1# SPDX-License-Identifier: GPL-2.0+ 2 3VERSION = 2025 4PATCHLEVEL = 07 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/^\(.*ccache\)\{0,1\}[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\3/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 $(MK_ARCH), "arm" "armv5tel" "armv6l" "armv7" "armv7a" "armv7l")) 34 export HOST_ARCH=$(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 409READELF = $(CROSS_COMPILE)readelf 410LEX = flex 411YACC = bison 412AWK = awk 413PERL = perl 414PYTHON ?= python 415PYTHON2 = python2 416PYTHON3 ?= python3 417 418# The devicetree compiler and pylibfdt are automatically built unless DTC is 419# provided. If DTC is provided, it is assumed the pylibfdt is available too. 420DTC_INTREE := $(objtree)/scripts/dtc/dtc 421DTC ?= $(DTC_INTREE) 422DTC_MIN_VERSION := 010406 423 424CHECK = sparse 425 426CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 427 -Wbitwise -Wno-return-void -Wno-unknown-attribute \ 428 -D__CHECK_ENDIAN__ $(CF) 429 430KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__ 431 432KBUILD_CFLAGS := -Wall -Wstrict-prototypes \ 433 -Wno-format-security \ 434 -fno-builtin -ffreestanding $(CSTD_FLAG) 435KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing 436KBUILD_AFLAGS := -D__ASSEMBLY__ 437KBUILD_LDFLAGS := 438 439ifeq ($(cc-name),clang) 440ifneq ($(CROSS_COMPILE),) 441CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) 442LDPPFLAGS += $(CLANG_TARGET) 443GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD))) 444CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR) 445GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..) 446endif 447ifneq ($(GCC_TOOLCHAIN),) 448CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) 449endif 450KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 451KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) 452KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) 453KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) 454endif 455 456# Don't generate position independent code 457KBUILD_CFLAGS += $(call cc-option,-fno-PIE) 458KBUILD_AFLAGS += $(call cc-option,-fno-PIE) 459 460# Read UBOOTRELEASE from include/config/uboot.release (if it exists) 461UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null) 462UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 463 464export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION 465export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR 466export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC 467export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS 468export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3 469export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS 470 471export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS 472export KBUILD_CFLAGS KBUILD_AFLAGS 473 474export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1) 475 476# When compiling out-of-tree modules, put MODVERDIR in the module 477# tree rather than in the kernel tree. The kernel tree might 478# even be read-only. 479export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 480 481# Files to ignore in find ... statements 482 483export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 484 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 485 -prune -o 486export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 487 --exclude CVS --exclude .pc --exclude .hg --exclude .git 488 489export PYTHON_ENABLE 490 491# This is y if U-Boot should not build any Python tools or libraries. Typically 492# you would need to set this if those tools/libraries (typically binman and 493# pylibfdt) cannot be built by your environment and are provided separately. 494ifeq ($(NO_PYTHON),) 495PYTHON_ENABLE=y 496endif 497 498# =========================================================================== 499# Rules shared between *config targets and build targets 500 501# Basic helpers built in scripts/ 502PHONY += scripts_basic 503scripts_basic: 504 $(Q)$(MAKE) $(build)=scripts/basic 505 $(Q)rm -f .tmp_quiet_recordmcount 506 507# To avoid any implicit rule to kick in, define an empty command. 508scripts/basic/%: scripts_basic ; 509 510PHONY += outputmakefile 511# outputmakefile generates a Makefile in the output directory, if using a 512# separate output directory. This allows convenient use of make in the 513# output directory. 514outputmakefile: 515ifneq ($(KBUILD_SRC),) 516 $(Q)ln -fsn $(srctree) source 517 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree) 518endif 519 520# To make sure we do not include .config for any of the *config targets 521# catch them early, and hand them over to scripts/kconfig/Makefile 522# It is allowed to specify more targets when calling make, including 523# mixing *config targets and build targets. 524# For example 'make oldconfig all'. 525# Detect when mixed targets is specified, and make a second invocation 526# of make so .config is not included in this case either (for *config). 527 528version_h := include/generated/version_autogenerated.h 529timestamp_h := include/generated/timestamp_autogenerated.h 530defaultenv_h := include/generated/defaultenv_autogenerated.h 531dt_h := include/generated/dt.h 532env_h := include/generated/environment.h 533 534no-dot-config-targets := clean clobber mrproper distclean \ 535 help %docs check% coccicheck \ 536 ubootversion backup tests check pcheck qcheck tcheck \ 537 pylint pylint_err _pip pip pip_test pip_release 538 539config-targets := 0 540mixed-targets := 0 541dot-config := 1 542 543ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 544 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 545 dot-config := 0 546 endif 547endif 548 549ifeq ($(KBUILD_EXTMOD),) 550 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 551 config-targets := 1 552 ifneq ($(words $(MAKECMDGOALS)),1) 553 mixed-targets := 1 554 endif 555 endif 556endif 557 558ifeq ($(mixed-targets),1) 559# =========================================================================== 560# We're called with mixed targets (*config and build targets). 561# Handle them one by one. 562 563PHONY += $(MAKECMDGOALS) __build_one_by_one 564 565$(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 566 @: 567 568__build_one_by_one: 569 $(Q)set -e; \ 570 for i in $(MAKECMDGOALS); do \ 571 $(MAKE) -f $(srctree)/Makefile $$i; \ 572 done 573 574else 575ifeq ($(config-targets),1) 576# =========================================================================== 577# *config targets only - make sure prerequisites are updated, and descend 578# in scripts/kconfig to make the *config target 579 580KBUILD_DEFCONFIG := sandbox_defconfig 581export KBUILD_DEFCONFIG KBUILD_KCONFIG 582 583config: scripts_basic outputmakefile FORCE 584 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 585 586%config: scripts_basic outputmakefile FORCE 587 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 588 589else 590# =========================================================================== 591# Build targets only - this includes vmlinux, arch specific targets, clean 592# targets and others. In general all targets except *config targets. 593 594# Additional helpers built in scripts/ 595# Carefully list dependencies so we do not try to build scripts twice 596# in parallel 597PHONY += scripts 598scripts: scripts_basic scripts_dtc include/config/auto.conf 599 $(Q)$(MAKE) $(build)=$(@) 600 601ifeq ($(dot-config),1) 602# Read in config 603-include include/config/auto.conf 604 605# Read in dependencies to all Kconfig* files, make sure to run 606# oldconfig if changes are detected. 607-include include/config/auto.conf.cmd 608 609# To avoid any implicit rule to kick in, define an empty command 610$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 611 612# If .config is newer than include/config/auto.conf, someone tinkered 613# with it and forgot to run make oldconfig. 614# if auto.conf.cmd is missing then we are probably in a cleaned tree so 615# we execute the config step to be sure to catch updated Kconfig files 616include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 617 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig 618 @# If the following part fails, include/config/auto.conf should be 619 @# deleted so "make silentoldconfig" will be re-run on the next build. 620 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \ 621 { rm -f include/config/auto.conf; false; } 622 @# include/config.h has been updated after "make silentoldconfig". 623 @# We need to touch include/config/auto.conf so it gets newer 624 @# than include/config.h. 625 @# Otherwise, 'make silentoldconfig' would be invoked twice. 626 $(Q)touch include/config/auto.conf 627 628u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg vpl/u-boot.cfg: 629 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@) 630 631-include include/autoconf.mk 632-include include/autoconf.mk.dep 633 634# We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf 635# is up-to-date. When we switch to a different board configuration, old CONFIG 636# macros are still remaining in include/config/auto.conf. Without the following 637# gimmick, wrong config.mk would be included leading nasty warnings/errors. 638ifneq ($(wildcard $(KCONFIG_CONFIG)),) 639ifneq ($(wildcard include/config/auto.conf),) 640autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \ 641 include/config/auto.conf) 642ifeq ($(autoconf_is_old),) 643include config.mk 644include arch/$(ARCH)/Makefile 645endif 646endif 647endif 648 649# These are set by the arch-specific config.mk. Make sure they are exported 650# so they can be used when building an EFI application. 