1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2021 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=$(CURDIR) 19 20# Determine host architecture 21include include/host_arch.h 22MK_ARCH="${shell uname -m}" 23unexport HOST_ARCH 24ifeq ("x86_64", $(MK_ARCH)) 25 export HOST_ARCH=$(HOST_ARCH_X86_64) 26else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686")) 27 export HOST_ARCH=$(HOST_ARCH_X86) 28else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l")) 29 export HOST_ARCH=$(HOST_ARCH_AARCH64) 30else ifeq ("armv7l", $(MK_ARCH)) 31 export HOST_ARCH=$(HOST_ARCH_ARM) 32else ifeq ("riscv32", $(MK_ARCH)) 33 export HOST_ARCH=$(HOST_ARCH_RISCV32) 34else ifeq ("riscv64", $(MK_ARCH)) 35 export HOST_ARCH=$(HOST_ARCH_RISCV64) 36endif 37undefine MK_ARCH 38 39# Avoid funny character set dependencies 40unexport LC_ALL 41LC_COLLATE=C 42LC_NUMERIC=C 43export LC_COLLATE LC_NUMERIC 44 45# Avoid interference with shell env settings 46unexport GREP_OPTIONS 47 48# We are using a recursive build, so we need to do a little thinking 49# to get the ordering right. 50# 51# Most importantly: sub-Makefiles should only ever modify files in 52# their own directory. If in some directory we have a dependency on 53# a file in another dir (which doesn't happen often, but it's often 54# unavoidable when linking the built-in.o targets which finally 55# turn into vmlinux), we will call a sub make in that other dir, and 56# after that we are sure that everything which is in that other dir 57# is now up to date. 58# 59# The only cases where we need to modify files which have global 60# effects are thus separated out and done before the recursive 61# descending is started. They are now explicitly listed as the 62# prepare rule. 63 64# Beautify output 65# --------------------------------------------------------------------------- 66# 67# Normally, we echo the whole command before executing it. By making 68# that echo $($(quiet)$(cmd)), we now have the possibility to set 69# $(quiet) to choose other forms of output instead, e.g. 70# 71# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 72# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 73# 74# If $(quiet) is empty, the whole command will be printed. 75# If it is set to "quiet_", only the short version will be printed. 76# If it is set to "silent_", nothing will be printed at all, since 77# the variable $(silent_cmd_cc_o_c) doesn't exist. 78# 79# A simple variant is to prefix commands with $(Q) - that's useful 80# for commands that shall be hidden in non-verbose mode. 81# 82# $(Q)ln $@ :< 83# 84# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 85# If KBUILD_VERBOSE equals 1 then the above command is displayed. 86# 87# To put more focus on warnings, be less verbose as default 88# Use 'make V=1' to see the full commands 89 90ifeq ("$(origin V)", "command line") 91 KBUILD_VERBOSE = $(V) 92endif 93ifndef KBUILD_VERBOSE 94 KBUILD_VERBOSE = 0 95endif 96 97ifeq ($(KBUILD_VERBOSE),1) 98 quiet = 99 Q = 100else 101 quiet=quiet_ 102 Q = @ 103endif 104 105# If the user is running make -s (silent mode), suppress echoing of 106# commands 107 108ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 109ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 110 quiet=silent_ 111endif 112else # make-3.8x 113ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 114 quiet=silent_ 115endif 116endif 117 118export quiet Q KBUILD_VERBOSE 119 120# kbuild supports saving output files in a separate directory. 121# To locate output files in a separate directory two syntaxes are supported. 122# In both cases the working directory must be the root of the kernel src. 123# 1) O= 124# Use "make O=dir/to/store/output/files/" 125# 126# 2) Set KBUILD_OUTPUT 127# Set the environment variable KBUILD_OUTPUT to point to the directory 128# where the output files shall be placed. 129# export KBUILD_OUTPUT=dir/to/store/output/files/ 130# make 131# 132# The O= assignment takes precedence over the KBUILD_OUTPUT environment 133# variable. 134 135# KBUILD_SRC is set on invocation of make in OBJ directory 136# KBUILD_SRC is not intended to be used by the regular user (for now) 137ifeq ($(KBUILD_SRC),) 138 139# OK, Make called in directory where kernel src resides 140# Do we want to locate output files in a separate directory? 141ifeq ("$(origin O)", "command line") 142 KBUILD_OUTPUT := $(O) 143endif 144 145# That's our default target when none is given on the command line 146PHONY := _all 147_all: 148 149# Cancel implicit rules on top Makefile 150$(CURDIR)/Makefile Makefile: ; 151 152ifneq ($(KBUILD_OUTPUT),) 153# Invoke a second make in the output directory, passing relevant variables 154# check that the output directory actually exists 155saved-output := $(KBUILD_OUTPUT) 156KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 157 && /bin/pwd) 158$(if $(KBUILD_OUTPUT),, \ 159 $(error failed to create output directory "$(saved-output)")) 160 161PHONY += $(MAKECMDGOALS) sub-make 162 163$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 164 @: 165 166sub-make: FORCE 167 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 168 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 169 170# Leave processing to above invocation of make 171skip-makefile := 1 172endif # ifneq ($(KBUILD_OUTPUT),) 173endif # ifeq ($(KBUILD_SRC),) 174 175# We process the rest of the Makefile if this is the final invocation of make 176ifeq ($(skip-makefile),) 177 178# Do not print "Entering directory ...", 179# but we want to display it when entering to the output directory 180# so that IDEs/editors are able to understand relative filenames. 181MAKEFLAGS += --no-print-directory 182 183# Call a source code checker (by default, "sparse") as part of the 184# C compilation. 185# 186# Use 'make C=1' to enable checking of only re-compiled files. 187# Use 'make C=2' to enable checking of *all* source files, regardless 188# of whether they are re-compiled or not. 189# 190# See the file "doc/sparse.txt" for more details, including 191# where to get the "sparse" utility. 192 193ifeq ("$(origin C)", "command line") 194 KBUILD_CHECKSRC = $(C) 195endif 196ifndef KBUILD_CHECKSRC 197 KBUILD_CHECKSRC = 0 198endif 199 200# Use make M=dir to specify directory of external module to build 201# Old syntax make ... SUBDIRS=$PWD is still supported 202# Setting the environment variable KBUILD_EXTMOD take precedence 203ifdef SUBDIRS 204 KBUILD_EXTMOD ?= $(SUBDIRS) 205endif 206 207ifeq ("$(origin M)", "command line") 208 KBUILD_EXTMOD := $(M) 209endif 210 211# If building an external module we do not care about the all: rule 212# but instead _all depend on modules 213PHONY += all 214ifeq ($(KBUILD_EXTMOD),) 215_all: all 216else 217_all: modules 218endif 219 220ifeq ($(KBUILD_SRC),) 221 # building in the source tree 222 srctree := . 223else 224 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 225 # building in a subdirectory of the source tree 226 srctree := .. 227 else 228 srctree := $(KBUILD_SRC) 229 endif 230endif 231objtree := . 232src := $(srctree) 233obj := $(objtree) 234 235VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 236 237export srctree objtree VPATH 238 239# Make sure CDPATH settings don't interfere 240unexport CDPATH 241 242######################################################################### 243 244HOSTARCH := $(shell uname -m | \ 245 sed -e s/i.86/x86/ \ 246 -e s/sun4u/sparc64/ \ 247 -e s/arm.*/arm/ \ 248 -e s/sa110/arm/ \ 249 -e s/ppc64/powerpc/ \ 250 -e s/ppc/powerpc/ \ 251 -e s/macppc/powerpc/\ 252 -e s/sh.*/sh/) 253 254HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 255 sed -e 's/\(cygwin\).*/cygwin/') 256 257export HOSTARCH HOSTOS 258 259######################################################################### 260 261# set default to nothing for native builds 262ifeq ($(HOSTARCH),$(ARCH)) 263CROSS_COMPILE ?= 264endif 265 266KCONFIG_CONFIG ?= .config 267export KCONFIG_CONFIG 268 269# SHELL used by kbuild 270CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 271 else if [ -x /bin/bash ]; then echo /bin/bash; \ 272 else echo sh; fi ; fi) 273 274HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) 275HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) 276HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) 277 278HOSTCC = cc 279HOSTCXX = c++ 280KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 281 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) 282KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) 283KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) 284KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) 285 286# With the move to GCC 6, we have implicitly upgraded our language 287# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 288# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 289# have older compilers as their default, so we make it explicit for 290# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 291CSTD_FLAG := -std=gnu11 292ifeq ($(HOSTOS),linux) 293KBUILD_HOSTCFLAGS += $(CSTD_FLAG) 294endif 295 296ifeq ($(HOSTOS),cygwin) 297KBUILD_HOSTCFLAGS += -ansi 298endif 299 300# Mac OS X / Darwin's C preprocessor is Apple specific. It 301# generates numerous errors and warnings. We want to bypass it 302# and use GNU C's cpp. To do this we pass the -traditional-cpp 303# option to the compiler. Note that the -traditional-cpp flag 304# DOES NOT have the same semantics as GNU C's flag, all it does 305# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 306# 307# Apple's linker is similar, thanks to the new 2 stage linking 308# multiple symbol definitions are treated as errors, hence the 309# -multiply_defined suppress option to turn off this error. 