1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2024 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/^[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\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 $(MK_ARCH), "arm" "armv7" "armv7a" "armv7l")) 34 export HOST_ARCH=$(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 -Wno-unknown-attribute \ 427 -D__CHECK_ENDIAN__ $(CF) 428 429KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 430 431KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 432 -Wno-format-security \ 433 -fno-builtin -ffreestanding $(CSTD_FLAG) 434KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 435KBUILD_AFLAGS := -D__ASSEMBLY__ 436KBUILD_LDFLAGS := 437 438ifeq ($(cc-name),clang) 439ifneq ($(CROSS_COMPILE),) 440CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 441LDPPFLAGS += $(CLANG_TARGET) 442GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 443CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 444GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 445endif 446ifneq ($(GCC_TOOLCHAIN),) 447CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 448endif 449KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 450KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 451KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 452KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 453endif 454 455# Don't generate position independent code 456KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 457KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 458 459# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 460UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 461UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 462 463export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 464export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 465export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 466export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 467export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 468export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 469 470export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 471export KBUILD_CFLAGS KBUILD_AFLAGS 472 473export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 474 475# When compiling out-of-tree modules, put MODVERDIR in the module 476# tree rather than in the kernel tree. The kernel tree might 477# even be read-only. 478export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 479 480# Files to ignore in find ... statements 481 482export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 483 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 484 -prune -o 485export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 486 --exclude CVS --exclude .pc --exclude .hg --exclude .git 487 488export PYTHON_ENABLE 489 490# This is y if U-Boot should not build any Python tools or libraries. Typically 491# you would need to set this if those tools/libraries (typically binman and 492# pylibfdt) cannot be built by your environment and are provided separately. 493ifeq ($(NO_PYTHON),) 494PYTHON_ENABLE=y 495endif 496 497# =========================================================================== 498# Rules shared between *config targets and build targets 499 500# Basic helpers built in scripts/ 501PHONY += scripts_basic 502scripts_basic: 503 $(Q)$(MAKE) $(build)=scripts/basic 504 $(Q)rm -f .tmp_quiet_recordmcount 505 506# To avoid any implicit rule to kick in, define an empty command. 507scripts/basic/%: scripts_basic ; 508 509PHONY += outputmakefile 510# outputmakefile generates a Makefile in the output directory, if using a 511# separate output directory. This allows convenient use of make in the 512# output directory. 513outputmakefile: 514ifneq ($(KBUILD_SRC),) 515 $(Q)ln -fsn $(srctree) source 516 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) 517endif 518 519# To make sure we do not include .config for any of the *config targets 520# catch them early, and hand them over to scripts/kconfig/Makefile 521# It is allowed to specify more targets when calling make, including 522# mixing *config targets and build targets. 523# For example 'make oldconfig all'. 524# Detect when mixed targets is specified, and make a second invocation 525# of make so .config is not included in this case either (for *config). 526 527version_h := include/generated/version_autogenerated.h 528timestamp_h := include/generated/timestamp_autogenerated.h 529defaultenv_h := include/generated/defaultenv_autogenerated.h 530dt_h := include/generated/dt.h 531env_h := include/generated/environment.h 532 533no-dot-config-targets := clean clobber mrproper distclean \ 534 help %docs check% coccicheck \ 535 ubootversion backup tests check pcheck qcheck tcheck \ 536 pylint pylint_err _pip pip pip_test pip_release 537 538config-targets := 0 539mixed-targets := 0 540dot-config := 1 541 542ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 543 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 544 dot-config := 0 545 endif 546endif 547 548ifeq ($(KBUILD_EXTMOD),) 549 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 550 config-targets := 1 551 ifneq ($(words $(MAKECMDGOALS)),1) 552 mixed-targets := 1 553 endif 554 endif 555endif 556 557ifeq ($(mixed-targets),1) 558# =========================================================================== 559# We're called with mixed targets (*config and build targets). 560# Handle them one by one. 561 562PHONY += $(MAKECMDGOALS) __build_one_by_one 563 564$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 565 @: 566 567__build_one_by_one: 568 $(Q)set -e; \ 569 for i in $(MAKECMDGOALS); do \ 570 $(MAKE) -f $(srctree)/Makefile $$i; \ 571 done 572 573else 574ifeq ($(config-targets),1) 575# =========================================================================== 576# *config targets only - make sure prerequisites are updated, and descend 577# in scripts/kconfig to make the *config target 578 579KBUILD_DEFCONFIG := sandbox_defconfig 580export KBUILD_DEFCONFIG KBUILD_KCONFIG 581 582config: scripts_basic outputmakefile FORCE 583 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 584 585%config: scripts_basic outputmakefile FORCE 586 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 587 588else 589# =========================================================================== 590# Build targets only - this includes vmlinux, arch specific targets, clean 591# targets and others. In general all targets except *config targets. 592 593# Additional helpers built in scripts/ 594# Carefully list dependencies so we do not try to build scripts twice 595# in parallel 596PHONY += scripts 597scripts: scripts_basic scripts_dtc include/config/auto.conf 598 $(Q)$(MAKE) $(build)=$(@) 599 600ifeq ($(dot-config),1) 601# Read in config 602-include include/config/auto.conf 603 604# Read in dependencies to all Kconfig* files, make sure to run 605# oldconfig if changes are detected. 606-include include/config/auto.conf.cmd 607 608# To avoid any implicit rule to kick in, define an empty command 609$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 610 611# If .config is newer than include/config/auto.conf, someone tinkered 612# with it and forgot to run make oldconfig. 613# if auto.conf.cmd is missing then we are probably in a cleaned tree so 614# we execute the config step to be sure to catch updated Kconfig files 615include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 616 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 617 @# If the following part fails, include/config/auto.conf should be 618 @# deleted so "make silentoldconfig" will be re-run on the next build. 619 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 620 { rm -f include/config/auto.conf; false; } 621 @# include/config.h has been updated after "make silentoldconfig". 622 @# We need to touch include/config/auto.conf so it gets newer 623 @# than include/config.h. 624 @# Otherwise, 'make silentoldconfig' would be invoked twice. 625 $(Q)touch include/config/auto.conf 626 627u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 628 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 629 630-include include/autoconf.mk 631-include include/autoconf.mk.dep 632 633# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 634# is up-to-date. When we switch to a different board configuration, old CONFIG 635# macros are still remaining in include/config/auto.conf. Without the following 636# gimmick, wrong config.mk would be included leading nasty warnings/errors. 637ifneq ($(wildcard $(KCONFIG_CONFIG)),) 638ifneq ($(wildcard include/config/auto.conf),) 639autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 640 include/config/auto.conf) 641ifeq ($(autoconf_is_old),) 642include config.mk 643include arch/$(ARCH)/Makefile 644endif 645endif 646endif 647 648# These are set by the arch-specific config.mk. Make sure they are exported 649# so they can be used when building an EFI application. 650export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 651export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 652export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 653export CFLAGS_EFI # Compiler flags to add when building EFI app 654export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 655export EFI_TARGET # binutils target if EFI is natively supported 656 657export LTO_ENABLE 658 659# This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO 660ifeq ($(NO_LTO),) 661LTO_ENABLE=$(if $(CONFIG_LTO),y) 662endif 663 664# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 665# that (or fail if absent). Otherwise, search for a linker script in a 666# standard location. 