651export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib 652export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib 653export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib 654export CFLAGS_EFI # Compiler flags to add when building EFI app 655export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app 656export EFI_TARGET # binutils target if EFI is natively supported 657 658export LTO_ENABLE 659 660# This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO 661ifeq ($(NO_LTO),) 662LTO_ENABLE=$(if $(CONFIG_LTO),y) 663endif 664 665# If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use 666# that (or fail if absent). Otherwise, search for a linker script in a 667# standard location. 668 669ifndef LDSCRIPT 670 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug 671 ifdef CONFIG_SYS_LDSCRIPT 672 # need to strip off double quotes 673 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%) 674 endif 675endif 676 677# If there is no specified link script, we look in a number of places for it 678ifndef LDSCRIPT 679 ifeq ($(wildcard $(LDSCRIPT)),) 680 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds 681 endif 682 ifeq ($(wildcard $(LDSCRIPT)),) 683 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds 684 endif 685 ifeq ($(wildcard $(LDSCRIPT)),) 686 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds 687 endif 688endif 689 690else 691# Dummy target needed, because used as prerequisite 692include/config/auto.conf: ; 693endif # $(dot-config) 694 695ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 696KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \ 697 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS) 698# Avoid false positives -Wmaybe-uninitialized 699# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 700KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized 701KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS) 702endif 703 704# 705# Xtensa linker script cannot be preprocessed with -ansi because of 706# preprocessor operations on strings that don't make C identifiers. 707# 708ifeq ($(CONFIG_XTENSA),) 709LDPPFLAGS += -ansi 710endif 711 712ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 713KBUILD_CFLAGS += -Os 714endif 715 716ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED 717KBUILD_CFLAGS += -O2 718endif 719 720ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG 721KBUILD_CFLAGS += -Og 722# Avoid false positives -Wmaybe-uninitialized 723# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394 724KBUILD_CFLAGS += -Wno-maybe-uninitialized 725endif 726 727LTO_CFLAGS := 728LTO_FINAL_LDFLAGS := 729export LTO_CFLAGS LTO_FINAL_LDFLAGS 730ifeq ($(LTO_ENABLE),y) 731 ifeq ($(cc-name),clang) 732 LTO_CFLAGS += -DLTO_ENABLE -flto 733 LTO_FINAL_LDFLAGS += -flto 734 735 AR = $(shell $(CC) -print-prog-name=llvm-ar) 736 NM = $(shell $(CC) -print-prog-name=llvm-nm) 737 else 738 NPROC := $(shell nproc 2>/dev/null || echo 1) 739 LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC) 740 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC) 741 742 # use plugin aware tools 743 AR = $(CROSS_COMPILE)gcc-ar 744 NM = $(CROSS_COMPILE)gcc-nm 745 endif 746 747 CFLAGS_NON_EFI += $(LTO_CFLAGS) 748 749 KBUILD_CFLAGS += $(LTO_CFLAGS) 750endif 751 752ifeq ($(CONFIG_STACKPROTECTOR),y) 753KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong) 754KBUILD_CFLAGS += $(call cc-option,-mstack-protector-guard=global) 755CFLAGS_EFI += $(call cc-option,-fno-stack-protector) 756else 757KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) 758endif 759KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks) 760 761# disable pointer signed / unsigned warnings in gcc 4.0 762KBUILD_CFLAGS += -Wno-pointer-sign 763 764# disable stringop warnings in gcc 8+ 765KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation) 766 767KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds) 768KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds) 769KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow) 770 771# Enabled with W=2, disabled by default as noisy 772KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized) 773 774# change __FILE__ to the relative path from the srctree 775KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) 776 777KBUILD_CFLAGS += -gdwarf-4 778# $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format> 779# option to the assembler. 780KBUILD_AFLAGS += -gdwarf-4 781 782# Report stack usage if supported 783# ARC tools based on GCC 7.1 has an issue with stack usage 784# with naked functions, see commit message for more details 785ifndef CONFIG_ARC 786ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y) 787 KBUILD_CFLAGS += -fstack-usage 788endif 789endif 790 791KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral) 792KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 793 794ifdef CONFIG_CC_IS_CLANG 795KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 796KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 797KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 798KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) 799# Quiet clang warning: comparison of unsigned expression < 0 is always false 800KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 801# CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 802# source of a reference will be _MergedGlobals and not on of the whitelisted names. 803# See modpost pattern 2 804KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 805KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) 806KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype) 807endif 808 809# These warnings generated too much noise in a regular build. 810# Use make W=1 to enable them (see scripts/Makefile.extrawarn) 811KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 812 813# Prohibit date/time macros, which would make the build non-deterministic 814KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 815 816include scripts/Makefile.extrawarn 817 818# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 819KBUILD_CPPFLAGS += $(KCPPFLAGS) 820KBUILD_AFLAGS += $(KAFLAGS) 821KBUILD_CFLAGS += $(KCFLAGS) 822 823KBUILD_LDFLAGS += -z noexecstack 824KBUILD_LDFLAGS += -z norelro 825KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments) 826 827KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g) 828 829# Use UBOOTINCLUDE when you must reference the include/ directory. 830# Needed to be compatible with the O= option 831UBOOTINCLUDE := \ 832 -Iinclude \ 833 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 834 $(if $(CONFIG_$(XPL_)MBEDTLS_LIB), \ 835 "-DMBEDTLS_CONFIG_FILE=\"mbedtls_def_config.h\"" \ 836 -I$(srctree)/lib/mbedtls \ 837 -I$(srctree)/lib/mbedtls/port \ 838 -I$(srctree)/lib/mbedtls/external/mbedtls \ 839 -I$(srctree)/lib/mbedtls/external/mbedtls/include) \ 840 $(if $(CONFIG_$(PHASE_)SYS_THUMB_BUILD), \ 841 $(if $(CONFIG_HAS_THUMB2), \ 842 $(if $(CONFIG_CPU_V7M), \ 843 -I$(srctree)/arch/arm/thumb1/include), \ 844 -I$(srctree)/arch/arm/thumb1/include)) \ 845 -I$(srctree)/arch/$(ARCH)/include \ 846 -include $(srctree)/include/linux/kconfig.h \ 847 -I$(srctree)/dts/upstream/include \ 848 $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \ 849 -I$(srctree)/lib/lwip/u-boot) 850 851NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 852 853# FIX ME 854cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \ 855 $(NOSTDINC_FLAGS) 856c_flags := $(KBUILD_CFLAGS) $(cpp_flags) 857 858######################################################################### 859# U-Boot objects....order is important (i.e. start must be first) 860 861HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n) 862 863libs-$(CONFIG_API) += api/ 864libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/ 865libs-y += boot/ 866libs-$(CONFIG_CMDLINE) += cmd/ 867libs-y += common/ 868libs-$(CONFIG_OF_EMBED) += dts/ 869libs-y += env/ 870libs-y += lib/ 871libs-y += fs/ 872libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/ 873libs-y += disk/ 874libs-y += drivers/ 875libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ 876libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/ 877libs-$(CONFIG_$(PHASE_)ALTERA_SDRAM) += drivers/ddr/altera/ 878libs-y += drivers/usb/cdns3/ 879libs-y += drivers/usb/dwc3/ 880libs-y += drivers/usb/common/ 881libs-y += drivers/usb/emul/ 882libs-y += drivers/usb/eth/ 883libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/ 884libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/ 885libs-y += drivers/usb/host/ 886libs-y += drivers/usb/mtu3/ 887libs-y += drivers/usb/musb/ 888libs-y += drivers/usb/musb-new/ 889libs-y += drivers/usb/isp1760/ 890libs-y += drivers/usb/phy/ 891libs-y += drivers/usb/tcpm/ 892libs-y += drivers/usb/ulpi/ 893ifdef CONFIG_POST 894libs-y += post/ 895endif 896libs-$(CONFIG_$(PHASE_)UNIT_TEST) += test/ 897 898libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/) 899 900libs-y := $(sort $(libs-y)) 901 902u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples 903 904u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-)))) 905 906libs-y := $(patsubst %/, %/built-in.o, $(libs-y)) 907 908u-boot-init := $(head-y) 909u-boot-main := $(libs-y) 910 911 912# Add GCC lib 913ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y) 914PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a 915else 916ifndef CONFIG_CC_IS_CLANG 917PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc 918endif 919endif 920PLATFORM_LIBS += $(PLATFORM_LIBGCC) 921 922ifdef CONFIG_CC_COVERAGE 923KBUILD_CFLAGS += --coverage 924PLATFORM_LIBGCC += -lgcov 925endif 926 927export PLATFORM_LIBS 928export PLATFORM_LIBGCC 929 930# Special flags for CPP when processing the linker script. 