1# 2# SPDX-License-Identifier: GPL-2.0+ 3# 4 5VERSION = 2018 6PATCHLEVEL = 05 7SUBLEVEL = 8EXTRAVERSION = -rc3 9NAME = 10 11# *DOCUMENTATION* 12# To see a list of typical targets execute "make help" 13# More info can be located in ./README 14# Comments in this file are targeted only to the developer, do not 15# expect to learn how to build the kernel reading this file. 16 17# o Do not use make's built-in rules and variables 18# (this increases performance and avoids hard-to-debug behaviour); 19# o Look for make include files relative to root of kernel src 20MAKEFLAGS += -rR --include-dir=$(CURDIR) 21 22# Avoid funny character set dependencies 23unexport LC_ALL 24LC_COLLATE=C 25LC_NUMERIC=C 26export LC_COLLATE LC_NUMERIC 27 28# Avoid interference with shell env settings 29unexport GREP_OPTIONS 30 31# We are using a recursive build, so we need to do a little thinking 32# to get the ordering right. 33# 34# Most importantly: sub-Makefiles should only ever modify files in 35# their own directory. If in some directory we have a dependency on 36# a file in another dir (which doesn't happen often, but it's often 37# unavoidable when linking the built-in.o targets which finally 38# turn into vmlinux), we will call a sub make in that other dir, and 39# after that we are sure that everything which is in that other dir 40# is now up to date. 41# 42# The only cases where we need to modify files which have global 43# effects are thus separated out and done before the recursive 44# descending is started. They are now explicitly listed as the 45# prepare rule. 46 47# Beautify output 48# --------------------------------------------------------------------------- 49# 50# Normally, we echo the whole command before executing it. By making 51# that echo $($(quiet)$(cmd)), we now have the possibility to set 52# $(quiet) to choose other forms of output instead, e.g. 53# 54# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 55# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 56# 57# If $(quiet) is empty, the whole command will be printed. 58# If it is set to "quiet_", only the short version will be printed. 59# If it is set to "silent_", nothing will be printed at all, since 60# the variable $(silent_cmd_cc_o_c) doesn't exist. 61# 62# A simple variant is to prefix commands with $(Q) - that's useful 63# for commands that shall be hidden in non-verbose mode. 64# 65# $(Q)ln $@ :< 66# 67# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 68# If KBUILD_VERBOSE equals 1 then the above command is displayed. 69# 70# To put more focus on warnings, be less verbose as default 71# Use 'make V=1' to see the full commands 72 73ifeq ("$(origin V)", "command line") 74 KBUILD_VERBOSE = $(V) 75endif 76ifndef KBUILD_VERBOSE 77 KBUILD_VERBOSE = 0 78endif 79 80ifeq ($(KBUILD_VERBOSE),1) 81 quiet = 82 Q = 83else 84 quiet=quiet_ 85 Q = @ 86endif 87 88# If the user is running make -s (silent mode), suppress echoing of 89# commands 90 91ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 92ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 93 quiet=silent_ 94endif 95else # make-3.8x 96ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 97 quiet=silent_ 98endif 99endif 100 101export quiet Q KBUILD_VERBOSE 102 103# kbuild supports saving output files in a separate directory. 104# To locate output files in a separate directory two syntaxes are supported. 105# In both cases the working directory must be the root of the kernel src. 106# 1) O= 107# Use "make O=dir/to/store/output/files/" 108# 109# 2) Set KBUILD_OUTPUT 110# Set the environment variable KBUILD_OUTPUT to point to the directory 111# where the output files shall be placed. 112# export KBUILD_OUTPUT=dir/to/store/output/files/ 113# make 114# 115# The O= assignment takes precedence over the KBUILD_OUTPUT environment 116# variable. 117 118# KBUILD_SRC is set on invocation of make in OBJ directory 119# KBUILD_SRC is not intended to be used by the regular user (for now) 120ifeq ($(KBUILD_SRC),) 121 122# OK, Make called in directory where kernel src resides 123# Do we want to locate output files in a separate directory? 124ifeq ("$(origin O)", "command line") 125 KBUILD_OUTPUT := $(O) 126endif 127 128# That's our default target when none is given on the command line 129PHONY := _all 130_all: 131 132# Cancel implicit rules on top Makefile 133$(CURDIR)/Makefile Makefile: ; 134 135ifneq ($(KBUILD_OUTPUT),) 136# Invoke a second make in the output directory, passing relevant variables 137# check that the output directory actually exists 138saved-output := $(KBUILD_OUTPUT) 139KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 140 && /bin/pwd) 141$(if $(KBUILD_OUTPUT),, \ 142 $(error failed to create output directory "$(saved-output)")) 143 144PHONY += $(MAKECMDGOALS) sub-make 145 146$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 147 @: 148 149sub-make: FORCE 150 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 151 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 152 153# Leave processing to above invocation of make 154skip-makefile := 1 155endif # ifneq ($(KBUILD_OUTPUT),) 156endif # ifeq ($(KBUILD_SRC),) 157 158# We process the rest of the Makefile if this is the final invocation of make 159ifeq ($(skip-makefile),) 160 161# Do not print "Entering directory ...", 162# but we want to display it when entering to the output directory 163# so that IDEs/editors are able to understand relative filenames. 164MAKEFLAGS += --no-print-directory 165 166# Call a source code checker (by default, "sparse") as part of the 167# C compilation. 168# 169# Use 'make C=1' to enable checking of only re-compiled files. 170# Use 'make C=2' to enable checking of *all* source files, regardless 171# of whether they are re-compiled or not. 172# 173# See the file "Documentation/sparse.txt" for more details, including 174# where to get the "sparse" utility. 175 176ifeq ("$(origin C)", "command line") 177 KBUILD_CHECKSRC = $(C) 178endif 179ifndef KBUILD_CHECKSRC 180 KBUILD_CHECKSRC = 0 181endif 182 183# Use make M=dir to specify directory of external module to build 184# Old syntax make ... SUBDIRS=$PWD is still supported 185# Setting the environment variable KBUILD_EXTMOD take precedence 186ifdef SUBDIRS 187 KBUILD_EXTMOD ?= $(SUBDIRS) 188endif 189 190ifeq ("$(origin M)", "command line") 191 KBUILD_EXTMOD := $(M) 192endif 193 194# If building an external module we do not care about the all: rule 195# but instead _all depend on modules 196PHONY += all 197ifeq ($(KBUILD_EXTMOD),) 198_all: all 199else 200_all: modules 201endif 202 203ifeq ($(KBUILD_SRC),) 204 # building in the source tree 205 srctree := . 206else 207 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 # building in a subdirectory of the source tree 209 srctree := .. 210 else 211 srctree := $(KBUILD_SRC) 212 endif 213endif 214objtree := . 215src := $(srctree) 216obj := $(objtree) 217 218VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 220export srctree objtree VPATH 221 222# Make sure CDPATH settings don't interfere 223unexport CDPATH 224 225######################################################################### 226 227HOSTARCH := $(shell uname -m | \ 228 sed -e s/i.86/x86/ \ 229 -e s/sun4u/sparc64/ \ 230 -e s/arm.*/arm/ \ 231 -e s/sa110/arm/ \ 232 -e s/ppc64/powerpc/ \ 233 -e s/ppc/powerpc/ \ 234 -e s/macppc/powerpc/\ 235 -e s/sh.*/sh/) 236 237HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 238 sed -e 's/\(cygwin\).*/cygwin/') 239 240export HOSTARCH HOSTOS 241 242######################################################################### 243 244# set default to nothing for native builds 245ifeq ($(HOSTARCH),$(ARCH)) 246CROSS_COMPILE ?= 247endif 248 249KCONFIG_CONFIG ?