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) 639KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 640 641ifeq ($(cc-name),clang) 642KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 643KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 644KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 645KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 646endif 647 648# turn jbsr into jsr for m68k 649ifeq ($(ARCH),m68k) 650ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 651KBUILD_AFLAGS += -Wa,-gstabs,-S 652endif 653endif 654 655# Prohibit date/time macros, which would make the build non-deterministic 656KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 657 658include scripts/Makefile.extrawarn 659 660# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 661KBUILD_CPPFLAGS += $(KCPPFLAGS) 662KBUILD_AFLAGS += $(KAFLAGS) 663KBUILD_CFLAGS += $(KCFLAGS) 664 665# Use UBOOTINCLUDE when you must reference the include/ directory. 666# Needed to be compatible with the O= option 667UBOOTINCLUDE := \ 668 -Iinclude \ 669 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 670 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 671 $(if $(CONFIG_HAS_THUMB2),, \ 672 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 673 -I$(srctree)/arch/$(ARCH)/include \ 674 -include $(srctree)/include/linux/kconfig.h 675 676NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 677CHECKFLAGS += $(NOSTDINC_FLAGS) 678 679# FIX ME 680cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 681 $(NOSTDINC_FLAGS) 682c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 683 684######################################################################### 685# U-Boot objects....order is important (i.e. start must be first) 686 687HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 688 689libs-y += lib/ 690libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 691libs-$(CONFIG_OF_EMBED) += dts/ 692libs-y += fs/ 693libs-y += net/ 694libs-y += disk/ 695libs-y += drivers/ 696libs-y += drivers/dma/ 697libs-y += drivers/gpio/ 698libs-y += drivers/i2c/ 699libs-y += drivers/mtd/ 700libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/ 701libs-y += drivers/mtd/onenand/ 702libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 703libs-y += drivers/mtd/spi/ 704libs-y += drivers/net/ 705libs-y += drivers/net/phy/ 706libs-y += drivers/power/ \ 707 drivers/power/domain/ \ 708 drivers/power/fuel_gauge/ \ 709 drivers/power/mfd/ \ 710 drivers/power/pmic/ \ 711 drivers/power/battery/ \ 712 drivers/power/regulator/ 713libs-y += drivers/spi/ 714libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 715libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 716libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 717libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 718libs-y += drivers/serial/ 719libs-y += drivers/usb/dwc3/ 720libs-y += drivers/usb/common/ 721libs-y += drivers/usb/emul/ 722libs-y += drivers/usb/eth/ 723libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 724libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 725libs-y += drivers/usb/host/ 726libs-y += drivers/usb/musb/ 727libs-y += drivers/usb/musb-new/ 728libs-y += drivers/usb/phy/ 729libs-y += drivers/usb/ulpi/ 730libs-y += cmd/ 731libs-y += common/ 732libs-y += env/ 733libs-$(CONFIG_API) += api/ 734libs-$(CONFIG_HAS_POST) += post/ 735libs-$(CONFIG_UNIT_TEST) += test/ test/dm/ 736libs-$(CONFIG_UT_ENV) += test/env/ 737libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 738 739libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 740 741libs-y := $(sort $(libs-y)) 742 743u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 744 745u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 746 747libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 748 749u-boot-init := $(head-y) 750u-boot-main := $(libs-y) 751 752 753# Add GCC lib 754ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 755PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 756else 757PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 758endif 759PLATFORM_LIBS += $(PLATFORM_LIBGCC) 760 761ifdef CONFIG_CC_COVERAGE 762KBUILD_CFLAGS += --coverage 763PLATFORM_LIBGCC += -lgcov 764endif 765 766export PLATFORM_LIBS 767export PLATFORM_LIBGCC 768 769# Special flags for CPP when processing the linker script. 770# Pass the version down so we can handle backwards compatibility 771# on the fly. 772LDPPFLAGS += \ 773 -include $(srctree)/include/u-boot/u-boot.lds.h \ 774 -DCPUDIR=$(CPUDIR) \ 775 $(shell $(LD) --version | \ 776 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 777 778######################################################################### 779######################################################################### 780 781ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 782BOARD_SIZE_CHECK = \ 783 @actual=`wc -c $@ | awk '{print $$1}'`; \ 784 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 785 if test $$actual -gt $$limit; then \ 786 echo "$@ exceeds file size limit:" >&2 ; \ 787 echo " limit: $$limit bytes" >&2 ; \ 788 echo " actual: $$actual bytes" >&2 ; \ 789 echo " excess: $$((actual - limit)) bytes" >&2; \ 790 exit 1; \ 791 fi 792else 793BOARD_SIZE_CHECK = 794endif 795 796# Statically apply RELA-style relocations (currently arm64 only) 797# This is useful for arm64 where static relocation needs to be performed on 798# the raw binary, but certain simulators only accept an ELF file (but don't 799# do the relocation). 