310# 311ifeq ($(HOSTOS),darwin) 312# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 313DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 314DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 315 316os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 317 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 318 319os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \ 320 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 321 322# Snow Leopards build environment has no longer restrictions as described above 323HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 324KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 325KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 326 327# macOS Mojave (10.14.X) 328# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" 329KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") 330endif 331 332# Decide whether to build built-in, modular, or both. 333# Normally, just do built-in. 334 335KBUILD_MODULES := 336KBUILD_BUILTIN := 1 337 338# If we have only "make modules", don't compile built-in objects. 339# When we're building modules with modversions, we need to consider 340# the built-in objects during the descend as well, in order to 341# make sure the checksums are up to date before we record them. 342 343ifeq ($(MAKECMDGOALS),modules) 344 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 345endif 346 347# If we have "make <whatever> modules", compile modules 348# in addition to whatever we do anyway. 349# Just "make" or "make all" shall build modules as well 350 351# U-Boot does not need modules 352#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 353# KBUILD_MODULES := 1 354#endif 355 356#ifeq ($(MAKECMDGOALS),) 357# KBUILD_MODULES := 1 358#endif 359 360# Check ths size of a binary: 361# Args: 362# $1: File to check 363# #2: Size limit in bytes (decimal or 0xhex) 364define size_check 365 actual=$$( wc -c $1 | awk '{print $$1}'); \ 366 limit=$$( printf "%d" $2 ); \ 367 if test $$actual -gt $$limit; then \ 368 echo "$1 exceeds file size limit:" >&2; \ 369 echo " limit: $$(printf %#x $$limit) bytes" >&2; \ 370 echo " actual: $$(printf %#x $$actual) bytes" >&2; \ 371 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\ 372 exit 1; \ 373 fi 374endef 375export size_check 376 377export KBUILD_MODULES KBUILD_BUILTIN 378export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 379 380# We need some generic definitions (do not try to remake the file). 381scripts/Kbuild.include: ; 382include scripts/Kbuild.include 383 384# Make variables (CC, etc...) 385 386AS = $(CROSS_COMPILE)as 387# Always use GNU ld 388ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 389LD = $(CROSS_COMPILE)ld.bfd 390else 391LD = $(CROSS_COMPILE)ld 392endif 393CC = $(CROSS_COMPILE)gcc 394CPP = $(CC) -E 395AR = $(CROSS_COMPILE)ar 396NM = $(CROSS_COMPILE)nm 397LDR = $(CROSS_COMPILE)ldr 398STRIP = $(CROSS_COMPILE)strip 399OBJCOPY = $(CROSS_COMPILE)objcopy 400OBJDUMP = $(CROSS_COMPILE)objdump 401LEX = flex 402YACC = bison 403AWK = awk 404PERL = perl 405PYTHON ?= python 406PYTHON2 = python2 407PYTHON3 = python3 408DTC ?= $(objtree)/scripts/dtc/dtc 409CHECK = sparse 410 411CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 412 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 413 414KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 415 416KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 417 -Wno-format-security \ 418 -fno-builtin -ffreestanding $(CSTD_FLAG) 419KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 420KBUILD_AFLAGS := -D__ASSEMBLY__ 421KBUILD_LDFLAGS := 422 423ifeq ($(cc-name),clang) 424ifneq ($(CROSS_COMPILE),) 425CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 426GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 427CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 428GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 429endif 430ifneq ($(GCC_TOOLCHAIN),) 431CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 432endif 433KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 434KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 435KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 436KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 437endif 438 439# Don't generate position independent code 440KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 441KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 442 443# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 444UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 445UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 446 447export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 448export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 449export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 450export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 451export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 452export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 453 454export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 455export KBUILD_CFLAGS KBUILD_AFLAGS 456 457export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 458 459# When compiling out-of-tree modules, put MODVERDIR in the module 460# tree rather than in the kernel tree. The kernel tree might 461# even be read-only. 462export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 463 464# Files to ignore in find ... statements 465 466export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 467 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 468 -prune -o 469export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 470 --exclude CVS --exclude .pc --exclude .hg --exclude .git 471 472# =========================================================================== 473# Rules shared between *config targets and build targets 474 475# Basic helpers built in scripts/ 476PHONY += scripts_basic 477scripts_basic: 478 $(Q)$(MAKE) $(build)=scripts/basic 479 $(Q)rm -f .tmp_quiet_recordmcount 480 481# To avoid any implicit rule to kick in, define an empty command. 482scripts/basic/%: scripts_basic ; 483 484PHONY += outputmakefile 485# outputmakefile generates a Makefile in the output directory, if using a 486# separate output directory. This allows convenient use of make in the 487# output directory. 488outputmakefile: 489ifneq ($(KBUILD_SRC),) 490 $(Q)ln -fsn $(srctree) source 491 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 492 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 493endif 494 495# To make sure we do not include .config for any of the *config targets 496# catch them early, and hand them over to scripts/kconfig/Makefile 497# It is allowed to specify more targets when calling make, including 498# mixing *config targets and build targets. 499# For example 'make oldconfig all'. 500# Detect when mixed targets is specified, and make a second invocation 501# of make so .config is not included in this case either (for *config). 502 503version_h := include/generated/version_autogenerated.h 504timestamp_h := include/generated/timestamp_autogenerated.h 505defaultenv_h := include/generated/defaultenv_autogenerated.h 506dt_h := include/generated/dt.h 507 508no-dot-config-targets := clean clobber mrproper distclean \ 509 help %docs check% coccicheck \ 510 ubootversion backup tests check qcheck tcheck 511 512config-targets := 0 513mixed-targets := 0 514dot-config := 1 515 516ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 517 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 518 dot-config := 0 519 endif 520endif 521 522ifeq ($(KBUILD_EXTMOD),) 523 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 524 config-targets := 1 525 ifneq ($(words $(MAKECMDGOALS)),1) 526 mixed-targets := 1 527 endif 528 endif 529endif 530 531ifeq ($(mixed-targets),1) 532# =========================================================================== 533# We're called with mixed targets (*config and build targets). 534# Handle them one by one. 535 536PHONY += $(MAKECMDGOALS) __build_one_by_one 537 538$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 539 @: 540 541__build_one_by_one: 542 $(Q)set -e; \ 543 for i in $(MAKECMDGOALS); do \ 544 $(MAKE) -f $(srctree)/Makefile $$i; \ 545 done 546 547else 548ifeq ($(config-targets),1) 549# =========================================================================== 550# *config targets only - make sure prerequisites are updated, and descend 551# in scripts/kconfig to make the *config target 552 553KBUILD_DEFCONFIG := sandbox_defconfig 554export KBUILD_DEFCONFIG KBUILD_KCONFIG 555 556config: scripts_basic outputmakefile FORCE 557 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 558 559%config: scripts_basic outputmakefile FORCE 560 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 561 562else 563# =========================================================================== 564# Build targets only - this includes vmlinux, arch specific targets, clean 565# targets and others. In general all targets except *config targets. 566 567# Additional helpers built in scripts/ 568# Carefully list dependencies so we do not try to build scripts twice 569# in parallel 570PHONY += scripts 571scripts: scripts_basic include/config/auto.conf 572 $(Q)$(MAKE) $(build)=$(@) 573 574ifeq ($(dot-config),1) 575# Read in config 576-include include/config/auto.conf 577 578# Read in dependencies to all Kconfig* files, make sure to run 579# oldconfig if changes are detected. 580-include include/config/auto.conf.cmd 581 582# To avoid any implicit rule to kick in, define an empty command 583$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 584 585# If .config is newer than include/config/auto.conf, someone tinkered 586# with it and forgot to run make oldconfig. 587# if auto.conf.cmd is missing then we are probably in a cleaned tree so 588# we execute the config step to be sure to catch updated Kconfig files 589include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 590 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 591 @# If the following part fails, include/config/auto.conf should be 592 @# deleted so "make silentoldconfig" will be re-run on the next build. 