1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2020 4PATCHLEVEL = 10 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# since Lion (10.7) ASLR is on by default, but we use linker generated lists 328# in some host tools which is a problem then ... so disable ASLR for these 329# tools 330KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie") 331 332# macOS Mojave (10.14.X) 333# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" 334KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") 335endif 336 337# Decide whether to build built-in, modular, or both. 338# Normally, just do built-in. 339 340KBUILD_MODULES := 341KBUILD_BUILTIN := 1 342 343# If we have only "make modules", don't compile built-in objects. 344# When we're building modules with modversions, we need to consider 345# the built-in objects during the descend as well, in order to 346# make sure the checksums are up to date before we record them. 347 348ifeq ($(MAKECMDGOALS),modules) 349 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 350endif 351 352# If we have "make <whatever> modules", compile modules 353# in addition to whatever we do anyway. 354# Just "make" or "make all" shall build modules as well 355 356# U-Boot does not need modules 357#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 358# KBUILD_MODULES := 1 359#endif 360 361#ifeq ($(MAKECMDGOALS),) 362# KBUILD_MODULES := 1 363#endif 364 365# Check ths size of a binary: 366# Args: 367# $1: File to check 368# #2: Size limit in bytes (decimal or 0xhex) 369define size_check 370 actual=$$( wc -c $1 | awk '{print $$1}'); \ 371 limit=$$( printf "%d" $2 ); \ 372 if test $$actual -gt $$limit; then \ 373 echo "$1 exceeds file size limit:" >&2; \ 374 echo " limit: $$(printf %#x $$limit) bytes" >&2; \ 375 echo " actual: $$(printf %#x $$actual) bytes" >&2; \ 376 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\ 377 exit 1; \ 378 fi 379endef 380export size_check 381 382export KBUILD_MODULES KBUILD_BUILTIN 383export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 384 385# We need some generic definitions (do not try to remake the file). 386scripts/Kbuild.include: ; 387include scripts/Kbuild.include 388 389# Make variables (CC, etc...) 390 391AS = $(CROSS_COMPILE)as 392# Always use GNU ld 393ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 394LD = $(CROSS_COMPILE)ld.bfd 395else 396LD = $(CROSS_COMPILE)ld 397endif 398CC = $(CROSS_COMPILE)gcc 399CPP = $(CC) -E 400AR = $(CROSS_COMPILE)ar 401NM = $(CROSS_COMPILE)nm 402LDR = $(CROSS_COMPILE)ldr 403STRIP = $(CROSS_COMPILE)strip 404OBJCOPY = $(CROSS_COMPILE)objcopy 405OBJDUMP = $(CROSS_COMPILE)objdump 406LEX = flex 407YACC = bison 408AWK = awk 409PERL = perl 410PYTHON ?= python 411PYTHON2 = python2 412PYTHON3 = python3 413DTC ?= $(objtree)/scripts/dtc/dtc 414CHECK = sparse 415 416CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 417 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 418 419KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 420 421KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 422 -Wno-format-security \ 423 -fno-builtin -ffreestanding $(CSTD_FLAG) 424KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 425KBUILD_AFLAGS := -D__ASSEMBLY__ 426KBUILD_LDFLAGS := 427 428ifeq ($(cc-name),clang) 429ifneq ($(CROSS_COMPILE),) 430CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 431GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 432CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 433GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 434endif 435ifneq ($(GCC_TOOLCHAIN),) 436CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 437endif 438KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 439KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 440KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 441KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 442endif 443 444# Don't generate position independent code 445KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 446KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 447 448# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 449UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 450UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 451 452export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 453export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 454export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 455export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 456export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 457export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 458 459export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 460export KBUILD_CFLAGS KBUILD_AFLAGS 461 462export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 463 464# When compiling out-of-tree modules, put MODVERDIR in the module 465# tree rather than in the kernel tree. The kernel tree might 466# even be read-only. 467export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 468 469# Files to ignore in find ... statements 470 471export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 472 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 473 -prune -o 474export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 475 --exclude CVS --exclude .pc --exclude .hg --exclude .git 476 477# =========================================================================== 478# Rules shared between *config targets and build targets 479 480# Basic helpers built in scripts/ 481PHONY += scripts_basic 482scripts_basic: 483 $(Q)$(MAKE) $(build)=scripts/basic 484 $(Q)rm -f .tmp_quiet_recordmcount 485 486# To avoid any implicit rule to kick in, define an empty command. 487scripts/basic/%: scripts_basic ; 488 489PHONY += outputmakefile 490# outputmakefile generates a Makefile in the output directory, if using a 491# separate output directory. This allows convenient use of make in the 492# output directory. 493outputmakefile: 494ifneq ($(KBUILD_SRC),) 495 $(Q)ln -fsn $(srctree) source 496 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 497 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 498endif 499 500# To make sure we do not include .config for any of the *config targets 501# catch them early, and hand them over to scripts/kconfig/Makefile 502# It is allowed to specify more targets when calling make, including 503# mixing *config targets and build targets. 504# For example 'make oldconfig all'. 505# Detect when mixed targets is specified, and make a second invocation 506# of make so .config is not included in this case either (for *config). 507 508version_h := include/generated/version_autogenerated.h 509timestamp_h := include/generated/timestamp_autogenerated.h 510defaultenv_h := include/generated/defaultenv_autogenerated.h 511dt_h := include/generated/dt.h 512 513no-dot-config-targets := clean clobber mrproper distclean \ 514 help %docs check% coccicheck \ 515 ubootversion backup tests check qcheck tcheck 516 517config-targets := 0 518mixed-targets := 0 519dot-config := 1 520 521ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 522 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 523 dot-config := 0 524 endif 525endif 526 527ifeq ($(KBUILD_EXTMOD),) 528 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 529 config-targets := 1 530 ifneq ($(words $(MAKECMDGOALS)),1) 531 mixed-targets := 1 532 endif 533 endif 534endif 535 536ifeq ($(mixed-targets),1) 537# =========================================================================== 538# We're called with mixed targets (*config and build targets). 539# Handle them one by one. 540 541PHONY += $(MAKECMDGOALS) __build_one_by_one 542 543$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 544 @: 545 546__build_one_by_one: 547 $(Q)set -e; \ 548 for i in $(MAKECMDGOALS); do \ 549 $(MAKE) -f $(srctree)/Makefile $$i; \ 550 done 551 552else 553ifeq ($(config-targets),1) 554# =========================================================================== 555# *config targets only - make sure prerequisites are updated, and descend 556# in scripts/kconfig to make the *config target 557 558KBUILD_DEFCONFIG := sandbox_defconfig 559export KBUILD_DEFCONFIG KBUILD_KCONFIG 560 561config: scripts_basic outputmakefile FORCE 562 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 563 564%config: scripts_basic outputmakefile FORCE 565 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 566 567else 568# =========================================================================== 569# Build targets only - this includes vmlinux, arch specific targets, clean 570# targets and others. In general all targets except *config targets. 