800ifneq ($(CONFIG_STATIC_RELA),) 801# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 802DO_STATIC_RELA = \ 803 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 804 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 805 tools/relocate-rela $(2) $(3) $$start $$end 806else 807DO_STATIC_RELA = 808endif 809 810# Always append ALL so that arch config.mk's can add custom ones 811ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 812 813ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 814ifeq ($(CONFIG_SPL_FSL_PBL),y) 815ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 816else 817ifneq ($(CONFIG_SECURE_BOOT), y) 818# For Secure Boot The Image needs to be signed and Header must also 819# be included. So The image has to be built explicitly 820ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 821endif 822endif 823ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 824ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 825ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 826else 827ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy) 828ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 829else 830ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 831endif 832endif 833ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 834ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 835ifeq ($(CONFIG_SPL_FRAMEWORK),y) 836ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 837endif 838ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 839ifneq ($(CONFIG_SPL_TARGET),) 840ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 841endif 842ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 843ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 844ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 845 846ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),) 847ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 848endif 849 850# Build a combined spl + u-boot image for sunxi 851ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) 852ALL-y += u-boot-sunxi-with-spl.bin 853endif 854 855# enable combined SPL/u-boot/dtb rules for tegra 856ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 857ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 858ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 859endif 860 861ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 862 863# Add optional build target if defined in board/cpu/soc headers 864ifneq ($(CONFIG_BUILD_TARGET),) 865ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 866endif 867 868ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 869ALL-y += init_sp_bss_offset_check 870endif 871 872ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 873ALL-y += u-boot-with-dtb.bin 874endif 875 876LDFLAGS_u-boot += $(LDFLAGS_FINAL) 877 878# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 879LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 880 881ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 882LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 883endif 884 885# Normally we fill empty space with 0xff 886quiet_cmd_objcopy = OBJCOPY $@ 887cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 888 $(OBJCOPYFLAGS_$(@F)) $< $@ 889 890# Provide a version which does not do this, for use by EFI 891quiet_cmd_zobjcopy = OBJCOPY $@ 892cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 893 894quiet_cmd_efipayload = OBJCOPY $@ 895cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 896 897MKIMAGEOUTPUT ?= /dev/null 898 899quiet_cmd_mkimage = MKIMAGE $@ 900cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 901 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 902 903quiet_cmd_mkfitimage = MKIMAGE $@ 904cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\ 905 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 906 907quiet_cmd_cat = CAT $@ 908cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 909 910append = cat $(filter-out $< $(PHONY), $^) >> $@ 911 912quiet_cmd_pad_cat = CAT $@ 913cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 914 915cfg: u-boot.cfg 916 917quiet_cmd_cfgcheck = CFGCHK $2 918cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 919 $(srctree)/scripts/config_whitelist.txt $(srctree) 920 921all: $(ALL-y) 922ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 923 @echo >&2 "===================== WARNING ======================" 924 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 925 @echo >&2 "(possibly in a subsequent patch in your series)" 926 @echo >&2 "before sending patches to the mailing list." 927 @echo >&2 "====================================================" 928endif 929ifeq ($(CONFIG_MMC),y) 930ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 931 @echo >&2 "===================== WARNING ======================" 932 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update" 933 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release." 934 @echo >&2 "Failure to update by the deadline may result in board removal." 935 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 936 @echo >&2 "====================================================" 937endif 938endif 939ifeq ($(CONFIG_USB),y) 940ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 941 @echo >&2 "===================== WARNING ======================" 942 @echo >&2 "This board does not use CONFIG_DM_USB. Please update" 943 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release." 944 @echo >&2 "Failure to update by the deadline may result in board removal." 945 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 946 @echo >&2 "====================================================" 947endif 948endif 949ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y) 950ifneq ($(CONFIG_DM_SCSI),y) 951 @echo >&2 "===================== WARNING ======================" 952 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update" 953 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release." 954 @echo >&2 "Failure to update by the deadline may result in board removal." 955 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 956 @echo >&2 "====================================================" 957endif 958endif 959ifeq ($(CONFIG_PCI),y) 960ifneq ($(CONFIG_DM_PCI),y) 961 @echo >&2 "===================== WARNING ======================" 962 @echo >&2 "This board does not use CONFIG_DM_PCI Please update" 963 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release." 964 @echo >&2 "Failure to update by the deadline may result in board removal." 965 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 966 @echo >&2 "====================================================" 967endif 968endif 969ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),) 970ifneq ($(CONFIG_DM_VIDEO),y) 971 @echo >&2 "===================== WARNING ======================" 972 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update" 973 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release." 