593 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 594 { rm -f include/config/auto.conf; false; } 595 @# include/config.h has been updated after "make silentoldconfig". 596 @# We need to touch include/config/auto.conf so it gets newer 597 @# than include/config.h. 598 @# Otherwise, 'make silentoldconfig' would be invoked twice. 599 $(Q)touch include/config/auto.conf 600 601u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 602 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 603 604-include include/autoconf.mk 605-include include/autoconf.mk.dep 606 607# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 608# is up-to-date. When we switch to a different board configuration, old CONFIG 609# macros are still remaining in include/config/auto.conf. Without the following 610# gimmick, wrong config.mk would be included leading nasty warnings/errors. 611ifneq ($(wildcard $(KCONFIG_CONFIG)),) 612ifneq ($(wildcard include/config/auto.conf),) 613autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 614 include/config/auto.conf) 615ifeq ($(autoconf_is_old),) 616include config.mk 617include arch/$(ARCH)/Makefile 618endif 619endif 620endif 621 622# These are set by the arch-specific config.mk. Make sure they are exported 623# so they can be used when building an EFI application. 624export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 625export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 626export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 627export CFLAGS_EFI # Compiler flags to add when building EFI app 628export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 629export EFI_TARGET # binutils target if EFI is natively supported 630 631# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 632# that (or fail if absent). Otherwise, search for a linker script in a 633# standard location. 634 635ifndef LDSCRIPT 636 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 637 ifdef CONFIG_SYS_LDSCRIPT 638 # need to strip off double quotes 639 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 640 endif 641endif 642 643# If there is no specified link script, we look in a number of places for it 644ifndef LDSCRIPT 645 ifeq ($(wildcard $(LDSCRIPT)),) 646 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 647 endif 648 ifeq ($(wildcard $(LDSCRIPT)),) 649 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 650 endif 651 ifeq ($(wildcard $(LDSCRIPT)),) 652 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 653 endif 654endif 655 656else 657# Dummy target needed, because used as prerequisite 658include/config/auto.conf: ; 659endif # $(dot-config) 660 661# 662# Xtensa linker script cannot be preprocessed with -ansi because of 663# preprocessor operations on strings that don't make C identifiers. 664# 665ifeq ($(CONFIG_XTENSA),) 666LDPPFLAGS += -ansi 667endif 668 669ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 670KBUILD_CFLAGS += -Os 671else 672KBUILD_CFLAGS += -O2 673endif 674 675KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 676KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 677 678# disable stringop warnings in gcc 8+ 679KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 680 681# Enabled with W=2, disabled by default as noisy 682KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 683 684# change __FILE__ to the relative path from the srctree 685KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 686 687KBUILD_CFLAGS += -g 688# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 689# option to the assembler. 690KBUILD_AFLAGS += -g 691 692# Report stack usage if supported 693# ARC tools based on GCC 7.1 has an issue with stack usage 694# with naked functions, see commit message for more details 695ifndef CONFIG_ARC 696ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 697 KBUILD_CFLAGS += -fstack-usage 698endif 699endif 700 701KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 702KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 703 704ifeq ($(cc-name),clang) 705KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 706KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 707KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 708KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 709# Quiet clang warning: comparison of unsigned expression < 0 is always false 710KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 711# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 712# source of a reference will be _MergedGlobals and not on of the whitelisted names. 713# See modpost pattern 2 714KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 715KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 716else 717 718# These warnings generated too much noise in a regular build. 719# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 720KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 721endif 722 723# Prohibit date/time macros, which would make the build non-deterministic 724KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 725 726include scripts/Makefile.extrawarn 727 728# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 729KBUILD_CPPFLAGS += $(KCPPFLAGS) 730KBUILD_AFLAGS += $(KAFLAGS) 731KBUILD_CFLAGS += $(KCFLAGS) 732 733KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 734 735# Use UBOOTINCLUDE when you must reference the include/ directory. 736# Needed to be compatible with the O= option 737UBOOTINCLUDE := \ 738 -Iinclude \ 739 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 740 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 741 $(if $(CONFIG_HAS_THUMB2), \ 742 $(if $(CONFIG_CPU_V7M), \ 743 -I$(srctree)/arch/arm/thumb1/include), \ 744 -I$(srctree)/arch/arm/thumb1/include)) \ 745 -I$(srctree)/arch/$(ARCH)/include \ 746 -include $(srctree)/include/linux/kconfig.h 747 748NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 749 750# FIX ME 751cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 752 $(NOSTDINC_FLAGS) 753c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 754 755######################################################################### 756# U-Boot objects....order is important (i.e. start must be first) 757 758HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 759 760libs-y += lib/ 761libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 762libs-$(CONFIG_OF_EMBED) += dts/ 763libs-y += fs/ 764libs-y += net/ 765libs-y += disk/ 766libs-y += drivers/ 767libs-y += drivers/dma/ 768libs-y += drivers/gpio/ 769libs-y += drivers/i2c/ 770libs-y += drivers/net/ 771libs-y += drivers/net/phy/ 772libs-y += drivers/power/ \ 773 drivers/power/domain/ \ 774 drivers/power/fuel_gauge/ \ 775 drivers/power/mfd/ \ 776 drivers/power/pmic/ \ 777 drivers/power/battery/ \ 778 drivers/power/regulator/ 779libs-y += drivers/spi/ 780libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 781libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 782libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 783libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 784libs-y += drivers/serial/ 785libs-y += drivers/usb/cdns3/ 786libs-y += drivers/usb/dwc3/ 787libs-y += drivers/usb/common/ 788libs-y += drivers/usb/emul/ 789libs-y += drivers/usb/eth/ 790libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 791libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 792libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 793libs-y += drivers/usb/host/ 794libs-y += drivers/usb/mtu3/ 795libs-y += drivers/usb/musb/ 796libs-y += drivers/usb/musb-new/ 797libs-y += drivers/usb/phy/ 798libs-y += drivers/usb/ulpi/ 799libs-y += cmd/ 800libs-y += common/ 801libs-y += env/ 802libs-$(CONFIG_API) += api/ 803ifdef CONFIG_POST 804libs-y += post/ 805endif 806libs-$(CONFIG_UNIT_TEST) += test/ 807libs-$(CONFIG_UT_ENV) += test/env/ 808libs-$(CONFIG_UT_OPTEE) += test/optee/ 809libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 810 811libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 812 813libs-y := $(sort $(libs-y)) 814 815u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 816 817u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 818 819libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 820 821u-boot-init := $(head-y) 822u-boot-main := $(libs-y) 823 824 825# Add GCC lib 826ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 827PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 828else 829PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 830endif 831PLATFORM_LIBS += $(PLATFORM_LIBGCC) 832 833ifdef CONFIG_CC_COVERAGE 834KBUILD_CFLAGS += --coverage 835PLATFORM_LIBGCC += -lgcov 836endif 837 838export PLATFORM_LIBS 839export PLATFORM_LIBGCC 840 841# Special flags for CPP when processing the linker script. 842# Pass the version down so we can handle backwards compatibility 843# on the fly. 844LDPPFLAGS += \ 845 -include $(srctree)/include/u-boot/u-boot.lds.h \ 846 -DCPUDIR=$(CPUDIR) \ 847 $(shell $(LD) --version | \ 848 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 849 850######################################################################### 851######################################################################### 852 853ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 854BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 855else 856BOARD_SIZE_CHECK = 857endif 858 859ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 860SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 861else 862SPL_SIZE_CHECK = 863endif 864 865ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 866TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 867else 868TPL_SIZE_CHECK = 869endif 870 871# Statically apply RELA-style relocations (currently arm64 only) 872# This is useful for arm64 where static relocation needs to be performed on 873# the raw binary, but certain simulators only accept an ELF file (but don't 874# do the relocation). 