1 # SPDX-License-Identifier: GPL-2.0+
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.
15 # Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour)
19 # Determine target architecture for the sandbox
20 include include/host_arch.h
21 ifeq ("", "$(CROSS_COMPILE)")
22 MK_ARCH="${shell uname -m}"
24 MK_ARCH="${shell echo $(CROSS_COMPILE) | sed -n 's/^[[:space:]]*\([^\/]*\/\)*\([^-]*\)-[^[:space:]]*/\2/p'}"
27 ifeq ("x86_64", $(MK_ARCH))
28 export HOST_ARCH=$(HOST_ARCH_X86_64)
29 else ifneq (,$(findstring $(MK_ARCH), "i386" "i486" "i586" "i686"))
30 export HOST_ARCH=$(HOST_ARCH_X86)
31 else ifneq (,$(findstring $(MK_ARCH), "aarch64" "armv8l"))
32 export HOST_ARCH=$(HOST_ARCH_AARCH64)
33 else ifneq (,$(findstring $(MK_ARCH), "arm" "armv7" "armv7a" "armv7l"))
34 export HOST_ARCH=$(HOST_ARCH_ARM)
35 else ifeq ("riscv32", $(MK_ARCH))
36 export HOST_ARCH=$(HOST_ARCH_RISCV32)
37 else ifeq ("riscv64", $(MK_ARCH))
38 export HOST_ARCH=$(HOST_ARCH_RISCV64)
42 # Avoid funny character set dependencies
46 export LC_COLLATE LC_NUMERIC
48 # Avoid interference with shell env settings
51 # We are using a recursive build, so we need to do a little thinking
52 # to get the ordering right.
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
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
68 # ---------------------------------------------------------------------------
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.
74 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
75 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
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.
82 # A simple variant is to prefix commands with $(Q) - that's useful
83 # for commands that shall be hidden in non-verbose mode.
87 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
88 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
90 # To put more focus on warnings, be less verbose as default
91 # Use 'make V=1' to see the full commands
93 ifeq ("$(origin V)", "command line")
100 ifeq ($(KBUILD_VERBOSE),1)
108 # If the user is running make -s (silent mode), suppress echoing of
111 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
112 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
116 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
121 export quiet Q KBUILD_VERBOSE
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.
127 # Use "make O=dir/to/store/output/files/"
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/
135 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
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)
140 ifeq ($(KBUILD_SRC),)
142 # OK, Make called in directory where kernel src resides
143 # Do we want to locate output files in a separate directory?
144 ifeq ("$(origin O)", "command line")
145 KBUILD_OUTPUT := $(O)
148 # That's our default target when none is given on the command line
152 # Cancel implicit rules on top Makefile
153 $(CURDIR)/Makefile Makefile: ;
155 ifneq ($(KBUILD_OUTPUT),)
156 # Invoke a second make in the output directory, passing relevant variables
157 # check that the output directory actually exists
158 saved-output := $(KBUILD_OUTPUT)
159 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
161 $(if $(KBUILD_OUTPUT),, \
162 $(error failed to create output directory "$(saved-output)"))
164 # Look for make include files relative to root of kernel src
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
169 MAKEFLAGS += --include-dir=$(CURDIR)
171 PHONY += $(MAKECMDGOALS) sub-make
173 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
177 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
178 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
180 # Leave processing to above invocation of make
182 endif # ifneq ($(KBUILD_OUTPUT),)
183 endif # ifeq ($(KBUILD_SRC),)
185 # We process the rest of the Makefile if this is the final invocation of make
186 ifeq ($(skip-makefile),)
188 # Do not print "Entering directory ...",
189 # but we want to display it when entering to the output directory
190 # so that IDEs/editors are able to understand relative filenames.
191 MAKEFLAGS += --no-print-directory
193 # Call a source code checker (by default, "sparse") as part of the
196 # Use 'make C=1' to enable checking of only re-compiled files.
197 # Use 'make C=2' to enable checking of *all* source files, regardless
198 # of whether they are re-compiled or not.
200 # See the file "doc/sparse.txt" for more details, including
201 # where to get the "sparse" utility.
203 ifeq ("$(origin C)", "command line")
204 KBUILD_CHECKSRC = $(C)
206 ifndef KBUILD_CHECKSRC
210 # Use make M=dir to specify directory of external module to build
211 # Old syntax make ... SUBDIRS=$PWD is still supported
212 # Setting the environment variable KBUILD_EXTMOD take precedence
214 KBUILD_EXTMOD ?= $(SUBDIRS)
217 ifeq ("$(origin M)", "command line")
218 KBUILD_EXTMOD := $(M)
221 # If building an external module we do not care about the all: rule
222 # but instead _all depend on modules
224 ifeq ($(KBUILD_EXTMOD),)
230 ifeq ($(KBUILD_SRC),)
231 # building in the source tree
234 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
235 # building in a subdirectory of the source tree
238 srctree := $(KBUILD_SRC)
245 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
247 export srctree objtree VPATH
249 # Make sure CDPATH settings don't interfere
252 #########################################################################
254 HOSTARCH := $(shell uname -m | \
256 -e s/sun4u/sparc64/ \
259 -e s/ppc64/powerpc/ \
261 -e s/macppc/powerpc/\
264 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
265 sed -e 's/\(cygwin\).*/cygwin/')
267 export HOSTARCH HOSTOS
269 #########################################################################
271 # set default to nothing for native builds
272 ifeq ($(HOSTARCH),$(ARCH))
276 KCONFIG_CONFIG ?= .config
277 export KCONFIG_CONFIG
279 # SHELL used by kbuild
280 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
281 else if [ -x /bin/bash ]; then echo /bin/bash; \
282 else echo sh; fi ; fi)
284 HOST_LFS_CFLAGS := $(shell getconf LFS_CFLAGS 2>/dev/null)
285 HOST_LFS_LDFLAGS := $(shell getconf LFS_LDFLAGS 2>/dev/null)
286 HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
290 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
291 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
292 KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
293 KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
294 KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
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).
301 CSTD_FLAG := -std=gnu11
302 KBUILD_HOSTCFLAGS += $(CSTD_FLAG)
304 ifeq ($(HOSTOS),cygwin)
305 KBUILD_HOSTCFLAGS += -ansi
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.
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.
319 ifeq ($(HOSTOS),darwin)
320 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
321 DARWIN_MAJOR_VERSION := $(shell sw_vers -productVersion | cut -f 1 -d '.')
322 DARWIN_MINOR_VERSION := $(shell sw_vers -productVersion | cut -f 2 -d '.')
324 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
325 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
327 os_x_after = $(shell if [ $(DARWIN_MAJOR_VERSION) -ge $(1) -a \
328 $(DARWIN_MINOR_VERSION) -ge $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
330 # Snow Leopards build environment has no longer restrictions as described above
331 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
332 KBUILD_HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
333 KBUILD_HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
335 # macOS Mojave (10.14.X)
336 # Undefined symbols for architecture x86_64: "_PyArg_ParseTuple"
337 KBUILD_HOSTLDFLAGS += $(call os_x_after, 10, 14, "-lpython -dynamclib", "")
340 # Decide whether to build built-in, modular, or both.
341 # Normally, just do built-in.
346 # If we have only "make modules", don't compile built-in objects.
347 # When we're building modules with modversions, we need to consider
348 # the built-in objects during the descend as well, in order to
349 # make sure the checksums are up to date before we record them.
351 ifeq ($(MAKECMDGOALS),modules)
352 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
355 # If we have "make <whatever> modules", compile modules
356 # in addition to whatever we do anyway.
357 # Just "make" or "make all" shall build modules as well
359 # U-Boot does not need modules
360 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
361 # KBUILD_MODULES := 1
364 #ifeq ($(MAKECMDGOALS),)
365 # KBUILD_MODULES := 1
368 # Check ths size of a binary:
371 # #2: Size limit in bytes (decimal or 0xhex)
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;\
385 export KBUILD_MODULES KBUILD_BUILTIN
386 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
388 # We need some generic definitions (do not try to remake the file).
389 scripts/Kbuild.include: ;
390 include scripts/Kbuild.include
392 # Make variables (CC, etc...)
394 AS = $(CROSS_COMPILE)as
396 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
397 LD = $(CROSS_COMPILE)ld.bfd
399 LD = $(CROSS_COMPILE)ld
401 CC = $(CROSS_COMPILE)gcc
403 AR = $(CROSS_COMPILE)ar
404 NM = $(CROSS_COMPILE)nm
405 LDR = $(CROSS_COMPILE)ldr
406 STRIP = $(CROSS_COMPILE)strip
407 OBJCOPY = $(CROSS_COMPILE)objcopy
408 OBJDUMP = $(CROSS_COMPILE)objdump
417 # The devicetree compiler and pylibfdt are automatically built unless DTC is
418 # provided. If DTC is provided, it is assumed the pylibfdt is available too.