974 @echo >&2 "Failure to update by the deadline may result in board removal." 975 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 976 @echo >&2 "====================================================" 977endif 978endif 979ifeq ($(CONFIG_OF_EMBED),y) 980 @echo >&2 "===================== WARNING ======================" 981 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 982 @echo >&2 "be used for debugging purposes. Please use" 983 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 984 @echo >&2 "See doc/README.fdt-control for more info." 985 @echo >&2 "====================================================" 986endif 987ifeq ($(CONFIG_SPI),y) 988ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy) 989 @echo >&2 "===================== WARNING ======================" 990 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update" 991 @echo >&2 "the board before v2019.04 for no dm conversion" 992 @echo >&2 "and v2019.07 for partially dm converted drivers." 993 @echo >&2 "Failure to update can lead to driver/board removal" 994 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 995 @echo >&2 "====================================================" 996endif 997endif 998ifeq ($(CONFIG_SPI_FLASH),y) 999ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy) 1000 @echo >&2 "===================== WARNING ======================" 1001 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update" 1002 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release." 1003 @echo >&2 "Failure to update by the deadline may result in board removal." 1004 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 1005 @echo >&2 "====================================================" 1006endif 1007endif 1008 @# Check that this build does not use CONFIG options that we do not 1009 @# know about unless they are in Kconfig. All the existing CONFIG 1010 @# options are whitelisted, so new ones should not be added. 1011 $(call cmd,cfgcheck,u-boot.cfg) 1012 1013PHONY += dtbs 1014dtbs: dts/dt.dtb 1015 @: 1016dts/dt.dtb: u-boot 1017 $(Q)$(MAKE) $(build)=dts dtbs 1018 1019quiet_cmd_copy = COPY $@ 1020 cmd_copy = cp $< $@ 1021 1022ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1023 1024fit-dtb.blob: dts/dt.dtb FORCE 1025 $(call if_changed,mkimage) 1026 1027MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1028 -a 0 -e 0 -E \ 1029 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1030 1031u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 1032 $(call if_changed,cat) 1033 1034u-boot.bin: u-boot-fit-dtb.bin FORCE 1035 $(call if_changed,copy) 1036else ifeq ($(CONFIG_OF_SEPARATE),y) 1037u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1038 $(call if_changed,cat) 1039 1040u-boot.bin: u-boot-dtb.bin FORCE 1041 $(call if_changed,copy) 1042else 1043u-boot.bin: u-boot-nodtb.bin FORCE 1044 $(call if_changed,copy) 1045endif 1046 1047%.imx: %.bin 1048 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1049 1050%.vyb: %.imx 1051 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1052 1053quiet_cmd_copy = COPY $@ 1054 cmd_copy = cp $< $@ 1055 1056u-boot.dtb: dts/dt.dtb 1057 $(call cmd,copy) 1058 1059OBJCOPYFLAGS_u-boot.hex := -O ihex 1060 1061OBJCOPYFLAGS_u-boot.srec := -O srec 1062 1063u-boot.hex u-boot.srec: u-boot FORCE 1064 $(call if_changed,objcopy) 1065 1066OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1067 1068u-boot-elf.srec: u-boot.elf FORCE 1069 $(call if_changed,objcopy) 1070 1071OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1072 1073spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1074 $(call if_changed,objcopy) 1075 1076OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1077 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1078 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1079 1080OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex) 1081 1082spl/u-boot-spl.hex: spl/u-boot-spl FORCE 1083 $(call if_changed,objcopy) 1084 1085binary_size_check: u-boot-nodtb.bin FORCE 1086 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1087 map_size=$(shell cat u-boot.map | \ 1088 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1089 | sed 's/0X//g' \ 1090 | bc); \ 1091 if [ "" != "$$map_size" ]; then \ 1092 if test $$map_size -ne $$file_size; then \ 1093 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1094 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1095 exit 1; \ 1096 fi \ 1097 fi 1098 1099ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 1100ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1101subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1102else 1103subtract_sys_malloc_f_len = true 1104endif 1105# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1106# so low that the DTB could probably use 90%+ of the available space, for 1107# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1108# safe for now and tweak this later if space becomes tight. 1109# A rejected alternative would be to check that some absolute minimum stack 1110# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1111# deliberately build-specific, to take account of build-to-build stack usage 1112# differences due to different feature sets, there is no common absolute value 1113# to check against. 