571 572# Additional helpers built in scripts/ 573# Carefully list dependencies so we do not try to build scripts twice 574# in parallel 575PHONY += scripts 576scripts: scripts_basic include/config/auto.conf 577 $(Q)$(MAKE) $(build)=$(@) 578 579ifeq ($(dot-config),1) 580# Read in config 581-include include/config/auto.conf 582 583# Read in dependencies to all Kconfig* files, make sure to run 584# oldconfig if changes are detected. 585-include include/config/auto.conf.cmd 586 587# To avoid any implicit rule to kick in, define an empty command 588$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 589 590# If .config is newer than include/config/auto.conf, someone tinkered 591# with it and forgot to run make oldconfig. 592# if auto.conf.cmd is missing then we are probably in a cleaned tree so 593# we execute the config step to be sure to catch updated Kconfig files 594include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 595 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 596 @# If the following part fails, include/config/auto.conf should be 597 @# deleted so "make silentoldconfig" will be re-run on the next build. 598 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 599 { rm -f include/config/auto.conf; false; } 600 @# include/config.h has been updated after "make silentoldconfig". 601 @# We need to touch include/config/auto.conf so it gets newer 602 @# than include/config.h. 603 @# Otherwise, 'make silentoldconfig' would be invoked twice. 604 $(Q)touch include/config/auto.conf 605 606u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 607 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 608 609-include include/autoconf.mk 610-include include/autoconf.mk.dep 611 612# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 613# is up-to-date. When we switch to a different board configuration, old CONFIG 614# macros are still remaining in include/config/auto.conf. Without the following 615# gimmick, wrong config.mk would be included leading nasty warnings/errors. 616ifneq ($(wildcard $(KCONFIG_CONFIG)),) 617ifneq ($(wildcard include/config/auto.conf),) 618autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 619 include/config/auto.conf) 620ifeq ($(autoconf_is_old),) 621include config.mk 622include arch/$(ARCH)/Makefile 623endif 624endif 625endif 626 627# These are set by the arch-specific config.mk. Make sure they are exported 628# so they can be used when building an EFI application. 629export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 630export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 631export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 632export CFLAGS_EFI # Compiler flags to add when building EFI app 633export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 634export EFI_TARGET # binutils target if EFI is natively supported 635 636# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 637# that (or fail if absent). Otherwise, search for a linker script in a 638# standard location. 639 640ifndef LDSCRIPT 641 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 642 ifdef CONFIG_SYS_LDSCRIPT 643 # need to strip off double quotes 644 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 645 endif 646endif 647 648# If there is no specified link script, we look in a number of places for it 649ifndef LDSCRIPT 650 ifeq ($(wildcard $(LDSCRIPT)),) 651 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 652 endif 653 ifeq ($(wildcard $(LDSCRIPT)),) 654 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 655 endif 656 ifeq ($(wildcard $(LDSCRIPT)),) 657 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 658 endif 659endif 660 661else 662# Dummy target needed, because used as prerequisite 663include/config/auto.conf: ; 664endif # $(dot-config) 665 666# 667# Xtensa linker script cannot be preprocessed with -ansi because of 668# preprocessor operations on strings that don't make C identifiers. 669# 670ifeq ($(CONFIG_XTENSA),) 671LDPPFLAGS += -ansi 672endif 673 674ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 675KBUILD_CFLAGS += -Os 676else 677KBUILD_CFLAGS += -O2 678endif 679 680KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 681KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 682 683# disable stringop warnings in gcc 8+ 684KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 685 686# Enabled with W=2, disabled by default as noisy 687KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 688 689# change __FILE__ to the relative path from the srctree 690KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 691 692KBUILD_CFLAGS += -g 693# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 694# option to the assembler. 695KBUILD_AFLAGS += -g 696 697# Report stack usage if supported 698# ARC tools based on GCC 7.1 has an issue with stack usage 699# with naked functions, see commit message for more details 700ifndef CONFIG_ARC 701ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 702 KBUILD_CFLAGS += -fstack-usage 703endif 704endif 705 706KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 707KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 708 709ifeq ($(cc-name),clang) 710KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 711KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 712KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 713KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 714# Quiet clang warning: comparison of unsigned expression < 0 is always false 715KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 716# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 717# source of a reference will be _MergedGlobals and not on of the whitelisted names. 718# See modpost pattern 2 719KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 720KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 721else 722 723# These warnings generated too much noise in a regular build. 724# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 725KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 726endif 727 728# Prohibit date/time macros, which would make the build non-deterministic 729KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 730 731include scripts/Makefile.extrawarn 732 733# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 734KBUILD_CPPFLAGS += $(KCPPFLAGS) 735KBUILD_AFLAGS += $(KAFLAGS) 736KBUILD_CFLAGS += $(KCFLAGS) 737 738KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 739 740# Use UBOOTINCLUDE when you must reference the include/ directory. 741# Needed to be compatible with the O= option 742UBOOTINCLUDE := \ 743 -Iinclude \ 744 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 745 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 746 $(if $(CONFIG_HAS_THUMB2), \ 747 $(if $(CONFIG_CPU_V7M), \ 748 -I$(srctree)/arch/arm/thumb1/include), \ 749 -I$(srctree)/arch/arm/thumb1/include)) \ 750 -I$(srctree)/arch/$(ARCH)/include \ 751 -include $(srctree)/include/linux/kconfig.h 752 753NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 754 755# FIX ME 756cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 757 $(NOSTDINC_FLAGS) 758c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 759 760######################################################################### 761# U-Boot objects....order is important (i.e. start must be first) 762 763HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 764 765libs-y += lib/ 766libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 767libs-$(CONFIG_OF_EMBED) += dts/ 768libs-y += fs/ 769libs-y += net/ 770libs-y += disk/ 771libs-y += drivers/ 772libs-y += drivers/dma/ 773libs-y += drivers/gpio/ 774libs-y += drivers/i2c/ 775libs-y += drivers/net/ 776libs-y += drivers/net/phy/ 777libs-y += drivers/power/ \ 778 drivers/power/domain/ \ 779 drivers/power/fuel_gauge/ \ 780 drivers/power/mfd/ \ 781 drivers/power/pmic/ \ 782 drivers/power/battery/ \ 783 drivers/power/regulator/ 784libs-y += drivers/spi/ 785libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 786libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 787libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 788libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 789libs-y += drivers/serial/ 790libs-y += drivers/usb/cdns3/ 791libs-y += drivers/usb/dwc3/ 792libs-y += drivers/usb/common/ 793libs-y += drivers/usb/emul/ 794libs-y += drivers/usb/eth/ 795libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 796libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 797libs-y += drivers/usb/host/ 798libs-y += drivers/usb/musb/ 799libs-y += drivers/usb/musb-new/ 800libs-y += drivers/usb/phy/ 801libs-y += drivers/usb/ulpi/ 802libs-y += cmd/ 803libs-y += common/ 804libs-y += env/ 805libs-$(CONFIG_API) += api/ 806ifdef CONFIG_POST 807libs-y += post/ 808endif 809libs-$(CONFIG_UNIT_TEST) += test/ test/dm/ 810libs-$(CONFIG_UT_ENV) += test/env/ 811libs-$(CONFIG_UT_OPTEE) += test/optee/ 812libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 813 814libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 815 816libs-y := $(sort $(libs-y)) 817 818u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 819 820u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 821 822libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 823 824u-boot-init := $(head-y) 825u-boot-main := $(libs-y) 826 827 828# Add GCC lib 829ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 830PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 831else 832PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 833endif 834PLATFORM_LIBS += $(PLATFORM_LIBGCC) 835 836ifdef CONFIG_CC_COVERAGE 837KBUILD_CFLAGS += --coverage 838PLATFORM_LIBGCC += -lgcov 839endif 840 841export PLATFORM_LIBS 842export PLATFORM_LIBGCC 843 844# Special flags for CPP when processing the linker script. 