931# Pass the version down so we can handle backwards compatibility 932# on the fly. 933LDPPFLAGS += \ 934 -include $(srctree)/include/u-boot/u-boot.lds.h \ 935 -DCPUDIR=$(CPUDIR) \ 936 $(shell $(LD) --version | \ 937 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p') 938 939######################################################################### 940######################################################################### 941 942ifneq ($(CONFIG_BOARD_SIZE_LIMIT),) 943BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT)) 944else 945BOARD_SIZE_CHECK = 946endif 947 948ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0) 949SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit)) 950else 951SPL_SIZE_CHECK = 952endif 953 954ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0) 955TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT)) 956else 957TPL_SIZE_CHECK = 958endif 959 960ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0) 961VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT)) 962else 963VPL_SIZE_CHECK = 964endif 965 966# Statically apply RELA-style relocations (currently arm64 only) 967# This is useful for arm64 where static relocation needs to be performed on 968# the raw binary, but certain simulators only accept an ELF file (but don't 969# do the relocation). 970ifneq ($(CONFIG_STATIC_RELA),) 971# $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base 972quiet_cmd_static_rela = RELOC $@ 973cmd_static_rela = \ 974 tools/relocate-rela $(3) $(2) 975else 976quiet_cmd_static_rela = 977cmd_static_rela = 978endif 979 980# Always append INPUTS so that arch config.mk's can add custom ones 981INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check 982 983ifeq ($(CONFIG_SPL_FSL_PBL),y) 984INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin 985else 986ifneq ($(CONFIG_NXP_ESBC), y) 987# For Secure Boot The Image needs to be signed and Header must also 988# be included. So The image has to be built explicitly 989INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl 990endif 991endif 992INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin 993ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy) 994INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 995else 996ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy) 997INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img 998else 999INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img 1000endif
1001endif 1002INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin 1003INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin 1004 1005# Allow omitting the .dtb output if it is not normally used 1006INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb) 1007ifeq ($(CONFIG_SPL_FRAMEWORK),y) 1008INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img 1009endif 1010INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb 1011ifneq ($(CONFIG_SPL_TARGET),) 1012INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%) 1013endif 1014INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf 1015INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi 1016INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi 1017 1018# Generate this input file for binman 1019ifeq ($(CONFIG_SPL),) 1020ifneq ($(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO)),) 1021INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin 1022endif 1023endif 1024 1025# Add optional build target if defined in board/cpu/soc headers 1026ifneq ($(CONFIG_BUILD_TARGET),) 1027INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%) 1028endif 1029 1030ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1031INPUTS-y += init_sp_bss_offset_check 1032endif 1033 1034ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_) 1035INPUTS-y += u-boot.img 1036endif 1037 1038INPUTS-$(CONFIG_X86) += u-boot-x86-start16.bin u-boot-x86-reset16.bin \ 1039 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \ 1040 $(if $(CONFIG_TPL_X86_16BIT_INIT),tpl/u-boot-tpl.bin) 1041 1042LDFLAGS_u-boot += $(LDFLAGS_FINAL) 1043 1044# Avoid 'Not enough room for program headers' error on binutils 2.28 onwards. 1045LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker) 1046 1047# ld.lld support 1048LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs) 1049 1050LDFLAGS_u-boot += --build-id=none 1051 1052ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),) 1053LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE) 1054endif 1055 1056# make the checker run with the right architecture 1057CHECKFLAGS += --arch=$(ARCH) 1058 1059# insure the checker run with the right endianness 1060CHECKFLAGS += $(if $(CONFIG_SYS_BIG_ENDIAN),-mbig-endian,-mlittle-endian) 1061 1062# the checker needs the correct machine size 1063CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32) 1064 1065# Normally we fill empty space with 0xff 1066quiet_cmd_objcopy = OBJCOPY $@ 1067cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \ 1068 $(OBJCOPYFLAGS_$(@F)) $< $@ 1069 1070# Provide a version which does not do this, for use by EFI and hex/srec 1071quiet_cmd_zobjcopy = OBJCOPY $@ 1072cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@ 1073 1074quiet_cmd_efipayload = OBJCOPY $@ 1075cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@ 1076 1077MKIMAGEOUTPUT ?= /dev/null 1078 1079quiet_cmd_mkimage = MKIMAGE $@ 1080cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \ 1081 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1082 1083quiet_cmd_mkfitimage = MKIMAGE $@ 1084cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \ 1085 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \ 1086 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT)) 1087 1088quiet_cmd_cat = CAT $@ 1089cmd_cat = cat $(filter-out $(PHONY), $^) > $@ 1090 1091append = cat $(filter-out $< $(PHONY), $^) >> $@ 1092 1093quiet_cmd_pad_cat = CAT $@ 1094cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; } 1095 1096quiet_cmd_lzma = LZMA $@ 1097cmd_lzma = lzma -c -z -k -9 $< > $@ 1098 1099cfg: u-boot.cfg 1100 1101quiet_cmd_ofcheck = OFCHK $2 1102cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \ 1103 $(srctree)/scripts/of_allowlist.txt 1104 1105# Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. ) 1106got = $(foreach cfg,$(1),$($(cfg))) 1107 1108# expected value 'y for each one 1109expect = $(foreach cfg,$(1),y) 1110 1111# Show a deprecation message 1112# Args: 1113# 1: List of options to migrate to (e.g. "CONFIG_DM_MMC CONFIG_BLK") 1114# 2: Name of component (e.g . "Ethernet drivers") 1115# 3: Release deadline (e.g. "v202.07") 1116# 4: Condition to require before checking (e.g. "$(CONFIG_NET)") 1117# Note: Script avoids bash construct, hence the strange double 'if' 1118# (patches welcome!) 1119define deprecated 1120 @if [ -n "$(strip $(4))" ]; then if [ "$(got)" != "$(expect)" ]; then \ 1121 echo >&2 "===================== WARNING ======================"; \ 1122 echo >&2 "This board does not use $(firstword $(1)) (Driver Model"; \ 1123 echo >&2 "for $(2)). Please update the board to use"; \ 1124 echo >&2 "$(firstword $(1)) before the $(3) release. Failure to"; \ 1125 echo >&2 "update by the deadline may result in board removal."; \ 1126 echo >&2 "See doc/develop/driver-model/migration.rst for more info."; \ 1127 echo >&2 "===================================================="; \ 1128 fi; fi 1129 1130endef 1131 1132# Timestamp file to make sure that binman always runs 1133.binman_stamp: $(INPUTS-y) FORCE 1134ifeq ($(CONFIG_BINMAN),y) 1135 $(call if_changed,binman) 1136endif 1137 @touch $@ 1138 1139all: .binman_stamp 1140 1141ifeq ($(CONFIG_DEPRECATED),y) 1142 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.") 1143endif 1144ifeq ($(CONFIG_OF_EMBED)$(CONFIG_EFI_APP),y) 1145 @echo >&2 "===================== WARNING ======================" 1146 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only" 1147 @echo >&2 "be used for debugging purposes. Please use" 1148 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline." 1149 @echo >&2 "See doc/develop/devicetree/control.rst for more info." 1150 @echo >&2 "====================================================" 1151endif 1152 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\ 1153 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG)) 1154 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY)) 1155 @# CFG_SYS_TIMER_RATE has brackets in it for some boards which 1156 @# confuses this rule. Use if() to send just a single character which 1157 @# is enable to tell 'deprecated' that one of these symbols exists 1158 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x)) 1159 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL)) 1160 @# Check that this build does not override OF_HAS_PRIOR_STAGE by 1161 @# disabling OF_BOARD. 