1114init_sp_bss_offset_check: u-boot.dtb FORCE 1115 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1116 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1117 $(subtract_sys_malloc_f_len) ; \ 1118 quarter_space=$$(($${space} / 4)) ; \ 1119 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1120 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1121 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1122 exit 1 ; \ 1123 fi 1124endif 1125 1126u-boot-nodtb.bin: u-boot FORCE 1127 $(call if_changed,objcopy) 1128 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1129 $(BOARD_SIZE_CHECK) 1130 1131u-boot.ldr: u-boot 1132 $(CREATE_LDR_ENV) 1133 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1134 $(BOARD_SIZE_CHECK) 1135 1136# binman 1137# --------------------------------------------------------------------------- 1138# Use 'make BINMAN_DEBUG=1' to enable debugging 1139quiet_cmd_binman = BINMAN $@ 1140cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \ 1141 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1142 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $< 1143 1144OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1145 1146OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1147 1148u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1149 $(call if_changed,objcopy) 1150 1151# 1152# U-Boot entry point, needed for booting of full-blown U-Boot 1153# from the SPL U-Boot version. 1154# 1155ifndef CONFIG_SYS_UBOOT_START 1156CONFIG_SYS_UBOOT_START := 0 1157endif 1158 1159# Boards with more complex image requirments can provide an .its source file 1160# or a generator script 1161ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1162U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1163else 1164ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1165U_BOOT_ITS := u-boot.its 1166ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1167U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1168endif 1169ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1170U_BOOT_ITS_DEPS += u-boot 1171endif 1172$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1173 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1174 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1175endif 1176endif 1177 1178ifdef CONFIG_SPL_LOAD_FIT 1179MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1180 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1181 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1182 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1183else 1184MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1185 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1186 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1187MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1188 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1189 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1190u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1191CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1192endif 1193 1194MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1195 1196MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1197 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1198 1199MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1200 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1201 $(if $(KEYDIR),-k $(KEYDIR)) 1202 1203MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1204 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1205 1206u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1207 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1208 $(call if_changed,mkimage) 1209 $(BOARD_SIZE_CHECK) 1210 1211ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1212MKIMAGEFLAGS_u-boot.itb = 1213else 1214MKIMAGEFLAGS_u-boot.itb = -E 1215endif 1216 1217u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1218 $(call if_changed,mkfitimage) 1219 $(BOARD_SIZE_CHECK) 1220 1221u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1222 $(call if_changed,mkimage) 1223 1224u-boot.sha1: u-boot.bin 1225 tools/ubsha1 u-boot.bin 1226 1227u-boot.dis: u-boot 1228 $(OBJDUMP) -d $< > $@ 1229 1230ifneq ($(CONFIG_SPL_PAYLOAD),) 1231SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1232else 1233SPL_PAYLOAD := u-boot.bin 1234endif 1235 1236OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1237 --pad-to=$(CONFIG_SPL_PAD_TO) 1238u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1239 $(call if_changed,pad_cat) 1240 1241ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1242MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1243 1244lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1245 $(call if_changed,mkimage) 1246 1247OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1248 1249lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1250 $(call if_changed,objcopy) 1251 1252OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1253 1254lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1255 $(call if_changed,objcopy) 1256 1257lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1258 $(call if_changed,cat) 1259 1260CLEAN_FILES += lpc32xx-* 1261endif 1262 1263OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1264 --pad-to=$(CONFIG_TPL_PAD_TO) 1265tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1266 $(call if_changed,pad_cat) 1267 1268SPL: spl/u-boot-spl.bin FORCE 1269 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1270 1271ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1272flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1273 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1274endif 1275 1276u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1277 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1278 1279MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1280 1281u-boot.ubl: u-boot-with-spl.bin FORCE 1282 $(call if_changed,mkimage) 1283 1284MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1285 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1286 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1287spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1288 $(call if_changed,mkimage) 1289 1290OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1291u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1292 $(call if_changed,pad_cat) 1293 1294u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1295 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1296u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1297 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1298 1299# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1300# Both images are created using mkimage (crc etc), so that the ROM 1301# bootloader can check its integrity. Padding needs to be done to the 1302# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1303# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1304# The