845# Pass the version down so we can handle backwards compatibility 846# on the fly. 847LDPPFLAGS += \ 848 -include $(srctree)/include/u-boot/u-boot.lds.h \ 849 -DCPUDIR=$(CPUDIR) \ 850 $(shell $(LD) --version | \ 851 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 852 853######################################################################### 854######################################################################### 855 856ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 857BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 858else 859BOARD_SIZE_CHECK = 860endif 861 862ifneq ($(CONFIG_SPL_SIZE_LIMIT),0) 863SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 864else 865SPL_SIZE_CHECK = 866endif 867 868ifneq ($(CONFIG_TPL_SIZE_LIMIT),0) 869TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 870else 871TPL_SIZE_CHECK = 872endif 873 874# Statically apply RELA-style relocations (currently arm64 only) 875# This is useful for arm64 where static relocation needs to be performed on 876# the raw binary, but certain simulators only accept an ELF file (but don't 877# do the relocation). 878ifneq ($(CONFIG_STATIC_RELA),) 879# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 880quiet_cmd_static_rela = RELOC $@ 881cmd_static_rela = \ 882 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 883 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 884 tools/relocate-rela $(3) $(4) $$start $$end 885else 886quiet_cmd_static_rela = 887cmd_static_rela = 888endif 889 890# Always append INPUTS so that arch config.mk's can add custom ones 891INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 892 893INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 894ifeq ($(CONFIG_SPL_FSL_PBL),y) 895INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 896else 897ifneq ($(CONFIG_NXP_ESBC), y) 898# For Secure Boot The Image needs to be signed and Header must also 899# be included. So The image has to be built explicitly 900INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 901endif 902endif 903INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 904ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 905INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 906else 907ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 908INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 909else 910INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 911endif 912endif 913INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 914INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb 915ifeq ($(CONFIG_SPL_FRAMEWORK),y) 916INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 917endif 918INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 919ifneq ($(CONFIG_SPL_TARGET),) 920INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 921endif 922INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 923INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 924INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 925 926# Build a combined spl + u-boot image for sunxi 927ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_ARM64)$(CONFIG_SPL),yyy) 928INPUTS-y += u-boot-sunxi-with-spl.bin 929endif 930 931# Generate this input file for binman 932ifeq ($(CONFIG_SPL),) 933INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 934endif 935 936# Add optional build target if defined in board/cpu/soc headers 937ifneq ($(CONFIG_BUILD_TARGET),) 938INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 939endif 940 941ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 942INPUTS-y += init_sp_bss_offset_check 943endif 944 945ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 946INPUTS-y += u-boot-with-dtb.bin 947endif 948 949ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 950# On ARM64 this target is produced by binman so we don't need this dep 951ifeq ($(CONFIG_ARM64),y) 952ifeq ($(CONFIG_SPL),y) 953# TODO: Get binman to generate this too 954INPUTS-y += u-boot-rockchip.bin 955endif 956else 957ifeq ($(CONFIG_SPL),y) 958# Generate these inputs for binman which will create the output files 959INPUTS-y += idbloader.img u-boot.img 960endif 961endif 962endif 963 964INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 965 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 966 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 967 968LDFLAGS_u-boot += $(LDFLAGS_FINAL) 969 970# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 971LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 972 973ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 974LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 975endif 976 977# insure the checker run with the right endianness 978CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 979 980# the checker needs the correct machine size 981CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 982 983# Normally we fill empty space with 0xff 984quiet_cmd_objcopy = OBJCOPY $@ 985cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 986 $(OBJCOPYFLAGS_$(@F)) $< $@ 987 988# Provide a version which does not do this, for use by EFI 989quiet_cmd_zobjcopy = OBJCOPY $@ 990cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 991 992quiet_cmd_efipayload = OBJCOPY $@ 993cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 994 995MKIMAGEOUTPUT ?= /dev/null 996 997quiet_cmd_mkimage = MKIMAGE $@ 998cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 999 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1000
1001quiet_cmd_mkfitimage = MKIMAGE $@ 1002cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1003 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1004 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1005 1006quiet_cmd_cat = CAT $@ 1007cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1008 1009append = cat $(filter-out $< $(PHONY), $^) >> $@ 1010 1011quiet_cmd_pad_cat = CAT $@ 1012cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@ 1013 1014quiet_cmd_lzma = LZMA $@ 1015cmd_lzma = lzma -c -z -k -9 $< > $@ 1016 1017cfg: u-boot.cfg 1018 1019quiet_cmd_cfgcheck = CFGCHK $2 1020cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 1021 $(srctree)/scripts/config_whitelist.txt $(srctree) 1022 1023PHONY += inputs 1024inputs: $(INPUTS-y) 1025 1026all: .binman_stamp inputs 1027# Hack for sunxi which doesn't have a proper binman definition for 1028# 64-bit boards 1029ifneq ($(CONFIG_ARCH_SUNXI)$(CONFIG_ARM64),yy) 1030ifeq ($(CONFIG_BINMAN),y) 1031 $(call if_changed,binman) 1032endif 1033endif 1034 1035# Timestamp file to make sure that binman always runs 1036.binman_stamp: FORCE 1037 @touch $@ 1038 1039ifeq ($(CONFIG_DEPRECATED),y) 1040 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1041ifeq ($(CONFIG_SPI),y) 1042ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy) 1043 $(warning "The relevant config item with associated code will remove in v2019.07 release.") 1044endif 1045endif 1046endif 1047ifneq ($(CONFIG_DM),y) 1048 @echo >&2 "===================== WARNING ======================" 1049 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be" 1050 @echo >&2 "compulsory starting with the v2020.01 release." 1051 @echo >&2 "Failure to update may result in board removal." 1052 @echo >&2 "See doc/driver-model/migration.rst for more info." 1053 @echo >&2 "====================================================" 1054endif 1055ifeq ($(CONFIG_MMC),y) 1056ifneq ($(CONFIG_DM_MMC)$(CONFIG_BLK),yy) 1057 @echo >&2 "===================== WARNING ======================" 1058 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update" 1059 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release." 1060 @echo >&2 "Failure to update by the deadline may result in board removal." 1061 @echo >&2 "See doc/driver-model/migration.rst for more info." 1062 @echo >&2 "====================================================" 1063endif 1064endif 1065ifeq ($(CONFIG_USB),y) 1066ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy) 1067 @echo >&2 "===================== WARNING ======================" 1068 @echo >&2 "This board does not use CONFIG_DM_USB. Please update" 1069 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release." 