CONFIG_RISCV),y) 1511 @tools/prelink-riscv $@ 0 1512endif 1513 1514quiet_cmd_sym ?= SYM $@ 1515 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1516u-boot.sym: u-boot FORCE 1517 $(call if_changed,sym) 1518 1519# The actual objects are generated when descending, 1520# make sure no implicit rule kicks in 1521$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1522 1523# Handle descending into subdirectories listed in $(vmlinux-dirs) 1524# Preset locale variables to speed up the build process. Limit locale 1525# tweaks to this spot to avoid wrong language settings when running 1526# make menuconfig etc. 1527# Error messages still appears in the original language 1528 1529PHONY += $(u-boot-dirs) 1530$(u-boot-dirs): prepare scripts 1531 $(Q)$(MAKE) $(build)=$@ 1532 1533tools: prepare 1534# The "tools" are needed early 1535$(filter-out tools, $(u-boot-dirs)): tools 1536# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1537# is "yes"), so compile examples after U-Boot is compiled. 1538examples: $(filter-out examples, $(u-boot-dirs)) 1539 1540define filechk_uboot.release 1541 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1542endef 1543 1544# Store (new) UBOOTRELEASE string in include/config/uboot.release 1545include/config/uboot.release: include/config/auto.conf FORCE 1546 $(call filechk,uboot.release) 1547 1548 1549# Things we need to do before we recursively start building the kernel 1550# or the modules are listed in "prepare". 1551# A multi level approach is used. prepareN is processed before prepareN-1. 1552# archprepare is used in arch Makefiles and when processed asm symlink, 1553# version.h and scripts_basic is processed / created. 1554 1555# Listed in dependency order 1556PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1557 1558# prepare3 is used to check if we are building in a separate output directory, 1559# and if so do: 1560# 1) Check that make has not been executed in the kernel src $(srctree) 1561prepare3: include/config/uboot.release 1562ifneq ($(KBUILD_SRC),) 1563 @$(kecho) ' Using $(srctree) as source for U-Boot' 1564 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1565 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1566 echo >&2 " in the '$(srctree)' directory.";\ 1567 /bin/false; \ 1568 fi; 1569endif 1570 1571# prepare2 creates a makefile if using a separate output directory 1572prepare2: prepare3 outputmakefile cfg 1573 1574prepare1: prepare2 $(version_h) $(timestamp_h) \ 1575 include/config/auto.conf 1576ifeq ($(wildcard $(LDSCRIPT)),) 1577 @echo >&2 " Could not find linker script." 1578 @/bin/false 1579endif 1580 1581ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1582prepare1: $(defaultenv_h) 1583endif 1584 1585archprepare: prepare1 scripts_basic 1586 1587prepare0: archprepare FORCE 1588 $(Q)$(MAKE) $(build)=. 1589 1590# All the preparing.. 1591prepare: prepare0 1592 1593# Generate some files 1594# --------------------------------------------------------------------------- 1595 1596define filechk_version.h 1597 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1598 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1599 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1600 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1601endef 1602 1603# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1604# The BSD date on the other hand behaves different and would produce errors 1605# with the misused '-d' switch. Respect that and search a working date with 1606# well known pre- and suffixes for the GNU variant of date. 1607define filechk_timestamp.h 1608 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1609 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1610 DATE=""; \ 1611 for date in gdate date.gnu date; do \ 1612 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1613 done; \ 1614 if test -n "$${DATE}"; then \ 1615 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1616 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1617 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1618 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1619 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1620 else \ 1621 return 42; \ 1622 fi; \ 1623 else \ 1624 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1625 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1626 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1627 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1628 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1629 fi) 1630endef 1631 1632define filechk_defaultenv.h 1633 (grep -v '^#' | \ 1634 grep -v '^$$' | \ 1635 tr '\n' '\0' | \ 1636 sed -e 's/\\\x0/\n/' | \ 1637 xxd -i ; echo ", 0x00" ; ) 1638endef 1639 1640$(version_h): include/config/uboot.release FORCE 1641 $(call filechk,version.h) 1642 1643$(timestamp_h): $(srctree)/Makefile FORCE 1644 $(call filechk,timestamp.h) 1645 1646$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1647 $(call filechk,defaultenv.h) 1648 1649# --------------------------------------------------------------------------- 1650quiet_cmd_cpp_lds = LDS $@ 1651cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1652 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1653 1654u-boot.lds: $(LDSCRIPT) prepare FORCE 1655 $(call if_changed_dep,cpp_lds) 1656 1657spl/u-boot-spl.bin: spl/u-boot-spl 1658 @: 1659spl/u-boot-spl: tools prepare \ 1660 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1661 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1662 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1663 1664spl/sunxi-spl.bin: spl/u-boot-spl 1665 @: 1666 1667spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1668 @: 1669 1670spl/u-boot-spl.sfp: spl/u-boot-spl 1671 @: 1672 1673spl/boot.bin: spl/u-boot-spl 1674 @: 1675 1676tpl/u-boot-tpl.bin: tools prepare \ 1677 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1678 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1679 1680TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1681 1682FIND := find 1683FINDFLAGS := -L 1684 1685tags ctags: 1686 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1687 -name '*.