1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2022 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# Do not use make's built-in rules and variables 16# (this increases performance and avoids hard-to-debug behaviour) 17MAKEFLAGS += -rR 18 19# Determine target architecture for the sandbox 20include include/host_arch.h 21ifeq ("", "$(CROSS_COMPILE)") 22 MK_ARCH="${shell uname -m}" 23else 24 MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^\s*\([^\/]*\/\)*\([^-]*\)-\S*/\2/p'}" 25endif 26unexport HOST_ARCH 27ifeq ("x86_64", $(MK_ARCH)) 28 export HOST_ARCH=$(HOST_ARCH_X86_64) 29else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686")) 30 export HOST_ARCH=$(HOST_ARCH_X86) 31else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l")) 32 export HOST_ARCH=$(HOST_ARCH_AARCH64) 33else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7l")) 34 export HOST_ARCH=$(HOST_ARCH_ARM) 35else ifeq ("riscv32", $(MK_ARCH)) 36 export HOST_ARCH=$(HOST_ARCH_RISCV32) 37else ifeq ("riscv64", $(MK_ARCH)) 38 export HOST_ARCH=$(HOST_ARCH_RISCV64) 39endif 40undefine MK_ARCH 41 42# Avoid funny character set dependencies 43unexport LC_ALL 44LC_COLLATE=C 45LC_NUMERIC=C 46export LC_COLLATE LC_NUMERIC 47 48# Avoid interference with shell env settings 49unexport GREP_OPTIONS 50 51# We are using a recursive build, so we need to do a little thinking 52# to get the ordering right. 53# 54# Most importantly: sub-Makefiles should only ever modify files in 55# their own directory. If in some directory we have a dependency on 56# a file in another dir (which doesn't happen often, but it's often 57# unavoidable when linking the built-in.o targets which finally 58# turn into vmlinux), we will call a sub make in that other dir, and 59# after that we are sure that everything which is in that other dir 60# is now up to date. 61# 62# The only cases where we need to modify files which have global 63# effects are thus separated out and done before the recursive 64# descending is started. They are now explicitly listed as the 65# prepare rule. 66 67# Beautify output 68# --------------------------------------------------------------------------- 69# 70# Normally, we echo the whole command before executing it. By making 71# that echo $($(quiet)$(cmd)), we now have the possibility to set 72# $(quiet) to choose other forms of output instead, e.g. 73# 74# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 75# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 76# 77# If $(quiet) is empty, the whole command will be printed. 78# If it is set to "quiet_", only the short version will be printed. 79# If it is set to "silent_", nothing will be printed at all, since 80# the variable $(silent_cmd_cc_o_c) doesn't exist. 81# 82# A simple variant is to prefix commands with $(Q) - that's useful 83# for commands that shall be hidden in non-verbose mode. 84# 85# $(Q)ln $@ :< 86# 87# If KBUILD_VERBOSE equals 0 then the above command will be hidden. 88# If KBUILD_VERBOSE equals 1 then the above command is displayed. 89# 90# To put more focus on warnings, be less verbose as default 91# Use 'make V=1' to see the full commands 92 93ifeq ("$(origin V)", "command line") 94 KBUILD_VERBOSE = $(V) 95endif 96ifndef KBUILD_VERBOSE 97 KBUILD_VERBOSE = 0 98endif 99 100ifeq ($(KBUILD_VERBOSE),1) 101 quiet = 102 Q = 103else 104 quiet=quiet_ 105 Q = @ 106endif 107 108# If the user is running make -s (silent mode), suppress echoing of 109# commands 110 111ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 112ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 113 quiet=silent_ 114endif 115else # make-3.8x 116ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 117 quiet=silent_ 118endif 119endif 120 121export quiet Q KBUILD_VERBOSE 122 123# kbuild supports saving output files in a separate directory. 124# To locate output files in a separate directory two syntaxes are supported. 125# In both cases the working directory must be the root of the kernel src. 126# 1) O= 127# Use "make O=dir/to/store/output/files/" 128# 129# 2) Set KBUILD_OUTPUT 130# Set the environment variable KBUILD_OUTPUT to point to the directory 131# where the output files shall be placed. 132# export KBUILD_OUTPUT=dir/to/store/output/files/ 133# make 134# 135# The O= assignment takes precedence over the KBUILD_OUTPUT environment 136# variable. 137 138# KBUILD_SRC is set on invocation of make in OBJ directory 139# KBUILD_SRC is not intended to be used by the regular user (for now) 140ifeq ($(KBUILD_SRC),) 141 142# OK, Make called in directory where kernel src resides 143# Do we want to locate output files in a separate directory? 144ifeq ("$(origin O)", "command line") 145 KBUILD_OUTPUT := $(O) 146endif 147 148# That's our default target when none is given on the command line 149PHONY := _all 150_all: 151 152# Cancel implicit rules on top Makefile 153$(CURDIR)/Makefile Makefile: ; 154 155ifneq ($(KBUILD_OUTPUT),) 156# Invoke a second make in the output directory, passing relevant variables 157# check that the output directory actually exists 158saved-output := $(KBUILD_OUTPUT) 159KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 160 && /bin/pwd) 161$(if $(KBUILD_OUTPUT),, \ 162 $(error failed to create output directory "$(saved-output)")) 163 164# Look for make include files relative to root of kernel src 165# 166# This does not become effective immediately because MAKEFLAGS is re-parsed 167# once after the Makefile is read. It is OK since we are going to invoke 168# 'sub-make' below. 169MAKEFLAGS += --include-dir=$(CURDIR) 170 171PHONY += $(MAKECMDGOALS) sub-make 172 173$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 174 @: 175 176sub-make: FORCE 177 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ 178 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) 179 180# Leave processing to above invocation of make 181skip-makefile := 1 182endif # ifneq ($(KBUILD_OUTPUT),) 183endif # ifeq ($(KBUILD_SRC),) 184 185# We process the rest of the Makefile if this is the final invocation of make 186ifeq ($(skip-makefile),) 187 188# Do not print "Entering directory ...", 189# but we want to display it when entering to the output directory 190# so that IDEs/editors are able to understand relative filenames. 191MAKEFLAGS += --no-print-directory 192 193# Call a source code checker (by default, "sparse") as part of the 194# C compilation. 195# 196# Use 'make C=1' to enable checking of only re-compiled files. 197# Use 'make C=2' to enable checking of *all* source files, regardless 198# of whether they are re-compiled or not. 199# 200# See the file "doc/sparse.txt" for more details, including 201# where to get the "sparse" utility. 202 203ifeq ("$(origin C)", "command line") 204 KBUILD_CHECKSRC = $(C) 205endif 206ifndef KBUILD_CHECKSRC 207 KBUILD_CHECKSRC = 0 208endif 209 210# Use make M=dir to specify directory of external module to build 211# Old syntax make ... SUBDIRS=$PWD is still supported 212# Setting the environment variable KBUILD_EXTMOD take precedence 213ifdef SUBDIRS 214 KBUILD_EXTMOD ?= $(SUBDIRS) 215endif 216 217ifeq ("$(origin M)", "command line") 218 KBUILD_EXTMOD := $(M) 219endif 220 221# If building an external module we do not care about the all: rule 222# but instead _all depend on modules 223PHONY += all 224ifeq ($(KBUILD_EXTMOD),) 225_all: all 226else 227_all: modules 228endif 229 230ifeq ($(KBUILD_SRC),) 231 # building in the source tree 232 srctree := . 233else 234 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 235 # building in a subdirectory of the source tree 236 srctree := .. 237 else 238 srctree := $(KBUILD_SRC) 239 endif 240endif 241objtree := . 242src := $(srctree) 243obj := $(objtree) 244 245VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 246 247export srctree objtree VPATH 248 249# Make sure CDPATH settings don't interfere 250unexport CDPATH 251 252######################################################################### 253 254HOSTARCH := $(shell uname -m | \ 255 sed -e s/i.86/x86/ \ 256 -e s/sun4u/sparc64/ \ 257 -e s/arm.*/arm/ \ 258 -e s/sa110/arm/ \ 259 -e s/ppc64/powerpc/ \ 260 -e s/ppc/powerpc/ \ 261 -e s/macppc/powerpc/\ 262 -e s/sh.*/sh/) 263 264HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \ 265 sed -e 's/\(cygwin\).*/cygwin/') 266 267export HOSTARCH HOSTOS 268 269######################################################################### 270 271# set default to nothing for native builds 272ifeq ($(HOSTARCH),$(ARCH)) 273CROSS_COMPILE ?= 274endif 275 276KCONFIG_CONFIG ?= .config 277export KCONFIG_CONFIG 278 279# SHELL used by kbuild 280CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 281 else if [ -x /bin/bash ]; then echo /bin/bash; \ 282 else echo sh; fi ; fi) 283 284HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null) 285HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null) 286HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null) 287 288HOSTCC = cc 289HOSTCXX = c++ 290KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \ 291 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) 292KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) 293KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS) 294KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS) 295 296# With the move to GCC 6, we have implicitly upgraded our language 297# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 298# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 299# have older compilers as their default, so we make it explicit for 300# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 301CSTD_FLAG := -std=gnu11 302KBUILD_HOSTCFLAGS += $(CSTD_FLAG) 303 304ifeq ($(HOSTOS),cygwin) 305KBUILD_HOSTCFLAGS += -ansi 306endif 307 308# Mac OS X / Darwin's C preprocessor is Apple specific. It 309# generates numerous errors and warnings. We want to bypass it 310# and use GNU C's cpp. To do this we pass the -traditional-cpp 311# option to the compiler. Note that the -traditional-cpp flag 312# DOES NOT have the same semantics as GNU C's flag, all it does 313# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 314# 315# Apple's linker is similar, thanks to the new 2 stage linking 316# multiple symbol definitions are treated as errors, hence the 317# -multiply_defined suppress option to turn off this error. 318# 319ifeq ($(HOSTOS),darwin) 320# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 321DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 322DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 323 324os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 325 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 326 327os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \ 328 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 329 330# Snow Leopards build environment has no longer restrictions as described above 331HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 332KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 333KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 334 335# macOS Mojave (10.14.X) 336# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" 337KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") 338endif 339 340# Decide whether to build built-in, modular, or both. 341# Normally, just do built-in. 342 343KBUILD_MODULES := 344KBUILD_BUILTIN := 1 345 346# If we have only "make modules", don't compile built-in objects. 