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) 880 881# Avoid 'warning: u-boot-spl has a LOAD segment with RWX permissions' 882LDFLAGS_u-boot += $(call ld-option,--no-warn-rwx-segments) 883 884# Avoid 'missing .note.GNU-stack section implies executable stack' 885LDFLAGS_u-boot += -z noexecstack 886 887ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 888LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 889endif 890 891# Normally we fill empty space with 0xff 892quiet_cmd_objcopy = OBJCOPY $@ 893cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 894 $(OBJCOPYFLAGS_$(@F)) $< $@ 895 896# Provide a version which does not do this, for use by EFI 897quiet_cmd_zobjcopy = OBJCOPY $@ 898cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 899 900quiet_cmd_efipayload = OBJCOPY $@ 901cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 902 903MKIMAGEOUTPUT ?= /dev/null 904 905quiet_cmd_mkimage = MKIMAGE $@ 906cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 907 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 908 909quiet_cmd_mkfitimage = MKIMAGE $@ 910cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@\ 911 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 912 913quiet_cmd_cat = CAT $@ 914cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 915 916append = cat $(filter-out $< $(PHONY), $^) >> $@ 917 918quiet_cmd_pad_cat = CAT $@ 919cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 920 921cfg: u-boot.cfg 922 923quiet_cmd_cfgcheck = CFGCHK $2 924cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 925 $(srctree)/scripts/config_whitelist.txt $(srctree) 926 927all: $(ALL-y) 928ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 929 @echo >&2 "===================== WARNING ======================" 930 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 931 @echo >&2 "(possibly in a subsequent patch in your series)" 932 @echo >&2 "before sending patches to the mailing list." 933 @echo >&2 "====================================================" 934endif 935ifeq ($(CONFIG_MMC),y) 936ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 937 @echo >&2 "===================== WARNING ======================" 938 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update" 939 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release." 940 @echo >&2 "Failure to update by the deadline may result in board removal." 941 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 942 @echo >&2 "====================================================" 943endif 944endif 945ifeq ($(CONFIG_USB),y) 946ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 947 @echo >&2 "===================== WARNING ======================" 948 @echo >&2 "This board does not use CONFIG_DM_USB. Please update" 949 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release." 950 @echo >&2 "Failure to update by the deadline may result in board removal." 951 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 952 @echo >&2 "====================================================" 953endif 954endif 955ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y) 956ifneq ($(CONFIG_DM_SCSI),y) 957 @echo >&2 "===================== WARNING ======================" 958 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update" 959 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release." 960 @echo >&2 "Failure to update by the deadline may result in board removal." 961 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 962 @echo >&2 "====================================================" 963endif 964endif 965ifeq ($(CONFIG_PCI),y) 966ifneq ($(CONFIG_DM_PCI),y) 967 @echo >&2 "===================== WARNING ======================" 968 @echo >&2 "This board does not use CONFIG_DM_PCI Please update" 969 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release." 970 @echo >&2 "Failure to update by the deadline may result in board removal." 971 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 972 @echo >&2 "====================================================" 973endif 974endif 975ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),) 976ifneq ($(CONFIG_DM_VIDEO),y) 977 @echo >&2 "===================== WARNING ======================" 978 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update" 979 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release." 980 @echo >&2 "Failure to update by the deadline may result in board removal." 981 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 982 @echo >&2 "====================================================" 983endif 984endif 985ifeq ($(CONFIG_OF_EMBED),y) 986 @echo >&2 "===================== WARNING ======================" 987 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 988 @echo >&2 "be used for debugging purposes. Please use" 989 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 990 @echo >&2 "See doc/README.fdt-control for more info." 991 @echo >&2 "====================================================" 992endif 993ifeq ($(CONFIG_SPI),y) 994ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy) 995 @echo >&2 "===================== WARNING ======================" 996 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update" 997 @echo >&2 "the board before v2019.04 for no dm conversion" 998 @echo >&2 "and v2019.07 for partially dm converted drivers." 