875ifneq ($(CONFIG_STATIC_RELA),) 876# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 877quiet_cmd_static_rela = RELOC $@ 878cmd_static_rela = \ 879 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 880 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 881 tools/relocate-rela $(3) $(4) $$start $$end 882else 883quiet_cmd_static_rela = 884cmd_static_rela = 885endif 886 887# Always append INPUTS so that arch config.mk's can add custom ones 888INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 889 890INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 891ifeq ($(CONFIG_SPL_FSL_PBL),y) 892INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 893else 894ifneq ($(CONFIG_NXP_ESBC), y) 895# For Secure Boot The Image needs to be signed and Header must also 896# be included. So The image has to be built explicitly 897INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 898endif 899endif 900INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 901ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 902INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 903else 904ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 905INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 906else 907INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 908endif 909endif 910INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 911INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb 912ifeq ($(CONFIG_SPL_FRAMEWORK),y) 913INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 914endif 915INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 916ifneq ($(CONFIG_SPL_TARGET),) 917INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 918endif 919INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 920INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 921INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 922 923# Generate this input file for binman 924ifeq ($(CONFIG_SPL),) 925INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 926endif 927 928# Add optional build target if defined in board/cpu/soc headers 929ifneq ($(CONFIG_BUILD_TARGET),) 930INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 931endif 932 933ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 934INPUTS-y += init_sp_bss_offset_check 935endif 936 937ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 938INPUTS-y += u-boot-with-dtb.bin 939endif 940 941ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 942# On ARM64 this target is produced by binman so we don't need this dep 943ifeq ($(CONFIG_ARM64),y) 944ifeq ($(CONFIG_SPL),y) 945# TODO: Get binman to generate this too 946INPUTS-y += u-boot-rockchip.bin 947endif 948else 949ifeq ($(CONFIG_SPL),y) 950# Generate these inputs for binman which will create the output files 951INPUTS-y += idbloader.img u-boot.img 952endif 953endif 954endif 955 956INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 957 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 958 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 959 960LDFLAGS_u-boot += $(LDFLAGS_FINAL) 961 962# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 963LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 964 965ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 966LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 967endif 968 969# insure the checker run with the right endianness 970CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 971 972# the checker needs the correct machine size 973CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 974 975# Normally we fill empty space with 0xff 976quiet_cmd_objcopy = OBJCOPY $@ 977cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 978 $(OBJCOPYFLAGS_$(@F)) $< $@ 979 980# Provide a version which does not do this, for use by EFI 981quiet_cmd_zobjcopy = OBJCOPY $@ 982cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 983 984quiet_cmd_efipayload = OBJCOPY $@ 985cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 986 987MKIMAGEOUTPUT ?= /dev/null 988 989quiet_cmd_mkimage = MKIMAGE $@ 990cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 991 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 992 993quiet_cmd_mkfitimage = MKIMAGE $@ 994cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 995 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 996 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 997 998quiet_cmd_cat = CAT $@ 999cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1000 1001append = cat $(filter-out $< $(PHONY), $^) >> $@ 1002 1003quiet_cmd_pad_cat = CAT $@ 1004cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1005 1006quiet_cmd_lzma = LZMA $@ 1007cmd_lzma = lzma -c -z -k -9 $< > $@ 1008 1009cfg: u-boot.cfg 1010 1011quiet_cmd_cfgcheck = CFGCHK $2 1012cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 1013 $(srctree)/scripts/config_whitelist.txt $(srctree) 1014 1015# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1016got = $(foreach cfg,$(1),$($(cfg))) 1017 1018# expected value 'y for each one 1019expect = $(foreach cfg,$(1),y) 1020 1021# Show a deprecation message 1022# Args: 1023# 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1024# 2: Name of component (e.g . "Ethernet drivers") 1025# 3: Release deadline (e.g. "v202.07") 1026# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1027# Note: Script avoids bash construct, hence the strange double 'if' 1028# (patches welcome!) 1029define deprecated 1030 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1031 echo >&2 "===================== WARNING ======================"; \ 1032 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1033 echo >&2 "for $(2)). Please update the board to use"; \ 1034 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1035 echo >&2 "update by the deadline may result in board removal."; \ 1036 echo >&2 "See doc/driver-model/migration.rst for more info."; \ 1037 echo >&2 "===================================================="; \ 1038 fi; fi 1039 1040endef 1041 1042PHONY += inputs 1043inputs: $(INPUTS-y) 1044 1045all: .binman_stamp inputs 1046ifeq ($(CONFIG_BINMAN),y) 1047 $(call if_changed,binman) 1048endif 1049 1050# Timestamp file to make sure that binman always runs 1051.binman_stamp: FORCE 1052 @touch $@ 1053 1054ifeq ($(CONFIG_DEPRECATED),y) 1055 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1056endif 1057ifeq ($(CONFIG_OF_EMBED),y) 1058 @echo >&2 "===================== WARNING ======================" 1059 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1060 @echo >&2 "be used for debugging purposes. Please use" 1061 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1062 @echo >&2 "See doc/README.fdt-control for more info." 1063 @echo >&2 "====================================================" 1064endif 1065ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1066 @echo >&2 "===================== WARNING ======================" 1067 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1068 @echo >&2 "to binman instead, to avoid the proliferation of" 1069 @echo >&2 "arch-specific scripts with no tests." 1070 @echo >&2 "====================================================" 1071endif 1072ifneq ($(CONFIG_DM),y) 1073 @echo >&2 "===================== WARNING ======================" 1074 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be" 1075 @echo >&2 "compulsory starting with the v2020.01 release." 1076 @echo >&2 "Failure to update may result in board removal." 1077 @echo >&2 "See doc/driver-model/migration.rst for more info." 1078 @echo >&2 "====================================================" 1079endif 1080 $(call deprecated,CONFIG_DM_MMC CONFIG_BLK,MMC,v2019.04,$(CONFIG_MMC)) 1081 $(call deprecated,CONFIG_DM_USB CONFIG_OF_CONTROL CONFIG_BLK,\ 1082 USB,v2019.07,$(CONFIG_USB)) 1083 $(call deprecated,CONFIG_AHCI,AHCI instead of CONFIG_MVSATA_IDE,v2019.07, \ 1084 $(CONFIG_MVSATA_IDE)) 1085 $(call deprecated,CONFIG_AHCI,AHCI,v2019.07, $(CONFIG_LIBATA)) 1086 $(call deprecated,CONFIG_DM_PCI,PCI,v2019.07,$(CONFIG_PCI)) 1087 $(call deprecated,CONFIG_DM_VIDEO,video,v2019.07,\ 1088 $(CONFIG_LCD)$(CONFIG_VIDEO)) 1089 $(call deprecated,CONFIG_DM_SPI_FLASH,SPI flash,v2019.07,\ 1090 $(CONFIG_SPI_FLASH)) 1091 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1092 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1093 $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET)) 1094 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_I2C)) 1095 @# Check that this build does not use CONFIG options that we do not 1096 @# know about unless they are in Kconfig. All the existing CONFIG 1097 @# options are whitelisted, so new ones should not be added. 