1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2021 4PATCHLEVEL = 10 5SUBLEVEL = 6EXTRAVERSION = 7NAME = 8 9# *DOCUMENTATION* 10# To see a list of typical targets execute "make help" 11# More info can be located in ./README 12# Comments in this file are targeted only to the developer, do not 13# expect to learn how to build the kernel reading this file. 14 15# 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) $(HOSTLDLIBS) 295 296# With the move to GCC 6, we have implicitly upgraded our language 297# standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html). 298# Some Linux distributions (including RHEL7, SLES13, Debian 8) still 299# have older compilers as their default, so we make it explicit for 300# these that our host tools are GNU11 (i.e. C11 w/ GNU extensions). 301CSTD_FLAG := -std=gnu11 302ifeq ($(HOSTOS),linux) 303KBUILD_HOSTCFLAGS += $(CSTD_FLAG) 304endif 305 306ifeq ($(HOSTOS),cygwin) 307KBUILD_HOSTCFLAGS += -ansi 308endif 309 310# Mac OS X / Darwin's C preprocessor is Apple specific. It 311# generates numerous errors and warnings. We want to bypass it 312# and use GNU C's cpp. To do this we pass the -traditional-cpp 313# option to the compiler. Note that the -traditional-cpp flag 314# DOES NOT have the same semantics as GNU C's flag, all it does 315# is invoke the GNU preprocessor in stock ANSI/ISO C fashion. 316# 317# Apple's linker is similar, thanks to the new 2 stage linking 318# multiple symbol definitions are treated as errors, hence the 319# -multiply_defined suppress option to turn off this error. 320# 321ifeq ($(HOSTOS),darwin) 322# get major and minor product version (e.g. '10' and '6' for Snow Leopard) 323DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.') 324DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.') 325 326os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \ 327 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 328 329os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \ 330 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;) 331 332# Snow Leopards build environment has no longer restrictions as described above 333HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc") 334KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp") 335KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress") 336 337# macOS Mojave (10.14.X) 338# Undefined symbols for architecture x86_64: "_PyArg_ParseTuple" 339KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "") 340endif 341 342# Decide whether to build built-in, modular, or both. 343# Normally, just do built-in. 344 345KBUILD_MODULES := 346KBUILD_BUILTIN := 1 347 348# If we have only "make modules", don't compile built-in objects. 349# When we're building modules with modversions, we need to consider 350# the built-in objects during the descend as well, in order to 351# make sure the checksums are up to date before we record them. 352 353ifeq ($(MAKECMDGOALS),modules) 354 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 355endif 356 357# If we have "make <whatever> modules", compile modules 358# in addition to whatever we do anyway. 359# Just "make" or "make all" shall build modules as well 360 361# U-Boot does not need modules 362#ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 363# KBUILD_MODULES := 1 364#endif 365 366#ifeq ($(MAKECMDGOALS),) 367# KBUILD_MODULES := 1 368#endif 369 370# Check ths size of a binary: 371# Args: 372# $1: File to check 373# #2: Size limit in bytes (decimal or 0xhex) 374define size_check 375 actual=$$( wc -c $1 | awk '{print $$1}'); \ 376 limit=$$( printf "%d" $2 ); \ 377 if test $$actual -gt $$limit; then \ 378 echo "$1 exceeds file size limit:" >&2; \ 379 echo " limit: $$(printf %#x $$limit) bytes" >&2; \ 380 echo " actual: $$(printf %#x $$actual) bytes" >&2; \ 381 echo " excess: $$(printf %#x $$((actual - limit))) bytes" >&2;\ 382 exit 1; \ 383 fi 384endef 385export size_check 386 387export KBUILD_MODULES KBUILD_BUILTIN 388export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 389 390# We need some generic definitions (do not try to remake the file). 391scripts/Kbuild.include: ; 392include scripts/Kbuild.include 393 394# Make variables (CC, etc...) 395 396AS = $(CROSS_COMPILE)as 397# Always use GNU ld 398ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),) 399LD = $(CROSS_COMPILE)ld.bfd 400else 401LD = $(CROSS_COMPILE)ld 402endif 403CC = $(CROSS_COMPILE)gcc 404CPP = $(CC) -E 405AR = $(CROSS_COMPILE)ar 406NM = $(CROSS_COMPILE)nm 407LDR = $(CROSS_COMPILE)ldr 408STRIP = $(CROSS_COMPILE)strip 409OBJCOPY = $(CROSS_COMPILE)objcopy 410OBJDUMP = $(CROSS_COMPILE)objdump 411LEX = flex 412YACC = bison 413AWK = awk 414PERL = perl 415PYTHON ?= python 416PYTHON2 = python2 417PYTHON3 ?= python3 418DTC ?= $(objtree)/scripts/dtc/dtc 419CHECK = sparse 420 421CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 422 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF) 423 424KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 425 426KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 427 -Wno-format-security \ 428 -fno-builtin -ffreestanding $(CSTD_FLAG) 429KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 430KBUILD_AFLAGS := -D__ASSEMBLY__ 431KBUILD_LDFLAGS := 432 433ifeq ($(cc-name),clang) 434ifneq ($(CROSS_COMPILE),) 435CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 436GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 437CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 438GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 439endif 440ifneq ($(GCC_TOOLCHAIN),) 441CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 442endif 443KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 444KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 445KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 446KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 447endif 448 449# Don't generate position independent code 450KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 451KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 452 453# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 454UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 455UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 456 457export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 458export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 459export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 460export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 461export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 462export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 463 464export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 465export KBUILD_CFLAGS KBUILD_AFLAGS 466 467export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 468 469# When compiling out-of-tree modules, put MODVERDIR in the module 470# tree rather than in the kernel tree. The kernel tree might 471# even be read-only. 472export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 473 474# Files to ignore in find ... statements 475 476export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 477 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 478 -prune -o 479export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 480 --exclude CVS --exclude .pc --exclude .hg --exclude .git 481 482# =========================================================================== 483# Rules shared between *config targets and build targets 484 485# Basic helpers built in scripts/ 486PHONY += scripts_basic 487scripts_basic: 488 $(Q)$(MAKE) $(build)=scripts/basic 489 $(Q)rm -f .tmp_quiet_recordmcount 490 491# To avoid any implicit rule to kick in, define an empty command. 492scripts/basic/%: scripts_basic ; 493 494PHONY += outputmakefile 495# outputmakefile generates a Makefile in the output directory, if using a 496# separate output directory. This allows convenient use of make in the 497# output directory. 498outputmakefile: 499ifneq ($(KBUILD_SRC),) 500 $(Q)ln -fsn $(srctree) source 501 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) 502endif 503 504# To make sure we do not include .config for any of the *config targets 505# catch them early, and hand them over to scripts/kconfig/Makefile 506# It is allowed to specify more targets when calling make, including 507# mixing *config targets and build targets. 508# For example 'make oldconfig all'. 509# Detect when mixed targets is specified, and make a second invocation 510# of make so .config is not included in this case either (for *config). 511 512version_h := include/generated/version_autogenerated.h 513timestamp_h := include/generated/timestamp_autogenerated.h 514defaultenv_h := include/generated/defaultenv_autogenerated.h 515dt_h := include/generated/dt.h 516 517no-dot-config-targets := clean clobber mrproper distclean \ 518 help %docs check% coccicheck \ 519 ubootversion backup tests check qcheck tcheck 520 521config-targets := 0 522mixed-targets := 0 523dot-config := 1 524 525ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 526 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 527 dot-config := 0 528 endif 529endif 530 531ifeq ($(KBUILD_EXTMOD),) 532 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 533 config-targets := 1 534 ifneq ($(words $(MAKECMDGOALS)),1) 535 mixed-targets := 1 536 endif 537 endif 538endif 539 540ifeq ($(mixed-targets),1) 541# =========================================================================== 542# We're called with mixed targets (*config and build targets). 