1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2022 4PATCHLEVEL = 01 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 $(srctree) 506endif 507 508# To make sure we do not include .config for any of the *config targets 509# catch them early, and hand them over to scripts/kconfig/Makefile 510# It is allowed to specify more targets when calling make, including 511# mixing *config targets and build targets. 512# For example 'make oldconfig all'. 513# Detect when mixed targets is specified, and make a second invocation 514# of make so .config is not included in this case either (for *config). 515 516version_h := include/generated/version_autogenerated.h 517timestamp_h := include/generated/timestamp_autogenerated.h 518defaultenv_h := include/generated/defaultenv_autogenerated.h 519dt_h := include/generated/dt.h 520 521no-dot-config-targets := clean clobber mrproper distclean \ 522 help %docs check% coccicheck \ 523 ubootversion backup tests check qcheck tcheck 524 525config-targets := 0 526mixed-targets := 0 527dot-config := 1 528 529ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 530 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 531 dot-config := 0 532 endif 533endif 534 535ifeq ($(KBUILD_EXTMOD),) 536 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 537 config-targets := 1 538 ifneq ($(words $(MAKECMDGOALS)),1) 539 mixed-targets := 1 540 endif 541 endif 542endif 543 544ifeq ($(mixed-targets),1) 545# =========================================================================== 546# We're called with mixed targets (*config and build targets). 547# Handle them one by one. 548 549PHONY += $(MAKECMDGOALS) __build_one_by_one 550 551$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 552 @: 553 554__build_one_by_one: 555 $(Q)set -e; \ 556 for i in $(MAKECMDGOALS); do \ 557 $(MAKE) -f $(srctree)/Makefile $$i; \ 558 done 559 560else 561ifeq ($(config-targets),1) 562# =========================================================================== 563# *config targets only - make sure prerequisites are updated, and descend 564# in scripts/kconfig to make the *config target 565 566KBUILD_DEFCONFIG := sandbox_defconfig 567export KBUILD_DEFCONFIG KBUILD_KCONFIG 568 569config: scripts_basic outputmakefile FORCE 570 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 571 572%config: scripts_basic outputmakefile FORCE 573 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 574 575else 576# =========================================================================== 577# Build targets only - this includes vmlinux, arch specific targets, clean 578# targets and others. In general all targets except *config targets. 579 580# Additional helpers built in scripts/ 581# Carefully list dependencies so we do not try to build scripts twice 582# in parallel 583PHONY += scripts 584scripts: scripts_basic scripts_dtc include/config/auto.conf 585 $(Q)$(MAKE) $(build)=$(@) 586 587ifeq ($(dot-config),1) 588# Read in config 589-include include/config/auto.conf 590 591# Read in dependencies to all Kconfig* files, make sure to run 592# oldconfig if changes are detected. 593-include include/config/auto.conf.cmd 594 595# To avoid any implicit rule to kick in, define an empty command 596$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 597 598# If .config is newer than include/config/auto.conf, someone tinkered 599# with it and forgot to run make oldconfig. 600# if auto.conf.cmd is missing then we are probably in a cleaned tree so 601# we execute the config step to be sure to catch updated Kconfig files 602include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 603 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 604 @# If the following part fails, include/config/auto.conf should be 605 @# deleted so "make silentoldconfig" will be re-run on the next build. 606 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 607 { rm -f include/config/auto.conf; false; } 608 @# include/config.h has been updated after "make silentoldconfig". 609 @# We need to touch include/config/auto.conf so it gets newer 610 @# than include/config.h. 611 @# Otherwise, 'make silentoldconfig' would be invoked twice. 612 $(Q)touch include/config/auto.conf 613 614u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 615 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 616 617-include include/autoconf.mk 618-include include/autoconf.mk.dep 619 620# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 621# is up-to-date. When we switch to a different board configuration, old CONFIG 622# macros are still remaining in include/config/auto.conf. Without the following 623# gimmick, wrong config.mk would be included leading nasty warnings/errors. 624ifneq ($(wildcard $(KCONFIG_CONFIG)),) 625ifneq ($(wildcard include/config/auto.conf),) 626autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 627 include/config/auto.conf) 628ifeq ($(autoconf_is_old),) 629include config.mk 630include arch/$(ARCH)/Makefile 631endif 632endif 633endif 634 635# These are set by the arch-specific config.mk. Make sure they are exported 636# so they can be used when building an EFI application. 637export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 638export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 639export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 640export CFLAGS_EFI # Compiler flags to add when building EFI app 641export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 642export EFI_TARGET # binutils target if EFI is natively supported 643 644# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 645# that (or fail if absent). Otherwise, search for a linker script in a 646# standard location. 647 648ifndef LDSCRIPT 649 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 650 ifdef CONFIG_SYS_LDSCRIPT 651 # need to strip off double quotes 652 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 653 endif 654endif 655 656# If there is no specified link script, we look in a number of places for it 657ifndef LDSCRIPT 658 ifeq ($(wildcard $(LDSCRIPT)),) 659 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 660 endif 661 ifeq ($(wildcard $(LDSCRIPT)),) 662 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 663 endif 664 ifeq ($(wildcard $(LDSCRIPT)),) 665 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 666 endif 667endif 668 669else 670# Dummy target needed, because used as prerequisite 671include/config/auto.conf: ; 672endif # $(dot-config) 673 674# 675# Xtensa linker script cannot be preprocessed with -ansi because of 676# preprocessor operations on strings that don't make C identifiers. 677# 678ifeq ($(CONFIG_XTENSA),) 679LDPPFLAGS += -ansi 680endif 681 682ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 683KBUILD_CFLAGS += -Os 684else 685KBUILD_CFLAGS += -O2 686endif 687 688LTO_CFLAGS := 689LTO_FINAL_LDFLAGS := 690export LTO_CFLAGS LTO_FINAL_LDFLAGS 691ifdef CONFIG_LTO 692 ifeq ($(cc-name),clang) 693 LTO_CFLAGS += -flto 694 LTO_FINAL_LDFLAGS += -flto 695 696 AR = $(shell $(CC) -print-prog-name=llvm-ar) 697 NM = $(shell $(CC) -print-prog-name=llvm-nm) 698 else 699 NPROC := $(shell nproc 2>/dev/null || echo 1) 700 LTO_CFLAGS += -flto=$(NPROC) 701 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 702 703 # use plugin aware tools 704 AR = $(CROSS_COMPILE)gcc-ar 705 NM = $(CROSS_COMPILE)gcc-nm 706 endif 707 708 CFLAGS_NON_EFI += $(LTO_CFLAGS) 709 710 KBUILD_CFLAGS += $(LTO_CFLAGS) 711endif 712 713ifeq ($(CONFIG_STACKPROTECTOR),y) 714KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 715CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 716else 717KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 718endif 719KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 720 721# disable pointer signed / unsigned warnings in gcc 4.0 722KBUILD_CFLAGS += -Wno-pointer-sign 723 724# disable stringop warnings in gcc 8+ 725KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 726 727KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 728KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 729KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 730 731# Enabled with W=2, disabled by default as noisy 732KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 733 734# change __FILE__ to the relative path from the srctree 735KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 736 737KBUILD_CFLAGS += -g 738# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 739# option to the assembler. 