1098 $(call cmd,cfgcheck,u-boot.cfg) 1099 1100PHONY += dtbs 1101dtbs: dts/dt.dtb 1102 @: 1103dts/dt.dtb: u-boot 1104 $(Q)$(MAKE) $(build)=dts dtbs 1105 1106quiet_cmd_copy = COPY $@ 1107 cmd_copy = cp $< $@ 1108 1109ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1110 1111ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1112FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1113else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1114FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1115else 1116FINAL_DTB_CONTAINER = fit-dtb.blob 1117endif 1118 1119fit-dtb.blob.gz: fit-dtb.blob 1120 @gzip -kf9 $< > $@ 1121 1122fit-dtb.blob.lzo: fit-dtb.blob 1123 @lzop -f9 $< > $@ 1124 1125fit-dtb.blob: dts/dt.dtb FORCE 1126 $(call if_changed,mkimage) 1127ifneq ($(SOURCE_DATE_EPOCH),) 1128 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1129 chmod 0600 fit-dtb.blob 1130endif 1131 1132MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1133 -a 0 -e 0 -E \ 1134 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1135 1136ifneq ($(EXT_DTB),) 1137u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1138 $(call if_changed,cat) 1139else 1140u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1141 $(call if_changed,cat) 1142endif 1143 1144u-boot.bin: u-boot-fit-dtb.bin FORCE 1145 $(call if_changed,copy) 1146 1147u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1148 $(call if_changed,cat) 1149 1150else ifeq ($(CONFIG_OF_SEPARATE),y) 1151u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1152 $(call if_changed,cat) 1153 1154u-boot.bin: u-boot-dtb.bin FORCE 1155 $(call if_changed,copy) 1156else 1157u-boot.bin: u-boot-nodtb.bin FORCE 1158 $(call if_changed,copy) 1159endif 1160 1161# we call Makefile in arch/arm/mach-imx which 1162# has targets which are dependent on targets defined 1163# here. make could not resolve them and we must ensure 1164# that they are finished before calling imx targets 1165ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1166IMX_DEPS = u-boot-fit-dtb.bin 1167endif 1168 1169%.imx: $(IMX_DEPS) %.bin 1170 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1171 $(BOARD_SIZE_CHECK) 1172 1173%.vyb: %.imx 1174 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1175 1176quiet_cmd_copy = COPY $@ 1177 cmd_copy = cp $< $@ 1178 1179u-boot.dtb: dts/dt.dtb 1180 $(call cmd,copy) 1181 1182OBJCOPYFLAGS_u-boot.hex := -O ihex 1183 1184OBJCOPYFLAGS_u-boot.srec := -O srec 1185 1186u-boot.hex u-boot.srec: u-boot FORCE 1187 $(call if_changed,objcopy) 1188 1189OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1190 1191u-boot-elf.srec: u-boot.elf FORCE 1192 $(call if_changed,objcopy) 1193 1194OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1195 1196spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1197 $(call if_changed,objcopy) 1198 1199%.scif: %.srec 1200 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1201 1202OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1203 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1204 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1205 1206binary_size_check: u-boot-nodtb.bin FORCE 1207 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1208 map_size=$(shell cat u-boot.map | \ 1209 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1210 | sed 's/0X//g' \ 1211 | bc); \ 1212 if [ "" != "$$map_size" ]; then \ 1213 if test $$map_size -ne $$file_size; then \ 1214 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1215 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1216 exit 1; \ 1217 fi \ 1218 fi 1219 1220ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1221ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1222subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1223else 1224subtract_sys_malloc_f_len = true 1225endif 1226# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1227# so low that the DTB could probably use 90%+ of the available space, for 1228# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1229# safe for now and tweak this later if space becomes tight. 1230# A rejected alternative would be to check that some absolute minimum stack 1231# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1232# deliberately build-specific, to take account of build-to-build stack usage 1233# differences due to different feature sets, there is no common absolute value 1234# to check against. 1235init_sp_bss_offset_check: u-boot.dtb FORCE 1236 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1237 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1238 $(subtract_sys_malloc_f_len) ; \ 1239 quarter_space=$$(($${space} / 4)) ; \ 1240 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1241 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1242 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1243 exit 1 ; \ 1244 fi 1245endif 1246 1247shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1248 1249quiet_cmd_objcopy_uboot = OBJCOPY $@ 1250ifdef cmd_static_rela 1251cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; } 1252else 1253cmd_objcopy_uboot = $(cmd_objcopy) 1254endif 1255 1256u-boot-nodtb.bin: u-boot FORCE 1257 $(call if_changed,objcopy_uboot) 1258 $(BOARD_SIZE_CHECK) 1259 1260u-boot.ldr: u-boot 1261 $(CREATE_LDR_ENV) 1262 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1263 $(BOARD_SIZE_CHECK) 1264 1265# binman 1266# --------------------------------------------------------------------------- 1267# Use 'make BINMAN_DEBUG=1' to enable debugging 1268default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1269quiet_cmd_binman = BINMAN $@ 1270cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1271 --toolpath $(objtree)/tools \ 1272 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1273 build -u -d u-boot.dtb -O . -m --allow-missing \ 1274 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1275 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ 1276 -a atf-bl31-path=${BL31} \ 1277 -a default-dt=$(default_dt) \ 1278 -a scp-path=$(SCP) \ 1279 $(BINMAN_$(@F)) 1280 1281OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1282 1283OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1284 1285u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1286 $(call if_changed,objcopy) 1287 1288# 1289# U-Boot entry point, needed for booting of full-blown U-Boot 1290# from the SPL U-Boot version. 1291# 1292ifndef CONFIG_SYS_UBOOT_START 1293CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE) 1294endif 1295 1296# Boards with more complex image requirements can provide an .its source file 1297# or a generator script 1298# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1299# binman instead. 1300ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1301U_BOOT_ITS := u-boot.its 1302$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1303 $(call if_changed,copy) 1304else 1305ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1306U_BOOT_ITS := u-boot.its 1307ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1308U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1309endif 1310ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1311U_BOOT_ITS_DEPS += u-boot 1312endif 1313$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1314 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1315 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1316endif 1317endif 1318 1319ifdef CONFIG_SPL_LOAD_FIT 1320MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1321 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1322 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1323 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1324 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1325 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1326 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1327else 1328MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1329 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1330 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1331MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1332 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1333 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1334u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1335endif 1336 1337MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1338 1339# Some boards have the kwbimage.cfg file written in advance, while some 1340# other boards generate it on the fly during the build in the build tree. 1341# Let's check if the file exists in the build tree first, otherwise we 1342# fall back to use the one in the source tree. 1343KWD_CONFIG_FILE = $(shell \ 1344 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1345 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1346 else \ 1347 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1348 fi) 1349 1350MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1351 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1352 1353MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1354 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1355 $(if $(KEYDIR),-k $(KEYDIR)) 1356 1357MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1358 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1359 1360ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1361UBOOT_BIN := u-boot-with-dtb.bin 1362else 1363UBOOT_BIN := u-boot.bin 1364endif 1365 1366MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1367 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1368 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1369 1370u-boot.bin.lzma: u-boot.bin FORCE 1371 $(call if_changed,lzma) 1372 1373u-boot-lzma.img: u-boot.bin.lzma FORCE 1374 $(call if_changed,mkimage) 1375 1376u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1377 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1378 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ 1379 ,$(UBOOT_BIN)) FORCE 1380 $(call if_changed,mkimage) 1381 $(BOARD_SIZE_CHECK) 1382 1383ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1384MKIMAGEFLAGS_u-boot.itb = 1385else 1386MKIMAGEFLAGS_u-boot.itb = -E 1387endif 1388 1389ifdef U_BOOT_ITS 1390u-boot.itb: u-boot-nodtb.bin \ 1391 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ 1392 $(U_BOOT_ITS) FORCE 1393 $(call if_changed,mkfitimage) 1394 $(BOARD_SIZE_CHECK) 1395endif 1396 1397u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1398 $(call if_changed,mkimage) 1399 1400u-boot.sha1: u-boot.bin 1401 tools/ubsha1 u-boot.bin 1402 1403u-boot.dis: u-boot 1404 $(OBJDUMP) -d $< > $@ 1405 1406ifneq ($(CONFIG_SPL_PAYLOAD),) 1407SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1408else 1409SPL_PAYLOAD := u-boot.bin 1410endif 1411 1412SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1413 1414OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1415 --pad-to=$(CONFIG_SPL_PAD_TO) 