1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2023 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 -D__CHECK_ENDIAN__ $(CF) 427 428KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 429 430KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 431 -Wno-format-security \ 432 -fno-builtin -ffreestanding $(CSTD_FLAG) 433KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 434KBUILD_AFLAGS := -D__ASSEMBLY__ 435KBUILD_LDFLAGS := 436 437ifeq ($(cc-name),clang) 438ifneq ($(CROSS_COMPILE),) 439CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 440GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 441CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 442GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 443endif 444ifneq ($(GCC_TOOLCHAIN),) 445CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 446endif 447KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 448KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 449KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 450KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 451endif 452 453# Don't generate position independent code 454KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 455KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 456 457# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 458UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 459UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 460 461export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 462export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 463export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 464export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 465export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 466export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 467 468export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 469export KBUILD_CFLAGS KBUILD_AFLAGS 470 471export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 472 473# When compiling out-of-tree modules, put MODVERDIR in the module 474# tree rather than in the kernel tree. The kernel tree might 475# even be read-only. 476export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 477 478# Files to ignore in find ... statements 479 480export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 481 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 482 -prune -o 483export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 484 --exclude CVS --exclude .pc --exclude .hg --exclude .git 485 486# =========================================================================== 487# Rules shared between *config targets and build targets 488 489# Basic helpers built in scripts/ 490PHONY += scripts_basic 491scripts_basic: 492 $(Q)$(MAKE) $(build)=scripts/basic 493 $(Q)rm -f .tmp_quiet_recordmcount 494 495# To avoid any implicit rule to kick in, define an empty command. 496scripts/basic/%: scripts_basic ; 497 498PHONY += outputmakefile 499# outputmakefile generates a Makefile in the output directory, if using a 500# separate output directory. This allows convenient use of make in the 501# output directory. 502outputmakefile: 503ifneq ($(KBUILD_SRC),) 504 $(Q)ln -fsn $(srctree) source 505 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) 506endif 507 508# To make sure we do not include .config for any of the *config targets 509# catch them early, and hand them over to scripts/kconfig/Makefile 510# It is allowed to specify more targets when calling make, including 511# mixing *config targets and build targets. 512# For example 'make oldconfig all'. 513# Detect when mixed targets is specified, and make a second invocation 514# of make so .config is not included in this case either (for *config). 515 516version_h := include/generated/version_autogenerated.h 517timestamp_h := include/generated/timestamp_autogenerated.h 518defaultenv_h := include/generated/defaultenv_autogenerated.h 519dt_h := include/generated/dt.h 520env_h := include/generated/environment.h 521 522no-dot-config-targets := clean clobber mrproper distclean \ 523 help %docs check% coccicheck \ 524 ubootversion backup tests check pcheck qcheck tcheck \ 525 pylint pylint_err 526 527config-targets := 0 528mixed-targets := 0 529dot-config := 1 530 531ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 532 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 533 dot-config := 0 534 endif 535endif 536 537ifeq ($(KBUILD_EXTMOD),) 538 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 539 config-targets := 1 540 ifneq ($(words $(MAKECMDGOALS)),1) 541 mixed-targets := 1 542 endif 543 endif 544endif 545 546ifeq ($(mixed-targets),1) 547# =========================================================================== 548# We're called with mixed targets (*config and build targets). 549# Handle them one by one. 550 551PHONY += $(MAKECMDGOALS) __build_one_by_one 552 553$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 554 @: 555 556__build_one_by_one: 557 $(Q)set -e; \ 558 for i in $(MAKECMDGOALS); do \ 559 $(MAKE) -f $(srctree)/Makefile $$i; \ 560 done 561 562else 563ifeq ($(config-targets),1) 564# =========================================================================== 565# *config targets only - make sure prerequisites are updated, and descend 566# in scripts/kconfig to make the *config target 567 568KBUILD_DEFCONFIG := sandbox_defconfig 569export KBUILD_DEFCONFIG KBUILD_KCONFIG 570 571config: scripts_basic outputmakefile FORCE 572 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 573 574%config: scripts_basic outputmakefile FORCE 575 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 576 577else 578# =========================================================================== 579# Build targets only - this includes vmlinux, arch specific targets, clean 580# targets and others. In general all targets except *config targets. 581 582# Additional helpers built in scripts/ 583# Carefully list dependencies so we do not try to build scripts twice 584# in parallel 585PHONY += scripts 586scripts: scripts_basic scripts_dtc include/config/auto.conf 587 $(Q)$(MAKE) $(build)=$(@) 588 589ifeq ($(dot-config),1) 590# Read in config 591-include include/config/auto.conf 592 593# Read in dependencies to all Kconfig* files, make sure to run 594# oldconfig if changes are detected. 595-include include/config/auto.conf.cmd 596 597# To avoid any implicit rule to kick in, define an empty command 598$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 599 600# If .config is newer than include/config/auto.conf, someone tinkered 601# with it and forgot to run make oldconfig. 602# if auto.conf.cmd is missing then we are probably in a cleaned tree so 603# we execute the config step to be sure to catch updated Kconfig files 604include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 605 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 606 @# If the following part fails, include/config/auto.conf should be 607 @# deleted so "make silentoldconfig" will be re-run on the next build. 608 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 609 { rm -f include/config/auto.conf; false; } 610 @# include/config.h has been updated after "make silentoldconfig". 611 @# We need to touch include/config/auto.conf so it gets newer 612 @# than include/config.h. 613 @# Otherwise, 'make silentoldconfig' would be invoked twice. 614 $(Q)touch include/config/auto.conf 615 616u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 617 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 618 619-include include/autoconf.mk 620-include include/autoconf.mk.dep 621 622# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 623# is up-to-date. When we switch to a different board configuration, old CONFIG 624# macros are still remaining in include/config/auto.conf. Without the following 625# gimmick, wrong config.mk would be included leading nasty warnings/errors. 626ifneq ($(wildcard $(KCONFIG_CONFIG)),) 627ifneq ($(wildcard include/config/auto.conf),) 628autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 629 include/config/auto.conf) 630ifeq ($(autoconf_is_old),) 631include config.mk 632include arch/$(ARCH)/Makefile 633endif 634endif 635endif 636 637# These are set by the arch-specific config.mk. Make sure they are exported 638# so they can be used when building an EFI application. 639export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 640export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 641export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 642export CFLAGS_EFI # Compiler flags to add when building EFI app 643export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 644export EFI_TARGET # binutils target if EFI is natively supported 645 646export LTO_ENABLE 647 648# This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO 649ifeq ($(NO_LTO),) 650LTO_ENABLE=$(if $(CONFIG_LTO),y) 651endif 652 653# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 654# that (or fail if absent). Otherwise, search for a linker script in a 655# standard location. 