= .config 250export KCONFIG_CONFIG 251 252# SHELL used by kbuild 253CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 254 else if [ -x /bin/bash ]; then echo /bin/bash; \ 255 else echo sh; fi ; fi) 256 257HOSTCC = cc 258HOSTCXX = c++ 259HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 260 $(if $(CONFIG_TOOLS_DEBUG),-g) 261HOSTCXXFLAGS = -O2 262 263ifeq ($(HOSTOS),cygwin) 264HOSTCFLAGS += -ansi 265endif 266 267# Mac OS X / Darwin's C preprocessor is Apple specific. It 268# generates numerous errors and warnings. We want to bypass it 269# and use GNU C's cpp. To do this we pass the -traditional-cpp 270# option to the compiler. Note that the -traditional-cpp flag 271# DOES NOT have the same semantics as GNU C's flag, all it does 272# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 273# 274# Apple's linker is similar, thanks to the new 2 stage linking 275# multiple symbol definitions are treated as errors, hence the 276# -multiply_defined suppress option to turn off this error. 277# 278ifeq ($(HOSTOS),darwin) 279# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 280DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 281DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 282 283os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 284 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 285 286# Snow Leopards build environment has no longer restrictions as described above 287HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 288HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 289HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 290 291# since Lion (10.7) ASLR is on by default, but we use linker generated lists 292# in some host tools which is a problem then ... so disable ASLR for these 293# tools 294HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 295endif 296 297# Decide whether to build built-in, modular, or both. 298# Normally, just do built-in. 299 300KBUILD_MODULES := 301KBUILD_BUILTIN := 1 302 303# If we have only "make modules", don't compile built-in objects. 304# When we're building modules with modversions, we need to consider 305# the built-in objects during the descend as well, in order to 306# make sure the checksums are up to date before we record them. 307 308ifeq ($(MAKECMDGOALS),modules) 309 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 310endif 311 312# If we have "make <whatever> modules", compile modules 313# in addition to whatever we do anyway. 314# Just "make" or "make all" shall build modules as well 315 316# U-Boot does not need modules 317#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 318# KBUILD_MODULES := 1 319#endif 320 321#ifeq ($(MAKECMDGOALS),) 322# KBUILD_MODULES := 1 323#endif 324 325export KBUILD_MODULES KBUILD_BUILTIN 326export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 327 328# We need some generic definitions (do not try to remake the file). 329scripts/Kbuild.include: ; 330include scripts/Kbuild.include 331 332# Make variables (CC, etc...) 333 334AS = $(CROSS_COMPILE)as 335# Always use GNU ld 336ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 337LD = $(CROSS_COMPILE)ld.bfd 338else 339LD = $(CROSS_COMPILE)ld 340endif 341CC = $(CROSS_COMPILE)gcc 342CPP = $(CC) -E 343AR = $(CROSS_COMPILE)ar 344NM = $(CROSS_COMPILE)nm 345LDR = $(CROSS_COMPILE)ldr 346STRIP = $(CROSS_COMPILE)strip 347OBJCOPY = $(CROSS_COMPILE)objcopy 348OBJDUMP = $(CROSS_COMPILE)objdump 349AWK = awk 350PERL = perl 351PYTHON ?= python 352DTC ?= $(objtree)/scripts/dtc/dtc 353CHECK = sparse 354 355CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 356 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 357 358KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 359 360KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 361 -Wno-format-security \ 362 -fno-builtin -ffreestanding 363KBUILD_CFLAGS += -fshort-wchar 364KBUILD_AFLAGS := -D__ASSEMBLY__ 365 366# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 367UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 368UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 369 370export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 371export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 372export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC 373export CPP AR NM LDR STRIP OBJCOPY OBJDUMP 374export MAKE AWK PERL PYTHON 375export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 376 377export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS 378export KBUILD_CFLAGS KBUILD_AFLAGS 379 380# When compiling out-of-tree modules, put MODVERDIR in the module 381# tree rather than in the kernel tree. The kernel tree might 382# even be read-only. 383export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 384 385# Files to ignore in find ... statements 386 387export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 388 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 389 -prune -o 390export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 391 --exclude CVS --exclude .pc --exclude .hg --exclude .git 392 393# =========================================================================== 394# Rules shared between *config targets and build targets 395 396# Basic helpers built in scripts/ 397PHONY += scripts_basic 398scripts_basic: 399 $(Q)$(MAKE) $(build)=scripts/basic 400 $(Q)rm -f .tmp_quiet_recordmcount 401 402# To avoid any implicit rule to kick in, define an empty command. 403scripts/basic/%: scripts_basic ; 404 405PHONY += outputmakefile 406# outputmakefile generates a Makefile in the output directory, if using a 407# separate output directory. This allows convenient use of make in the 408# output directory. 409outputmakefile: 410ifneq ($(KBUILD_SRC),) 411 $(Q)ln -fsn $(srctree) source 412 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 413 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 414endif 415 416# To make sure we do not include .config for any of the *config targets 417# catch them early, and hand them over to scripts/kconfig/Makefile 418# It is allowed to specify more targets when calling make, including 419# mixing *config targets and build targets. 420# For example 'make oldconfig all'. 421# Detect when mixed targets is specified, and make a second invocation 422# of make so .config is not included in this case either (for *config). 423 424version_h := include/generated/version_autogenerated.h 425timestamp_h := include/generated/timestamp_autogenerated.h 426defaultenv_h := include/generated/defaultenv_autogenerated.h 427 428no-dot-config-targets := clean clobber mrproper distclean \ 429 help %docs check% coccicheck \ 430 ubootversion backup tests 431 432config-targets := 0 433mixed-targets := 0 434dot-config := 1 435 436ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 437 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 438 dot-config := 0 439 endif 440endif 441 442ifeq ($(KBUILD_EXTMOD),) 443 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 444 config-targets := 1 445 ifneq ($(words $(MAKECMDGOALS)),1) 446 mixed-targets := 1 447 endif 448 endif 449endif 450 451ifeq ($(mixed-targets),1) 452# =========================================================================== 453# We're called with mixed targets (*config and build targets). 454# Handle them one by one. 455 456PHONY += $(MAKECMDGOALS) __build_one_by_one 457 458$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 459 @: 460 461__build_one_by_one: 462 $(Q)set -e; \ 463 for i in $(MAKECMDGOALS); do \ 464 $(MAKE) -f $(srctree)/Makefile $$i; \ 465 done 466 467else 468ifeq ($(config-targets),1) 469# =========================================================================== 470# *config targets only - make sure prerequisites are updated, and descend 471# in scripts/kconfig to make the *config target 472 473KBUILD_DEFCONFIG := sandbox_defconfig 474export KBUILD_DEFCONFIG KBUILD_KCONFIG 475 476config: scripts_basic outputmakefile FORCE 477 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 478 479%config: scripts_basic outputmakefile FORCE 480 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 481 482else 483# =========================================================================== 484# Build targets only - this includes vmlinux, arch specific targets, clean 485# targets and others. In general all targets except *config targets. 