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 # o Do not use make's built-in rules and variables
16 # (this increases performance and avoids hard-to-debug behaviour);
17 # o Look for make include files relative to root of kernel src
18 MAKEFLAGS += -rR --include-dir=$(CURDIR)
20 # Avoid funny character set dependencies
24 export LC_COLLATE LC_NUMERIC
26 # Avoid interference with shell env settings
29 # We are using a recursive build, so we need to do a little thinking
30 # to get the ordering right.
32 # Most importantly: sub-Makefiles should only ever modify files in
33 # their own directory. If in some directory we have a dependency on
34 # a file in another dir (which doesn't happen often, but it's often
35 # unavoidable when linking the built-in.o targets which finally
36 # turn into vmlinux), we will call a sub make in that other dir, and
37 # after that we are sure that everything which is in that other dir
40 # The only cases where we need to modify files which have global
41 # effects are thus separated out and done before the recursive
42 # descending is started. They are now explicitly listed as the
46 # ---------------------------------------------------------------------------
48 # Normally, we echo the whole command before executing it. By making
49 # that echo $($(quiet)$(cmd)), we now have the possibility to set
50 # $(quiet) to choose other forms of output instead, e.g.
52 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
53 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
55 # If $(quiet) is empty, the whole command will be printed.
56 # If it is set to "quiet_", only the short version will be printed.
57 # If it is set to "silent_", nothing will be printed at all, since
58 # the variable $(silent_cmd_cc_o_c) doesn't exist.
60 # A simple variant is to prefix commands with $(Q) - that's useful
61 # for commands that shall be hidden in non-verbose mode.
65 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
66 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
68 # To put more focus on warnings, be less verbose as default
69 # Use 'make V=1' to see the full commands
71 ifeq ("$(origin V)", "command line")
78 ifeq ($(KBUILD_VERBOSE),1)
86 # If the user is running make -s (silent mode), suppress echoing of
89 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
90 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
94 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
99 export quiet Q KBUILD_VERBOSE
101 # kbuild supports saving output files in a separate directory.
102 # To locate output files in a separate directory two syntaxes are supported.
103 # In both cases the working directory must be the root of the kernel src.
105 # Use "make O=dir/to/store/output/files/"
107 # 2) Set KBUILD_OUTPUT
108 # Set the environment variable KBUILD_OUTPUT to point to the directory
109 # where the output files shall be placed.
110 # export KBUILD_OUTPUT=dir/to/store/output/files/
113 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
116 # KBUILD_SRC is set on invocation of make in OBJ directory
117 # KBUILD_SRC is not intended to be used by the regular user (for now)
118 ifeq ($(KBUILD_SRC),)
120 # OK, Make called in directory where kernel src resides
121 # Do we want to locate output files in a separate directory?
122 ifeq ("$(origin O)", "command line")
123 KBUILD_OUTPUT := $(O)
126 # That's our default target when none is given on the command line
130 # Cancel implicit rules on top Makefile
131 $(CURDIR)/Makefile Makefile: ;
133 ifneq ($(KBUILD_OUTPUT),)
134 # Invoke a second make in the output directory, passing relevant variables
135 # check that the output directory actually exists
136 saved-output := $(KBUILD_OUTPUT)
137 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
139 $(if $(KBUILD_OUTPUT),, \
140 $(error failed to create output directory "$(saved-output)"))
142 PHONY += $(MAKECMDGOALS) sub-make
144 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
148 $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \
149 -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS))
151 # Leave processing to above invocation of make
153 endif # ifneq ($(KBUILD_OUTPUT),)
154 endif # ifeq ($(KBUILD_SRC),)
156 # We process the rest of the Makefile if this is the final invocation of make
157 ifeq ($(skip-makefile),)
159 # Do not print "Entering directory ...",
160 # but we want to display it when entering to the output directory
161 # so that IDEs/editors are able to understand relative filenames.
162 MAKEFLAGS += --no-print-directory
164 # Call a source code checker (by default, "sparse") as part of the
167 # Use 'make C=1' to enable checking of only re-compiled files.
168 # Use 'make C=2' to enable checking of *all* source files, regardless
169 # of whether they are re-compiled or not.
171 # See the file "Documentation/sparse.txt" for more details, including
172 # where to get the "sparse" utility.