[chS]' -print` 1688 ln -s ctags tags 1689 1690etags: 1691 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1692 -name '*.[chS]' -print` 1693cscope: 1694 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1695 cscope.files 1696 cscope -b -q -k 1697 1698SYSTEM_MAP = \ 1699 $(NM) $1 | \ 1700 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1701 LC_ALL=C sort 1702System.map: u-boot 1703 @$(call SYSTEM_MAP,$<) > $@ 1704 1705######################################################################### 1706 1707# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1708# R_AARCH64_RELATIVE (64-bit). 1709checkarmreloc: u-boot 1710 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1711 grep R_A | sort -u`"; \ 1712 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1713 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1714 echo "$< contains unexpected relocations: $$RELOC"; \ 1715 false; \ 1716 fi 1717 1718envtools: scripts_basic $(version_h) $(timestamp_h) 1719 $(Q)$(MAKE) $(build)=tools/env 1720 1721tools-only: scripts_basic $(version_h) $(timestamp_h) 1722 $(Q)$(MAKE) $(build)=tools 1723 1724tools-all: export HOST_TOOLS_ALL=y 1725tools-all: envtools tools ; 1726 1727cross_tools: export CROSS_BUILD_TOOLS=y 1728cross_tools: tools ; 1729 1730.PHONY : CHANGELOG 1731CHANGELOG: 1732 git log --no-merges U-Boot-1_1_5.. | \ 1733 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1734 1735######################################################################### 1736 1737### 1738# Cleaning is done on three levels. 1739# make clean Delete most generated files 1740# Leave enough to build external modules 1741# make mrproper Delete the current configuration, and all generated files 1742# make distclean Remove editor backup files, patch leftover files and the like 1743 1744# Directories & files removed with 'make clean' 1745CLEAN_DIRS += $(MODVERDIR) \ 1746 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1747 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1748 1749CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1750 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1751 1752# Directories & files removed with 'make mrproper' 1753MRPROPER_DIRS += include/config include/generated spl tpl \ 1754 .tmp_objdiff 1755MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1756 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1757 drivers/video/fonts/*.S 1758 1759# clean - Delete most, but leave enough to build external modules 1760# 1761clean: rm-dirs := $(CLEAN_DIRS) 1762clean: rm-files := $(CLEAN_FILES) 1763 1764clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1765 1766clean-dirs := $(addprefix _clean_, $(clean-dirs)) 1767 1768PHONY += $(clean-dirs) clean archclean 1769$(clean-dirs): 1770 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1771 1772clean: $(clean-dirs) 1773 $(call cmd,rmdirs) 1774 $(call cmd,rmfiles) 1775 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1776 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1777 -o -name '*.ko.*' -o -name '*.su' \ 1778 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1779 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 1780 -o -name '*.symtypes' -o -name 'modules.order' \ 1781 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1782 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1783 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 1784 -type f -print | xargs rm -f 1785 1786# mrproper - Delete all generated files, including .config 1787# 1788mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1789mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1790mrproper-dirs := $(addprefix _mrproper_,scripts) 1791 1792PHONY += $(mrproper-dirs) mrproper archmrproper 1793$(mrproper-dirs): 1794 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1795 1796mrproper: clean $(mrproper-dirs) 1797 $(call cmd,rmdirs) 1798 $(call cmd,rmfiles) 1799 @rm -f arch/*/include/asm/arch 1800 1801# distclean 1802# 1803PHONY += distclean 1804 1805distclean: mrproper 1806 @find $(srctree) $(RCS_FIND_IGNORE) \ 1807 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1808 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1809 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1810 -o -name '*.pyc' \) \ 1811 -type f -print | xargs rm -f 1812 @rm -f boards.cfg CHANGELOG 1813 1814backup: 1815 F=`basename $(srctree)` ; cd .. ; \ 1816 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1817 1818help: 1819 @echo 'Cleaning targets:' 1820 @echo ' clean - Remove most generated files but keep the config' 1821 @echo ' mrproper - Remove all generated files + config + various backup files' 1822 @echo ' distclean - mrproper + remove editor backup and patch files' 1823 @echo '' 1824 @echo 'Configuration targets:' 1825 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1826 @echo '' 1827 @echo 'Test targets:' 1828 @echo '' 1829 @echo ' check - Run all automated tests that use sandbox' 1830 @echo ' qcheck - Run quick automated tests that use sandbox' 1831 @echo '' 1832 @echo 'Other generic targets:' 1833 @echo ' all - Build all necessary images depending on configuration' 1834 @echo ' tests - Build U-Boot for sandbox and run tests' 1835 @echo '* u-boot - Build the bare u-boot' 1836 @echo ' dir/ - Build all files in dir and below' 1837 @echo ' dir/file.