347# When we're building modules with modversions, we need to consider 348# the built-in objects during the descend as well, in order to 349# make sure the checksums are up to date before we record them. 350 351ifeq ($(MAKECMDGOALS),modules) 352 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 353endif 354 355# If we have "make <whatever> modules", compile modules 356# in addition to whatever we do anyway. 357# Just "make" or "make all" shall build modules as well 358 359# U-Boot does not need modules 360#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 361# KBUILD_MODULES := 1 362#endif 363 364#ifeq ($(MAKECMDGOALS),) 365# KBUILD_MODULES := 1 366#endif 367 368# Check ths size of a binary: 369# Args: 370# $1: File to check 371# #2: Size limit in bytes (decimal or 0xhex) 372define size_check 373 actual=$$( wc -c $1 | awk '{print $$1}'); \ 374 limit=$$( printf "%d" $2 ); \ 375 if test $$actual -gt $$limit; then \ 376 echo "$1 exceeds file size limit:" >&2; \ 377 echo " limit: $$(printf %#x $$limit) bytes" >&2; \ 378 echo " actual: $$(printf %#x $$actual) bytes" >&2; \ 379 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\ 380 exit 1; \ 381 fi 382endef 383export size_check 384 385export KBUILD_MODULES KBUILD_BUILTIN 386export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 387 388# We need some generic definitions (do not try to remake the file). 389scripts/Kbuild.include: ; 390include scripts/Kbuild.include 391 392# Make variables (CC, etc...) 393 394AS = $(CROSS_COMPILE)as 395# Always use GNU ld 396ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 397LD = $(CROSS_COMPILE)ld.bfd 398else 399LD = $(CROSS_COMPILE)ld 400endif 401CC = $(CROSS_COMPILE)gcc 402CPP = $(CC) -E 403AR = $(CROSS_COMPILE)ar 404NM = $(CROSS_COMPILE)nm 405LDR = $(CROSS_COMPILE)ldr 406STRIP = $(CROSS_COMPILE)strip 407OBJCOPY = $(CROSS_COMPILE)objcopy 408OBJDUMP = $(CROSS_COMPILE)objdump 409LEX = flex 410YACC = bison 411AWK = awk 412PERL = perl 413PYTHON ?= python 414PYTHON2 = python2 415PYTHON3 ?= python3 416 417# The devicetree compiler and pylibfdt are automatically built unless DTC is 418# provided. If DTC is provided, it is assumed the pylibfdt is available too. 419DTC_INTREE := $(objtree)/scripts/dtc/dtc 420DTC ?= $(DTC_INTREE) 421DTC_MIN_VERSION := 010406 422 423CHECK = sparse 424 425CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 426 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 427 428KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 429 430KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 431 -Wno-format-security \ 432 -fno-builtin -ffreestanding $(CSTD_FLAG) 433KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 434KBUILD_AFLAGS := -D__ASSEMBLY__ 435KBUILD_LDFLAGS := 436 437ifeq ($(cc-name),clang) 438ifneq ($(CROSS_COMPILE),) 439CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 440GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 441CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 442GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 443endif 444ifneq ($(GCC_TOOLCHAIN),) 445CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 446endif 447KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 448KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 449KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 450KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 451endif 452 453# Don't generate position independent code 454KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 455KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 456 457# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 458UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 459UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 460 461export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 462export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 463export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 464export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 465export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 466export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 467 468export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 469export KBUILD_CFLAGS KBUILD_AFLAGS 470 471export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 472 473# When compiling out-of-tree modules, put MODVERDIR in the module 474# tree rather than in the kernel tree. The kernel tree might 475# even be read-only. 476export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 477 478# Files to ignore in find ... statements 479 480export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 481 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 482 -prune -o 483export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 484 --exclude CVS --exclude .pc --exclude .hg --exclude .git 485 486# =========================================================================== 487# Rules shared between *config targets and build targets 488 489# Basic helpers built in scripts/ 490PHONY += scripts_basic 491scripts_basic: 492 $(Q)$(MAKE) $(build)=scripts/basic 493 $(Q)rm -f .tmp_quiet_recordmcount 494 495# To avoid any implicit rule to kick in, define an empty command. 496scripts/basic/%: scripts_basic ; 497 498PHONY += outputmakefile 499# outputmakefile generates a Makefile in the output directory, if using a 500# separate output directory. This allows convenient use of make in the 501# output directory. 502outputmakefile: 503ifneq ($(KBUILD_SRC),) 504 $(Q)ln -fsn $(srctree) source 505 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) 506endif 507 508# To make sure we do not include .config for any of the *config targets 509# catch them early, and hand them over to scripts/kconfig/Makefile 510# It is allowed to specify more targets when calling make, including 511# mixing *config targets and build targets. 512# For example 'make oldconfig all'. 513# Detect when mixed targets is specified, and make a second invocation 514# of make so .config is not included in this case either (for *config). 515 516version_h := include/generated/version_autogenerated.h 517timestamp_h := include/generated/timestamp_autogenerated.h 518defaultenv_h := include/generated/defaultenv_autogenerated.h 519dt_h := include/generated/dt.h 520env_h := include/generated/environment.h 521 522no-dot-config-targets := clean clobber mrproper distclean \ 523 help %docs check% coccicheck \ 524 ubootversion backup tests check qcheck tcheck pylint 525 526config-targets := 0 527mixed-targets := 0 528dot-config := 1 529 530ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 531 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 532 dot-config := 0 533 endif 534endif 535 536ifeq ($(KBUILD_EXTMOD),) 537 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 538 config-targets := 1 539 ifneq ($(words $(MAKECMDGOALS)),1) 540 mixed-targets := 1 541 endif 542 endif 543endif 544 545ifeq ($(mixed-targets),1) 546# =========================================================================== 547# We're called with mixed targets (*config and build targets). 548# Handle them one by one. 549 550PHONY += $(MAKECMDGOALS) __build_one_by_one 551 552$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 553 @: 554 555__build_one_by_one: 556 $(Q)set -e; \ 557 for i in $(MAKECMDGOALS); do \ 558 $(MAKE) -f $(srctree)/Makefile $$i; \ 559 done 560 561else 562ifeq ($(config-targets),1) 563# =========================================================================== 564# *config targets only - make sure prerequisites are updated, and descend 565# in scripts/kconfig to make the *config target 566 567KBUILD_DEFCONFIG := sandbox_defconfig 568export KBUILD_DEFCONFIG KBUILD_KCONFIG 569 570config: scripts_basic outputmakefile FORCE 571 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 572 573%config: scripts_basic outputmakefile FORCE 574 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 575 576else 577# =========================================================================== 578# Build targets only - this includes vmlinux, arch specific targets, clean 579# targets and others. In general all targets except *config targets. 580 581# Additional helpers built in scripts/ 582# Carefully list dependencies so we do not try to build scripts twice 583# in parallel 584PHONY += scripts 585scripts: scripts_basic scripts_dtc include/config/auto.conf 586 $(Q)$(MAKE) $(build)=$(@) 587 588ifeq ($(dot-config),1) 589# Read in config 590-include include/config/auto.conf 591 592# Read in dependencies to all Kconfig* files, make sure to run 593# oldconfig if changes are detected. 594-include include/config/auto.conf.cmd 595 596# To avoid any implicit rule to kick in, define an empty command 597$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 598 599# If .config is newer than include/config/auto.conf, someone tinkered 600# with it and forgot to run make oldconfig. 601# if auto.conf.cmd is missing then we are probably in a cleaned tree so 602# we execute the config step to be sure to catch updated Kconfig files 603include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 604 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 605 @# If the following part fails, include/config/auto.conf should be 606 @# deleted so "make silentoldconfig" will be re-run on the next build. 607 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 608 { rm -f include/config/auto.conf; false; } 609 @# include/config.h has been updated after "make silentoldconfig". 610 @# We need to touch include/config/auto.conf so it gets newer 611 @# than include/config.h. 612 @# Otherwise, 'make silentoldconfig' would be invoked twice. 613 $(Q)touch include/config/auto.conf 614 615u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 616 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 617 618-include include/autoconf.mk 619-include include/autoconf.mk.dep 620 621# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 622# is up-to-date. When we switch to a different board configuration, old CONFIG 623# macros are still remaining in include/config/auto.conf. Without the following 624# gimmick, wrong config.mk would be included leading nasty warnings/errors. 625ifneq ($(wildcard $(KCONFIG_CONFIG)),) 626ifneq ($(wildcard include/config/auto.conf),) 627autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 628 include/config/auto.conf) 629ifeq ($(autoconf_is_old),) 630include config.mk 631include arch/$(ARCH)/Makefile 632endif 633endif 634endif 635 636# These are set by the arch-specific config.mk. Make sure they are exported 637# so they can be used when building an EFI application. 