667 668ifndef LDSCRIPT 669 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 670 ifdef CONFIG_SYS_LDSCRIPT 671 # need to strip off double quotes 672 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 673 endif 674endif 675 676# If there is no specified link script, we look in a number of places for it 677ifndef LDSCRIPT 678 ifeq ($(wildcard $(LDSCRIPT)),) 679 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 680 endif 681 ifeq ($(wildcard $(LDSCRIPT)),) 682 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 683 endif 684 ifeq ($(wildcard $(LDSCRIPT)),) 685 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 686 endif 687endif 688 689else 690# Dummy target needed, because used as prerequisite 691include/config/auto.conf: ; 692endif # $(dot-config) 693 694ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 695KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \ 696 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) 697# Avoid false positives -Wmaybe-uninitialized 698# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 699KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized 700KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) 701endif 702 703# 704# Xtensa linker script cannot be preprocessed with -ansi because of 705# preprocessor operations on strings that don't make C identifiers. 706# 707ifeq ($(CONFIG_XTENSA),) 708LDPPFLAGS += -ansi 709endif 710 711ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 712KBUILD_CFLAGS += -Os 713endif 714 715ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED 716KBUILD_CFLAGS += -O2 717endif 718 719ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 720KBUILD_CFLAGS += -Og -Wno-maybe-uninitialized 721# Avoid false positives -Wmaybe-uninitialized 722# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 723KBUILD_CFLAGS += -Wno-maybe-uninitialized 724endif 725 726LTO_CFLAGS := 727LTO_FINAL_LDFLAGS := 728export LTO_CFLAGS LTO_FINAL_LDFLAGS 729ifeq ($(LTO_ENABLE),y) 730 ifeq ($(cc-name),clang) 731 LTO_CFLAGS += -DLTO_ENABLE -flto 732 LTO_FINAL_LDFLAGS += -flto 733 734 AR = $(shell $(CC) -print-prog-name=llvm-ar) 735 NM = $(shell $(CC) -print-prog-name=llvm-nm) 736 else 737 NPROC := $(shell nproc 2>/dev/null || echo 1) 738 LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC) 739 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 740 741 # use plugin aware tools 742 AR = $(CROSS_COMPILE)gcc-ar 743 NM = $(CROSS_COMPILE)gcc-nm 744 endif 745 746 CFLAGS_NON_EFI += $(LTO_CFLAGS) 747 748 KBUILD_CFLAGS += $(LTO_CFLAGS) 749endif 750 751ifeq ($(CONFIG_STACKPROTECTOR),y) 752KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 753KBUILD_CFLAGS += $(call cc-option,-mstack-protector-guard=global) 754CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 755else 756KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 757endif 758KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 759 760# disable pointer signed / unsigned warnings in gcc 4.0 761KBUILD_CFLAGS += -Wno-pointer-sign 762 763# disable stringop warnings in gcc 8+ 764KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 765 766KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 767KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 768KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 769 770# Enabled with W=2, disabled by default as noisy 771KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 772 773# change __FILE__ to the relative path from the srctree 774KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 775 776KBUILD_CFLAGS += -gdwarf-4 777# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 778# option to the assembler. 779KBUILD_AFLAGS += -gdwarf-4 780 781# Report stack usage if supported 782# ARC tools based on GCC 7.1 has an issue with stack usage 783# with naked functions, see commit message for more details 784ifndef CONFIG_ARC 785ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 786 KBUILD_CFLAGS += -fstack-usage 787endif 788endif 789 790KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 791KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 792 793ifdef CONFIG_CC_IS_CLANG 794KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 795KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 796KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 797KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 798# Quiet clang warning: comparison of unsigned expression < 0 is always false 799KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 800# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 801# source of a reference will be _MergedGlobals and not on of the whitelisted names. 802# See modpost pattern 2 803KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 804KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 805KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype) 806endif 807 808# These warnings generated too much noise in a regular build. 809# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 810KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 811 812# Prohibit date/time macros, which would make the build non-deterministic 813KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 814 815include scripts/Makefile.extrawarn 816 817# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 818KBUILD_CPPFLAGS += $(KCPPFLAGS) 819KBUILD_AFLAGS += $(KAFLAGS) 820KBUILD_CFLAGS += $(KCFLAGS) 821 822KBUILD_LDFLAGS += -z noexecstack 823KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) 824 825KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 826 827# Use UBOOTINCLUDE when you must reference the include/ directory. 828# Needed to be compatible with the O= option 829UBOOTINCLUDE := \ 830 -Iinclude \ 831 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 832 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 833 $(if $(CONFIG_HAS_THUMB2), \ 834 $(if $(CONFIG_CPU_V7M), \ 835 -I$(srctree)/arch/arm/thumb1/include), \ 836 -I$(srctree)/arch/arm/thumb1/include)) \ 837 -I$(srctree)/arch/$(ARCH)/include \ 838 -include $(srctree)/include/linux/kconfig.h \ 839 -I$(srctree)/dts/upstream/include 840 841NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 842 843# FIX ME 844cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 845 $(NOSTDINC_FLAGS) 846c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 847 848######################################################################### 849# U-Boot objects....order is important (i.e. start must be first) 850 851HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 852 853libs-$(CONFIG_API) += api/ 854libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 855libs-y += boot/ 856libs-$(CONFIG_CMDLINE) += cmd/ 857libs-y += common/ 858libs-$(CONFIG_OF_EMBED) += dts/ 859libs-y += env/ 860libs-y += lib/ 861libs-y += fs/ 862libs-y += net/ 863libs-y += disk/ 864libs-y += drivers/ 865libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 866libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 867libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 868libs-y += drivers/usb/cdns3/ 869libs-y += drivers/usb/dwc3/ 870libs-y += drivers/usb/common/ 871libs-y += drivers/usb/emul/ 872libs-y += drivers/usb/eth/ 873libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 874libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 875libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 876libs-y += drivers/usb/host/ 877libs-y += drivers/usb/mtu3/ 878libs-y += drivers/usb/musb/ 879libs-y += drivers/usb/musb-new/ 880libs-y += drivers/usb/isp1760/ 881libs-y += drivers/usb/phy/ 882libs-y += drivers/usb/ulpi/ 883ifdef CONFIG_POST 884libs-y += post/ 885endif 886libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/ 887libs-$(CONFIG_UT_ENV) += test/env/ 888libs-$(CONFIG_UT_OPTEE) += test/optee/ 889libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 890 891libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/) 892 893libs-y := $(sort $(libs-y)) 894 895u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 896 897u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 898 899libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 900 901u-boot-init := $(head-y) 902u-boot-main := $(libs-y) 903 904 905# Add GCC lib 906ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 907PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 908else 909ifndef CONFIG_CC_IS_CLANG 910PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 911endif 912endif 913PLATFORM_LIBS += $(PLATFORM_LIBGCC) 914 915ifdef CONFIG_CC_COVERAGE 916KBUILD_CFLAGS += --coverage 917PLATFORM_LIBGCC += -lgcov 918endif 919 920export PLATFORM_LIBS 921export PLATFORM_LIBGCC 922 923# Special flags for CPP when processing the linker script. 