1162 $(call cmd,ofcheck,$(KCONFIG_CONFIG)) 1163 1164PHONY += dtbs dtbs_check 1165dtbs: dts/dt.dtb 1166 @: 1167dts/dt.dtb: dtbs_prepare u-boot 1168 $(Q)$(MAKE) $(build)=dts dtbs 1169 1170dtbs_prepare: prepare3 1171 1172ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),) 1173export CHECK_DTBS=y 1174endif 1175 1176ifneq ($(CHECK_DTBS),) 1177dtbs_prepare: dt_binding_check 1178endif 1179 1180dtbs_check: dt_binding_check dtbs 1181 1182DT_BINDING_DIR := dts/upstream/Bindings 1183dt_binding_check: scripts_dtc 1184 $(Q)$(MAKE) $(build)=$(DT_BINDING_DIR) $(DT_BINDING_DIR)/processed-schema.json 1185 1186quiet_cmd_copy = COPY $@ 1187 cmd_copy = cp $< $@ 1188 1189ifeq ($(CONFIG_OF_UPSTREAM),y) 1190ifeq ($(CONFIG_ARM64),y) 1191dt_dir := dts/upstream/src/arm64 1192else 1193dt_dir := dts/upstream/src/$(ARCH) 1194endif 1195else 1196dt_dir := arch/$(ARCH)/dts 1197endif 1198 1199ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1200 1201ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y) 1202FINAL_DTB_CONTAINER = fit-dtb.blob.lzo 1203else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y) 1204FINAL_DTB_CONTAINER = fit-dtb.blob.gz 1205else 1206FINAL_DTB_CONTAINER = fit-dtb.blob 1207endif 1208 1209fit-dtb.blob.gz: fit-dtb.blob 1210 @gzip -kf9 $< > $@ 1211 1212fit-dtb.blob.lzo: fit-dtb.blob 1213 @lzop -f9 $< > $@ 1214 1215fit-dtb.blob: dts/dt.dtb FORCE 1216 $(call if_changed,mkimage) 1217ifneq ($(SOURCE_DATE_EPOCH),) 1218 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob 1219 chmod 0600 fit-dtb.blob 1220endif 1221 1222MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1223 -a 0 -e 0 -E \ 1224 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null 1225 1226MKIMAGEFLAGS_fit-dtb.blob += -B 0x8 1227 1228ifneq ($(EXT_DTB),) 1229u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB) 1230 $(call if_changed,cat) 1231else 1232u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) 1233 $(call if_changed,cat) 1234endif 1235 1236u-boot.bin: u-boot-fit-dtb.bin FORCE 1237 $(call if_changed,copy) 1238 1239ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1240u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1241 $(call if_changed,cat) 1242endif 1243 1244else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.) 1245 1246ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1247u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE 1248 $(call if_changed,cat) 1249endif 1250 1251u-boot.bin: u-boot-dtb.bin FORCE 1252 $(call if_changed,copy) 1253 1254else 1255u-boot.bin: u-boot-nodtb.bin FORCE 1256 $(call if_changed,copy) 1257endif 1258 1259# we call Makefile in arch/arm/mach-imx which 1260# has targets which are dependent on targets defined 1261# here. make could not resolve them and we must ensure 1262# that they are finished before calling imx targets 1263ifeq ($(CONFIG_MULTI_DTB_FIT),y) 1264IMX_DEPS = u-boot-fit-dtb.bin 1265endif 1266 1267%.imx: $(IMX_DEPS) %.bin 1268 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1269 $(BOARD_SIZE_CHECK) 1270 1271%.vyb: %.imx 1272 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@ 1273 1274quiet_cmd_copy = COPY $@ 1275 cmd_copy = cp $< $@ 1276 1277u-boot.dtb: dts/dt.dtb 1278 $(call cmd,copy) 1279 1280OBJCOPYFLAGS_u-boot.hex := -O ihex 1281 1282OBJCOPYFLAGS_u-boot.srec := -O srec 1283 1284u-boot.hex u-boot.srec: u-boot FORCE 1285 $(call if_changed,zobjcopy) 1286 1287OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec) 1288 1289ifeq ($(CONFIG_POSITION_INDEPENDENT)$(CONFIG_RCAR_GEN3),yy) 1290# The flash_writer tool and previous recovery tools 1291# require the SREC load address to be 0x5000_0000 . 1292# The PIE U-Boot build sets the address to 0x0, so 1293# override the address back to make u-boot-elf.srec 1294# compatible with the recovery tools. 1295OBJCOPYFLAGS_u-boot-elf.srec += --change-addresses=0x50000000 1296endif 1297 1298u-boot-elf.srec: u-boot.elf FORCE 1299 $(call if_changed,zobjcopy) 1300 1301OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec) 1302 1303spl/u-boot-spl.srec: spl/u-boot-spl FORCE 1304 $(call if_changed,zobjcopy) 1305 1306%.scif: %.srec 1307 $(Q)$(MAKE) $(build)=arch/arm/mach-renesas $@ 1308 1309OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \ 1310 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \ 1311 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec)) 1312 1313binary_size_check: u-boot-nodtb.bin FORCE 1314 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{ print $$1 }') ; \ 1315 map_size=$(shell cat u-boot.map | \ 1316 awk ' \ 1317 /_image_copy_start/ { start = $$1 } \ 1318 /_image_binary_end/ { end = $$1 } \ 1319 END { \ 1320 if (start != "" && end != "") \ 1321 print end " " start; \ 1322 }' \ 1323 | sh -c 'read end start && echo $$((end - start))'); \ 1324 if [ -n "$$map_size" ]; then \ 1325 if test $$map_size -ne $$file_size; then \ 1326 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \ 1327 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \ 1328 exit 1; \ 1329 fi; \ 1330 fi 1331 1332ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy) 1333ifneq ($(CONFIG_SYS_MALLOC_F),) 1334subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN))) 1335else 1336subtract_sys_malloc_f_len = true 1337endif 1338# The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is 1339# so low that the DTB could probably use 90%+ of the available space, for 1340# current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be 1341# safe for now and tweak this later if space becomes tight. 1342# A rejected alternative would be to check that some absolute minimum stack 1343# space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is 1344# deliberately build-specific, to take account of build-to-build stack usage 1345# differences due to different feature sets, there is no common absolute value 1346# to check against. 1347init_sp_bss_offset_check: u-boot.dtb FORCE 1348 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \ 1349 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \ 1350 $(subtract_sys_malloc_f_len) ; \ 1351 quarter_space=$$(($${space} / 4)) ; \ 1352 if [ $${dtb_size} -gt $${quarter_space} ]; then \ 1353 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \ 1354 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \ 1355 exit 1 ; \ 1356 fi 1357endif 1358 1359shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); } 1360 1361quiet_cmd_objcopy_uboot = OBJCOPY $@ 1362ifdef cmd_static_rela 1363cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; } 1364else 1365cmd_objcopy_uboot = $(cmd_objcopy) 1366endif 1367 1368u-boot-nodtb.bin: u-boot FORCE 1369 $(call if_changed,objcopy_uboot) 1370 $(BOARD_SIZE_CHECK) 1371 1372u-boot.ldr: u-boot 1373 $(CREATE_LDR_ENV) 1374 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS) 1375 $(BOARD_SIZE_CHECK) 1376 1377# binman 1378# --------------------------------------------------------------------------- 1379# Use 'make BINMAN_DEBUG=1' to enable debugging 1380# Use 'make BINMAN_VERBOSE=3' to set vebosity level 1381 1382ifneq ($(EXT_DTB),) 1383ext_dtb_list := $(basename $(notdir $(EXT_DTB))) 1384default_dt := $(firstword $(ext_dtb_list)) 1385of_list := "$(ext_dtb_list)" 1386of_list_dirs := $(dir $(EXT_DTB)) 1387else 1388of_list := $(CONFIG_OF_LIST) 1389ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),) 1390of_list_dirs := $(dt_dir) arch/$(ARCH)/dts 1391else 1392of_list_dirs := $(dt_dir) 1393endif 1394default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE)) 1395endif 1396 1397binman_dtb := $(shell echo $(CONFIG_BINMAN_DTB)) 1398ifeq ($(strip $(binman_dtb)),) 1399ifeq ($(CONFIG_OF_EMBED),y) 1400binman_dtb = ./dts/dt.dtb 1401else 1402binman_dtb = ./u-boot.dtb 1403endif 1404endif 1405 1406quiet_cmd_binman = BINMAN $@ 1407cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \ 1408 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \ 1409 --toolpath $(objtree)/tools \ 1410 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \ 1411 build -u -d $(binman_dtb) -O . -m \ 1412 --allow-missing --fake-ext-blobs \ 1413 $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \ 1414 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \ 1415 $(foreach f,$(of_list_dirs),-I $(f)) -a of-list=$(of_list) \ 1416 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \ 1417 -a atf-bl31-path=${BL31} \ 1418 -a tee-os-path=${TEE} \ 1419 -a ti-dm-path=${TI_DM} \ 1420 -a opensbi-path=${OPENSBI} \ 1421 -a default-dt=$(default_dt) \ 1422 -a scp-path=$(SCP) \ 1423 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \ 1424 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \ 1425 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \ 1426 -a vpl-bss-pad=$(if $(CONFIG_VPL_SEPARATE_BSS),,1) \ 1427 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \ 1428 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \ 1429 -a vpl-dtb=$(CONFIG_VPL_OF_REAL) \ 1430 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \ 1431 -a of-spl-remove-props=$(CONFIG_OF_SPL_REMOVE_PROPS) \ 1432 $(BINMAN_$(@F)) 1433 1434OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex 1435 1436OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec 1437 1438u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE 1439 $(call if_changed,zobjcopy) 1440 1441ifdef CONFIG_SPL_LOAD_FIT 1442MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \ 1443 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1444 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \ 1445 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \ 1446 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(DEVICE_TREE))) \ 1447 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \ 1448 $(patsubst %,-b $(dt_dir)/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST))) 1449else 1450MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \ 1451 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1452 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1453MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \ 1454 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1455 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1456u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log 1457endif 1458 1459MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img) 1460 1461# Some boards have the kwbimage.cfg file written in advance, while some 1462# other boards generate it on the fly during the build in the build tree. 1463# Let's check if the file exists in the build tree first, otherwise we 1464# fall back to use the one in the source tree. 1465KWD_CONFIG_FILE = $(shell \ 1466 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \ 1467 