638export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 639export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 640export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 641export CFLAGS_EFI # Compiler flags to add when building EFI app 642export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 643export EFI_TARGET # binutils target if EFI is natively supported 644 645# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 646# that (or fail if absent). Otherwise, search for a linker script in a 647# standard location. 648 649ifndef LDSCRIPT 650 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 651 ifdef CONFIG_SYS_LDSCRIPT 652 # need to strip off double quotes 653 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 654 endif 655endif 656 657# If there is no specified link script, we look in a number of places for it 658ifndef LDSCRIPT 659 ifeq ($(wildcard $(LDSCRIPT)),) 660 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 661 endif 662 ifeq ($(wildcard $(LDSCRIPT)),) 663 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 664 endif 665 ifeq ($(wildcard $(LDSCRIPT)),) 666 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 667 endif 668endif 669 670else 671# Dummy target needed, because used as prerequisite 672include/config/auto.conf: ; 673endif # $(dot-config) 674 675# 676# Xtensa linker script cannot be preprocessed with -ansi because of 677# preprocessor operations on strings that don't make C identifiers. 678# 679ifeq ($(CONFIG_XTENSA),) 680LDPPFLAGS += -ansi 681endif 682 683ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 684KBUILD_CFLAGS += -Os 685else 686KBUILD_CFLAGS += -O2 687endif 688 689LTO_CFLAGS := 690LTO_FINAL_LDFLAGS := 691export LTO_CFLAGS LTO_FINAL_LDFLAGS 692ifdef CONFIG_LTO 693 ifeq ($(cc-name),clang) 694 LTO_CFLAGS += -flto 695 LTO_FINAL_LDFLAGS += -flto 696 697 AR = $(shell $(CC) -print-prog-name=llvm-ar) 698 NM = $(shell $(CC) -print-prog-name=llvm-nm) 699 else 700 NPROC := $(shell nproc 2>/dev/null || echo 1) 701 LTO_CFLAGS += -flto=$(NPROC) 702 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 703 704 # use plugin aware tools 705 AR = $(CROSS_COMPILE)gcc-ar 706 NM = $(CROSS_COMPILE)gcc-nm 707 endif 708 709 CFLAGS_NON_EFI += $(LTO_CFLAGS) 710 711 KBUILD_CFLAGS += $(LTO_CFLAGS) 712endif 713 714ifeq ($(CONFIG_STACKPROTECTOR),y) 715KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 716CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 717else 718KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 719endif 720KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 721 722# disable pointer signed / unsigned warnings in gcc 4.0 723KBUILD_CFLAGS += -Wno-pointer-sign 724 725# disable stringop warnings in gcc 8+ 726KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 727 728KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 729KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 730KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 731 732# Enabled with W=2, disabled by default as noisy 733KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 734 735# change __FILE__ to the relative path from the srctree 736KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 737 738KBUILD_CFLAGS += -g 739# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 740# option to the assembler. 741KBUILD_AFLAGS += -g 742 743# Report stack usage if supported 744# ARC tools based on GCC 7.1 has an issue with stack usage 745# with naked functions, see commit message for more details 746ifndef CONFIG_ARC 747ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 748 KBUILD_CFLAGS += -fstack-usage 749endif 750endif 751 752KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 753KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 754 755ifdef CONFIG_CC_IS_CLANG 756KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 757KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 758KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 759KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 760# Quiet clang warning: comparison of unsigned expression < 0 is always false 761KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 762# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 763# source of a reference will be _MergedGlobals and not on of the whitelisted names. 764# See modpost pattern 2 765KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 766KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 767endif 768 769# These warnings generated too much noise in a regular build. 770# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 771KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 772 773# Prohibit date/time macros, which would make the build non-deterministic 774KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 775 776include scripts/Makefile.extrawarn 777 778# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 779KBUILD_CPPFLAGS += $(KCPPFLAGS) 780KBUILD_AFLAGS += $(KAFLAGS) 781KBUILD_CFLAGS += $(KCFLAGS) 782 783KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 784 785# Use UBOOTINCLUDE when you must reference the include/ directory. 786# Needed to be compatible with the O= option 787UBOOTINCLUDE := \ 788 -Iinclude \ 789 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 790 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 791 $(if $(CONFIG_HAS_THUMB2), \ 792 $(if $(CONFIG_CPU_V7M), \ 793 -I$(srctree)/arch/arm/thumb1/include), \ 794 -I$(srctree)/arch/arm/thumb1/include)) \ 795 -I$(srctree)/arch/$(ARCH)/include \ 796 -include $(srctree)/include/linux/kconfig.h 797 798NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 799 800# FIX ME 801cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 802 $(NOSTDINC_FLAGS) 803c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 804 805######################################################################### 806# U-Boot objects....order is important (i.e. start must be first) 807 808HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 809 810libs-$(CONFIG_API) += api/ 811libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 812libs-y += boot/ 813libs-y += cmd/ 814libs-y += common/ 815libs-$(CONFIG_OF_EMBED) += dts/ 816libs-y += env/ 817libs-y += lib/ 818libs-y += fs/ 819libs-y += net/ 820libs-y += disk/ 821libs-y += drivers/ 822libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 823libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 824libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 825libs-y += drivers/usb/cdns3/ 826libs-y += drivers/usb/dwc3/ 827libs-y += drivers/usb/common/ 828libs-y += drivers/usb/emul/ 829libs-y += drivers/usb/eth/ 830libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 831libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 832libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 833libs-y += drivers/usb/host/ 834libs-y += drivers/usb/mtu3/ 835libs-y += drivers/usb/musb/ 836libs-y += drivers/usb/musb-new/ 837libs-y += drivers/usb/phy/ 838libs-y += drivers/usb/ulpi/ 839ifdef CONFIG_POST 840libs-y += post/ 841endif 842libs-$(CONFIG_UNIT_TEST) += test/ 843libs-$(CONFIG_UT_ENV) += test/env/ 844libs-$(CONFIG_UT_OPTEE) += test/optee/ 845libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 846 847libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 848 849libs-y := $(sort $(libs-y)) 850 851u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 852 853u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 854 855libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 856 857u-boot-init := $(head-y) 858u-boot-main := $(libs-y) 859 860 861# Add GCC lib 862ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 863PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 864else 865PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 866endif 867PLATFORM_LIBS += $(PLATFORM_LIBGCC) 868 869ifdef CONFIG_CC_COVERAGE 870KBUILD_CFLAGS += --coverage 871PLATFORM_LIBGCC += -lgcov 872endif 873 874export PLATFORM_LIBS 875export PLATFORM_LIBGCC 876 877# Special flags for CPP when processing the linker script. 878# Pass the version down so we can handle backwards compatibility 879# on the fly. 880LDPPFLAGS += \ 881 -include $(srctree)/include/u-boot/u-boot.lds.h \ 882 -DCPUDIR=$(CPUDIR) \ 883 $(shell $(LD) --version | \ 884 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 885 886######################################################################### 887######################################################################### 888 889ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 890BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 891else 892BOARD_SIZE_CHECK = 893endif 894 895ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 896SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 897else 898SPL_SIZE_CHECK = 899endif 900 901ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 902TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 903else 904TPL_SIZE_CHECK = 905endif 906 907# Statically apply RELA-style relocations (currently arm64 only) 908# This is useful for arm64 where static relocation needs to be performed on 909# the raw binary, but certain simulators only accept an ELF file (but don't 910# do the relocation). 911ifneq ($(CONFIG_STATIC_RELA),) 912# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 913quiet_cmd_static_rela = RELOC $@ 914cmd_static_rela = \ 915 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 916 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 917 tools/relocate-rela $(3) $(4) $$start $$end 918else 919quiet_cmd_static_rela = 920cmd_static_rela = 921endif 922 923# Always append INPUTS so that arch config.mk's can add custom ones 924INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 925 926INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 927ifeq ($(CONFIG_SPL_FSL_PBL),y) 928INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 929else 930ifneq ($(CONFIG_NXP_ESBC), y) 931# For Secure Boot The Image needs to be signed and Header must also 932# be included. So The image has to be built explicitly 933INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 934endif 935endif 936INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 937ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 938INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 939else 940ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 941INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 942else 943INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 944endif 945endif 946INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 947 948# Allow omitting the .dtb output if it is not normally used 949INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb) 950ifeq ($(CONFIG_SPL_FRAMEWORK),y) 951INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 952endif 953INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb 954ifneq ($(CONFIG_SPL_TARGET),) 955INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 956endif 957INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 958INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 959INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 960 961# Generate this input file for binman 962ifeq ($(CONFIG_SPL),) 963INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 964endif 965 966# Add optional build target if defined in board/cpu/soc headers 967ifneq ($(CONFIG_BUILD_TARGET),) 968INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 969endif 970 971ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 972INPUTS-y += init_sp_bss_offset_check 973endif 974 975ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 976INPUTS-y += u-boot-with-dtb.bin 977endif 978 979ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 980# On ARM64 this target is produced by binman so we don't need this dep 981ifeq ($(CONFIG_ARM64),y) 982ifeq ($(CONFIG_SPL),y) 983# TODO: Get binman to generate this too 984INPUTS-y += u-boot-rockchip.bin 985endif 986else 987ifeq ($(CONFIG_SPL),y) 988# Generate these inputs for binman which will create the output files 989INPUTS-y += idbloader.img u-boot.img 990endif 991endif 992endif 993 994INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 995 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 996 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 997 998LDFLAGS_u-boot += $(LDFLAGS_FINAL) 999 1000# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1001LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1002 1003# ld.lld support 1004LDFLAGS_u-boot += -z notext 1005 1006LDFLAGS_u-boot += --build-id=none 1007 1008ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1009LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 1010endif 1011 1012# insure the checker run with the right endianness 1013CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1014 1015# the checker needs the correct machine size 1016CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1017 1018# Normally we fill empty space with 0xff 1019quiet_cmd_objcopy = OBJCOPY $@ 1020cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1021 $(OBJCOPYFLAGS_$(@F)) $< $@ 1022 1023# Provide a version which does not do this, for use by EFI 1024quiet_cmd_zobjcopy = OBJCOPY $@ 1025cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1026 1027quiet_cmd_efipayload = OBJCOPY $@ 1028cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1029 1030MKIMAGEOUTPUT ?= /dev/null 1031 1032quiet_cmd_mkimage = MKIMAGE $@ 1033cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1034 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1035 1036quiet_cmd_mkfitimage = MKIMAGE $@ 1037cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1038 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1039 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1040 1041quiet_cmd_cat = CAT $@ 1042cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1043 1044append = cat $(filter-out $< $(PHONY), $^) >> $@ 1045 1046quiet_cmd_pad_cat = CAT $@ 1047cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1048 1049quiet_cmd_lzma = LZMA $@ 1050cmd_lzma = lzma -c -z -k -9 $< > $@ 1051 1052cfg: u-boot.cfg 1053 1054quiet_cmd_cfgcheck = CFGCHK $2 1055cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 1056 $(srctree)/scripts/config_whitelist.txt $(srctree) 1057 1058quiet_cmd_ofcheck = OFCHK $2 1059cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \ 1060 $(srctree)/scripts/of_allowlist.txt 1061 1062# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1063got = $(foreach cfg,$(1),$($(cfg))) 1064 1065# expected value 'y for each one 1066expect = $(foreach cfg,$(1),y) 1067 1068# Show a deprecation message 1069# Args: 1070# 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1071# 2: Name of component (e.g . "Ethernet drivers") 1072# 3: Release deadline (e.g. "v202.07") 1073# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1074# Note: Script avoids bash construct, hence the strange double 'if' 1075# (patches welcome!) 1076define deprecated 1077 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1078 echo >&2 "===================== WARNING ======================"; \ 1079 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1080 echo >&2 "for $(2)). Please update the board to use"; \ 1081 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1082 echo >&2 "update by the deadline may result in board removal."; \ 1083 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \ 1084 echo >&2 "===================================================="; \ 1085 fi; fi 1086 1087endef 1088 1089PHONY += inputs 1090inputs: $(INPUTS-y) 1091 1092all: .binman_stamp inputs 1093ifeq ($(CONFIG_BINMAN),y) 1094 $(call if_changed,binman) 1095endif 1096 1097# Timestamp file to make sure that binman always runs 1098.binman_stamp: FORCE 1099 @touch $@ 1100 1101ifeq ($(CONFIG_DEPRECATED),y) 1102 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1103endif 1104ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) 1105 @echo >&2 "===================== WARNING ======================" 1106 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1107 @echo >&2 "be used for debugging purposes. Please use" 1108 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1109 @echo >&2 "See doc/README.fdt-control for more info." 1110 @echo >&2 "====================================================" 1111endif 1112ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1113 @echo >&2 "===================== WARNING ======================" 1114 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1115 @echo >&2 "to binman instead, to avoid the proliferation of" 1116 @echo >&2 "arch-specific scripts with no tests." 1117 @echo >&2 "====================================================" 1118endif 1119ifneq ($(CONFIG_DM),y) 1120 @echo >&2 "===================== WARNING ======================" 1121 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be" 1122 @echo >&2 "compulsory starting with the v2020.01 release." 1123 @echo >&2 "Failure to update may result in board removal." 1124 @echo >&2 "See doc/develop/driver-model/migration.rst for more info." 1125 @echo >&2 "====================================================" 1126endif 1127 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1128 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1129 $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET)) 1130 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1131 $(call deprecated,CONFIG_DM_KEYBOARD,Keyboard drivers,v2022.10,$(CONFIG_KEYBOARD)) 1132 @# CONFIG_SYS_TIMER_RATE has brackets in it for some boards which 1133 @# confuses this rule. Use if() to send just a single character which 1134 @# is enable to tell 'deprecated' that one of these symbols exists 1135 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CONFIG_SYS_TIMER_RATE)$(CONFIG_SYS_TIMER_COUNTER)),x)) 1136 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL)) 1137 $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI)) 1138 @# Check that this build does not use CONFIG options that we do not 1139 @# know about unless they are in Kconfig. All the existing CONFIG 1140 @# options are whitelisted, so new ones should not be added. 1141 $(call cmd,cfgcheck,u-boot.cfg) 1142 @# Check that this build does not override OF_HAS_PRIOR_STAGE by 1143 @# disabling OF_BOARD. 1144 $(call cmd,ofcheck,$(KCONFIG_CONFIG)) 1145 1146PHONY += dtbs 1147dtbs: dts/dt.dtb 1148 @: 1149dts/dt.dtb: u-boot 1150 $(Q)$(MAKE) $(build)=dts dtbs 1151 1152quiet_cmd_copy = COPY $@ 1153 cmd_copy = cp $< $@ 1154 1155ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1156 1157ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1158FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1159else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1160FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1161else 1162FINAL_DTB_CONTAINER = fit-dtb.blob 1163endif 1164 1165fit-dtb.blob.gz: fit-dtb.blob 1166 @gzip -kf9 $< > $@ 1167 1168fit-dtb.blob.lzo: fit-dtb.blob 1169 @lzop -f9 $< > $@ 1170 1171fit-dtb.blob: dts/dt.dtb FORCE 1172 $(call if_changed,mkimage) 1173ifneq ($(SOURCE_DATE_EPOCH),) 1174 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1175 chmod 0600 fit-dtb.blob 1176endif 1177 1178MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1179 -a 0 -e 0 -E \ 1180 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1181 1182MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1183 1184ifneq ($(EXT_DTB),) 1185u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1186 $(call if_changed,cat) 1187else 1188u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1189 $(call if_changed,cat) 1190endif 1191 1192u-boot.bin: u-boot-fit-dtb.bin FORCE 1193 $(call if_changed,copy) 1194 1195u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1196 $(call if_changed,cat) 1197 1198else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.) 1199u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1200 $(call if_changed,cat) 1201 1202u-boot.bin: u-boot-dtb.bin FORCE 1203 $(call if_changed,copy) 1204else 1205u-boot.bin: u-boot-nodtb.bin FORCE 1206 $(call if_changed,copy) 1207endif 1208 1209# we call Makefile in arch/arm/mach-imx which 1210# has targets which are dependent on targets defined 1211# here. make could not resolve them and we must ensure 1212# that they are finished before calling imx targets 1213ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1214IMX_DEPS = u-boot-fit-dtb.bin 1215endif 1216 1217%.imx: $(IMX_DEPS) %.bin 1218 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1219 $(BOARD_SIZE_CHECK) 1220 1221%.vyb: %.imx 1222 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1223 1224quiet_cmd_copy = COPY $@ 1225 cmd_copy = cp $< $@ 1226 1227u-boot.dtb: dts/dt.dtb 1228 $(call cmd,copy) 1229 1230OBJCOPYFLAGS_u-boot.hex := -O ihex 1231 1232OBJCOPYFLAGS_u-boot.srec := -O srec 1233 1234u-boot.hex u-boot.srec: u-boot FORCE 1235 $(call if_changed,objcopy) 1236 1237OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1238 1239u-boot-elf.srec: u-boot.elf FORCE 1240 $(call if_changed,objcopy) 1241 1242OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1243 1244spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1245 $(call if_changed,objcopy) 1246 1247%.scif: %.srec 1248 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1249 1250OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1251 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1252 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1253 1254binary_size_check: u-boot-nodtb.bin FORCE 1255 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1256 map_size=$(shell cat u-boot.map | \ 1257 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1258 | sed 's/0X//g' \ 1259 | bc); \ 1260 if [ "" != "$$map_size" ]; then \ 1261 if test $$map_size -ne $$file_size; then \ 1262 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1263 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1264 exit 1; \ 1265 fi; \ 1266 fi 1267 1268ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1269ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1270subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1271else 1272subtract_sys_malloc_f_len = true 1273endif 1274# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1275# so low that the DTB could probably use 90%+ of the available space, for 1276# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1277# safe for now and tweak this later if space becomes tight. 