419 DTC_INTREE := $(objtree)/scripts/dtc/dtc
421 DTC_MIN_VERSION := 010406
425 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
426 -Wbitwise -Wno-return-void -Wno-unknown-attribute \
427 -D__CHECK_ENDIAN__ $(CF)
429 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
431 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
432 -Wno-format-security \
433 -fno-builtin -ffreestanding $(CSTD_FLAG)
434 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
435 KBUILD_AFLAGS := -D__ASSEMBLY__
438 ifeq ($(cc-name),clang)
439 ifneq ($(CROSS_COMPILE),)
440 CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%))
441 LDPPFLAGS += $(CLANG_TARGET)
442 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
443 CLANG_PREFIX := --prefix=$(GCC_TOOLCHAIN_DIR)
444 GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)
446 ifneq ($(GCC_TOOLCHAIN),)
447 CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
449 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
450 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX)
451 KBUILD_CFLAGS += $(call cc-option, -no-integrated-as)
452 KBUILD_AFLAGS += $(call cc-option, -no-integrated-as)
455 # Don't generate position independent code
456 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
457 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
459 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
460 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
461 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
463 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
464 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
465 export CONFIG_SHELL HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE AS LD CC
466 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS
467 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
468 export HOSTCXX KBUILD_HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
470 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS KBUILD_LDFLAGS
471 export KBUILD_CFLAGS KBUILD_AFLAGS
473 export CC_VERSION_TEXT := $(shell $(CC) --version | head -n 1)
475 # When compiling out-of-tree modules, put MODVERDIR in the module
476 # tree rather than in the kernel tree. The kernel tree might
478 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
480 # Files to ignore in find ... statements
482 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
483 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
485 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
486 --exclude CVS --exclude .pc --exclude .hg --exclude .git
490 # This is y if U-Boot should not build any Python tools or libraries. Typically
491 # you would need to set this if those tools/libraries (typically binman and
492 # pylibfdt) cannot be built by your environment and are provided separately.
497 # ===========================================================================
498 # Rules shared between *config targets and build targets
500 # Basic helpers built in scripts/
501 PHONY += scripts_basic
503 $(Q)$(MAKE) $(build)=scripts/basic
504 $(Q)rm -f .tmp_quiet_recordmcount
506 # To avoid any implicit rule to kick in, define an empty command.
507 scripts/basic/%: scripts_basic ;
509 PHONY += outputmakefile
510 # outputmakefile generates a Makefile in the output directory, if using a
511 # separate output directory. This allows convenient use of make in the
514 ifneq ($(KBUILD_SRC),)
515 $(Q)ln -fsn $(srctree) source
516 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile $(srctree)
519 # To make sure we do not include .config for any of the *config targets
520 # catch them early, and hand them over to scripts/kconfig/Makefile
521 # It is allowed to specify more targets when calling make, including
522 # mixing *config targets and build targets.
523 # For example 'make oldconfig all'.
524 # Detect when mixed targets is specified, and make a second invocation
525 # of make so .config is not included in this case either (for *config).
527 version_h := include/generated/version_autogenerated.h
528 timestamp_h := include/generated/timestamp_autogenerated.h
529 defaultenv_h := include/generated/defaultenv_autogenerated.h
530 dt_h := include/generated/dt.h
531 env_h := include/generated/environment.h
533 no-dot-config-targets := clean clobber mrproper distclean \
534 help %docs check% coccicheck \
535 ubootversion backup tests check pcheck qcheck tcheck \
536 pylint pylint_err _pip pip pip_test pip_release
542 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
543 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
548 ifeq ($(KBUILD_EXTMOD),)
549 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
551 ifneq ($(words $(MAKECMDGOALS)),1)
557 ifeq ($(mixed-targets),1)
558 # ===========================================================================
559 # We're called with mixed targets (*config and build targets).
560 # Handle them one by one.
562 PHONY += $(MAKECMDGOALS) __build_one_by_one
564 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
569 for i in $(MAKECMDGOALS); do \
570 $(MAKE) -f $(srctree)/Makefile $$i; \
574 ifeq ($(config-targets),1)
575 # ===========================================================================
576 # *config targets only - make sure prerequisites are updated, and descend
577 # in scripts/kconfig to make the *config target
579 KBUILD_DEFCONFIG := sandbox_defconfig
580 export KBUILD_DEFCONFIG KBUILD_KCONFIG
582 config: scripts_basic outputmakefile FORCE
583 $(Q)$(MAKE) $(build)=scripts/kconfig $@
585 %config: scripts_basic outputmakefile FORCE
586 $(Q)$(MAKE) $(build)=scripts/kconfig $@
589 # ===========================================================================
590 # Build targets only - this includes vmlinux, arch specific targets, clean
591 # targets and others. In general all targets except *config targets.
593 # Additional helpers built in scripts/
594 # Carefully list dependencies so we do not try to build scripts twice
597 scripts: scripts_basic scripts_dtc include/config/auto.conf
598 $(Q)$(MAKE) $(build)=$(@)
600 ifeq ($(dot-config),1)
602 -include include/config/auto.conf
604 # Read in dependencies to all Kconfig* files, make sure to run
605 # oldconfig if changes are detected.
606 -include include/config/auto.conf.cmd
608 # To avoid any implicit rule to kick in, define an empty command
609 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
611 # If .config is newer than include/config/auto.conf, someone tinkered
612 # with it and forgot to run make oldconfig.
613 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
614 # we execute the config step to be sure to catch updated Kconfig files
615 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
616 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
617 @# If the following part fails, include/config/auto.conf should be
618 @# deleted so "make silentoldconfig" will be re-run on the next build.
619 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
620 { rm -f include/config/auto.conf; false; }
621 @# include/config.h has been updated after "make silentoldconfig".
622 @# We need to touch include/config/auto.conf so it gets newer
623 @# than include/config.h.
624 @# Otherwise, 'make silentoldconfig' would be invoked twice.
625 $(Q)touch include/config/auto.conf
627 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg vpl/u-boot.cfg:
628 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
630 -include include/autoconf.mk
631 -include include/autoconf.mk.dep
633 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
634 # is up-to-date. When we switch to a different board configuration, old CONFIG
635 # macros are still remaining in include/config/auto.conf. Without the following
636 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
637 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
638 ifneq ($(wildcard include/config/auto.conf),)
639 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
640 include/config/auto.conf)
641 ifeq ($(autoconf_is_old),)
643 include arch/$(ARCH)/Makefile
648 # These are set by the arch-specific config.mk. Make sure they are exported
649 # so they can be used when building an EFI application.
650 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
651 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
652 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
653 export CFLAGS_EFI # Compiler flags to add when building EFI app
654 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
655 export EFI_TARGET # binutils target if EFI is natively supported
659 # This is y if LTO is enabled for this build. See NO_LTO=1 to disable LTO
661 LTO_ENABLE=$(if $(CONFIG_LTO),y)
664 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
665 # that (or fail if absent). Otherwise, search for a linker script in a
669 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
670 ifdef CONFIG_SYS_LDSCRIPT
671 # need to strip off double quotes
672 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
676 # If there is no specified link script, we look in a number of places for it
678 ifeq ($(wildcard $(LDSCRIPT)),)
679 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
681 ifeq ($(wildcard $(LDSCRIPT)),)
682 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
684 ifeq ($(wildcard $(LDSCRIPT)),)
685 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
690 # Dummy target needed, because used as prerequisite
691 include/config/auto.conf: ;
692 endif # $(dot-config)
694 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
695 KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
696 $(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
697 # Avoid false positives -Wmaybe-uninitialized
698 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
699 KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized
700 KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
704 # Xtensa linker script cannot be preprocessed with -ansi because of
705 # preprocessor operations on strings that don't make C identifiers.
707 ifeq ($(CONFIG_XTENSA),)
711 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
715 ifdef CONFIG_CC_OPTIMIZE_FOR_SPEED
719 ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
721 # Avoid false positives -Wmaybe-uninitialized
722 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
723 KBUILD_CFLAGS += -Wno-maybe-uninitialized
728 export LTO_CFLAGS LTO_FINAL_LDFLAGS
729 ifeq ($(LTO_ENABLE),y)
730 ifeq ($(cc-name),clang)
731 LTO_CFLAGS += -DLTO_ENABLE -flto
732 LTO_FINAL_LDFLAGS += -flto
734 AR = $(shell $(CC) -print-prog-name=llvm-ar)
735 NM = $(shell $(CC) -print-prog-name=llvm-nm)
737 NPROC := $(shell nproc 2>/dev/null || echo 1)
738 LTO_CFLAGS += -DLTO_ENABLE -flto=$(NPROC)
739 LTO_FINAL_LDFLAGS += -fuse-linker-plugin -flto=$(NPROC)
741 # use plugin aware tools
742 AR = $(CROSS_COMPILE)gcc-ar
743 NM = $(CROSS_COMPILE)gcc-nm
746 CFLAGS_NON_EFI += $(LTO_CFLAGS)
748 KBUILD_CFLAGS += $(LTO_CFLAGS)
751 ifeq ($(CONFIG_STACKPROTECTOR),y)
752 KBUILD_CFLAGS += $(call cc-option,-fstack-protector-strong)
753 KBUILD_CFLAGS += $(call cc-option,-mstack-protector-guard=global)
754 CFLAGS_EFI += $(call cc-option,-fno-stack-protector)
756 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
758 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
760 # disable pointer signed / unsigned warnings in gcc 4.0
761 KBUILD_CFLAGS += -Wno-pointer-sign
763 # disable stringop warnings in gcc 8+
764 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-truncation)
766 KBUILD_CFLAGS += $(call cc-disable-warning, zero-length-bounds)
767 KBUILD_CFLAGS += $(call cc-disable-warning, array-bounds)
768 KBUILD_CFLAGS += $(call cc-disable-warning, stringop-overflow)
770 # Enabled with W=2, disabled by default as noisy
771 KBUILD_CFLAGS += $(call cc-disable-warning, maybe-uninitialized)
773 # change __FILE__ to the relative path from the srctree
774 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
776 KBUILD_CFLAGS += -gdwarf-4
777 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
778 # option to the assembler.
779 KBUILD_AFLAGS += -gdwarf-4
781 # Report stack usage if supported
782 # ARC tools based on GCC 7.1 has an issue with stack usage
783 # with naked functions, see commit message for more details
785 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
786 KBUILD_CFLAGS += -fstack-usage
790 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
791 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
793 ifdef CONFIG_CC_IS_CLANG
794 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
795 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
796 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
797 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
798 # Quiet clang warning: comparison of unsigned expression < 0 is always false
799 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
800 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
801 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
802 # See modpost pattern 2
803 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
804 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
805 KBUILD_CFLAGS += $(call cc-disable-warning, deprecated-non-prototype)
808 # These warnings generated too much noise in a regular build.