740KBUILD_AFLAGS += -g 741 742# Report stack usage if supported 743# ARC tools based on GCC 7.1 has an issue with stack usage 744# with naked functions, see commit message for more details 745ifndef CONFIG_ARC 746ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 747 KBUILD_CFLAGS += -fstack-usage 748endif 749endif 750 751KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 752KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 753 754ifdef CONFIG_CC_IS_CLANG 755KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 756KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 757KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 758KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 759# Quiet clang warning: comparison of unsigned expression < 0 is always false 760KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 761# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 762# source of a reference will be _MergedGlobals and not on of the whitelisted names. 763# See modpost pattern 2 764KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 765KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 766endif 767 768# These warnings generated too much noise in a regular build. 769# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 770KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 771 772# Prohibit date/time macros, which would make the build non-deterministic 773KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 774 775include scripts/Makefile.extrawarn 776 777# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 778KBUILD_CPPFLAGS += $(KCPPFLAGS) 779KBUILD_AFLAGS += $(KAFLAGS) 780KBUILD_CFLAGS += $(KCFLAGS) 781 782KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 783 784# Use UBOOTINCLUDE when you must reference the include/ directory. 785# Needed to be compatible with the O= option 786UBOOTINCLUDE := \ 787 -Iinclude \ 788 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 789 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 790 $(if $(CONFIG_HAS_THUMB2), \ 791 $(if $(CONFIG_CPU_V7M), \ 792 -I$(srctree)/arch/arm/thumb1/include), \ 793 -I$(srctree)/arch/arm/thumb1/include)) \ 794 -I$(srctree)/arch/$(ARCH)/include \ 795 -include $(srctree)/include/linux/kconfig.h 796 797NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 798 799# FIX ME 800cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 801 $(NOSTDINC_FLAGS) 802c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 803 804######################################################################### 805# U-Boot objects....order is important (i.e. start must be first) 806 807HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 808 809libs-$(CONFIG_API) += api/ 810libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 811libs-y += boot/ 812libs-y += cmd/ 813libs-y += common/ 814libs-$(CONFIG_OF_EMBED) += dts/ 815libs-y += env/ 816libs-y += lib/ 817libs-y += fs/ 818libs-y += net/ 819libs-y += disk/ 820libs-y += drivers/ 821libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 822libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 823libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 824libs-y += drivers/usb/cdns3/ 825libs-y += drivers/usb/dwc3/ 826libs-y += drivers/usb/common/ 827libs-y += drivers/usb/emul/ 828libs-y += drivers/usb/eth/ 829libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 830libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 831libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 832libs-y += drivers/usb/host/ 833libs-y += drivers/usb/mtu3/ 834libs-y += drivers/usb/musb/ 835libs-y += drivers/usb/musb-new/ 836libs-y += drivers/usb/phy/ 837libs-y += drivers/usb/ulpi/ 838ifdef CONFIG_POST 839libs-y += post/ 840endif 841libs-$(CONFIG_UNIT_TEST) += test/ 842libs-$(CONFIG_UT_ENV) += test/env/ 843libs-$(CONFIG_UT_OPTEE) += test/optee/ 844libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 845 846libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 847 848libs-y := $(sort $(libs-y)) 849 850u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 851 852u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 853 854libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 855 856u-boot-init := $(head-y) 857u-boot-main := $(libs-y) 858 859 860# Add GCC lib 861ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 862PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 863else 864PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 865endif 866PLATFORM_LIBS += $(PLATFORM_LIBGCC) 867 868ifdef CONFIG_CC_COVERAGE 869KBUILD_CFLAGS += --coverage 870PLATFORM_LIBGCC += -lgcov 871endif 872 873export PLATFORM_LIBS 874export PLATFORM_LIBGCC 875 876# Special flags for CPP when processing the linker script. 877# Pass the version down so we can handle backwards compatibility 878# on the fly. 879LDPPFLAGS += \ 880 -include $(srctree)/include/u-boot/u-boot.lds.h \ 881 -DCPUDIR=$(CPUDIR) \ 882 $(shell $(LD) --version | \ 883 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 884 885######################################################################### 886######################################################################### 887 888ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 889BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 890else 891BOARD_SIZE_CHECK = 892endif 893 894ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 895SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 896else 897SPL_SIZE_CHECK = 898endif 899 900ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 901TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 902else 903TPL_SIZE_CHECK = 904endif 905 906# Statically apply RELA-style relocations (currently arm64 only) 907# This is useful for arm64 where static relocation needs to be performed on 908# the raw binary, but certain simulators only accept an ELF file (but don't 909# do the relocation). 910ifneq ($(CONFIG_STATIC_RELA),) 911# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 912quiet_cmd_static_rela = RELOC $@ 913cmd_static_rela = \ 914 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 915 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 916 tools/relocate-rela $(3) $(4) $$start $$end 917else 918quiet_cmd_static_rela = 919cmd_static_rela = 920endif 921 922# Always append INPUTS so that arch config.mk's can add custom ones 923INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 924 925INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 926ifeq ($(CONFIG_SPL_FSL_PBL),y) 927INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 928else 929ifneq ($(CONFIG_NXP_ESBC), y) 930# For Secure Boot The Image needs to be signed and Header must also 931# be included. So The image has to be built explicitly 932INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 933endif 934endif 935INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 936ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 937INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 938else 939ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 940INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 941else 942INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 943endif 944endif 945INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 946INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb 947INPUTS-$(CONFIG_BINMAN_STANDALONE_FDT) += u-boot.dtb 948ifeq ($(CONFIG_SPL_FRAMEWORK),y) 949INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 950endif 951INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb 952ifneq ($(CONFIG_SPL_TARGET),) 953INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 954endif 955INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 956INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 957INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 958 959# Generate this input file for binman 960ifeq ($(CONFIG_SPL),) 961INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 962endif 963 964# Add optional build target if defined in board/cpu/soc headers 965ifneq ($(CONFIG_BUILD_TARGET),) 966INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 967endif 968 969ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 970INPUTS-y += init_sp_bss_offset_check 971endif 972 973ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 974INPUTS-y += u-boot-with-dtb.bin 975endif 976 977ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 978# On ARM64 this target is produced by binman so we don't need this dep 979ifeq ($(CONFIG_ARM64),y) 980ifeq ($(CONFIG_SPL),y) 981# TODO: Get binman to generate this too 982INPUTS-y += u-boot-rockchip.bin 983endif 984else 985ifeq ($(CONFIG_SPL),y) 986# Generate these inputs for binman which will create the output files 987INPUTS-y += idbloader.img u-boot.img 988endif 989endif 990endif 991 992INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 993 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 994 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 995 996LDFLAGS_u-boot += $(LDFLAGS_FINAL) 997 998# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 999LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1000