1278# A rejected alternative would be to check that some absolute minimum stack 1279# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1280# deliberately build-specific, to take account of build-to-build stack usage 1281# differences due to different feature sets, there is no common absolute value 1282# to check against. 1283init_sp_bss_offset_check: u-boot.dtb FORCE 1284 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1285 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1286 $(subtract_sys_malloc_f_len) ; \ 1287 quarter_space=$$(($${space} / 4)) ; \ 1288 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1289 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1290 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1291 exit 1 ; \ 1292 fi 1293endif 1294 1295shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1296 1297quiet_cmd_objcopy_uboot = OBJCOPY $@ 1298ifdef cmd_static_rela 1299cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; } 1300else 1301cmd_objcopy_uboot = $(cmd_objcopy) 1302endif 1303 1304u-boot-nodtb.bin: u-boot FORCE 1305 $(call if_changed,objcopy_uboot) 1306 $(BOARD_SIZE_CHECK) 1307 1308u-boot.ldr: u-boot 1309 $(CREATE_LDR_ENV) 1310 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1311 $(BOARD_SIZE_CHECK) 1312 1313# binman 1314# --------------------------------------------------------------------------- 1315# Use 'make BINMAN_DEBUG=1' to enable debugging 1316# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1317default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1318 1319quiet_cmd_binman = BINMAN $@ 1320cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1321 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \ 1322 --toolpath $(objtree)/tools \ 1323 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1324 build -u -d u-boot.dtb -O . -m --allow-missing \ 1325 --fake-ext-blobs \ 1326 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1327 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ 1328 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \ 1329 -a atf-bl31-path=${BL31} \ 1330 -a tee-os-path=${TEE} \ 1331 -a opensbi-path=${OPENSBI} \ 1332 -a default-dt=$(default_dt) \ 1333 -a scp-path=$(SCP) \ 1334 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1335 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1336 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ 1337 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ 1338 $(BINMAN_$(@F)) 1339 1340OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1341 1342OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1343 1344u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1345 $(call if_changed,objcopy) 1346 1347# 1348# U-Boot entry point, needed for booting of full-blown U-Boot 1349# from the SPL U-Boot version. 1350# 1351ifndef CONFIG_SYS_UBOOT_START 1352CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE) 1353endif 1354 1355# Boards with more complex image requirements can provide an .its source file 1356# or a generator script 1357# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1358# binman instead. 1359ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1360U_BOOT_ITS := u-boot.its 1361$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1362 $(call if_changed,copy) 1363else 1364ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1365U_BOOT_ITS := u-boot.its 1366ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1367U_BOOT_ITS_DEPS += u-boot 1368endif 1369$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1370 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1371 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1372endif 1373endif 1374 1375ifdef CONFIG_SPL_LOAD_FIT 1376MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1377 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1378 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1379 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1380 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1381 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1382 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1383else 1384MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1385 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1386 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1387MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1388 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1389 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1390u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1391endif 1392 1393MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1394 1395# Some boards have the kwbimage.cfg file written in advance, while some 1396# other boards generate it on the fly during the build in the build tree. 1397# Let's check if the file exists in the build tree first, otherwise we 1398# fall back to use the one in the source tree. 1399KWD_CONFIG_FILE = $(shell \ 1400 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1401 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1402 else \ 1403 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1404 fi) 1405 1406MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1407 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1408 1409MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1410 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1411 $(if $(KEYDIR),-k $(KEYDIR)) 1412 1413MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1414 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage 1415 1416ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1417UBOOT_BIN := u-boot-with-dtb.bin 1418else 1419UBOOT_BIN := u-boot.bin 1420endif 1421 1422MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1423 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1424 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1425 1426u-boot.bin.lzma: u-boot.bin FORCE 1427 $(call if_changed,lzma) 1428 1429u-boot-lzma.img: u-boot.bin.lzma FORCE 1430 $(call if_changed,mkimage) 1431 1432u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1433 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1434 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1435 ,$(UBOOT_BIN)) FORCE 1436 $(call if_changed,mkimage) 1437 $(BOARD_SIZE_CHECK) 1438 1439ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1440MKIMAGEFLAGS_u-boot.itb = 1441else 1442MKIMAGEFLAGS_u-boot.itb = -E 1443endif 1444MKIMAGEFLAGS_u-boot.itb += -B 0x8 1445 1446ifdef U_BOOT_ITS 1447u-boot.itb: u-boot-nodtb.bin \ 1448 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1449 $(U_BOOT_ITS) FORCE 1450 $(call if_changed,mkfitimage) 1451 $(BOARD_SIZE_CHECK) 1452endif 1453 1454u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1455 $(call if_changed,mkimage) 1456 1457u-boot.sha1: u-boot.bin 1458 tools/ubsha1 u-boot.bin 1459 1460u-boot.dis: u-boot 1461 $(OBJDUMP) -d $< > $@ 1462 1463ifneq ($(CONFIG_SPL_PAYLOAD),) 1464SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1465else 1466SPL_PAYLOAD := u-boot.bin 1467endif 1468 1469SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1470 1471OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1472 --pad-to=$(CONFIG_SPL_PAD_TO) 1473u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1474 $(call if_changed,pad_cat) 1475 1476ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 1477 1478# TPL + SPL 1479ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy) 1480MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd 1481tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE 1482 $(call if_changed,mkimage) 1483idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE 1484 $(call if_changed,cat) 1485else 1486MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd 1487idbloader.img: spl/u-boot-spl.bin FORCE 1488 $(call if_changed,mkimage) 1489endif 1490 1491ifeq ($(CONFIG_ARM64),y) 1492OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \ 1493 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1494u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE 1495 $(call if_changed,pad_cat) 1496endif # CONFIG_ARM64 1497 1498endif # CONFIG_ARCH_ROCKCHIP 1499 1500ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1501MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1502 1503lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1504 $(call if_changed,mkimage) 1505 1506OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1507 1508lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1509 $(call if_changed,objcopy) 1510 1511OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1512 1513lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1514 $(call if_changed,objcopy) 1515 1516lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1517 $(call if_changed,cat) 1518 1519endif 1520 1521OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1522 --pad-to=$(CONFIG_TPL_PAD_TO) 1523tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1524 $(call if_changed,pad_cat) 1525 1526SPL: spl/u-boot-spl.bin FORCE 1527 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1528 1529ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1530ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1531u-boot.cnt: u-boot.bin FORCE 1532 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1533 1534flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1535 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1536else 1537ifeq ($(CONFIG_BINMAN),y) 1538flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1539 $(call if_changed,binman) 1540else 1541flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1542 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1543endif 1544endif 1545endif 1546 1547u-boot.uim: u-boot.bin FORCE 1548 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1549 1550u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1551 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1552 1553MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1554 1555u-boot.ubl: u-boot-with-spl.bin FORCE 1556 $(call if_changed,mkimage) 1557 1558MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1559 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1560 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1561spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1562 $(call if_changed,mkimage) 1563 1564OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1565u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1566 $(call if_changed,pad_cat) 1567 1568u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1569 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1570u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1571 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1572 1573MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1574 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1575spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1576 $(call if_changed,mkimage) 1577 1578ifneq ($(CONFIG_ARCH_SOCFPGA),) 1579quiet_cmd_gensplx4 = GENSPLX4 $@ 1580cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1581 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1582 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1583 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1584 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1585spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1586 $(call if_changed,gensplx4) 1587 1588quiet_cmd_socboot = SOCBOOT $@ 1589cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1590u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1591 $(call if_changed,socboot) 1592 1593quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1594cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1595 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1596 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1597 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1598 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1599 { rm -f $@ spl/u-boot-spl.pad; false; } 1600u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1601 $(call if_changed,gensplpadx4) 1602 1603quiet_cmd_socnandboot = SOCNANDBOOT $@ 1604cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1605u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1606 $(call if_changed,socnandboot) 1607 1608endif 1609 1610ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1611u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1612 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1613 $(call if_changed,binman) 1614 1615ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1616OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1617u-boot-br.bin: u-boot FORCE 1618 $(call if_changed,objcopy) 1619endif 1620endif 1621 1622quiet_cmd_ldr = LD $@ 1623cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1624 $(filter-out FORCE,$^) -o $@ 1625 1626ifdef CONFIG_X86 1627OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1628u-boot-x86-start16.bin: u-boot FORCE 1629 $(call if_changed,objcopy) 1630 1631OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1632u-boot-x86-reset16.bin: u-boot FORCE 1633 $(call if_changed,objcopy) 1634 1635endif # CONFIG_X86 1636 1637OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1638u-boot-app.efi: u-boot FORCE 1639 $(call if_changed,zobjcopy) 1640 1641u-boot.bin.o: u-boot.bin FORCE 1642 $(call if_changed,efipayload) 1643 1644u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1645 $(call if_changed_dep,cpp_lds) 1646 1647# Rule to link the EFI payload which contains a stub and a U-Boot binary 1648quiet_cmd_u-boot_payload ?= LD $@ 1649 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1650 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1651 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1652 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1653 1654u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1655 $(call if_changed,u-boot_payload) 1656 1657OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1658u-boot-payload.efi: u-boot-payload FORCE 1659 $(call if_changed,zobjcopy) 1660 1661u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1662 $(call if_changed,cat) 1663 1664#Add a target to create boot binary having SPL binary in PBI format 1665#concatenated with u-boot binary. It is need by PowerPC SoC having 1666#internal SRAM <= 512KB. 1667MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1668 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1669 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1670 1671spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1672 $(call if_changed,mkimage) 1673 1674ifeq ($(ARCH),arm) 1675UBOOT_BINLOAD := u-boot.img 1676else 1677ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1678UBOOT_BINLOAD := u-boot-with-dtb.bin 1679else 1680UBOOT_BINLOAD := u-boot.bin 1681endif 1682endif 1683 1684OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1685 --gap-fill=0xff 1686 1687u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1688 $(call if_changed,pad_cat) 1689 1690# PPC4xx needs the SPL at the end of the image, since the reset vector 1691# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1692# and need to introduce a new build target with the full blown U-Boot 1693# at the start padded up to the start of the SPL image. And then concat 1694# the SPL image to the end. 1695 1696OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1697 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1698u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1699 $(call if_changed,pad_cat) 1700 1701quiet_cmd_u-boot-elf ?= LD $@ 1702 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1703 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1704 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1705u-boot.elf: u-boot.bin u-boot-elf.lds 1706 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1707 $(call if_changed,u-boot-elf) 1708 1709u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1710 $(call if_changed_dep,cpp_lds) 1711 1712# MediaTek's ARM-based u-boot needs a header to contains its load address 1713# which is parsed by the BootROM. 1714# If the SPL build is enabled, the header will be added to the spl binary, 1715# and the spl binary and the u-boot.img will be combined into one file. 1716# Otherwise the header will be added to the u-boot.bin directly. 1717 1718ifeq ($(CONFIG_SPL),y) 1719spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1720 1721u-boot-mtk.bin: u-boot-with-spl.bin 1722 $(call if_changed,copy) 1723else 1724MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1725 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1726 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1727 1728u-boot-mtk.bin: u-boot.bin FORCE 1729 $(call if_changed,mkimage) 1730endif 1731 1732quiet_cmd_endian_swap = SWAP $@ 1733 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1734 1735u-boot-swap.bin: u-boot.bin FORCE 1736 $(call if_changed,endian_swap) 1737 1738ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1739 1740# Generate linker list symbols references to force compiler to not optimize 1741# them away when compiling with LTO 1742ifdef CONFIG_LTO 1743u-boot-keep-syms-lto := keep-syms-lto.o 1744u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1745 1746quiet_cmd_keep_syms_lto = KSL $@ 1747 cmd_keep_syms_lto = \ 1748 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1749 1750quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1751 cmd_keep_syms_lto_cc = \ 1752 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1753 1754$(u-boot-keep-syms-lto_c): $(u-boot-main) 1755 $(call if_changed,keep_syms_lto) 1756$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1757 $(call if_changed,keep_syms_lto_cc) 1758else 1759u-boot-keep-syms-lto := 1760endif 1761 1762# Rule to link u-boot 1763# May be overridden by arch/$(ARCH)/config.mk 1764ifdef CONFIG_LTO 1765quiet_cmd_u-boot__ ?= LTO $@ 1766 cmd_u-boot__ ?= \ 1767 $(CC) -nostdlib -nostartfiles \ 1768 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1769 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1770 -T u-boot.lds $(u-boot-init) \ 1771 -Wl,--whole-archive \ 1772 $(u-boot-main) \ 1773 $(u-boot-keep-syms-lto) \ 1774 $(PLATFORM_LIBS) \ 1775 -Wl,--no-whole-archive \ 1776 -Wl,-Map,u-boot.map; \ 1777 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1778else 1779# Note: Linking efi-x86_app64 causes a segfault in the linker at present 1780# when using x86_64-linux-gnu-ld.bfd 1781# For now, disable --whole-archive which makes things link, although not 1782# correctly 1783quiet_cmd_u-boot__ ?= LD $@ 1784 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1785 -T u-boot.lds $(u-boot-init) \ 1786 --whole-archive \ 1787 $(u-boot-main) \ 1788 --no-whole-archive \ 1789 $(PLATFORM_LIBS) -Map u-boot.map; \ 1790 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1791endif 1792 1793quiet_cmd_smap = GEN common/system_map.o 1794cmd_smap = \ 1795 smap=`$(call SYSTEM_MAP,u-boot) | \ 1796 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1797 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1798 -c $(srctree)/common/system_map.c -o common/system_map.o 1799 1800u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1801 +$(call if_changed,u-boot__) 1802ifeq ($(CONFIG_KALLSYMS),y) 1803 $(call cmd,smap) 1804 $(call cmd,u-boot__) common/system_map.o 1805endif 1806 1807ifeq ($(CONFIG_RISCV),y) 1808 @tools/prelink-riscv $@ 0 1809endif 1810 1811quiet_cmd_sym ?= SYM $@ 1812 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1813u-boot.sym: u-boot FORCE 1814 $(call if_changed,sym) 1815 1816# Environment processing 1817# --------------------------------------------------------------------------- 1818 1819# Directory where we expect the .env file, if it exists 1820ENV_DIR := $(srctree)/board/$(BOARDDIR) 1821 1822# Basename of .env file, stripping quotes 1823ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%) 1824 1825# Filename of .env file 1826ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env 1827 1828# Default filename, if CONFIG_ENV_SOURCE_FILE is empty 1829ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env 1830 1831# Select between the CONFIG_ENV_SOURCE_FILE and the default one 1832ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD))) 1833 1834# Run the environment text file through the preprocessor, but only if it is 1835# non-empty, to save time and possible build errors if something is wonky with 1836# the board. 1837# If there is no ENV_FILE, produce an empty output file, to prevent a previous 1838# build's file being used in the case of in-tree builds. 