809 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
810 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
812 # Prohibit date/time macros, which would make the build non-deterministic
813 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
815 include scripts/Makefile.extrawarn
817 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
818 KBUILD_CPPFLAGS += $(KCPPFLAGS)
819 KBUILD_AFLAGS += $(KAFLAGS)
820 KBUILD_CFLAGS += $(KCFLAGS)
822 KBUILD_LDFLAGS += -z noexecstack
823 KBUILD_LDFLAGS += $(call ld-option,--no-warn-rwx-segments)
825 KBUILD_HOSTCFLAGS += $(if $(CONFIG_TOOLS_DEBUG),-g)
827 # Use UBOOTINCLUDE when you must reference the include/ directory.
828 # Needed to be compatible with the O= option
831 $(if $(KBUILD_SRC), -I$(srctree)/include) \
832 $(if $(CONFIG_MBEDTLS_LIB), \
833 "-DMBEDTLS_CONFIG_FILE=\"mbedtls_def_config.h\"" \
834 -I$(srctree)/lib/mbedtls \
835 -I$(srctree)/lib/mbedtls/port \
836 -I$(srctree)/lib/mbedtls/external/mbedtls \
837 -I$(srctree)/lib/mbedtls/external/mbedtls/include) \
838 $(if $(CONFIG_$(XPL_)SYS_THUMB_BUILD), \
839 $(if $(CONFIG_HAS_THUMB2), \
840 $(if $(CONFIG_CPU_V7M), \
841 -I$(srctree)/arch/arm/thumb1/include), \
842 -I$(srctree)/arch/arm/thumb1/include)) \
843 -I$(srctree)/arch/$(ARCH)/include \
844 -include $(srctree)/include/linux/kconfig.h \
845 -I$(srctree)/dts/upstream/include \
846 $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \
847 -I$(srctree)/lib/lwip/u-boot)
849 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
852 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
854 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
856 #########################################################################
857 # U-Boot objects....order is important (i.e. start must be first)
859 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
861 libs-$(CONFIG_API) += api/
862 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
864 libs-$(CONFIG_CMDLINE) += cmd/
866 libs-$(CONFIG_OF_EMBED) += dts/
870 libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/
873 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
874 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
875 libs-$(CONFIG_$(XPL_)ALTERA_SDRAM) += drivers/ddr/altera/
876 libs-y += drivers/usb/cdns3/
877 libs-y += drivers/usb/dwc3/
878 libs-y += drivers/usb/common/
879 libs-y += drivers/usb/emul/
880 libs-y += drivers/usb/eth/
881 libs-$(CONFIG_USB_DEVICE) += drivers/usb/gadget/
882 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/
883 libs-$(CONFIG_USB_GADGET) += drivers/usb/gadget/udc/
884 libs-y += drivers/usb/host/
885 libs-y += drivers/usb/mtu3/
886 libs-y += drivers/usb/musb/
887 libs-y += drivers/usb/musb-new/
888 libs-y += drivers/usb/isp1760/
889 libs-y += drivers/usb/phy/
890 libs-y += drivers/usb/tcpm/
891 libs-y += drivers/usb/ulpi/
895 libs-$(CONFIG_$(PHASE_)UNIT_TEST) += test/
896 libs-$(CONFIG_UT_ENV) += test/env/
897 libs-$(CONFIG_UT_OPTEE) += test/optee/
898 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
900 libs-y += $(if $(wildcard $(srctree)/board/$(BOARDDIR)/Makefile),board/$(BOARDDIR)/)
902 libs-y := $(sort $(libs-y))
904 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
906 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
908 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
910 u-boot-init := $(head-y)
911 u-boot-main := $(libs-y)
915 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
916 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
918 ifndef CONFIG_CC_IS_CLANG
919 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
922 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
924 ifdef CONFIG_CC_COVERAGE
925 KBUILD_CFLAGS += --coverage
926 PLATFORM_LIBGCC += -lgcov
930 export PLATFORM_LIBGCC
932 # Special flags for CPP when processing the linker script.
933 # Pass the version down so we can handle backwards compatibility
936 -include $(srctree)/include/u-boot/u-boot.lds.h \
938 $(shell $(LD) --version | \
939 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
941 #########################################################################
942 #########################################################################
944 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
945 BOARD_SIZE_CHECK= @ $(call size_check,$@,$(CONFIG_BOARD_SIZE_LIMIT))
950 ifneq ($(CONFIG_SPL_SIZE_LIMIT),0x0)
951 SPL_SIZE_CHECK = @$(call size_check,$@,$$(tools/spl_size_limit))
956 ifneq ($(CONFIG_TPL_SIZE_LIMIT),0x0)
957 TPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_TPL_SIZE_LIMIT))
962 ifneq ($(CONFIG_VPL_SIZE_LIMIT),0x0)
963 VPL_SIZE_CHECK = @$(call size_check,$@,$(CONFIG_VPL_SIZE_LIMIT))
968 # Statically apply RELA-style relocations (currently arm64 only)
969 # This is useful for arm64 where static relocation needs to be performed on
970 # the raw binary, but certain simulators only accept an ELF file (but don't
971 # do the relocation).
972 ifneq ($(CONFIG_STATIC_RELA),)
973 # $(2) is u-boot ELF, $(3) is u-boot bin, $(4) is text base
974 quiet_cmd_static_rela = RELOC $@
976 tools/relocate-rela $(3) $(2)
978 quiet_cmd_static_rela =
982 # Always append INPUTS so that arch config.mk's can add custom ones
983 INPUTS-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
985 ifeq ($(CONFIG_SPL_FSL_PBL),y)
986 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
988 ifneq ($(CONFIG_NXP_ESBC), y)
989 # For Secure Boot The Image needs to be signed and Header must also
990 # be included. So The image has to be built explicitly
991 INPUTS-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
994 INPUTS-$(CONFIG_SPL) += spl/u-boot-spl.bin
995 ifeq ($(CONFIG_MX6)$(CONFIG_IMX_HAB), yy)
996 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
998 ifeq ($(CONFIG_MX7)$(CONFIG_IMX_HAB), yy)
999 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
1001 INPUTS-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
1004 INPUTS-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
1005 INPUTS-$(CONFIG_VPL) += vpl/u-boot-vpl.bin
1007 # Allow omitting the .dtb output if it is not normally used
1008 INPUTS-$(CONFIG_OF_SEPARATE) += $(if $(CONFIG_OF_OMIT_DTB),dts/dt.dtb,u-boot.dtb)
1009 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
1010 INPUTS-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
1012 INPUTS-$(CONFIG_SANDBOX) += u-boot.dtb
1013 ifneq ($(CONFIG_SPL_TARGET),)
1014 INPUTS-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
1016 INPUTS-$(CONFIG_REMAKE_ELF) += u-boot.elf
1017 INPUTS-$(CONFIG_EFI_APP) += u-boot-app.efi
1018 INPUTS-$(CONFIG_EFI_STUB) += u-boot-payload.efi
1020 # Generate this input file for binman
1021 ifeq ($(CONFIG_SPL),)
1022 INPUTS-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
1025 # Add optional build target if defined in board/cpu/soc headers
1026 ifneq ($(CONFIG_BUILD_TARGET),)
1027 INPUTS-y += $(CONFIG_BUILD_TARGET:"%"=%)
1030 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1031 INPUTS-y += init_sp_bss_offset_check
1034 ifeq ($(CONFIG_ARCH_ROCKCHIP)_$(CONFIG_SPL_FRAMEWORK),y_)
1035 INPUTS-y += u-boot.img
1038 INPUTS-$(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)
1042 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
1044 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
1045 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
1048 LDFLAGS_u-boot += -z notext $(call ld-option,--apply-dynamic-relocs)
1050 LDFLAGS_u-boot += --build-id=none
1052 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
1053 LDFLAGS_u-boot += -Ttext $(CONFIG_TEXT_BASE)
1056 # make the checker run with the right architecture
1057 CHECKFLAGS += --arch=$(ARCH)
1059 # insure the checker run with the right endianness
1060 CHECKFLAGS += $(if $(CONFIG_SYS_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
1062 # the checker needs the correct machine size
1063 CHECKFLAGS += $(if $(CONFIG_64BIT),-m64,-m32)
1065 # Normally we fill empty space with 0xff
1066 quiet_cmd_objcopy = OBJCOPY $@
1067 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
1068 $(OBJCOPYFLAGS_$(@F)) $< $@
1070 # Provide a version which does not do this, for use by EFI
1071 quiet_cmd_zobjcopy = OBJCOPY $@
1072 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
1074 quiet_cmd_efipayload = OBJCOPY $@
1075 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
1077 MKIMAGEOUTPUT ?= /dev/null
1079 quiet_cmd_mkimage = MKIMAGE $@
1080 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
1081 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1083 quiet_cmd_mkfitimage = MKIMAGE $@
1084 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) \
1085 -f $(U_BOOT_ITS) -p $(CONFIG_FIT_EXTERNAL_OFFSET) $@ \
1086 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
1088 quiet_cmd_cat = CAT $@
1089 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
1091 append = cat $(filter-out $< $(PHONY), $^) >> $@
1093 quiet_cmd_pad_cat = CAT $@
1094 cmd_pad_cat = $(cmd_objcopy) && $(append) || { rm -f $@; false; }
1096 quiet_cmd_lzma = LZMA $@
1097 cmd_lzma = lzma -c -z -k -9 $< > $@
1101 quiet_cmd_ofcheck = OFCHK $2
1102 cmd_ofcheck = $(srctree)/scripts/check-of.sh $2 \
1103 $(srctree)/scripts/of_allowlist.txt
1105 # Concat the value of all the CONFIGs (result is 'y' or 'yy', etc. )
1106 got = $(foreach cfg,$(1),$($(cfg)))
1108 # expected value 'y for each one
1109 expect = $(foreach cfg,$(1),y)
1111 # Show a deprecation message
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!)