1070 @echo >&2 "Failure to update by the deadline may result in board removal." 1071 @echo >&2 "See doc/driver-model/migration.rst for more info." 1072 @echo >&2 "====================================================" 1073endif 1074endif 1075ifeq ($(CONFIG_MVSATA_IDE),y) 1076 @echo >&2 "===================== WARNING ======================" 1077 @echo >&2 "This board does use CONFIG_MVSATA_IDE which is not" 1078 @echo >&2 "ported to driver-model (DM) yet. Please update the storage" 1079 @echo >&2 "controller driver to use CONFIG_AHCI before the v2019.07" 1080 @echo >&2 "release." 1081 @echo >&2 "Failure to update by the deadline may result in board removal." 1082 @echo >&2 "See doc/driver-model/migration.rst for more info." 1083 @echo >&2 "====================================================" 1084endif 1085ifeq ($(CONFIG_LIBATA),y) 1086ifneq ($(CONFIG_AHCI),y) 1087 @echo >&2 "===================== WARNING ======================" 1088 @echo >&2 "This board does use CONFIG_LIBATA but has CONFIG_AHCI not" 1089 @echo >&2 "enabled. Please update the storage controller driver to use" 1090 @echo >&2 "CONFIG_AHCI before the v2019.07 release." 1091 @echo >&2 "Failure to update by the deadline may result in board removal." 1092 @echo >&2 "See doc/driver-model/migration.rst for more info." 1093 @echo >&2 "====================================================" 1094endif 1095endif 1096ifeq ($(CONFIG_PCI),y) 1097ifneq ($(CONFIG_DM_PCI),y) 1098 @echo >&2 "===================== WARNING ======================" 1099 @echo >&2 "This board does not use CONFIG_DM_PCI Please update" 1100 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release." 1101 @echo >&2 "Failure to update by the deadline may result in board removal." 1102 @echo >&2 "See doc/driver-model/migration.rst for more info." 1103 @echo >&2 "====================================================" 1104endif 1105endif 1106ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),) 1107ifneq ($(CONFIG_DM_VIDEO),y) 1108 @echo >&2 "===================== WARNING ======================" 1109 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update" 1110 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release." 1111 @echo >&2 "Failure to update by the deadline may result in board removal." 1112 @echo >&2 "See doc/driver-model/migration.rst for more info." 1113 @echo >&2 "====================================================" 1114endif 1115endif 1116ifeq ($(CONFIG_OF_EMBED),y) 1117 @echo >&2 "===================== WARNING ======================" 1118 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1119 @echo >&2 "be used for debugging purposes. Please use" 1120 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1121 @echo >&2 "See doc/README.fdt-control for more info." 1122 @echo >&2 "====================================================" 1123endif 1124ifeq ($(CONFIG_SPI_FLASH),y) 1125ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy) 1126 @echo >&2 "===================== WARNING ======================" 1127 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update" 1128 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release." 1129 @echo >&2 "Failure to update by the deadline may result in board removal." 1130 @echo >&2 "See doc/driver-model/migration.rst for more info." 1131 @echo >&2 "====================================================" 1132endif 1133endif 1134ifneq ($(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG),) 1135ifneq ($(CONFIG_WDT),y) 1136 @echo >&2 "===================== WARNING ======================" 1137 @echo >&2 "This board does not use CONFIG_WDT (DM watchdog support)." 1138 @echo >&2 "Please update the board to use CONFIG_WDT before the" 1139 @echo >&2 "v2019.10 release." 1140 @echo >&2 "Failure to update by the deadline may result in board removal." 1141 @echo >&2 "See doc/driver-model/migration.rst for more info." 1142 @echo >&2 "====================================================" 1143endif 1144endif 1145ifneq ($(CONFIG_NET),) 1146ifneq ($(CONFIG_DM_ETH),y) 1147 @echo >&2 "===================== WARNING ======================" 1148 @echo >&2 "This board does not use CONFIG_DM_ETH (Driver Model" 1149 @echo >&2 "for Ethernet drivers). Please update the board to use" 1150 @echo >&2 "CONFIG_DM_ETH before the v2020.07 release. Failure to" 1151 @echo >&2 "update by the deadline may result in board removal." 1152 @echo >&2 "See doc/driver-model/migration.rst for more info." 1153 @echo >&2 "====================================================" 1154endif 1155endif 1156ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1157 @echo >&2 "===================== WARNING ======================" 1158 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1159 @echo >&2 "to binman instead, to avoid the proliferation of" 1160 @echo >&2 "arch-specific scripts with no tests." 1161 @echo >&2 "====================================================" 1162endif 1163 @# Check that this build does not use CONFIG options that we do not 1164 @# know about unless they are in Kconfig. All the existing CONFIG 1165 @# options are whitelisted, so new ones should not be added. 1166 $(call cmd,cfgcheck,u-boot.cfg) 1167 1168PHONY += dtbs 1169dtbs: dts/dt.dtb 1170 @: 1171dts/dt.dtb: u-boot 1172 $(Q)$(MAKE) $(build)=dts dtbs 1173 1174quiet_cmd_copy = COPY $@ 1175 cmd_copy = cp $< $@ 1176 1177ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1178 1179ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1180FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1181else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1182FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1183else 1184FINAL_DTB_CONTAINER = fit-dtb.blob 1185endif 1186 1187fit-dtb.blob.gz: fit-dtb.blob 1188 @gzip -kf9 $< > $@ 1189 1190fit-dtb.blob.lzo: fit-dtb.blob 1191 @lzop -f9 $< > $@ 1192 1193fit-dtb.blob: dts/dt.dtb FORCE 1194 $(call if_changed,mkimage) 1195ifneq ($(SOURCE_DATE_EPOCH),) 1196 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1197 chmod 0600 fit-dtb.blob 1198endif 1199 1200MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1201 -a 0 -e 0 -E \ 1202 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1203 1204ifneq ($(EXT_DTB),) 1205u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1206 $(call if_changed,cat) 1207else 1208u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1209 $(call if_changed,cat) 1210endif 1211 1212u-boot.bin: u-boot-fit-dtb.bin FORCE 1213 $(call if_changed,copy) 1214 1215u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1216 $(call if_changed,cat) 1217 1218else ifeq ($(CONFIG_OF_SEPARATE),y) 1219u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1220 $(call if_changed,cat) 1221 1222u-boot.bin: u-boot-dtb.bin FORCE 1223 $(call if_changed,copy) 1224else 1225u-boot.bin: u-boot-nodtb.bin FORCE 1226 $(call if_changed,copy) 1227endif 1228 1229# we call Makefile in arch/arm/mach-imx which 1230# has targets which are dependent on targets defined 1231# here. make could not resolve them and we must ensure 1232# that they are finished before calling imx targets 1233ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1234IMX_DEPS = u-boot-fit-dtb.bin 1235endif 1236 1237%.imx: $(IMX_DEPS) %.bin 1238 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1239 $(BOARD_SIZE_CHECK) 1240 1241%.vyb: %.imx 1242 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1243 1244quiet_cmd_copy = COPY $@ 1245 cmd_copy = cp $< $@ 1246 1247u-boot.dtb: dts/dt.dtb 1248 $(call cmd,copy) 1249 1250OBJCOPYFLAGS_u-boot.hex := -O ihex 1251 1252OBJCOPYFLAGS_u-boot.srec := -O srec 1253 1254u-boot.hex u-boot.srec: u-boot FORCE 1255 $(call if_changed,objcopy) 1256 1257OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1258 1259u-boot-elf.srec: u-boot.elf FORCE 1260 $(call if_changed,objcopy) 1261 1262OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1263 1264spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1265 $(call if_changed,objcopy) 1266 1267%.scif: %.srec 1268 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1269 1270OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1271 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1272 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1273 1274OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex) 1275 1276spl/u-boot-spl.hex: spl/u-boot-spl FORCE 1277 $(call if_changed,objcopy) 1278 1279binary_size_check: u-boot-nodtb.bin FORCE 1280 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1281 map_size=$(shell cat u-boot.map | \ 1282 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1283 | sed 's/0X//g' \ 1284 | bc); \ 1285 if [ "" != "$$map_size" ]; then \ 1286 if test $$map_size -ne $$file_size; then \ 1287 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1288 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1289 exit 1; \ 1290 fi \ 1291 fi 1292 1293ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1294ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1295subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1296else 1297subtract_sys_malloc_f_len = true 1298endif 1299# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1300# so low that the DTB could probably use 90%+ of the available space, for 1301# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1302# safe for now and tweak this later if space becomes tight. 