1839quiet_cmd_gen_envp = ENVP $@ 1840 cmd_gen_envp = \ 1841 if [ -s "$(ENV_FILE)" ]; then \ 1842 $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \ 1843 -D__UBOOT_CONFIG__ \ 1844 -I . -I include -I $(srctree)/include \ 1845 -include linux/kconfig.h -include include/config.h \ 1846 -I$(srctree)/arch/$(ARCH)/include \ 1847 $< -o $@; \ 1848 else \ 1849 rm -f $@; \ 1850 touch $@ ; \ 1851 fi 1852include/generated/env.in: include/generated/env.txt FORCE 1853 $(call cmd,gen_envp) 1854 1855# Regenerate the environment if it changes 1856# We use 'wildcard' since the file is not required to exist (at present), in 1857# which case we don't want this dependency, but instead should create an empty 1858# file 1859# This rule is useful since it shows the source file for the environment 1860quiet_cmd_envc = ENVC $@ 1861 cmd_envc = \ 1862 if [ -f "$<" ]; then \ 1863 cat $< > $@; \ 1864 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \ 1865 echo "Missing file $(ENV_FILE_CFG)"; \ 1866 else \ 1867 touch $@ ; \ 1868 fi 1869 1870include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE 1871 $(call cmd,envc) 1872 1873# Write out the resulting environment, converted to a C string 1874quiet_cmd_gen_envt = ENVT $@ 1875 cmd_gen_envt = \ 1876 awk -f $(srctree)/scripts/env2string.awk $< >$@ 1877$(env_h): include/generated/env.in 1878 $(call cmd,gen_envt) 1879 1880# --------------------------------------------------------------------------- 1881 1882# The actual objects are generated when descending, 1883# make sure no implicit rule kicks in 1884$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1885 1886# Handle descending into subdirectories listed in $(u-boot-dirs) 1887# Preset locale variables to speed up the build process. Limit locale 1888# tweaks to this spot to avoid wrong language settings when running 1889# make menuconfig etc. 1890# Error messages still appears in the original language 1891 1892PHONY += $(u-boot-dirs) 1893$(u-boot-dirs): prepare scripts 1894 $(Q)$(MAKE) $(build)=$@ 1895 1896tools: prepare 1897# The "tools" are needed early 1898$(filter-out tools, $(u-boot-dirs)): tools 1899# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1900# is "yes"), so compile examples after U-Boot is compiled. 1901examples: $(filter-out examples, $(u-boot-dirs)) 1902 1903define filechk_uboot.release 1904 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1905endef 1906 1907# Store (new) UBOOTRELEASE string in include/config/uboot.release 1908include/config/uboot.release: include/config/auto.conf FORCE 1909 $(call filechk,uboot.release) 1910 1911 1912# Things we need to do before we recursively start building the kernel 1913# or the modules are listed in "prepare". 1914# A multi level approach is used. prepareN is processed before prepareN-1. 1915# archprepare is used in arch Makefiles and when processed asm symlink, 1916# version.h and scripts_basic is processed / created. 1917 1918# Listed in dependency order 1919PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1920 1921# prepare3 is used to check if we are building in a separate output directory, 1922# and if so do: 1923# 1) Check that make has not been executed in the kernel src $(srctree) 1924prepare3: include/config/uboot.release 1925ifneq ($(KBUILD_SRC),) 1926 @$(kecho) ' Using $(srctree) as source for U-Boot' 1927 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1928 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1929 echo >&2 " in the '$(srctree)' directory.";\ 1930 /bin/false; \ 1931 fi; 1932endif 1933 1934# prepare2 creates a makefile if using a separate output directory 1935prepare2: prepare3 outputmakefile cfg 1936 1937prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \ 1938 include/config/auto.conf 1939ifeq ($(wildcard $(LDSCRIPT)),) 1940 @echo >&2 " Could not find linker script." 1941 @/bin/false 1942endif 1943 1944ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1945prepare1: $(defaultenv_h) 1946 1947envtools: $(defaultenv_h) 1948endif 1949 1950archprepare: prepare1 scripts_basic 1951 1952prepare0: archprepare FORCE 1953 $(Q)$(MAKE) $(build)=. 1954 1955# All the preparing.. 1956prepare: prepare0 1957 1958# Generate some files 1959# --------------------------------------------------------------------------- 1960 1961# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1962define filechk_version.h 1963 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1964 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1965 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1966 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1967 sed -e "s/^0*//"); \ 1968 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1969 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1970endef 1971 1972# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1973# The BSD date on the other hand behaves different and would produce errors 1974# with the misused '-d' switch. Respect that and search a working date with 1975# well known pre- and suffixes for the GNU variant of date. 1976define filechk_timestamp.h 1977 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1978 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1979 DATE=""; \ 1980 for date in gdate date.gnu date; do \ 1981 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1982 done; \ 1983 if test -n "$${DATE}"; then \ 1984 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1985 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1986 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1987 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1988 else \ 1989 return 42; \ 1990 fi; \ 1991 else \ 1992 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1993 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1994 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1995 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1996 fi) 1997endef 1998 1999define filechk_defaultenv.h 2000 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
2001 tr '\n' '\0' | \ 2002 sed -e 's/\\\x0\s*//g' | \ 2003 xxd -i ; ) 2004endef 2005 2006define filechk_dt.h 2007 (if test -n "$${DEVICE_TREE}"; then \ 2008 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 2009 else \ 2010 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 2011 fi) 2012endef 2013 2014$(version_h): include/config/uboot.release FORCE 2015 $(call filechk,version.h) 2016 2017$(timestamp_h): $(srctree)/Makefile FORCE 2018 $(call filechk,timestamp.h) 2019 2020$(dt_h): $(srctree)/Makefile FORCE 2021 $(call filechk,dt.h) 2022 2023$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 2024 $(call filechk,defaultenv.h) 2025 2026# --------------------------------------------------------------------------- 2027# Devicetree files 2028 2029ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 2030dtstree := arch/$(SRCARCH)/boot/dts 2031endif 2032 2033ifneq ($(dtstree),) 2034 2035%.dtb: prepare3 scripts_dtc 2036 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 2037 2038PHONY += dtbs dtbs_install 2039dtbs: prepare3 scripts_dtc 2040 $(Q)$(MAKE) $(build)=$(dtstree) 2041 2042dtbs_install: 2043 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 2044 2045ifdef CONFIG_OF_EARLY_FLATTREE 2046all: dtbs 2047endif 2048 2049endif 2050 2051# Check dtc and pylibfdt, if DTC is provided, else build them 2052PHONY += scripts_dtc 2053scripts_dtc: scripts_basic 2054 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ 2055 $(MAKE) $(build)=scripts/dtc; \ 2056 else \ 2057 if ! $(DTC) -v >/dev/null; then \ 2058 echo '*** Failed to check dtc version: $(DTC)'; \ 2059 false; \ 2060 else \ 2061 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ 2062 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ 2063 false; \ 2064 else \ 2065 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ 2066 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ 2067 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ 2068 false; \ 2069 fi; \ 2070 fi; \ 2071 fi; \ 2072 fi; \ 2073 fi 2074 2075# --------------------------------------------------------------------------- 2076quiet_cmd_cpp_lds = LDS $@ 2077cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 2078 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 2079 2080u-boot.lds: $(LDSCRIPT) prepare FORCE 2081 $(call if_changed_dep,cpp_lds) 2082 2083spl/u-boot-spl.bin: spl/u-boot-spl 2084 @: 2085 $(SPL_SIZE_CHECK) 2086 2087spl/u-boot-spl-dtb.bin: spl/u-boot-spl 2088 @: 2089 2090spl/u-boot-spl-dtb.hex: spl/u-boot-spl 2091 @: 2092 2093spl/u-boot-spl: tools prepare \ 2094 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 2095 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 2096 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 2097 2098spl/sunxi-spl.bin: spl/u-boot-spl 2099 @: 2100 2101spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2102 @: 2103 2104spl/u-boot-spl.sfp: spl/u-boot-spl 2105 @: 2106 2107spl/boot.bin: spl/u-boot-spl 2108 @: 2109 2110tpl/u-boot-tpl.bin: tools prepare \ 2111 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 2112 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 2113 $(TPL_SIZE_CHECK) 2114 2115TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2116 2117FIND := find 2118FINDFLAGS := -L 2119 2120tags ctags: 2121 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2122 -name '*.[chS]' -print` 2123 ln -s ctags tags 2124 2125etags: 2126 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2127 -name '*.[chS]' -print` 2128cscope: 2129 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2130 cscope.files 2131 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2132 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2133 mv cscope.files.no-symlinks cscope.files 2134 cscope -b -q -k 2135 2136SYSTEM_MAP = \ 2137 $(NM) $1 | \ 2138 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2139 LC_ALL=C sort 2140System.map: u-boot 2141 @$(call SYSTEM_MAP,$<) > $@ 2142 2143######################################################################### 2144 2145# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2146# R_AARCH64_RELATIVE (64-bit). 2147checkarmreloc: u-boot 2148 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 2149 grep R_A | sort -u`"; \ 2150 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2151 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2152 echo "$< contains unexpected relocations: $$RELOC"; \ 2153 false; \ 2154 fi 2155 2156tools/version.h: include/version.h 2157 $(Q)mkdir -p $(dir $@) 2158 $(call if_changed,copy) 2159 2160envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2161 $(Q)$(MAKE) $(build)=tools/env 2162 2163tools-only: export TOOLS_ONLY=y 2164tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2165 $(Q)$(MAKE) $(build)=tools 2166 2167tools-all: export HOST_TOOLS_ALL=y 2168tools-all: envtools tools ; 2169 2170cross_tools: export CROSS_BUILD_TOOLS=y 2171cross_tools: tools ; 2172 2173.PHONY : CHANGELOG 2174CHANGELOG: 2175 git log --no-merges U-Boot-1_1_5.. | \ 2176 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2177 2178######################################################################### 2179 2180### 2181# Cleaning is done on three levels. 