999 @echo >&2 "Failure to update can lead to driver/board removal" 1000 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 1001 @echo >&2 "====================================================" 1002endif 1003endif 1004ifeq ($(CONFIG_SPI_FLASH),y) 1005ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy) 1006 @echo >&2 "===================== WARNING ======================" 1007 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update" 1008 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release." 1009 @echo >&2 "Failure to update by the deadline may result in board removal." 1010 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info." 1011 @echo >&2 "====================================================" 1012endif 1013endif 1014 @# Check that this build does not use CONFIG options that we do not 1015 @# know about unless they are in Kconfig. All the existing CONFIG 1016 @# options are whitelisted, so new ones should not be added. 1017 $(call cmd,cfgcheck,u-boot.cfg) 1018 1019PHONY += dtbs 1020dtbs: dts/dt.dtb 1021 @: 1022dts/dt.dtb: u-boot 1023 $(Q)$(MAKE) $(build)=dts dtbs 1024 1025quiet_cmd_copy = COPY $@ 1026 cmd_copy = cp $< $@ 1027 1028ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1029 1030fit-dtb.blob: dts/dt.dtb FORCE 1031 $(call if_changed,mkimage) 1032 1033MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1034 -a 0 -e 0 -E \ 1035 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1036 1037u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 1038 $(call if_changed,cat) 1039 1040u-boot.bin: u-boot-fit-dtb.bin FORCE 1041 $(call if_changed,copy) 1042else ifeq ($(CONFIG_OF_SEPARATE),y) 1043u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1044 $(call if_changed,cat) 1045 1046u-boot.bin: u-boot-dtb.bin FORCE 1047 $(call if_changed,copy) 1048else 1049u-boot.bin: u-boot-nodtb.bin FORCE 1050 $(call if_changed,copy) 1051endif 1052 1053%.imx: %.bin 1054 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1055 1056%.vyb: %.imx 1057 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1058 1059quiet_cmd_copy = COPY $@ 1060 cmd_copy = cp $< $@ 1061 1062u-boot.dtb: dts/dt.dtb 1063 $(call cmd,copy) 1064 1065OBJCOPYFLAGS_u-boot.hex := -O ihex 1066 1067OBJCOPYFLAGS_u-boot.srec := -O srec 1068 1069u-boot.hex u-boot.srec: u-boot FORCE 1070 $(call if_changed,objcopy) 1071 1072OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1073 1074u-boot-elf.srec: u-boot.elf FORCE 1075 $(call if_changed,objcopy) 1076 1077OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1078 1079spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1080 $(call if_changed,objcopy) 1081 1082OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1083 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1084 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1085 1086OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex) 1087 1088spl/u-boot-spl.hex: spl/u-boot-spl FORCE 1089 $(call if_changed,objcopy) 1090 1091binary_size_check: u-boot-nodtb.bin FORCE 1092 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1093 map_size=$(shell cat u-boot.map | \ 1094 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1095 | sed 's/0X//g' \ 1096 | bc); \ 1097 if [ "" != "$$map_size" ]; then \ 1098 if test $$map_size -ne $$file_size; then \ 1099 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1100 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1101 exit 1; \ 1102 fi \ 1103 fi 1104 1105ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 1106ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1107subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1108else 1109subtract_sys_malloc_f_len = true 1110endif 1111# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1112# so low that the DTB could probably use 90%+ of the available space, for 1113# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1114# safe for now and tweak this later if space becomes tight. 1115# A rejected alternative would be to check that some absolute minimum stack 1116# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1117# deliberately build-specific, to take account of build-to-build stack usage 1118# differences due to different feature sets, there is no common absolute value 1119# to check against. 