1303# A rejected alternative would be to check that some absolute minimum stack 1304# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1305# deliberately build-specific, to take account of build-to-build stack usage 1306# differences due to different feature sets, there is no common absolute value 1307# to check against. 1308init_sp_bss_offset_check: u-boot.dtb FORCE 1309 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1310 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1311 $(subtract_sys_malloc_f_len) ; \ 1312 quarter_space=$$(($${space} / 4)) ; \ 1313 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1314 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1315 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1316 exit 1 ; \ 1317 fi 1318endif 1319 1320u-boot-nodtb.bin: u-boot FORCE 1321 $(call if_changed,objcopy) 1322 $(call cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) 1323 $(BOARD_SIZE_CHECK) 1324 1325u-boot.ldr: u-boot 1326 $(CREATE_LDR_ENV) 1327 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1328 $(BOARD_SIZE_CHECK) 1329 1330# binman 1331# --------------------------------------------------------------------------- 1332# Use 'make BINMAN_DEBUG=1' to enable debugging 1333quiet_cmd_binman = BINMAN $@ 1334cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1335 --toolpath $(objtree)/tools \ 1336 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1337 build -u -d u-boot.dtb -O . \ 1338 $(if $(BUILD_ROM),,-m --allow-missing) \ 1339 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1340 $(BINMAN_$(@F)) 1341 1342OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1343 1344OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1345 1346u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1347 $(call if_changed,objcopy) 1348 1349# 1350# U-Boot entry point, needed for booting of full-blown U-Boot 1351# from the SPL U-Boot version. 1352# 1353ifndef CONFIG_SYS_UBOOT_START 1354CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE) 1355endif 1356 1357# Boards with more complex image requirements can provide an .its source file 1358# or a generator script 1359# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1360# binman instead. 1361ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1362U_BOOT_ITS := u-boot.its 1363$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1364 $(call if_changed,copy) 1365else 1366ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1367U_BOOT_ITS := u-boot.its 1368ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1369U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1370endif 1371ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1372U_BOOT_ITS_DEPS += u-boot 1373endif 1374$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1375 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1376 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1377endif 1378endif 1379 1380ifdef CONFIG_SPL_LOAD_FIT 1381MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1382 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1383 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1384 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1385 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1386 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1387else 1388MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1389 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1390 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1391MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1392 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1393 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1394u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1395endif 1396 1397MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1398 1399# Some boards have the kwbimage.cfg file written in advance, while some 1400# other boards generate it on the fly during the build in the build tree. 1401# Let's check if the file exists in the build tree first, otherwise we 1402# fall back to use the one in the source tree. 1403KWD_CONFIG_FILE = $(shell \ 1404 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1405 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1406 else \ 1407 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1408 fi) 1409 1410MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1411 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1412 1413MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1414 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1415 $(if $(KEYDIR),-k $(KEYDIR)) 1416 1417MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1418 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1419 1420ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1421UBOOT_BIN := u-boot-with-dtb.bin 1422else 1423UBOOT_BIN := u-boot.bin 1424endif 1425 1426MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1427 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1428 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1429 1430u-boot.bin.lzma: u-boot.bin FORCE 1431 $(call if_changed,lzma) 1432 1433u-boot-lzma.img: u-boot.bin.lzma FORCE 1434 $(call if_changed,mkimage) 1435 1436u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1437 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1438 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ 1439 ,$(UBOOT_BIN)) FORCE 1440 $(call if_changed,mkimage) 1441 $(BOARD_SIZE_CHECK) 1442 1443ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1444MKIMAGEFLAGS_u-boot.itb = 1445else 1446MKIMAGEFLAGS_u-boot.itb = -E 1447endif 1448 1449u-boot.itb: u-boot-nodtb.bin \ 1450 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ 1451 $(U_BOOT_ITS) FORCE 1452 $(call if_changed,mkfitimage) 1453 $(BOARD_SIZE_CHECK) 1454 1455u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE 1456 $(call if_changed,mkimage) 1457 1458u-boot.sha1: u-boot.bin 1459 tools/ubsha1 u-boot.bin 1460 1461u-boot.dis: u-boot 1462 $(OBJDUMP) -d $< > $@ 1463 1464ifneq ($(CONFIG_SPL_PAYLOAD),) 1465SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1466else 1467SPL_PAYLOAD := u-boot.bin 1468endif 1469 1470SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1471 1472OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1473 --pad-to=$(CONFIG_SPL_PAD_TO) 1474u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1475 $(call if_changed,pad_cat) 1476 1477ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 1478 1479# TPL + SPL 1480ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy) 1481MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd 1482tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE 1483 $(call if_changed,mkimage) 1484idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE 1485 $(call if_changed,cat) 1486else 1487MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd 1488idbloader.img: spl/u-boot-spl.bin FORCE 1489 $(call if_changed,mkimage) 1490endif 1491 1492ifeq ($(CONFIG_ARM64),y) 1493OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \ 1494 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1495u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE 1496 $(call if_changed,pad_cat) 1497endif # CONFIG_ARM64 1498 1499endif # CONFIG_ARCH_ROCKCHIP 1500 1501ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1502MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1503 1504lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1505 $(call if_changed,mkimage) 1506 1507OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1508 1509lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1510 $(call if_changed,objcopy) 1511 1512OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1513 1514lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1515 $(call if_changed,objcopy) 1516 1517lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1518 $(call if_changed,cat) 1519 1520endif 1521 1522OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1523 --pad-to=$(CONFIG_TPL_PAD_TO) 1524tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1525 $(call if_changed,pad_cat) 1526 1527SPL: spl/u-boot-spl.bin FORCE 1528 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1529 1530ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1531ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1532u-boot.cnt: u-boot.bin FORCE 1533 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1534 1535flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1536 