543# Handle them one by one. 544 545PHONY += $(MAKECMDGOALS) __build_one_by_one 546 547$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 548 @: 549 550__build_one_by_one: 551 $(Q)set -e; \ 552 for i in $(MAKECMDGOALS); do \ 553 $(MAKE) -f $(srctree)/Makefile $$i; \ 554 done 555 556else 557ifeq ($(config-targets),1) 558# =========================================================================== 559# *config targets only - make sure prerequisites are updated, and descend 560# in scripts/kconfig to make the *config target 561 562KBUILD_DEFCONFIG := sandbox_defconfig 563export KBUILD_DEFCONFIG KBUILD_KCONFIG 564 565config: scripts_basic outputmakefile FORCE 566 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 567 568%config: scripts_basic outputmakefile FORCE 569 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 570 571else 572# =========================================================================== 573# Build targets only - this includes vmlinux, arch specific targets, clean 574# targets and others. In general all targets except *config targets. 575 576# Additional helpers built in scripts/ 577# Carefully list dependencies so we do not try to build scripts twice 578# in parallel 579PHONY += scripts 580scripts: scripts_basic scripts_dtc include/config/auto.conf 581 $(Q)$(MAKE) $(build)=$(@) 582 583ifeq ($(dot-config),1) 584# Read in config 585-include include/config/auto.conf 586 587# Read in dependencies to all Kconfig* files, make sure to run 588# oldconfig if changes are detected. 589-include include/config/auto.conf.cmd 590 591# To avoid any implicit rule to kick in, define an empty command 592$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 593 594# If .config is newer than include/config/auto.conf, someone tinkered 595# with it and forgot to run make oldconfig. 596# if auto.conf.cmd is missing then we are probably in a cleaned tree so 597# we execute the config step to be sure to catch updated Kconfig files 598include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 599 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 600 @# If the following part fails, include/config/auto.conf should be 601 @# deleted so "make silentoldconfig" will be re-run on the next build. 602 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 603 { rm -f include/config/auto.conf; false; } 604 @# include/config.h has been updated after "make silentoldconfig". 605 @# We need to touch include/config/auto.conf so it gets newer 606 @# than include/config.h. 607 @# Otherwise, 'make silentoldconfig' would be invoked twice. 608 $(Q)touch include/config/auto.conf 609 610u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: 611 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 612 613-include include/autoconf.mk 614-include include/autoconf.mk.dep 615 616# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 617# is up-to-date. When we switch to a different board configuration, old CONFIG 618# macros are still remaining in include/config/auto.conf. Without the following 619# gimmick, wrong config.mk would be included leading nasty warnings/errors. 620ifneq ($(wildcard $(KCONFIG_CONFIG)),) 621ifneq ($(wildcard include/config/auto.conf),) 622autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 623 include/config/auto.conf) 624ifeq ($(autoconf_is_old),) 625include config.mk 626include arch/$(ARCH)/Makefile 627endif 628endif 629endif 630 631# These are set by the arch-specific config.mk. Make sure they are exported 632# so they can be used when building an EFI application. 633export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 634export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 635export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 636export CFLAGS_EFI # Compiler flags to add when building EFI app 637export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 638export EFI_TARGET # binutils target if EFI is natively supported 639 640# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 641# that (or fail if absent). Otherwise, search for a linker script in a 642# standard location. 643 644ifndef LDSCRIPT 645 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 646 ifdef CONFIG_SYS_LDSCRIPT 647 # need to strip off double quotes 648 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 649 endif 650endif 651 652# If there is no specified link script, we look in a number of places for it 653ifndef LDSCRIPT 654 ifeq ($(wildcard $(LDSCRIPT)),) 655 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 656 endif 657 ifeq ($(wildcard $(LDSCRIPT)),) 658 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 659 endif 660 ifeq ($(wildcard $(LDSCRIPT)),) 661 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 662 endif 663endif 664 665else 666# Dummy target needed, because used as prerequisite 667include/config/auto.conf: ; 668endif # $(dot-config) 669 670# 671# Xtensa linker script cannot be preprocessed with -ansi because of 672# preprocessor operations on strings that don't make C identifiers. 673# 674ifeq ($(CONFIG_XTENSA),) 675LDPPFLAGS += -ansi 676endif 677 678ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 679KBUILD_CFLAGS += -Os 680else 681KBUILD_CFLAGS += -O2 682endif 683 684LTO_CFLAGS := 685LTO_FINAL_LDFLAGS := 686export LTO_CFLAGS LTO_FINAL_LDFLAGS 687ifdef CONFIG_LTO 688 ifeq ($(cc-name),clang) 689 LTO_CFLAGS += -flto 690 LTO_FINAL_LDFLAGS += -flto 691 692 AR = $(shell $(CC) -print-prog-name=llvm-ar) 693 NM = $(shell $(CC) -print-prog-name=llvm-nm) 694 else 695 NPROC := $(shell nproc 2>/dev/null || echo 1) 696 LTO_CFLAGS += -flto=$(NPROC) 697 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 698 699 # use plugin aware tools 700 AR = $(CROSS_COMPILE)gcc-ar 701 NM = $(CROSS_COMPILE)gcc-nm 702 endif 703 704 CFLAGS_NON_EFI += $(LTO_CFLAGS) 705 706 KBUILD_CFLAGS += $(LTO_CFLAGS) 707endif 708 709ifeq ($(CONFIG_STACKPROTECTOR),y) 710KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 711CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 712else 713KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 714endif 715KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 716 717# disable pointer signed / unsigned warnings in gcc 4.0 718KBUILD_CFLAGS += -Wno-pointer-sign 719 720# disable stringop warnings in gcc 8+ 721KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 722 723KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 724KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 725KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 726 727# Enabled with W=2, disabled by default as noisy 728KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 729 730# change __FILE__ to the relative path from the srctree 731KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 732 733KBUILD_CFLAGS += -g 734# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 735# option to the assembler. 736KBUILD_AFLAGS += -g 737 738# Report stack usage if supported 739# ARC tools based on GCC 7.1 has an issue with stack usage 740# with naked functions, see commit message for more details 741ifndef CONFIG_ARC 742ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 743 KBUILD_CFLAGS += -fstack-usage 744endif 745endif 746 747KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 748KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 749 750ifdef CONFIG_CC_IS_CLANG 751KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 752KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 753KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 754KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 755# Quiet clang warning: comparison of unsigned expression < 0 is always false 756KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 757# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 758# source of a reference will be _MergedGlobals and not on of the whitelisted names. 759# See modpost pattern 2 760KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 761KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 762endif 763 764# These warnings generated too much noise in a regular build. 765# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 766KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 767 768# Prohibit date/time macros, which would make the build non-deterministic 769KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 770 771include scripts/Makefile.extrawarn 772 773# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 774KBUILD_CPPFLAGS += $(KCPPFLAGS) 775KBUILD_AFLAGS += $(KAFLAGS) 776KBUILD_CFLAGS += $(KCFLAGS) 777 778KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 779 780# Use UBOOTINCLUDE when you must reference the include/ directory. 