[oisS] - Build specified target only' 1838 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1839 @echo ' (requires a recent binutils and recent build (System.map))' 1840 @echo ' tags/ctags - Generate ctags file for editors' 1841 @echo ' etags - Generate etags file for editors' 1842 @echo ' cscope - Generate cscope index' 1843 @echo ' ubootrelease - Output the release version string (use with make -s)' 1844 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1845 @echo " cfg - Don't build, just create the .cfg files" 1846 @echo " envtools - Build only the target-side environment tools" 1847 @echo '' 1848 @echo 'Static analysers' 1849 @echo ' checkstack - Generate a list of stack hogs' 1850 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1851 @echo '' 1852 @echo 'Documentation targets:' 1853 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp 1854 @echo '' 1855 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1856 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1857 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1858 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1859 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1860 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1861 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1862 @echo ' 1: warnings which may be relevant and do not occur too often' 1863 @echo ' 2: warnings which occur quite often but may still be relevant' 1864 @echo ' 3: more obscure warnings, can most likely be ignored' 1865 @echo ' Multiple levels can be combined with W=12 or W=123' 1866 @echo '' 1867 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1868 @echo 'For further info see the ./README file' 1869 1870tests check: 1871 $(srctree)/test/run 1872 1873qcheck: 1874 $(srctree)/test/run quick 1875 1876# Documentation targets 1877# --------------------------------------------------------------------------- 1878DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 1879 linkcheckdocs dochelp refcheckdocs 1880PHONY += $(DOC_TARGETS) 1881$(DOC_TARGETS): scripts_basic FORCE 1882 $(Q)$(MAKE) $(build)=Documentation $@ 1883 1884endif #ifeq ($(config-targets),1) 1885endif #ifeq ($(mixed-targets),1) 1886 1887PHONY += checkstack ubootrelease ubootversion 1888 1889checkstack: 1890 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1891 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1892 1893ubootrelease: 1894 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1895 1896ubootversion: 1897 @echo $(UBOOTVERSION) 1898 1899# Single targets 1900# --------------------------------------------------------------------------- 1901# Single targets are compatible with: 1902# - build with mixed source and output 1903# - build with separate output dir 'make O=...' 1904# - external modules 1905# 1906# target-dir => where to store outputfile 1907# build-dir => directory in kernel source tree to use 1908 1909ifeq ($(KBUILD_EXTMOD),) 1910 build-dir = $(patsubst %/,%,$(dir $@)) 1911 target-dir = $(dir $@) 1912else 1913 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1914 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1915 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1916endif 1917 1918%.s: %.c prepare scripts FORCE 1919 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1920%.i: %.c prepare scripts FORCE 1921 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1922%.o: %.c prepare scripts FORCE 1923 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1924%.lst: %.c prepare scripts FORCE 1925 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1926%.s: %.S prepare scripts FORCE 1927 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1928%.o: %.S prepare scripts FORCE 1929 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1930%.symtypes: %.c prepare scripts FORCE 1931 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1932 1933# Modules 1934/: prepare scripts FORCE 1935 $(cmd_crmodverdir) 1936 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1937 $(build)=$(build-dir) 1938%/: prepare scripts FORCE 1939 $(cmd_crmodverdir) 1940 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1941 $(build)=$(build-dir) 1942%.ko: prepare scripts FORCE 1943 $(cmd_crmodverdir) 1944 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1945 $(build)=$(build-dir) $(@:.ko=.o) 1946 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1947 1948# Consistency checks 1949# --------------------------------------------------------------------------- 1950 1951PHONY += coccicheck 1952 1953coccicheck: 1954 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1955 1956# FIXME Should go into a make.lib or something 1957# =========================================================================== 1958 1959quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1960 cmd_rmdirs = rm -rf $(rm-dirs) 1961 1962quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1963 cmd_rmfiles = rm -f $(rm-files) 1964 1965# read all saved command lines 1966 1967targets := $(wildcard $(sort $(targets))) 1968cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1969 1970ifneq ($(cmd_files),) 1971 $(cmd_files): ; # Do not try to update included dependency files 1972 include $(cmd_files) 1973endif 1974 1975endif # skip-makefile 1976 1977PHONY += FORCE 1978FORCE: 1979 1980# Declare the contents of the .PHONY variable as phony. We keep that 1981# information in a variable so we can use it in if_changed and friends. 1982.PHONY: $(PHONY) 1983