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1537else 1538flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1539 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1540endif 1541endif 1542 1543u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE 1544 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1545 1546MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1547 1548u-boot.ubl: u-boot-with-spl.bin FORCE 1549 $(call if_changed,mkimage) 1550 1551MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1552 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1553 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1554spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1555 $(call if_changed,mkimage) 1556 1557OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1558u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1559 $(call if_changed,pad_cat) 1560 1561u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1562 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1563u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1564 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1565 1566# On x600 (SPEAr600) U-Boot is appended to U-Boot SPL. 1567# Both images are created using mkimage (crc etc), so that the ROM 1568# bootloader can check its integrity. Padding needs to be done to the 1569# SPL image (with mkimage header) and not the binary. Otherwise the resulting image 1570# which is loaded/copied by the ROM bootloader to SRAM doesn't fit. 1571# The resulting image containing both U-Boot images is called u-boot.spr 1572MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1573 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1574spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1575 $(call if_changed,mkimage) 1576 1577OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1578 --gap-fill=0xff 1579u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE 1580 $(call if_changed,pad_cat) 1581 1582ifneq ($(CONFIG_ARCH_SOCFPGA),) 1583quiet_cmd_socboot = SOCBOOT $@ 1584cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1585 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1586 u-boot.img > $@ || rm -f $@ 1587u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1588 $(call if_changed,socboot) 1589 1590quiet_cmd_socnandboot = SOCNANDBOOT $@ 1591cmd_socnandboot = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1592 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1593 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1594 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1595 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1596 u-boot.img > $@ || rm -f $@ spl/u-boot-spl.pad 1597u-boot-with-nand-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE 1598 $(call if_changed,socnandboot) 1599 1600endif 1601 1602ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1603u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1604 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1605 $(call if_changed,binman) 1606 1607ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1608OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1609u-boot-br.bin: u-boot FORCE 1610 $(call if_changed,objcopy) 1611endif 1612endif 1613 1614quiet_cmd_ldr = LD $@ 1615cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1616 $(filter-out FORCE,$^) -o $@ 1617 1618ifdef CONFIG_X86 1619OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1620u-boot-x86-start16.bin: u-boot FORCE 1621 $(call if_changed,objcopy) 1622 1623OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1624u-boot-x86-reset16.bin: u-boot FORCE 1625 $(call if_changed,objcopy) 1626 1627endif # CONFIG_X86 1628 1629ifneq ($(CONFIG_ARCH_SUNXI),) 1630ifeq ($(CONFIG_ARM64),y) 1631u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE 1632 $(call if_changed,cat) 1633endif 1634endif 1635 1636OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1637u-boot-app.efi: u-boot FORCE 1638 $(call if_changed,zobjcopy) 1639 1640u-boot.bin.o: u-boot.bin FORCE 1641 $(call if_changed,efipayload) 1642 1643u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1644 $(call if_changed_dep,cpp_lds) 1645 1646# Rule to link the EFI payload which contains a stub and a U-Boot binary 1647quiet_cmd_u-boot_payload ?= LD $@ 1648 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1649 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1650 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1651 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1652 1653u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1654 $(call if_changed,u-boot_payload) 1655 1656OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1657u-boot-payload.efi: u-boot-payload FORCE 1658 $(call if_changed,zobjcopy) 1659 1660u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1661 $(call if_changed,cat) 1662 1663#Add a target to create boot binary having SPL binary in PBI format 1664#concatenated with u-boot binary. It is need by PowerPC SoC having 1665#internal SRAM <= 512KB. 1666MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1667 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1668 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1669 1670spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1671 $(call if_changed,mkimage) 1672 1673ifeq ($(ARCH),arm) 1674UBOOT_BINLOAD := u-boot.img 1675else 1676ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1677UBOOT_BINLOAD := u-boot-with-dtb.bin 1678else 1679UBOOT_BINLOAD := u-boot.bin 1680endif 1681endif 1682 1683OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1684 --gap-fill=0xff 1685 1686u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1687 $(call if_changed,pad_cat) 1688 1689# PPC4xx needs the SPL at the end of the image, since the reset vector 1690# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1691# and need to introduce a new build target with the full blown U-Boot 1692# at the start padded up to the start of the SPL image. And then concat 1693# the SPL image to the end. 1694 1695OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1696 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1697u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1698 $(call if_changed,pad_cat) 1699 1700quiet_cmd_u-boot-elf ?= LD $@ 1701 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1702 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1703 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1704u-boot.elf: u-boot.bin u-boot-elf.lds 1705 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1706 $(call if_changed,u-boot-elf) 1707 1708u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1709 $(call if_changed_dep,cpp_lds) 1710 1711# MediaTek's ARM-based u-boot needs a header to contains its load address 1712# which is parsed by the BootROM. 1713# If the SPL build is enabled, the header will be added to the spl binary, 1714# and the spl binary and the u-boot.img will be combined into one file. 1715# Otherwise the header will be added to the u-boot.bin directly. 1716 1717ifeq ($(CONFIG_SPL),y) 1718spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1719else 1720MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1721 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1722 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1723 1724u-boot-mtk.bin: u-boot.bin FORCE 1725 $(call if_changed,mkimage) 1726endif 1727 1728quiet_cmd_endian_swap = SWAP $@ 1729 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1730 1731u-boot-swap.bin: u-boot.bin FORCE 1732 $(call if_changed,endian_swap) 1733 1734ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1735 1736# Rule to link u-boot 1737# May be overridden by arch/$(ARCH)/config.mk 1738quiet_cmd_u-boot__ ?= LD $@ 1739 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1740 -T u-boot.lds $(u-boot-init) \ 1741 --start-group $(u-boot-main) --end-group \ 1742 $(PLATFORM_LIBS) -Map u-boot.map; \ 1743 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1744 1745quiet_cmd_smap = GEN common/system_map.o 1746cmd_smap = \ 1747 smap=`$(call SYSTEM_MAP,u-boot) | \ 1748 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1749 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1750 -c $(srctree)/common/system_map.c -o common/system_map.o 1751 1752u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE 1753 +$(call if_changed,u-boot__) 1754ifeq ($(CONFIG_KALLSYMS),y) 1755 $(call cmd,smap) 1756 $(call cmd,u-boot__) common/system_map.o 1757endif 1758 1759ifeq ($(CONFIG_RISCV),y) 1760 @tools/prelink-riscv $@ 0 1761endif 1762 1763quiet_cmd_sym ?