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 "===================================================="; \
1132 # Timestamp file to make sure that binman always runs
1133 .binman_stamp: $(INPUTS-y) FORCE
1134 ifeq ($(CONFIG_BINMAN),y)
1135 $(call if_changed,binman)
1141 ifeq ($(CONFIG_DEPRECATED),y)
1142 $(warning "You have deprecated configuration options enabled in your .config! Please check your configuration.")
1144 ifeq ($(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 "===================================================="
1152 ifneq ($(CONFIG_SPL_FIT_GENERATOR),)
1153 @echo >&2 "===================== WARNING ======================"
1154 @echo >&2 "This board uses CONFIG_SPL_FIT_GENERATOR. Please migrate"
1155 @echo >&2 "to binman instead, to avoid the proliferation of"
1156 @echo >&2 "arch-specific scripts with no tests."
1157 @echo >&2 "===================================================="
1159 $(call deprecated,CONFIG_WDT,DM watchdog,v2019.10,\
1160 $(CONFIG_WATCHDOG)$(CONFIG_HW_WATCHDOG))
1161 $(call deprecated,CONFIG_DM_I2C,I2C drivers,v2022.04,$(CONFIG_SYS_I2C_LEGACY))
1162 @# CFG_SYS_TIMER_RATE has brackets in it for some boards which
1163 @# confuses this rule. Use if() to send just a single character which
1164 @# is enable to tell 'deprecated' that one of these symbols exists
1165 $(call deprecated,CONFIG_TIMER,Timer drivers,v2023.01,$(if $(strip $(CFG_SYS_TIMER_RATE)$(CFG_SYS_TIMER_COUNTER)),x))
1166 $(call deprecated,CONFIG_DM_SERIAL,Serial drivers,v2023.04,$(CONFIG_SERIAL))
1167 @# Check that this build does not override OF_HAS_PRIOR_STAGE by
1168 @# disabling OF_BOARD.
1169 $(call cmd,ofcheck,$(KCONFIG_CONFIG))
1171 PHONY += dtbs dtbs_check
1174 dts/dt.dtb: dtbs_prepare u-boot
1175 $(Q)$(MAKE) $(build)=dts dtbs
1177 dtbs_prepare: prepare3
1179 ifneq ($(filter dtbs_check, $(MAKECMDGOALS)),)
1183 ifneq ($(CHECK_DTBS),)
1184 dtbs_prepare: dt_binding_check
1187 dtbs_check: dt_binding_check dtbs
1189 DT_BINDING_DIR := dts/upstream/Bindings
1190 dt_binding_check: scripts_dtc
1191 $(Q)$(MAKE) $(build)=$(DT_BINDING_DIR) $(DT_BINDING_DIR)/processed-schema.json
1193 quiet_cmd_copy = COPY $@
1196 ifeq ($(CONFIG_OF_UPSTREAM),y)
1197 ifeq ($(CONFIG_ARM64),y)
1198 dt_dir := dts/upstream/src/arm64
1200 dt_dir := dts/upstream/src/$(ARCH)
1203 dt_dir := arch/$(ARCH)/dts
1206 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1208 ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
1209 FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
1210 else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
1211 FINAL_DTB_CONTAINER = fit-dtb.blob.gz
1213 FINAL_DTB_CONTAINER = fit-dtb.blob
1216 fit-dtb.blob.gz: fit-dtb.blob
1219 fit-dtb.blob.lzo: fit-dtb.blob
1222 fit-dtb.blob: dts/dt.dtb FORCE
1223 $(call if_changed,mkimage)
1224 ifneq ($(SOURCE_DATE_EPOCH),)
1225 touch -d @$(SOURCE_DATE_EPOCH) fit-dtb.blob
1226 chmod 0600 fit-dtb.blob
1229 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1231 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1233 MKIMAGEFLAGS_fit-dtb.blob += -B 0x8
1236 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(EXT_DTB)
1237 $(call if_changed,cat)
1239 u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
1240 $(call if_changed,cat)
1243 u-boot.bin: u-boot-fit-dtb.bin FORCE
1244 $(call if_changed,copy)
1246 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1247 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1248 $(call if_changed,cat)
1251 else ifeq ($(CONFIG_OF_SEPARATE).$(CONFIG_OF_OMIT_DTB),y.)
1253 ifneq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1254 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1255 $(call if_changed,cat)
1258 u-boot.bin: u-boot-dtb.bin FORCE
1259 $(call if_changed,copy)
1262 u-boot.bin: u-boot-nodtb.bin FORCE
1263 $(call if_changed,copy)
1266 # we call Makefile in arch/arm/mach-imx which
1267 # has targets which are dependent on targets defined
1268 # here. make could not resolve them and we must ensure
1269 # that they are finished before calling imx targets
1270 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1271 IMX_DEPS = u-boot-fit-dtb.bin
1274 %.imx: $(IMX_DEPS) %.bin
1275 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1279 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1281 quiet_cmd_copy = COPY $@
1284 u-boot.dtb: dts/dt.dtb
1287 OBJCOPYFLAGS_u-boot.hex := -O ihex
1289 OBJCOPYFLAGS_u-boot.srec := -O srec
1291 u-boot.hex u-boot.srec: u-boot FORCE
1292 $(call if_changed,objcopy)
1294 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1296 u-boot-elf.srec: u-boot.elf FORCE
1297 $(call if_changed,objcopy)
1299 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1301 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1302 $(call if_changed,objcopy)
1305 $(Q)$(MAKE) $(build)=arch/arm/mach-renesas $@
1307 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1308 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1309 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),$(if $(CONFIG_OF_SEPARATE),-R .bootpg -R .resetvec))
1311 binary_size_check: u-boot-nodtb.bin FORCE
1312 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{ print $$1 }') ; \
1313 map_size=$(shell cat u-boot.map | \
1315 /_image_copy_start/ { start = $$1 } \
1316 /_image_binary_end/ { end = $$1 } \
1318 if (start != "" && end != "") \
1319 print end " " start; \
1321 | sh -c 'read end start && echo $$((end - start))'); \
1322 if [ -n "$$map_size" ]; then \
1323 if test $$map_size -ne $$file_size; then \
1324 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1325 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1330 ifeq ($(CONFIG_INIT_SP_RELATIVE)$(CONFIG_OF_SEPARATE),yy)
1331 ifneq ($(CONFIG_SYS_MALLOC_F),)
1332 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1334 subtract_sys_malloc_f_len = true
1336 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1337 # so low that the DTB could probably use 90%+ of the available space, for
1338 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1339 # safe for now and tweak this later if space becomes tight.
1340 # A rejected alternative would be to check that some absolute minimum stack
1341 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1342 # deliberately build-specific, to take account of build-to-build stack usage
1343 # differences due to different feature sets, there is no common absolute value
1345 init_sp_bss_offset_check: u-boot.dtb FORCE
1346 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1347 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1348 $(subtract_sys_malloc_f_len) ; \
1349 quarter_space=$$(($${space} / 4)) ; \
1350 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1351 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1352 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1357 shell_cmd = { $(call echo-cmd,$(1)) $(cmd_$(1)); }
1359 quiet_cmd_objcopy_uboot = OBJCOPY $@
1360 ifdef cmd_static_rela
1361 cmd_objcopy_uboot = $(cmd_objcopy) && $(call shell_cmd,static_rela,$<,$@,$(CONFIG_TEXT_BASE)) || { rm -f $@; false; }
1363 cmd_objcopy_uboot = $(cmd_objcopy)
1366 u-boot-nodtb.bin: u-boot FORCE
1367 $(call if_changed,objcopy_uboot)
1372 $(LDR) -T $(CONFIG_LDR_CPU) -c $@ $< $(LDR_FLAGS)
1376 # ---------------------------------------------------------------------------
1377 # Use 'make BINMAN_DEBUG=1' to enable debugging
1378 # Use 'make BINMAN_VERBOSE=3' to set vebosity level
1381 ext_dtb_list := $(basename $(notdir $(EXT_DTB)))
1382 default_dt := $(firstword $(ext_dtb_list))
1383 of_list := "$(ext_dtb_list)"
1384 of_list_dirs := $(dir $(EXT_DTB))
1386 of_list := $(CONFIG_OF_LIST)
1387 ifneq ($(CONFIG_OF_UPSTREAM_INCLUDE_LOCAL_FALLBACK_DTBOS),)
1388 of_list_dirs := $(dt_dir) arch/$(ARCH)/dts
1390 of_list_dirs := $(dt_dir)
1392 default_dt := $(if $(DEVICE_TREE),$(DEVICE_TREE),$(CONFIG_DEFAULT_DEVICE_TREE))
1395 quiet_cmd_binman = BINMAN $@
1396 cmd_binman = $(srctree)/tools/binman/binman $(if $(BINMAN_DEBUG),-D) \
1397 $(foreach f,$(BINMAN_TOOLPATHS),--toolpath $(f)) \
1398 --toolpath $(objtree)/tools \
1399 $(if $(BINMAN_VERBOSE),-v$(BINMAN_VERBOSE)) \
1400 build -u -d u-boot.dtb -O . -m \
1401 --allow-missing $(if $(BINMAN_ALLOW_MISSING),--ignore-missing) \
1402 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1403 $(foreach f,$(of_list_dirs),-I $(f)) -a of-list=$(of_list) \
1404 $(foreach f,$(BINMAN_INDIRS),-I $(f)) \
1405 -a atf-bl31-path=${BL31} \
1406 -a tee-os-path=${TEE} \
1407 -a ti-dm-path=${TI_DM} \
1408 -a opensbi-path=${OPENSBI} \
1409 -a default-dt=$(default_dt) \
1410 -a scp-path=$(SCP) \
1411 -a rockchip-tpl-path=$(ROCKCHIP_TPL) \
1412 -a spl-bss-pad=$(if $(CONFIG_SPL_SEPARATE_BSS),,1) \
1413 -a tpl-bss-pad=$(if $(CONFIG_TPL_SEPARATE_BSS),,1) \
1414 -a vpl-bss-pad=$(if $(CONFIG_VPL_SEPARATE_BSS),,1) \
1415 -a spl-dtb=$(CONFIG_SPL_OF_REAL) \
1416 -a tpl-dtb=$(CONFIG_TPL_OF_REAL) \
1417 -a vpl-dtb=$(CONFIG_VPL_OF_REAL) \
1418 -a pre-load-key-path=${PRE_LOAD_KEY_PATH} \
1419 -a of-spl-remove-props=$(CONFIG_OF_SPL_REMOVE_PROPS) \
1422 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1424 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1426 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1427 $(call if_changed,objcopy)
1429 # Boards with more complex image requirements can provide an .its source file
1430 # or a generator script
1431 # NOTE: Please do not use this. We are migrating away from Makefile rules to use
1433 ifneq ($(CONFIG_USE_SPL_FIT_GENERATOR),)
1434 U_BOOT_ITS := u-boot.its
1435 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1436 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1437 $(patsubst %,$(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1440 ifdef CONFIG_SPL_LOAD_FIT
1441 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1442 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1443 -p $(CONFIG_FIT_EXTERNAL_OFFSET) \
1444 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1445 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(DEVICE_TREE))) \
1446 $(patsubst %,-b $(dt_dir)/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) \
1447 $(patsubst %,-b $(dt_dir)/%.dtbo,$(subst ",,$(CONFIG_OF_OVERLAY_LIST)))
1449 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1450 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1451 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1452 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1453 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1454 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1455 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1458 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1460 # Some boards have the kwbimage.cfg file written in advance, while some
1461 # other boards generate it on the fly during the build in the build tree.