781# Needed to be compatible with the O= option 782UBOOTINCLUDE := \ 783 -Iinclude \ 784 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 785 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \ 786 $(if $(CONFIG_HAS_THUMB2), \ 787 $(if $(CONFIG_CPU_V7M), \ 788 -I$(srctree)/arch/arm/thumb1/include), \ 789 -I$(srctree)/arch/arm/thumb1/include)) \ 790 -I$(srctree)/arch/$(ARCH)/include \ 791 -include $(srctree)/include/linux/kconfig.h 792 793NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 794 795# FIX ME 796cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 797 $(NOSTDINC_FLAGS) 798c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 799 800######################################################################### 801# U-Boot objects....order is important (i.e. start must be first) 802 803HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 804 805libs-$(CONFIG_API) += api/ 806libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 807libs-y += cmd/ 808libs-y += common/ 809libs-$(CONFIG_OF_EMBED) += dts/ 810libs-y += env/ 811libs-y += lib/ 812libs-y += fs/ 813libs-y += net/ 814libs-y += disk/ 815libs-y += drivers/ 816libs-y += drivers/dma/ 817libs-y += drivers/gpio/ 818libs-y += drivers/net/ 819libs-y += drivers/net/phy/ 820libs-y += drivers/power/ \ 821 drivers/power/domain/ \ 822 drivers/power/fuel_gauge/ \ 823 drivers/power/mfd/ \ 824 drivers/power/pmic/ \ 825 drivers/power/battery/ \ 826 drivers/power/regulator/ 827libs-y += drivers/spi/ 828libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/ 829libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 830libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 831libs-$(CONFIG_$(SPL_)ALTERA_SDRAM) += drivers/ddr/altera/ 832libs-y += drivers/serial/ 833libs-y += drivers/usb/cdns3/ 834libs-y += drivers/usb/dwc3/ 835libs-y += drivers/usb/common/ 836libs-y += drivers/usb/emul/ 837libs-y += drivers/usb/eth/ 838libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/ 839libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 840libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 841libs-y += drivers/usb/host/ 842libs-y += drivers/usb/mtu3/ 843libs-y += drivers/usb/musb/ 844libs-y += drivers/usb/musb-new/ 845libs-y += drivers/usb/phy/ 846libs-y += drivers/usb/ulpi/ 847ifdef CONFIG_POST 848libs-y += post/ 849endif 850libs-$(CONFIG_UNIT_TEST) += test/ 851libs-$(CONFIG_UT_ENV) += test/env/ 852libs-$(CONFIG_UT_OPTEE) += test/optee/ 853libs-$(CONFIG_UT_OVERLAY) += test/overlay/ 854 855libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/) 856 857libs-y := $(sort $(libs-y)) 858 859u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 860 861u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 862 863libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 864 865u-boot-init := $(head-y) 866u-boot-main := $(libs-y) 867 868 869# Add GCC lib 870ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 871PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 872else 873PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 874endif 875PLATFORM_LIBS += $(PLATFORM_LIBGCC) 876 877ifdef CONFIG_CC_COVERAGE 878KBUILD_CFLAGS += --coverage 879PLATFORM_LIBGCC += -lgcov 880endif 881 882export PLATFORM_LIBS 883export PLATFORM_LIBGCC 884 885# Special flags for CPP when processing the linker script. 886# Pass the version down so we can handle backwards compatibility 887# on the fly. 888LDPPFLAGS += \ 889 -include $(srctree)/include/u-boot/u-boot.lds.h \ 890 -DCPUDIR=$(CPUDIR) \ 891 $(shell $(LD) --version | \ 892 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 893 894######################################################################### 895######################################################################### 896 897ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 898BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 899else 900BOARD_SIZE_CHECK = 901endif 902 903ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 904SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 905else 906SPL_SIZE_CHECK = 907endif 908 909ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 910TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 911else 912TPL_SIZE_CHECK = 913endif 914 915# Statically apply RELA-style relocations (currently arm64 only) 916# This is useful for arm64 where static relocation needs to be performed on 917# the raw binary, but certain simulators only accept an ELF file (but don't 918# do the relocation). 919ifneq ($(CONFIG_STATIC_RELA),) 920# $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base 921quiet_cmd_static_rela = RELOC $@ 922cmd_static_rela = \ 923 start=$$($(NM) $(2) | grep __rel_dyn_start | cut -f 1 -d ' '); \ 924 end=$$($(NM) $(2) | grep __rel_dyn_end | cut -f 1 -d ' '); \ 925 tools/relocate-rela $(3) $(4) $$start $$end 926else 927quiet_cmd_static_rela = 928cmd_static_rela = 929endif 930 931# Always append INPUTS so that arch config.mk's can add custom ones 932INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 933 934INPUTS-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin 935ifeq ($(CONFIG_SPL_FSL_PBL),y) 936INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 937else 938ifneq ($(CONFIG_NXP_ESBC), y) 939# For Secure Boot The Image needs to be signed and Header must also 940# be included. So The image has to be built explicitly 941INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 942endif 943endif 944INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 945ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 946INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 947else 948ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 949INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 950else 951INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 952endif 953endif 954INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 955INPUTS-$(CONFIG_OF_SEPARATE) += u-boot.dtb 956INPUTS-$(CONFIG_BINMAN_STANDALONE_FDT) += u-boot.dtb 957ifeq ($(CONFIG_SPL_FRAMEWORK),y) 958INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 959endif 960INPUTS-$(CONFIG_OF_HOSTFILE) += u-boot.dtb 961ifneq ($(CONFIG_SPL_TARGET),) 962INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 963endif 964INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 965INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 966INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 967 968# Generate this input file for binman 969ifeq ($(CONFIG_SPL),) 970INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 971endif 972 973# Add optional build target if defined in board/cpu/soc headers 974ifneq ($(CONFIG_BUILD_TARGET),) 975INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 976endif 977 978ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 979INPUTS-y += init_sp_bss_offset_check 980endif 981 982ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 983INPUTS-y += u-boot-with-dtb.bin 984endif 985 986ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 987# On ARM64 this target is produced by binman so we don't need this dep 988ifeq ($(CONFIG_ARM64),y) 989ifeq ($(CONFIG_SPL),y) 990# TODO: Get binman to generate this too 991INPUTS-y += u-boot-rockchip.bin 992endif 993else 994ifeq ($(CONFIG_SPL),y) 995# Generate these inputs for binman which will create the output files 996INPUTS-y += idbloader.img u-boot.img 997endif 998endif 999endif 1000
1001INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 1002 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1003 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 1004 1005LDFLAGS_u-boot += $(LDFLAGS_FINAL) 1006 1007# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 1008LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1009 1010LDFLAGS_u-boot += --build-id=none 1011 1012ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1013LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE) 1014endif 1015 1016# insure the checker run with the right endianness 1017CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1018 1019# the checker needs the correct machine size 1020CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1021 1022# Normally we fill empty space with 0xff 1023quiet_cmd_objcopy = OBJCOPY $@ 1024cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1025 $(OBJCOPYFLAGS_$(@F)) $< $@ 1026 1027# Provide a version which does not do this, for use by EFI 1028quiet_cmd_zobjcopy = OBJCOPY $@ 1029cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1030 1031quiet_cmd_efipayload = OBJCOPY $@ 1032cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1033 1034MKIMAGEOUTPUT ?= /dev/null 1035 1036quiet_cmd_mkimage = MKIMAGE $@ 1037cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1038 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1039 1040quiet_cmd_mkfitimage = MKIMAGE $@ 1041cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1042 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1043 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1044 1045quiet_cmd_cat = CAT $@ 1046cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1047 1048append = cat $(filter-out $< $(PHONY), $^) >> $@ 1049 1050quiet_cmd_pad_cat = CAT $@ 1051cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1052 1053quiet_cmd_lzma = LZMA $@ 1054cmd_lzma = lzma -c -z -k -9 $< > $@ 1055 1056cfg: u-boot.cfg 1057 1058quiet_cmd_cfgcheck = CFGCHK $2 1059cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \ 1060 $(srctree)/scripts/config_whitelist.txt $(srctree) 1061 1062# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1063got = $(foreach cfg,$(1),$($(cfg))) 1064 1065# expected value 'y for each one 1066expect = $(foreach cfg,$(1),y) 1067 1068# Show a deprecation message 1069# Args: 1070# 1: List of CONFIG_DM_... to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1071# 2: Name of component (e.g . "Ethernet drivers") 1072# 3: Release deadline (e.g. "v202.07") 1073# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1074# Note: Script avoids bash construct, hence the strange double 'if' 1075# (patches welcome!) 