656 657ifndef LDSCRIPT 658 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 659 ifdef CONFIG_SYS_LDSCRIPT 660 # need to strip off double quotes 661 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 662 endif 663endif 664 665# If there is no specified link script, we look in a number of places for it 666ifndef LDSCRIPT 667 ifeq ($(wildcard $(LDSCRIPT)),) 668 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 669 endif 670 ifeq ($(wildcard $(LDSCRIPT)),) 671 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 672 endif 673 ifeq ($(wildcard $(LDSCRIPT)),) 674 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 675 endif 676endif 677 678else 679# Dummy target needed, because used as prerequisite 680include/config/auto.conf: ; 681endif # $(dot-config) 682 683ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 684KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \ 685 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) 686# Avoid false positives -Wmaybe-uninitialized 687# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 688KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized 689KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) 690endif 691 692# 693# Xtensa linker script cannot be preprocessed with -ansi because of 694# preprocessor operations on strings that don't make C identifiers. 695# 696ifeq ($(CONFIG_XTENSA),) 697LDPPFLAGS += -ansi 698endif 699 700ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 701KBUILD_CFLAGS += -Os 702endif 703 704ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED 705KBUILD_CFLAGS += -O2 706endif 707 708ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 709KBUILD_CFLAGS += -Og -Wno-maybe-uninitialized 710# Avoid false positives -Wmaybe-uninitialized 711# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 712KBUILD_CFLAGS += -Wno-maybe-uninitialized 713endif 714 715LTO_CFLAGS := 716LTO_FINAL_LDFLAGS := 717export LTO_CFLAGS LTO_FINAL_LDFLAGS 718ifeq ($(LTO_ENABLE),y) 719 ifeq ($(cc-name),clang) 720 LTO_CFLAGS += -DLTO_ENABLE -flto 721 LTO_FINAL_LDFLAGS += -flto 722 723 AR = $(shell $(CC) -print-prog-name=llvm-ar) 724 NM = $(shell $(CC) -print-prog-name=llvm-nm) 725 else 726 NPROC := $(shell nproc 2>/dev/null || echo 1) 727 LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC) 728 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 729 730 # use plugin aware tools 731 AR = $(CROSS_COMPILE)gcc-ar 732 NM = $(CROSS_COMPILE)gcc-nm 733 endif 734 735 CFLAGS_NON_EFI += $(LTO_CFLAGS) 736 737 KBUILD_CFLAGS += $(LTO_CFLAGS) 738endif 739 740ifeq ($(CONFIG_STACKPROTECTOR),y) 741KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 742CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 743else 744KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 745endif 746KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 747 748# disable pointer signed / unsigned warnings in gcc 4.0 749KBUILD_CFLAGS += -Wno-pointer-sign 750 751# disable stringop warnings in gcc 8+ 752KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 753 754KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 755KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 756KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 757 758# Enabled with W=2, disabled by default as noisy 759KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 760 761# change __FILE__ to the relative path from the srctree 762KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 763 764KBUILD_CFLAGS += -gdwarf-4 765# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 766# option to the assembler. 767KBUILD_AFLAGS += -gdwarf-4 768 769# Report stack usage if supported 770# ARC tools based on GCC 7.1 has an issue with stack usage 771# with naked functions, see commit message for more details 772ifndef CONFIG_ARC 773ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 774 KBUILD_CFLAGS += -fstack-usage 775endif 776endif 777 778KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 779KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 780 781ifdef CONFIG_CC_IS_CLANG 782KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 783KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 784KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 785KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 786# Quiet clang warning: comparison of unsigned expression < 0 is always false 787KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 788# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 789# source of a reference will be _MergedGlobals and not on of the whitelisted names. 790# See modpost pattern 2 791KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 792KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 793endif 794 795# These warnings generated too much noise in a regular build. 796# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 797KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 798 799# Prohibit date/time macros, which would make the build non-deterministic 800KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 801 802include scripts/Makefile.extrawarn 803 804# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 805KBUILD_CPPFLAGS += $(KCPPFLAGS) 806KBUILD_AFLAGS += $(KAFLAGS) 807KBUILD_CFLAGS += $(KCFLAGS) 808 809KBUILD_LDFLAGS += -z noexecstack 810KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) 811 812KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 813 814# Use UBOOTINCLUDE when you must reference the include/ directory. 815# Needed to be compatible with the O= option 816UBOOTINCLUDE := \ 817 -Iinclude \ 818 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 819 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 820 $(if $(CONFIG_HAS_THUMB2), \ 821 $(if $(CONFIG_CPU_V7M), \ 822 -I$(srctree)/arch/arm/thumb1/include), \ 823 -I$(srctree)/arch/arm/thumb1/include)) \ 824 -I$(srctree)/arch/$(ARCH)/include \ 825 -include $(srctree)/include/linux/kconfig.h 826 827NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 828 829# FIX ME 830cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 831 $(NOSTDINC_FLAGS) 832c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 833 834######################################################################### 835# U-Boot objects....order is important (i.e. start must be first) 836 837HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 838 839libs-$(CONFIG_API) += api/ 840libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 841libs-y += boot/ 842libs-y += cmd/ 843libs-y += common/ 844libs-$(CONFIG_OF_EMBED) += dts/ 845libs-y += env/ 846libs-y += lib/ 847libs-y += fs/ 848libs-y += net/ 849libs-y += disk/ 850libs-y += drivers/ 851libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 852libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 853libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 854libs-y += drivers/usb/cdns3/ 855libs-y += drivers/usb/dwc3/ 856libs-y += drivers/usb/common/ 857libs-y += drivers/usb/emul/ 858libs-y += drivers/usb/eth/ 859libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 860libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 861libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 862libs-y += drivers/usb/host/ 863libs-y += drivers/usb/mtu3/ 864libs-y += drivers/usb/musb/ 865libs-y += drivers/usb/musb-new/ 866libs-y += drivers/usb/isp1760/ 867libs-y += drivers/usb/phy/ 868libs-y += drivers/usb/ulpi/ 869ifdef CONFIG_POST 870libs-y += post/ 871endif 872libs-$(CONFIG_$(SPL_TPL_)UNIT_TEST) += test/ 873libs-$(CONFIG_UT_ENV) += test/env/ 874libs-$(CONFIG_UT_OPTEE) += test/optee/ 875libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 876 877libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 878 879libs-y := $(sort $(libs-y)) 880 881u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 882 883u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 884 885libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 886 887u-boot-init := $(head-y) 888u-boot-main := $(libs-y) 889 890 891# Add GCC lib 892ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 893PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 894else 895PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 896endif 897PLATFORM_LIBS += $(PLATFORM_LIBGCC) 898 899ifdef CONFIG_CC_COVERAGE 900KBUILD_CFLAGS += --coverage 901PLATFORM_LIBGCC += -lgcov 902endif 903 904export PLATFORM_LIBS 905export PLATFORM_LIBGCC 906 907# Special flags for CPP when processing the linker script. 