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1468 else \ 1469 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \ 1470 fi) 1471 1472MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \ 1473 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) 1474 1475MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \ 1476 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1477 $(if $(KEYDIR),-k $(KEYDIR)) 1478 1479MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1480 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage 1481 1482UBOOT_BIN := u-boot.bin 1483 1484MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \ 1485 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \ 1486 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" 1487 1488u-boot.bin.lzma: u-boot.bin FORCE 1489 $(call if_changed,lzma) 1490 1491u-boot-lzma.img: u-boot.bin.lzma FORCE 1492 $(call if_changed,mkimage) 1493 1494fit_image := $(if $(CONFIG_SANDBOX_VPL),u-boot,u-boot-nodtb.bin) 1495 1496u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \ 1497 $(if $(CONFIG_SPL_LOAD_FIT),$(fit_image) \ 1498 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1499 ,$(UBOOT_BIN)) FORCE 1500 $(call if_changed,mkimage) 1501 $(BOARD_SIZE_CHECK) 1502 1503ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y) 1504MKIMAGEFLAGS_u-boot.itb = 1505else 1506MKIMAGEFLAGS_u-boot.itb = -E 1507endif 1508MKIMAGEFLAGS_u-boot.itb += -B 0x8 1509 1510ifdef U_BOOT_ITS 1511u-boot.itb: u-boot-nodtb.bin \ 1512 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \ 1513 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \ 1514 $(U_BOOT_ITS) FORCE 1515 $(call if_changed,mkfitimage) 1516 $(BOARD_SIZE_CHECK) 1517endif 1518 1519u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE 1520 $(call if_changed,mkimage) 1521 $(BOARD_SIZE_CHECK) 1522 1523u-boot.dis: u-boot 1524 $(OBJDUMP) -d $< > $@ 1525 1526ifneq ($(CONFIG_SPL_PAYLOAD),) 1527SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%) 1528else 1529SPL_PAYLOAD := u-boot.bin 1530endif 1531 1532SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%) 1533 1534OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \ 1535 --pad-to=$(CONFIG_SPL_PAD_TO) 1536u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE 1537 $(call if_changed,pad_cat) 1538 1539ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy) 1540MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE) 1541 1542lpc32xx-spl.img: spl/u-boot-spl.bin FORCE 1543 $(call if_changed,mkimage) 1544 1545OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1546 1547lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE 1548 $(call if_changed,objcopy) 1549 1550OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1551 1552lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE 1553 $(call if_changed,objcopy) 1554 1555lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE 1556 $(call if_changed,cat) 1557 1558endif 1559 1560OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \ 1561 --pad-to=$(CONFIG_TPL_PAD_TO) 1562tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE 1563 $(call if_changed,pad_cat) 1564 1565SPL: spl/u-boot-spl.bin FORCE 1566 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1567 1568#ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y) 1569ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y) 1570u-boot.cnt: u-boot.bin FORCE 1571 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1572 1573flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE 1574 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1575else 1576ifeq ($(CONFIG_BINMAN),y) 1577flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE 1578 $(call if_changed,binman) 1579else 1580flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE 1581 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1582endif 1583endif 1584#endif 1585 1586u-boot.uim: u-boot.bin FORCE 1587 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1588 1589u-boot-nand.imx: u-boot.imx FORCE 1590 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1591 1592u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE 1593 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ 1594 1595MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE) 1596 1597u-boot.ubl: u-boot-with-spl.bin FORCE 1598 $(call if_changed,mkimage) 1599 1600MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \ 1601 -T aisimage -e $(CONFIG_SPL_TEXT_BASE) 1602spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE 1603 $(call if_changed,mkimage) 1604 1605OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) 1606u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE 1607 $(call if_changed,pad_cat) 1608 1609u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin 1610 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb 1611u-boot.sb: u-boot.bin spl/u-boot-spl.bin 1612 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb 1613 1614MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \ 1615 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER 1616spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE 1617 $(call if_changed,mkimage) 1618 1619ifneq ($(CONFIG_ARCH_SOCFPGA),) 1620quiet_cmd_gensplx4 = GENSPLX4 $@ 1621cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \ 1622 --pad-to=$(CONFIG_SPL_PAD_TO) \ 1623 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \ 1624 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \ 1625 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; } 1626spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE 1627 $(call if_changed,gensplx4) 1628 1629quiet_cmd_socboot = SOCBOOT $@ 1630cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1631u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE 1632 $(call if_changed,socboot) 1633 1634quiet_cmd_gensplpadx4 = GENSPLPADX4 $@ 1635cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \ 1636 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1637 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1638 spl/u-boot-spl.sfp spl/u-boot-spl.pad \ 1639 spl/u-boot-spl.sfp spl/u-boot-spl.pad > $@ || \ 1640 { rm -f $@ spl/u-boot-spl.pad; false; } 1641u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE 1642 $(call if_changed,gensplpadx4) 1643 1644quiet_cmd_socnandboot = SOCNANDBOOT $@ 1645cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; } 1646u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE 1647 $(call if_changed,socnandboot) 1648 1649endif 1650 1651ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy) 1652u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE 1653 $(call if_changed,binman) 1654 1655OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec 1656u-boot-br.bin: u-boot FORCE 1657 $(call if_changed,objcopy) 1658endif 1659 1660quiet_cmd_ldr = LD $@ 1661cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \ 1662 $(filter-out FORCE,$^) -o $@ 1663 1664ifdef CONFIG_X86 1665OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16 1666u-boot-x86-start16.bin: u-boot FORCE 1667 $(call if_changed,objcopy) 1668 1669OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec 1670u-boot-x86-reset16.bin: u-boot FORCE 1671 $(call if_changed,objcopy) 1672 1673endif # CONFIG_X86 1674 1675OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI) 1676u-boot-app.efi: u-boot FORCE 1677 $(call if_changed,zobjcopy) 1678 1679u-boot.bin.o: u-boot.bin FORCE 1680 $(call if_changed,efipayload) 1681 1682u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE 1683 $(call if_changed_dep,cpp_lds) 1684 1685# Rule to link the EFI payload which contains a stub and a U-Boot binary 1686quiet_cmd_u-boot_payload ?= LD $@ 1687 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \ 1688 -T u-boot-payload.lds arch/x86/cpu/call32.o \ 1689 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \ 1690 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB)) 1691 1692u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE 1693 $(call if_changed,u-boot_payload) 1694 1695OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI) 1696u-boot-payload.efi: u-boot-payload FORCE 1697 $(call if_changed,zobjcopy) 1698 1699u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE 1700 $(call if_changed,cat) 1701 1702#Add a target to create boot binary having SPL binary in PBI format 1703#concatenated with u-boot binary. It is need by PowerPC SoC having 1704#internal SRAM <= 512KB. 1705MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \ 1706 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \ 1707 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE) 1708 1709spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE 1710 $(call if_changed,mkimage) 1711 1712ifeq ($(ARCH),arm) 1713UBOOT_BINLOAD := u-boot.img 1714else 1715UBOOT_BINLOAD := u-boot.bin 1716endif 1717 1718OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \ 1719 --gap-fill=0xff 1720 1721u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE 1722 $(call if_changed,pad_cat) 1723 1724quiet_cmd_u-boot-elf ?= LD $@ 1725 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \ 1726 $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \ 1727 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \ 1728 -Ttext=$(CONFIG_TEXT_BASE) 1729u-boot.elf: u-boot.bin u-boot-elf.lds 1730 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o 1731 $(call if_changed,u-boot-elf) 1732 1733u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE 1734 $(call if_changed_dep,cpp_lds) 1735 1736# MediaTek's ARM-based u-boot needs a header to contains its load address 1737# which is parsed by the BootROM. 1738# If the SPL build is enabled, the header will be added to the spl binary, 1739# and the spl binary and the u-boot.img will be combined into one file. 1740# Otherwise the header will be added to the u-boot.bin directly. 