= SYM $@ 1764 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1765u-boot.sym: u-boot FORCE 1766 $(call if_changed,sym) 1767 1768# The actual objects are generated when descending, 1769# make sure no implicit rule kicks in 1770$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1771 1772# Handle descending into subdirectories listed in $(u-boot-dirs) 1773# Preset locale variables to speed up the build process. Limit locale 1774# tweaks to this spot to avoid wrong language settings when running 1775# make menuconfig etc. 1776# Error messages still appears in the original language 1777 1778PHONY += $(u-boot-dirs) 1779$(u-boot-dirs): prepare scripts 1780 $(Q)$(MAKE) $(build)=$@ 1781 1782tools: prepare 1783# The "tools" are needed early 1784$(filter-out tools, $(u-boot-dirs)): tools 1785# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1786# is "yes"), so compile examples after U-Boot is compiled. 1787examples: $(filter-out examples, $(u-boot-dirs)) 1788 1789define filechk_uboot.release 1790 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1791endef 1792 1793# Store (new) UBOOTRELEASE string in include/config/uboot.release 1794include/config/uboot.release: include/config/auto.conf FORCE 1795 $(call filechk,uboot.release) 1796 1797 1798# Things we need to do before we recursively start building the kernel 1799# or the modules are listed in "prepare". 1800# A multi level approach is used. prepareN is processed before prepareN-1. 1801# archprepare is used in arch Makefiles and when processed asm symlink, 1802# version.h and scripts_basic is processed / created. 1803 1804# Listed in dependency order 1805PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1806 1807# prepare3 is used to check if we are building in a separate output directory, 1808# and if so do: 1809# 1) Check that make has not been executed in the kernel src $(srctree) 1810prepare3: include/config/uboot.release 1811ifneq ($(KBUILD_SRC),) 1812 @$(kecho) ' Using $(srctree) as source for U-Boot' 1813 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1814 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1815 echo >&2 " in the '$(srctree)' directory.";\ 1816 /bin/false; \ 1817 fi; 1818endif 1819 1820# prepare2 creates a makefile if using a separate output directory 1821prepare2: prepare3 outputmakefile cfg 1822 1823prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \ 1824 include/config/auto.conf 1825ifeq ($(wildcard $(LDSCRIPT)),) 1826 @echo >&2 " Could not find linker script." 1827 @/bin/false 1828endif 1829 1830ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1831prepare1: $(defaultenv_h) 1832endif 1833 1834archprepare: prepare1 scripts_basic 1835 1836prepare0: archprepare FORCE 1837 $(Q)$(MAKE) $(build)=. 1838 1839# All the preparing.. 1840prepare: prepare0 1841 1842# Generate some files 1843# --------------------------------------------------------------------------- 1844 1845define filechk_version.h 1846 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1847 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1848 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1849 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1850endef 1851 1852# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1853# The BSD date on the other hand behaves different and would produce errors 1854# with the misused '-d' switch. Respect that and search a working date with 1855# well known pre- and suffixes for the GNU variant of date. 1856define filechk_timestamp.h 1857 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1858 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1859 DATE=""; \ 1860 for date in gdate date.gnu date; do \ 1861 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1862 done; \ 1863 if test -n "$${DATE}"; then \ 1864 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1865 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1866 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1867 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1868 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1869 else \ 1870 return 42; \ 1871 fi; \ 1872 else \ 1873 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1874 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1875 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1876 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \ 1877 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1878 fi) 1879endef 1880 1881define filechk_defaultenv.h 1882 (grep -v '^#' | \ 1883 grep -v '^$$' | \ 1884 tr '\n' '\0' | \ 1885 sed -e 's/\\\x0\s*//g' | \ 1886 xxd -i ; echo ", 0x00" ; ) 1887endef 1888 1889define filechk_dt.h 1890 (if test -n "$${DEVICE_TREE}"; then \ 1891 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 1892 else \ 1893 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 1894 fi) 1895endef 1896 1897$(version_h): include/config/uboot.release FORCE 1898 $(call filechk,version.h) 1899 1900$(timestamp_h): $(srctree)/Makefile FORCE 1901 $(call filechk,timestamp.h) 1902 1903$(dt_h): $(srctree)/Makefile FORCE 1904 $(call filechk,dt.h) 1905 1906$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1907 $(call filechk,defaultenv.h) 1908 1909# --------------------------------------------------------------------------- 1910quiet_cmd_cpp_lds = LDS $@ 1911cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1912 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1913 1914u-boot.lds: $(LDSCRIPT) prepare FORCE 1915 $(call if_changed_dep,cpp_lds) 1916 1917spl/u-boot-spl.bin: spl/u-boot-spl 1918 @: 1919 $(SPL_SIZE_CHECK) 1920 1921spl/u-boot-spl: tools prepare \ 1922 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 1923 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 1924 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 1925 1926spl/sunxi-spl.bin: spl/u-boot-spl 1927 @: 1928 1929spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 1930 @: 1931 1932spl/u-boot-spl.sfp: spl/u-boot-spl 1933 @: 1934 1935spl/boot.bin: spl/u-boot-spl 1936 @: 1937 1938tpl/u-boot-tpl.bin: tools prepare \ 1939 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 1940 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 1941 $(TPL_SIZE_CHECK) 1942 1943TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 1944 1945FIND := find 1946FINDFLAGS := -L 1947 1948tags ctags: 1949 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1950 -name '*.[chS]' -print` 1951 ln -s ctags tags 1952 1953etags: 1954 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 1955 -name '*.[chS]' -print` 1956cscope: 1957 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 1958 cscope.files 1959 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 1960 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 1961 mv cscope.files.no-symlinks cscope.files 1962 cscope -b -q -k 1963 1964SYSTEM_MAP = \ 1965 $(NM) $1 | \ 1966 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 1967 LC_ALL=C sort 1968System.map: u-boot 1969 @$(call SYSTEM_MAP,$<) > $@ 1970 1971######################################################################### 1972 1973# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 1974# R_AARCH64_RELATIVE (64-bit). 1975checkarmreloc: u-boot 1976 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 1977 grep R_A | sort -u`"; \ 1978 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 1979 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 1980 echo "$< contains unexpected relocations: $$RELOC"; \ 1981 false; \ 1982 fi 1983 1984tools/version.h: include/version.h 1985 $(Q)mkdir -p $(dir $@) 1986 $(call if_changed,copy) 1987 1988envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 1989 $(Q)$(MAKE) $(build)=tools/env 1990 1991tools-only: export TOOLS_ONLY=y 1992tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 1993 $(Q)$(MAKE) $(build)=tools 1994 1995tools-all: export HOST_TOOLS_ALL=y 1996tools-all: envtools tools ; 1997 1998cross_tools: export CROSS_BUILD_TOOLS=y 1999cross_tools: tools ; 2000