174 ifeq ("$(origin C)", "command line")
175 KBUILD_CHECKSRC = $(C)
177 ifndef KBUILD_CHECKSRC
181 # Use make M=dir to specify directory of external module to build
182 # Old syntax make ... SUBDIRS=$PWD is still supported
183 # Setting the environment variable KBUILD_EXTMOD take precedence
185 KBUILD_EXTMOD ?= $(SUBDIRS)
188 ifeq ("$(origin M)", "command line")
189 KBUILD_EXTMOD := $(M)
192 # If building an external module we do not care about the all: rule
193 # but instead _all depend on modules
195 ifeq ($(KBUILD_EXTMOD),)
201 ifeq ($(KBUILD_SRC),)
202 # building in the source tree
205 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
206 # building in a subdirectory of the source tree
209 srctree := $(KBUILD_SRC)
216 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
218 export srctree objtree VPATH
220 # Make sure CDPATH settings don't interfere
223 #########################################################################
225 HOSTARCH := $(shell uname -m | \
227 -e s/sun4u/sparc64/ \
230 -e s/ppc64/powerpc/ \
232 -e s/macppc/powerpc/\
235 HOSTOS := $(shell uname -s | tr '[:upper:]' '[:lower:]' | \
236 sed -e 's/\(cygwin\).*/cygwin/')
238 export HOSTARCH HOSTOS
240 #########################################################################
242 # set default to nothing for native builds
243 ifeq ($(HOSTARCH),$(ARCH))
247 KCONFIG_CONFIG ?= .config
248 export KCONFIG_CONFIG
250 # SHELL used by kbuild
251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252 else if [ -x /bin/bash ]; then echo /bin/bash; \
253 else echo sh; fi ; fi)
257 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer \
258 $(if $(CONFIG_TOOLS_DEBUG),-g)
261 # With the move to GCC 6, we have implicitly upgraded our language
262 # standard to GNU11 (see https://gcc.gnu.org/gcc-5/porting_to.html).
263 # Some Linux distributions (including RHEL7, SLES13, Debian 8) still
264 # have older compilers as their default, so we make it explicit for
265 # these that our host tools are GNU11 (i.e. C11 w/ GNU extensions).
266 CSTD_FLAG := -std=gnu11
267 ifeq ($(HOSTOS),linux)
268 HOSTCFLAGS += $(CSTD_FLAG)
271 ifeq ($(HOSTOS),cygwin)
275 # Mac OS X / Darwin's C preprocessor is Apple specific. It
276 # generates numerous errors and warnings. We want to bypass it
277 # and use GNU C's cpp. To do this we pass the -traditional-cpp
278 # option to the compiler. Note that the -traditional-cpp flag
279 # DOES NOT have the same semantics as GNU C's flag, all it does
280 # is invoke the GNU preprocessor in stock ANSI/ISO C fashion.
282 # Apple's linker is similar, thanks to the new 2 stage linking
283 # multiple symbol definitions are treated as errors, hence the
284 # -multiply_defined suppress option to turn off this error.
286 ifeq ($(HOSTOS),darwin)
287 # get major and minor product version (e.g. '10' and '6' for Snow Leopard)
288 DARWIN_MAJOR_VERSION = $(shell sw_vers -productVersion | cut -f 1 -d '.')
289 DARWIN_MINOR_VERSION = $(shell sw_vers -productVersion | cut -f 2 -d '.')
291 os_x_before = $(shell if [ $(DARWIN_MAJOR_VERSION) -le $(1) -a \
292 $(DARWIN_MINOR_VERSION) -le $(2) ] ; then echo "$(3)"; else echo "$(4)"; fi ;)
294 # Snow Leopards build environment has no longer restrictions as described above
295 HOSTCC = $(call os_x_before, 10, 5, "cc", "gcc")
296 HOSTCFLAGS += $(call os_x_before, 10, 4, "-traditional-cpp")
297 HOSTLDFLAGS += $(call os_x_before, 10, 5, "-multiply_defined suppress")
299 # since Lion (10.7) ASLR is on by default, but we use linker generated lists
300 # in some host tools which is a problem then ... so disable ASLR for these
302 HOSTLDFLAGS += $(call os_x_before, 10, 7, "", "-Xlinker -no_pie")
305 # Decide whether to build built-in, modular, or both.
306 # Normally, just do built-in.
311 # If we have only "make modules", don't compile built-in objects.
312 # When we're building modules with modversions, we need to consider
313 # the built-in objects during the descend as well, in order to
314 # make sure the checksums are up to date before we record them.