1120init_sp_bss_offset_check: u-boot.dtb FORCE 1121 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1122 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1123 $(subtract_sys_malloc_f_len) ; \ 1124 quarter_space=$$(($${space} / 4)) ; \ 1125 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1126 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1127 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1128 exit 1 ; \ 1129 fi 1130endif 1131 1132u-boot-nodtb.bin: u-boot FORCE 1133 $(call if_changed,objcopy) 1134 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1135 $(BOARD_SIZE_CHECK) 1136 1137u-boot.ldr: u-boot 1138 $(CREATE_LDR_ENV) 1139 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1140 $(BOARD_SIZE_CHECK) 1141 1142# binman 1143# --------------------------------------------------------------------------- 1144# Use 'make BINMAN_DEBUG=1' to enable debugging 1145quiet_cmd_binman = BINMAN $@ 1146cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \ 1147 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1148 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $< 1149 1150OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1151 1152OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1153 1154u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1155 $(call if_changed,objcopy) 1156 1157# 1158# U-Boot entry point, needed for booting of full-blown U-Boot 1159# from the SPL U-Boot version. 1160# 1161ifndef CONFIG_SYS_UBOOT_START 1162CONFIG_SYS_UBOOT_START := 0 1163endif 1164 1165# Boards with more complex image requirments can provide an .its source file 1166# or a generator script 1167ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1168U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1169else 1170ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1171U_BOOT_ITS := u-boot.its 1172ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1173U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1174endif 1175ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1176U_BOOT_ITS_DEPS += u-boot 1177endif 1178$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1179 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1180 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1181endif 1182endif 1183 1184ifdef CONFIG_SPL_LOAD_FIT 1185MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1186 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1187 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1188 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1189else 1190MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1191 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1192 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1193MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1194 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1195 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1196u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1197CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1198endif 1199 1200MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1201 1202MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1203 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1204 1205MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1206 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1207 $(if $(KEYDIR),-k $(KEYDIR)) 1208 1209MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1210 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1211 1212u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1213 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1214 $(call if_changed,mkimage) 1215 $(BOARD_SIZE_CHECK) 1216 1217ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1218MKIMAGEFLAGS_u-boot.itb = 1219else 1220MKIMAGEFLAGS_u-boot.itb = -E 1221endif 1222 1223u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1224 $(call if_changed,mkfitimage) 1225 $(BOARD_SIZE_CHECK) 1226 1227u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1228 $(call if_changed,mkimage) 1229 1230u-boot.sha1: u-boot.bin 1231 tools/ubsha1 u-boot.bin 1232 1233u-boot.dis: u-boot 1234 $(OBJDUMP) -d $< > $@ 1235 1236ifneq ($(CONFIG_SPL_PAYLOAD),) 1237SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1238else 1239SPL_PAYLOAD := u-boot.bin 1240endif 1241 1242OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1243 --pad-to=$(CONFIG_SPL_PAD_TO) 1244u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1245 $(call if_changed,pad_cat) 1246 1247ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1248MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1249 1250lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1251 $(call if_changed,mkimage) 1252 1253OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1254 1255lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1256 $(call if_changed,objcopy) 1257 1258OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1259 1260lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1261 $(call if_changed,objcopy) 1262 1263lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1264 $(call if_changed,cat) 1265 1266CLEAN_FILES += lpc32xx-* 1267endif 1268 1269OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1270 --pad-to=$(CONFIG_TPL_PAD_TO) 1271tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1272 $(call if_changed,pad_cat) 1273 1274SPL: spl/u-boot-spl.bin FORCE 1275 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1276 1277ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1278flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1279 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1280endif 1281 1282u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1283 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1284 1285MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1286 