908# Pass the version down so we can handle backwards compatibility 909# on the fly. 910LDPPFLAGS += \ 911 -include $(srctree)/include/u-boot/u-boot.lds.h \ 912 -DCPUDIR=$(CPUDIR) \ 913 $(shell $(LD) --version | \ 914 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 915 916######################################################################### 917######################################################################### 918 919ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 920BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 921else 922BOARD_SIZE_CHECK = 923endif 924 925ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 926SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 927else 928SPL_SIZE_CHECK = 929endif 930 931ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 932TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 933else 934TPL_SIZE_CHECK = 935endif 936 937ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0) 938VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT)) 939else 940VPL_SIZE_CHECK = 941endif 942 943# Statically apply RELA-style relocations (currently arm64 only) 944# This is useful for arm64 where static relocation needs to be performed on 945# the raw binary, but certain simulators only accept an ELF file (but don't 946# do the relocation). 947ifneq ($(CONFIG_STATIC_RELA),) 948# $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base 949quiet_cmd_static_rela = RELOC $@ 950cmd_static_rela = \ 951 tools/relocate-rela $(3) $(2) 952else 953quiet_cmd_static_rela = 954cmd_static_rela = 955endif 956 957# Always append INPUTS so that arch config.mk's can add custom ones 958INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 959 960INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 961ifeq ($(CONFIG_SPL_FSL_PBL),y) 962INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 963else 964ifneq ($(CONFIG_NXP_ESBC), y) 965# For Secure Boot The Image needs to be signed and Header must also 966# be included. So The image has to be built explicitly 967INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 968endif 969endif 970INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 971ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 972INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 973else 974ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 975INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 976else 977INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 978endif 979endif 980INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 981INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin 982 983# Allow omitting the .dtb output if it is not normally used 984INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb) 985ifeq ($(CONFIG_SPL_FRAMEWORK),y) 986INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 987endif 988INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb 989ifneq ($(CONFIG_SPL_TARGET),) 990INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 991endif 992INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 993INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 994INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 995 996# Generate this input file for binman 997ifeq ($(CONFIG_SPL),) 998INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 999endif 1000
1001# Add optional build target if defined in board/cpu/soc headers 1002ifneq ($(CONFIG_BUILD_TARGET),) 1003INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 1004endif 1005 1006ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1007INPUTS-y += init_sp_bss_offset_check 1008endif 1009 1010ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_) 1011INPUTS-y += u-boot.img 1012endif 1013 1014INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 1015 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1016 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 1017 1018LDFLAGS_u-boot += $(LDFLAGS_FINAL) 1019 1020# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 1021LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1022 1023# ld.lld support 1024LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs) 1025 1026LDFLAGS_u-boot += --build-id=none 1027 1028ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1029LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE) 1030endif 1031 1032# insure the checker run with the right endianness 1033CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1034 1035# the checker needs the correct machine size 1036CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1037 1038# Normally we fill empty space with 0xff 1039quiet_cmd_objcopy = OBJCOPY $@ 1040cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1041 $(OBJCOPYFLAGS_$(@F)) $< $@ 1042 1043# Provide a version which does not do this, for use by EFI 1044quiet_cmd_zobjcopy = OBJCOPY $@ 1045cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1046 1047quiet_cmd_efipayload = OBJCOPY $@ 1048cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1049 1050MKIMAGEOUTPUT ?= /dev/null 1051 1052quiet_cmd_mkimage = MKIMAGE $@ 1053cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1054 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1055 1056quiet_cmd_mkfitimage = MKIMAGE $@ 1057cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1058 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1059 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1060 1061quiet_cmd_cat = CAT $@ 1062cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1063 1064append = cat $(filter-out $< $(PHONY), $^) >> $@ 1065 1066quiet_cmd_pad_cat = CAT $@ 1067cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1068 1069quiet_cmd_lzma = LZMA $@ 1070cmd_lzma = lzma -c -z -k -9 $< > $@ 1071 1072cfg: u-boot.cfg 1073 1074quiet_cmd_ofcheck = OFCHK $2 1075cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \ 1076 $(srctree)/scripts/of_allowlist.txt 1077 1078# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1079got = $(foreach cfg,$(1),$($(cfg))) 1080 1081# expected value 'y for each one 1082expect = $(foreach cfg,$(1),y) 1083 1084# Show a deprecation message 1085# Args: 1086# 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1087# 2: Name of component (e.g . "Ethernet drivers") 1088# 3: Release deadline (e.g. "v202.07") 1089# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1090# Note: Script avoids bash construct, hence the strange double 'if' 1091# (patches welcome!) 1092define deprecated 1093 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1094 echo >&2 "===================== WARNING ======================"; \ 1095 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1096 echo >&2 "for $(2)). Please update the board to use"; \ 1097 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1098 echo >&2 "update by the deadline may result in board removal."; \ 1099 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \ 1100 echo >&2 "===================================================="; \ 1101 fi; fi 1102 1103endef 1104 1105# Timestamp file to make sure that binman always runs 1106.binman_stamp: $(INPUTS-y) FORCE 1107ifeq ($(CONFIG_BINMAN),y) 1108 $(call if_changed,binman) 1109endif 1110 @touch $@ 1111 1112all: .binman_stamp 1113 1114ifeq ($(CONFIG_DEPRECATED),y) 1115 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1116endif 1117ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) 1118 @echo >&2 "===================== WARNING ======================" 1119 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1120 @echo >&2 "be used for debugging purposes. Please use" 1121 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1122 @echo >&2 "See doc/develop/devicetree/control.rst for more info." 1123 @echo >&2 "====================================================" 1124endif 1125ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1126 @echo >&2 "===================== WARNING ======================" 1127 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1128 @echo >&2 "to binman instead, to avoid the proliferation of" 1129 @echo >&2 "arch-specific scripts with no tests." 1130 @echo >&2 "====================================================" 1131endif 1132 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1133 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1134 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1135 @# CFG_SYS_TIMER_RATE has brackets in it for some boards which 1136 @# confuses this rule. Use if() to send just a single character which 1137 @# is enable to tell 'deprecated' that one of these symbols exists 1138 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x)) 1139 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL)) 1140 $(call deprecated,CONFIG_DM_SCSI,SCSI drivers,v2023.04,$(CONFIG_SCSI)) 1141 @# Check that this build does not override OF_HAS_PRIOR_STAGE by 1142 @# disabling OF_BOARD. 1143 $(call cmd,ofcheck,$(KCONFIG_CONFIG)) 1144 1145PHONY += dtbs 1146dtbs: dts/dt.dtb 1147 @: 1148dts/dt.dtb: u-boot 1149 $(Q)$(MAKE) $(build)=dts dtbs 1150 1151quiet_cmd_copy = COPY $@ 1152 cmd_copy = cp $< $@ 1153 1154ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1155 1156ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1157FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1158else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1159FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1160else 1161FINAL_DTB_CONTAINER = fit-dtb.blob 1162endif 1163 1164fit-dtb.blob.gz: fit-dtb.blob 1165 @gzip -kf9 $< > $@ 1166 1167fit-dtb.blob.lzo: fit-dtb.blob 1168 @lzop -f9 $< > $@ 1169 1170fit-dtb.blob: dts/dt.dtb FORCE 1171 $(call if_changed,mkimage) 1172ifneq ($(SOURCE_DATE_EPOCH),) 1173 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1174 chmod 0600 fit-dtb.blob 1175endif 1176 1177MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1178 -a 0 -e 0 -E \ 1179 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1180 1181MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1182 1183ifneq ($(EXT_DTB),) 1184u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1185 $(call if_changed,cat) 1186else 1187u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1188 $(call if_changed,cat) 1189endif 1190 1191u-boot.bin: u-boot-fit-dtb.bin FORCE 1192 $(call if_changed,copy) 1193 1194ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1195u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1196 $(call if_changed,cat) 1197endif 1198 1199else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.) 