1076define deprecated 1077 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1078 echo >&2 "===================== WARNING ======================"; \ 1079 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1080 echo >&2 "for $(2)). Please update the board to use"; \ 1081 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1082 echo >&2 "update by the deadline may result in board removal."; \ 1083 echo >&2 "See doc/driver-model/migration.rst for more info."; \ 1084 echo >&2 "===================================================="; \ 1085 fi; fi 1086 1087endef 1088 1089PHONY += inputs 1090inputs: $(INPUTS-y) 1091 1092all: .binman_stamp inputs 1093ifeq ($(CONFIG_BINMAN),y) 1094 $(call if_changed,binman) 1095endif 1096 1097# Timestamp file to make sure that binman always runs 1098.binman_stamp: FORCE 1099 @touch $@ 1100 1101ifeq ($(CONFIG_DEPRECATED),y) 1102 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1103endif 1104ifeq ($(CONFIG_OF_EMBED),y) 1105 @echo >&2 "===================== WARNING ======================" 1106 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1107 @echo >&2 "be used for debugging purposes. Please use" 1108 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1109 @echo >&2 "See doc/README.fdt-control for more info." 1110 @echo >&2 "====================================================" 1111endif 1112ifneq ($(CONFIG_SPL_FIT_GENERATOR),) 1113 @echo >&2 "===================== WARNING ======================" 1114 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate" 1115 @echo >&2 "to binman instead, to avoid the proliferation of" 1116 @echo >&2 "arch-specific scripts with no tests." 1117 @echo >&2 "====================================================" 1118endif 1119ifneq ($(CONFIG_DM),y) 1120 @echo >&2 "===================== WARNING ======================" 1121 @echo >&2 "This board does not use CONFIG_DM. CONFIG_DM will be" 1122 @echo >&2 "compulsory starting with the v2020.01 release." 1123 @echo >&2 "Failure to update may result in board removal." 1124 @echo >&2 "See doc/driver-model/migration.rst for more info." 1125 @echo >&2 "====================================================" 1126endif 1127 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1128 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1129 $(call deprecated,CONFIG_DM_ETH,Ethernet drivers,v2020.07,$(CONFIG_NET)) 1130 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1131 @# Check that this build does not use CONFIG options that we do not 1132 @# know about unless they are in Kconfig. All the existing CONFIG 1133 @# options are whitelisted, so new ones should not be added. 1134 $(call cmd,cfgcheck,u-boot.cfg) 1135 1136PHONY += dtbs 1137dtbs: dts/dt.dtb 1138 @: 1139dts/dt.dtb: u-boot 1140 $(Q)$(MAKE) $(build)=dts dtbs 1141 1142quiet_cmd_copy = COPY $@ 1143 cmd_copy = cp $< $@ 1144 1145ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1146 1147ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1148FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1149else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1150FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1151else 1152FINAL_DTB_CONTAINER = fit-dtb.blob 1153endif 1154 1155fit-dtb.blob.gz: fit-dtb.blob 1156 @gzip -kf9 $< > $@ 1157 1158fit-dtb.blob.lzo: fit-dtb.blob 1159 @lzop -f9 $< > $@ 1160 1161fit-dtb.blob: dts/dt.dtb FORCE 1162 $(call if_changed,mkimage) 1163ifneq ($(SOURCE_DATE_EPOCH),) 1164 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1165 chmod 0600 fit-dtb.blob 1166endif 1167 1168MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1169 -a 0 -e 0 -E \ 1170 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1171 1172MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1173 1174ifneq ($(EXT_DTB),) 1175u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1176 $(call if_changed,cat) 1177else 1178u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1179 $(call if_changed,cat) 1180endif 1181 1182u-boot.bin: u-boot-fit-dtb.bin FORCE 1183 $(call if_changed,copy) 1184 1185u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1186 $(call if_changed,cat) 1187 1188else ifeq ($(CONFIG_OF_SEPARATE),y) 1189u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1190 $(call if_changed,cat) 1191 1192u-boot.bin: u-boot-dtb.bin FORCE 1193 $(call if_changed,copy) 1194else 1195u-boot.bin: u-boot-nodtb.bin FORCE 1196 $(call if_changed,copy) 1197endif 1198 1199# we call Makefile in arch/arm/mach-imx which 1200# has targets which are dependent on targets defined 1201# here. make could not resolve them and we must ensure 1202# that they are finished before calling imx targets 1203ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1204IMX_DEPS = u-boot-fit-dtb.bin 1205endif 1206 1207%.imx: $(IMX_DEPS) %.bin 1208 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1209 $(BOARD_SIZE_CHECK) 1210 1211%.vyb: %.imx 1212 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1213 1214quiet_cmd_copy = COPY $@ 1215 cmd_copy = cp $< $@ 1216 1217u-boot.dtb: dts/dt.dtb 1218 $(call cmd,copy) 1219 1220OBJCOPYFLAGS_u-boot.hex := -O ihex 1221 1222OBJCOPYFLAGS_u-boot.srec := -O srec 1223 1224u-boot.hex u-boot.srec: u-boot FORCE 1225 $(call if_changed,objcopy) 1226 1227OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1228 1229u-boot-elf.srec: u-boot.elf FORCE 1230 $(call if_changed,objcopy) 1231 1232OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1233 1234spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1235 $(call if_changed,objcopy) 1236 1237%.scif: %.srec 1238 $(Q)$(MAKE) $(build)=arch/arm/mach-rmobile $@ 1239 1240OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1241 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1242 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec) 1243 1244binary_size_check: u-boot-nodtb.bin FORCE 1245 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \ 1246 map_size=$(shell cat u-boot.map | \ 1247 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \ 1248 | sed 's/0X//g' \ 1249 | bc); \ 1250 if [ "" != "$$map_size" ]; then \ 1251 if test $$map_size -ne $$file_size; then \ 1252 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1253 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1254 exit 1; \ 1255 fi \ 1256 fi 1257 1258ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1259ifneq ($(CONFIG_SYS_MALLOC_F_LEN),) 1260subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1261else 1262subtract_sys_malloc_f_len = true 1263endif 1264# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1265# so low that the DTB could probably use 90%+ of the available space, for 1266# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1267# safe for now and tweak this later if space becomes tight. 1268# A rejected alternative would be to check that some absolute minimum stack 1269# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1270# deliberately build-specific, to take account of build-to-build stack usage 1271# differences due to different feature sets, there is no common absolute value 1272# to check against. 1273init_sp_bss_offset_check: u-boot.dtb FORCE 1274 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1275 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1276 $(subtract_sys_malloc_f_len) ; \ 1277 quarter_space=$$(($${space} / 4)) ; \ 1278 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1279 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1280 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1281 exit 1 ; \ 1282 fi 1283endif 1284 1285shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1286 1287quiet_cmd_objcopy_uboot = OBJCOPY $@ 1288ifdef cmd_static_rela 1289cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_SYS_TEXT_BASE)) || { rm -f $@; false; } 1290else 1291cmd_objcopy_uboot = $(cmd_objcopy) 1292endif 1293 1294u-boot-nodtb.bin: u-boot FORCE 1295 $(call if_changed,objcopy_uboot) 1296 $(BOARD_SIZE_CHECK) 1297 1298u-boot.ldr: u-boot 1299 $(CREATE_LDR_ENV) 1300 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS) 1301 $(BOARD_SIZE_CHECK) 1302 1303# binman 1304# --------------------------------------------------------------------------- 1305# Use 'make BINMAN_DEBUG=1' to enable debugging 1306# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1307default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1308 1309# Tell binman whether we have a devicetree for SPL and TPL 1310have_spl_dt := $(if $(CONFIG_SPL_OF_PLATDATA),,$(CONFIG_SPL_OF_CONTROL)) 1311have_tpl_dt := $(if $(CONFIG_TPL_OF_PLATDATA),,$(CONFIG_TPL_OF_CONTROL)) 1312 1313quiet_cmd_binman = BINMAN $@ 1314cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1315 --toolpath $(objtree)/tools \ 1316 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1317 build -u -d u-boot.dtb -O . -m --allow-missing \ 1318 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1319 -I arch/$(ARCH)/dts -a of-list=$(CONFIG_OF_LIST) \ 1320 -a atf-bl31-path=${BL31} \ 1321 -a opensbi-path=${OPENSBI} \ 1322 -a default-dt=$(default_dt) \ 1323 -a scp-path=$(SCP) \ 1324 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1325 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1326 -a spl-dtb=$(have_spl_dt) -a tpl-dtb=$(have_tpl_dt) \ 1327 $(BINMAN_$(@F)) 1328 1329OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1330 1331OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1332 1333u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1334 $(call if_changed,objcopy) 1335 1336# 1337# U-Boot entry point, needed for booting of full-blown U-Boot 1338# from the SPL U-Boot version. 