1741 1742ifeq ($(CONFIG_SPL),y) 1743spl/u-boot-spl-mtk.bin: spl/u-boot-spl 1744 1745u-boot-mtk.bin: u-boot-with-spl.bin 1746 $(call if_changed,copy) 1747else 1748MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \ 1749 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \ 1750 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))" 1751 1752u-boot-mtk.bin: u-boot.bin FORCE 1753 $(call if_changed,mkimage) 1754endif 1755 1756quiet_cmd_endian_swap = SWAP $@ 1757 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@ 1758 1759u-boot-swap.bin: u-boot.bin FORCE 1760 $(call if_changed,endian_swap) 1761 1762ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink) 1763 1764# Generate linker list symbols references to force compiler to not optimize 1765# them away when compiling with LTO 1766ifeq ($(LTO_ENABLE),y) 1767u-boot-keep-syms-lto := keep-syms-lto.o 1768u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto)) 1769 1770quiet_cmd_keep_syms_lto = KSL $@ 1771 cmd_keep_syms_lto = \ 1772 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@ 1773 1774quiet_cmd_keep_syms_lto_cc = KSLCC $@ 1775 cmd_keep_syms_lto_cc = \ 1776 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $< 1777 1778$(u-boot-keep-syms-lto_c): $(u-boot-main) 1779 $(call if_changed,keep_syms_lto) 1780$(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c) 1781 $(call if_changed,keep_syms_lto_cc) 1782else 1783u-boot-keep-syms-lto := 1784endif 1785 1786# Rule to link u-boot 1787# May be overridden by arch/$(ARCH)/config.mk 1788ifeq ($(LTO_ENABLE),y) 1789quiet_cmd_u-boot__ ?= LTO $@ 1790 cmd_u-boot__ ?= \ 1791 touch $(u-boot-main) ; \ 1792 $(CC) -nostdlib -nostartfiles \ 1793 $(LTO_FINAL_LDFLAGS) $(c_flags) \ 1794 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \ 1795 -T u-boot.lds $(u-boot-init) \ 1796 -Wl,--whole-archive \ 1797 $(u-boot-main) \ 1798 $(u-boot-keep-syms-lto) \ 1799 $(PLATFORM_LIBS) \ 1800 -Wl,--no-whole-archive \ 1801 -Wl,-Map,u-boot.map; \ 1802 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1803else 1804quiet_cmd_u-boot__ ?= LD $@ 1805 cmd_u-boot__ ?= \ 1806 touch $(u-boot-main) ; \ 1807 $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \ 1808 -T u-boot.lds $(u-boot-init) \ 1809 --whole-archive \ 1810 $(u-boot-main) \ 1811 --no-whole-archive \ 1812 $(PLATFORM_LIBS) -Map u-boot.map; \ 1813 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true) 1814endif 1815 1816quiet_cmd_smap = GEN common/system_map.o 1817cmd_smap = \ 1818 smap=`$(call SYSTEM_MAP,u-boot) | \ 1819 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ 1820 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \ 1821 -c $(srctree)/common/system_map.c -o common/system_map.o 1822 1823u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE 1824 +$(call if_changed,u-boot__) 1825ifeq ($(CONFIG_KALLSYMS),y) 1826 $(call cmd,smap) 1827 $(call cmd,u-boot__) common/system_map.o 1828endif 1829 1830ifeq ($(CONFIG_RISCV),y) 1831 @tools/prelink-riscv $@ 1832endif 1833 1834quiet_cmd_sym ?= SYM $@ 1835 cmd_sym ?= $(OBJDUMP) -t $< > $@ 1836u-boot.sym: u-boot FORCE 1837 $(call if_changed,sym) 1838 1839# Environment processing 1840# --------------------------------------------------------------------------- 1841 1842# Directory where we expect the .env file, if it exists 1843ENV_DIR := $(srctree)/board/$(BOARDDIR) 1844 1845# Basename of .env file, stripping quotes 1846ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%) 1847 1848# Filename of .env file 1849ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env 1850 1851# Default filename, if CONFIG_ENV_SOURCE_FILE is empty 1852ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env 1853 1854# Select between the CONFIG_ENV_SOURCE_FILE and the default one 1855ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD))) 1856 1857# Run the environment text file through the preprocessor, but only if it is 1858# non-empty, to save time and possible build errors if something is wonky with 1859# the board. 1860# If there is no ENV_FILE, produce an empty output file, to prevent a previous 1861# build's file being used in the case of in-tree builds. 1862quiet_cmd_gen_envp = ENVP $@ 1863 cmd_gen_envp = \ 1864 if [ -s "$(ENV_FILE)" ]; then \ 1865 $(CPP) -P $(cpp_flags) -x assembler-with-cpp -undef \ 1866 -D__ASSEMBLY__ \ 1867 -D__UBOOT_CONFIG__ \ 1868 -DDEFAULT_DEVICE_TREE=$(subst ",,$(CONFIG_DEFAULT_DEVICE_TREE)) \ 1869 -I . -I include -I $(srctree)/include \ 1870 -include linux/kconfig.h -include include/config.h \ 1871 -I$(srctree)/arch/$(ARCH)/include \ 1872 $< -o $@; \ 1873 else \ 1874 rm -f $@; \ 1875 touch $@ ; \ 1876 fi 1877include/generated/env.in: include/generated/env.txt 1878 $(call cmd,gen_envp) 1879 1880# Regenerate the environment if it changes 1881# We use 'wildcard' since the file is not required to exist (at present), in 1882# which case we don't want this dependency, but instead should create an empty 1883# file 1884# This rule is useful since it shows the source file for the environment 1885quiet_cmd_envc = ENVC $@ 1886 cmd_envc = \ 1887 if [ -f "$<" ]; then \ 1888 cat $< > $@; \ 1889 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \ 1890 echo "Missing file $(ENV_FILE_CFG)"; \ 1891 else \ 1892 touch $@ ; \ 1893 fi 1894 1895include/generated/env.txt: $(wildcard $(ENV_FILE)) include/generated/autoconf.h 1896 $(call cmd,envc) 1897 1898# Write out the resulting environment, converted to a C string 1899quiet_cmd_gen_envt = ENVT $@ 1900 cmd_gen_envt = \ 1901 awk -f $(srctree)/scripts/env2string.awk $< >$@ 1902$(env_h): include/generated/env.in 1903 $(call cmd,gen_envt) 1904 1905# --------------------------------------------------------------------------- 1906 1907# The actual objects are generated when descending, 1908# make sure no implicit rule kicks in 1909$(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ; 1910 1911# Handle descending into subdirectories listed in $(u-boot-dirs) 1912# Preset locale variables to speed up the build process. Limit locale 1913# tweaks to this spot to avoid wrong language settings when running 1914# make menuconfig etc. 1915# Error messages still appears in the original language 1916 1917PHONY += $(u-boot-dirs) 1918$(u-boot-dirs): prepare scripts 1919 $(Q)$(MAKE) $(build)=$@ 1920 1921tools: prepare 1922# The "tools" are needed early 1923$(filter-out tools, $(u-boot-dirs)): tools 1924# The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC 1925# is "yes"), so compile examples after U-Boot is compiled. 1926examples: $(filter-out examples, $(u-boot-dirs)) 1927 1928# The setlocalversion script comes from linux and expects a 1929# KERNELVERSION variable in the environment for figuring out which 1930# annotated tags are relevant. Pass UBOOTVERSION. 1931define filechk_uboot.release 1932 KERNELVERSION=$(UBOOTVERSION) $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree) 1933endef 1934 1935# Store (new) UBOOTRELEASE string in include/config/uboot.release 1936include/config/uboot.release: include/config/auto.conf FORCE 1937 $(call filechk,uboot.release) 1938 1939 1940# Things we need to do before we recursively start building the kernel 1941# or the modules are listed in "prepare". 1942# A multi level approach is used. prepareN is processed before prepareN-1. 1943# archprepare is used in arch Makefiles and when processed asm symlink, 1944# version.h and scripts_basic is processed / created. 1945 1946# Listed in dependency order 1947PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 1948 1949# prepare3 is used to check if we are building in a separate output directory, 1950# and if so do: 1951# 1) Check that make has not been executed in the kernel src $(srctree) 1952prepare3: include/config/uboot.release 1953ifneq ($(KBUILD_SRC),) 1954 @$(kecho) ' Using $(srctree) as source for U-Boot' 1955 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 1956 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 1957 echo >&2 " in the '$(srctree)' directory.";\ 1958 /bin/false; \ 1959 fi; 1960endif 1961 1962# prepare2 creates a makefile if using a separate output directory 1963prepare2: prepare3 outputmakefile cfg 1964 1965prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \ 1966 include/config/auto.conf 1967ifeq ($(wildcard $(LDSCRIPT)),) 1968 @echo >&2 " Could not find linker script." 1969 @/bin/false 1970endif 1971 1972ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y) 1973prepare1: $(defaultenv_h) 1974 1975envtools: $(defaultenv_h) 1976endif 1977 1978archprepare: prepare1 scripts_basic 1979 1980prepare0: archprepare FORCE 1981 $(Q)$(MAKE) $(build)=. 1982 1983# All the preparing.. 1984prepare: prepare0 1985 1986# Generate some files 1987# --------------------------------------------------------------------------- 1988 1989# Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers 1990define filechk_version.h 1991 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \ 1992 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \ 1993 echo \#define U_BOOT_VERSION_NUM $(VERSION); \ 1994 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \ 1995 sed -e "s/^0*//"); \ 1996 echo \#define HOST_ARCH $(HOST_ARCH); \ 1997 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \ 1998 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; ) 1999endef 2000