1200 1201ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1202u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1203 $(call if_changed,cat) 1204endif 1205 1206u-boot.bin: u-boot-dtb.bin FORCE 1207 $(call if_changed,copy) 1208 1209else 1210u-boot.bin: u-boot-nodtb.bin FORCE 1211 $(call if_changed,copy) 1212endif 1213 1214# we call Makefile in arch/arm/mach-imx which 1215# has targets which are dependent on targets defined 1216# here. make could not resolve them and we must ensure 1217# that they are finished before calling imx targets 1218ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1219IMX_DEPS = u-boot-fit-dtb.bin 1220endif 1221 1222%.imx: $(IMX_DEPS) %.bin 1223 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1224 $(BOARD_SIZE_CHECK) 1225 1226%.vyb: %.imx 1227 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1228 1229quiet_cmd_copy = COPY $@ 1230 cmd_copy = cp $< $@ 1231 1232u-boot.dtb: dts/dt.dtb 1233 $(call cmd,copy) 1234 1235OBJCOPYFLAGS_u-boot.hex := -O ihex 1236 1237OBJCOPYFLAGS_u-boot.srec := -O srec 1238 1239u-boot.hex u-boot.srec: u-boot FORCE 1240 $(call if_changed,objcopy) 1241 1242OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1243 1244u-boot-elf.srec: u-boot.elf FORCE 1245 $(call if_changed,objcopy) 1246 1247OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1248 1249spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1250 $(call if_changed,objcopy) 1251 1252%.scif: %.srec 1253 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1254 1255OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1256 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1257 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec)) 1258 1259binary_size_check: u-boot-nodtb.bin FORCE 1260 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1261 map_size=$(shell cat u-boot.map | \ 1262 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1263 | sed 's/0X//g' \ 1264 | bc); \ 1265 if [ "" != "$$map_size" ]; then \ 1266 if test $$map_size -ne $$file_size; then \ 1267 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1268 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1269 exit 1; \ 1270 fi; \ 1271 fi 1272 1273ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1274ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1275subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1276else 1277subtract_sys_malloc_f_len = true 1278endif 1279# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1280# so low that the DTB could probably use 90%+ of the available space, for 1281# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1282# safe for now and tweak this later if space becomes tight. 1283# A rejected alternative would be to check that some absolute minimum stack 1284# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1285# deliberately build-specific, to take account of build-to-build stack usage 1286# differences due to different feature sets, there is no common absolute value 1287# to check against. 1288init_sp_bss_offset_check: u-boot.dtb FORCE 1289 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1290 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1291 $(subtract_sys_malloc_f_len) ; \ 1292 quarter_space=$$(($${space} / 4)) ; \ 1293 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1294 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1295 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1296 exit 1 ; \ 1297 fi 1298endif 1299 1300shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1301 1302quiet_cmd_objcopy_uboot = OBJCOPY $@ 1303ifdef cmd_static_rela 1304cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; } 1305else 1306cmd_objcopy_uboot = $(cmd_objcopy) 1307endif 1308 1309u-boot-nodtb.bin: u-boot FORCE 1310 $(call if_changed,objcopy_uboot) 1311 $(BOARD_SIZE_CHECK) 1312 1313u-boot.ldr: u-boot 1314 $(CREATE_LDR_ENV) 1315 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1316 $(BOARD_SIZE_CHECK) 1317 1318# binman 1319# --------------------------------------------------------------------------- 1320# Use 'make BINMAN_DEBUG=1' to enable debugging 1321# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1322default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1323 1324quiet_cmd_binman = BINMAN $@ 1325cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1326 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \ 1327 --toolpath $(objtree)/tools \ 1328 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1329 build -u -d u-boot.dtb -O . -m \ 1330 $(if $(BINMAN_ALLOW_MISSING),--allow-missing --ignore-missing) \ 1331 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1332 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ 1333 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \ 1334 -a atf-bl31-path=${BL31} \ 1335 -a tee-os-path=${TEE} \ 1336 -a opensbi-path=${OPENSBI} \ 1337 -a default-dt=$(default_dt) \ 1338 -a scp-path=$(SCP) \ 1339 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \ 1340 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1341 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1342 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ 1343 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ 1344 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \ 1345 $(BINMAN_$(@F)) 1346 1347OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1348 1349OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1350 1351u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1352 $(call if_changed,objcopy) 1353 1354# 1355# U-Boot entry point, needed for booting of full-blown U-Boot 1356# from the SPL U-Boot version. 1357# 1358ifndef CFG_SYS_UBOOT_START 1359CFG_SYS_UBOOT_START := $(CONFIG_TEXT_BASE) 1360endif 1361 1362# Boards with more complex image requirements can provide an .its source file 1363# or a generator script 1364# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1365# binman instead. 1366ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1367U_BOOT_ITS := u-boot.its 1368$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1369 $(call if_changed,copy) 1370else 1371ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1372U_BOOT_ITS := u-boot.its 1373$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1374 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1375 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1376endif 1377endif 1378 1379ifdef CONFIG_SPL_LOAD_FIT 1380MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1381 -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ 1382 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1383 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1384 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1385 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1386 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1387else 1388MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1389 -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ 1390 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1391MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1392 -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ 1393 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1394u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1395endif 1396 1397MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1398 1399# Some boards have the kwbimage.cfg file written in advance, while some 1400# other boards generate it on the fly during the build in the build tree. 1401# Let's check if the file exists in the build tree first, otherwise we 1402# fall back to use the one in the source tree. 1403KWD_CONFIG_FILE = $(shell \ 1404 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1405 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1406 else \ 1407 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1408 fi) 1409 1410MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1411 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) 1412 1413MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1414 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1415 $(if $(KEYDIR),-k $(KEYDIR)) 1416 1417MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1418 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage 1419 1420UBOOT_BIN := u-boot.bin 1421 1422MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1423 -a $(CONFIG_TEXT_BASE) -e $(CFG_SYS_UBOOT_START) \ 1424 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1425 1426u-boot.bin.lzma: u-boot.bin FORCE 1427 $(call if_changed,lzma) 1428 1429u-boot-lzma.img: u-boot.bin.lzma FORCE 1430 $(call if_changed,mkimage) 1431 1432u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1433 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1434 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1435 ,$(UBOOT_BIN)) FORCE 1436 $(call if_changed,mkimage) 1437 $(BOARD_SIZE_CHECK) 1438 1439ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1440MKIMAGEFLAGS_u-boot.itb = 1441else 1442MKIMAGEFLAGS_u-boot.itb = -E 1443endif 1444MKIMAGEFLAGS_u-boot.itb += -B 0x8 1445 1446ifdef U_BOOT_ITS 1447u-boot.itb: u-boot-nodtb.bin \ 1448 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1449 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \ 1450 $(U_BOOT_ITS) FORCE 1451 $(call if_changed,mkfitimage) 1452 $(BOARD_SIZE_CHECK) 1453endif 1454 1455u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1456 $(call if_changed,mkimage) 1457 $(BOARD_SIZE_CHECK) 1458 1459u-boot.dis: u-boot 1460 $(OBJDUMP) -d $< > $@ 1461 1462ifneq ($(CONFIG_SPL_PAYLOAD),) 1463SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1464else 1465SPL_PAYLOAD := u-boot.bin 1466endif 1467 1468SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1469 1470OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1471 --pad-to=$(CONFIG_SPL_PAD_TO) 1472u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1473 $(call if_changed,pad_cat) 1474 1475ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1476MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1477 1478lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1479 $(call if_changed,mkimage) 1480 1481OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1482 1483lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1484 $(call if_changed,objcopy) 1485 1486OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1487 1488lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1489 $(call if_changed,objcopy) 1490 1491lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1492 $(call if_changed,cat) 1493 1494endif 1495 1496OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1497 --pad-to=$(CONFIG_TPL_PAD_TO) 1498tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1499 $(call if_changed,pad_cat) 1500 1501SPL: spl/u-boot-spl.bin FORCE 1502 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1503 1504#ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1505ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1506u-boot.cnt: u-boot.bin FORCE 1507 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1508 1509flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1510 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1511else 1512ifeq ($(CONFIG_BINMAN),y) 1513flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1514 $(call if_changed,binman) 1515else 1516flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1517 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1518endif 1519endif 1520#endif 1521 1522u-boot.uim: u-boot.bin FORCE 1523 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1524 1525u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1526 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1527 1528MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE) 1529 1530u-boot.ubl: u-boot-with-spl.bin FORCE 1531 $(call if_changed,mkimage) 1532 1533MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \ 1534 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1535spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1536 $(call if_changed,mkimage) 1537 1538OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1539u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1540 $(call if_changed,pad_cat) 1541 1542u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1543 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1544u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1545 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1546 1547MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1548 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1549spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1550 $(call if_changed,mkimage) 1551 1552ifneq ($(CONFIG_ARCH_SOCFPGA),) 1553quiet_cmd_gensplx4 = GENSPLX4 $@ 1554cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1555 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1556 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1557 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1558 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1559spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1560 $(call if_changed,gensplx4) 1561 1562quiet_cmd_socboot = SOCBOOT $@ 1563cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1564u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1565 $(call if_changed,socboot) 1566 1567quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1568cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1569 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1570 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1571 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1572 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1573 { rm -f $@ spl/u-boot-spl.pad; false; } 1574u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1575 $(call if_changed,gensplpadx4) 1576 1577quiet_cmd_socnandboot = SOCNANDBOOT $@ 1578cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1579u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1580 $(call if_changed,socnandboot) 1581 1582endif 1583 1584ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1585u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE 1586 $(call if_changed,binman) 1587 1588OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1589u-boot-br.bin: u-boot FORCE 1590 $(call if_changed,objcopy) 1591endif 1592 1593quiet_cmd_ldr = LD $@ 1594cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1595 $(filter-out FORCE,$^) -o $@ 1596 1597ifdef CONFIG_X86 1598OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1599u-boot-x86-start16.bin: u-boot FORCE 1600 $(call if_changed,objcopy) 1601 1602OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1603u-boot-x86-reset16.bin: u-boot FORCE 1604 $(call if_changed,objcopy) 1605 1606endif # CONFIG_X86 1607 1608OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1609u-boot-app.efi: u-boot FORCE 1610 $(call if_changed,zobjcopy) 1611 1612u-boot.bin.o: u-boot.bin FORCE 1613 $(call if_changed,efipayload) 1614 1615u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1616 $(call if_changed_dep,cpp_lds) 1617 1618# Rule to link the EFI payload which contains a stub and a U-Boot binary 1619quiet_cmd_u-boot_payload ?= LD $@ 1620 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1621 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1622 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1623 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1624 1625u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1626 $(call if_changed,u-boot_payload) 1627 1628OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1629u-boot-payload.efi: u-boot-payload FORCE 1630 $(call if_changed,zobjcopy) 1631 1632u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1633 $(call if_changed,cat) 1634 1635#Add a target to create boot binary having SPL binary in PBI format 1636#concatenated with u-boot binary. It is need by PowerPC SoC having 1637#internal SRAM <= 512KB. 1638MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1639 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1640 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1641 1642spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1643 $(call if_changed,mkimage) 1644 1645ifeq ($(ARCH),arm) 1646UBOOT_BINLOAD := u-boot.img 1647else 1648UBOOT_BINLOAD := u-boot.bin 1649endif 1650 1651OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1652 --gap-fill=0xff 1653 1654u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1655 $(call if_changed,pad_cat) 1656 1657quiet_cmd_u-boot-elf ?= LD $@ 1658 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1659 $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \ 1660 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \ 1661 -Ttext=$(CONFIG_TEXT_BASE) 1662u-boot.elf: u-boot.bin u-boot-elf.lds 1663 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1664 $(call if_changed,u-boot-elf) 1665 1666u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1667 $(call if_changed_dep,cpp_lds) 1668 1669# MediaTek's ARM-based u-boot needs a header to contains its load address 1670# which is parsed by the BootROM. 1671# If the SPL build is enabled, the header will be added to the spl binary, 1672# and the spl binary and the u-boot.img will be combined into one file. 1673# Otherwise the header will be added to the u-boot.bin directly. 