1339# 1340ifndef CONFIG_SYS_UBOOT_START 1341CONFIG_SYS_UBOOT_START := $(CONFIG_SYS_TEXT_BASE) 1342endif 1343 1344# Boards with more complex image requirements can provide an .its source file 1345# or a generator script 1346# NOTE: Please do not use this. We are migrating away from Makefile rules to use 1347# binman instead. 1348ifneq ($(CONFIG_SPL_FIT_SOURCE),"") 1349U_BOOT_ITS := u-boot.its 1350$(U_BOOT_ITS): $(subst ",,$(CONFIG_SPL_FIT_SOURCE)) 1351 $(call if_changed,copy) 1352else 1353ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),) 1354U_BOOT_ITS := u-boot.its 1355ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh") 1356U_BOOT_ITS_DEPS += u-boot-nodtb.bin 1357endif 1358ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py") 1359U_BOOT_ITS_DEPS += u-boot 1360endif 1361$(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE 1362 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \ 1363 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@ 1364endif 1365endif 1366 1367ifdef CONFIG_SPL_LOAD_FIT 1368MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1369 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1370 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1371 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1372 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1373 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1374 $(patsubst %,-b arch/$(ARCH)/dts/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1375else 1376MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1377 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1378 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1379MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1380 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1381 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1382u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1383endif 1384 1385MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1386 1387# Some boards have the kwbimage.cfg file written in advance, while some 1388# other boards generate it on the fly during the build in the build tree. 1389# Let's check if the file exists in the build tree first, otherwise we 1390# fall back to use the one in the source tree. 1391KWD_CONFIG_FILE = $(shell \ 1392 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1393 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1394 else \ 1395 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1396 fi) 1397 1398MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1399 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) 1400 1401MKIMAGEFLAGS_u-boot-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1402 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1403 $(if $(KEYDIR),-k $(KEYDIR)) 1404 1405MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1406 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage 1407 1408ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1409UBOOT_BIN := u-boot-with-dtb.bin 1410else 1411UBOOT_BIN := u-boot.bin 1412endif 1413 1414MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1415 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1416 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1417 1418u-boot.bin.lzma: u-boot.bin FORCE 1419 $(call if_changed,lzma) 1420 1421u-boot-lzma.img: u-boot.bin.lzma FORCE 1422 $(call if_changed,mkimage) 1423 1424u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1425 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin \ 1426 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE)$(CONFIG_BINMAN_STANDALONE_FDT),dts/dt.dtb) \ 1427 ,$(UBOOT_BIN)) FORCE 1428 $(call if_changed,mkimage) 1429 $(BOARD_SIZE_CHECK) 1430 1431ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1432MKIMAGEFLAGS_u-boot.itb = 1433else 1434MKIMAGEFLAGS_u-boot.itb = -E 1435endif 1436MKIMAGEFLAGS_u-boot.itb += -B 0x8 1437 1438ifdef U_BOOT_ITS 1439u-boot.itb: u-boot-nodtb.bin \ 1440 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_OF_HOSTFILE),dts/dt.dtb) \ 1441 $(U_BOOT_ITS) FORCE 1442 $(call if_changed,mkfitimage) 1443 $(BOARD_SIZE_CHECK) 1444endif 1445 1446u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1447 $(call if_changed,mkimage) 1448 1449u-boot.sha1: u-boot.bin 1450 tools/ubsha1 u-boot.bin 1451 1452u-boot.dis: u-boot 1453 $(OBJDUMP) -d $< > $@ 1454 1455ifneq ($(CONFIG_SPL_PAYLOAD),) 1456SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1457else 1458SPL_PAYLOAD := u-boot.bin 1459endif 1460 1461SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1462 1463OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1464 --pad-to=$(CONFIG_SPL_PAD_TO) 1465u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1466 $(call if_changed,pad_cat) 1467 1468ifeq ($(CONFIG_ARCH_ROCKCHIP),y) 1469 1470# TPL + SPL 1471ifeq ($(CONFIG_SPL)$(CONFIG_TPL),yy) 1472MKIMAGEFLAGS_u-boot-tpl-rockchip.bin = -n $(CONFIG_SYS_SOC) -T rksd 1473tpl/u-boot-tpl-rockchip.bin: tpl/u-boot-tpl.bin FORCE 1474 $(call if_changed,mkimage) 1475idbloader.img: tpl/u-boot-tpl-rockchip.bin spl/u-boot-spl.bin FORCE 1476 $(call if_changed,cat) 1477else 1478MKIMAGEFLAGS_idbloader.img = -n $(CONFIG_SYS_SOC) -T rksd 1479idbloader.img: spl/u-boot-spl.bin FORCE 1480 $(call if_changed,mkimage) 1481endif 1482 1483ifeq ($(CONFIG_ARM64),y) 1484OBJCOPYFLAGS_u-boot-rockchip.bin = -I binary -O binary \ 1485 --pad-to=$(CONFIG_SPL_PAD_TO) --gap-fill=0xff 1486u-boot-rockchip.bin: idbloader.img u-boot.itb FORCE 1487 $(call if_changed,pad_cat) 1488endif # CONFIG_ARM64 1489 1490endif # CONFIG_ARCH_ROCKCHIP 1491 1492ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1493MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1494 1495lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1496 $(call if_changed,mkimage) 1497 1498OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1499 1500lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1501 $(call if_changed,objcopy) 1502 1503OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1504 1505lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1506 $(call if_changed,objcopy) 1507 1508lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1509 $(call if_changed,cat) 1510 1511endif 1512 1513OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1514 --pad-to=$(CONFIG_TPL_PAD_TO) 1515tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1516 $(call if_changed,pad_cat) 1517 1518SPL: spl/u-boot-spl.bin FORCE 1519 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1520 1521ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1522ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1523u-boot.cnt: u-boot.bin FORCE 1524 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1525 1526flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1527 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1528else 1529ifeq ($(CONFIG_BINMAN),y) 1530flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1531 $(call if_changed,binman) 1532 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1533else 1534flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1535 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1536endif 1537endif 1538endif 1539 1540u-boot.uim: u-boot.bin FORCE 1541 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1542 1543u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1544 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1545 1546MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE) 1547 1548u-boot.ubl: u-boot-with-spl.bin FORCE 1549 $(call if_changed,mkimage) 1550 1551MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \ 1552 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \ 1553 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1554spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1555 $(call if_changed,mkimage) 1556 1557OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1558u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1559 $(call if_changed,pad_cat) 1560 1561u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1562 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1563u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1564 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1565 1566MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1567 