486 487# Additional helpers built in scripts/ 488# Carefully list dependencies so we do not try to build scripts twice 489# in parallel 490PHONY += scripts 491scripts: scripts_basic include/config/auto.conf 492 $(Q)$(MAKE) $(build)=$(@) 493 494ifeq ($(dot-config),1) 495# Read in config 496-include include/config/auto.conf 497 498# Read in dependencies to all Kconfig* files, make sure to run 499# oldconfig if changes are detected. 500-include include/config/auto.conf.cmd 501 502# To avoid any implicit rule to kick in, define an empty command 503$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 504 505# If .config is newer than include/config/auto.conf, someone tinkered 506# with it and forgot to run make oldconfig. 507# if auto.conf.cmd is missing then we are probably in a cleaned tree so 508# we execute the config step to be sure to catch updated Kconfig files 509include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 510 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 511 @# If the following part fails, include/config/auto.conf should be 512 @# deleted so "make silentoldconfig" will be re-run on the next build. 513 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 514 { rm -f include/config/auto.conf; false; } 515 @# include/config.h has been updated after "make silentoldconfig". 516 @# We need to touch include/config/auto.conf so it gets newer 517 @# than include/config.h. 518 @# Otherwise, 'make silentoldconfig' would be invoked twice. 519 $(Q)touch include/config/auto.conf 520 521u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE 522 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 523 524-include include/autoconf.mk 525-include include/autoconf.mk.dep 526 527# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 528# is up-to-date. When we switch to a different board configuration, old CONFIG 529# macros are still remaining in include/config/auto.conf. Without the following 530# gimmick, wrong config.mk would be included leading nasty warnings/errors. 531ifneq ($(wildcard $(KCONFIG_CONFIG)),) 532ifneq ($(wildcard include/config/auto.conf),) 533autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 534 include/config/auto.conf) 535ifeq ($(autoconf_is_old),) 536include config.mk 537include arch/$(ARCH)/Makefile 538endif 539endif 540endif 541 542# These are set by the arch-specific config.mk. Make sure they are exported 543# so they can be used when building an EFI application. 544export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 545export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 546export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 547export CFLAGS_EFI # Compiler flags to add when building EFI app 548export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 549export EFI_TARGET # binutils target if EFI is natively supported 550 551# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 552# that (or fail if absent). Otherwise, search for a linker script in a 553# standard location. 554 555ifndef LDSCRIPT 556 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 557 ifdef CONFIG_SYS_LDSCRIPT 558 # need to strip off double quotes 559 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 560 endif 561endif 562 563# If there is no specified link script, we look in a number of places for it 564ifndef LDSCRIPT 565 ifeq ($(wildcard $(LDSCRIPT)),) 566 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 567 endif 568 ifeq ($(wildcard $(LDSCRIPT)),) 569 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 570 endif 571 ifeq ($(wildcard $(LDSCRIPT)),) 572 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 573 endif 574endif 575 576else 577# Dummy target needed, because used as prerequisite 578include/config/auto.conf: ; 579endif # $(dot-config) 580 581# 582# Xtensa linker script cannot be preprocessed with -ansi because of 583# preprocessor operations on strings that don't make C identifiers. 584# 585ifeq ($(CONFIG_XTENSA),) 586LDPPFLAGS += -ansi 587endif 588 589ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 590KBUILD_CFLAGS += -Os 591else 592KBUILD_CFLAGS += -O2 593endif 594 595KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 596KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 597 598# change __FILE__ to the relative path from the srctree 599KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 600 601KBUILD_CFLAGS += -g 602# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 603# option to the assembler. 604KBUILD_AFLAGS += -g 605 606# Report stack usage if supported 607# ARC tools based on GCC 7.1 has an issue with stack usage 608# with naked functions, see commit message for more details 609ifndef CONFIG_ARC 610ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 611 KBUILD_CFLAGS += -fstack-usage 612endif 613endif 614 615KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 616ifeq ($(cc-name),clang) 617KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 618KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 619KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 620KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 621KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 622endif 623 624# turn jbsr into jsr for m68k 625ifeq ($(ARCH),m68k) 626ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4) 627KBUILD_AFLAGS += -Wa,-gstabs,-S 628endif 629endif 630 631# Prohibit date/time macros, which would make the build non-deterministic 632KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 633 634include scripts/Makefile.extrawarn 635 636# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 637KBUILD_CPPFLAGS += $(KCPPFLAGS) 638KBUILD_AFLAGS += $(KAFLAGS) 639KBUILD_CFLAGS += $(KCFLAGS) 640 641# Use UBOOTINCLUDE when you must reference the include/ directory. 642# Needed to be compatible with the O= option 643UBOOTINCLUDE := \ 644 -Iinclude \ 645 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 646 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 647 $(if $(CONFIG_HAS_THUMB2),, \ 648 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \ 649 -I$(srctree)/arch/$(ARCH)/include \ 650 -include $(srctree)/include/linux/kconfig.h 651 652NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 653CHECKFLAGS += $(NOSTDINC_FLAGS) 654 655# FIX ME 656cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 657 $(NOSTDINC_FLAGS) 658c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 659 660######################################################################### 661# U-Boot objects....order is important (i.e. start must be first) 662 663HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 664 665libs-y += lib/ 666libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 667libs-$(CONFIG_OF_EMBED) += dts/ 668libs-y += fs/ 669libs-y += net/ 670libs-y += disk/ 671libs-y += drivers/ 672libs-y += drivers/dma/ 673libs-y += drivers/gpio/ 674libs-y += drivers/i2c/ 675libs-y += drivers/mtd/ 676libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/ 677libs-y += drivers/mtd/onenand/ 678libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/ 679libs-y += drivers/mtd/spi/ 680libs-y += drivers/net/ 681libs-y += drivers/net/phy/ 682libs-y += drivers/pci/ 683libs-y += drivers/power/ \ 684 drivers/power/domain/ \ 685 drivers/power/fuel_gauge/ \ 686 drivers/power/mfd/ \ 687 drivers/power/pmic/ \ 688 drivers/power/battery/ \ 689 drivers/power/regulator/ 690libs-y += drivers/spi/ 691libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 692libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 693libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 694libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/ 695libs-y += drivers/serial/ 696libs-y += drivers/usb/dwc3/ 697libs-y += drivers/usb/common/ 698libs-y += drivers/usb/emul/ 699libs-y += drivers/usb/eth/ 700libs-y += drivers/usb/gadget/ 701libs-y += drivers/usb/gadget/udc/ 702libs-y += drivers/usb/host/ 703libs-y += drivers/usb/musb/ 704libs-y += drivers/usb/musb-new/ 705libs-y += drivers/usb/phy/ 706libs-y += drivers/usb/ulpi/ 707libs-y += cmd/ 708libs-y += common/ 709libs-y += env/ 710libs-$(CONFIG_API) += api/ 711libs-$(CONFIG_HAS_POST) += post/ 712libs-y += test/ 713libs-y += test/dm/ 714libs-$(CONFIG_UT_ENV) += test/env/ 715libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 716 717libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 718 719libs-y := $(sort $(libs-y)) 720 721u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 722 723u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 724 725libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 726 727u-boot-init := $(head-y) 728u-boot-main := $(libs-y) 729 730 731# Add GCC lib 732ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 733PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 734else 735PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 736endif 737PLATFORM_LIBS += $(PLATFORM_LIBGCC) 738 739ifdef CONFIG_CC_COVERAGE 740KBUILD_CFLAGS += --coverage 741PLATFORM_LIBGCC += -lgcov 742endif 743 744export PLATFORM_LIBS 745export PLATFORM_LIBGCC 746 747# Special flags for CPP when processing the linker script. 748# Pass the version down so we can handle backwards compatibility 749# on the fly. 750LDPPFLAGS += \ 751 -include $(srctree)/include/u-boot/u-boot.lds.h \ 752 -DCPUDIR=$(CPUDIR) \ 753 $(shell $(LD) --version | \ 754 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 755 756######################################################################### 757######################################################################### 758 759ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 760BOARD_SIZE_CHECK = \ 761 @actual=`wc -c $@ | awk '{print $$1}'`; \ 762 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \ 763 if test $$actual -gt $$limit; then \ 764 echo "$@ exceeds file size limit:" >&2 ; \ 765 echo " limit: $$limit bytes" >&2 ; \ 766 echo " actual: $$actual bytes" >&2 ; \ 767 echo " excess: $$((actual - limit)) bytes" >&2; \ 768 exit 1; \ 769 fi 770else 771BOARD_SIZE_CHECK = 772endif 773 774# Statically apply RELA-style relocations (currently arm64 only) 775# This is useful for arm64 where static relocation needs to be performed on 776# the raw binary, but certain simulators only accept an ELF file (but don't 777# do the relocation). 778ifneq ($(CONFIG_STATIC_RELA),) 779# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 780DO_STATIC_RELA = \ 781 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 782 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 783 tools/relocate-rela $(2) $(3) $$start $$end 784else 785DO_STATIC_RELA = 786endif 787 788# Always append ALL so that arch config.mk's can add custom ones 789ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 790 791ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 792ifeq ($(CONFIG_SPL_FSL_PBL),y) 793ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 794else 795ifneq ($(CONFIG_SECURE_BOOT), y) 796# For Secure Boot The Image needs to be signed and Header must also 797# be included. So The image has to be built explicitly 798ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 799endif 800endif 801ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin 802ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy) 803ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 804else 805ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy) 806ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 807else 808ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 809endif 810endif 811ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 812ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb 813ifeq ($(CONFIG_SPL_FRAMEWORK),y) 814ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 815endif 816ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 817ifneq ($(CONFIG_SPL_TARGET),) 818ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 819endif 820ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf 821ALL-$(CONFIG_EFI_APP) += u-boot-app.efi 822ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi 823 824ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),) 825ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom 826endif 827 828# Build a combined spl + u-boot image for sunxi 829ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) 830ALL-y += u-boot-sunxi-with-spl.bin 831endif 832 833# enable combined SPL/u-boot/dtb rules for tegra 834ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) 835ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin 836ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin 837endif 838 839# Add optional build target if defined in board/cpu/soc headers 840ifneq ($(CONFIG_BUILD_TARGET),) 841ALL-y += $(CONFIG_BUILD_TARGET:"%"=%) 842endif 843 844ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 845ALL-y += init_sp_bss_offset_check 846endif 847 848LDFLAGS_u-boot += $(LDFLAGS_FINAL) 849 850# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 851LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 852 853ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 854LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 855endif 856 857# Normally we fill empty space with 0xff 858quiet_cmd_objcopy = OBJCOPY $@ 859cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 860 $(OBJCOPYFLAGS_$(@F)) $< $@ 861 862# Provide a version which does not do this, for use by EFI 863quiet_cmd_zobjcopy = OBJCOPY $@ 864cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 865 866quiet_cmd_efipayload = OBJCOPY $@ 867cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 868 869MKIMAGEOUTPUT ?= /dev/null 870 871quiet_cmd_mkimage = MKIMAGE $@ 872cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 873 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 874 875quiet_cmd_mkfitimage = MKIMAGE $@ 876cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ \ 877 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 878 879quiet_cmd_cat = CAT $@ 880cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 881 882append = cat $(filter-out $< $(PHONY), $^) >> $@ 883 884quiet_cmd_pad_cat = CAT $@ 885cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 886 887cfg: u-boot.cfg 888 889quiet_cmd_cfgcheck = CFGCHK $2 890cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 891 $(srctree)/scripts/config_whitelist.txt $(srctree) 892 893all: $(ALL-y) cfg 894ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y) 895 @echo "===================== WARNING ======================" 896 @echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove" 897 @echo "(possibly in a subsequent patch in your series)" 898 @echo "before sending patches to the mailing list." 899 @echo "====================================================" 900endif 901 @# Check that this build does not use CONFIG options that we do not 902 @# know about unless they are in Kconfig. All the existing CONFIG 903 @# options are whitelisted, so new ones should not be added. 