1416u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1417 $(call if_changed,pad_cat) 1418 1419ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 1420 1421# TPL + SPL 1422ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy) 1423MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd 1424tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE 1425 $(call if_changed,mkimage) 1426idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE 1427 $(call if_changed,cat) 1428else 1429MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd 1430idbloader.img: spl/u-boot-spl.bin FORCE 1431 $(call if_changed,mkimage) 1432endif 1433 1434ifeq ($(CONFIG_ARM64),y) 1435OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \ 1436 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1437u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE 1438 $(call if_changed,pad_cat) 1439endif # CONFIG_ARM64 1440 1441endif # CONFIG_ARCH_ROCKCHIP 1442 1443ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1444MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1445 1446lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1447 $(call if_changed,mkimage) 1448 1449OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1450 1451lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1452 $(call if_changed,objcopy) 1453 1454OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1455 1456lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1457 $(call if_changed,objcopy) 1458 1459lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1460 $(call if_changed,cat) 1461 1462endif 1463 1464OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1465 --pad-to=$(CONFIG_TPL_PAD_TO) 1466tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1467 $(call if_changed,pad_cat) 1468 1469SPL: spl/u-boot-spl.bin FORCE 1470 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1471 1472ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1473ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1474u-boot.cnt: u-boot.bin FORCE 1475 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1476 1477flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1478 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1479else 1480flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1481 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1482endif 1483endif 1484 1485u-boot.uim: u-boot.bin FORCE 1486 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1487 1488u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1489 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1490 1491MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1492 1493u-boot.ubl: u-boot-with-spl.bin FORCE 1494 $(call if_changed,mkimage) 1495 1496MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1497 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1498 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1499spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1500 $(call if_changed,mkimage) 1501 1502OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1503u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1504 $(call if_changed,pad_cat) 1505 1506u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1507 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1508u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1509 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1510 1511# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1512# Both images are created using mkimage (crc etc), so that the ROM 1513# bootloader can check its integrity. Padding needs to be done to the 1514# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1515# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1516# The resulting image containing both U-Boot images is called u-boot.spr 1517MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1518 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1519spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1520 $(call if_changed,mkimage) 1521 1522OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1523 --gap-fill=0xff 1524u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1525 $(call if_changed,pad_cat) 1526 1527ifneq ($(CONFIG_ARCH_SOCFPGA),) 1528quiet_cmd_gensplx4 = GENSPLX4 $@ 1529cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1530 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1531 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1532 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1533 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1534spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1535 $(call if_changed,gensplx4) 1536 1537quiet_cmd_socboot = SOCBOOT $@ 1538cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1539u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1540 $(call if_changed,socboot) 1541 1542quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1543cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1544 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1545 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1546 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1547 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1548 { rm -f $@ spl/u-boot-spl.pad; false; } 1549u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1550 $(call if_changed,gensplpadx4) 1551 1552quiet_cmd_socnandboot = SOCNANDBOOT $@ 1553cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1554u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1555 $(call if_changed,socnandboot) 1556 1557endif 1558 1559ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1560u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1561 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1562 $(call if_changed,binman) 1563 1564ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1565OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1566u-boot-br.bin: u-boot FORCE 1567 $(call if_changed,objcopy) 1568endif 1569endif 1570 1571quiet_cmd_ldr = LD $@ 1572cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1573 $(filter-out FORCE,$^) -o $@ 1574 1575ifdef CONFIG_X86 1576OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1577u-boot-x86-start16.bin: u-boot FORCE 1578 $(call if_changed,objcopy) 1579 1580OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1581u-boot-x86-reset16.bin: u-boot FORCE 1582 $(call if_changed,objcopy) 1583 1584endif # CONFIG_X86 1585 1586OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1587u-boot-app.efi: u-boot FORCE 1588 $(call if_changed,zobjcopy) 1589 1590u-boot.bin.o: u-boot.bin FORCE 1591 $(call if_changed,efipayload) 1592 1593u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1594 $(call if_changed_dep,cpp_lds) 1595 1596# Rule to link the EFI payload which contains a stub and a U-Boot binary 1597quiet_cmd_u-boot_payload ?= LD $@ 1598 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1599 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1600 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1601 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1602 1603u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1604 $(call if_changed,u-boot_payload) 1605 1606OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1607u-boot-payload.efi: u-boot-payload FORCE 1608 $(call if_changed,zobjcopy) 1609 1610u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1611 $(call if_changed,cat) 1612 1613#Add a target to create boot binary having SPL binary in PBI format 1614#concatenated with u-boot binary. It is need by PowerPC SoC having 1615#internal SRAM <= 512KB. 1616MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1617 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1618 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1619 1620spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1621 $(call if_changed,mkimage) 1622 1623ifeq ($(ARCH),arm) 1624UBOOT_BINLOAD := u-boot.img 1625else 1626ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1627UBOOT_BINLOAD := u-boot-with-dtb.bin 1628else 1629UBOOT_BINLOAD := u-boot.bin 1630endif 1631endif 1632 1633OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1634 --gap-fill=0xff 1635 1636u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1637 $(call if_changed,pad_cat) 1638 1639# PPC4xx needs the SPL at the end of the image, since the reset vector 1640# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1641# and need to introduce a new build target with the full blown U-Boot 1642# at the start padded up to the start of the SPL image. And then concat 1643# the SPL image to the end. 1644 1645OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1646 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1647u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1648 $(call if_changed,pad_cat) 1649 1650quiet_cmd_u-boot-elf ?= LD $@ 1651 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1652 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1653 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1654u-boot.elf: u-boot.bin u-boot-elf.lds 1655 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1656 $(call if_changed,u-boot-elf) 1657 1658u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1659 $(call if_changed_dep,cpp_lds) 1660 1661# MediaTek's ARM-based u-boot needs a header to contains its load address 1662# which is parsed by the BootROM. 1663# If the SPL build is enabled, the header will be added to the spl binary, 1664# and the spl binary and the u-boot.img will be combined into one file. 1665# Otherwise the header will be added to the u-boot.bin directly. 