924# Pass the version down so we can handle backwards compatibility 925# on the fly. 926LDPPFLAGS += \ 927 -include $(srctree)/include/u-boot/u-boot.lds.h \ 928 -DCPUDIR=$(CPUDIR) \ 929 $(shell $(LD) --version | \ 930 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 931 932######################################################################### 933######################################################################### 934 935ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 936BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 937else 938BOARD_SIZE_CHECK = 939endif 940 941ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 942SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 943else 944SPL_SIZE_CHECK = 945endif 946 947ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 948TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 949else 950TPL_SIZE_CHECK = 951endif 952 953ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0) 954VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT)) 955else 956VPL_SIZE_CHECK = 957endif 958 959# Statically apply RELA-style relocations (currently arm64 only) 960# This is useful for arm64 where static relocation needs to be performed on 961# the raw binary, but certain simulators only accept an ELF file (but don't 962# do the relocation). 963ifneq ($(CONFIG_STATIC_RELA),) 964# $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base 965quiet_cmd_static_rela = RELOC $@ 966cmd_static_rela = \ 967 tools/relocate-rela $(3) $(2) 968else 969quiet_cmd_static_rela = 970cmd_static_rela = 971endif 972 973# Always append INPUTS so that arch config.mk's can add custom ones 974INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 975 976ifeq ($(CONFIG_SPL_FSL_PBL),y) 977INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 978else 979ifneq ($(CONFIG_NXP_ESBC), y) 980# For Secure Boot The Image needs to be signed and Header must also 981# be included. So The image has to be built explicitly 982INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 983endif 984endif 985INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 986ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 987INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 988else 989ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 990INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 991else 992INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 993endif 994endif 995INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 996INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin 997 998# Allow omitting the .dtb output if it is not normally used 999INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb) 1000ifeq ($(CONFIG_SPL_FRAMEWORK),y) 1001INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 1002endif 1003INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb 1004ifneq ($(CONFIG_SPL_TARGET),) 1005INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 1006endif 1007INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 1008INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 1009INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 1010 1011# Generate this input file for binman 1012ifeq ($(CONFIG_SPL),) 1013INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 1014endif 1015 1016# Add optional build target if defined in board/cpu/soc headers 1017ifneq ($(CONFIG_BUILD_TARGET),) 1018INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 1019endif 1020 1021ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1022INPUTS-y += init_sp_bss_offset_check 1023endif 1024 1025ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_) 1026INPUTS-y += u-boot.img 1027endif 1028 1029INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 1030 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1031 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 1032 1033LDFLAGS_u-boot += $(LDFLAGS_FINAL) 1034 1035# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 1036LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1037 1038# ld.lld support 1039LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs) 1040 1041LDFLAGS_u-boot += --build-id=none 1042 1043ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1044LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE) 1045endif 1046 1047# make the checker run with the right architecture 1048CHECKFLAGS += --arch=$(ARCH) 1049 1050# insure the checker run with the right endianness 1051CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1052 1053# the checker needs the correct machine size 1054CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1055 1056# Normally we fill empty space with 0xff 1057quiet_cmd_objcopy = OBJCOPY $@ 1058cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1059 $(OBJCOPYFLAGS_$(@F)) $< $@ 1060 1061# Provide a version which does not do this, for use by EFI 1062quiet_cmd_zobjcopy = OBJCOPY $@ 1063cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1064 1065quiet_cmd_efipayload = OBJCOPY $@ 1066cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1067 1068MKIMAGEOUTPUT ?= /dev/null 1069 1070quiet_cmd_mkimage = MKIMAGE $@ 1071cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1072 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1073 1074quiet_cmd_mkfitimage = MKIMAGE $@ 1075cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1076 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1077 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1078 1079quiet_cmd_cat = CAT $@ 1080cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1081 1082append = cat $(filter-out $< $(PHONY), $^) >> $@ 1083 1084quiet_cmd_pad_cat = CAT $@ 1085cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1086 1087quiet_cmd_lzma = LZMA $@ 1088cmd_lzma = lzma -c -z -k -9 $< > $@ 1089 1090cfg: u-boot.cfg 1091 1092quiet_cmd_ofcheck = OFCHK $2 1093cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \ 1094 $(srctree)/scripts/of_allowlist.txt 1095 1096# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1097got = $(foreach cfg,$(1),$($(cfg))) 1098 1099# expected value 'y for each one 1100expect = $(foreach cfg,$(1),y) 1101 1102# Show a deprecation message 1103# Args: 1104# 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1105# 2: Name of component (e.g . "Ethernet drivers") 1106# 3: Release deadline (e.g. "v202.07") 1107# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1108# Note: Script avoids bash construct, hence the strange double 'if' 1109# (patches welcome!) 1110define deprecated 1111 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1112 echo >&2 "===================== WARNING ======================"; \ 1113 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1114 echo >&2 "for $(2)). Please update the board to use"; \ 1115 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1116 echo >&2 "update by the deadline may result in board removal."; \ 1117 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \ 1118 echo >&2 "===================================================="; \ 1119 fi; fi 1120 1121endef 1122 1123# Timestamp file to make sure that binman always runs 1124.binman_stamp: $(INPUTS-y) FORCE 1125ifeq ($(CONFIG_BINMAN),y) 1126 $(call if_changed,binman) 1127endif 1128 @touch $@ 1129 1130all: .binman_stamp 1131 1132ifeq ($(CONFIG_DEPRECATED),y) 1133 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1134endif 1135ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) 1136 @echo >&2 "===================== WARNING ======================" 1137 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1138 @echo >&2 "be used for debugging purposes. Please use" 1139 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1140 @echo >&2 "See doc/develop/devicetree/control.rst for more info." 1141 @echo >&2 "====================================================" 1142endif 1143ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1144 @echo >&2 "===================== WARNING ======================" 1145 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1146 @echo >&2 "to binman instead, to avoid the proliferation of" 1147 @echo >&2 "arch-specific scripts with no tests." 1148 @echo >&2 "====================================================" 1149endif 1150 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1151 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1152 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1153 @# CFG_SYS_TIMER_RATE has brackets in it for some boards which 1154 @# confuses this rule. Use if() to send just a single character which 1155 @# is enable to tell 'deprecated' that one of these symbols exists 1156 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x)) 1157 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL)) 1158 @# Check that this build does not override OF_HAS_PRIOR_STAGE by 1159 @# disabling OF_BOARD. 