1674 1675ifeq ($(CONFIG_SPL),y) 1676spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1677 1678u-boot-mtk.bin: u-boot-with-spl.bin 1679 $(call if_changed,copy) 1680else 1681MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1682 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1683 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1684 1685u-boot-mtk.bin: u-boot.bin FORCE 1686 $(call if_changed,mkimage) 1687endif 1688 1689quiet_cmd_endian_swap = SWAP $@ 1690 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1691 1692u-boot-swap.bin: u-boot.bin FORCE 1693 $(call if_changed,endian_swap) 1694 1695ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1696 1697# Generate linker list symbols references to force compiler to not optimize 1698# them away when compiling with LTO 1699ifeq ($(LTO_ENABLE),y) 1700u-boot-keep-syms-lto := keep-syms-lto.o 1701u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1702 1703quiet_cmd_keep_syms_lto = KSL $@ 1704 cmd_keep_syms_lto = \ 1705 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1706 1707quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1708 cmd_keep_syms_lto_cc = \ 1709 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1710 1711$(u-boot-keep-syms-lto_c): $(u-boot-main) 1712 $(call if_changed,keep_syms_lto) 1713$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1714 $(call if_changed,keep_syms_lto_cc) 1715else 1716u-boot-keep-syms-lto := 1717endif 1718 1719# Rule to link u-boot 1720# May be overridden by arch/$(ARCH)/config.mk 1721ifeq ($(LTO_ENABLE),y) 1722quiet_cmd_u-boot__ ?= LTO $@ 1723 cmd_u-boot__ ?= \ 1724 $(CC) -nostdlib -nostartfiles \ 1725 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1726 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1727 -T u-boot.lds $(u-boot-init) \ 1728 -Wl,--whole-archive \ 1729 $(u-boot-main) \ 1730 $(u-boot-keep-syms-lto) \ 1731 $(PLATFORM_LIBS) \ 1732 -Wl,--no-whole-archive \ 1733 -Wl,-Map,u-boot.map; \ 1734 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1735else 1736quiet_cmd_u-boot__ ?= LD $@ 1737 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1738 -T u-boot.lds $(u-boot-init) \ 1739 --whole-archive \ 1740 $(u-boot-main) \ 1741 --no-whole-archive \ 1742 $(PLATFORM_LIBS) -Map u-boot.map; \ 1743 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1744endif 1745 1746quiet_cmd_smap = GEN common/system_map.o 1747cmd_smap = \ 1748 smap=`$(call SYSTEM_MAP,u-boot) | \ 1749 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1750 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1751 -c $(srctree)/common/system_map.c -o common/system_map.o 1752 1753u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1754 +$(call if_changed,u-boot__) 1755ifeq ($(CONFIG_KALLSYMS),y) 1756 $(call cmd,smap) 1757 $(call cmd,u-boot__) common/system_map.o 1758endif 1759 1760ifeq ($(CONFIG_RISCV),y) 1761 @tools/prelink-riscv $@ 0 1762endif 1763 1764quiet_cmd_sym ?= SYM $@ 1765 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1766u-boot.sym: u-boot FORCE 1767 $(call if_changed,sym) 1768 1769# Environment processing 1770# --------------------------------------------------------------------------- 1771 1772# Directory where we expect the .env file, if it exists 1773ENV_DIR := $(srctree)/board/$(BOARDDIR) 1774 1775# Basename of .env file, stripping quotes 1776ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%) 1777 1778# Filename of .env file 1779ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env 1780 1781# Default filename, if CONFIG_ENV_SOURCE_FILE is empty 1782ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env 1783 1784# Select between the CONFIG_ENV_SOURCE_FILE and the default one 1785ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD))) 1786 1787# Run the environment text file through the preprocessor, but only if it is 1788# non-empty, to save time and possible build errors if something is wonky with 1789# the board. 1790# If there is no ENV_FILE, produce an empty output file, to prevent a previous 1791# build's file being used in the case of in-tree builds. 1792quiet_cmd_gen_envp = ENVP $@ 1793 cmd_gen_envp = \ 1794 if [ -s "$(ENV_FILE)" ]; then \ 1795 $(CPP) -P $(CFLAGS) -x assembler-with-cpp -D__ASSEMBLY__ \ 1796 -D__UBOOT_CONFIG__ \ 1797 -I . -I include -I $(srctree)/include \ 1798 -include linux/kconfig.h -include include/config.h \ 1799 -I$(srctree)/arch/$(ARCH)/include \ 1800 $< -o $@; \ 1801 else \ 1802 rm -f $@; \ 1803 touch $@ ; \ 1804 fi 1805include/generated/env.in: include/generated/env.txt FORCE 1806 $(call cmd,gen_envp) 1807 1808# Regenerate the environment if it changes 1809# We use 'wildcard' since the file is not required to exist (at present), in 1810# which case we don't want this dependency, but instead should create an empty 1811# file 1812# This rule is useful since it shows the source file for the environment 1813quiet_cmd_envc = ENVC $@ 1814 cmd_envc = \ 1815 if [ -f "$<" ]; then \ 1816 cat $< > $@; \ 1817 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \ 1818 echo "Missing file $(ENV_FILE_CFG)"; \ 1819 else \ 1820 touch $@ ; \ 1821 fi 1822 1823include/generated/env.txt: $(wildcard $(ENV_FILE)) FORCE 1824 $(call cmd,envc) 1825 1826# Write out the resulting environment, converted to a C string 1827quiet_cmd_gen_envt = ENVT $@ 1828 cmd_gen_envt = \ 1829 awk -f $(srctree)/scripts/env2string.awk $< >$@ 1830$(env_h): include/generated/env.in 1831 $(call cmd,gen_envt) 1832 1833# --------------------------------------------------------------------------- 1834 1835# The actual objects are generated when descending, 1836# make sure no implicit rule kicks in 1837$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1838 1839# Handle descending into subdirectories listed in $(u-boot-dirs) 1840# Preset locale variables to speed up the build process. Limit locale 1841# tweaks to this spot to avoid wrong language settings when running 1842# make menuconfig etc. 1843# Error messages still appears in the original language 1844 1845PHONY += $(u-boot-dirs) 1846$(u-boot-dirs): prepare scripts 1847 $(Q)$(MAKE) $(build)=$@ 1848 1849tools: prepare 1850# The "tools" are needed early 1851$(filter-out tools, $(u-boot-dirs)): tools 1852# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1853# is "yes"), so compile examples after U-Boot is compiled. 1854examples: $(filter-out examples, $(u-boot-dirs)) 1855 1856define filechk_uboot.release 1857 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1858endef 1859 1860# Store (new) UBOOTRELEASE string in include/config/uboot.release 1861include/config/uboot.release: include/config/auto.conf FORCE 1862 $(call filechk,uboot.release) 1863 1864 1865# Things we need to do before we recursively start building the kernel 1866# or the modules are listed in "prepare". 1867# A multi level approach is used. prepareN is processed before prepareN-1. 1868# archprepare is used in arch Makefiles and when processed asm symlink, 1869# version.h and scripts_basic is processed / created. 1870 1871# Listed in dependency order 1872PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1873 1874# prepare3 is used to check if we are building in a separate output directory, 1875# and if so do: 1876# 1) Check that make has not been executed in the kernel src $(srctree) 1877prepare3: include/config/uboot.release 1878ifneq ($(KBUILD_SRC),) 1879 @$(kecho) ' Using $(srctree) as source for U-Boot' 1880 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1881 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1882 echo >&2 " in the '$(srctree)' directory.";\ 1883 /bin/false; \ 1884 fi; 1885endif 1886 1887# prepare2 creates a makefile if using a separate output directory 1888prepare2: prepare3 outputmakefile cfg 1889 1890prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \ 1891 include/config/auto.conf 1892ifeq ($(wildcard $(LDSCRIPT)),) 1893 @echo >&2 " Could not find linker script." 1894 @/bin/false 1895endif 1896 1897ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1898prepare1: $(defaultenv_h) 1899 1900envtools: $(defaultenv_h) 1901endif 1902 1903archprepare: prepare1 scripts_basic 1904 1905prepare0: archprepare FORCE 1906 $(Q)$(MAKE) $(build)=. 1907 1908# All the preparing.. 