904 $(call cmd,cfgcheck,u-boot.cfg) 905 906PHONY += dtbs 907dtbs: dts/dt.dtb 908 @: 909dts/dt.dtb: u-boot 910 $(Q)$(MAKE) $(build)=dts dtbs 911 912quiet_cmd_copy = COPY $@ 913 cmd_copy = cp $< $@ 914 915ifeq ($(CONFIG_MULTI_DTB_FIT),y) 916 917fit-dtb.blob: dts/dt.dtb FORCE 918 $(call if_changed,mkimage) 919 920MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 921 -a 0 -e 0 -E \ 922 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 923 924u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob 925 $(call if_changed,cat) 926 927u-boot.bin: u-boot-fit-dtb.bin FORCE 928 $(call if_changed,copy) 929else ifeq ($(CONFIG_OF_SEPARATE),y) 930u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 931 $(call if_changed,cat) 932 933u-boot.bin: u-boot-dtb.bin FORCE 934 $(call if_changed,copy) 935else 936u-boot.bin: u-boot-nodtb.bin FORCE 937 $(call if_changed,copy) 938endif 939 940%.imx: %.bin 941 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 942 943%.vyb: %.imx 944 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 945 946quiet_cmd_copy = COPY $@ 947 cmd_copy = cp $< $@ 948 949u-boot.dtb: dts/dt.dtb 950 $(call cmd,copy) 951 952OBJCOPYFLAGS_u-boot.hex := -O ihex 953 954OBJCOPYFLAGS_u-boot.srec := -O srec 955 956u-boot.hex u-boot.srec: u-boot FORCE 957 $(call if_changed,objcopy) 958 959OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 960 961u-boot-elf.srec: u-boot.elf FORCE 962 $(call if_changed,objcopy) 963 964OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 965 966spl/u-boot-spl.srec: spl/u-boot-spl FORCE 967 $(call if_changed,objcopy) 968 969OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 970 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) 971 972binary_size_check: u-boot-nodtb.bin FORCE 973 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 974 map_size=$(shell cat u-boot.map | \ 975 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 976 | sed 's/0X//g' \ 977 | bc); \ 978 if [ "" != "$$map_size" ]; then \ 979 if test $$map_size -ne $$file_size; then \ 980 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 981 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 982 exit 1; \ 983 fi \ 984 fi 985 986ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),) 987ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 988subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 989else 990subtract_sys_malloc_f_len = true 991endif 992# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 993# so low that the DTB could probably use 90%+ of the available space, for 994# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 995# safe for now and tweak this later if space becomes tight. 996# A rejected alternative would be to check that some absolute minimum stack 997# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 998# deliberately build-specific, to take account of build-to-build stack usage 999# differences due to different feature sets, there is no common absolute value 1000# to check against. 1001init_sp_bss_offset_check: u-boot.dtb FORCE 1002 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1003 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1004 $(subtract_sys_malloc_f_len) ; \ 1005 quarter_space=$$(($${space} / 4)) ; \ 1006 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1007 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1008 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1009 exit 1 ; \ 1010 fi 1011endif 1012 1013u-boot-nodtb.bin: u-boot FORCE 1014 $(call if_changed,objcopy) 1015 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1016 $(BOARD_SIZE_CHECK) 1017 1018u-boot.ldr: u-boot 1019 $(CREATE_LDR_ENV) 1020 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1021 $(BOARD_SIZE_CHECK) 1022 1023# binman 1024# --------------------------------------------------------------------------- 1025quiet_cmd_binman = BINMAN $@ 1026cmd_binman = $(srctree)/tools/binman/binman -d u-boot.dtb -O . \ 1027 -I . -I $(srctree)/board/$(BOARDDIR) $< 1028 1029OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1030 1031OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1032 1033u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1034 $(call if_changed,objcopy) 1035 1036# 1037# U-Boot entry point, needed for booting of full-blown U-Boot 1038# from the SPL U-Boot version. 1039# 1040ifndef CONFIG_SYS_UBOOT_START 1041CONFIG_SYS_UBOOT_START := 0 1042endif 1043 1044# Create a file containing the configuration options the image was built with 1045quiet_cmd_cpp_cfg = CFG $@ 1046cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \ 1047 -DDO_DEPS_ONLY -D__ASSEMBLY__ -x assembler-with-cpp -P -dM -E -o $@ $< 1048 1049# Boards with more complex image requirments can provide an .its source file 1050# or a generator script 1051ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1052U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1053else 1054ifneq ($(CONFIG_SPL_FIT_GENERATOR),"") 1055U_BOOT_ITS := u-boot.its 1056$(U_BOOT_ITS): FORCE 1057 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1058 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1059endif 1060endif 1061 1062ifdef CONFIG_SPL_LOAD_FIT 1063MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1064 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1065 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1066 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) 1067else 1068MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1069 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1070 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1071MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1072 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1073 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1074u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1075CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log 1076endif 1077 1078MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1079 1080MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1081 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1082 1083MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \ 1084 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1085 $(if $(KEYDIR),-k $(KEYDIR)) 1086 1087MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1088 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1089 1090u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1091 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE 1092 $(call if_changed,mkimage) 1093 1094u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE 1095 $(call if_changed,mkfitimage) 1096 $(BOARD_SIZE_CHECK) 1097 1098u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1099 $(call if_changed,mkimage) 1100 1101u-boot.sha1: u-boot.bin 1102 tools/ubsha1 u-boot.bin 1103 1104u-boot.dis: u-boot 1105 $(OBJDUMP) -d $< > $@ 1106 1107ifdef CONFIG_TPL 1108SPL_PAYLOAD := tpl/u-boot-with-tpl.bin 1109else 1110SPL_PAYLOAD := u-boot.bin 1111endif 1112 1113OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1114 --pad-to=$(CONFIG_SPL_PAD_TO) 1115u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE 1116 $(call if_changed,pad_cat) 1117 1118MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1119 1120lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1121 $(call if_changed,mkimage) 1122 1123OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1124 1125lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1126 $(call if_changed,objcopy) 1127 1128OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1129 1130lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1131 $(call if_changed,objcopy) 1132 1133lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1134 $(call if_changed,cat) 1135 1136CLEAN_FILES += lpc32xx-* 1137 1138OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1139 --pad-to=$(CONFIG_TPL_PAD_TO) 1140tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1141 $(call if_changed,pad_cat) 1142 1143SPL: spl/u-boot-spl.bin FORCE 1144 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1145 1146u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1147 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1148 1149MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1150 1151u-boot.ubl: u-boot-with-spl.bin FORCE 1152 $(call if_changed,mkimage) 1153 1154MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1155 