1287u-boot.ubl: u-boot-with-spl.bin FORCE 1288 $(call if_changed,mkimage) 1289 1290MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1291 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1292 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1293spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1294 $(call if_changed,mkimage) 1295 1296OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1297u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1298 $(call if_changed,pad_cat) 1299 1300u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1301 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1302u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1303 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1304 1305# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1306# Both images are created using mkimage (crc etc), so that the ROM 1307# bootloader can check its integrity. Padding needs to be done to the 1308# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1309# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1310# The resulting image containing both U-Boot images is called u-boot.spr 1311MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1312 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1313spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1314 $(call if_changed,mkimage) 1315 1316OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1317 --gap-fill=0xff 1318u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1319 $(call if_changed,pad_cat) 1320 1321ifneq ($(CONFIG_ARCH_SOCFPGA),) 1322quiet_cmd_socboot = SOCBOOT $@ 1323cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1324 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1325 u-boot.img > $@ || rm -f $@ 1326u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1327 $(call if_changed,socboot) 1328endif 1329 1330ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1331u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1332 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1333 $(call if_changed,binman) 1334 1335ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1336OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1337u-boot-br.bin: u-boot FORCE 1338 $(call if_changed,objcopy) 1339endif 1340endif 1341 1342# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1343# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1344# the middle. This is handled by binman based on an image description in the 1345# board's device tree. 1346ifneq ($(CONFIG_X86_RESET_VECTOR),) 1347rom: u-boot.rom FORCE 1348 1349refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1350 $(call if_changed,copy) 1351 1352quiet_cmd_ldr = LD $@ 1353cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1354 $(filter-out FORCE,$^) -o $@ 1355 1356u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1357 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1358 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1359 $(call if_changed,binman) 1360 1361OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1362u-boot-x86-16bit.bin: u-boot FORCE 1363 $(call if_changed,objcopy) 1364endif 1365 1366ifneq ($(CONFIG_ARCH_SUNXI),) 1367ifeq ($(CONFIG_ARM64),) 1368u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1369 $(call if_changed,binman) 1370else 1371u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1372 $(call if_changed,cat) 1373endif 1374endif 1375 1376ifneq ($(CONFIG_TEGRA),) 1377ifneq ($(CONFIG_BINMAN),) 1378# Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin 1379%-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \ 1380 spl/%-spl %.bin FORCE 1381 $(call if_changed,binman) 1382else 1383OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1384u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1385 $(call if_changed,pad_cat) 1386 1387OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1388u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1389 $(call if_changed,pad_cat) 1390 1391u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1392 $(call if_changed,copy) 1393endif # binman 1394endif 1395 1396OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1397u-boot-app.efi: u-boot FORCE 1398 $(call if_changed,zobjcopy) 1399 1400u-boot.bin.o: u-boot.bin FORCE 1401 $(call if_changed,efipayload) 1402 1403u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1404 $(call if_changed_dep,cpp_lds) 1405 1406# Rule to link the EFI payload which contains a stub and a U-Boot binary 1407quiet_cmd_u-boot_payload ?