2001.PHONY : CHANGELOG 2002CHANGELOG: 2003 git log --no-merges U-Boot-1_1_5.. | \ 2004 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2005 2006######################################################################### 2007 2008### 2009# Cleaning is done on three levels. 2010# make clean Delete most generated files 2011# Leave enough to build external modules 2012# make mrproper Delete the current configuration, and all generated files 2013# make distclean Remove editor backup files, patch leftover files and the like 2014 2015# Directories & files removed with 'make clean' 2016CLEAN_DIRS += $(MODVERDIR) \ 2017 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 2018 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2019 2020CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \ 2021 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \ 2022 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2023 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2024 idbloader.img flash.bin flash.log defconfig 2025 2026# Directories & files removed with 'make mrproper' 2027MRPROPER_DIRS += include/config include/generated spl tpl \ 2028 .tmp_objdiff doc/output 2029MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2030 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2031 drivers/video/fonts/*.S 2032 2033# clean - Delete most, but leave enough to build external modules 2034# 2035clean: rm-dirs := $(CLEAN_DIRS) 2036clean: rm-files := $(CLEAN_FILES) 2037 2038clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2039 2040clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2041 2042PHONY += $(clean-dirs) clean archclean 2043$(clean-dirs): 2044 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2045 2046clean: $(clean-dirs) 2047 $(call cmd,rmdirs) 2048 $(call cmd,rmfiles) 2049 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2050 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2051 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2052 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2053 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2054 -o -name '*.asn1.[ch]' \ 2055 -o -name '*.symtypes' -o -name 'modules.order' \ 2056 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2057 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 2058 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2059 -type f -print | xargs rm -f 2060 2061# mrproper - Delete all generated files, including .config 2062# 2063mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2064mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2065mrproper-dirs := $(addprefix _mrproper_,scripts) 2066 2067PHONY += $(mrproper-dirs) mrproper archmrproper 2068$(mrproper-dirs): 2069 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2070 2071mrproper: clean $(mrproper-dirs) 2072 $(call cmd,rmdirs) 2073 $(call cmd,rmfiles) 2074 @rm -f arch/*/include/asm/arch 2075 2076# distclean 2077# 2078PHONY += distclean 2079 2080distclean: mrproper 2081 @find $(srctree) $(RCS_FIND_IGNORE) \ 2082 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2083 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2084 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2085 -o -name '*.pyc' \) \ 2086 -type f -print | xargs rm -f 2087 @rm -f boards.cfg CHANGELOG 2088 2089backup: 2090 F=`basename $(srctree)` ; cd .. ; \ 2091 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2092 2093help: 2094 @echo 'Cleaning targets:' 2095 @echo ' clean - Remove most generated files but keep the config' 2096 @echo ' mrproper - Remove all generated files + config + various backup files' 2097 @echo ' distclean - mrproper + remove editor backup and patch files' 2098 @echo '' 2099 @echo 'Configuration targets:' 2100 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2101 @echo '' 2102 @echo 'Test targets:' 2103 @echo '' 2104 @echo ' check - Run all automated tests that use sandbox' 2105 @echo ' qcheck - Run quick automated tests that use sandbox' 2106 @echo ' tcheck - Run quick automated tests on tools' 2107 @echo '' 2108 @echo 'Other generic targets:' 2109 @echo ' all - Build all necessary images depending on configuration' 2110 @echo ' tests - Build U-Boot for sandbox and run tests' 2111 @echo '* u-boot - Build the bare u-boot' 2112 @echo ' dir/ - Build all files in dir and below' 2113 @echo ' dir/file.[oisS] - Build specified target only' 2114 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2115 @echo ' (requires a recent binutils and recent build (System.map))' 2116 @echo ' tags/ctags - Generate ctags file for editors' 2117 @echo ' etags - Generate etags file for editors' 2118 @echo ' cscope - Generate cscope index' 2119 @echo ' ubootrelease - Output the release version string (use with make -s)' 2120 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2121 @echo " cfg - Don't build, just create the .cfg files" 2122 @echo " envtools - Build only the target-side environment tools" 2123 @echo '' 2124 @echo 'Static analysers' 2125 @echo ' checkstack - Generate a list of stack hogs' 2126 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2127 @echo '' 2128 @echo 'Documentation targets:' 2129 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2130 @echo '' 2131 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2132 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2133 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2134 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2135 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2136 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2137 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2138 @echo ' 1: warnings which may be relevant and do not occur too often' 2139 @echo ' 2: warnings which occur quite often but may still be relevant' 2140 @echo ' 3: more obscure warnings, can most likely be ignored' 2141 @echo ' Multiple levels can be combined with W=12 or W=123' 2142 @echo '' 2143 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2144 @echo 'For further info see the ./README file' 2145 2146tests check: 2147 $(srctree)/test/run 2148 2149qcheck: 2150 $(srctree)/test/run quick 2151 2152tcheck: 2153 $(srctree)/test/run tools 2154 2155# Documentation targets 2156# --------------------------------------------------------------------------- 2157DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2158 linkcheckdocs dochelp refcheckdocs 2159PHONY += $(DOC_TARGETS) 2160$(DOC_TARGETS): scripts_basic FORCE 2161 $(Q)$(MAKE) $(build)=doc $@ 2162 2163endif #ifeq ($(config-targets),1) 2164endif #ifeq ($(mixed-targets),1) 2165 2166PHONY += checkstack ubootrelease ubootversion 2167 2168checkstack: 2169 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2170 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2171 2172ubootrelease: 2173 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2174 2175ubootversion: 2176 @echo $(UBOOTVERSION) 2177 2178# Single targets 2179# --------------------------------------------------------------------------- 2180# Single targets are compatible with: 2181# - build with mixed source and output 2182# - build with separate output dir 'make O=...' 2183# - external modules 2184# 2185# target-dir => where to store outputfile 2186# build-dir => directory in kernel source tree to use 2187 2188ifeq ($(KBUILD_EXTMOD),) 2189 build-dir = $(patsubst %/,%,$(dir $@)) 2190 target-dir = $(dir $@) 2191else 2192 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2193 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2194 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2195endif 2196 2197%.s: %.c prepare scripts FORCE 2198 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2199%.i: %.c prepare scripts FORCE 2200 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2201%.o: %.c prepare scripts FORCE 2202 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2203%.lst: %.c prepare scripts FORCE 2204 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2205%.s: %.S prepare scripts FORCE 2206 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2207%.o: %.S prepare scripts FORCE 2208 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2209%.symtypes: %.c prepare scripts FORCE 2210 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2211 2212# Modules 2213/: prepare scripts FORCE 2214 $(cmd_crmodverdir) 2215 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2216 $(build)=$(build-dir) 2217%/: prepare scripts FORCE 2218 $(cmd_crmodverdir) 2219 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2220 $(build)=$(build-dir) 2221%.ko: prepare scripts FORCE 2222 $(cmd_crmodverdir) 2223 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2224 $(build)=$(build-dir) $(@:.ko=.o) 2225 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2226 2227quiet_cmd_genenv = GENENV $@ 2228cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \ 2229 sed --in-place -e 's/\x00/\x0A/g' $@ 2230 2231u-boot-initial-env: u-boot.bin 2232 $(call if_changed,genenv) 2233 2234# Consistency checks 2235# --------------------------------------------------------------------------- 2236 2237PHONY += coccicheck 2238 2239coccicheck: 2240 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2241 2242# FIXME Should go into a make.lib or something 2243# =========================================================================== 2244 2245quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2246 cmd_rmdirs = rm -rf $(rm-dirs) 2247 2248quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2249 cmd_rmfiles = rm -f $(rm-files) 2250 2251# read all saved command lines 2252 2253cmd_files := $(wildcard .*.cmd $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd)) 2254 2255ifneq ($(cmd_files),) 2256 $(cmd_files): ; # Do not try to update included dependency files 2257 include $(cmd_files) 2258endif 2259 2260endif # skip-makefile 2261 2262PHONY += FORCE 2263FORCE: 2264 2265# Declare the contents of the PHONY variable as phony. We keep that 2266# information in a variable so we can use it in if_changed and friends. 2267.PHONY: $(PHONY) 2268