2182# make clean Delete most generated files 2183# Leave enough to build external modules 2184# make mrproper Delete the current configuration, and all generated files 2185# make distclean Remove editor backup files, patch leftover files and the like 2186 2187# Directories & files removed with 'make clean' 2188CLEAN_DIRS += $(MODVERDIR) \ 2189 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 2190 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2191 2192CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 2193 include/generated/env.in drivers/video/u_boot_logo.S \ 2194 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \ 2195 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2196 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2197 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \ 2198 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \ 2199 itb.fit.fit itb.fit.itb itb.map spl.map 2200 2201# Directories & files removed with 'make mrproper' 2202MRPROPER_DIRS += include/config include/generated spl tpl \ 2203 .tmp_objdiff doc/output include/asm 2204 2205# Remove include/asm symlink created by U-Boot before v2014.01 2206MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2207 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2208 drivers/video/fonts/*.S include/asm 2209 2210# clean - Delete most, but leave enough to build external modules 2211# 2212clean: rm-dirs := $(CLEAN_DIRS) 2213clean: rm-files := $(CLEAN_FILES) 2214 2215clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2216 2217clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2218 2219PHONY += $(clean-dirs) clean archclean 2220$(clean-dirs): 2221 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2222 2223clean: $(clean-dirs) 2224 $(call cmd,rmdirs) 2225 $(call cmd,rmfiles) 2226 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2227 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2228 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2229 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2230 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2231 -o -name '*.asn1.[ch]' \ 2232 -o -name '*.symtypes' -o -name 'modules.order' \ 2233 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2234 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \ 2235 -o -name 'dsdt_generated.c' \ 2236 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2237 -type f -print | xargs rm -f 2238 2239# mrproper - Delete all generated files, including .config 2240# 2241mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2242mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2243mrproper-dirs := $(addprefix _mrproper_,scripts) 2244 2245PHONY += $(mrproper-dirs) mrproper archmrproper 2246$(mrproper-dirs): 2247 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2248 2249mrproper: clean $(mrproper-dirs) 2250 $(call cmd,rmdirs) 2251 $(call cmd,rmfiles) 2252 @rm -f arch/*/include/asm/arch 2253 2254# distclean 2255# 2256PHONY += distclean 2257 2258distclean: mrproper 2259 @find $(srctree) $(RCS_FIND_IGNORE) \ 2260 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2261 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2262 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2263 -o -name '*.pyc' \) \ 2264 -type f -print | xargs rm -f 2265 @rm -f boards.cfg CHANGELOG 2266 2267# See doc/develop/python_cq.rst 2268PHONY += pylint 2269PYLINT_BASE := scripts/pylint.base 2270PYLINT_CUR := pylint.cur 2271PYLINT_DIFF := pylint.diff 2272pylint: 2273 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)" 2274 $(Q)mkdir -p pylint.out 2275 $(Q)rm -f pylint.out/out* 2276 $(Q)find tools test -name "*.py" \ 2277 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \ 2278 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _ 2279 $(Q)rm -f $(PYLINT_CUR) 2280 $(Q)( cd pylint.out; for f in *; do \ 2281 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \ 2282 done ) | sort > $(PYLINT_CUR) 2283 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \ 2284 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \ 2285 comm -3 $$base $$cur > $(PYLINT_DIFF); \ 2286 if [ -s $(PYLINT_DIFF) ]; then \ 2287 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \ 2288 echo; \ 2289 echo "Added files:"; \ 2290 comm -13 $$base $$cur; \ 2291 echo; \ 2292 echo "Removed files:"; \ 2293 comm -23 $$base $$cur; \ 2294 false; \ 2295 else \ 2296 rm $$base $$cur $(PYLINT_DIFF); \ 2297 fi 2298 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \ 2299 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \ 2300 echo "$$base_file: Score was $$base_val, now $$cur_val"; \ 2301 bad=true; fi; \ 2302 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \ 2303 if $$bad; then \ 2304 echo "Some files have regressed, please fix"; \ 2305 false; \ 2306 else \ 2307 echo "No pylint regressions"; \ 2308 fi 2309 2310backup: 2311 F=`basename $(srctree)` ; cd .. ; \ 2312 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2313 2314help: 2315 @echo 'Cleaning targets:' 2316 @echo ' clean - Remove most generated files but keep the config' 2317 @echo ' mrproper - Remove all generated files + config + various backup files' 2318 @echo ' distclean - mrproper + remove editor backup and patch files' 2319 @echo '' 2320 @echo 'Configuration targets:' 2321 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2322 @echo '' 2323 @echo 'Test targets:' 2324 @echo '' 2325 @echo ' check - Run all automated tests that use sandbox' 2326 @echo ' qcheck - Run quick automated tests that use sandbox' 2327 @echo ' tcheck - Run quick automated tests on tools' 2328 @echo ' pylint - Run pylint on all Python files' 2329 @echo '' 2330 @echo 'Other generic targets:' 2331 @echo ' all - Build all necessary images depending on configuration' 2332 @echo ' tests - Build U-Boot for sandbox and run tests' 2333 @echo '* u-boot - Build the bare u-boot' 2334 @echo ' dir/ - Build all files in dir and below' 2335 @echo ' dir/file.[oisS] - Build specified target only' 2336 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2337 @echo ' (requires a recent binutils and recent build (System.map))' 2338 @echo ' tags/ctags - Generate ctags file for editors' 2339 @echo ' etags - Generate etags file for editors' 2340 @echo ' cscope - Generate cscope index' 2341 @echo ' ubootrelease - Output the release version string (use with make -s)' 2342 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2343 @echo " cfg - Don't build, just create the .cfg files" 2344 @echo " envtools - Build only the target-side environment tools" 2345 @echo '' 2346 @echo 'Static analysers' 2347 @echo ' checkstack - Generate a list of stack hogs' 2348 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2349 @echo '' 2350 @echo 'Documentation targets:' 2351 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2352 @echo '' 2353 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2354 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2355 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2356 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2357 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2358 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2359 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2360 @echo ' 1: warnings which may be relevant and do not occur too often' 2361 @echo ' 2: warnings which occur quite often but may still be relevant' 2362 @echo ' 3: more obscure warnings, can most likely be ignored' 2363 @echo ' Multiple levels can be combined with W=12 or W=123' 2364 @echo '' 2365 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2366 @echo 'For further info see the ./README file' 2367 2368tests check: 2369 $(srctree)/test/run 2370 2371qcheck: 2372 $(srctree)/test/run quick 2373 2374tcheck: 2375 $(srctree)/test/run tools 2376 2377# Documentation targets 2378# --------------------------------------------------------------------------- 2379DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2380 linkcheckdocs dochelp refcheckdocs 2381PHONY += $(DOC_TARGETS) 2382$(DOC_TARGETS): scripts_basic FORCE 2383 $(Q)$(MAKE) $(build)=doc $@ 2384 2385PHONY += checkstack ubootrelease ubootversion 2386 2387checkstack: 2388 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2389 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2390 2391ubootrelease: 2392 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2393 2394ubootversion: 2395 @echo $(UBOOTVERSION) 2396 2397# Single targets 2398# --------------------------------------------------------------------------- 2399# Single targets are compatible with: 2400# - build with mixed source and output 2401# - build with separate output dir 'make O=...' 2402# - external modules 2403# 2404# target-dir => where to store outputfile 2405# build-dir => directory in kernel source tree to use 2406 2407ifeq ($(KBUILD_EXTMOD),) 2408 build-dir = $(patsubst %/,%,$(dir $@)) 2409 target-dir = $(dir $@) 2410else 2411 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2412 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2413 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2414endif 2415 2416%.s: %.c prepare scripts FORCE 2417 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2418%.i: %.c prepare scripts FORCE 2419 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2420%.o: %.c prepare scripts FORCE 2421 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2422%.lst: %.c prepare scripts FORCE 2423 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2424%.s: %.S prepare scripts FORCE 2425 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2426%.o: %.S prepare scripts FORCE 2427 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2428%.symtypes: %.c prepare scripts FORCE 2429 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2430 2431# Modules 2432/: prepare scripts FORCE 2433 $(cmd_crmodverdir) 2434 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2435 $(build)=$(build-dir) 2436%/: prepare scripts FORCE 2437 $(cmd_crmodverdir) 2438 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2439 $(build)=$(build-dir) 2440%.ko: prepare scripts FORCE 2441 $(cmd_crmodverdir) 2442 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2443 $(build)=$(build-dir) $(@:.ko=.o) 2444 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2445 2446quiet_cmd_genenv = GENENV $@ 2447cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \ 2448 sed --in-place -e 's/\x00/\x0A/g' $@ 2449 2450u-boot-initial-env: u-boot.bin 2451 $(call if_changed,genenv) 2452 2453# Consistency checks 2454# --------------------------------------------------------------------------- 2455 2456PHONY += coccicheck 2457 2458coccicheck: 2459 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2460 2461# FIXME Should go into a make.lib or something 2462# =========================================================================== 2463 2464quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2465 cmd_rmdirs = rm -rf $(rm-dirs) 2466 2467quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2468 cmd_rmfiles = rm -f $(rm-files) 2469 2470# read all saved command lines 2471 2472cmd_files := $(wildcard .*.cmd) 2473 2474ifneq ($(cmd_files),) 2475 $(cmd_files): ; # Do not try to update included dependency files 2476 include $(cmd_files) 2477endif 2478 2479endif #ifeq ($(config-targets),1) 2480endif #ifeq ($(mixed-targets),1) 2481endif # skip-makefile 2482 2483PHONY += FORCE 2484FORCE: 2485 2486# Declare the contents of the PHONY variable as phony. We keep that 2487# information in a variable so we can use it in if_changed and friends. 2488.PHONY: $(PHONY) 2489