= LD $@ 1408 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1409 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1410 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1411 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1412 1413u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1414 $(call if_changed,u-boot_payload) 1415 1416OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1417u-boot-payload.efi: u-boot-payload FORCE 1418 $(call if_changed,zobjcopy) 1419 1420u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1421 $(call if_changed,cat) 1422 1423#Add a target to create boot binary having SPL binary in PBI format 1424#concatenated with u-boot binary. It is need by PowerPC SoC having 1425#internal SRAM <= 512KB. 1426MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1427 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1428 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1429 1430spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1431 $(call if_changed,mkimage) 1432 1433ifeq ($(ARCH),arm) 1434UBOOT_BINLOAD := u-boot.img 1435else 1436ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1437UBOOT_BINLOAD := u-boot-with-dtb.bin 1438else 1439UBOOT_BINLOAD := u-boot.bin 1440endif 1441endif 1442 1443OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1444 --gap-fill=0xff 1445 1446u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1447 $(call if_changed,pad_cat) 1448 1449# PPC4xx needs the SPL at the end of the image, since the reset vector 1450# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1451# and need to introduce a new build target with the full blown U-Boot 1452# at the start padded up to the start of the SPL image. And then concat 1453# the SPL image to the end. 1454 1455OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1456 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1457u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1458 $(call if_changed,pad_cat) 1459 1460# Create a new ELF from a raw binary file. 1461ifndef PLATFORM_ELFENTRY 1462 PLATFORM_ELFENTRY = "_start" 1463endif 1464quiet_cmd_u-boot-elf ?= LD $@ 1465 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1466 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1467 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1468u-boot.elf: u-boot.bin 1469 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1470 $(call if_changed,u-boot-elf) 1471 1472# MediaTek's ARM-based u-boot needs a header to contains its load address 1473# which is parsed by the BootROM. 1474# If the SPL build is enabled, the header will be added to the spl binary, 1475# and the spl binary and the u-boot.img will be combined into one file. 1476# Otherwise the header will be added to the u-boot.bin directly. 1477 1478ifeq ($(CONFIG_SPL),y) 1479spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1480 1481u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE 1482 $(call if_changed,binman) 1483else 1484MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1485 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1486 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1487 1488u-boot-mtk.bin: u-boot.bin FORCE 1489 $(call if_changed,mkimage) 1490endif 1491 1492ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1493 1494# Rule to link u-boot 1495# May be overridden by arch/$(ARCH)/config.mk 1496quiet_cmd_u-boot__ ?= LD $@ 1497 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1498 -T u-boot.lds $(u-boot-init) \ 1499 --start-group $(u-boot-main) --end-group \ 1500 $(PLATFORM_LIBS) -Map u-boot.map; \ 1501 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1502 1503quiet_cmd_smap = GEN common/system_map.o 1504cmd_smap = \ 1505 smap=`$(call SYSTEM_MAP,u-boot) | \ 1506 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1507 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1508 -c $(srctree)/common/system_map.c -o common/system_map.o 1509 1510u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1511 +$(call if_changed,u-boot__) 1512ifeq ($(CONFIG_KALLSYMS),y) 1513 $(call cmd,smap) 1514 $(call cmd,u-boot__) common/system_map.o 1515endif 1516 1517ifeq ($(CONFIG_RISCV),y) 1518 @tools/prelink-riscv $@ 0 1519endif 1520 1521quiet_cmd_sym ?= SYM $@ 1522 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1523u-boot.sym: u-boot FORCE 1524 $(call if_changed,sym) 1525 1526# The actual objects are generated when descending, 1527# make sure no implicit rule kicks in 1528$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1529 1530# Handle descending into subdirectories listed in $(vmlinux-dirs) 1531# Preset locale variables to speed up the build process. Limit locale 1532# tweaks to this spot to avoid wrong language settings when running 1533# make menuconfig etc. 1534# Error messages still appears in the original language 1535 1536PHONY += $(u-boot-dirs) 1537$(u-boot-dirs): prepare scripts 1538 $(Q)$(MAKE) $(build)=$@ 1539 1540tools: prepare 1541# The "tools" are needed early 1542$(filter-out tools, $(u-boot-dirs)): tools 1543# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1544# is "yes"), so compile examples after U-Boot is compiled. 1545examples: $(filter-out examples, $(u-boot-dirs)) 1546 1547define filechk_uboot.release 1548 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1549endef 1550 1551# Store (new) UBOOTRELEASE string in include/config/uboot.release 1552include/config/uboot.release: include/config/auto.conf FORCE 1553 $(call filechk,uboot.release) 1554 1555 1556# Things we need to do before we recursively start building the kernel 1557# or the modules are listed in "prepare". 1558# A multi level approach is used. prepareN is processed before prepareN-1. 