316 ifeq ($(MAKECMDGOALS),modules)
317 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
320 # If we have "make <whatever> modules", compile modules
321 # in addition to whatever we do anyway.
322 # Just "make" or "make all" shall build modules as well
324 # U-Boot does not need modules
325 #ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
326 # KBUILD_MODULES := 1
329 #ifeq ($(MAKECMDGOALS),)
330 # KBUILD_MODULES := 1
333 export KBUILD_MODULES KBUILD_BUILTIN
334 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
336 # We need some generic definitions (do not try to remake the file).
337 scripts/Kbuild.include: ;
338 include scripts/Kbuild.include
340 # Make variables (CC, etc...)
342 AS = $(CROSS_COMPILE)as
344 ifneq ($(shell $(CROSS_COMPILE)ld.bfd -v 2> /dev/null),)
345 LD = $(CROSS_COMPILE)ld.bfd
347 LD = $(CROSS_COMPILE)ld
349 CC = $(CROSS_COMPILE)gcc
351 AR = $(CROSS_COMPILE)ar
352 NM = $(CROSS_COMPILE)nm
353 LDR = $(CROSS_COMPILE)ldr
354 STRIP = $(CROSS_COMPILE)strip
355 OBJCOPY = $(CROSS_COMPILE)objcopy
356 OBJDUMP = $(CROSS_COMPILE)objdump
364 DTC ?= $(objtree)/scripts/dtc/dtc
367 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
368 -Wbitwise -Wno-return-void -D__CHECK_ENDIAN__ $(CF)
370 KBUILD_CPPFLAGS := -D__KERNEL__ -D__UBOOT__
372 KBUILD_CFLAGS := -Wall -Wstrict-prototypes \
373 -Wno-format-security \
374 -fno-builtin -ffreestanding $(CSTD_FLAG)
375 KBUILD_CFLAGS += -fshort-wchar -fno-strict-aliasing
376 KBUILD_AFLAGS := -D__ASSEMBLY__
378 # Don't generate position independent code
379 KBUILD_CFLAGS += $(call cc-option,-fno-PIE)
380 KBUILD_AFLAGS += $(call cc-option,-fno-PIE)
382 # Read UBOOTRELEASE from include/config/uboot.release (if it exists)
383 UBOOTRELEASE = $(shell cat include/config/uboot.release 2> /dev/null)
384 UBOOTVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
386 export VERSION PATCHLEVEL SUBLEVEL UBOOTRELEASE UBOOTVERSION
387 export ARCH CPU BOARD VENDOR SOC CPUDIR BOARDDIR
388 export CONFIG_SHELL HOSTCC HOSTCFLAGS HOSTLDFLAGS CROSS_COMPILE AS LD CC
389 export CPP AR NM LDR STRIP OBJCOPY OBJDUMP
390 export MAKE LEX YACC AWK PERL PYTHON PYTHON2 PYTHON3
391 export HOSTCXX HOSTCXXFLAGS CHECK CHECKFLAGS DTC DTC_FLAGS
393 export KBUILD_CPPFLAGS NOSTDINC_FLAGS UBOOTINCLUDE OBJCOPYFLAGS LDFLAGS
394 export KBUILD_CFLAGS KBUILD_AFLAGS
396 # When compiling out-of-tree modules, put MODVERDIR in the module
397 # tree rather than in the kernel tree. The kernel tree might
399 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
401 # Files to ignore in find ... statements
403 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
404 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
406 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
407 --exclude CVS --exclude .pc --exclude .hg --exclude .git
409 # ===========================================================================
410 # Rules shared between *config targets and build targets
412 # Basic helpers built in scripts/
413 PHONY += scripts_basic
415 $(Q)$(MAKE) $(build)=scripts/basic
416 $(Q)rm -f .tmp_quiet_recordmcount
418 # To avoid any implicit rule to kick in, define an empty command.
419 scripts/basic/%: scripts_basic ;
421 PHONY += outputmakefile
422 # outputmakefile generates a Makefile in the output directory, if using a
423 # separate output directory. This allows convenient use of make in the
426 ifneq ($(KBUILD_SRC),)
427 $(Q)ln -fsn $(srctree) source
428 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
429 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
432 # To make sure we do not include .config for any of the *config targets
433 # catch them early, and hand them over to scripts/kconfig/Makefile
434 # It is allowed to specify more targets when calling make, including
435 # mixing *config targets and build targets.
436 # For example 'make oldconfig all'.