1462 # Let's check if the file exists in the build tree first, otherwise we
1463 # fall back to use the one in the source tree.
1464 KWD_CONFIG_FILE = $(shell \
1465 if [ -f $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) ]; then \
1466 echo -n $(objtree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1468 echo -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%); \
1471 MKIMAGEFLAGS_u-boot.kwb = -n $(KWD_CONFIG_FILE) \
1472 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE)
1474 MKIMAGEFLAGS_u-boot-with-spl.kwb = -n $(KWD_CONFIG_FILE) \
1475 -T kwbimage -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1476 $(if $(KEYDIR),-k $(KEYDIR))
1478 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1479 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -A $(ARCH) -T pblimage
1481 UBOOT_BIN := u-boot.bin
1483 MKIMAGEFLAGS_u-boot-lzma.img = -A $(ARCH) -T standalone -C lzma -O u-boot \
1484 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1485 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1487 u-boot.bin.lzma: u-boot.bin FORCE
1488 $(call if_changed,lzma)
1490 u-boot-lzma.img: u-boot.bin.lzma FORCE
1491 $(call if_changed,mkimage)
1493 fit_image := $(if $(CONFIG_SANDBOX_VPL),u-boot,u-boot-nodtb.bin)
1495 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1496 $(if $(CONFIG_SPL_LOAD_FIT),$(fit_image) \
1497 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1498 ,$(UBOOT_BIN)) FORCE
1499 $(call if_changed,mkimage)
1502 ifeq ($(CONFIG_SPL_LOAD_FIT_FULL),y)
1503 MKIMAGEFLAGS_u-boot.itb =
1505 MKIMAGEFLAGS_u-boot.itb = -E
1507 MKIMAGEFLAGS_u-boot.itb += -B 0x8
1510 u-boot.itb: u-boot-nodtb.bin \
1511 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SANDBOX),dts/dt.dtb) \
1512 $(if $(CONFIG_MULTI_DTB_FIT),$(FINAL_DTB_CONTAINER)) \
1514 $(call if_changed,mkfitimage)
1518 u-boot-with-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
1519 $(call if_changed,mkimage)
1523 $(OBJDUMP) -d $< > $@
1525 ifneq ($(CONFIG_SPL_PAYLOAD),)
1526 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1528 SPL_PAYLOAD := u-boot.bin
1531 SPL_IMAGE := $(CONFIG_SPL_IMAGE:"%"=%)
1533 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1534 --pad-to=$(CONFIG_SPL_PAD_TO)
1535 u-boot-with-spl.bin: $(SPL_IMAGE) $(SPL_PAYLOAD) FORCE
1536 $(call if_changed,pad_cat)
1538 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1539 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1541 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1542 $(call if_changed,mkimage)
1544 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1546 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1547 $(call if_changed,objcopy)
1549 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1551 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1552 $(call if_changed,objcopy)
1554 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1555 $(call if_changed,cat)
1559 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1560 --pad-to=$(CONFIG_TPL_PAD_TO)
1561 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1562 $(call if_changed,pad_cat)
1564 SPL: spl/u-boot-spl.bin FORCE
1565 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1567 #ifeq ($(CONFIG_ARCH_IMX8M)$(CONFIG_ARCH_IMX8), y)
1568 ifeq ($(CONFIG_SPL_LOAD_IMX_CONTAINER), y)
1569 u-boot.cnt: u-boot.bin FORCE
1570 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1572 flash.bin: spl/u-boot-spl.bin u-boot.cnt FORCE
1573 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1575 ifeq ($(CONFIG_BINMAN),y)
1576 flash.bin: spl/u-boot-spl.bin $(INPUTS-y) FORCE
1577 $(call if_changed,binman)
1579 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1580 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1585 u-boot.uim: u-boot.bin FORCE
1586 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1588 u-boot-nand.imx: u-boot.imx FORCE
1589 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1591 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE
1592 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1594 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_TEXT_BASE)
1596 u-boot.ubl: u-boot-with-spl.bin FORCE
1597 $(call if_changed,mkimage)
1599 MKIMAGEFLAGS_u-boot-spl.ais = -s -n "/dev/null" \
1600 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1601 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1602 $(call if_changed,mkimage)
1604 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1605 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1606 $(call if_changed,pad_cat)
1608 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1609 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1610 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1611 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1613 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1614 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1615 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1616 $(call if_changed,mkimage)
1618 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1619 quiet_cmd_gensplx4 = GENSPLX4 $@
1620 cmd_gensplx4 = $(OBJCOPY) -I binary -O binary --gap-fill=0x0 \
1621 --pad-to=$(CONFIG_SPL_PAD_TO) \
1622 spl/u-boot-spl.sfp spl/u-boot-spl.sfp && \
1623 cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1624 spl/u-boot-spl.sfp spl/u-boot-spl.sfp > $@ || { rm -f $@; false; }
1625 spl/u-boot-splx4.sfp: spl/u-boot-spl.sfp FORCE
1626 $(call if_changed,gensplx4)
1628 quiet_cmd_socboot = SOCBOOT $@
1629 cmd_socboot = cat spl/u-boot-splx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1630 u-boot-with-spl.sfp: spl/u-boot-splx4.sfp u-boot.img FORCE
1631 $(call if_changed,socboot)
1633 quiet_cmd_gensplpadx4 = GENSPLPADX4 $@
1634 cmd_gensplpadx4 = dd if=/dev/zero of=spl/u-boot-spl.pad bs=64 count=1024 ; \
1635 cat spl/u-boot-spl.sfp spl/u-boot-spl.pad \
1636 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 { rm -f $@ spl/u-boot-spl.pad; false; }
1640 u-boot-spl-padx4.sfp: spl/u-boot-spl.sfp FORCE
1641 $(call if_changed,gensplpadx4)
1643 quiet_cmd_socnandboot = SOCNANDBOOT $@
1644 cmd_socnandboot = cat u-boot-spl-padx4.sfp u-boot.img > $@ || { rm -f $@; false; }
1645 u-boot-with-nand-spl.sfp: u-boot-spl-padx4.sfp u-boot.img FORCE
1646 $(call if_changed,socnandboot)
1650 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR)$(CONFIG_OF_SEPARATE),yy)
1651 u-boot-dtb.bin: u-boot-nodtb.bin u-boot.dtb u-boot-br.bin FORCE
1652 $(call if_changed,binman)
1654 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1655 u-boot-br.bin: u-boot FORCE
1656 $(call if_changed,objcopy)
1659 quiet_cmd_ldr = LD $@
1660 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1661 $(filter-out FORCE,$^) -o $@
1664 OBJCOPYFLAGS_u-boot-x86-start16.bin := -O binary -j .start16
1665 u-boot-x86-start16.bin: u-boot FORCE
1666 $(call if_changed,objcopy)
1668 OBJCOPYFLAGS_u-boot-x86-reset16.bin := -O binary -j .resetvec
1669 u-boot-x86-reset16.bin: u-boot FORCE
1670 $(call if_changed,objcopy)
1674 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1675 u-boot-app.efi: u-boot FORCE
1676 $(call if_changed,zobjcopy)
1678 u-boot.bin.o: u-boot.bin FORCE
1679 $(call if_changed,efipayload)
1681 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1682 $(call if_changed_dep,cpp_lds)
1684 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1685 quiet_cmd_u-boot_payload ?= LD $@
1686 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1687 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1688 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1689 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1691 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1692 $(call if_changed,u-boot_payload)
1694 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1695 u-boot-payload.efi: u-boot-payload FORCE
1696 $(call if_changed,zobjcopy)
1698 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1699 $(call if_changed,cat)
1701 #Add a target to create boot binary having SPL binary in PBI format
1702 #concatenated with u-boot binary. It is need by PowerPC SoC having
1703 #internal SRAM <= 512KB.