1001# ld.lld support 1002LDFLAGS_u-boot += -z notext 1003 1004LDFLAGS_u-boot += --build-id=none 1005 1006ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1007LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 1008endif 1009 1010# insure the checker run with the right endianness 1011CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1012 1013# the checker needs the correct machine size 1014CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1015 1016# Normally we fill empty space with 0xff 1017quiet_cmd_objcopy = OBJCOPY $@ 1018cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1019 $(OBJCOPYFLAGS_$(@F)) $< $@ 1020 1021# Provide a version which does not do this, for use by EFI 1022quiet_cmd_zobjcopy = OBJCOPY $@ 1023cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1024 1025quiet_cmd_efipayload = OBJCOPY $@ 1026cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1027 1028MKIMAGEOUTPUT ?= /dev/null 1029 1030quiet_cmd_mkimage = MKIMAGE $@ 1031cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1032 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1033 1034quiet_cmd_mkfitimage = MKIMAGE $@ 1035cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1036 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1037 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1038 1039quiet_cmd_cat = CAT $@ 1040cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1041 1042append = cat $(filter-out $< $(PHONY), $^) >> $@ 1043 1044quiet_cmd_pad_cat = CAT $@ 1045cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1046 1047quiet_cmd_lzma = LZMA $@ 1048cmd_lzma = lzma -c -z -k -9 $< > $@ 1049 1050cfg: u-boot.cfg 1051 1052quiet_cmd_cfgcheck = CFGCHK $2 1053cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 1054 $(srctree)/scripts/config_whitelist.txt $(srctree) 1055 1056# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1057got = $(foreach cfg,$(1),$($(cfg))) 1058 1059# expected value 'y for each one 1060expect = $(foreach cfg,$(1),y) 1061 1062# Show a deprecation message 1063# Args: 1064# 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1065# 2: Name of component (e.g . "Ethernet drivers") 1066# 3: Release deadline (e.g. "v202.07") 1067# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1068# Note: Script avoids bash construct, hence the strange double 'if' 1069# (patches welcome!) 1070define deprecated 1071 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1072 echo >&2 "===================== WARNING ======================"; \ 1073 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1074 echo >&2 "for $(2)). Please update the board to use"; \ 1075 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1076 echo >&2 "update by the deadline may result in board removal."; \ 1077 echo >&2 "See doc/driver-model/migration.rst for more info."; \ 1078 echo >&2 "===================================================="; \ 1079 fi; fi 1080 1081endef 1082 1083PHONY += inputs 1084inputs: $(INPUTS-y) 1085 1086all: .binman_stamp inputs 1087ifeq ($(CONFIG_BINMAN),y) 1088 $(call if_changed,binman) 1089endif 1090 1091# Timestamp file to make sure that binman always runs 1092.binman_stamp: FORCE 1093 @touch $@ 1094 1095ifeq ($(CONFIG_DEPRECATED),y) 1096 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1097endif 1098ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) 1099 @echo >&2 "===================== WARNING ======================" 1100 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1101 @echo >&2 "be used for debugging purposes. Please use" 1102 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1103 @echo >&2 "See doc/README.fdt-control for more info." 1104 @echo >&2 "====================================================" 1105endif 1106ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1107 @echo >&2 "===================== WARNING ======================" 1108 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1109 @echo >&2 "to binman instead, to avoid the proliferation of" 1110 @echo >&2 "arch-specific scripts with no tests." 1111 @echo >&2 "====================================================" 1112endif 1113ifneq ($(CONFIG_DM),y) 1114 @echo >&2 "===================== WARNING ======================" 1115 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be" 1116 @echo >&2 "compulsory starting with the v2020.01 release." 1117 @echo >&2 "Failure to update may result in board removal." 1118 @echo >&2 "See doc/driver-model/migration.rst for more info." 1119 @echo >&2 "====================================================" 1120endif 1121 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1122 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1123 $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET)) 1124 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1125 @# Check that this build does not use CONFIG options that we do not 1126 @# know about unless they are in Kconfig. All the existing CONFIG 1127 @# options are whitelisted, so new ones should not be added. 1128 $(call cmd,cfgcheck,u-boot.cfg) 1129 1130PHONY += dtbs 1131dtbs: dts/dt.dtb 1132 @: 1133dts/dt.dtb: u-boot 1134 $(Q)$(MAKE) $(build)=dts dtbs 1135 1136quiet_cmd_copy = COPY $@ 1137 cmd_copy = cp $< $@ 1138 1139ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1140 1141ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1142FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1143else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1144FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1145else 1146FINAL_DTB_CONTAINER = fit-dtb.blob 1147endif 1148 1149fit-dtb.blob.gz: fit-dtb.blob 1150 @gzip -kf9 $< > $@ 1151 1152fit-dtb.blob.lzo: fit-dtb.blob 1153 @lzop -f9 $< > $@ 1154 1155fit-dtb.blob: dts/dt.dtb FORCE 1156 $(call if_changed,mkimage) 1157ifneq ($(SOURCE_DATE_EPOCH),) 1158 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1159 chmod 0600 fit-dtb.blob 1160endif 1161 1162MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1163 -a 0 -e 0 -E \ 1164 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1165 1166MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1167 1168ifneq ($(EXT_DTB),) 1169u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1170 $(call if_changed,cat) 1171else 1172u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1173 $(call if_changed,cat) 1174endif 1175 1176u-boot.bin: u-boot-fit-dtb.bin FORCE 1177 $(call if_changed,copy) 1178 1179u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1180 $(call if_changed,cat) 1181 1182else ifeq ($(CONFIG_OF_SEPARATE),y) 1183u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1184 $(call if_changed,cat) 1185 1186u-boot.bin: u-boot-dtb.bin FORCE 1187 $(call if_changed,copy) 1188else 1189u-boot.bin: u-boot-nodtb.bin FORCE 1190 $(call if_changed,copy) 1191endif 1192 1193# we call Makefile in arch/arm/mach-imx which 1194# has targets which are dependent on targets defined 1195# here. make could not resolve them and we must ensure 1196# that they are finished before calling imx targets 1197ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1198IMX_DEPS = u-boot-fit-dtb.bin 1199endif 1200 1201%.imx: $(IMX_DEPS) %.bin 1202 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1203 $(BOARD_SIZE_CHECK) 1204 1205%.vyb: %.imx 1206 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1207 1208quiet_cmd_copy = COPY $@ 1209 cmd_copy = cp $< $@ 1210 1211u-boot.dtb: dts/dt.dtb 1212 $(call cmd,copy) 1213 1214OBJCOPYFLAGS_u-boot.hex := -O ihex 1215 1216OBJCOPYFLAGS_u-boot.srec := -O srec 1217 1218u-boot.hex u-boot.srec: u-boot FORCE 1219 $(call if_changed,objcopy) 1220 1221OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1222 1223u-boot-elf.srec: u-boot.elf FORCE 1224 $(call if_changed,objcopy) 1225 1226OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1227 1228spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1229 $(call if_changed,objcopy) 1230 1231%.scif: %.srec 1232 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1233 1234OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1235 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1236 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1237 1238binary_size_check: u-boot-nodtb.bin FORCE 1239 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1240 map_size=$(shell cat u-boot.map | \ 1241 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1242 | sed 's/0X//g' \ 1243 | bc); \ 1244 if [ "" != "$$map_size" ]; then \ 1245 if test $$map_size -ne $$file_size; then \ 1246 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1247 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1248 exit 1; \ 1249 fi; \ 1250 fi 1251 1252ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1253ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1254subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1255else 1256subtract_sys_malloc_f_len = true 1257endif 1258# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1259# so low that the DTB could probably use 90%+ of the available space, for 1260# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1261# safe for now and tweak this later if space becomes tight. 1262# A rejected alternative would be to check that some absolute minimum stack 1263# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1264# deliberately build-specific, to take account of build-to-build stack usage 1265# differences due to different feature sets, there is no common absolute value 1266# to check against. 1267init_sp_bss_offset_check: u-boot.dtb FORCE 1268 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1269 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1270 $(subtract_sys_malloc_f_len) ; \ 1271 quarter_space=$$(($${space} / 4)) ; \ 1272 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1273 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1274 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1275 exit 1 ; \ 1276 fi 1277endif 1278 1279shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1280 1281quiet_cmd_objcopy_uboot = OBJCOPY $@ 1282ifdef cmd_static_rela 1283cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; } 1284else 1285cmd_objcopy_uboot = $(cmd_objcopy) 1286endif 1287 1288u-boot-nodtb.bin: u-boot FORCE 1289 $(call if_changed,objcopy_uboot) 1290 $(BOARD_SIZE_CHECK) 1291 1292u-boot.ldr: u-boot 1293 $(CREATE_LDR_ENV) 1294 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1295 $(BOARD_SIZE_CHECK) 1296 1297# binman 1298# --------------------------------------------------------------------------- 1299# Use 'make BINMAN_DEBUG=1' to enable debugging 1300# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1301default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1302 1303quiet_cmd_binman = BINMAN $@ 1304cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1305 --toolpath $(objtree)/tools \ 1306 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1307 build -u -d u-boot.dtb -O . -m --allow-missing \ 1308 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1309 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ 1310 -a atf-bl31-path=${BL31} \ 1311 -a opensbi-path=${OPENSBI} \ 1312 -a default-dt=$(default_dt) \ 1313 -a scp-path=$(SCP) \ 1314 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1315 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1316 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ 1317 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ 1318 $(if $(BINMAN_FAKE_EXT_BLOBS),--fake-ext-blobs) \ 1319 $(BINMAN_$(@F)) 1320 1321OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1322 1323OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1324 1325u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1326 $(call if_changed,objcopy) 1327 1328# 1329# U-Boot entry point, needed for booting of full-blown U-Boot 1330# from the SPL U-Boot version. 1331# 1332ifndef CONFIG_SYS_UBOOT_START 1333CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE) 1334endif 1335 1336# Boards with more complex image requirements can provide an .its source file 1337# or a generator script 1338# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1339# binman instead. 1340ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1341U_BOOT_ITS := u-boot.its 1342$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1343 $(call if_changed,copy) 1344else 1345ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1346U_BOOT_ITS := u-boot.its 1347ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1348U_BOOT_ITS_DEPS += u-boot 1349endif 1350$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1351 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1352 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1353endif 1354endif 1355 1356ifdef CONFIG_SPL_LOAD_FIT 1357MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1358 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1359 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1360 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1361 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1362 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1363 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1364else 1365MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1366 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1367 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1368MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1369 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1370 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1371u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1372endif 1373 1374MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1375 1376# Some boards have the kwbimage.cfg file written in advance, while some 1377# other boards generate it on the fly during the build in the build tree. 1378# Let's check if the file exists in the build tree first, otherwise we 1379# fall back to use the one in the source tree. 1380KWD_CONFIG_FILE = $(shell \ 1381 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1382 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1383 else \ 1384 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1385 fi) 1386 1387MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1388 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1389 1390MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1391 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1392 $(if $(KEYDIR),-k $(KEYDIR)) 1393 1394MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1395 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1396 1397ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1398UBOOT_BIN := u-boot-with-dtb.bin 1399else 1400UBOOT_BIN := u-boot.bin 1401endif 1402 1403MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1404 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1405 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1406 1407u-boot.bin.lzma: u-boot.bin FORCE 1408 $(call if_changed,lzma) 1409 1410u-boot-lzma.img: u-boot.bin.lzma FORCE 1411 $(call if_changed,mkimage) 1412 1413u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1414 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1415 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \ 1416 ,$(UBOOT_BIN)) FORCE 1417 $(call if_changed,mkimage) 1418 $(BOARD_SIZE_CHECK) 1419 