437 # Detect when mixed targets is specified, and make a second invocation
438 # of make so .config is not included in this case either (for *config).
440 version_h := include/generated/version_autogenerated.h
441 timestamp_h := include/generated/timestamp_autogenerated.h
442 defaultenv_h := include/generated/defaultenv_autogenerated.h
444 no-dot-config-targets := clean clobber mrproper distclean \
445 help %docs check% coccicheck \
446 ubootversion backup tests check qcheck
452 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
453 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
458 ifeq ($(KBUILD_EXTMOD),)
459 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
461 ifneq ($(words $(MAKECMDGOALS)),1)
467 ifeq ($(mixed-targets),1)
468 # ===========================================================================
469 # We're called with mixed targets (*config and build targets).
470 # Handle them one by one.
472 PHONY += $(MAKECMDGOALS) __build_one_by_one
474 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
479 for i in $(MAKECMDGOALS); do \
480 $(MAKE) -f $(srctree)/Makefile $$i; \
484 ifeq ($(config-targets),1)
485 # ===========================================================================
486 # *config targets only - make sure prerequisites are updated, and descend
487 # in scripts/kconfig to make the *config target
489 KBUILD_DEFCONFIG := sandbox_defconfig
490 export KBUILD_DEFCONFIG KBUILD_KCONFIG
492 config: scripts_basic outputmakefile FORCE
493 $(Q)$(MAKE) $(build)=scripts/kconfig $@
495 %config: scripts_basic outputmakefile FORCE
496 $(Q)$(MAKE) $(build)=scripts/kconfig $@
499 # ===========================================================================
500 # Build targets only - this includes vmlinux, arch specific targets, clean
501 # targets and others. In general all targets except *config targets.
503 # Additional helpers built in scripts/
504 # Carefully list dependencies so we do not try to build scripts twice
507 scripts: scripts_basic include/config/auto.conf
508 $(Q)$(MAKE) $(build)=$(@)
510 ifeq ($(dot-config),1)
512 -include include/config/auto.conf
514 # Read in dependencies to all Kconfig* files, make sure to run
515 # oldconfig if changes are detected.
516 -include include/config/auto.conf.cmd
518 # To avoid any implicit rule to kick in, define an empty command
519 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
521 # If .config is newer than include/config/auto.conf, someone tinkered
522 # with it and forgot to run make oldconfig.
523 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
524 # we execute the config step to be sure to catch updated Kconfig files
525 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
526 $(Q)$(MAKE) -f $(srctree)/Makefile syncconfig
527 @# If the following part fails, include/config/auto.conf should be
528 @# deleted so "make silentoldconfig" will be re-run on the next build.
529 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf || \
530 { rm -f include/config/auto.conf; false; }
531 @# include/config.h has been updated after "make silentoldconfig".
532 @# We need to touch include/config/auto.conf so it gets newer
533 @# than include/config.h.
534 @# Otherwise, 'make silentoldconfig' would be invoked twice.
535 $(Q)touch include/config/auto.conf
537 u-boot.cfg spl/u-boot.cfg tpl/u-boot.cfg: include/config.h FORCE
538 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.autoconf $(@)
540 -include include/autoconf.mk
541 -include include/autoconf.mk.dep
543 # We want to include arch/$(ARCH)/config.mk only when include/config/auto.conf
544 # is up-to-date. When we switch to a different board configuration, old CONFIG
545 # macros are still remaining in include/config/auto.conf. Without the following
546 # gimmick, wrong config.mk would be included leading nasty warnings/errors.
547 ifneq ($(wildcard $(KCONFIG_CONFIG)),)
548 ifneq ($(wildcard include/config/auto.conf),)
549 autoconf_is_old := $(shell find . -path ./$(KCONFIG_CONFIG) -newer \
550 include/config/auto.conf)
551 ifeq ($(autoconf_is_old),)
553 include arch/$(ARCH)/Makefile
558 # These are set by the arch-specific config.mk. Make sure they are exported
559 # so they can be used when building an EFI application.