resulting image containing both U-Boot images is called u-boot.spr 1305MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1306 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1307spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1308 $(call if_changed,mkimage) 1309 1310OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1311 --gap-fill=0xff 1312u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1313 $(call if_changed,pad_cat) 1314 1315ifneq ($(CONFIG_ARCH_SOCFPGA),) 1316quiet_cmd_socboot = SOCBOOT $@ 1317cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1318 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1319 u-boot.img > $@ || rm -f $@ 1320u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1321 $(call if_changed,socboot) 1322endif 1323 1324ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1325u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1326 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1327 $(call if_changed,binman) 1328 1329ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1330OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1331u-boot-br.bin: u-boot FORCE 1332 $(call if_changed,objcopy) 1333endif 1334endif 1335 1336# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1337# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1338# the middle. This is handled by binman based on an image description in the 1339# board's device tree. 1340ifneq ($(CONFIG_X86_RESET_VECTOR),) 1341rom: u-boot.rom FORCE 1342 1343refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1344 $(call if_changed,copy) 1345 1346quiet_cmd_ldr = LD $@ 1347cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1348 $(filter-out FORCE,$^) -o $@ 1349 1350u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1351 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1352 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1353 $(call if_changed,binman) 1354 1355OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1356u-boot-x86-16bit.bin: u-boot FORCE 1357 $(call if_changed,objcopy) 1358endif 1359 1360ifneq ($(CONFIG_ARCH_SUNXI),) 1361ifeq ($(CONFIG_ARM64),) 1362u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1363 $(call if_changed,binman) 1364else 1365u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1366 $(call if_changed,cat) 1367endif 1368endif 1369 1370ifneq ($(CONFIG_TEGRA),) 1371ifneq ($(CONFIG_BINMAN),) 1372# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin 1373%-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \ 1374 spl/%-spl %.bin FORCE 1375 $(call if_changed,binman) 1376else 1377OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1378u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1379 $(call if_changed,pad_cat) 1380 1381OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1382u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1383 $(call if_changed,pad_cat) 1384 1385u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1386 $(call if_changed,copy) 1387endif # binman 1388endif 1389 1390OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1391u-boot-app.efi: u-boot FORCE 1392 $(call if_changed,zobjcopy) 1393 1394u-boot.bin.o: u-boot.bin FORCE 1395 $(call if_changed,efipayload) 1396 1397u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1398 $(call if_changed_dep,cpp_lds) 1399 1400# Rule to link the EFI payload which contains a stub and a U-Boot binary 1401quiet_cmd_u-boot_payload ?= LD $@ 1402 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1403 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1404 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1405 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1406 1407u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1408 $(call if_changed,u-boot_payload) 1409 1410OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1411u-boot-payload.efi: u-boot-payload FORCE 1412 $(call if_changed,zobjcopy) 1413 1414u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1415 $(call if_changed,cat) 1416 1417#Add a target to create boot binary having SPL binary in PBI format 1418#concatenated with u-boot binary. It is need by PowerPC SoC having 1419#internal SRAM <= 512KB. 1420MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1421 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1422 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1423 1424spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1425 $(call if_changed,mkimage) 1426 1427ifeq ($(ARCH),arm) 1428UBOOT_BINLOAD := u-boot.img 1429else 1430ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1431UBOOT_BINLOAD := u-boot-with-dtb.bin 1432else 1433UBOOT_BINLOAD := u-boot.bin 1434endif 1435endif 1436 1437OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1438 --gap-fill=0xff 1439 1440u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1441 $(call if_changed,pad_cat) 1442 1443# PPC4xx needs the SPL at the end of the image, since the reset vector 1444# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1445# and need to introduce a new build target with the full blown U-Boot 1446# at the start padded up to the start of the SPL image. And then concat 1447# the SPL image to the end. 1448 1449OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1450 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1451u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1452 $(call if_changed,pad_cat) 1453 1454# Create a new ELF from a raw binary file. 1455ifndef PLATFORM_ELFENTRY 1456 PLATFORM_ELFENTRY = "_start" 1457endif 1458quiet_cmd_u-boot-elf ?= LD $@ 1459 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1460 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1461 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1462u-boot.elf: u-boot.bin 1463 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1464 $(call if_changed,u-boot-elf) 1465 1466# MediaTek's ARM-based u-boot needs a header to contains its load address 1467# which is parsed by the BootROM. 1468# If the SPL build is enabled, the header will be added to the spl binary, 1469# and the spl binary and the u-boot.img will be combined into one file. 1470# Otherwise the header will be added to the u-boot.bin directly. 