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1568spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1569 $(call if_changed,mkimage) 1570 1571ifneq ($(CONFIG_ARCH_SOCFPGA),) 1572quiet_cmd_gensplx4 = GENSPLX4 $@ 1573cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1574 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1575 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1576 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1577 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1578spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1579 $(call if_changed,gensplx4) 1580 1581quiet_cmd_socboot = SOCBOOT $@ 1582cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1583u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1584 $(call if_changed,socboot) 1585 1586quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1587cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1588 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1589 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1590 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1591 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1592 { rm -f $@ spl/u-boot-spl.pad; false; } 1593u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1594 $(call if_changed,gensplpadx4) 1595 1596quiet_cmd_socnandboot = SOCNANDBOOT $@ 1597cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1598u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1599 $(call if_changed,socnandboot) 1600 1601endif 1602 1603ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1604u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \ 1605 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE 1606 $(call if_changed,binman) 1607 1608ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y) 1609OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1610u-boot-br.bin: u-boot FORCE 1611 $(call if_changed,objcopy) 1612endif 1613endif 1614 1615quiet_cmd_ldr = LD $@ 1616cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1617 $(filter-out FORCE,$^) -o $@ 1618 1619ifdef CONFIG_X86 1620OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1621u-boot-x86-start16.bin: u-boot FORCE 1622 $(call if_changed,objcopy) 1623 1624OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1625u-boot-x86-reset16.bin: u-boot FORCE 1626 $(call if_changed,objcopy) 1627 1628endif # CONFIG_X86 1629 1630OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1631u-boot-app.efi: u-boot FORCE 1632 $(call if_changed,zobjcopy) 1633 1634u-boot.bin.o: u-boot.bin FORCE 1635 $(call if_changed,efipayload) 1636 1637u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1638 $(call if_changed_dep,cpp_lds) 1639 1640# Rule to link the EFI payload which contains a stub and a U-Boot binary 1641quiet_cmd_u-boot_payload ?= LD $@ 1642 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1643 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1644 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1645 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1646 1647u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1648 $(call if_changed,u-boot_payload) 1649 1650OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1651u-boot-payload.efi: u-boot-payload FORCE 1652 $(call if_changed,zobjcopy) 1653 1654u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1655 $(call if_changed,cat) 1656 1657#Add a target to create boot binary having SPL binary in PBI format 1658#concatenated with u-boot binary. It is need by PowerPC SoC having 1659#internal SRAM <= 512KB. 1660MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1661 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1662 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1663 1664spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1665 $(call if_changed,mkimage) 1666 1667ifeq ($(ARCH),arm) 1668UBOOT_BINLOAD := u-boot.img 1669else 1670ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy) 1671UBOOT_BINLOAD := u-boot-with-dtb.bin 1672else 1673UBOOT_BINLOAD := u-boot.bin 1674endif 1675endif 1676 1677OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1678 --gap-fill=0xff 1679 1680u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1681 $(call if_changed,pad_cat) 1682 1683# PPC4xx needs the SPL at the end of the image, since the reset vector 1684# is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target 1685# and need to introduce a new build target with the full blown U-Boot 1686# at the start padded up to the start of the SPL image. And then concat 1687# the SPL image to the end. 1688 1689OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \ 1690 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff 1691u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE 1692 $(call if_changed,pad_cat) 1693 1694quiet_cmd_u-boot-elf ?= LD $@ 1695 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1696 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \ 1697 -Ttext=$(CONFIG_SYS_TEXT_BASE) 1698u-boot.elf: u-boot.bin u-boot-elf.lds 1699 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1700 $(call if_changed,u-boot-elf) 1701 1702u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1703 $(call if_changed_dep,cpp_lds) 1704 1705# MediaTek's ARM-based u-boot needs a header to contains its load address 1706# which is parsed by the BootROM. 1707# If the SPL build is enabled, the header will be added to the spl binary, 1708# and the spl binary and the u-boot.img will be combined into one file. 1709# Otherwise the header will be added to the u-boot.bin directly. 1710 1711ifeq ($(CONFIG_SPL),y) 1712spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1713 1714u-boot-mtk.bin: u-boot-with-spl.bin 1715 $(call if_changed,copy) 1716else 1717MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1718 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \ 1719 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1720 1721u-boot-mtk.bin: u-boot.bin FORCE 1722 $(call if_changed,mkimage) 1723endif 1724 1725quiet_cmd_endian_swap = SWAP $@ 1726 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1727 1728u-boot-swap.bin: u-boot.bin FORCE 1729 $(call if_changed,endian_swap) 1730 1731ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1732 1733# Generate linker list symbols references to force compiler to not optimize 1734# them away when compiling with LTO 1735ifdef CONFIG_LTO 1736u-boot-keep-syms-lto := keep-syms-lto.o 1737u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1738 1739quiet_cmd_keep_syms_lto = KSL $@ 1740 cmd_keep_syms_lto = \ 1741 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1742 1743quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1744 cmd_keep_syms_lto_cc = \ 1745 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1746 1747$(u-boot-keep-syms-lto_c): $(u-boot-main) 1748 $(call if_changed,keep_syms_lto) 1749$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1750 $(call if_changed,keep_syms_lto_cc) 1751else 1752u-boot-keep-syms-lto := 1753endif 1754 1755# Rule to link u-boot 1756# May be overridden by arch/$(ARCH)/config.mk 1757ifdef CONFIG_LTO 1758quiet_cmd_u-boot__ ?= LTO $@ 1759 cmd_u-boot__ ?= \ 1760 $(CC) -nostdlib -nostartfiles \ 1761 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1762 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1763 -T u-boot.lds $(u-boot-init) \ 1764 -Wl,--whole-archive \ 1765 $(u-boot-main) \ 1766 $(u-boot-keep-syms-lto) \ 1767 $(PLATFORM_LIBS) \ 1768 -Wl,--no-whole-archive \ 1769 -Wl,-Map,u-boot.map; \ 1770 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1771else 1772quiet_cmd_u-boot__ ?= LD $@ 1773 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1774 -T u-boot.lds $(u-boot-init) \ 1775 --whole-archive \ 1776 $(u-boot-main) \ 1777 --no-whole-archive \ 1778 $(PLATFORM_LIBS) -Map u-boot.map; \ 1779 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1780endif 1781 1782quiet_cmd_smap = GEN common/system_map.o 1783cmd_smap = \ 1784 smap=`$(call SYSTEM_MAP,u-boot) | \ 1785 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1786 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1787 -c $(srctree)/common/system_map.c -o common/system_map.o 1788 1789u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1790 +$(call if_changed,u-boot__) 1791ifeq ($(CONFIG_KALLSYMS),y) 1792 $(call cmd,smap) 1793 $(call cmd,u-boot__) common/system_map.o 1794endif 1795 1796ifeq ($(CONFIG_RISCV),y) 1797 @tools/prelink-riscv $@ 0 1798endif 1799 1800quiet_cmd_sym ?= SYM $@ 1801 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1802u-boot.sym: u-boot FORCE 1803 $(call if_changed,sym) 1804 1805# The actual objects are generated when descending, 1806# make sure no implicit rule kicks in 1807$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1808 1809# Handle descending into subdirectories listed in $(u-boot-dirs) 1810# Preset locale variables to speed up the build process. Limit locale 1811# tweaks to this spot to avoid wrong language settings when running 1812# make menuconfig etc. 1813# Error messages still appears in the original language 1814 1815PHONY += $(u-boot-dirs) 1816$(u-boot-dirs): prepare scripts 1817 $(Q)$(MAKE) $(build)=$@ 1818 1819tools: prepare 1820# The "tools" are needed early 1821$(filter-out tools, $(u-boot-dirs)): tools 1822# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1823# is "yes"), so compile examples after U-Boot is compiled. 