1704 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1705 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1706 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1708 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1709 $(call if_changed,mkimage)
1712 UBOOT_BINLOAD := u-boot.img
1714 UBOOT_BINLOAD := u-boot.bin
1717 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1720 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1721 $(call if_changed,pad_cat)
1723 quiet_cmd_u-boot-elf ?= LD $@
1724 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1725 $(if $(CONFIG_SYS_BIG_ENDIAN),-EB,-EL) \
1726 -T u-boot-elf.lds --defsym=$(CONFIG_PLATFORM_ELFENTRY)=$(CONFIG_TEXT_BASE) \
1727 -Ttext=$(CONFIG_TEXT_BASE)
1728 u-boot.elf: u-boot.bin u-boot-elf.lds
1729 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1730 $(call if_changed,u-boot-elf)
1732 u-boot-elf.lds: arch/u-boot-elf.lds prepare FORCE
1733 $(call if_changed_dep,cpp_lds)
1735 # MediaTek's ARM-based u-boot needs a header to contains its load address
1736 # which is parsed by the BootROM.
1737 # If the SPL build is enabled, the header will be added to the spl binary,
1738 # and the spl binary and the u-boot.img will be combined into one file.
1739 # Otherwise the header will be added to the u-boot.bin directly.
1741 ifeq ($(CONFIG_SPL),y)
1742 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1744 u-boot-mtk.bin: u-boot-with-spl.bin
1745 $(call if_changed,copy)
1747 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1748 -a $(CONFIG_TEXT_BASE) -e $(CONFIG_TEXT_BASE) \
1749 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1751 u-boot-mtk.bin: u-boot.bin FORCE
1752 $(call if_changed,mkimage)
1755 quiet_cmd_endian_swap = SWAP $@
1756 cmd_endian_swap = $(srctree)/tools/endian-swap.py $< $@
1758 u-boot-swap.bin: u-boot.bin FORCE
1759 $(call if_changed,endian_swap)
1761 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1763 # Generate linker list symbols references to force compiler to not optimize
1764 # them away when compiling with LTO
1765 ifeq ($(LTO_ENABLE),y)
1766 u-boot-keep-syms-lto := keep-syms-lto.o
1767 u-boot-keep-syms-lto_c := $(patsubst %.o,%.c,$(u-boot-keep-syms-lto))
1769 quiet_cmd_keep_syms_lto = KSL $@
1770 cmd_keep_syms_lto = \
1771 $(srctree)/scripts/gen_ll_addressable_symbols.sh $(NM) $^ > $@
1773 quiet_cmd_keep_syms_lto_cc = KSLCC $@
1774 cmd_keep_syms_lto_cc = \
1775 $(CC) $(filter-out $(LTO_CFLAGS),$(c_flags)) -c -o $@ $<
1777 $(u-boot-keep-syms-lto_c): $(u-boot-main)
1778 $(call if_changed,keep_syms_lto)
1779 $(u-boot-keep-syms-lto): $(u-boot-keep-syms-lto_c)
1780 $(call if_changed,keep_syms_lto_cc)
1782 u-boot-keep-syms-lto :=
1785 # Rule to link u-boot
1786 # May be overridden by arch/$(ARCH)/config.mk
1787 ifeq ($(LTO_ENABLE),y)
1788 quiet_cmd_u-boot__ ?= LTO $@
1790 $(CC) -nostdlib -nostartfiles \
1791 $(LTO_FINAL_LDFLAGS) $(c_flags) \
1792 $(KBUILD_LDFLAGS:%=-Wl,%) $(LDFLAGS_u-boot:%=-Wl,%) -o $@ \
1793 -T u-boot.lds $(u-boot-init) \
1794 -Wl,--whole-archive \
1796 $(u-boot-keep-syms-lto) \
1798 -Wl,--no-whole-archive \
1799 -Wl,-Map,u-boot.map; \
1800 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1802 quiet_cmd_u-boot__ ?= LD $@
1803 cmd_u-boot__ ?= $(LD) $(KBUILD_LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1804 -T u-boot.lds $(u-boot-init) \
1807 --no-whole-archive \
1808 $(PLATFORM_LIBS) -Map u-boot.map; \
1809 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1812 quiet_cmd_smap = GEN common/system_map.o
1814 smap=`$(call SYSTEM_MAP,u-boot) | \
1815 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1816 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1817 -c $(srctree)/common/system_map.c -o common/system_map.o
1819 u-boot: $(u-boot-init) $(u-boot-main) $(u-boot-keep-syms-lto) u-boot.lds FORCE
1820 +$(call if_changed,u-boot__)
1821 ifeq ($(CONFIG_KALLSYMS),y)
1823 $(call cmd,u-boot__) common/system_map.o
1826 ifeq ($(CONFIG_RISCV),y)
1827 @tools/prelink-riscv $@
1830 quiet_cmd_sym ?= SYM $@
1831 cmd_sym ?= $(OBJDUMP) -t $< > $@
1832 u-boot.sym: u-boot FORCE
1833 $(call if_changed,sym)
1835 # Environment processing
1836 # ---------------------------------------------------------------------------
1838 # Directory where we expect the .env file, if it exists
1839 ENV_DIR := $(srctree)/board/$(BOARDDIR)
1841 # Basename of .env file, stripping quotes
1842 ENV_SOURCE_FILE := $(CONFIG_ENV_SOURCE_FILE:"%"=%)
1844 # Filename of .env file
1845 ENV_FILE_CFG := $(ENV_DIR)/$(ENV_SOURCE_FILE).env
1847 # Default filename, if CONFIG_ENV_SOURCE_FILE is empty
1848 ENV_FILE_BOARD := $(ENV_DIR)/$(CONFIG_SYS_BOARD:"%"=%).env
1850 # Select between the CONFIG_ENV_SOURCE_FILE and the default one
1851 ENV_FILE := $(if $(ENV_SOURCE_FILE),$(ENV_FILE_CFG),$(wildcard $(ENV_FILE_BOARD)))
1853 # Run the environment text file through the preprocessor, but only if it is
1854 # non-empty, to save time and possible build errors if something is wonky with
1856 # If there is no ENV_FILE, produce an empty output file, to prevent a previous
1857 # build's file being used in the case of in-tree builds.
1858 quiet_cmd_gen_envp = ENVP $@
1860 if [ -s "$(ENV_FILE)" ]; then \
1861 $(CPP) -P $(cpp_flags) -x assembler-with-cpp -undef \
1863 -D__UBOOT_CONFIG__ \
1864 -I . -I include -I $(srctree)/include \
1865 -include linux/kconfig.h -include include/config.h \
1866 -I$(srctree)/arch/$(ARCH)/include \
1872 include/generated/env.in: include/generated/env.txt
1873 $(call cmd,gen_envp)
1875 # Regenerate the environment if it changes
1876 # We use 'wildcard' since the file is not required to exist (at present), in
1877 # which case we don't want this dependency, but instead should create an empty
1879 # This rule is useful since it shows the source file for the environment
1880 quiet_cmd_envc = ENVC $@
1882 if [ -f "$<" ]; then \
1884 elif [ -n "$(ENV_SOURCE_FILE)" ]; then \
1885 echo "Missing file $(ENV_FILE_CFG)"; \
1890 include/generated/env.txt: $(wildcard $(ENV_FILE)) include/generated/autoconf.h
1893 # Write out the resulting environment, converted to a C string
1894 quiet_cmd_gen_envt = ENVT $@
1896 awk -f $(srctree)/scripts/env2string.awk $< >$@
1897 $(env_h): include/generated/env.in
1898 $(call cmd,gen_envt)
1900 # ---------------------------------------------------------------------------
1902 # The actual objects are generated when descending,
1903 # make sure no implicit rule kicks in
1904 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1906 # Handle descending into subdirectories listed in $(u-boot-dirs)
1907 # Preset locale variables to speed up the build process. Limit locale
1908 # tweaks to this spot to avoid wrong language settings when running
1909 # make menuconfig etc.
1910 # Error messages still appears in the original language
1912 PHONY += $(u-boot-dirs)
1913 $(u-boot-dirs): prepare scripts
1914 $(Q)$(MAKE) $(build)=$@
1917 # The "tools" are needed early
1918 $(filter-out tools, $(u-boot-dirs)): tools
1919 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1920 # is "yes"), so compile examples after U-Boot is compiled.
1921 examples: $(filter-out examples, $(u-boot-dirs))
1923 # The setlocalversion script comes from linux and expects a
1924 # KERNELVERSION variable in the environment for figuring out which
1925 # annotated tags are relevant. Pass UBOOTVERSION.
1926 define filechk_uboot.release
1927 KERNELVERSION=$(UBOOTVERSION) $(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree)
1930 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1931 include/config/uboot.release: include/config/auto.conf FORCE
1932 $(call filechk,uboot.release)
1935 # Things we need to do before we recursively start building the kernel
1936 # or the modules are listed in "prepare".
1937 # A multi level approach is used. prepareN is processed before prepareN-1.
1938 # archprepare is used in arch Makefiles and when processed asm symlink,
1939 # version.h and scripts_basic is processed / created.