1471 1472ifeq ($(CONFIG_SPL),y) 1473spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1474 1475u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE 1476 $(call if_changed,binman) 1477else 1478MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1479 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1480 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1481 1482u-boot-mtk.bin: u-boot.bin FORCE 1483 $(call if_changed,mkimage) 1484endif 1485 1486ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1487 1488# Rule to link u-boot 1489# May be overridden by arch/$(ARCH)/config.mk 1490quiet_cmd_u-boot__ ?= LD $@ 1491 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1492 -T u-boot.lds $(u-boot-init) \ 1493 --start-group $(u-boot-main) --end-group \ 1494 $(PLATFORM_LIBS) -Map u-boot.map; \ 1495 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1496 1497quiet_cmd_smap = GEN common/system_map.o 1498cmd_smap = \ 1499 smap=`$(call SYSTEM_MAP,u-boot) | \ 1500 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1501 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1502 -c $(srctree)/common/system_map.c -o common/system_map.o 1503 1504u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1505 +$(call if_changed,u-boot__) 1506ifeq ($(CONFIG_KALLSYMS),y) 1507 $(call cmd,smap) 1508 $(call cmd,u-boot__) common/system_map.o 1509endif 1510 1511ifeq ($(CONFIG_RISCV),y) 1512 @tools/prelink-riscv $@ 0 1513endif 1514 1515quiet_cmd_sym ?= SYM $@ 1516 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1517u-boot.sym: u-boot FORCE 1518 $(call if_changed,sym) 1519 1520# The actual objects are generated when descending, 1521# make sure no implicit rule kicks in 1522$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1523 1524# Handle descending into subdirectories listed in $(vmlinux-dirs) 1525# Preset locale variables to speed up the build process. Limit locale 1526# tweaks to this spot to avoid wrong language settings when running 1527# make menuconfig etc. 1528# Error messages still appears in the original language 1529 1530PHONY += $(u-boot-dirs) 1531$(u-boot-dirs): prepare scripts 1532 $(Q)$(MAKE) $(build)=$@ 1533 1534tools: prepare 1535# The "tools" are needed early 1536$(filter-out tools, $(u-boot-dirs)): tools 1537# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1538# is "yes"), so compile examples after U-Boot is compiled. 1539examples: $(filter-out examples, $(u-boot-dirs)) 1540 1541define filechk_uboot.release 1542 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1543endef 1544 1545# Store (new) UBOOTRELEASE string in include/config/uboot.release 1546include/config/uboot.release: include/config/auto.conf FORCE 1547 $(call filechk,uboot.release) 1548 1549 1550# Things we need to do before we recursively start building the kernel 1551# or the modules are listed in "prepare". 1552# A multi level approach is used. prepareN is processed before prepareN-1. 1553# archprepare is used in arch Makefiles and when processed asm symlink, 1554# version.h and scripts_basic is processed / created. 1555 1556# Listed in dependency order 1557PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1558 1559# prepare3 is used to check if we are building in a separate output directory, 1560# and if so do: 1561# 1) Check that make has not been executed in the kernel src $(srctree) 1562prepare3: include/config/uboot.release 1563ifneq ($(KBUILD_SRC),) 1564 @$(kecho) ' Using $(srctree) as source for U-Boot' 1565 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1566 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1567 echo >&2 " in the '$(srctree)' directory.";\ 1568 /bin/false; \ 1569 fi; 1570endif 1571 1572# prepare2 creates a makefile if using a separate output directory 1573prepare2: prepare3 outputmakefile cfg 1574 1575prepare1: prepare2 $(version_h) $(timestamp_h) \ 1576 include/config/auto.conf 1577ifeq ($(wildcard $(LDSCRIPT)),) 1578 @echo >&2 " Could not find linker script." 1579 @/bin/false 1580endif 1581 1582ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1583prepare1: $(defaultenv_h) 1584endif 1585 1586archprepare: prepare1 scripts_basic 1587 1588prepare0: archprepare FORCE 1589 $(Q)$(MAKE) $(build)=. 1590 1591# All the preparing.. 1592prepare: prepare0 1593 1594# Generate some files 1595# --------------------------------------------------------------------------- 1596 1597define filechk_version.h 1598 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1599 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1600 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1601 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1602endef 1603 1604# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1605# The BSD date on the other hand behaves different and would produce errors 1606# with the misused '-d' switch. Respect that and search a working date with 1607# well known pre- and suffixes for the GNU variant of date. 1608define filechk_timestamp.h 1609 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1610 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1611 DATE=""; \ 1612 for date in gdate date.gnu date; do \ 1613 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1614 done; \ 1615 if test -n "$${DATE}"; then \ 1616 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1617 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1618 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1619 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1620 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1621 else \ 1622 return 42; \ 1623 fi; \ 1624 else \ 1625 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1626 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1627 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1628 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1629 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1630 fi) 1631endef 1632 1633define filechk_defaultenv.h 1634 (grep -v '^#' | \ 1635 grep -v '^$$' | \ 1636 tr '\n' '\0' | \ 1637 sed -e 's/\\\x0/\n/' | \ 