1666 1667ifeq ($(CONFIG_SPL),y) 1668spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1669else 1670MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1671 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1672 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1673 1674u-boot-mtk.bin: u-boot.bin FORCE 1675 $(call if_changed,mkimage) 1676endif 1677 1678quiet_cmd_endian_swap = SWAP $@ 1679 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1680 1681u-boot-swap.bin: u-boot.bin FORCE 1682 $(call if_changed,endian_swap) 1683 1684ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1685 1686# Rule to link u-boot 1687# May be overridden by arch/$(ARCH)/config.mk 1688quiet_cmd_u-boot__ ?= LD $@ 1689 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1690 -T u-boot.lds $(u-boot-init) \ 1691 --start-group $(u-boot-main) --end-group \ 1692 $(PLATFORM_LIBS) -Map u-boot.map; \ 1693 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1694 1695quiet_cmd_smap = GEN common/system_map.o 1696cmd_smap = \ 1697 smap=`$(call SYSTEM_MAP,u-boot) | \ 1698 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1699 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1700 -c $(srctree)/common/system_map.c -o common/system_map.o 1701 1702u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1703 +$(call if_changed,u-boot__) 1704ifeq ($(CONFIG_KALLSYMS),y) 1705 $(call cmd,smap) 1706 $(call cmd,u-boot__) common/system_map.o 1707endif 1708 1709ifeq ($(CONFIG_RISCV),y) 1710 @tools/prelink-riscv $@ 0 1711endif 1712 1713quiet_cmd_sym ?= SYM $@ 1714 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1715u-boot.sym: u-boot FORCE 1716 $(call if_changed,sym) 1717 1718# The actual objects are generated when descending, 1719# make sure no implicit rule kicks in 1720$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1721 1722# Handle descending into subdirectories listed in $(u-boot-dirs) 1723# Preset locale variables to speed up the build process. Limit locale 1724# tweaks to this spot to avoid wrong language settings when running 1725# make menuconfig etc. 1726# Error messages still appears in the original language 1727 1728PHONY += $(u-boot-dirs) 1729$(u-boot-dirs): prepare scripts 1730 $(Q)$(MAKE) $(build)=$@ 1731 1732tools: prepare 1733# The "tools" are needed early 1734$(filter-out tools, $(u-boot-dirs)): tools 1735# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1736# is "yes"), so compile examples after U-Boot is compiled. 1737examples: $(filter-out examples, $(u-boot-dirs)) 1738 1739define filechk_uboot.release 1740 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1741endef 1742 1743# Store (new) UBOOTRELEASE string in include/config/uboot.release 1744include/config/uboot.release: include/config/auto.conf FORCE 1745 $(call filechk,uboot.release) 1746 1747 1748# Things we need to do before we recursively start building the kernel 1749# or the modules are listed in "prepare". 1750# A multi level approach is used. prepareN is processed before prepareN-1. 1751# archprepare is used in arch Makefiles and when processed asm symlink, 1752# version.h and scripts_basic is processed / created. 1753 1754# Listed in dependency order 1755PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1756 1757# prepare3 is used to check if we are building in a separate output directory, 1758# and if so do: 1759# 1) Check that make has not been executed in the kernel src $(srctree) 1760prepare3: include/config/uboot.release 1761ifneq ($(KBUILD_SRC),) 1762 @$(kecho) ' Using $(srctree) as source for U-Boot' 1763 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1764 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1765 echo >&2 " in the '$(srctree)' directory.";\ 1766 /bin/false; \ 1767 fi; 1768endif 1769 1770# prepare2 creates a makefile if using a separate output directory 1771prepare2: prepare3 outputmakefile cfg 1772 1773prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \ 1774 include/config/auto.conf 1775ifeq ($(wildcard $(LDSCRIPT)),) 1776 @echo >&2 " Could not find linker script." 1777 @/bin/false 1778endif 1779 1780ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1781prepare1: $(defaultenv_h) 1782endif 1783 1784archprepare: prepare1 scripts_basic 1785 1786prepare0: archprepare FORCE 1787 $(Q)$(MAKE) $(build)=. 1788 1789# All the preparing.. 1790prepare: prepare0 1791 1792# Generate some files 1793# --------------------------------------------------------------------------- 1794 1795# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1796define filechk_version.h 1797 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1798 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1799 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1800 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1801 sed -e "s/^0*//"); \ 1802 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1803 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1804endef 1805 1806# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1807# The BSD date on the other hand behaves different and would produce errors 1808# with the misused '-d' switch. Respect that and search a working date with 1809# well known pre- and suffixes for the GNU variant of date. 1810define filechk_timestamp.h 1811 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1812 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1813 DATE=""; \ 1814 for date in gdate date.gnu date; do \ 1815 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1816 done; \ 1817 if test -n "$${DATE}"; then \ 1818 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1819 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1820 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1821 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1822 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1823 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1824 else \ 1825 return 42; \ 1826 fi; \ 1827 else \ 1828 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1829 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1830 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1831 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1832 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1833 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1834 fi) 1835endef 1836 1837define filechk_defaultenv.h 1838 (grep -v '^#' | \ 1839 grep -v '^$$' | \ 1840 tr '\n' '\0' | \ 1841 sed -e 's/\\\x0\s*//g' | \ 1842 xxd -i ; echo ", 0x00" ; ) 1843endef 1844 1845define filechk_dt.h 1846 (if test -n "$${DEVICE_TREE}"; then \ 1847 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 1848 else \ 1849 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 1850 fi) 1851endef 1852 1853$(version_h): include/config/uboot.release FORCE 1854 $(call filechk,version.h) 1855 1856$(timestamp_h): $(srctree)/Makefile FORCE 1857 $(call filechk,timestamp.h) 1858 1859$(dt_h): $(srctree)/Makefile FORCE 1860 $(call filechk,dt.h) 1861 1862$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1863 $(call filechk,defaultenv.h) 1864 1865# --------------------------------------------------------------------------- 1866quiet_cmd_cpp_lds = LDS $@ 1867cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1868 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1869 1870u-boot.lds: $(LDSCRIPT) prepare FORCE 1871 $(call if_changed_dep,cpp_lds) 1872 1873spl/u-boot-spl.bin: spl/u-boot-spl 1874 @: 1875 $(SPL_SIZE_CHECK) 1876 1877spl/u-boot-spl-dtb.bin: spl/u-boot-spl 1878 @: 1879 1880spl/u-boot-spl-dtb.hex: spl/u-boot-spl 1881 @: 1882 1883spl/u-boot-spl: tools prepare \ 1884 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1885 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1886 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1887 1888spl/sunxi-spl.bin: spl/u-boot-spl 1889 @: 1890 1891spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1892 @: 1893 1894spl/u-boot-spl.sfp: spl/u-boot-spl 1895 @: 1896 1897spl/boot.bin: spl/u-boot-spl 1898 @: 1899 1900tpl/u-boot-tpl.bin: tools prepare \ 1901 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1902 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1903 $(TPL_SIZE_CHECK) 1904 1905TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1906 1907FIND := find 1908FINDFLAGS := -L 1909 1910tags ctags: 1911 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1912 -name '*.[chS]' -print` 1913 ln -s ctags tags 1914 1915etags: 1916 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1917 -name '*.[chS]' -print` 1918cscope: 1919 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1920 cscope.files 1921 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 1922 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 1923 mv cscope.files.no-symlinks cscope.files 1924 cscope -b -q -k 1925 1926SYSTEM_MAP = \ 1927 $(NM) $1 | \ 1928 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1929 LC_ALL=C sort 1930System.map: u-boot 1931 @$(call SYSTEM_MAP,$<) > $@ 1932 1933######################################################################### 1934 1935# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1936# R_AARCH64_RELATIVE (64-bit). 1937checkarmreloc: u-boot 1938 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1939 grep R_A | sort -u`"; \ 1940 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1941 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1942 echo "$< contains unexpected relocations: $$RELOC"; \ 1943 false; \ 1944 fi 1945 1946tools/version.h: include/version.h 1947 $(Q)mkdir -p $(dir $@) 1948 $(call if_changed,copy) 1949 1950envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 1951 $(Q)$(MAKE) $(build)=tools/env 1952 1953tools-only: export TOOLS_ONLY=y 1954tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 1955 $(Q)$(MAKE) $(build)=tools 1956 1957tools-all: export HOST_TOOLS_ALL=y 1958tools-all: envtools tools ; 1959 1960cross_tools: export CROSS_BUILD_TOOLS=y 1961cross_tools: tools ; 1962 1963.PHONY : CHANGELOG 1964CHANGELOG: 1965 git log --no-merges U-Boot-1_1_5.. | \ 1966 unexpand -a | sed -e 's/\s\s*$$//' > $@ 1967 1968######################################################################### 1969 1970### 1971# Cleaning is done on three levels. 