1941 # Listed in dependency order
1942 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1944 # prepare3 is used to check if we are building in a separate output directory,
1946 # 1) Check that make has not been executed in the kernel src $(srctree)
1947 prepare3: include/config/uboot.release
1948 ifneq ($(KBUILD_SRC),)
1949 @$(kecho) ' Using $(srctree) as source for U-Boot'
1950 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1951 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1952 echo >&2 " in the '$(srctree)' directory.";\
1957 # prepare2 creates a makefile if using a separate output directory
1958 prepare2: prepare3 outputmakefile cfg
1960 prepare1: prepare2 $(version_h) $(timestamp_h) $(dt_h) $(env_h) \
1961 include/config/auto.conf
1962 ifeq ($(wildcard $(LDSCRIPT)),)
1963 @echo >&2 " Could not find linker script."
1967 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1968 prepare1: $(defaultenv_h)
1970 envtools: $(defaultenv_h)
1973 archprepare: prepare1 scripts_basic
1975 prepare0: archprepare FORCE
1976 $(Q)$(MAKE) $(build)=.
1978 # All the preparing..
1981 # Generate some files
1982 # ---------------------------------------------------------------------------
1984 # Use sed to remove leading zeros from PATCHLEVEL to avoid using octal numbers
1985 define filechk_version.h
1986 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1987 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1988 echo \#define U_BOOT_VERSION_NUM $(VERSION); \
1989 echo \#define U_BOOT_VERSION_NUM_PATCH $$(echo $(PATCHLEVEL) | \
1990 sed -e "s/^0*//"); \
1991 echo \#define HOST_ARCH $(HOST_ARCH); \
1992 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1993 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1996 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1997 # The BSD date on the other hand behaves different and would produce errors
1998 # with the misused '-d' switch. Respect that and search a working date with
1999 # well known pre- and suffixes for the GNU variant of date.
2000 define filechk_timestamp.h
2001 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
2002 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
2004 for date in gdate date.gnu date; do \
2005 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
2007 if test -n "$${DATE}"; then \
2008 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
2009 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
2010 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
2011 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_EPOCH %s'; \
2016 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
2017 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
2018 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
2019 LC_ALL=C date +'#define U_BOOT_EPOCH %s'; \
2023 define filechk_defaultenv.h
2024 ( { grep -v '^#' | grep -v '^$$' || true ; echo '' ; } | \
2026 sed -e 's/\\\x0\s*//g' | \
2031 (if test -n "$${DEVICE_TREE}"; then \
2032 echo \#define DEVICE_TREE \"$(DEVICE_TREE)\"; \
2034 echo \#define DEVICE_TREE CONFIG_DEFAULT_DEVICE_TREE; \
2038 $(version_h): include/config/uboot.release FORCE
2039 $(call filechk,version.h)
2041 $(timestamp_h): $(srctree)/Makefile FORCE
2042 $(call filechk,timestamp.h)
2044 $(dt_h): $(srctree)/Makefile FORCE
2045 $(call filechk,dt.h)
2047 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
2048 $(call filechk,defaultenv.h)
2050 # ---------------------------------------------------------------------------
2053 ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/boot/dts/),)
2054 dtstree := arch/$(SRCARCH)/boot/dts
2059 %.dtb: prepare3 scripts_dtc
2060 $(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
2062 PHONY += dtbs dtbs_install
2063 dtbs: prepare3 scripts_dtc
2064 $(Q)$(MAKE) $(build)=$(dtstree)
2067 $(Q)$(MAKE) $(dtbinst)=$(dtstree)
2071 # Check dtc and pylibfdt, if DTC is provided, else build them
2072 PHONY += scripts_dtc
2073 scripts_dtc: scripts_basic
2074 $(Q)if test "$(DTC)" = "$(DTC_INTREE)"; then \
2075 $(MAKE) $(build)=scripts/dtc; \
2077 if ! $(DTC) -v >/dev/null; then \
2078 echo '*** Failed to check dtc version: $(DTC)'; \
2081 if test "$(call dtc-version)" -lt $(DTC_MIN_VERSION); then \
2082 echo '*** Your dtc is too old, please upgrade to dtc $(DTC_MIN_VERSION) or newer'; \
2085 if [ -n "$(CONFIG_PYLIBFDT)" ]; then \
2086 if ! echo "import libfdt" | $(PYTHON3) 2>/dev/null; then \
2087 echo '*** pylibfdt does not seem to be available with $(PYTHON3)'; \
2095 # ---------------------------------------------------------------------------
2096 quiet_cmd_cpp_lds = LDS $@
2097 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
2098 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
2100 u-boot.lds: $(LDSCRIPT) prepare FORCE
2101 $(call if_changed_dep,cpp_lds)
2103 spl/u-boot-spl.bin: spl/u-boot-spl
2107 spl/u-boot-spl-dtb.bin: spl/u-boot-spl
2110 spl/u-boot-spl-dtb.hex: spl/u-boot-spl
2113 spl/u-boot-spl: tools prepare $(if $(CONFIG_SPL_OF_CONTROL),dts/dt.dtb)
2114 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.xpl all
2116 spl/sunxi-spl.bin: spl/u-boot-spl
2119 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
2122 spl/u-boot-spl.sfp: spl/u-boot-spl
2125 spl/boot.bin: spl/u-boot-spl
2128 tpl/u-boot-tpl.bin: tpl/u-boot-tpl
2132 tpl/u-boot-tpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2133 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.xpl all
2135 vpl/u-boot-vpl.bin: vpl/u-boot-vpl
2139 vpl/u-boot-vpl: tools prepare $(if $(CONFIG_TPL_OF_CONTROL),dts/dt.dtb)
2140 $(Q)$(MAKE) obj=vpl -f $(srctree)/scripts/Makefile.xpl all
2142 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
2148 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2149 -name '*.[chS]' -print`
2153 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
2154 -name '*.[chS]' -print`
2156 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
2158 @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \
2159 grep -xvf - cscope.files > cscope.files.no-symlinks; \
2160 mv cscope.files.no-symlinks cscope.files
2165 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
2168 @$(call SYSTEM_MAP,$<) > $@
2170 #########################################################################
2172 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
2173 # R_AARCH64_RELATIVE (64-bit).
2174 checkarmreloc: u-boot
2175 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
2176 grep R_A | sort -u`"; \
2177 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
2178 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
2179 echo "$< contains unexpected relocations: $$RELOC"; \
2183 tools/version.h: include/version.h
2184 $(Q)mkdir -p $(dir $@)
2185 $(call if_changed,copy)
2187 envtools: u-boot-initial-env scripts_basic $(version_h) $(timestamp_h) tools/version.h
2188 $(Q)$(MAKE) $(build)=tools/env
2190 tools-only: export TOOLS_ONLY=y
2191 tools-only: scripts_basic $(version_h) $(timestamp_h) tools/version.h
2192 $(Q)$(MAKE) $(build)=tools
2194 tools-all: export HOST_TOOLS_ALL=y
2195 tools-all: envtools tools ;
2197 cross_tools: export CROSS_BUILD_TOOLS=y
2198 cross_tools: tools ;
2202 git log --no-merges U-Boot-1_1_5.. | \
2203 unexpand -a | sed -e 's/\s\s*$$//' > $@
2205 #########################################################################
2208 # Cleaning is done on three levels.