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1156 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1157spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1158 $(call if_changed,mkimage) 1159 1160OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1161u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1162 $(call if_changed,pad_cat) 1163 1164u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1165 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1166u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1167 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1168 1169# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1170# Both images are created using mkimage (crc etc), so that the ROM 1171# bootloader can check its integrity. Padding needs to be done to the 1172# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1173# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1174# The resulting image containing both U-Boot images is called u-boot.spr 1175MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1176 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1177spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1178 $(call if_changed,mkimage) 1179 1180OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1181 --gap-fill=0xff 1182u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1183 $(call if_changed,pad_cat) 1184 1185ifneq ($(CONFIG_ARCH_SOCFPGA),) 1186quiet_cmd_socboot = SOCBOOT $@ 1187cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1188 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1189 u-boot.img > $@ || rm -f $@ 1190u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1191 $(call if_changed,socboot) 1192endif 1193 1194# x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including 1195# reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in 1196# the middle. This is handled by binman based on an image description in the 1197# board's device tree. 1198ifneq ($(CONFIG_X86_RESET_VECTOR),) 1199rom: u-boot.rom FORCE 1200 1201refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE 1202 $(call if_changed,copy) 1203 1204quiet_cmd_ldr = LD $@ 1205cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1206 $(filter-out FORCE,$^) -o $@ 1207 1208u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \ 1209 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1210 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE 1211 $(call if_changed,binman) 1212 1213OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec 1214u-boot-x86-16bit.bin: u-boot FORCE 1215 $(call if_changed,objcopy) 1216endif 1217 1218ifneq ($(CONFIG_ARCH_SUNXI),) 1219ifeq ($(CONFIG_ARM64),) 1220u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE 1221 $(call if_changed,binman) 1222else 1223u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1224 $(call if_changed,cat) 1225endif 1226endif 1227 1228ifneq ($(CONFIG_TEGRA),) 1229ifneq ($(CONFIG_BINMAN),) 1230u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin: \ 1231 spl/u-boot-spl u-boot.bin FORCE 1232 $(call if_changed,binman) 1233else 1234OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1235u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE 1236 $(call if_changed,pad_cat) 1237 1238OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE) 1239u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE 1240 $(call if_changed,pad_cat) 1241 1242u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE 1243 $(call if_changed,copy) 1244endif # binman 1245endif 1246 1247OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1248u-boot-app.efi: u-boot FORCE 1249 $(call if_changed,zobjcopy) 1250 1251u-boot.bin.o: u-boot.bin FORCE 1252 $(call if_changed,efipayload) 1253 1254u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1255 $(call if_changed_dep,cpp_lds) 1256 1257# Rule to link the EFI payload which contains a stub and a U-Boot binary 1258quiet_cmd_u-boot_payload ?= LD $@ 1259 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1260 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1261 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1262 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1263 1264u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1265 $(call if_changed,u-boot_payload) 1266 1267OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1268u-boot-payload.efi: u-boot-payload FORCE 1269 $(call if_changed,zobjcopy) 1270 1271u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1272 $(call if_changed,cat) 1273 1274#Add a target to create boot binary having SPL binary in PBI format 1275#concatenated with u-boot binary. It is need by PowerPC SoC having 1276#internal SRAM <= 512KB. 1277MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1278 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1279 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1280 1281spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1282 $(call if_changed,mkimage) 1283 1284ifeq ($(ARCH),arm) 1285UBOOT_BINLOAD := u-boot.img 1286else 1287UBOOT_BINLOAD := u-boot.bin 1288endif 1289 1290OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1291 --gap-fill=0xff 1292 1293u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1294 $(call if_changed,pad_cat) 1295 1296# PPC4xx needs the SPL at the end of the image, since the reset vector 1297# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1298# and need to introduce a new build target with the full blown U-Boot 1299# at the start padded up to the start of the SPL image. And then concat 1300# the SPL image to the end. 1301 1302OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1303 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1304u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1305 $(call if_changed,pad_cat) 1306 1307# Create a new ELF from a raw binary file. 1308ifndef PLATFORM_ELFENTRY 1309 PLATFORM_ELFENTRY = "_start" 1310endif 1311quiet_cmd_u-boot-elf ?= LD $@ 1312 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1313 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1314 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1315u-boot.elf: u-boot.bin 1316 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1317 $(call if_changed,u-boot-elf) 1318 1319ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1320 1321# Rule to link u-boot 1322# May be overridden by arch/$(ARCH)/config.mk 1323quiet_cmd_u-boot__ ?= LD $@ 1324 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1325 -T u-boot.lds $(u-boot-init) \ 1326 --start-group $(u-boot-main) --end-group \ 1327 $(PLATFORM_LIBS) -Map u-boot.map; \ 1328 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1329 1330quiet_cmd_smap = GEN common/system_map.o 1331cmd_smap = \ 1332 smap=`$(call SYSTEM_MAP,u-boot) | \ 1333 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1334 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1335 -c $(srctree)/common/system_map.c -o common/system_map.o 1336 1337u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1338 +$(call if_changed,u-boot__) 1339ifeq ($(CONFIG_KALLSYMS),y) 1340 $(call cmd,smap) 1341 $(call cmd,u-boot__) common/system_map.o 1342endif 1343 1344ifeq ($(CONFIG_RISCV),y) 1345 @tools/prelink-riscv $@ 0 1346endif 1347 1348quiet_cmd_sym ?= SYM $@ 1349 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1350u-boot.sym: u-boot FORCE 1351 $(call if_changed,sym) 1352 1353# The actual objects are generated when descending, 1354# make sure no implicit rule kicks in 1355$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1356 1357# Handle descending into subdirectories listed in $(vmlinux-dirs) 1358# Preset locale variables to speed up the build process. Limit locale 1359# tweaks to this spot to avoid wrong language settings when running 1360# make menuconfig etc. 1361# Error messages still appears in the original language 1362 1363PHONY += $(u-boot-dirs) 1364$(u-boot-dirs): prepare scripts 1365 $(Q)$(MAKE) $(build)=$@ 1366 1367tools: prepare 1368# The "tools" are needed early 1369$(filter-out tools, $(u-boot-dirs)): tools 1370# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1371# is "yes"), so compile examples after U-Boot is compiled. 