1559# archprepare is used in arch Makefiles and when processed asm symlink, 1560# version.h and scripts_basic is processed / created. 1561 1562# Listed in dependency order 1563PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1564 1565# prepare3 is used to check if we are building in a separate output directory, 1566# and if so do: 1567# 1) Check that make has not been executed in the kernel src $(srctree) 1568prepare3: include/config/uboot.release 1569ifneq ($(KBUILD_SRC),) 1570 @$(kecho) ' Using $(srctree) as source for U-Boot' 1571 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1572 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1573 echo >&2 " in the '$(srctree)' directory.";\ 1574 /bin/false; \ 1575 fi; 1576endif 1577 1578# prepare2 creates a makefile if using a separate output directory 1579prepare2: prepare3 outputmakefile cfg 1580 1581prepare1: prepare2 $(version_h) $(timestamp_h) \ 1582 include/config/auto.conf 1583ifeq ($(wildcard $(LDSCRIPT)),) 1584 @echo >&2 " Could not find linker script." 1585 @/bin/false 1586endif 1587 1588ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1589prepare1: $(defaultenv_h) 1590 1591envtools: $(defaultenv_h) 1592endif 1593 1594archprepare: prepare1 scripts_basic 1595 1596prepare0: archprepare FORCE 1597 $(Q)$(MAKE) $(build)=. 1598 1599# All the preparing.. 1600prepare: prepare0 1601 1602# Generate some files 1603# --------------------------------------------------------------------------- 1604 1605define filechk_version.h 1606 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1607 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1608 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1609 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1610endef 1611 1612# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1613# The BSD date on the other hand behaves different and would produce errors 1614# with the misused '-d' switch. Respect that and search a working date with 1615# well known pre- and suffixes for the GNU variant of date. 1616define filechk_timestamp.h 1617 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1618 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1619 DATE=""; \ 1620 for date in gdate date.gnu date; do \ 1621 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1622 done; \ 1623 if test -n "$${DATE}"; then \ 1624 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1625 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1626 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1627 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1628 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1629 else \ 1630 return 42; \ 1631 fi; \ 1632 else \ 1633 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1634 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1635 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1636 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1637 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1638 fi) 1639endef 1640 1641define filechk_defaultenv.h 1642 (grep -v '^#' | \ 1643 grep -v '^$$' | \ 1644 tr '\n' '\0' | \ 1645 sed -e 's/\\\x0/\n/' | \ 1646 xxd -i ; echo ", 0x00" ; ) 1647endef 1648 1649$(version_h): include/config/uboot.release FORCE 1650 $(call filechk,version.h) 1651 1652$(timestamp_h): $(srctree)/Makefile FORCE 1653 $(call filechk,timestamp.h) 1654 1655$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1656 $(call filechk,defaultenv.h) 1657 1658# --------------------------------------------------------------------------- 1659quiet_cmd_cpp_lds = LDS $@ 1660cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1661 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1662 1663u-boot.lds: $(LDSCRIPT) prepare FORCE 1664 $(call if_changed_dep,cpp_lds) 1665 1666spl/u-boot-spl.bin: spl/u-boot-spl 1667 @: 1668spl/u-boot-spl: tools prepare \ 1669 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1670 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1671 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1672 1673spl/sunxi-spl.bin: spl/u-boot-spl 1674 @: 1675 1676spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1677 @: 1678 1679spl/u-boot-spl.sfp: spl/u-boot-spl 1680 @: 1681 1682spl/boot.bin: spl/u-boot-spl 1683 @: 1684 1685tpl/u-boot-tpl.bin: tools prepare \ 1686 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1687 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1688 1689TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1690 1691FIND := find 1692FINDFLAGS := -L 1693 1694tags ctags: 1695 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1696 -name '*.[chS]' -print` 1697 ln -s ctags tags 1698 1699etags: 1700 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1701 -name '*.[chS]' -print` 1702cscope: 1703 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1704 cscope.files 1705 cscope -b -q -k 1706 1707SYSTEM_MAP = \ 1708 $(NM) $1 | \ 1709 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1710 LC_ALL=C sort 1711System.map: u-boot 1712 @$(call SYSTEM_MAP,$<) > $@ 1713 1714######################################################################### 1715 1716# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1717# R_AARCH64_RELATIVE (64-bit). 