560 export EFI_LDS # Filename of EFI link script in arch/$(ARCH)/lib
561 export EFI_CRT0 # Filename of EFI CRT0 in arch/$(ARCH)/lib
562 export EFI_RELOC # Filename of EFU relocation code in arch/$(ARCH)/lib
563 export CFLAGS_EFI # Compiler flags to add when building EFI app
564 export CFLAGS_NON_EFI # Compiler flags to remove when building EFI app
565 export EFI_TARGET # binutils target if EFI is natively supported
567 # If board code explicitly specified LDSCRIPT or CONFIG_SYS_LDSCRIPT, use
568 # that (or fail if absent). Otherwise, search for a linker script in a
572 #LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds.debug
573 ifdef CONFIG_SYS_LDSCRIPT
574 # need to strip off double quotes
575 LDSCRIPT := $(srctree)/$(CONFIG_SYS_LDSCRIPT:"%"=%)
579 # If there is no specified link script, we look in a number of places for it
581 ifeq ($(wildcard $(LDSCRIPT)),)
582 LDSCRIPT := $(srctree)/board/$(BOARDDIR)/u-boot.lds
584 ifeq ($(wildcard $(LDSCRIPT)),)
585 LDSCRIPT := $(srctree)/$(CPUDIR)/u-boot.lds
587 ifeq ($(wildcard $(LDSCRIPT)),)
588 LDSCRIPT := $(srctree)/arch/$(ARCH)/cpu/u-boot.lds
593 # Dummy target needed, because used as prerequisite
594 include/config/auto.conf: ;
595 endif # $(dot-config)
598 # Xtensa linker script cannot be preprocessed with -ansi because of
599 # preprocessor operations on strings that don't make C identifiers.
601 ifeq ($(CONFIG_XTENSA),)
605 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
611 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
612 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks)
614 # change __FILE__ to the relative path from the srctree
615 KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
618 # $(KBUILD_AFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
619 # option to the assembler.
622 # Report stack usage if supported
623 # ARC tools based on GCC 7.1 has an issue with stack usage
624 # with naked functions, see commit message for more details
626 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-stack-usage.sh $(CC)),y)
627 KBUILD_CFLAGS += -fstack-usage
631 KBUILD_CFLAGS += $(call cc-option,-Wno-format-nonliteral)
632 ifeq ($(cc-name),clang)
633 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
634 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
635 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
636 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
637 KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior)
640 # turn jbsr into jsr for m68k
642 ifeq ($(findstring 3.4,$(shell $(CC) --version)),3.4)
643 KBUILD_AFLAGS += -Wa,-gstabs,-S
647 # Prohibit date/time macros, which would make the build non-deterministic
648 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
650 include scripts/Makefile.extrawarn
652 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
653 KBUILD_CPPFLAGS += $(KCPPFLAGS)
654 KBUILD_AFLAGS += $(KAFLAGS)
655 KBUILD_CFLAGS += $(KCFLAGS)
657 # Use UBOOTINCLUDE when you must reference the include/ directory.
658 # Needed to be compatible with the O= option
661 $(if $(KBUILD_SRC), -I$(srctree)/include) \
662 $(if $(CONFIG_$(SPL_)SYS_THUMB_BUILD), \
663 $(if $(CONFIG_HAS_THUMB2),, \
664 -I$(srctree)/arch/$(ARCH)/thumb1/include),) \
665 -I$(srctree)/arch/$(ARCH)/include \
666 -include $(srctree)/include/linux/kconfig.h
668 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
669 CHECKFLAGS += $(NOSTDINC_FLAGS)
672 cpp_flags := $(KBUILD_CPPFLAGS) $(PLATFORM_CPPFLAGS) $(UBOOTINCLUDE) \
674 c_flags := $(KBUILD_CFLAGS) $(cpp_flags)
676 #########################################################################
677 # U-Boot objects....order is important (i.e. start must be first)
679 HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
682 libs-$(HAVE_VENDOR_COMMON_LIB) += board/$(VENDOR)/common/
683 libs-$(CONFIG_OF_EMBED) += dts/
688 libs-y += drivers/dma/
689 libs-y += drivers/gpio/
690 libs-y += drivers/i2c/