1372examples: $(filter-out examples, $(u-boot-dirs)) 1373 1374define filechk_uboot.release 1375 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1376endef 1377 1378# Store (new) UBOOTRELEASE string in include/config/uboot.release 1379include/config/uboot.release: include/config/auto.conf FORCE 1380 $(call filechk,uboot.release) 1381 1382 1383# Things we need to do before we recursively start building the kernel 1384# or the modules are listed in "prepare". 1385# A multi level approach is used. prepareN is processed before prepareN-1. 1386# archprepare is used in arch Makefiles and when processed asm symlink, 1387# version.h and scripts_basic is processed / created. 1388 1389# Listed in dependency order 1390PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1391 1392# prepare3 is used to check if we are building in a separate output directory, 1393# and if so do: 1394# 1) Check that make has not been executed in the kernel src $(srctree) 1395prepare3: include/config/uboot.release 1396ifneq ($(KBUILD_SRC),) 1397 @$(kecho) ' Using $(srctree) as source for U-Boot' 1398 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1399 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1400 echo >&2 " in the '$(srctree)' directory.";\ 1401 /bin/false; \ 1402 fi; 1403endif 1404 1405# prepare2 creates a makefile if using a separate output directory 1406prepare2: prepare3 outputmakefile 1407 1408prepare1: prepare2 $(version_h) $(timestamp_h) \ 1409 include/config/auto.conf 1410ifeq ($(wildcard $(LDSCRIPT)),) 1411 @echo >&2 " Could not find linker script." 1412 @/bin/false 1413endif 1414 1415ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1416prepare1: $(defaultenv_h) 1417endif 1418 1419archprepare: prepare1 scripts_basic 1420 1421prepare0: archprepare FORCE 1422 $(Q)$(MAKE) $(build)=. 1423 1424# All the preparing.. 1425prepare: prepare0 1426 1427# Generate some files 1428# --------------------------------------------------------------------------- 1429 1430define filechk_version.h 1431 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1432 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1433 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1434 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1435endef 1436 1437# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1438# The BSD date on the other hand behaves different and would produce errors 1439# with the misused '-d' switch. Respect that and search a working date with 1440# well known pre- and suffixes for the GNU variant of date. 1441define filechk_timestamp.h 1442 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1443 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1444 DATE=""; \ 1445 for date in gdate date.gnu date; do \ 1446 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1447 done; \ 1448 if test -n "$${DATE}"; then \ 1449 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1450 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1451 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1452 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1453 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1454 else \ 1455 return 42; \ 1456 fi; \ 1457 else \ 1458 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1459 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1460 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1461 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1462 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1463 fi) 1464endef 1465 1466define filechk_defaultenv.h 1467 (grep -v '^#' | \ 1468 grep -v '^$$' | \ 1469 tr '\n' '\0' | \ 1470 sed -e 's/\\\x0/\n/' | \ 1471 xxd -i ; echo ", 0x00" ; ) 1472endef 1473 1474$(version_h): include/config/uboot.release FORCE 1475 $(call filechk,version.h) 1476 1477$(timestamp_h): $(srctree)/Makefile FORCE 1478 $(call filechk,timestamp.h) 1479 1480$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1481 $(call filechk,defaultenv.h) 1482 1483# --------------------------------------------------------------------------- 1484quiet_cmd_cpp_lds = LDS $@ 1485cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1486 -D__ASSEMBLY__ -x assembler-with-cpp -P -o $@ $< 1487 1488u-boot.lds: $(LDSCRIPT) prepare FORCE 1489 $(call if_changed_dep,cpp_lds) 1490 1491spl/u-boot-spl.bin: spl/u-boot-spl 1492 @: 1493spl/u-boot-spl: tools prepare \ 1494 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1495 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1496 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1497 1498spl/sunxi-spl.bin: spl/u-boot-spl 1499 @: 1500 1501spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1502 @: 1503 1504spl/u-boot-spl.sfp: spl/u-boot-spl 1505 @: 1506 1507spl/boot.bin: spl/u-boot-spl 1508 @: 1509 1510tpl/u-boot-tpl.bin: tools prepare \ 1511 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1512 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1513 1514TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1515 1516FIND := find 1517FINDFLAGS := -L 1518 1519tags ctags: 1520 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1521 -name '*.[chS]' -print` 1522 ln -s ctags tags 1523 1524etags: 1525 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1526 -name '*.[chS]' -print` 1527cscope: 1528 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1529 cscope.files 1530 cscope -b -q -k 1531 1532SYSTEM_MAP = \ 1533 $(NM) $1 | \ 1534 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1535 LC_ALL=C sort 1536System.map: u-boot 1537 @$(call SYSTEM_MAP,$<) > $@ 1538 1539######################################################################### 1540 1541# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1542# R_AARCH64_RELATIVE (64-bit). 1543checkarmreloc: u-boot 1544 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1545 grep R_A | sort -u`"; \ 1546 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1547 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1548 echo "$< contains unexpected relocations: $$RELOC"; \ 1549 false; \ 1550 fi 1551 1552envtools: scripts_basic $(version_h) $(timestamp_h) 1553 $(Q)$(MAKE) $(build)=tools/env 1554 1555tools-only: scripts_basic $(version_h) $(timestamp_h) 1556 $(Q)$(MAKE) $(build)=tools 1557 1558tools-all: export HOST_TOOLS_ALL=y 1559tools-all: envtools tools ; 1560 1561cross_tools: export CROSS_BUILD_TOOLS=y 1562cross_tools: tools ; 1563 1564.PHONY : CHANGELOG 1565CHANGELOG: 1566 git log --no-merges U-Boot-1_1_5.. | \ 1567 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1568 1569######################################################################### 1570 1571### 1572# Cleaning is done on three levels. 1573# make clean Delete most generated files 1574# Leave enough to build external modules 1575# make mrproper Delete the current configuration, and all generated files 1576# make distclean Remove editor backup files, patch leftover files and the like 1577 1578# Directories & files removed with 'make clean' 1579CLEAN_DIRS += $(MODVERDIR) \ 1580 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1581 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1582 1583CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 1584 boot* u-boot* MLO* SPL System.map fit-dtb.blob 1585 1586# Directories & files removed with 'make mrproper' 1587MRPROPER_DIRS += include/config include/generated spl tpl \ 1588 .tmp_objdiff 1589MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1590 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS 1591 1592# clean - Delete most, but leave enough to build external modules 1593# 1594clean: rm-dirs := $(CLEAN_DIRS) 1595clean: rm-files := $(CLEAN_FILES) 1596 1597clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 1598 1599clean-dirs := $(addprefix _clean_, $(clean-dirs) doc/DocBook) 1600 1601PHONY += $(clean-dirs) clean archclean 1602$(clean-dirs): 1603 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1604 1605# TODO: Do not use *.cfgtmp 1606clean: $(clean-dirs) 1607 $(call cmd,rmdirs) 1608 $(call cmd,rmfiles) 1609 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1610 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1611 -o -name '*.ko.