1160 $(call cmd,ofcheck,$(KCONFIG_CONFIG)) 1161 1162PHONY += dtbs dtbs_check 1163dtbs: dts/dt.dtb 1164 @: 1165dts/dt.dtb: dtbs_prepare u-boot 1166 $(Q)$(MAKE) $(build)=dts dtbs 1167 1168dtbs_prepare: prepare3 1169 1170ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),) 1171export CHECK_DTBS=y 1172endif 1173 1174ifneq ($(CHECK_DTBS),) 1175dtbs_prepare: dt_binding_check 1176endif 1177 1178dtbs_check: dt_binding_check dtbs 1179 1180DT_BINDING_DIR := dts/upstream/Bindings 1181dt_binding_check: scripts_dtc 1182 $(Q)$(MAKE) $(build)=$(DT_BINDING_DIR) $(DT_BINDING_DIR)/processed-schema.json 1183 1184quiet_cmd_copy = COPY $@ 1185 cmd_copy = cp $< $@ 1186 1187ifeq ($(CONFIG_OF_UPSTREAM),y) 1188ifeq ($(CONFIG_ARM64),y) 1189dt_dir := dts/upstream/src/arm64 1190else 1191dt_dir := dts/upstream/src/$(ARCH) 1192endif 1193else 1194dt_dir := arch/$(ARCH)/dts 1195endif 1196 1197ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1198 1199ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1200FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1201else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1202FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1203else 1204FINAL_DTB_CONTAINER = fit-dtb.blob 1205endif 1206 1207fit-dtb.blob.gz: fit-dtb.blob 1208 @gzip -kf9 $< > $@ 1209 1210fit-dtb.blob.lzo: fit-dtb.blob 1211 @lzop -f9 $< > $@ 1212 1213fit-dtb.blob: dts/dt.dtb FORCE 1214 $(call if_changed,mkimage) 1215ifneq ($(SOURCE_DATE_EPOCH),) 1216 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1217 chmod 0600 fit-dtb.blob 1218endif 1219 1220MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1221 -a 0 -e 0 -E \ 1222 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1223 1224MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1225 1226ifneq ($(EXT_DTB),) 1227u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1228 $(call if_changed,cat) 1229else 1230u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1231 $(call if_changed,cat) 1232endif 1233 1234u-boot.bin: u-boot-fit-dtb.bin FORCE 1235 $(call if_changed,copy) 1236 1237ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1238u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1239 $(call if_changed,cat) 1240endif 1241 1242else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.) 1243 1244ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1245u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1246 $(call if_changed,cat) 1247endif 1248 1249u-boot.bin: u-boot-dtb.bin FORCE 1250 $(call if_changed,copy) 1251 1252else 1253u-boot.bin: u-boot-nodtb.bin FORCE 1254 $(call if_changed,copy) 1255endif 1256 1257# we call Makefile in arch/arm/mach-imx which 1258# has targets which are dependent on targets defined 1259# here. make could not resolve them and we must ensure 1260# that they are finished before calling imx targets 1261ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1262IMX_DEPS = u-boot-fit-dtb.bin 1263endif 1264 1265%.imx: $(IMX_DEPS) %.bin 1266 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1267 $(BOARD_SIZE_CHECK) 1268 1269%.vyb: %.imx 1270 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1271 1272quiet_cmd_copy = COPY $@ 1273 cmd_copy = cp $< $@ 1274 1275u-boot.dtb: dts/dt.dtb 1276 $(call cmd,copy) 1277 1278OBJCOPYFLAGS_u-boot.hex := -O ihex 1279 1280OBJCOPYFLAGS_u-boot.srec := -O srec 1281 1282u-boot.hex u-boot.srec: u-boot FORCE 1283 $(call if_changed,objcopy) 1284 1285OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1286 1287u-boot-elf.srec: u-boot.elf FORCE 1288 $(call if_changed,objcopy) 1289 1290OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1291 1292spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1293 $(call if_changed,objcopy) 1294 1295%.scif: %.srec 1296 $(Q)$(MAKE) $(build)=arch/arm/mach-renesas $@ 1297 1298OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1299 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1300 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec)) 1301 1302binary_size_check: u-boot-nodtb.bin FORCE 1303 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{ print $$1 }') ; \ 1304 map_size=$(shell cat u-boot.map | \ 1305 awk ' \ 1306 /_image_copy_start/ { start = $$1 } \ 1307 /_image_binary_end/ { end = $$1 } \ 1308 END { \ 1309 if (start != "" && end != "") \ 1310 print end " " start; \ 1311 }' \ 1312 | sh -c 'read end start && echo $$((end - start))'); \ 1313 if [ -n "$$map_size" ]; then \ 1314 if test $$map_size -ne $$file_size; then \ 1315 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1316 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1317 exit 1; \ 1318 fi; \ 1319 fi 1320 1321ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1322ifneq ($(CONFIG_SYS_MALLOC_F),) 1323subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1324else 1325subtract_sys_malloc_f_len = true 1326endif 1327# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1328# so low that the DTB could probably use 90%+ of the available space, for 1329# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1330# safe for now and tweak this later if space becomes tight. 1331# A rejected alternative would be to check that some absolute minimum stack 1332# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1333# deliberately build-specific, to take account of build-to-build stack usage 1334# differences due to different feature sets, there is no common absolute value 1335# to check against. 1336init_sp_bss_offset_check: u-boot.dtb FORCE 1337 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1338 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1339 $(subtract_sys_malloc_f_len) ; \ 1340 quarter_space=$$(($${space} / 4)) ; \ 1341 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1342 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1343 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1344 exit 1 ; \ 1345 fi 1346endif 1347 1348shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1349 1350quiet_cmd_objcopy_uboot = OBJCOPY $@ 1351ifdef cmd_static_rela 1352cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; } 1353else 1354cmd_objcopy_uboot = $(cmd_objcopy) 1355endif 1356 1357u-boot-nodtb.bin: u-boot FORCE 1358 $(call if_changed,objcopy_uboot) 1359 $(BOARD_SIZE_CHECK) 1360 1361u-boot.ldr: u-boot 1362 $(CREATE_LDR_ENV) 1363 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS) 1364 $(BOARD_SIZE_CHECK) 1365 1366# binman 1367# --------------------------------------------------------------------------- 1368# Use 'make BINMAN_DEBUG=1' to enable debugging 1369# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1370default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1371 1372quiet_cmd_binman = BINMAN $@ 1373cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1374 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \ 1375 --toolpath $(objtree)/tools \ 1376 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1377 build -u -d u-boot.dtb -O . -m \ 1378 --allow-missing $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \ 1379 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1380 -I $(dt_dir) -a of-list=$(CONFIG_OF_LIST) \ 1381 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \ 1382 -a atf-bl31-path=${BL31} \ 1383 -a tee-os-path=${TEE} \ 1384 -a ti-dm-path=${TI_DM} \ 1385 -a opensbi-path=${OPENSBI} \ 1386 -a default-dt=$(default_dt) \ 1387 -a scp-path=$(SCP) \ 1388 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \ 1389 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1390 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1391 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ 1392 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ 1393 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \ 1394 $(BINMAN_$(@F)) 1395 1396OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1397 1398OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1399 1400u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1401 $(call if_changed,objcopy) 1402 1403# Boards with more complex image requirements can provide an .its source file 1404# or a generator script 1405# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1406# binman instead. 1407ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1408U_BOOT_ITS := u-boot.its 1409$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1410 $(call if_changed,copy) 1411else 1412ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1413U_BOOT_ITS := u-boot.its 1414$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1415 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1416 $(patsubst %,$(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1417endif 1418endif 1419 1420ifdef CONFIG_SPL_LOAD_FIT 1421MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1422 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1423 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1424 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1425 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1426 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1427 $(patsubst %,-b $(dt_dir)/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1428else 1429MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1430 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1431 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1432MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1433 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1434 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1435u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1436endif 1437 1438MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1439 1440# Some boards have the kwbimage.cfg file written in advance, while some 1441# other boards generate it on the fly during the build in the build tree. 1442# Let's check if the file exists in the build tree first, otherwise we 1443# fall back to use the one in the source tree. 1444KWD_CONFIG_FILE = $(shell \ 1445 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1446 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1447 else \ 1448 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1449 fi) 1450 1451MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1452 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) 1453 1454MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1455 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1456 $(if $(KEYDIR),-k $(KEYDIR)) 1457 1458MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1459 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage 1460 1461UBOOT_BIN := u-boot.bin 1462 1463MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1464 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1465 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1466 1467u-boot.bin.lzma: u-boot.bin FORCE 1468 $(call if_changed,lzma) 1469 1470u-boot-lzma.img: u-boot.bin.lzma FORCE 1471 $(call if_changed,mkimage) 1472 1473u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1474 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1475 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1476 ,$(UBOOT_BIN)) FORCE 1477 $(call if_changed,mkimage) 1478 $(BOARD_SIZE_CHECK) 1479 1480ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1481MKIMAGEFLAGS_u-boot.itb = 1482else 1483MKIMAGEFLAGS_u-boot.itb = -E 1484endif 1485MKIMAGEFLAGS_u-boot.itb += -B 0x8 1486 1487ifdef U_BOOT_ITS 1488u-boot.itb: u-boot-nodtb.bin \ 1489 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1490 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \ 1491 $(U_BOOT_ITS) FORCE 1492 $(call if_changed,mkfitimage) 1493 $(BOARD_SIZE_CHECK) 1494endif 1495 1496u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1497 $(call if_changed,mkimage) 1498 $(BOARD_SIZE_CHECK) 1499 1500u-boot.dis: u-boot 1501 $(OBJDUMP) -d $< > $@ 1502 1503ifneq ($(CONFIG_SPL_PAYLOAD),) 1504SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1505else 1506SPL_PAYLOAD := u-boot.bin 1507endif 1508 1509SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1510 1511OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1512 --pad-to=$(CONFIG_SPL_PAD_TO) 1513u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1514 $(call if_changed,pad_cat) 1515 1516ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1517MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1518 1519lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1520 $(call if_changed,mkimage) 1521 1522OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1523 1524lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1525 $(call if_changed,objcopy) 1526 1527OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1528 1529lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1530 $(call if_changed,objcopy) 1531 1532lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1533 $(call if_changed,cat) 1534 1535endif 1536 1537OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1538 --pad-to=$(CONFIG_TPL_PAD_TO) 1539tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1540 $(call if_changed,pad_cat) 1541 1542SPL: spl/u-boot-spl.bin FORCE 1543 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1544 1545#ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1546ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1547u-boot.cnt: u-boot.bin FORCE 1548 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1549 1550flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1551 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1552else 1553ifeq ($(CONFIG_BINMAN),y) 1554flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1555 $(call if_changed,binman) 1556else 1557flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1558 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1559endif 1560endif 1561#endif 1562 1563u-boot.uim: u-boot.bin FORCE 1564 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1565 1566u-boot-nand.imx: u-boot.imx FORCE 1567 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1568 1569u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1570 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1571 1572MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE) 1573 1574u-boot.ubl: u-boot-with-spl.bin FORCE 1575 $(call if_changed,mkimage) 1576 1577MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \ 1578 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1579spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1580 $(call if_changed,mkimage) 1581 1582OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1583u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1584 $(call if_changed,pad_cat) 1585 1586u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1587 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1588u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1589 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1590 1591MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1592 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1593spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1594 $(call if_changed,mkimage) 1595 1596ifneq ($(CONFIG_ARCH_SOCFPGA),) 1597quiet_cmd_gensplx4 = GENSPLX4 $@ 1598cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1599 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1600 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1601 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1602 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1603spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1604 $(call if_changed,gensplx4) 1605 1606quiet_cmd_socboot = SOCBOOT $@ 1607cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1608u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1609 $(call if_changed,socboot) 1610 1611quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1612cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1613 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1614 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1615 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1616 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1617 { rm -f $@ spl/u-boot-spl.pad; false; } 1618u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1619 $(call if_changed,gensplpadx4) 1620 1621quiet_cmd_socnandboot = SOCNANDBOOT $@ 1622cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1623u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1624 $(call if_changed,socnandboot) 1625 1626endif 1627 1628ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1629u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE 1630 $(call if_changed,binman) 1631 1632OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1633u-boot-br.bin: u-boot FORCE 1634 $(call if_changed,objcopy) 1635endif 1636 1637quiet_cmd_ldr = LD $@ 1638cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1639 $(filter-out FORCE,$^) -o $@ 1640 1641ifdef CONFIG_X86 1642OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1643u-boot-x86-start16.bin: u-boot FORCE 1644 $(call if_changed,objcopy) 1645 1646OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1647u-boot-x86-reset16.bin: u-boot FORCE 1648 $(call if_changed,objcopy) 1649 1650endif # CONFIG_X86 1651 1652OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1653u-boot-app.efi: u-boot FORCE 1654 $(call if_changed,zobjcopy) 1655 1656u-boot.bin.o: u-boot.bin FORCE 1657 $(call if_changed,efipayload) 1658 1659u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1660 $(call if_changed_dep,cpp_lds) 1661 1662# Rule to link the EFI payload which contains a stub and a U-Boot binary 1663quiet_cmd_u-boot_payload ?= LD $@ 1664 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1665 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1666 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1667 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1668 1669u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1670 $(call if_changed,u-boot_payload) 1671 1672OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1673u-boot-payload.efi: u-boot-payload FORCE 1674 $(call if_changed,zobjcopy) 1675 1676u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1677 $(call if_changed,cat) 1678 1679#Add a target to create boot binary having SPL binary in PBI format 1680#concatenated with u-boot binary. It is need by PowerPC SoC having 1681#internal SRAM <= 512KB. 1682MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1683 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1684 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1685 1686spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1687 $(call if_changed,mkimage) 1688 1689ifeq ($(ARCH),arm) 1690UBOOT_BINLOAD := u-boot.img 1691else 1692UBOOT_BINLOAD := u-boot.bin 1693endif 1694 1695OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1696 --gap-fill=0xff 1697 1698u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) 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 $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \ 1704 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \ 1705 -Ttext=$(CONFIG_TEXT_BASE) 1706u-boot.elf: u-boot.bin u-boot-elf.lds 1707 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1708 $(call if_changed,u-boot-elf) 1709 1710u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1711 $(call if_changed_dep,cpp_lds) 1712 1713# MediaTek's ARM-based u-boot needs a header to contains its load address 1714# which is parsed by the BootROM. 1715# If the SPL build is enabled, the header will be added to the spl binary, 1716# and the spl binary and the u-boot.img will be combined into one file. 1717# Otherwise the header will be added to the u-boot.bin directly. 