1420ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1421MKIMAGEFLAGS_u-boot.itb = 1422else 1423MKIMAGEFLAGS_u-boot.itb = -E 1424endif 1425MKIMAGEFLAGS_u-boot.itb += -B 0x8 1426 1427ifdef U_BOOT_ITS 1428u-boot.itb: u-boot-nodtb.bin \ 1429 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1430 $(U_BOOT_ITS) FORCE 1431 $(call if_changed,mkfitimage) 1432 $(BOARD_SIZE_CHECK) 1433endif 1434 1435u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1436 $(call if_changed,mkimage) 1437 1438u-boot.sha1: u-boot.bin 1439 tools/ubsha1 u-boot.bin 1440 1441u-boot.dis: u-boot 1442 $(OBJDUMP) -d $< > $@ 1443 1444ifneq ($(CONFIG_SPL_PAYLOAD),) 1445SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1446else 1447SPL_PAYLOAD := u-boot.bin 1448endif 1449 1450SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1451 1452OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1453 --pad-to=$(CONFIG_SPL_PAD_TO) 1454u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1455 $(call if_changed,pad_cat) 1456 1457ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 1458 1459# TPL + SPL 1460ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy) 1461MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd 1462tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE 1463 $(call if_changed,mkimage) 1464idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE 1465 $(call if_changed,cat) 1466else 1467MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd 1468idbloader.img: spl/u-boot-spl.bin FORCE 1469 $(call if_changed,mkimage) 1470endif 1471 1472ifeq ($(CONFIG_ARM64),y) 1473OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \ 1474 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1475u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE 1476 $(call if_changed,pad_cat) 1477endif # CONFIG_ARM64 1478 1479endif # CONFIG_ARCH_ROCKCHIP 1480 1481ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1482MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1483 1484lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1485 $(call if_changed,mkimage) 1486 1487OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1488 1489lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1490 $(call if_changed,objcopy) 1491 1492OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1493 1494lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1495 $(call if_changed,objcopy) 1496 1497lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1498 $(call if_changed,cat) 1499 1500endif 1501 1502OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1503 --pad-to=$(CONFIG_TPL_PAD_TO) 1504tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1505 $(call if_changed,pad_cat) 1506 1507SPL: spl/u-boot-spl.bin FORCE 1508 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1509 1510ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1511ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1512u-boot.cnt: u-boot.bin FORCE 1513 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1514 1515flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1516 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1517else 1518ifeq ($(CONFIG_BINMAN),y) 1519flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1520 $(call if_changed,binman) 1521 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1522else 1523flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1524 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1525endif 1526endif 1527endif 1528 1529u-boot.uim: u-boot.bin FORCE 1530 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1531 1532u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1533 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1534 1535MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1536 1537u-boot.ubl: u-boot-with-spl.bin FORCE 1538 $(call if_changed,mkimage) 1539 1540MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1541 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1542 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1543spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1544 $(call if_changed,mkimage) 1545 1546OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1547u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1548 $(call if_changed,pad_cat) 1549 1550u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1551 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1552u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1553 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1554 1555MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1556 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1557spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1558 $(call if_changed,mkimage) 1559 1560ifneq ($(CONFIG_ARCH_SOCFPGA),) 1561quiet_cmd_gensplx4 = GENSPLX4 $@ 1562cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1563 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1564 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1565 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1566 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1567spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1568 $(call if_changed,gensplx4) 1569 1570quiet_cmd_socboot = SOCBOOT $@ 1571cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1572u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1573 $(call if_changed,socboot) 1574 1575quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1576cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1577 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1578 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1579 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1580 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1581 { rm -f $@ spl/u-boot-spl.pad; false; } 1582u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1583 $(call if_changed,gensplpadx4) 1584 1585quiet_cmd_socnandboot = SOCNANDBOOT $@ 1586cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1587u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1588 $(call if_changed,socnandboot) 1589 1590endif 1591 1592ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1593u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1594 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1595 $(call if_changed,binman) 1596 1597ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1598OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1599u-boot-br.bin: u-boot FORCE 1600 $(call if_changed,objcopy) 1601endif 1602endif 1603 1604quiet_cmd_ldr = LD $@ 1605cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1606 $(filter-out FORCE,$^) -o $@ 1607 1608ifdef CONFIG_X86 1609OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1610u-boot-x86-start16.bin: u-boot FORCE 1611 $(call if_changed,objcopy) 1612 1613OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1614u-boot-x86-reset16.bin: u-boot FORCE 1615 $(call if_changed,objcopy) 1616 1617endif # CONFIG_X86 1618 1619OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1620u-boot-app.efi: u-boot FORCE 1621 $(call if_changed,zobjcopy) 1622 1623u-boot.bin.o: u-boot.bin FORCE 1624 $(call if_changed,efipayload) 1625 1626u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1627 $(call if_changed_dep,cpp_lds) 1628 1629# Rule to link the EFI payload which contains a stub and a U-Boot binary 1630quiet_cmd_u-boot_payload ?