1638 xxd -i ; echo ", 0x00" ; ) 1639endef 1640 1641$(version_h): include/config/uboot.release FORCE 1642 $(call filechk,version.h) 1643 1644$(timestamp_h): $(srctree)/Makefile FORCE 1645 $(call filechk,timestamp.h) 1646 1647$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1648 $(call filechk,defaultenv.h) 1649 1650# --------------------------------------------------------------------------- 1651quiet_cmd_cpp_lds = LDS $@ 1652cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1653 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1654 1655u-boot.lds: $(LDSCRIPT) prepare FORCE 1656 $(call if_changed_dep,cpp_lds) 1657 1658spl/u-boot-spl.bin: spl/u-boot-spl 1659 @: 1660spl/u-boot-spl: tools prepare \ 1661 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1662 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1663 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1664 1665spl/sunxi-spl.bin: spl/u-boot-spl 1666 @: 1667 1668spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1669 @: 1670 1671spl/u-boot-spl.sfp: spl/u-boot-spl 1672 @: 1673 1674spl/boot.bin: spl/u-boot-spl 1675 @: 1676 1677tpl/u-boot-tpl.bin: tools prepare \ 1678 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1679 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1680 1681TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1682 1683FIND := find 1684FINDFLAGS := -L 1685 1686tags ctags: 1687 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1688 -name '*.[chS]' -print` 1689 ln -s ctags tags 1690 1691etags: 1692 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1693 -name '*.[chS]' -print` 1694cscope: 1695 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1696 cscope.files 1697 cscope -b -q -k 1698 1699SYSTEM_MAP = \ 1700 $(NM) $1 | \ 1701 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1702 LC_ALL=C sort 1703System.map: u-boot 1704 @$(call SYSTEM_MAP,$<) > $@ 1705 1706######################################################################### 1707 1708# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1709# R_AARCH64_RELATIVE (64-bit). 1710checkarmreloc: u-boot 1711 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1712 grep R_A | sort -u`"; \ 1713 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1714 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1715 echo "$< contains unexpected relocations: $$RELOC"; \ 1716 false; \ 1717 fi 1718 1719envtools: scripts_basic $(version_h) $(timestamp_h) 1720 $(Q)$(MAKE) $(build)=tools/env 1721 1722tools-only: scripts_basic $(version_h) $(timestamp_h) 1723 $(Q)$(MAKE) $(build)=tools 1724 1725tools-all: export HOST_TOOLS_ALL=y 1726tools-all: envtools tools ; 1727 1728cross_tools: export CROSS_BUILD_TOOLS=y 1729cross_tools: tools ; 1730 1731.PHONY : CHANGELOG 1732CHANGELOG: 1733 git log --no-merges U-Boot-1_1_5.. | \ 1734 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1735 1736######################################################################### 1737 1738### 1739# Cleaning is done on three levels. 1740# make clean Delete most generated files 1741# Leave enough to build external modules 1742# make mrproper Delete the current configuration, and all generated files 1743# make distclean Remove editor backup files, patch leftover files and the like 1744 1745# Directories & files removed with 'make clean' 1746CLEAN_DIRS += $(MODVERDIR) \ 1747 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1748 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1749 1750CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1751 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1752 1753# Directories & files removed with 'make mrproper' 1754MRPROPER_DIRS += include/config include/generated spl tpl \ 1755 .tmp_objdiff 1756MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1757 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1758 drivers/video/fonts/*.S 1759 1760# clean - Delete most, but leave enough to build external modules 1761# 1762clean: rm-dirs := $(CLEAN_DIRS) 1763clean: rm-files := $(CLEAN_FILES) 1764 1765clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1766 1767clean-dirs := $(addprefix _clean_, $(clean-dirs)) 1768 1769PHONY += $(clean-dirs) clean archclean 1770$(clean-dirs): 1771 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1772 1773clean: $(clean-dirs) 1774 $(call cmd,rmdirs) 1775 $(call cmd,rmfiles) 1776 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1777 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1778 -o -name '*.ko.*' -o -name '*.su' \ 1779 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1780 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 1781 -o -name '*.symtypes' -o -name 'modules.order' \ 1782 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1783 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1784 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 1785 -type f -print | xargs rm -f 1786 1787# mrproper - Delete all generated files, including .config 1788# 1789mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1790mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1791mrproper-dirs := $(addprefix _mrproper_,scripts) 1792 1793PHONY += $(mrproper-dirs) mrproper archmrproper 1794$(mrproper-dirs): 1795 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1796 1797mrproper: clean $(mrproper-dirs) 1798 $(call cmd,rmdirs) 1799 $(call cmd,rmfiles) 1800 @rm -f arch/*/include/asm/arch 1801 1802# distclean 1803# 1804PHONY += distclean 1805 1806distclean: mrproper 1807 @find $(srctree) $(RCS_FIND_IGNORE) \ 1808 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1809 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1810 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1811 -o -name '*.pyc' \) \ 1812 -type f -print | xargs rm -f 1813 @rm -f boards.cfg CHANGELOG 1814 1815backup: 1816 F=`basename $(srctree)` ; cd .. ; \ 1817 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1818 1819help: 1820 @echo 'Cleaning targets:' 1821 @echo ' clean - Remove most generated files but keep the config' 1822 @echo ' mrproper - Remove all generated files + config + various backup files' 1823 @echo ' distclean - mrproper + remove editor backup and patch files' 1824 @echo '' 1825 @echo 'Configuration targets:' 1826 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1827 @echo '' 1828 @echo 'Test targets:' 1829 @echo '' 1830 @echo ' check - Run all automated tests that use sandbox' 1831 @echo ' qcheck - Run quick automated tests that use sandbox' 1832 @echo '' 1833 @echo 'Other generic targets:' 1834 @echo ' all - Build all necessary images depending on configuration' 1835 @echo ' tests - Build U-Boot for sandbox and run tests' 1836 @echo '* u-boot - Build the bare u-boot' 1837 @echo ' dir/ - Build all files in dir and below' 1838 @echo ' dir/file.