1718 1719ifeq ($(CONFIG_SPL),y) 1720spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1721 1722u-boot-mtk.bin: u-boot-with-spl.bin 1723 $(call if_changed,copy) 1724else 1725MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1726 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1727 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1728 1729u-boot-mtk.bin: u-boot.bin FORCE 1730 $(call if_changed,mkimage) 1731endif 1732 1733quiet_cmd_endian_swap = SWAP $@ 1734 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1735 1736u-boot-swap.bin: u-boot.bin FORCE 1737 $(call if_changed,endian_swap) 1738 1739ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1740 1741# Generate linker list symbols references to force compiler to not optimize 1742# them away when compiling with LTO 1743ifeq ($(LTO_ENABLE),y) 1744u-boot-keep-syms-lto := keep-syms-lto.o 1745u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1746 1747quiet_cmd_keep_syms_lto = KSL $@ 1748 cmd_keep_syms_lto = \ 1749 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1750 1751quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1752 cmd_keep_syms_lto_cc = \ 1753 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1754 1755$(u-boot-keep-syms-lto_c): $(u-boot-main) 1756 $(call if_changed,keep_syms_lto) 1757$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1758 $(call if_changed,keep_syms_lto_cc) 1759else 1760u-boot-keep-syms-lto := 1761endif 1762 1763# Rule to link u-boot 1764# May be overridden by arch/$(ARCH)/config.mk 1765ifeq ($(LTO_ENABLE),y) 1766quiet_cmd_u-boot__ ?= LTO $@ 1767 cmd_u-boot__ ?= \ 1768 $(CC) -nostdlib -nostartfiles \ 1769 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1770 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1771 -T u-boot.lds $(u-boot-init) \ 1772 -Wl,--whole-archive \ 1773 $(u-boot-main) \ 1774 $(u-boot-keep-syms-lto) \ 1775 $(PLATFORM_LIBS) \ 1776 -Wl,--no-whole-archive \ 1777 -Wl,-Map,u-boot.map; \ 1778 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1779else 1780quiet_cmd_u-boot__ ?= LD $@ 1781 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1782 -T u-boot.lds $(u-boot-init) \ 1783 --whole-archive \ 1784 $(u-boot-main) \ 1785 --no-whole-archive \ 1786 $(PLATFORM_LIBS) -Map u-boot.map; \ 1787 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1788endif 1789 1790quiet_cmd_smap = GEN common/system_map.o 1791cmd_smap = \ 1792 smap=`$(call SYSTEM_MAP,u-boot) | \ 1793 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1794 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1795 -c $(srctree)/common/system_map.c -o common/system_map.o 1796 1797u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1798 +$(call if_changed,u-boot__) 1799ifeq ($(CONFIG_KALLSYMS),y) 1800 $(call cmd,smap) 1801 $(call cmd,u-boot__) common/system_map.o 1802endif 1803 1804ifeq ($(CONFIG_RISCV),y) 1805 @tools/prelink-riscv $@ 1806endif 1807 1808quiet_cmd_sym ?= SYM $@ 1809 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1810u-boot.sym: u-boot FORCE 1811 $(call if_changed,sym) 1812 1813# Environment processing 1814# --------------------------------------------------------------------------- 1815 1816# Directory where we expect the .env file, if it exists 1817ENV_DIR := $(srctree)/board/$(BOARDDIR) 1818 1819# Basename of .env file, stripping quotes 1820ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%) 1821 1822# Filename of .env file 1823ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env 1824 1825# Default filename, if CONFIG_ENV_SOURCE_FILE is empty 1826ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env 1827 1828# Select between the CONFIG_ENV_SOURCE_FILE and the default one 1829ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD))) 1830 1831# Run the environment text file through the preprocessor, but only if it is 1832# non-empty, to save time and possible build errors if something is wonky with 1833# the board. 1834# If there is no ENV_FILE, produce an empty output file, to prevent a previous 1835# build's file being used in the case of in-tree builds. 1836quiet_cmd_gen_envp = ENVP $@ 1837 cmd_gen_envp = \ 1838 if [ -s "$(ENV_FILE)" ]; then \ 1839 $(CPP) -P $(CFLAGS) -x assembler-with-cpp -undef \ 1840 -D__ASSEMBLY__ \ 1841 -D__UBOOT_CONFIG__ \ 1842 -I . -I include -I $(srctree)/include \ 1843 -include linux/kconfig.h -include include/config.h \ 1844 -I$(srctree)/arch/$(ARCH)/include \ 1845 $< -o $@; \ 1846 else \ 1847 rm -f $@; \ 1848 touch $@ ; \ 1849 fi 1850include/generated/env.in: include/generated/env.txt 1851 $(call cmd,gen_envp) 1852 1853# Regenerate the environment if it changes 1854# We use 'wildcard' since the file is not required to exist (at present), in 1855# which case we don't want this dependency, but instead should create an empty 1856# file 1857# This rule is useful since it shows the source file for the environment 1858quiet_cmd_envc = ENVC $@ 1859 cmd_envc = \ 1860 if [ -f "$<" ]; then \ 1861 cat $< > $@; \ 1862 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \ 1863 echo "Missing file $(ENV_FILE_CFG)"; \ 1864 else \ 1865 touch $@ ; \ 1866 fi 1867 1868include/generated/env.txt: $(wildcard $(ENV_FILE)) include/generated/autoconf.h 1869 $(call cmd,envc) 1870 1871# Write out the resulting environment, converted to a C string 1872quiet_cmd_gen_envt = ENVT $@ 1873 cmd_gen_envt = \ 1874 awk -f $(srctree)/scripts/env2string.awk $< >$@ 1875$(env_h): include/generated/env.in 1876 $(call cmd,gen_envt) 1877 1878# --------------------------------------------------------------------------- 1879 1880# The actual objects are generated when descending, 1881# make sure no implicit rule kicks in 1882$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1883 1884# Handle descending into subdirectories listed in $(u-boot-dirs) 1885# Preset locale variables to speed up the build process. Limit locale 1886# tweaks to this spot to avoid wrong language settings when running 1887# make menuconfig etc. 1888# Error messages still appears in the original language 1889 1890PHONY += $(u-boot-dirs) 1891$(u-boot-dirs): prepare scripts 1892 $(Q)$(MAKE) $(build)=$@ 1893 1894tools: prepare 1895# The "tools" are needed early 1896$(filter-out tools, $(u-boot-dirs)): tools 1897# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1898# is "yes"), so compile examples after U-Boot is compiled. 1899examples: $(filter-out examples, $(u-boot-dirs)) 1900 1901define filechk_uboot.release 1902 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1903endef 1904 1905# Store (new) UBOOTRELEASE string in include/config/uboot.release 1906include/config/uboot.release: include/config/auto.conf FORCE 1907 $(call filechk,uboot.release) 1908 1909 1910# Things we need to do before we recursively start building the kernel 1911# or the modules are listed in "prepare". 1912# A multi level approach is used. prepareN is processed before prepareN-1. 1913# archprepare is used in arch Makefiles and when processed asm symlink, 1914# version.h and scripts_basic is processed / created. 1915 1916# Listed in dependency order 1917PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1918 1919# prepare3 is used to check if we are building in a separate output directory, 1920# and if so do: 1921# 1) Check that make has not been executed in the kernel src $(srctree) 1922prepare3: include/config/uboot.release 1923ifneq ($(KBUILD_SRC),) 1924 @$(kecho) ' Using $(srctree) as source for U-Boot' 1925 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1926 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1927 echo >&2 " in the '$(srctree)' directory.";\ 1928 /bin/false; \ 1929 fi; 1930endif 1931 1932# prepare2 creates a makefile if using a separate output directory 1933prepare2: prepare3 outputmakefile cfg 1934 1935prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \ 1936 include/config/auto.conf 1937ifeq ($(wildcard $(LDSCRIPT)),) 1938 @echo >&2 " Could not find linker script." 1939 @/bin/false 1940endif 1941 1942ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1943prepare1: $(defaultenv_h) 1944 1945envtools: $(defaultenv_h) 1946endif 1947 1948archprepare: prepare1 scripts_basic 1949 1950prepare0: archprepare FORCE 1951 $(Q)$(MAKE) $(build)=. 1952 1953# All the preparing.. 