1824examples: $(filter-out examples, $(u-boot-dirs)) 1825 1826define filechk_uboot.release 1827 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1828endef 1829 1830# Store (new) UBOOTRELEASE string in include/config/uboot.release 1831include/config/uboot.release: include/config/auto.conf FORCE 1832 $(call filechk,uboot.release) 1833 1834 1835# Things we need to do before we recursively start building the kernel 1836# or the modules are listed in "prepare". 1837# A multi level approach is used. prepareN is processed before prepareN-1. 1838# archprepare is used in arch Makefiles and when processed asm symlink, 1839# version.h and scripts_basic is processed / created. 1840 1841# Listed in dependency order 1842PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1843 1844# prepare3 is used to check if we are building in a separate output directory, 1845# and if so do: 1846# 1) Check that make has not been executed in the kernel src $(srctree) 1847prepare3: include/config/uboot.release 1848ifneq ($(KBUILD_SRC),) 1849 @$(kecho) ' Using $(srctree) as source for U-Boot' 1850 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1851 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1852 echo >&2 " in the '$(srctree)' directory.";\ 1853 /bin/false; \ 1854 fi; 1855endif 1856 1857# prepare2 creates a makefile if using a separate output directory 1858prepare2: prepare3 outputmakefile cfg 1859 1860prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) \ 1861 include/config/auto.conf 1862ifeq ($(wildcard $(LDSCRIPT)),) 1863 @echo >&2 " Could not find linker script." 1864 @/bin/false 1865endif 1866 1867ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1868prepare1: $(defaultenv_h) 1869 1870envtools: $(defaultenv_h) 1871endif 1872 1873archprepare: prepare1 scripts_basic 1874 1875prepare0: archprepare FORCE 1876 $(Q)$(MAKE) $(build)=. 1877 1878# All the preparing.. 1879prepare: prepare0 1880 1881# Generate some files 1882# --------------------------------------------------------------------------- 1883 1884# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1885define filechk_version.h 1886 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1887 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1888 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1889 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1890 sed -e "s/^0*//"); \ 1891 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1892 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1893endef 1894 1895# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 1896# The BSD date on the other hand behaves different and would produce errors 1897# with the misused '-d' switch. Respect that and search a working date with 1898# well known pre- and suffixes for the GNU variant of date. 1899define filechk_timestamp.h 1900 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 1901 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 1902 DATE=""; \ 1903 for date in gdate date.gnu date; do \ 1904 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 1905 done; \ 1906 if test -n "$${DATE}"; then \ 1907 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1908 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 1909 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 1910 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1911 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 1912 else \ 1913 return 42; \ 1914 fi; \ 1915 else \ 1916 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 1917 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 1918 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 1919 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \ 1920 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 1921 fi) 1922endef 1923 1924define filechk_defaultenv.h 1925 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ 1926 tr '\n' '\0' | \ 1927 sed -e 's/\\\x0\s*//g' | \ 1928 xxd -i ; ) 1929endef 1930 1931define filechk_dt.h 1932 (if test -n "$${DEVICE_TREE}"; then \ 1933 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 1934 else \ 1935 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 1936 fi) 1937endef 1938 1939$(version_h): include/config/uboot.release FORCE 1940 $(call filechk,version.h) 1941 1942$(timestamp_h): $(srctree)/Makefile FORCE 1943 $(call filechk,timestamp.h) 1944 1945$(dt_h): $(srctree)/Makefile FORCE 1946 $(call filechk,dt.h) 1947 1948$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 1949 $(call filechk,defaultenv.h) 1950 1951# --------------------------------------------------------------------------- 1952# Devicetree files 1953 1954ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 1955dtstree := arch/$(SRCARCH)/boot/dts 1956endif 1957 1958ifneq ($(dtstree),) 1959 1960%.dtb: prepare3 scripts_dtc 1961 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 1962 1963PHONY += dtbs dtbs_install 1964dtbs: prepare3 scripts_dtc 1965 $(Q)$(MAKE) $(build)=$(dtstree) 1966 1967dtbs_install: 1968 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 1969 1970ifdef CONFIG_OF_EARLY_FLATTREE 1971all: dtbs 1972endif 1973 1974endif 1975 1976PHONY += scripts_dtc 1977scripts_dtc: scripts_basic 1978 $(Q)$(MAKE) $(build)=scripts/dtc 1979 1980# --------------------------------------------------------------------------- 1981quiet_cmd_cpp_lds = LDS $@ 1982cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 1983 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 1984 1985u-boot.lds: $(LDSCRIPT) prepare FORCE 1986 $(call if_changed_dep,cpp_lds) 1987 1988spl/u-boot-spl.bin: spl/u-boot-spl 1989 @: 1990 $(SPL_SIZE_CHECK) 1991 1992spl/u-boot-spl-dtb.bin: spl/u-boot-spl 1993 @: 1994 1995spl/u-boot-spl-dtb.hex: spl/u-boot-spl 1996 @: 1997 1998spl/u-boot-spl: tools prepare \ 1999 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \ 2000 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
2001 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all 2002 2003spl/sunxi-spl.bin: spl/u-boot-spl 2004 @: 2005 2006spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2007 @: 2008 2009spl/u-boot-spl.sfp: spl/u-boot-spl 2010 @: 2011 2012spl/boot.bin: spl/u-boot-spl 2013 @: 2014 2015tpl/u-boot-tpl.bin: tools prepare \ 2016 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) 2017 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all 2018 $(TPL_SIZE_CHECK) 2019 2020TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2021 2022FIND := find 2023FINDFLAGS := -L 2024 2025tags ctags: 2026 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2027 -name '*.[chS]' -print` 2028 ln -s ctags tags 2029 2030etags: 2031 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2032 -name '*.[chS]' -print` 2033cscope: 2034 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2035 cscope.files 2036 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2037 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2038 mv cscope.files.no-symlinks cscope.files 2039 cscope -b -q -k 2040 2041SYSTEM_MAP = \ 2042 $(NM) $1 | \ 2043 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2044 LC_ALL=C sort 2045System.map: u-boot 2046 @$(call SYSTEM_MAP,$<) > $@ 2047 2048######################################################################### 2049 2050# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2051# R_AARCH64_RELATIVE (64-bit). 2052checkarmreloc: u-boot 2053 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \ 2054 grep R_A | sort -u`"; \ 2055 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2056 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2057 echo "$< contains unexpected relocations: $$RELOC"; \ 2058 false; \ 2059 fi 2060 2061tools/version.h: include/version.h 2062 $(Q)mkdir -p $(dir $@) 2063 $(call if_changed,copy) 2064 2065envtools: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2066 $(Q)$(MAKE) $(build)=tools/env 2067 2068tools-only: export TOOLS_ONLY=y 2069tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2070 $(Q)$(MAKE) $(build)=tools 2071 2072tools-all: export HOST_TOOLS_ALL=y 2073tools-all: envtools tools ; 2074 2075cross_tools: export CROSS_BUILD_TOOLS=y 2076cross_tools: tools ; 2077 2078.PHONY : CHANGELOG 2079CHANGELOG: 2080 git log --no-merges U-Boot-1_1_5.. | \ 2081 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2082 2083######################################################################### 2084 2085### 2086# Cleaning is done on three levels. 