2209 # make clean Delete most generated files
2210 # Leave enough to build external modules
2211 # make mrproper Delete the current configuration, and all generated files
2212 # make distclean Remove editor backup files, patch leftover files and the like
2214 # Directories & files removed with 'make clean'
2215 CLEAN_DIRS += $(MODVERDIR) \
2216 $(foreach d, spl tpl vpl, $(patsubst %,$d/%, \
2217 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
2219 CLEAN_FILES += include/autoconf.mk* include/bmp_logo.h include/bmp_logo_data.h \
2220 include/config.h include/generated/env.* drivers/video/u_boot_logo.S \
2221 tools/version.h u-boot* MLO* SPL System.map fit-dtb.blob* \
2222 u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log \
2223 lpc32xx-* bl31.c bl31.elf bl31_*.bin image.map tispl.bin* \
2224 idbloader.img flash.bin flash.log defconfig keep-syms-lto.c \
2225 mkimage-out.spl.mkimage mkimage.spl.mkimage imx-boot.map \
2226 itb.fit.fit itb.fit.itb itb.map spl.map mkimage-out.rom.mkimage \
2227 mkimage.rom.mkimage mkimage-in-simple-bin* rom.map simple-bin* \
2228 idbloader-spi.img lib/efi_loader/helloworld_efi.S *.itb \
2229 Test* capsule.*.efi-capsule capsule*.map
2231 # Directories & files removed with 'make mrproper'
2232 MRPROPER_DIRS += include/config include/generated spl tpl vpl \
2233 .tmp_objdiff doc/output include/asm
2235 # Remove include/asm symlink created by U-Boot before v2014.01
2236 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
2237 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
2238 drivers/video/fonts/*.S include/asm *imx8mimage* *imx8mcst*
2240 # clean - Delete most, but leave enough to build external modules
2242 clean: rm-dirs := $(CLEAN_DIRS)
2243 clean: rm-files := $(CLEAN_FILES)
2245 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
2247 clean-dirs := $(addprefix _clean_, $(clean-dirs))
2249 PHONY += $(clean-dirs) clean archclean
2251 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
2253 clean: $(clean-dirs)
2256 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
2257 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
2258 -o -name '*.ko.*' -o -name '*.su' -o -name '*.pyc' \
2259 -o -name '*.dtb' -o -name '*.dtbo' \
2260 -o -name '*.dtb.S' -o -name '*.dtbo.S' \
2261 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
2262 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
2263 -o -name '*.asn1.[ch]' \
2264 -o -name '*.symtypes' -o -name 'modules.order' \
2265 -o -name modules.builtin -o -name '.tmp_*.o.*' \
2266 -o -name 'dsdt_generated.aml' -o -name 'dsdt_generated.asl.tmp' \
2267 -o -name 'dsdt_generated.c' \
2268 -o -name 'generated_defconfig' \
2269 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
2270 -type f -print | xargs rm -f
2272 # mrproper - Delete all generated files, including .config
2274 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
2275 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
2276 mrproper-dirs := $(addprefix _mrproper_,scripts)
2278 PHONY += $(mrproper-dirs) mrproper archmrproper
2280 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
2282 mrproper: clean $(mrproper-dirs)
2285 @rm -f arch/*/include/asm/arch
2292 @find $(srctree) $(RCS_FIND_IGNORE) \
2293 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
2294 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
2295 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
2296 -o -name '*.pyc' \) \
2297 -type f -print | xargs rm -f
2298 @rm -f boards.cfg CHANGELOG
2300 # See doc/develop/python_cq.rst
2301 PHONY += pylint pylint_err
2302 PYLINT_BASE := scripts/pylint.base
2303 PYLINT_CUR := pylint.cur
2304 PYLINT_DIFF := pylint.diff
2306 $(Q)echo "Running pylint on all files (summary in $(PYLINT_CUR); output in pylint.out/)"
2307 $(Q)mkdir -p pylint.out
2308 $(Q)rm -f pylint.out/out*
2309 $(Q)find tools test -name "*.py" \
2310 | xargs -n1 -P$(shell nproc 2>/dev/null || echo 1) \
2311 sh -c 'pylint --reports=y --exit-zero -f parseable --ignore-imports=yes $$@ > pylint.out/$$(echo $$@ | tr / _ | sed s/.py//)' _
2312 $(Q)rm -f $(PYLINT_CUR)
2313 $(Q)( cd pylint.out; for f in *; do \
2314 sed -ne "s/Your code has been rated at \([-0-9.]*\).*/$$f \1/p" $$f; \
2315 done ) | sort > $(PYLINT_CUR)
2316 $(Q)base=$$(mktemp) cur=$$(mktemp); cut -d' ' -f1 $(PYLINT_BASE) >$$base; \
2317 cut -d' ' -f1 $(PYLINT_CUR) >$$cur; \
2318 comm -3 $$base $$cur > $(PYLINT_DIFF); \
2319 if [ -s $(PYLINT_DIFF) ]; then \
2320 echo "Files have been added/removed. Try:\n\tcp $(PYLINT_CUR) $(PYLINT_BASE)"; \
2322 echo "Added files:"; \
2323 comm -13 $$base $$cur; \
2325 echo "Removed files:"; \
2326 comm -23 $$base $$cur; \
2329 rm $$base $$cur $(PYLINT_DIFF); \
2331 $(Q)bad=false; while read base_file base_val <&3 && read cur_file cur_val <&4; do \
2332 if awk "BEGIN {exit !($$cur_val < $$base_val)}"; then \
2333 echo "$$base_file: Score was $$base_val, now $$cur_val"; \
2335 done 3<$(PYLINT_BASE) 4<$(PYLINT_CUR); \
2337 echo "Some files have regressed, please fix"; \
2340 echo "No pylint regressions"; \
2343 # Check for errors only
2345 $(Q)pylint -E -j 0 --ignore-imports=yes \
2346 $(shell find tools test -name "*.py")
2349 F=`basename $(srctree)` ; cd .. ; \
2350 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
2352 PHONY += _pip pip pip_release
2354 pip_release: PIP_ARGS="--real"
2355 pip_test: PIP_ARGS=""
2358 pip pip_test pip_release: _pip
2361 scripts/make_pip.sh u_boot_pylib ${PIP_ARGS}
2362 scripts/make_pip.sh patman ${PIP_ARGS}
2363 scripts/make_pip.sh buildman ${PIP_ARGS}
2364 scripts/make_pip.sh dtoc ${PIP_ARGS}
2365 scripts/make_pip.sh binman ${PIP_ARGS}
2368 @echo 'Cleaning targets:'
2369 @echo ' clean - Remove most generated files but keep the config'
2370 @echo ' mrproper - Remove all generated files + config + various backup files'
2371 @echo ' distclean - mrproper + remove editor backup and patch files'
2373 @echo 'Configuration targets:'
2374 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
2376 @echo 'Test targets:'
2378 @echo ' check - Run all automated tests that use sandbox'
2379 @echo ' pcheck - Run quick automated tests in parallel'
2380 @echo ' qcheck - Run quick automated tests that use sandbox'
2381 @echo ' tcheck - Run quick automated tests on tools'
2382 @echo ' pylint - Run pylint on all Python files'
2384 @echo 'Other generic targets:'
2385 @echo ' all - Build all necessary images depending on configuration'
2386 @echo ' tests - Build U-Boot for sandbox and run tests'
2387 @echo '* u-boot - Build the bare u-boot'
2388 @echo ' dir/ - Build all files in dir and below'
2389 @echo ' dir/file.[oisS] - Build specified target only'
2390 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
2391 @echo ' (requires a recent binutils and recent build (System.map))'
2392 @echo ' tags/ctags - Generate ctags file for editors'
2393 @echo ' etags - Generate etags file for editors'
2394 @echo ' cscope - Generate cscope index'
2395 @echo ' ubootrelease - Output the release version string (use with make -s)'
2396 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
2397 @echo " cfg - Don't build, just create the .cfg files"
2398 @echo " envtools - Build only the target-side environment tools"
2400 @echo 'PyPi / pip targets:'
2401 @echo ' pip - Check building of PyPi packages'
2402 @echo ' pip_test - Build PyPi pakages and upload to test server'
2403 @echo ' pip_release - Build PyPi pakages and upload to release server'
2405 @echo 'Static analysers'
2406 @echo ' checkstack - Generate a list of stack hogs'
2407 @echo ' coccicheck - Execute static code analysis with Coccinelle'
2409 @echo 'Documentation targets:'
2410 @$(MAKE) -f $(srctree)/doc/Makefile dochelp
2412 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
2413 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
2414 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
2415 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
2416 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
2417 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
2418 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
2419 @echo ' 1: warnings which may be relevant and do not occur too often'
2420 @echo ' 2: warnings which occur quite often but may still be relevant'
2421 @echo ' 3: more obscure warnings, can most likely be ignored'
2422 @echo ' Multiple levels can be combined with W=12 or W=123'
2424 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
2425 @echo 'For further info see the ./README file'
2431 $(srctree)/test/run parallel
2434 $(srctree)/test/run quick
2437 $(srctree)/test/run tools
2439 # Documentation targets
2440 # ---------------------------------------------------------------------------
2441 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
2442 linkcheckdocs dochelp refcheckdocs texinfodocs infodocs
2443 PHONY += $(DOC_TARGETS)
2444 $(DOC_TARGETS): scripts_basic FORCE
2445 $(Q)$(MAKE) $(build)=doc $@
2447 PHONY += checkstack ubootrelease ubootversion
2450 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
2451 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
2454 @$(filechk_uboot.release)
2457 @echo $(UBOOTVERSION)
2460 # ---------------------------------------------------------------------------
2461 # Single targets are compatible with:
2462 # - build with mixed source and output
2463 # - build with separate output dir 'make O=...'
2464 # - external modules
2466 # target-dir => where to store outputfile
2467 # build-dir => directory in kernel source tree to use
2469 ifeq ($(KBUILD_EXTMOD),)
2470 build-dir = $(patsubst %/,%,$(dir $@))
2471 target-dir = $(dir $@)
2473 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
2474 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
2475 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
2478 %.s: %.c prepare scripts FORCE
2479 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2480 %.i: %.c prepare scripts FORCE
2481 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2482 %.o: %.c prepare scripts FORCE
2483 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2484 %.lst: %.c prepare scripts FORCE
2485 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2486 %.s: %.S prepare scripts FORCE
2487 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2488 %.o: %.S prepare scripts FORCE
2489 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2490 %.symtypes: %.c prepare scripts FORCE
2491 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
2494 /: prepare scripts FORCE
2496 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2497 $(build)=$(build-dir)
2498 %/: prepare scripts FORCE
2500 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2501 $(build)=$(build-dir)
2502 %.ko: prepare scripts FORCE
2504 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
2505 $(build)=$(build-dir) $(@:.ko=.o)
2506 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
2508 quiet_cmd_genenv = GENENV $@
2510 $(objtree)/tools/printinitialenv | \
2511 sed -e '/^\s*$$/d' | \
2512 sort -t '=' -k 1,1 -s -o $@
2514 u-boot-initial-env: scripts_basic $(env_h) FORCE
2515 $(Q)$(MAKE) $(build)=tools $(objtree)/tools/printinitialenv
2516 $(call if_changed,genenv)
2518 # Consistency checks
2519 # ---------------------------------------------------------------------------
2524 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
2526 # FIXME Should go into a make.lib or something
2527 # ===========================================================================
2529 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
2530 cmd_rmdirs = rm -rf $(rm-dirs)
2532 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
2533 cmd_rmfiles = rm -f $(rm-files)
2535 # read all saved command lines
2537 cmd_files := $(wildcard .*.cmd)
2539 ifneq ($(cmd_files),)
2540 $(cmd_files): ; # Do not try to update included dependency files
2541 include $(cmd_files)
2544 endif #ifeq ($(config-targets),1)
2545 endif #ifeq ($(mixed-targets),1)
2546 endif # skip-makefile
2551 # Declare the contents of the PHONY variable as phony. We keep that
2552 # information in a variable so we can use it in if_changed and friends.