1954prepare: prepare0 1955 1956# Generate some files 1957# --------------------------------------------------------------------------- 1958 1959# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1960define filechk_version.h 1961 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1962 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1963 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1964 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1965 sed -e "s/^0*//"); \ 1966 echo \#define HOST_ARCH $(HOST_ARCH); \ 1967 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1968 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1969endef 1970 1971# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1972# The BSD date on the other hand behaves different and would produce errors 1973# with the misused '-d' switch. Respect that and search a working date with 1974# well known pre- and suffixes for the GNU variant of date. 1975define filechk_timestamp.h 1976 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1977 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1978 DATE=""; \ 1979 for date in gdate date.gnu date; do \ 1980 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1981 done; \ 1982 if test -n "$${DATE}"; then \ 1983 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1984 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1985 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1986 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1987 else \ 1988 return 42; \ 1989 fi; \ 1990 else \ 1991 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1992 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1993 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1994 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1995 fi) 1996endef 1997 1998define filechk_defaultenv.h 1999 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ 2000 tr '\n' '\0' | \ 2001 sed -e 's/\\\x0\s*//g' | \ 2002 xxd -i ; ) 2003endef 2004 2005define filechk_dt.h 2006 (if test -n "$${DEVICE_TREE}"; then \ 2007 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 2008 else \ 2009 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 2010 fi) 2011endef 2012 2013$(version_h): include/config/uboot.release FORCE 2014 $(call filechk,version.h) 2015 2016$(timestamp_h): $(srctree)/Makefile FORCE 2017 $(call filechk,timestamp.h) 2018 2019$(dt_h): $(srctree)/Makefile FORCE 2020 $(call filechk,dt.h) 2021 2022$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 2023 $(call filechk,defaultenv.h) 2024 2025# --------------------------------------------------------------------------- 2026# Devicetree files 2027 2028ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 2029dtstree := arch/$(SRCARCH)/boot/dts 2030endif 2031 2032ifneq ($(dtstree),) 2033 2034%.dtb: prepare3 scripts_dtc 2035 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 2036 2037PHONY += dtbs dtbs_install 2038dtbs: prepare3 scripts_dtc 2039 $(Q)$(MAKE) $(build)=$(dtstree) 2040 2041dtbs_install: 2042 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 2043 2044endif 2045 2046# Check dtc and pylibfdt, if DTC is provided, else build them 2047PHONY += scripts_dtc 2048scripts_dtc: scripts_basic 2049 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ 2050 $(MAKE) $(build)=scripts/dtc; \ 2051 else \ 2052 if ! $(DTC) -v >/dev/null; then \ 2053 echo '*** Failed to check dtc version: $(DTC)'; \ 2054 false; \ 2055 else \ 2056 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ 2057 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ 2058 false; \ 2059 else \ 2060 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ 2061 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ 2062 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ 2063 false; \ 2064 fi; \ 2065 fi; \ 2066 fi; \ 2067 fi; \ 2068 fi 2069 2070# --------------------------------------------------------------------------- 2071quiet_cmd_cpp_lds = LDS $@ 2072cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 2073 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 2074 2075u-boot.lds: $(LDSCRIPT) prepare FORCE 2076 $(call if_changed_dep,cpp_lds) 2077 2078spl/u-boot-spl.bin: spl/u-boot-spl 2079 @: 2080 $(SPL_SIZE_CHECK) 2081 2082spl/u-boot-spl-dtb.bin: spl/u-boot-spl 2083 @: 2084 2085spl/u-boot-spl-dtb.hex: spl/u-boot-spl 2086 @: 2087 2088spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb) 2089 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 2090 2091spl/sunxi-spl.bin: spl/u-boot-spl 2092 @: 2093 2094spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2095 @: 2096 2097spl/u-boot-spl.sfp: spl/u-boot-spl 2098 @: 2099 2100spl/boot.bin: spl/u-boot-spl 2101 @: 2102 2103tpl/u-boot-tpl.bin: tpl/u-boot-tpl 2104 @: 2105 $(TPL_SIZE_CHECK) 2106 2107tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2108 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 2109 2110vpl/u-boot-vpl.bin: vpl/u-boot-vpl 2111 @: 2112 $(VPL_SIZE_CHECK) 2113 2114vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2115 $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.spl all 2116 2117TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2118 2119FIND := find 2120FINDFLAGS := -L 2121 2122tags ctags: 2123 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2124 -name '*.[chS]' -print` 2125 ln -s ctags tags 2126 2127etags: 2128 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2129 -name '*.[chS]' -print` 2130cscope: 2131 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2132 cscope.files 2133 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2134 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2135 mv cscope.files.no-symlinks cscope.files 2136 cscope -b -q -k 2137 2138SYSTEM_MAP = \ 2139 $(NM) $1 | \ 2140 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2141 LC_ALL=C sort 2142System.map: u-boot 2143 @$(call SYSTEM_MAP,$<) > $@ 2144 2145######################################################################### 2146 2147# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2148# R_AARCH64_RELATIVE (64-bit). 2149checkarmreloc: u-boot 2150 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 2151 grep R_A | sort -u`"; \ 2152 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2153 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2154 echo "$< contains unexpected relocations: $$RELOC"; \ 2155 false; \ 2156 fi 2157 2158tools/version.h: include/version.h 2159 $(Q)mkdir -p $(dir $@) 2160 $(call if_changed,copy) 2161 2162envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h 2163 $(Q)$(MAKE) $(build)=tools/env 2164 2165tools-only: export TOOLS_ONLY=y 2166tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2167 $(Q)$(MAKE) $(build)=tools 2168 2169tools-all: export HOST_TOOLS_ALL=y 2170tools-all: envtools tools ; 2171 2172cross_tools: export CROSS_BUILD_TOOLS=y 2173cross_tools: tools ; 2174 2175.PHONY : CHANGELOG 2176CHANGELOG: 2177 git log --no-merges U-Boot-1_1_5.. | \ 2178 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2179 2180######################################################################### 2181 2182### 2183# Cleaning is done on three levels. 2184# make clean Delete most generated files 2185# Leave enough to build external modules 2186# make mrproper Delete the current configuration, and all generated files 2187# make distclean Remove editor backup files, patch leftover files and the like 2188 2189# Directories & files removed with 'make clean' 2190CLEAN_DIRS += $(MODVERDIR) \ 2191 $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \ 2192 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2193 2194CLEAN_FILES += include/autoconf.mk* include/bmp_logo.h include/bmp_logo_data.h \ 2195 include/config.h include/generated/env.* drivers/video/u_boot_logo.S \ 2196 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \ 2197 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2198 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2199 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \ 2200 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \ 2201 itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \ 2202 mkimage.rom.mkimage mkimage-in-simple-bin* rom.map simple-bin* \ 2203 idbloader-spi.img lib/efi_loader/helloworld_efi.S *.itb \ 2204 Test* capsule.*.efi-capsule capsule*.map 2205 2206# Directories & files removed with 'make mrproper' 2207MRPROPER_DIRS += include/config include/generated spl tpl vpl \ 2208 .tmp_objdiff doc/output include/asm 2209 2210# Remove include/asm symlink created by U-Boot before v2014.01 2211MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2212 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2213 drivers/video/fonts/*.S include/asm 2214 2215# clean - Delete most, but leave enough to build external modules 2216# 2217clean: rm-dirs := $(CLEAN_DIRS) 2218clean: rm-files := $(CLEAN_FILES) 2219 2220clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2221 2222clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2223 2224PHONY += $(clean-dirs) clean archclean 2225$(clean-dirs): 2226 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2227 2228clean: $(clean-dirs) 2229 $(call cmd,rmdirs) 2230 $(call cmd,rmfiles) 2231 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2232 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2233 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2234 -o -name '*.dtb' -o -name '*.dtbo' \ 2235 -o -name '*.dtb.S' -o -name '*.dtbo.S' \ 2236 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2237 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2238 -o -name '*.asn1.