1718checkarmreloc: u-boot 1719 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1720 grep R_A | sort -u`"; \ 1721 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1722 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1723 echo "$< contains unexpected relocations: $$RELOC"; \ 1724 false; \ 1725 fi 1726 1727envtools: scripts_basic $(version_h) $(timestamp_h) 1728 $(Q)$(MAKE) $(build)=tools/env 1729 1730tools-only: scripts_basic $(version_h) $(timestamp_h) 1731 $(Q)$(MAKE) $(build)=tools 1732 1733tools-all: export HOST_TOOLS_ALL=y 1734tools-all: envtools tools ; 1735 1736cross_tools: export CROSS_BUILD_TOOLS=y 1737cross_tools: tools ; 1738 1739.PHONY : CHANGELOG 1740CHANGELOG: 1741 git log --no-merges U-Boot-1_1_5.. | \ 1742 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1743 1744######################################################################### 1745 1746### 1747# Cleaning is done on three levels. 1748# make clean Delete most generated files 1749# Leave enough to build external modules 1750# make mrproper Delete the current configuration, and all generated files 1751# make distclean Remove editor backup files, patch leftover files and the like 1752 1753# Directories & files removed with 'make clean' 1754CLEAN_DIRS += $(MODVERDIR) \ 1755 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1756 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1757 1758CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1759 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1760 1761# Directories & files removed with 'make mrproper' 1762MRPROPER_DIRS += include/config include/generated spl tpl \ 1763 .tmp_objdiff 1764MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1765 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1766 drivers/video/fonts/*.S 1767 1768# clean - Delete most, but leave enough to build external modules 1769# 1770clean: rm-dirs := $(CLEAN_DIRS) 1771clean: rm-files := $(CLEAN_FILES) 1772 1773clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1774 1775clean-dirs := $(addprefix _clean_, $(clean-dirs)) 1776 1777PHONY += $(clean-dirs) clean archclean 1778$(clean-dirs): 1779 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1780 1781clean: $(clean-dirs) 1782 $(call cmd,rmdirs) 1783 $(call cmd,rmfiles) 1784 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1785 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1786 -o -name '*.ko.*' -o -name '*.su' \ 1787 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1788 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 1789 -o -name '*.symtypes' -o -name 'modules.order' \ 1790 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1791 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1792 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 1793 -type f -print | xargs rm -f 1794 1795# mrproper - Delete all generated files, including .config 1796# 1797mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1798mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1799mrproper-dirs := $(addprefix _mrproper_,scripts) 1800 1801PHONY += $(mrproper-dirs) mrproper archmrproper 1802$(mrproper-dirs): 1803 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1804 1805mrproper: clean $(mrproper-dirs) 1806 $(call cmd,rmdirs) 1807 $(call cmd,rmfiles) 1808 @rm -f arch/*/include/asm/arch 1809 1810# distclean 1811# 1812PHONY += distclean 1813 1814distclean: mrproper 1815 @find $(srctree) $(RCS_FIND_IGNORE) \ 1816 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1817 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1818 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1819 -o -name '*.pyc' \) \ 1820 -type f -print | xargs rm -f 1821 @rm -f boards.cfg CHANGELOG 1822 1823backup: 1824 F=`basename $(srctree)` ; cd .. ; \ 1825 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1826 1827help: 1828 @echo 'Cleaning targets:' 1829 @echo ' clean - Remove most generated files but keep the config' 1830 @echo ' mrproper - Remove all generated files + config + various backup files' 1831 @echo ' distclean - mrproper + remove editor backup and patch files' 1832 @echo '' 1833 @echo 'Configuration targets:' 1834 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1835 @echo '' 1836 @echo 'Test targets:' 1837 @echo '' 1838 @echo ' check - Run all automated tests that use sandbox' 1839 @echo ' qcheck - Run quick automated tests that use sandbox' 1840 @echo '' 1841 @echo 'Other generic targets:' 1842 @echo ' all - Build all necessary images depending on configuration' 1843 @echo ' tests - Build U-Boot for sandbox and run tests' 1844 @echo '* u-boot - Build the bare u-boot' 1845 @echo ' dir/ - Build all files in dir and below' 1846 @echo ' dir/file.