1909prepare: prepare0 1910 1911# Generate some files 1912# --------------------------------------------------------------------------- 1913 1914# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1915define filechk_version.h 1916 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1917 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1918 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1919 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1920 sed -e "s/^0*//"); \ 1921 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1922 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1923endef 1924 1925# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1926# The BSD date on the other hand behaves different and would produce errors 1927# with the misused '-d' switch. Respect that and search a working date with 1928# well known pre- and suffixes for the GNU variant of date. 1929define filechk_timestamp.h 1930 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1931 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1932 DATE=""; \ 1933 for date in gdate date.gnu date; do \ 1934 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1935 done; \ 1936 if test -n "$${DATE}"; then \ 1937 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1938 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1939 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1940 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1941 else \ 1942 return 42; \ 1943 fi; \ 1944 else \ 1945 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1946 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1947 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1948 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1949 fi) 1950endef 1951 1952define filechk_defaultenv.h 1953 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ 1954 tr '\n' '\0' | \ 1955 sed -e 's/\\\x0\s*//g' | \ 1956 xxd -i ; ) 1957endef 1958 1959define filechk_dt.h 1960 (if test -n "$${DEVICE_TREE}"; then \ 1961 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 1962 else \ 1963 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 1964 fi) 1965endef 1966 1967$(version_h): include/config/uboot.release FORCE 1968 $(call filechk,version.h) 1969 1970$(timestamp_h): $(srctree)/Makefile FORCE 1971 $(call filechk,timestamp.h) 1972 1973$(dt_h): $(srctree)/Makefile FORCE 1974 $(call filechk,dt.h) 1975 1976$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1977 $(call filechk,defaultenv.h) 1978 1979# --------------------------------------------------------------------------- 1980# Devicetree files 1981 1982ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 1983dtstree := arch/$(SRCARCH)/boot/dts 1984endif 1985 1986ifneq ($(dtstree),) 1987 1988%.dtb: prepare3 scripts_dtc 1989 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 1990 1991PHONY += dtbs dtbs_install 1992dtbs: prepare3 scripts_dtc 1993 $(Q)$(MAKE) $(build)=$(dtstree) 1994 1995dtbs_install: 1996 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 1997 1998endif 1999 2000# Check dtc and pylibfdt, if DTC is provided, else build them
2001PHONY += scripts_dtc 2002scripts_dtc: scripts_basic 2003 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ 2004 $(MAKE) $(build)=scripts/dtc; \ 2005 else \ 2006 if ! $(DTC) -v >/dev/null; then \ 2007 echo '*** Failed to check dtc version: $(DTC)'; \ 2008 false; \ 2009 else \ 2010 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ 2011 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ 2012 false; \ 2013 else \ 2014 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ 2015 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ 2016 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ 2017 false; \ 2018 fi; \ 2019 fi; \ 2020 fi; \ 2021 fi; \ 2022 fi 2023 2024# --------------------------------------------------------------------------- 2025quiet_cmd_cpp_lds = LDS $@ 2026cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 2027 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 2028 2029u-boot.lds: $(LDSCRIPT) prepare FORCE 2030 $(call if_changed_dep,cpp_lds) 2031 2032spl/u-boot-spl.bin: spl/u-boot-spl 2033 @: 2034 $(SPL_SIZE_CHECK) 2035 2036spl/u-boot-spl-dtb.bin: spl/u-boot-spl 2037 @: 2038 2039spl/u-boot-spl-dtb.hex: spl/u-boot-spl 2040 @: 2041 2042spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb) 2043 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 2044 2045spl/sunxi-spl.bin: spl/u-boot-spl 2046 @: 2047 2048spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2049 @: 2050 2051spl/u-boot-spl.sfp: spl/u-boot-spl 2052 @: 2053 2054spl/boot.bin: spl/u-boot-spl 2055 @: 2056 2057tpl/u-boot-tpl.bin: tpl/u-boot-tpl 2058 @: 2059 $(TPL_SIZE_CHECK) 2060 2061tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2062 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 2063 2064vpl/u-boot-vpl.bin: vpl/u-boot-vpl 2065 @: 2066 $(VPL_SIZE_CHECK) 2067 2068vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2069 $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.spl all 2070 2071TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2072 2073FIND := find 2074FINDFLAGS := -L 2075 2076tags ctags: 2077 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2078 -name '*.[chS]' -print` 2079 ln -s ctags tags 2080 2081etags: 2082 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2083 -name '*.[chS]' -print` 2084cscope: 2085 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2086 cscope.files 2087 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2088 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2089 mv cscope.files.no-symlinks cscope.files 2090 cscope -b -q -k 2091 2092SYSTEM_MAP = \ 2093 $(NM) $1 | \ 2094 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2095 LC_ALL=C sort 2096System.map: u-boot 2097 @$(call SYSTEM_MAP,$<) > $@ 2098 2099######################################################################### 2100 2101# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2102# R_AARCH64_RELATIVE (64-bit). 2103checkarmreloc: u-boot 2104 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 2105 grep R_A | sort -u`"; \ 2106 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2107 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2108 echo "$< contains unexpected relocations: $$RELOC"; \ 2109 false; \ 2110 fi 2111 2112tools/version.h: include/version.h 2113 $(Q)mkdir -p $(dir $@) 2114 $(call if_changed,copy) 2115 2116envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2117 $(Q)$(MAKE) $(build)=tools/env 2118 2119tools-only: export TOOLS_ONLY=y 2120tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2121 $(Q)$(MAKE) $(build)=tools 2122 2123tools-all: export HOST_TOOLS_ALL=y 2124tools-all: envtools tools ; 2125 2126cross_tools: export CROSS_BUILD_TOOLS=y 2127cross_tools: tools ; 2128 2129.PHONY : CHANGELOG 2130CHANGELOG: 2131 git log --no-merges U-Boot-1_1_5.. | \ 2132 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2133 2134######################################################################### 2135 2136### 2137# Cleaning is done on three levels. 2138# make clean Delete most generated files 2139# Leave enough to build external modules 2140# make mrproper Delete the current configuration, and all generated files 2141# make distclean Remove editor backup files, patch leftover files and the like 2142 2143# Directories & files removed with 'make clean' 2144CLEAN_DIRS += $(MODVERDIR) \ 2145 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 2146 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2147 2148CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \ 2149 include/generated/env.* drivers/video/u_boot_logo.S \ 2150 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \ 2151 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2152 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2153 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \ 2154 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \ 2155 itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \ 2156 mkimage.rom.mkimage rom.map simple-bin.map simple-bin-spi.map \ 2157 idbloader-spi.img 2158 2159# Directories & files removed with 'make mrproper' 2160MRPROPER_DIRS += include/config include/generated spl tpl \ 2161 .tmp_objdiff doc/output include/asm 2162 2163# Remove include/asm symlink created by U-Boot before v2014.01 2164MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2165 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2166 drivers/video/fonts/*.S include/asm 2167 2168# clean - Delete most, but leave enough to build external modules 2169# 2170clean: rm-dirs := $(CLEAN_DIRS) 2171clean: rm-files := $(CLEAN_FILES) 2172 2173clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2174 2175clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2176 2177PHONY += $(clean-dirs) clean archclean 2178$(clean-dirs): 2179 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2180 2181clean: $(clean-dirs) 2182 $(call cmd,rmdirs) 2183 $(call cmd,rmfiles) 2184 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2185 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2186 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2187 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2188 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2189 -o -name '*.asn1.