2087# make clean Delete most generated files 2088# Leave enough to build external modules 2089# make mrproper Delete the current configuration, and all generated files 2090# make distclean Remove editor backup files, patch leftover files and the like 2091 2092# Directories & files removed with 'make clean' 2093CLEAN_DIRS += $(MODVERDIR) \ 2094 $(foreach d, spl tpl, $(patsubst %,$d/%, \ 2095 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2096 2097CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h tools/version.h \ 2098 boot* u-boot* MLO* SPL System.map fit-dtb.blob* \ 2099 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2100 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2101 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c 2102 2103# Directories & files removed with 'make mrproper' 2104MRPROPER_DIRS += include/config include/generated spl tpl \ 2105 .tmp_objdiff doc/output include/asm 2106 2107# Remove include/asm symlink created by U-Boot before v2014.01 2108MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2109 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2110 drivers/video/fonts/*.S include/asm 2111 2112# clean - Delete most, but leave enough to build external modules 2113# 2114clean: rm-dirs := $(CLEAN_DIRS) 2115clean: rm-files := $(CLEAN_FILES) 2116 2117clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2118 2119clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2120 2121PHONY += $(clean-dirs) clean archclean 2122$(clean-dirs): 2123 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2124 2125clean: $(clean-dirs) 2126 $(call cmd,rmdirs) 2127 $(call cmd,rmfiles) 2128 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2129 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2130 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2131 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2132 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2133 -o -name '*.asn1.[ch]' \ 2134 -o -name '*.symtypes' -o -name 'modules.order' \ 2135 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2136 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \ 2137 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2138 -type f -print | xargs rm -f 2139 2140# mrproper - Delete all generated files, including .config 2141# 2142mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2143mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2144mrproper-dirs := $(addprefix _mrproper_,scripts) 2145 2146PHONY += $(mrproper-dirs) mrproper archmrproper 2147$(mrproper-dirs): 2148 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2149 2150mrproper: clean $(mrproper-dirs) 2151 $(call cmd,rmdirs) 2152 $(call cmd,rmfiles) 2153 @rm -f arch/*/include/asm/arch 2154 2155# distclean 2156# 2157PHONY += distclean 2158 2159distclean: mrproper 2160 @find $(srctree) $(RCS_FIND_IGNORE) \ 2161 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2162 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2163 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2164 -o -name '*.pyc' \) \ 2165 -type f -print | xargs rm -f 2166 @rm -f boards.cfg CHANGELOG 2167 2168backup: 2169 F=`basename $(srctree)` ; cd .. ; \ 2170 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2171 2172help: 2173 @echo 'Cleaning targets:' 2174 @echo ' clean - Remove most generated files but keep the config' 2175 @echo ' mrproper - Remove all generated files + config + various backup files' 2176 @echo ' distclean - mrproper + remove editor backup and patch files' 2177 @echo '' 2178 @echo 'Configuration targets:' 2179 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2180 @echo '' 2181 @echo 'Test targets:' 2182 @echo '' 2183 @echo ' check - Run all automated tests that use sandbox' 2184 @echo ' qcheck - Run quick automated tests that use sandbox' 2185 @echo ' tcheck - Run quick automated tests on tools' 2186 @echo '' 2187 @echo 'Other generic targets:' 2188 @echo ' all - Build all necessary images depending on configuration' 2189 @echo ' tests - Build U-Boot for sandbox and run tests' 2190 @echo '* u-boot - Build the bare u-boot' 2191 @echo ' dir/ - Build all files in dir and below' 2192 @echo ' dir/file.[oisS] - Build specified target only' 2193 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2194 @echo ' (requires a recent binutils and recent build (System.map))' 2195 @echo ' tags/ctags - Generate ctags file for editors' 2196 @echo ' etags - Generate etags file for editors' 2197 @echo ' cscope - Generate cscope index' 2198 @echo ' ubootrelease - Output the release version string (use with make -s)' 2199 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2200 @echo " cfg - Don't build, just create the .cfg files" 2201 @echo " envtools - Build only the target-side environment tools" 2202 @echo '' 2203 @echo 'Static analysers' 2204 @echo ' checkstack - Generate a list of stack hogs' 2205 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2206 @echo '' 2207 @echo 'Documentation targets:' 2208 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2209 @echo '' 2210 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2211 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2212 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2213 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2214 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2215 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2216 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2217 @echo ' 1: warnings which may be relevant and do not occur too often' 2218 @echo ' 2: warnings which occur quite often but may still be relevant' 2219 @echo ' 3: more obscure warnings, can most likely be ignored' 2220 @echo ' Multiple levels can be combined with W=12 or W=123' 2221 @echo '' 2222 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2223 @echo 'For further info see the ./README file' 2224 2225tests check: 2226 $(srctree)/test/run 2227 2228qcheck: 2229 $(srctree)/test/run quick 2230 2231tcheck: 2232 $(srctree)/test/run tools 2233 2234# Documentation targets 2235# --------------------------------------------------------------------------- 2236DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2237 linkcheckdocs dochelp refcheckdocs 2238PHONY += $(DOC_TARGETS) 2239$(DOC_TARGETS): scripts_basic FORCE 2240 $(Q)$(MAKE) $(build)=doc $@ 2241 2242PHONY += checkstack ubootrelease ubootversion 2243 2244checkstack: 2245 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2246 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2247 2248ubootrelease: 2249 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 2250 2251ubootversion: 2252 @echo $(UBOOTVERSION) 2253 2254# Single targets 2255# --------------------------------------------------------------------------- 2256# Single targets are compatible with: 2257# - build with mixed source and output 2258# - build with separate output dir 'make O=...' 2259# - external modules 2260# 2261# target-dir => where to store outputfile 2262# build-dir => directory in kernel source tree to use 2263 2264ifeq ($(KBUILD_EXTMOD),) 2265 build-dir = $(patsubst %/,%,$(dir $@)) 2266 target-dir = $(dir $@) 2267else 2268 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2269 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2270 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2271endif 2272 2273%.s: %.c prepare scripts FORCE 2274 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2275%.i: %.c prepare scripts FORCE 2276 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2277%.o: %.c prepare scripts FORCE 2278 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2279%.lst: %.c prepare scripts FORCE 2280 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2281%.s: %.S prepare scripts FORCE 2282 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2283%.o: %.S prepare scripts FORCE 2284 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2285%.symtypes: %.c prepare scripts FORCE 2286 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2287 2288# Modules 2289/: prepare scripts FORCE 2290 $(cmd_crmodverdir) 2291 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2292 $(build)=$(build-dir) 2293%/: prepare scripts FORCE 2294 $(cmd_crmodverdir) 2295 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2296 $(build)=$(build-dir) 2297%.ko: prepare scripts FORCE 2298 $(cmd_crmodverdir) 2299 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2300 $(build)=$(build-dir) $(@:.ko=.o) 2301 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2302 2303quiet_cmd_genenv = GENENV $@ 2304cmd_genenv = $(OBJCOPY) --dump-section .rodata.default_environment=$@ env/common.o; \ 2305 sed --in-place -e 's/\x00/\x0A/g' $@ 2306 2307u-boot-initial-env: u-boot.bin 2308 $(call if_changed,genenv) 2309 2310# Consistency checks 2311# --------------------------------------------------------------------------- 2312 2313PHONY += coccicheck 2314 2315coccicheck: 2316 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2317 2318# FIXME Should go into a make.lib or something 2319# =========================================================================== 2320 2321quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2322 cmd_rmdirs = rm -rf $(rm-dirs) 2323 2324quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2325 cmd_rmfiles = rm -f $(rm-files) 2326 2327# read all saved command lines 2328 2329cmd_files := $(wildcard .*.cmd) 2330 2331ifneq ($(cmd_files),) 2332 $(cmd_files): ; # Do not try to update included dependency files 2333 include $(cmd_files) 2334endif 2335 2336endif #ifeq ($(config-targets),1) 2337endif #ifeq ($(mixed-targets),1) 2338endif # skip-makefile 2339 2340PHONY += FORCE 2341FORCE: 2342 2343# Declare the contents of the PHONY variable as phony. We keep that 2344# information in a variable so we can use it in if_changed and friends. 2345.PHONY: $(PHONY) 2346