[oisS] - Build specified target only' 1847 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1848 @echo ' (requires a recent binutils and recent build (System.map))' 1849 @echo ' tags/ctags - Generate ctags file for editors' 1850 @echo ' etags - Generate etags file for editors' 1851 @echo ' cscope - Generate cscope index' 1852 @echo ' ubootrelease - Output the release version string (use with make -s)' 1853 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1854 @echo " cfg - Don't build, just create the .cfg files" 1855 @echo " envtools - Build only the target-side environment tools" 1856 @echo '' 1857 @echo 'Static analysers' 1858 @echo ' checkstack - Generate a list of stack hogs' 1859 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1860 @echo '' 1861 @echo 'Documentation targets:' 1862 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp 1863 @echo '' 1864 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1865 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1866 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1867 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1868 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1869 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1870 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1871 @echo ' 1: warnings which may be relevant and do not occur too often' 1872 @echo ' 2: warnings which occur quite often but may still be relevant' 1873 @echo ' 3: more obscure warnings, can most likely be ignored' 1874 @echo ' Multiple levels can be combined with W=12 or W=123' 1875 @echo '' 1876 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1877 @echo 'For further info see the ./README file' 1878 1879tests check: 1880 $(srctree)/test/run 1881 1882qcheck: 1883 $(srctree)/test/run quick 1884 1885# Documentation targets 1886# --------------------------------------------------------------------------- 1887DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 1888 linkcheckdocs dochelp refcheckdocs 1889PHONY += $(DOC_TARGETS) 1890$(DOC_TARGETS): scripts_basic FORCE 1891 $(Q)$(MAKE) $(build)=Documentation $@ 1892 1893endif #ifeq ($(config-targets),1) 1894endif #ifeq ($(mixed-targets),1) 1895 1896PHONY += checkstack ubootrelease ubootversion 1897 1898checkstack: 1899 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1900 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1901 1902ubootrelease: 1903 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1904 1905ubootversion: 1906 @echo $(UBOOTVERSION) 1907 1908# Single targets 1909# --------------------------------------------------------------------------- 1910# Single targets are compatible with: 1911# - build with mixed source and output 1912# - build with separate output dir 'make O=...' 1913# - external modules 1914# 1915# target-dir => where to store outputfile 1916# build-dir => directory in kernel source tree to use 1917 1918ifeq ($(KBUILD_EXTMOD),) 1919 build-dir = $(patsubst %/,%,$(dir $@)) 1920 target-dir = $(dir $@) 1921else 1922 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1923 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1924 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1925endif 1926 1927%.s: %.c prepare scripts FORCE 1928 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1929%.i: %.c prepare scripts FORCE 1930 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1931%.o: %.c prepare scripts FORCE 1932 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1933%.lst: %.c prepare scripts FORCE 1934 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1935%.s: %.S prepare scripts FORCE 1936 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1937%.o: %.S prepare scripts FORCE 1938 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1939%.symtypes: %.c prepare scripts FORCE 1940 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1941 1942# Modules 1943/: prepare scripts FORCE 1944 $(cmd_crmodverdir) 1945 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1946 $(build)=$(build-dir) 1947%/: prepare scripts FORCE 1948 $(cmd_crmodverdir) 1949 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1950 $(build)=$(build-dir) 1951%.ko: prepare scripts FORCE 1952 $(cmd_crmodverdir) 1953 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1954 $(build)=$(build-dir) $(@:.ko=.o) 1955 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1956 1957# Consistency checks 1958# --------------------------------------------------------------------------- 1959 1960PHONY += coccicheck 1961 1962coccicheck: 1963 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1964 1965# FIXME Should go into a make.lib or something 1966# =========================================================================== 1967 1968quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1969 cmd_rmdirs = rm -rf $(rm-dirs) 1970 1971quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1972 cmd_rmfiles = rm -f $(rm-files) 1973 1974# read all saved command lines 1975 1976targets := $(wildcard $(sort $(targets))) 1977cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1978 1979ifneq ($(cmd_files),) 1980 $(cmd_files): ; # Do not try to update included dependency files 1981 include $(cmd_files) 1982endif 1983 1984endif # skip-makefile 1985 1986PHONY += FORCE 1987FORCE: 1988 1989# Declare the contents of the .PHONY variable as phony. We keep that 1990# information in a variable so we can use it in if_changed and friends. 1991.PHONY: $(PHONY) 1992