*' -o -name '*.su' -o -name '*.cfgtmp' \ 1612 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1613 -o -name '*.symtypes' -o -name 'modules.order' \ 1614 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1615 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 1616 -o -name '*.gcno' \) -type f -print | xargs rm -f 1617 1618# mrproper - Delete all generated files, including .config 1619# 1620mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1621mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1622mrproper-dirs := $(addprefix _mrproper_,scripts) 1623 1624PHONY += $(mrproper-dirs) mrproper archmrproper 1625$(mrproper-dirs): 1626 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1627 1628mrproper: clean $(mrproper-dirs) 1629 $(call cmd,rmdirs) 1630 $(call cmd,rmfiles) 1631 @rm -f arch/*/include/asm/arch 1632 1633# distclean 1634# 1635PHONY += distclean 1636 1637distclean: mrproper 1638 @find $(srctree) $(RCS_FIND_IGNORE) \ 1639 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1640 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1641 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 1642 -o -name '*.pyc' \) \ 1643 -type f -print | xargs rm -f 1644 @rm -f boards.cfg 1645 1646backup: 1647 F=`basename $(srctree)` ; cd .. ; \ 1648 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 1649 1650help: 1651 @echo 'Cleaning targets:' 1652 @echo ' clean - Remove most generated files but keep the config' 1653 @echo ' mrproper - Remove all generated files + config + various backup files' 1654 @echo ' distclean - mrproper + remove editor backup and patch files' 1655 @echo '' 1656 @echo 'Configuration targets:' 1657 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1658 @echo '' 1659 @echo 'Other generic targets:' 1660 @echo ' all - Build all necessary images depending on configuration' 1661 @echo ' tests - Build U-Boot for sandbox and run tests' 1662 @echo '* u-boot - Build the bare u-boot' 1663 @echo ' dir/ - Build all files in dir and below' 1664 @echo ' dir/file.[oisS] - Build specified target only' 1665 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1666 @echo ' (requires a recent binutils and recent build (System.map))' 1667 @echo ' tags/ctags - Generate ctags file for editors' 1668 @echo ' etags - Generate etags file for editors' 1669 @echo ' cscope - Generate cscope index' 1670 @echo ' ubootrelease - Output the release version string (use with make -s)' 1671 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 1672 @echo " cfg - Don't build, just create the .cfg files" 1673 @echo " envtools - Build only the target-side environment tools" 1674 @echo '' 1675 @echo 'Static analysers' 1676 @echo ' checkstack - Generate a list of stack hogs' 1677 @echo ' coccicheck - Execute static code analysis with Coccinelle' 1678 @echo '' 1679 @echo 'Documentation targets:' 1680 @$(MAKE) -f $(srctree)/doc/DocBook/Makefile dochelp 1681 @echo '' 1682 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1683 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1684 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1685 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1686 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1687 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1688 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1689 @echo ' 1: warnings which may be relevant and do not occur too often' 1690 @echo ' 2: warnings which occur quite often but may still be relevant' 1691 @echo ' 3: more obscure warnings, can most likely be ignored' 1692 @echo ' Multiple levels can be combined with W=12 or W=123' 1693 @echo '' 1694 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1695 @echo 'For further info see the ./README file' 1696 1697tests: 1698 $(srctree)/test/run 1699 1700# Documentation targets 1701# --------------------------------------------------------------------------- 1702%docs: scripts_basic FORCE 1703 $(Q)$(MAKE) $(build)=scripts build_docproc 1704 $(Q)$(MAKE) $(build)=doc/DocBook $@ 1705 1706endif #ifeq ($(config-targets),1) 1707endif #ifeq ($(mixed-targets),1) 1708 1709PHONY += checkstack ubootrelease ubootversion 1710 1711checkstack: 1712 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 1713 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 1714 1715ubootrelease: 1716 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1717 1718ubootversion: 1719 @echo $(UBOOTVERSION) 1720 1721# Single targets 1722# --------------------------------------------------------------------------- 1723# Single targets are compatible with: 1724# - build with mixed source and output 1725# - build with separate output dir 'make O=...' 1726# - external modules 1727# 1728# target-dir => where to store outputfile 1729# build-dir => directory in kernel source tree to use 1730 1731ifeq ($(KBUILD_EXTMOD),) 1732 build-dir = $(patsubst %/,%,$(dir $@)) 1733 target-dir = $(dir $@) 1734else 1735 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1736 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1737 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1738endif 1739 1740%.s: %.c prepare scripts FORCE 1741 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1742%.i: %.c prepare scripts FORCE 1743 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1744%.o: %.c prepare scripts FORCE 1745 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1746%.lst: %.c prepare scripts FORCE 1747 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1748%.s: %.S prepare scripts FORCE 1749 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1750%.o: %.S prepare scripts FORCE 1751 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1752%.symtypes: %.c prepare scripts FORCE 1753 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1754 1755# Modules 1756/: prepare scripts FORCE 1757 $(cmd_crmodverdir) 1758 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1759 $(build)=$(build-dir) 1760%/: prepare scripts FORCE 1761 $(cmd_crmodverdir) 1762 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1763 $(build)=$(build-dir) 1764%.ko: prepare scripts FORCE 1765 $(cmd_crmodverdir) 1766 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1767 $(build)=$(build-dir) $(@:.ko=.o) 1768 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1769 1770# Consistency checks 1771# --------------------------------------------------------------------------- 1772 1773PHONY += coccicheck 1774 1775coccicheck: 1776 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1777 1778# FIXME Should go into a make.lib or something 1779# =========================================================================== 1780 1781quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1782 cmd_rmdirs = rm -rf $(rm-dirs) 1783 1784quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1785 cmd_rmfiles = rm -f $(rm-files) 1786 1787# read all saved command lines 1788 1789targets := $(wildcard $(sort $(targets))) 1790cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1791 1792ifneq ($(cmd_files),) 1793 $(cmd_files): ; # Do not try to update included dependency files 1794 include $(cmd_files) 1795endif 1796 1797endif # skip-makefile 1798 1799PHONY += FORCE 1800FORCE: 1801 1802# Declare the contents of the .PHONY variable as phony. We keep that 1803# information in a variable so we can use it in if_changed and friends. 1804.PHONY: $(PHONY) 1805