1972# make clean Delete most generated files 1973# Leave enough to build external modules 1974# make mrproper Delete the current configuration, and all generated files 1975# make distclean Remove editor backup files, patch leftover files and the like 1976 1977# Directories & files removed with 'make clean' 1978CLEAN_DIRS += $(MODVERDIR) \ 1979 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 1980 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 1981 1982CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \ 1983 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \ 1984 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 1985 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 1986 idbloader.img flash.bin flash.log defconfig 1987 1988# Directories & files removed with 'make mrproper' 1989MRPROPER_DIRS += include/config include/generated spl tpl \ 1990 .tmp_objdiff doc/output 1991MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 1992 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1993 drivers/video/fonts/*.S 1994 1995# clean - Delete most, but leave enough to build external modules 1996# 1997clean: rm-dirs := $(CLEAN_DIRS) 1998clean: rm-files := $(CLEAN_FILES) 1999 2000clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2001 2002clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2003 2004PHONY += $(clean-dirs) clean archclean 2005$(clean-dirs): 2006 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2007 2008clean: $(clean-dirs) 2009 $(call cmd,rmdirs) 2010 $(call cmd,rmfiles) 2011 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2012 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2013 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2014 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2015 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2016 -o -name '*.asn1.[ch]' \ 2017 -o -name '*.symtypes' -o -name 'modules.order' \ 2018 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2019 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 2020 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2021 -type f -print | xargs rm -f 2022 2023# mrproper - Delete all generated files, including .config 2024# 2025mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2026mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2027mrproper-dirs := $(addprefix _mrproper_,scripts) 2028 2029PHONY += $(mrproper-dirs) mrproper archmrproper 2030$(mrproper-dirs): 2031 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2032 2033mrproper: clean $(mrproper-dirs) 2034 $(call cmd,rmdirs) 2035 $(call cmd,rmfiles) 2036 @rm -f arch/*/include/asm/arch 2037 2038# distclean 2039# 2040PHONY += distclean 2041 2042distclean: mrproper 2043 @find $(srctree) $(RCS_FIND_IGNORE) \ 2044 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2045 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2046 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2047 -o -name '*.pyc' \) \ 2048 -type f -print | xargs rm -f 2049 @rm -f boards.cfg CHANGELOG 2050 2051backup: 2052 F=`basename $(srctree)` ; cd .. ; \ 2053 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2054 2055help: 2056 @echo 'Cleaning targets:' 2057 @echo ' clean - Remove most generated files but keep the config' 2058 @echo ' mrproper - Remove all generated files + config + various backup files' 2059 @echo ' distclean - mrproper + remove editor backup and patch files' 2060 @echo '' 2061 @echo 'Configuration targets:' 2062 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2063 @echo '' 2064 @echo 'Test targets:' 2065 @echo '' 2066 @echo ' check - Run all automated tests that use sandbox' 2067 @echo ' qcheck - Run quick automated tests that use sandbox' 2068 @echo ' tcheck - Run quick automated tests on tools' 2069 @echo '' 2070 @echo 'Other generic targets:' 2071 @echo ' all - Build all necessary images depending on configuration' 2072 @echo ' tests - Build U-Boot for sandbox and run tests' 2073 @echo '* u-boot - Build the bare u-boot' 2074 @echo ' dir/ - Build all files in dir and below' 2075 @echo ' dir/file.[oisS] - Build specified target only' 2076 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2077 @echo ' (requires a recent binutils and recent build (System.map))' 2078 @echo ' tags/ctags - Generate ctags file for editors' 2079 @echo ' etags - Generate etags file for editors' 2080 @echo ' cscope - Generate cscope index' 2081 @echo ' ubootrelease - Output the release version string (use with make -s)' 2082 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2083 @echo " cfg - Don't build, just create the .cfg files" 2084 @echo " envtools - Build only the target-side environment tools" 2085 @echo '' 2086 @echo 'Static analysers' 2087 @echo ' checkstack - Generate a list of stack hogs' 2088 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2089 @echo '' 2090 @echo 'Documentation targets:' 2091 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2092 @echo '' 2093 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2094 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2095 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2096 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2097 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2098 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2099 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2100 @echo ' 1: warnings which may be relevant and do not occur too often' 2101 @echo ' 2: warnings which occur quite often but may still be relevant' 2102 @echo ' 3: more obscure warnings, can most likely be ignored' 2103 @echo ' Multiple levels can be combined with W=12 or W=123' 2104 @echo '' 2105 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2106 @echo 'For further info see the ./README file' 2107 2108tests check: 2109 $(srctree)/test/run 2110 2111qcheck: 2112 $(srctree)/test/run quick 2113 2114tcheck: 2115 $(srctree)/test/run tools 2116 2117# Documentation targets 2118# --------------------------------------------------------------------------- 2119DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2120 linkcheckdocs dochelp refcheckdocs 2121PHONY += $(DOC_TARGETS) 2122$(DOC_TARGETS): scripts_basic FORCE 2123 $(Q)$(MAKE) $(build)=doc $@ 2124 2125endif #ifeq ($(config-targets),1) 2126endif #ifeq ($(mixed-targets),1) 2127 2128PHONY += checkstack ubootrelease ubootversion 2129 2130checkstack: 2131 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2132 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2133 2134ubootrelease: 2135 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2136 2137ubootversion: 2138 @echo $(UBOOTVERSION) 2139 2140# Single targets 2141# --------------------------------------------------------------------------- 2142# Single targets are compatible with: 2143# - build with mixed source and output 2144# - build with separate output dir 'make O=...' 2145# - external modules 2146# 2147# target-dir => where to store outputfile 2148# build-dir => directory in kernel source tree to use 2149 2150ifeq ($(KBUILD_EXTMOD),) 2151 build-dir = $(patsubst %/,%,$(dir $@)) 2152 target-dir = $(dir $@) 2153else 2154 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2155 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2156 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2157endif 2158 2159%.s: %.c prepare scripts FORCE 2160 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2161%.i: %.c prepare scripts FORCE 2162 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2163%.o: %.c prepare scripts FORCE 2164 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2165%.lst: %.c prepare scripts FORCE 2166 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2167%.s: %.S prepare scripts FORCE 2168 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2169%.o: %.S prepare scripts FORCE 2170 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2171%.symtypes: %.c prepare scripts FORCE 2172 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2173 2174# Modules 2175/: prepare scripts FORCE 2176 $(cmd_crmodverdir) 2177 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2178 $(build)=$(build-dir) 2179%/: prepare scripts FORCE 2180 $(cmd_crmodverdir) 2181 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2182 $(build)=$(build-dir) 2183%.ko: prepare scripts FORCE 2184 $(cmd_crmodverdir) 2185 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2186 $(build)=$(build-dir) $(@:.ko=.o) 2187 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2188 2189quiet_cmd_genenv = GENENV $@ 2190cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \ 2191 sed --in-place -e 's/\x00/\x0A/g' $@ 2192 2193u-boot-initial-env: u-boot.bin 2194 $(call if_changed,genenv) 2195 2196# Consistency checks 2197# --------------------------------------------------------------------------- 2198 2199PHONY += coccicheck 2200 2201coccicheck: 2202 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2203 2204# FIXME Should go into a make.lib or something 2205# =========================================================================== 2206 2207quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2208 cmd_rmdirs = rm -rf $(rm-dirs) 2209 2210quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2211 cmd_rmfiles = rm -f $(rm-files) 2212 2213# read all saved command lines 2214 2215cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd)) 2216 2217ifneq ($(cmd_files),) 2218 $(cmd_files): ; # Do not try to update included dependency files 2219 include $(cmd_files) 2220endif 2221 2222endif # skip-makefile 2223 2224PHONY += FORCE 2225FORCE: 2226 2227# Declare the contents of the PHONY variable as phony. We keep that 2228# information in a variable so we can use it in if_changed and friends. 2229.PHONY: $(PHONY) 2230