[ch]' \ 2239 -o -name '*.symtypes' -o -name 'modules.order' \ 2240 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2241 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \ 2242 -o -name 'dsdt_generated.c' \ 2243 -o -name 'generated_defconfig' \ 2244 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2245 -type f -print | xargs rm -f 2246 2247# mrproper - Delete all generated files, including .config 2248# 2249mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2250mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2251mrproper-dirs := $(addprefix _mrproper_,scripts) 2252 2253PHONY += $(mrproper-dirs) mrproper archmrproper 2254$(mrproper-dirs): 2255 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2256 2257mrproper: clean $(mrproper-dirs) 2258 $(call cmd,rmdirs) 2259 $(call cmd,rmfiles) 2260 @rm -f arch/*/include/asm/arch 2261 2262# distclean 2263# 2264PHONY += distclean 2265 2266distclean: mrproper 2267 @find $(srctree) $(RCS_FIND_IGNORE) \ 2268 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2269 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2270 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2271 -o -name '*.pyc' \) \ 2272 -type f -print | xargs rm -f 2273 @rm -f boards.cfg CHANGELOG 2274 2275# See doc/develop/python_cq.rst 2276PHONY += pylint pylint_err 2277PYLINT_BASE := scripts/pylint.base 2278PYLINT_CUR := pylint.cur 2279PYLINT_DIFF := pylint.diff 2280pylint: 2281 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)" 2282 $(Q)mkdir -p pylint.out 2283 $(Q)rm -f pylint.out/out* 2284 $(Q)find tools test -name "*.py" \ 2285 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \ 2286 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _ 2287 $(Q)rm -f $(PYLINT_CUR) 2288 $(Q)( cd pylint.out; for f in *; do \ 2289 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \ 2290 done ) | sort > $(PYLINT_CUR) 2291 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \ 2292 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \ 2293 comm -3 $$base $$cur > $(PYLINT_DIFF); \ 2294 if [ -s $(PYLINT_DIFF) ]; then \ 2295 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \ 2296 echo; \ 2297 echo "Added files:"; \ 2298 comm -13 $$base $$cur; \ 2299 echo; \ 2300 echo "Removed files:"; \ 2301 comm -23 $$base $$cur; \ 2302 false; \ 2303 else \ 2304 rm $$base $$cur $(PYLINT_DIFF); \ 2305 fi 2306 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \ 2307 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \ 2308 echo "$$base_file: Score was $$base_val, now $$cur_val"; \ 2309 bad=true; fi; \ 2310 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \ 2311 if $$bad; then \ 2312 echo "Some files have regressed, please fix"; \ 2313 false; \ 2314 else \ 2315 echo "No pylint regressions"; \ 2316 fi 2317 2318# Check for errors only 2319pylint_err: 2320 $(Q)pylint -E -j 0 --ignore-imports=yes \ 2321 $(shell find tools test -name "*.py") 2322 2323backup: 2324 F=`basename $(srctree)` ; cd .. ; \ 2325 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2326 2327PHONY += _pip pip pip_release 2328 2329pip_release: PIP_ARGS="--real" 2330pip_test: PIP_ARGS="" 2331pip: PIP_ARGS="-n" 2332 2333pip pip_test pip_release: _pip 2334 2335_pip: 2336 scripts/make_pip.sh u_boot_pylib ${PIP_ARGS} 2337 scripts/make_pip.sh patman ${PIP_ARGS} 2338 scripts/make_pip.sh buildman ${PIP_ARGS} 2339 scripts/make_pip.sh dtoc ${PIP_ARGS} 2340 scripts/make_pip.sh binman ${PIP_ARGS} 2341 2342help: 2343 @echo 'Cleaning targets:' 2344 @echo ' clean - Remove most generated files but keep the config' 2345 @echo ' mrproper - Remove all generated files + config + various backup files' 2346 @echo ' distclean - mrproper + remove editor backup and patch files' 2347 @echo '' 2348 @echo 'Configuration targets:' 2349 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2350 @echo '' 2351 @echo 'Test targets:' 2352 @echo '' 2353 @echo ' check - Run all automated tests that use sandbox' 2354 @echo ' pcheck - Run quick automated tests in parallel' 2355 @echo ' qcheck - Run quick automated tests that use sandbox' 2356 @echo ' tcheck - Run quick automated tests on tools' 2357 @echo ' pylint - Run pylint on all Python files' 2358 @echo '' 2359 @echo 'Other generic targets:' 2360 @echo ' all - Build all necessary images depending on configuration' 2361 @echo ' tests - Build U-Boot for sandbox and run tests' 2362 @echo '* u-boot - Build the bare u-boot' 2363 @echo ' dir/ - Build all files in dir and below' 2364 @echo ' dir/file.[oisS] - Build specified target only' 2365 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2366 @echo ' (requires a recent binutils and recent build (System.map))' 2367 @echo ' tags/ctags - Generate ctags file for editors' 2368 @echo ' etags - Generate etags file for editors' 2369 @echo ' cscope - Generate cscope index' 2370 @echo ' ubootrelease - Output the release version string (use with make -s)' 2371 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2372 @echo " cfg - Don't build, just create the .cfg files" 2373 @echo " envtools - Build only the target-side environment tools" 2374 @echo '' 2375 @echo 'PyPi / pip targets:' 2376 @echo ' pip - Check building of PyPi packages' 2377 @echo ' pip_test - Build PyPi pakages and upload to test server' 2378 @echo ' pip_release - Build PyPi pakages and upload to release server' 2379 @echo '' 2380 @echo 'Static analysers' 2381 @echo ' checkstack - Generate a list of stack hogs' 2382 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2383 @echo '' 2384 @echo 'Documentation targets:' 2385 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2386 @echo '' 2387 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2388 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2389 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2390 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2391 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2392 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2393 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2394 @echo ' 1: warnings which may be relevant and do not occur too often' 2395 @echo ' 2: warnings which occur quite often but may still be relevant' 2396 @echo ' 3: more obscure warnings, can most likely be ignored' 2397 @echo ' Multiple levels can be combined with W=12 or W=123' 2398 @echo '' 2399 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2400 @echo 'For further info see the ./README file' 2401 2402tests check: 2403 $(srctree)/test/run 2404 2405pcheck: 2406 $(srctree)/test/run parallel 2407 2408qcheck: 2409 $(srctree)/test/run quick 2410 2411tcheck: 2412 $(srctree)/test/run tools 2413 2414# Documentation targets 2415# --------------------------------------------------------------------------- 2416DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2417 linkcheckdocs dochelp refcheckdocs texinfodocs infodocs 2418PHONY += $(DOC_TARGETS) 2419$(DOC_TARGETS): scripts_basic FORCE 2420 $(Q)$(MAKE) $(build)=doc $@ 2421 2422PHONY += checkstack ubootrelease ubootversion 2423 2424checkstack: 2425 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2426 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2427 2428ubootrelease: 2429 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2430 2431ubootversion: 2432 @echo $(UBOOTVERSION) 2433 2434# Single targets 2435# --------------------------------------------------------------------------- 2436# Single targets are compatible with: 2437# - build with mixed source and output 2438# - build with separate output dir 'make O=...' 2439# - external modules 2440# 2441# target-dir => where to store outputfile 2442# build-dir => directory in kernel source tree to use 2443 2444ifeq ($(KBUILD_EXTMOD),) 2445 build-dir = $(patsubst %/,%,$(dir $@)) 2446 target-dir = $(dir $@) 2447else 2448 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2449 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2450 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2451endif 2452 2453%.s: %.c prepare scripts FORCE 2454 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2455%.i: %.c prepare scripts FORCE 2456 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2457%.o: %.c prepare scripts FORCE 2458 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2459%.lst: %.c prepare scripts FORCE 2460 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2461%.s: %.S prepare scripts FORCE 2462 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2463%.o: %.S prepare scripts FORCE 2464 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2465%.symtypes: %.c prepare scripts FORCE 2466 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2467 2468# Modules 2469/: prepare scripts FORCE 2470 $(cmd_crmodverdir) 2471 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2472 $(build)=$(build-dir) 2473%/: prepare scripts FORCE 2474 $(cmd_crmodverdir) 2475 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2476 $(build)=$(build-dir) 2477%.ko: prepare scripts FORCE 2478 $(cmd_crmodverdir) 2479 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2480 $(build)=$(build-dir) $(@:.ko=.o) 2481 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2482 2483quiet_cmd_genenv = GENENV $@ 2484cmd_genenv = \ 2485 $(objtree)/tools/printinitialenv | \ 2486 sed -e '/^\s*$$/d' | \ 2487 sort -t '=' -k 1,1 -s -o $@ 2488 2489u-boot-initial-env: scripts_basic $(env_h) FORCE 2490 $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv 2491 $(call if_changed,genenv) 2492 2493# Consistency checks 2494# --------------------------------------------------------------------------- 2495 2496PHONY += coccicheck 2497 2498coccicheck: 2499 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2500 2501# FIXME Should go into a make.lib or something 2502# =========================================================================== 2503 2504quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2505 cmd_rmdirs = rm -rf $(rm-dirs) 2506 2507quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2508 cmd_rmfiles = rm -f $(rm-files) 2509 2510# read all saved command lines 2511 2512cmd_files := $(wildcard .*.cmd) 2513 2514ifneq ($(cmd_files),) 2515 $(cmd_files): ; # Do not try to update included dependency files 2516 include $(cmd_files) 2517endif 2518 2519endif #ifeq ($(config-targets),1) 2520endif #ifeq ($(mixed-targets),1) 2521endif # skip-makefile 2522 2523PHONY += FORCE 2524FORCE: 2525 2526# Declare the contents of the PHONY variable as phony. We keep that 2527# information in a variable so we can use it in if_changed and friends. 2528.PHONY: $(PHONY) 2529