= LD $@ 1631 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1632 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1633 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1634 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1635 1636u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1637 $(call if_changed,u-boot_payload) 1638 1639OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1640u-boot-payload.efi: u-boot-payload FORCE 1641 $(call if_changed,zobjcopy) 1642 1643u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1644 $(call if_changed,cat) 1645 1646#Add a target to create boot binary having SPL binary in PBI format 1647#concatenated with u-boot binary. It is need by PowerPC SoC having 1648#internal SRAM <= 512KB. 1649MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1650 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1651 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1652 1653spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1654 $(call if_changed,mkimage) 1655 1656ifeq ($(ARCH),arm) 1657UBOOT_BINLOAD := u-boot.img 1658else 1659ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1660UBOOT_BINLOAD := u-boot-with-dtb.bin 1661else 1662UBOOT_BINLOAD := u-boot.bin 1663endif 1664endif 1665 1666OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1667 --gap-fill=0xff 1668 1669u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1670 $(call if_changed,pad_cat) 1671 1672# PPC4xx needs the SPL at the end of the image, since the reset vector 1673# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1674# and need to introduce a new build target with the full blown U-Boot 1675# at the start padded up to the start of the SPL image. And then concat 1676# the SPL image to the end. 1677 1678OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1679 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1680u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1681 $(call if_changed,pad_cat) 1682 1683quiet_cmd_u-boot-elf ?= LD $@ 1684 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1685 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1686 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1687u-boot.elf: u-boot.bin u-boot-elf.lds 1688 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1689 $(call if_changed,u-boot-elf) 1690 1691u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1692 $(call if_changed_dep,cpp_lds) 1693 1694# MediaTek's ARM-based u-boot needs a header to contains its load address 1695# which is parsed by the BootROM. 1696# If the SPL build is enabled, the header will be added to the spl binary, 1697# and the spl binary and the u-boot.img will be combined into one file. 1698# Otherwise the header will be added to the u-boot.bin directly. 1699 1700ifeq ($(CONFIG_SPL),y) 1701spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1702 1703u-boot-mtk.bin: u-boot-with-spl.bin 1704 $(call if_changed,copy) 1705else 1706MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1707 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1708 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1709 1710u-boot-mtk.bin: u-boot.bin FORCE 1711 $(call if_changed,mkimage) 1712endif 1713 1714quiet_cmd_endian_swap = SWAP $@ 1715 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1716 1717u-boot-swap.bin: u-boot.bin FORCE 1718 $(call if_changed,endian_swap) 1719 1720ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1721 1722# Generate linker list symbols references to force compiler to not optimize 1723# them away when compiling with LTO 1724ifdef CONFIG_LTO 1725u-boot-keep-syms-lto := keep-syms-lto.o 1726u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1727 1728quiet_cmd_keep_syms_lto = KSL $@ 1729 cmd_keep_syms_lto = \ 1730 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1731 1732quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1733 cmd_keep_syms_lto_cc = \ 1734 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1735 1736$(u-boot-keep-syms-lto_c): $(u-boot-main) 1737 $(call if_changed,keep_syms_lto) 1738$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1739 $(call if_changed,keep_syms_lto_cc) 1740else 1741u-boot-keep-syms-lto := 1742endif 1743 1744# Rule to link u-boot 1745# May be overridden by arch/$(ARCH)/config.mk 1746ifdef CONFIG_LTO 1747quiet_cmd_u-boot__ ?= LTO $@ 1748 cmd_u-boot__ ?= \ 1749 $(CC) -nostdlib -nostartfiles \ 1750 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1751 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1752 -T u-boot.lds $(u-boot-init) \ 1753 -Wl,--whole-archive \ 1754 $(u-boot-main) \ 1755 $(u-boot-keep-syms-lto) \ 1756 $(PLATFORM_LIBS) \ 1757 -Wl,--no-whole-archive \ 1758 -Wl,-Map,u-boot.map; \ 1759 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1760else 1761# Note: Linking efi-x86_app64 causes a segfault in the linker at present 1762# when using x86_64-linux-gnu-ld.bfd 1763# For now, disable --whole-archive which makes things link, although not 1764# correctly 1765quiet_cmd_u-boot__ ?= LD $@ 1766 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1767 -T u-boot.lds $(u-boot-init) \ 1768 $(if $(CONFIG_EFI_APP_64BIT),,--whole-archive) \ 1769 $(u-boot-main) \ 1770 $(if $(CONFIG_EFI_APP_64BIT),,--no-whole-archive) \ 1771 $(PLATFORM_LIBS) -Map u-boot.map; \ 1772 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1773endif 1774 1775quiet_cmd_smap = GEN common/system_map.o 1776cmd_smap = \ 1777 smap=`$(call SYSTEM_MAP,u-boot) | \ 1778 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1779 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1780 -c $(srctree)/common/system_map.c -o common/system_map.o 1781 1782u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1783 +$(call if_changed,u-boot__) 1784ifeq ($(CONFIG_KALLSYMS),y) 1785 $(call cmd,smap) 1786 $(call cmd,u-boot__) common/system_map.o 1787endif 1788 1789ifeq ($(CONFIG_RISCV),y) 1790 @tools/prelink-riscv $@ 0 1791endif 1792 1793quiet_cmd_sym ?= SYM $@ 1794 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1795u-boot.sym: u-boot FORCE 1796 $(call if_changed,sym) 1797 1798# The actual objects are generated when descending, 1799# make sure no implicit rule kicks in 1800$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1801 1802# Handle descending into subdirectories listed in $(u-boot-dirs) 1803# Preset locale variables to speed up the build process. Limit locale 1804# tweaks to this spot to avoid wrong language settings when running 1805# make menuconfig etc. 1806# Error messages still appears in the original language 1807 1808PHONY += $(u-boot-dirs) 1809$(u-boot-dirs): prepare scripts 1810 $(Q)$(MAKE) $(build)=$@ 1811 1812tools: prepare 1813# The "tools" are needed early 1814$(filter-out tools, $(u-boot-dirs)): tools 1815# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1816# is "yes"), so compile examples after U-Boot is compiled. 1817examples: $(filter-out examples, $(u-boot-dirs)) 1818 1819define filechk_uboot.release 1820 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1821endef 1822 1823# Store (new) UBOOTRELEASE string in include/config/uboot.release 1824include/config/uboot.release: include/config/auto.conf FORCE 1825 $(call filechk,uboot.release) 1826 1827 1828# Things we need to do before we recursively start building the kernel 1829# or the modules are listed in "prepare". 1830# A multi level approach is used. prepareN is processed before prepareN-1. 1831# archprepare is used in arch Makefiles and when processed asm symlink, 1832# version.h and scripts_basic is processed / created. 1833 1834# Listed in dependency order 1835PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1836 1837# prepare3 is used to check if we are building in a separate output directory, 1838# and if so do: 1839# 1) Check that make has not been executed in the kernel src $(srctree) 1840prepare3: include/config/uboot.release 1841ifneq ($(KBUILD_SRC),) 1842 @$(kecho) ' Using $(srctree) as source for U-Boot' 1843 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1844 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1845 echo >&2 " in the '$(srctree)' directory.";\ 1846 /bin/false; \ 1847 fi; 1848endif 1849 1850# prepare2 creates a makefile if using a separate output directory 1851prepare2: prepare3 outputmakefile cfg 1852 1853prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \ 1854 include/config/auto.conf 1855ifeq ($(wildcard $(LDSCRIPT)),) 1856 @echo >&2 " Could not find linker script." 1857 @/bin/false 1858endif 1859 1860ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1861prepare1: $(defaultenv_h) 1862 1863envtools: $(defaultenv_h) 1864endif 1865 1866archprepare: prepare1 scripts_basic 1867 1868prepare0: archprepare FORCE 1869 $(Q)$(MAKE) $(build)=. 1870 1871# All the preparing.. 