[oisS] - Build specified target only' 1839 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1840 @echo ' (requires a recent binutils and recent build (System.map))' 1841 @echo ' tags/ctags - Generate ctags file for editors' 1842 @echo ' etags - Generate etags file for editors' 1843 @echo ' cscope - Generate cscope index' 1844 @echo ' ubootrelease - Output the release version string (use with make -s)' 1845 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1846 @echo " cfg - Don't build, just create the .cfg files" 1847 @echo " envtools - Build only the target-side environment tools" 1848 @echo '' 1849 @echo 'Static analysers' 1850 @echo ' checkstack - Generate a list of stack hogs' 1851 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1852 @echo '' 1853 @echo 'Documentation targets:' 1854 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp 1855 @echo '' 1856 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1857 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1858 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1859 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1860 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1861 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1862 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1863 @echo ' 1: warnings which may be relevant and do not occur too often' 1864 @echo ' 2: warnings which occur quite often but may still be relevant' 1865 @echo ' 3: more obscure warnings, can most likely be ignored' 1866 @echo ' Multiple levels can be combined with W=12 or W=123' 1867 @echo '' 1868 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1869 @echo 'For further info see the ./README file' 1870 1871tests check: 1872 $(srctree)/test/run 1873 1874qcheck: 1875 $(srctree)/test/run quick 1876 1877# Documentation targets 1878# --------------------------------------------------------------------------- 1879DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 1880 linkcheckdocs dochelp refcheckdocs 1881PHONY += $(DOC_TARGETS) 1882$(DOC_TARGETS): scripts_basic FORCE 1883 $(Q)$(MAKE) $(build)=Documentation $@ 1884 1885endif #ifeq ($(config-targets),1) 1886endif #ifeq ($(mixed-targets),1) 1887 1888PHONY += checkstack ubootrelease ubootversion 1889 1890checkstack: 1891 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1892 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1893 1894ubootrelease: 1895 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1896 1897ubootversion: 1898 @echo $(UBOOTVERSION) 1899 1900# Single targets 1901# --------------------------------------------------------------------------- 1902# Single targets are compatible with: 1903# - build with mixed source and output 1904# - build with separate output dir 'make O=...' 1905# - external modules 1906# 1907# target-dir => where to store outputfile 1908# build-dir => directory in kernel source tree to use 1909 1910ifeq ($(KBUILD_EXTMOD),) 1911 build-dir = $(patsubst %/,%,$(dir $@)) 1912 target-dir = $(dir $@) 1913else 1914 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1915 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1916 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1917endif 1918 1919%.s: %.c prepare scripts FORCE 1920 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1921%.i: %.c prepare scripts FORCE 1922 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1923%.o: %.c prepare scripts FORCE 1924 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1925%.lst: %.c prepare scripts FORCE 1926 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1927%.s: %.S prepare scripts FORCE 1928 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1929%.o: %.S prepare scripts FORCE 1930 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1931%.symtypes: %.c prepare scripts FORCE 1932 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1933 1934# Modules 1935/: prepare scripts FORCE 1936 $(cmd_crmodverdir) 1937 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1938 $(build)=$(build-dir) 1939%/: prepare scripts FORCE 1940 $(cmd_crmodverdir) 1941 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1942 $(build)=$(build-dir) 1943%.ko: prepare scripts FORCE 1944 $(cmd_crmodverdir) 1945 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1946 $(build)=$(build-dir) $(@:.ko=.o) 1947 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1948 1949# Consistency checks 1950# --------------------------------------------------------------------------- 1951 1952PHONY += coccicheck 1953 1954coccicheck: 1955 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1956 1957# FIXME Should go into a make.lib or something 1958# =========================================================================== 1959 1960quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1961 cmd_rmdirs = rm -rf $(rm-dirs) 1962 1963quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1964 cmd_rmfiles = rm -f $(rm-files) 1965 1966# read all saved command lines 1967 1968targets := $(wildcard $(sort $(targets))) 1969cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1970 1971ifneq ($(cmd_files),) 1972 $(cmd_files): ; # Do not try to update included dependency files 1973 include $(cmd_files) 1974endif 1975 1976endif # skip-makefile 1977 1978PHONY += FORCE 1979FORCE: 1980 1981# Declare the contents of the .PHONY variable as phony. We keep that 1982# information in a variable so we can use it in if_changed and friends. 1983.PHONY: $(PHONY) 1984