[ch]' \ 2190 -o -name '*.symtypes' -o -name 'modules.order' \ 2191 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2192 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \ 2193 -o -name 'dsdt_generated.c' \ 2194 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2195 -type f -print | xargs rm -f 2196 2197# mrproper - Delete all generated files, including .config 2198# 2199mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2200mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2201mrproper-dirs := $(addprefix _mrproper_,scripts) 2202 2203PHONY += $(mrproper-dirs) mrproper archmrproper 2204$(mrproper-dirs): 2205 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2206 2207mrproper: clean $(mrproper-dirs) 2208 $(call cmd,rmdirs) 2209 $(call cmd,rmfiles) 2210 @rm -f arch/*/include/asm/arch 2211 2212# distclean 2213# 2214PHONY += distclean 2215 2216distclean: mrproper 2217 @find $(srctree) $(RCS_FIND_IGNORE) \ 2218 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2219 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2220 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2221 -o -name '*.pyc' \) \ 2222 -type f -print | xargs rm -f 2223 @rm -f boards.cfg CHANGELOG 2224 2225# See doc/develop/python_cq.rst 2226PHONY += pylint pylint_err 2227PYLINT_BASE := scripts/pylint.base 2228PYLINT_CUR := pylint.cur 2229PYLINT_DIFF := pylint.diff 2230pylint: 2231 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)" 2232 $(Q)mkdir -p pylint.out 2233 $(Q)rm -f pylint.out/out* 2234 $(Q)find tools test -name "*.py" \ 2235 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \ 2236 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _ 2237 $(Q)rm -f $(PYLINT_CUR) 2238 $(Q)( cd pylint.out; for f in *; do \ 2239 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \ 2240 done ) | sort > $(PYLINT_CUR) 2241 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \ 2242 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \ 2243 comm -3 $$base $$cur > $(PYLINT_DIFF); \ 2244 if [ -s $(PYLINT_DIFF) ]; then \ 2245 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \ 2246 echo; \ 2247 echo "Added files:"; \ 2248 comm -13 $$base $$cur; \ 2249 echo; \ 2250 echo "Removed files:"; \ 2251 comm -23 $$base $$cur; \ 2252 false; \ 2253 else \ 2254 rm $$base $$cur $(PYLINT_DIFF); \ 2255 fi 2256 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \ 2257 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \ 2258 echo "$$base_file: Score was $$base_val, now $$cur_val"; \ 2259 bad=true; fi; \ 2260 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \ 2261 if $$bad; then \ 2262 echo "Some files have regressed, please fix"; \ 2263 false; \ 2264 else \ 2265 echo "No pylint regressions"; \ 2266 fi 2267 2268# Check for errors only 2269pylint_err: 2270 $(Q)pylint -E -j 0 --ignore-imports=yes \ 2271 $(shell find tools test -name "*.py") 2272 2273backup: 2274 F=`basename $(srctree)` ; cd .. ; \ 2275 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2276 2277help: 2278 @echo 'Cleaning targets:' 2279 @echo ' clean - Remove most generated files but keep the config' 2280 @echo ' mrproper - Remove all generated files + config + various backup files' 2281 @echo ' distclean - mrproper + remove editor backup and patch files' 2282 @echo '' 2283 @echo 'Configuration targets:' 2284 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2285 @echo '' 2286 @echo 'Test targets:' 2287 @echo '' 2288 @echo ' check - Run all automated tests that use sandbox' 2289 @echo ' pcheck - Run quick automated tests in parallel' 2290 @echo ' qcheck - Run quick automated tests that use sandbox' 2291 @echo ' tcheck - Run quick automated tests on tools' 2292 @echo ' pylint - Run pylint on all Python files' 2293 @echo '' 2294 @echo 'Other generic targets:' 2295 @echo ' all - Build all necessary images depending on configuration' 2296 @echo ' tests - Build U-Boot for sandbox and run tests' 2297 @echo '* u-boot - Build the bare u-boot' 2298 @echo ' dir/ - Build all files in dir and below' 2299 @echo ' dir/file.[oisS] - Build specified target only' 2300 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2301 @echo ' (requires a recent binutils and recent build (System.map))' 2302 @echo ' tags/ctags - Generate ctags file for editors' 2303 @echo ' etags - Generate etags file for editors' 2304 @echo ' cscope - Generate cscope index' 2305 @echo ' ubootrelease - Output the release version string (use with make -s)' 2306 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2307 @echo " cfg - Don't build, just create the .cfg files" 2308 @echo " envtools - Build only the target-side environment tools" 2309 @echo '' 2310 @echo 'Static analysers' 2311 @echo ' checkstack - Generate a list of stack hogs' 2312 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2313 @echo '' 2314 @echo 'Documentation targets:' 2315 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2316 @echo '' 2317 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2318 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2319 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2320 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2321 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2322 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2323 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2324 @echo ' 1: warnings which may be relevant and do not occur too often' 2325 @echo ' 2: warnings which occur quite often but may still be relevant' 2326 @echo ' 3: more obscure warnings, can most likely be ignored' 2327 @echo ' Multiple levels can be combined with W=12 or W=123' 2328 @echo '' 2329 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2330 @echo 'For further info see the ./README file' 2331 2332tests check: 2333 $(srctree)/test/run 2334 2335pcheck: 2336 $(srctree)/test/run parallel 2337 2338qcheck: 2339 $(srctree)/test/run quick 2340 2341tcheck: 2342 $(srctree)/test/run tools 2343 2344# Documentation targets 2345# --------------------------------------------------------------------------- 2346DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2347 linkcheckdocs dochelp refcheckdocs texinfodocs infodocs 2348PHONY += $(DOC_TARGETS) 2349$(DOC_TARGETS): scripts_basic FORCE 2350 $(Q)$(MAKE) $(build)=doc $@ 2351 2352PHONY += checkstack ubootrelease ubootversion 2353 2354checkstack: 2355 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2356 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2357 2358ubootrelease: 2359 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2360 2361ubootversion: 2362 @echo $(UBOOTVERSION) 2363 2364# Single targets 2365# --------------------------------------------------------------------------- 2366# Single targets are compatible with: 2367# - build with mixed source and output 2368# - build with separate output dir 'make O=...' 2369# - external modules 2370# 2371# target-dir => where to store outputfile 2372# build-dir => directory in kernel source tree to use 2373 2374ifeq ($(KBUILD_EXTMOD),) 2375 build-dir = $(patsubst %/,%,$(dir $@)) 2376 target-dir = $(dir $@) 2377else 2378 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2379 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2380 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2381endif 2382 2383%.s: %.c prepare scripts FORCE 2384 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2385%.i: %.c prepare scripts FORCE 2386 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2387%.o: %.c prepare scripts FORCE 2388 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2389%.lst: %.c prepare scripts FORCE 2390 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2391%.s: %.S prepare scripts FORCE 2392 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2393%.o: %.S prepare scripts FORCE 2394 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2395%.symtypes: %.c prepare scripts FORCE 2396 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2397 2398# Modules 2399/: prepare scripts FORCE 2400 $(cmd_crmodverdir) 2401 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2402 $(build)=$(build-dir) 2403%/: prepare scripts FORCE 2404 $(cmd_crmodverdir) 2405 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2406 $(build)=$(build-dir) 2407%.ko: prepare scripts FORCE 2408 $(cmd_crmodverdir) 2409 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2410 $(build)=$(build-dir) $(@:.ko=.o) 2411 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2412 2413quiet_cmd_genenv = GENENV $@ 2414cmd_genenv = \ 2415 $(objtree)/tools/printinitialenv | \ 2416 sed -e '/^\s*$$/d' | \ 2417 sort --field-separator== -k1,1 --stable -o $@ 2418 2419u-boot-initial-env: $(env_h) FORCE 2420 $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv 2421 $(call if_changed,genenv) 2422 2423# Consistency checks 2424# --------------------------------------------------------------------------- 2425 2426PHONY += coccicheck 2427 2428coccicheck: 2429 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2430 2431# FIXME Should go into a make.lib or something 2432# =========================================================================== 2433 2434quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2435 cmd_rmdirs = rm -rf $(rm-dirs) 2436 2437quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2438 cmd_rmfiles = rm -f $(rm-files) 2439 2440# read all saved command lines 2441 2442cmd_files := $(wildcard .*.cmd) 2443 2444ifneq ($(cmd_files),) 2445 $(cmd_files): ; # Do not try to update included dependency files 2446 include $(cmd_files) 2447endif 2448 2449endif #ifeq ($(config-targets),1) 2450endif #ifeq ($(mixed-targets),1) 2451endif # skip-makefile 2452 2453PHONY += FORCE 2454FORCE: 2455 2456# Declare the contents of the PHONY variable as phony. We keep that 2457# information in a variable so we can use it in if_changed and friends. 2458.PHONY: $(PHONY) 2459