1872prepare: prepare0 1873 1874# Generate some files 1875# --------------------------------------------------------------------------- 1876 1877# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1878define filechk_version.h 1879 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1880 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1881 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1882 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1883 sed -e "s/^0*//"); \ 1884 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1885 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1886endef 1887 1888# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1889# The BSD date on the other hand behaves different and would produce errors 1890# with the misused '-d' switch. Respect that and search a working date with 1891# well known pre- and suffixes for the GNU variant of date. 1892define filechk_timestamp.h 1893 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1894 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1895 DATE=""; \ 1896 for date in gdate date.gnu date; do \ 1897 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1898 done; \ 1899 if test -n "$${DATE}"; then \ 1900 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1901 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1902 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1903 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1904 else \ 1905 return 42; \ 1906 fi; \ 1907 else \ 1908 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1909 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1910 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1911 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1912 fi) 1913endef 1914 1915define filechk_defaultenv.h 1916 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ 1917 tr '\n' '\0' | \ 1918 sed -e 's/\\\x0\s*//g' | \ 1919 xxd -i ; ) 1920endef 1921 1922define filechk_dt.h 1923 (if test -n "$${DEVICE_TREE}"; then \ 1924 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 1925 else \ 1926 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 1927 fi) 1928endef 1929 1930$(version_h): include/config/uboot.release FORCE 1931 $(call filechk,version.h) 1932 1933$(timestamp_h): $(srctree)/Makefile FORCE 1934 $(call filechk,timestamp.h) 1935 1936$(dt_h): $(srctree)/Makefile FORCE 1937 $(call filechk,dt.h) 1938 1939$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1940 $(call filechk,defaultenv.h) 1941 1942# --------------------------------------------------------------------------- 1943# Devicetree files 1944 1945ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 1946dtstree := arch/$(SRCARCH)/boot/dts 1947endif 1948 1949ifneq ($(dtstree),) 1950 1951%.dtb: prepare3 scripts_dtc 1952 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 1953 1954PHONY += dtbs dtbs_install 1955dtbs: prepare3 scripts_dtc 1956 $(Q)$(MAKE) $(build)=$(dtstree) 1957 1958dtbs_install: 1959 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 1960 1961ifdef CONFIG_OF_EARLY_FLATTREE 1962all: dtbs 1963endif 1964 1965endif 1966 1967# Check dtc and pylibfdt, if DTC is provided, else build them 1968PHONY += scripts_dtc 1969scripts_dtc: scripts_basic 1970 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ 1971 $(MAKE) $(build)=scripts/dtc; \ 1972 else \ 1973 if ! $(DTC) -v >/dev/null; then \ 1974 echo '*** Failed to check dtc version: $(DTC)'; \ 1975 false; \ 1976 else \ 1977 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ 1978 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ 1979 false; \ 1980 else \ 1981 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ 1982 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ 1983 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ 1984 false; \ 1985 fi; \ 1986 fi; \ 1987 fi; \ 1988 fi; \ 1989 fi 1990 1991# --------------------------------------------------------------------------- 1992quiet_cmd_cpp_lds = LDS $@ 1993cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1994 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1995 1996u-boot.lds: $(LDSCRIPT) prepare FORCE 1997 $(call if_changed_dep,cpp_lds) 1998 1999spl/u-boot-spl.bin: spl/u-boot-spl 2000 @:
2001 $(SPL_SIZE_CHECK) 2002 2003spl/u-boot-spl-dtb.bin: spl/u-boot-spl 2004 @: 2005 2006spl/u-boot-spl-dtb.hex: spl/u-boot-spl 2007 @: 2008 2009spl/u-boot-spl: tools prepare \ 2010 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 2011 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb) 2012 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 2013 2014spl/sunxi-spl.bin: spl/u-boot-spl 2015 @: 2016 2017spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2018 @: 2019 2020spl/u-boot-spl.sfp: spl/u-boot-spl 2021 @: 2022 2023spl/boot.bin: spl/u-boot-spl 2024 @: 2025 2026tpl/u-boot-tpl.bin: tools prepare \ 2027 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 2028 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 2029 $(TPL_SIZE_CHECK) 2030 2031TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2032 2033FIND := find 2034FINDFLAGS := -L 2035 2036tags ctags: 2037 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2038 -name '*.[chS]' -print` 2039 ln -s ctags tags 2040 2041etags: 2042 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2043 -name '*.[chS]' -print` 2044cscope: 2045 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2046 cscope.files 2047 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2048 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2049 mv cscope.files.no-symlinks cscope.files 2050 cscope -b -q -k 2051 2052SYSTEM_MAP = \ 2053 $(NM) $1 | \ 2054 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2055 LC_ALL=C sort 2056System.map: u-boot 2057 @$(call SYSTEM_MAP,$<) > $@ 2058 2059######################################################################### 2060 2061# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2062# R_AARCH64_RELATIVE (64-bit). 2063checkarmreloc: u-boot 2064 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 2065 grep R_A | sort -u`"; \ 2066 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2067 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2068 echo "$< contains unexpected relocations: $$RELOC"; \ 2069 false; \ 2070 fi 2071 2072tools/version.h: include/version.h 2073 $(Q)mkdir -p $(dir $@) 2074 $(call if_changed,copy) 2075 2076envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2077 $(Q)$(MAKE) $(build)=tools/env 2078 2079tools-only: export TOOLS_ONLY=y 2080tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2081 $(Q)$(MAKE) $(build)=tools 2082 2083tools-all: export HOST_TOOLS_ALL=y 2084tools-all: envtools tools ; 2085 2086cross_tools: export CROSS_BUILD_TOOLS=y 2087cross_tools: tools ; 2088 2089.PHONY : CHANGELOG 2090CHANGELOG: 2091 git log --no-merges U-Boot-1_1_5.. | \ 2092 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2093 2094######################################################################### 2095 2096### 2097# Cleaning is done on three levels. 2098# make clean Delete most generated files 2099# Leave enough to build external modules 2100# make mrproper Delete the current configuration, and all generated files 2101# make distclean Remove editor backup files, patch leftover files and the like 2102 2103# Directories & files removed with 'make clean' 2104CLEAN_DIRS += $(MODVERDIR) \ 2105 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 2106 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2107 2108CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \ 2109 u-boot* MLO* SPL System.map fit-dtb.blob* \ 2110 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2111 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2112 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c 2113 2114# Directories & files removed with 'make mrproper' 2115MRPROPER_DIRS += include/config include/generated spl tpl \ 2116 .tmp_objdiff doc/output include/asm 2117 2118# Remove include/asm symlink created by U-Boot before v2014.01 2119MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2120 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2121 drivers/video/fonts/*.S include/asm 2122 2123# clean - Delete most, but leave enough to build external modules 2124# 2125clean: rm-dirs := $(CLEAN_DIRS) 2126clean: rm-files := $(CLEAN_FILES) 2127 2128clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2129 2130clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2131 2132PHONY += $(clean-dirs) clean archclean 2133$(clean-dirs): 2134 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2135 2136clean: $(clean-dirs) 2137 $(call cmd,rmdirs) 2138 $(call cmd,rmfiles) 2139 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2140 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2141 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2142 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2143 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2144 -o -name '*.asn1.