2001# The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date. 2002# The BSD date on the other hand behaves different and would produce errors 2003# with the misused '-d' switch. Respect that and search a working date with 2004# well known pre- and suffixes for the GNU variant of date. 2005define filechk_timestamp.h 2006 (if test -n "$${SOURCE_DATE_EPOCH}"; then \ 2007 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \ 2008 DATE=""; \ 2009 for date in gdate date.gnu date; do \ 2010 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \ 2011 done; \ 2012 if test -n "$${DATE}"; then \ 2013 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \ 2014 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \ 2015 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \ 2016 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \ 2017 else \ 2018 return 42; \ 2019 fi; \ 2020 else \ 2021 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \ 2022 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \ 2023 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \ 2024 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \ 2025 fi) 2026endef 2027 2028define filechk_defaultenv.h 2029 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \ 2030 tr '\n' '\0' | \ 2031 sed -e 's/\\\x0\s*//g' | \ 2032 xxd -i ; ) 2033endef 2034 2035define filechk_dt.h 2036 (if test -n "$${DEVICE_TREE}"; then \ 2037 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \ 2038 else \ 2039 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \ 2040 fi) 2041endef 2042 2043$(version_h): include/config/uboot.release FORCE 2044 $(call filechk,version.h) 2045 2046$(timestamp_h): $(srctree)/Makefile FORCE 2047 $(call filechk,timestamp.h) 2048 2049$(dt_h): $(srctree)/Makefile FORCE 2050 $(call filechk,dt.h) 2051 2052$(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE 2053 $(call filechk,defaultenv.h) 2054 2055# --------------------------------------------------------------------------- 2056# Devicetree files 2057 2058ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),) 2059dtstree := arch/$(SRCARCH)/boot/dts 2060endif 2061 2062ifneq ($(dtstree),) 2063 2064%.dtb: prepare3 scripts_dtc 2065 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@ 2066 2067PHONY += dtbs dtbs_install 2068dtbs: prepare3 scripts_dtc 2069 $(Q)$(MAKE) $(build)=$(dtstree) 2070 2071dtbs_install: 2072 $(Q)$(MAKE) $(dtbinst)=$(dtstree) 2073 2074endif 2075 2076# Check dtc and pylibfdt, if DTC is provided, else build them 2077PHONY += scripts_dtc 2078scripts_dtc: scripts_basic 2079 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \ 2080 $(MAKE) $(build)=scripts/dtc; \ 2081 else \ 2082 if ! $(DTC) -v >/dev/null; then \ 2083 echo '*** Failed to check dtc version: $(DTC)'; \ 2084 false; \ 2085 else \ 2086 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \ 2087 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \ 2088 false; \ 2089 else \ 2090 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \ 2091 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \ 2092 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \ 2093 false; \ 2094 fi; \ 2095 fi; \ 2096 fi; \ 2097 fi; \ 2098 fi 2099 2100# --------------------------------------------------------------------------- 2101quiet_cmd_cpp_lds = LDS $@ 2102cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \ 2103 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $< 2104 2105u-boot.lds: $(LDSCRIPT) prepare FORCE 2106 $(call if_changed_dep,cpp_lds) 2107 2108spl/u-boot-spl.bin: spl/u-boot-spl 2109 @: 2110 $(SPL_SIZE_CHECK) 2111 2112spl/u-boot-spl-dtb.bin: spl/u-boot-spl 2113 @: 2114 2115spl/u-boot-spl-dtb.hex: spl/u-boot-spl 2116 @: 2117 2118spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb) 2119 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.xpl all 2120 2121spl/sunxi-spl.bin: spl/u-boot-spl 2122 @: 2123 2124spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin 2125 @: 2126 2127spl/u-boot-spl.sfp: spl/u-boot-spl 2128 @: 2129 2130spl/boot.bin: spl/u-boot-spl 2131 @: 2132 2133tpl/u-boot-tpl.bin: tpl/u-boot-tpl 2134 @: 2135 $(TPL_SIZE_CHECK) 2136 2137tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2138 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.xpl all 2139 2140vpl/u-boot-vpl.bin: vpl/u-boot-vpl 2141 @: 2142 $(VPL_SIZE_CHECK) 2143 2144vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb) 2145 $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.xpl all 2146 2147TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include) 2148 2149FIND := find 2150FINDFLAGS := -L 2151 2152tags ctags: 2153 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2154 -name '*.[chS]' -print` 2155 ln -s ctags tags 2156 2157etags: 2158 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \ 2159 -name '*.[chS]' -print` 2160cscope: 2161 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ 2162 cscope.files 2163 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ 2164 grep -xvf - cscope.files > cscope.files.no-symlinks; \ 2165 mv cscope.files.no-symlinks cscope.files 2166 cscope -b -q -k 2167 2168SYSTEM_MAP = \ 2169 $(NM) $1 | \ 2170 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \ 2171 LC_ALL=C sort 2172System.map: u-boot 2173 @$(call SYSTEM_MAP,$<) > $@ 2174 2175######################################################################### 2176 2177# ARM relocations should all be R_ARM_RELATIVE (32-bit) or 2178# R_AARCH64_RELATIVE (64-bit). 2179checkarmreloc: u-boot 2180 @RELOC="`$(READELF) -r -W $< | cut -d ' ' -f 4 | \ 2181 grep R_A | sort -u`"; \ 2182 if test "$$RELOC" != "R_ARM_RELATIVE" -a \ 2183 "$$RELOC" != "R_AARCH64_RELATIVE"; then \ 2184 echo "$< contains unexpected relocations: $$RELOC"; \ 2185 false; \ 2186 fi 2187 2188tools/version.h: include/version.h 2189 $(Q)mkdir -p $(dir $@) 2190 $(call if_changed,copy) 2191 2192envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h 2193 $(Q)$(MAKE) $(build)=tools/env 2194 2195tools-only: export TOOLS_ONLY=y 2196tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h 2197 $(Q)$(MAKE) $(build)=tools 2198 2199tools-all: export HOST_TOOLS_ALL=y 2200tools-all: envtools tools ; 2201 2202cross_tools: export CROSS_BUILD_TOOLS=y 2203cross_tools: tools ; 2204 2205.PHONY : CHANGELOG 2206CHANGELOG: 2207 git log --no-merges U-Boot-1_1_5.. | \ 2208 unexpand -a | sed -e 's/\s\s*$$//' > $@ 2209 2210######################################################################### 2211 2212### 2213# Cleaning is done on three levels. 2214# make clean Delete most generated files 2215# Leave enough to build external modules 2216# make mrproper Delete the current configuration, and all generated files 2217# make distclean Remove editor backup files, patch leftover files and the like 2218 2219# Directories & files removed with 'make clean' 2220CLEAN_DIRS += $(MODVERDIR) \ 2221 $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \ 2222 $(filter-out include, $(shell ls -1 $d 2>/dev/null)))) 2223 2224CLEAN_FILES += include/autoconf.mk* include/bmp_logo.h include/bmp_logo_data.h \ 2225 include/config.h include/generated/env.* drivers/video/u_boot_logo.S \ 2226 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \ 2227 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \ 2228 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \ 2229 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \ 2230 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \ 2231 itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \ 2232 mkimage.rom.mkimage mkimage-in-simple-bin* rom.map simple-bin* \ 2233 idbloader-spi.img lib/efi_loader/helloworld_efi.S *.itb \ 2234 Test* capsule*.*.efi-capsule capsule*.map mkimage.imx-boot.spl \ 2235 mkimage.imx-boot.u-boot mkimage-out.imx-boot.spl mkimage-out.imx-boot.u-boot 2236 2237# Directories & files removed with 'make mrproper' 2238MRPROPER_DIRS += include/config include/generated spl tpl vpl \ 2239 .tmp_objdiff doc/output include/asm 2240 2241# Remove include/asm symlink created by U-Boot before v2014.01 2242MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \ 2243 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 2244 drivers/video/fonts/*.S include/asm *imx8mimage* *imx8mcst* 2245 2246# clean - Delete most, but leave enough to build external modules 2247# 2248clean: rm-dirs := $(CLEAN_DIRS) 2249clean: rm-files := $(CLEAN_FILES) 2250 2251clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f)) 2252 2253clean-dirs := $(addprefix _clean_, $(clean-dirs)) 2254 2255PHONY += $(clean-dirs) clean archclean 2256$(clean-dirs): 2257 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 2258 2259clean: $(clean-dirs) 2260 $(call cmd,rmdirs) 2261 $(call cmd,rmfiles) 2262 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 2263 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 2264 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \ 2265 -o -name '*.dtb' -o -name '*.dtbo' \ 2266 -o -name '*.dtb.S' -o -name '*.dtbo.S' \ 2267 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 2268 -o -name '*.lex.c' -o -name '*.tab.[ch]' \ 2269 -o -name '*.asn1.[ch]' \ 2270 -o -name '*.symtypes' -o -name 'modules.order' \ 2271 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 2272 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \ 2273 -o -name 'dsdt_generated.c' \ 2274 -o -name 'generated_defconfig' \ 2275 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \ 2276 -type f -print | xargs rm -f 2277 2278# mrproper - Delete all generated files, including .config 2279# 2280mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 2281mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 2282mrproper-dirs := $(addprefix _mrproper_,scripts) 2283 2284PHONY += $(mrproper-dirs) mrproper archmrproper 2285$(mrproper-dirs): 2286 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 2287 2288mrproper: clean $(mrproper-dirs) 2289 $(call cmd,rmdirs) 2290 $(call cmd,rmfiles) 2291 @rm -f arch/*/include/asm/arch 2292 2293# distclean 2294# 2295PHONY += distclean 2296 2297distclean: mrproper 2298 @find $(srctree) $(RCS_FIND_IGNORE) \ 2299 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 2300 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 2301 -o -name '.*.rej' -o -name '*%' -o -name 'core' \ 2302 -o -name '*.pyc' \) \ 2303 -type f -print | xargs rm -f 2304 @rm -f boards.cfg CHANGELOG 2305 2306# See doc/develop/python_cq.rst 2307PHONY += pylint pylint_err 2308PYLINT_BASE := scripts/pylint.base 2309PYLINT_CUR := pylint.cur 2310PYLINT_DIFF := pylint.diff 2311pylint: 2312 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)" 2313 $(Q)mkdir -p pylint.out 2314 $(Q)rm -f pylint.out/out* 2315 $(Q)find tools test -name "*.py" \ 2316 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \ 2317 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _ 2318 $(Q)rm -f $(PYLINT_CUR) 2319 $(Q)( cd pylint.out; for f in *; do \ 2320 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \ 2321 done ) | sort > $(PYLINT_CUR) 2322 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \ 2323 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \ 2324 comm -3 $$base $$cur > $(PYLINT_DIFF); \ 2325 if [ -s $(PYLINT_DIFF) ]; then \ 2326 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \ 2327 echo; \ 2328 echo "Added files:"; \ 2329 comm -13 $$base $$cur; \ 2330 echo; \ 2331 echo "Removed files:"; \ 2332 comm -23 $$base $$cur; \ 2333 false; \ 2334 else \ 2335 rm $$base $$cur $(PYLINT_DIFF); \ 2336 fi 2337 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \ 2338 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \ 2339 echo "$$base_file: Score was $$base_val, now $$cur_val"; \ 2340 bad=true; fi; \ 2341 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \ 2342 if $$bad; then \ 2343 echo "Some files have regressed, please fix"; \ 2344 false; \ 2345 else \ 2346 echo "No pylint regressions"; \ 2347 fi 2348 2349# Check for errors only 2350pylint_err: 2351 $(Q)pylint -E -j 0 --ignore-imports=yes \ 2352 $(shell find tools test -name "*.py") 2353 2354backup: 2355 F=`basename $(srctree)` ; cd .. ; \ 2356 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F 2357 2358PHONY += _pip pip pip_release 2359 2360pip_release: PIP_ARGS="--real" 2361pip_test: PIP_ARGS="" 2362pip: PIP_ARGS="-n" 2363 2364pip pip_test pip_release: _pip 2365 2366_pip: 2367 scripts/make_pip.sh u_boot_pylib ${PIP_ARGS} 2368 scripts/make_pip.sh patman ${PIP_ARGS} 2369 scripts/make_pip.sh buildman ${PIP_ARGS} 2370 scripts/make_pip.sh dtoc ${PIP_ARGS} 2371 scripts/make_pip.sh binman ${PIP_ARGS} 2372 2373help: 2374 @echo 'Cleaning targets:' 2375 @echo ' clean - Remove most generated files but keep the config' 2376 @echo ' mrproper - Remove all generated files + config + various backup files' 2377 @echo ' distclean - mrproper + remove editor backup and patch files' 2378 @echo '' 2379 @echo 'Configuration targets:' 2380 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 2381 @echo '' 2382 @echo 'Test targets:' 2383 @echo '' 2384 @echo ' check - Run all automated tests that use sandbox' 2385 @echo ' pcheck - Run quick automated tests in parallel' 2386 @echo ' qcheck - Run quick automated tests that use sandbox' 2387 @echo ' tcheck - Run quick automated tests on tools' 2388 @echo ' pylint - Run pylint on all Python files' 2389 @echo '' 2390 @echo 'Other generic targets:' 2391 @echo ' all - Build all necessary images depending on configuration' 2392 @echo ' tests - Build U-Boot for sandbox and run tests' 2393 @echo '* u-boot - Build the bare u-boot' 2394 @echo ' dir/ - Build all files in dir and below' 2395 @echo ' dir/file.[oisS] - Build specified target only' 2396 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 2397 @echo ' (requires a recent binutils and recent build (System.map))' 2398 @echo ' tags/ctags - Generate ctags file for editors' 2399 @echo ' etags - Generate etags file for editors' 2400 @echo ' cscope - Generate cscope index' 2401 @echo ' ubootrelease - Output the release version string (use with make -s)' 2402 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)' 2403 @echo " cfg - Don't build, just create the .cfg files" 2404 @echo " envtools - Build only the target-side environment tools" 2405 @echo '' 2406 @echo 'PyPi / pip targets:' 2407 @echo ' pip - Check building of PyPi packages' 2408 @echo ' pip_test - Build PyPi pakages and upload to test server' 2409 @echo ' pip_release - Build PyPi pakages and upload to release server' 2410 @echo '' 2411 @echo 'Static analysers' 2412 @echo ' checkstack - Generate a list of stack hogs' 2413 @echo ' coccicheck - Execute static code analysis with Coccinelle' 2414 @echo '' 2415 @echo 'Documentation targets:' 2416 @$(MAKE) -f $(srctree)/doc/Makefile dochelp 2417 @echo '' 2418 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 2419 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 2420 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 2421 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 2422 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 2423 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 2424 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 2425 @echo ' 1: warnings which may be relevant and do not occur too often' 2426 @echo ' 2: warnings which occur quite often but may still be relevant' 2427 @echo ' 3: more obscure warnings, can most likely be ignored' 2428 @echo ' Multiple levels can be combined with W=12 or W=123' 2429 @echo '' 2430 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 2431 @echo 'For further info see the ./README file' 2432 2433tests check: 2434 $(srctree)/test/run 2435 2436pcheck: 2437 $(srctree)/test/run parallel 2438 2439qcheck: 2440 $(srctree)/test/run quick 2441 2442tcheck: 2443 $(srctree)/test/run tools 2444 2445# Documentation targets 2446# --------------------------------------------------------------------------- 2447DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \ 2448 linkcheckdocs dochelp refcheckdocs texinfodocs infodocs 2449PHONY += $(DOC_TARGETS) 2450$(DOC_TARGETS): scripts_basic FORCE 2451 $(Q)PYTHONPATH=$(srctree)/test/py/tests:$(srctree)/test/py \ 2452 $(MAKE) $(build)=doc $@ 2453 2454PHONY += checkstack ubootrelease ubootversion 2455 2456checkstack: 2457 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \ 2458 $(PERL) $(src)/scripts/checkstack.pl $(ARCH) 2459 2460ubootrelease: 2461 @$(filechk_uboot.release) 2462 2463ubootversion: 2464 @echo $(UBOOTVERSION) 2465 2466# Single targets 2467# --------------------------------------------------------------------------- 2468# Single targets are compatible with: 2469# - build with mixed source and output 2470# - build with separate output dir 'make O=...' 2471# - external modules 2472# 2473# target-dir => where to store outputfile 2474# build-dir => directory in kernel source tree to use 2475 2476ifeq ($(KBUILD_EXTMOD),) 2477 build-dir = $(patsubst %/,%,$(dir $@)) 2478 target-dir = $(dir $@) 2479else 2480 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 2481 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 2482 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 2483endif 2484 2485%.s: %.c prepare scripts FORCE 2486 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2487%.i: %.c prepare scripts FORCE 2488 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2489%.o: %.c prepare scripts FORCE 2490 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2491%.lst: %.c prepare scripts FORCE 2492 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2493%.s: %.S prepare scripts FORCE 2494 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2495%.o: %.S prepare scripts FORCE 2496 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2497%.symtypes: %.c prepare scripts FORCE 2498 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 2499 2500# Modules 2501/: prepare scripts FORCE 2502 $(cmd_crmodverdir) 2503 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2504 $(build)=$(build-dir) 2505%/: prepare scripts FORCE 2506 $(cmd_crmodverdir) 2507 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2508 $(build)=$(build-dir) 2509%.ko: prepare scripts FORCE 2510 $(cmd_crmodverdir) 2511 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 2512 $(build)=$(build-dir) $(@:.ko=.o) 2513 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 2514 2515quiet_cmd_genenv = GENENV $@ 2516cmd_genenv = \ 2517 $(objtree)/tools/printinitialenv | \ 2518 sed -e '/^\s*$$/d' | \ 2519 sort -t '=' -k 1,1 -s -o $@ 2520 2521u-boot-initial-env: scripts_basic $(version_h) $(env_h) include/config.h FORCE 2522 $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv 2523 $(call if_changed,genenv) 2524 2525# Consistency checks 2526# --------------------------------------------------------------------------- 2527 2528PHONY += coccicheck 2529 2530coccicheck: 2531 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 2532 2533# FIXME Should go into a make.lib or something 2534# =========================================================================== 2535 2536quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 2537 cmd_rmdirs = rm -rf $(rm-dirs) 2538 2539quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 2540 cmd_rmfiles = rm -f $(rm-files) 2541 2542# read all saved command lines 2543 2544cmd_files := $(wildcard .*.cmd) 2545 2546ifneq ($(cmd_files),) 2547 $(cmd_files): ; # Do not try to update included dependency files 2548 include $(cmd_files) 2549endif 2550 2551endif #ifeq ($(config-targets),1) 2552endif #ifeq ($(mixed-targets),1) 2553endif # skip-makefile 2554 2555PHONY += FORCE 2556FORCE: 2557 2558# Declare the contents of the PHONY variable as phony. We keep that 2559# information in a variable so we can use it in if_changed and friends. 2560.PHONY: $(PHONY) 2561