[ch]' \ 2145 -o -name '*.symtypes' -o -name 'modules.order' \ 2146 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2147 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 2148 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2149 -type f -print | xargs rm -f 2150 2151# mrproper - Delete all generated files, including .config 2152# 2153mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2154mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2155mrproper-dirs := $(addprefix _mrproper_,scripts) 2156 2157PHONY += $(mrproper-dirs) mrproper archmrproper 2158$(mrproper-dirs): 2159 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2160 2161mrproper: clean $(mrproper-dirs) 2162 $(call cmd,rmdirs) 2163 $(call cmd,rmfiles) 2164 @rm -f arch/*/include/asm/arch 2165 2166# distclean 2167# 2168PHONY += distclean 2169 2170distclean: mrproper 2171 @find $(srctree) $(RCS_FIND_IGNORE) \ 2172 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2173 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2174 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2175 -o -name '*.pyc' \) \ 2176 -type f -print | xargs rm -f 2177 @rm -f boards.cfg CHANGELOG 2178 2179backup: 2180 F=`basename $(srctree)` ; cd .. ; \ 2181 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2182 2183help: 2184 @echo 'Cleaning targets:' 2185 @echo ' clean - Remove most generated files but keep the config' 2186 @echo ' mrproper - Remove all generated files + config + various backup files' 2187 @echo ' distclean - mrproper + remove editor backup and patch files' 2188 @echo '' 2189 @echo 'Configuration targets:' 2190 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2191 @echo '' 2192 @echo 'Test targets:' 2193 @echo '' 2194 @echo ' check - Run all automated tests that use sandbox' 2195 @echo ' qcheck - Run quick automated tests that use sandbox' 2196 @echo ' tcheck - Run quick automated tests on tools' 2197 @echo '' 2198 @echo 'Other generic targets:' 2199 @echo ' all - Build all necessary images depending on configuration' 2200 @echo ' tests - Build U-Boot for sandbox and run tests' 2201 @echo '* u-boot - Build the bare u-boot' 2202 @echo ' dir/ - Build all files in dir and below' 2203 @echo ' dir/file.[oisS] - Build specified target only' 2204 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2205 @echo ' (requires a recent binutils and recent build (System.map))' 2206 @echo ' tags/ctags - Generate ctags file for editors' 2207 @echo ' etags - Generate etags file for editors' 2208 @echo ' cscope - Generate cscope index' 2209 @echo ' ubootrelease - Output the release version string (use with make -s)' 2210 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2211 @echo " cfg - Don't build, just create the .cfg files" 2212 @echo " envtools - Build only the target-side environment tools" 2213 @echo '' 2214 @echo 'Static analysers' 2215 @echo ' checkstack - Generate a list of stack hogs' 2216 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2217 @echo '' 2218 @echo 'Documentation targets:' 2219 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2220 @echo '' 2221 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2222 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2223 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2224 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2225 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2226 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2227 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2228 @echo ' 1: warnings which may be relevant and do not occur too often' 2229 @echo ' 2: warnings which occur quite often but may still be relevant' 2230 @echo ' 3: more obscure warnings, can most likely be ignored' 2231 @echo ' Multiple levels can be combined with W=12 or W=123' 2232 @echo '' 2233 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2234 @echo 'For further info see the ./README file' 2235 2236tests check: 2237 $(srctree)/test/run 2238 2239qcheck: 2240 $(srctree)/test/run quick 2241 2242tcheck: 2243 $(srctree)/test/run tools 2244 2245# Documentation targets 2246# --------------------------------------------------------------------------- 2247DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2248 linkcheckdocs dochelp refcheckdocs 2249PHONY += $(DOC_TARGETS) 2250$(DOC_TARGETS): scripts_basic FORCE 2251 $(Q)$(MAKE) $(build)=doc $@ 2252 2253PHONY += checkstack ubootrelease ubootversion 2254 2255checkstack: 2256 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2257 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2258 2259ubootrelease: 2260 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2261 2262ubootversion: 2263 @echo $(UBOOTVERSION) 2264 2265# Single targets 2266# --------------------------------------------------------------------------- 2267# Single targets are compatible with: 2268# - build with mixed source and output 2269# - build with separate output dir 'make O=...' 2270# - external modules 2271# 2272# target-dir => where to store outputfile 2273# build-dir => directory in kernel source tree to use 2274 2275ifeq ($(KBUILD_EXTMOD),) 2276 build-dir = $(patsubst %/,%,$(dir $@)) 2277 target-dir = $(dir $@) 2278else 2279 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2280 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2281 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2282endif 2283 2284%.s: %.c prepare scripts FORCE 2285 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2286%.i: %.c prepare scripts FORCE 2287 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2288%.o: %.c prepare scripts FORCE 2289 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2290%.lst: %.c prepare scripts FORCE 2291 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2292%.s: %.S prepare scripts FORCE 2293 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2294%.o: %.S prepare scripts FORCE 2295 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2296%.symtypes: %.c prepare scripts FORCE 2297 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2298 2299# Modules 2300/: prepare scripts FORCE 2301 $(cmd_crmodverdir) 2302 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2303 $(build)=$(build-dir) 2304%/: prepare scripts FORCE 2305 $(cmd_crmodverdir) 2306 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2307 $(build)=$(build-dir) 2308%.ko: prepare scripts FORCE 2309 $(cmd_crmodverdir) 2310 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2311 $(build)=$(build-dir) $(@:.ko=.o) 2312 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2313 2314quiet_cmd_genenv = GENENV $@ 2315cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \ 2316 sed --in-place -e 's/\x00/\x0A/g' $@ 2317 2318u-boot-initial-env: u-boot.bin 2319 $(call if_changed,genenv) 2320 2321# Consistency checks 2322# --------------------------------------------------------------------------- 2323 2324PHONY += coccicheck 2325 2326coccicheck: 2327 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2328 2329# FIXME Should go into a make.lib or something 2330# =========================================================================== 2331 2332quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2333 cmd_rmdirs = rm -rf $(rm-dirs) 2334 2335quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2336 cmd_rmfiles = rm -f $(rm-files) 2337 2338# read all saved command lines 2339 2340cmd_files := $(wildcard .*.cmd) 2341 2342ifneq ($(cmd_files),) 2343 $(cmd_files): ; # Do not try to update included dependency files 2344 include $(cmd_files) 2345endif 2346 2347endif #ifeq ($(config-targets),1) 2348endif #ifeq ($(mixed-targets),1) 2349endif # skip-makefile 2350 2351PHONY += FORCE 2352FORCE: 2353 2354# Declare the contents of the PHONY variable as phony. We keep that 2355# information in a variable so we can use it in if_changed and friends. 2356.PHONY: $(PHONY) 2357