691 libs-y += drivers/mtd/
692 libs-$(CONFIG_CMD_NAND) += drivers/mtd/nand/raw/
693 libs-y += drivers/mtd/onenand/
694 libs-$(CONFIG_CMD_UBI) += drivers/mtd/ubi/
695 libs-y += drivers/mtd/spi/
696 libs-y += drivers/net/
697 libs-y += drivers/net/phy/
698 libs-y += drivers/power/ \
699 drivers/power/domain/ \
700 drivers/power/fuel_gauge/ \
702 drivers/power/pmic/ \
703 drivers/power/battery/ \
704 drivers/power/regulator/
705 libs-y += drivers/spi/
706 libs-$(CONFIG_FMAN_ENET) += drivers/net/fm/
707 libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/
708 libs-$(CONFIG_SYS_FSL_MMDC) += drivers/ddr/fsl/
709 libs-$(CONFIG_ALTERA_SDRAM) += drivers/ddr/altera/
710 libs-y += drivers/serial/
711 libs-y += drivers/usb/dwc3/
712 libs-y += drivers/usb/common/
713 libs-y += drivers/usb/emul/
714 libs-y += drivers/usb/eth/
715 libs-y += drivers/usb/gadget/
716 libs-y += drivers/usb/gadget/udc/
717 libs-y += drivers/usb/host/
718 libs-y += drivers/usb/musb/
719 libs-y += drivers/usb/musb-new/
720 libs-y += drivers/usb/phy/
721 libs-y += drivers/usb/ulpi/
725 libs-$(CONFIG_API) += api/
726 libs-$(CONFIG_HAS_POST) += post/
727 libs-$(CONFIG_UNIT_TEST) += test/ test/dm/
728 libs-$(CONFIG_UT_ENV) += test/env/
729 libs-$(CONFIG_UT_OVERLAY) += test/overlay/
731 libs-y += $(if $(BOARDDIR),board/$(BOARDDIR)/)
733 libs-y := $(sort $(libs-y))
735 u-boot-dirs := $(patsubst %/,%,$(filter %/, $(libs-y))) tools examples
737 u-boot-alldirs := $(sort $(u-boot-dirs) $(patsubst %/,%,$(filter %/, $(libs-))))
739 libs-y := $(patsubst %/, %/built-in.o, $(libs-y))
741 u-boot-init := $(head-y)
742 u-boot-main := $(libs-y)
746 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
747 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
749 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
751 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
753 ifdef CONFIG_CC_COVERAGE
754 KBUILD_CFLAGS += --coverage
755 PLATFORM_LIBGCC += -lgcov
759 export PLATFORM_LIBGCC
761 # Special flags for CPP when processing the linker script.
762 # Pass the version down so we can handle backwards compatibility
765 -include $(srctree)/include/u-boot/u-boot.lds.h \
767 $(shell $(LD) --version | \
768 sed -ne 's/GNU ld version \([0-9][0-9]*\)\.\([0-9][0-9]*\).*/-DLD_MAJOR=\1 -DLD_MINOR=\2/p')
770 #########################################################################
771 #########################################################################
773 ifneq ($(CONFIG_BOARD_SIZE_LIMIT),)
775 @actual=`wc -c $@ | awk '{print $$1}'`; \
776 limit=`printf "%d" $(CONFIG_BOARD_SIZE_LIMIT)`; \
777 if test $$actual -gt $$limit; then \
778 echo "$@ exceeds file size limit:" >&2 ; \
779 echo " limit: $$limit bytes" >&2 ; \
780 echo " actual: $$actual bytes" >&2 ; \
781 echo " excess: $$((actual - limit)) bytes" >&2; \
788 # Statically apply RELA-style relocations (currently arm64 only)
789 # This is useful for arm64 where static relocation needs to be performed on
790 # the raw binary, but certain simulators only accept an ELF file (but don't
791 # do the relocation).
792 ifneq ($(CONFIG_STATIC_RELA),)
793 # $(1) is u-boot ELF, $(2) is u-boot bin, $(3) is text base
795 start=$$($(NM) $(1) | grep __rel_dyn_start | cut -f 1 -d ' '); \
796 end=$$($(NM) $(1) | grep __rel_dyn_end | cut -f 1 -d ' '); \
797 tools/relocate-rela $(2) $(3) $$start $$end
802 # Always append ALL so that arch config.mk's can add custom ones
803 ALL-y += u-boot.srec u-boot.bin u-boot.sym System.map binary_size_check
805 ALL-$(CONFIG_ONENAND_U_BOOT) += u-boot-onenand.bin
806 ifeq ($(CONFIG_SPL_FSL_PBL),y)
807 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot-with-spl-pbl.bin
809 ifneq ($(CONFIG_SECURE_BOOT), y)
810 # For Secure Boot The Image needs to be signed and Header must also
811 # be included. So The image has to be built explicitly
812 ALL-$(CONFIG_RAMBOOT_PBL) += u-boot.pbl
815 ALL-$(CONFIG_SPL) += spl/u-boot-spl.bin
816 ifeq ($(CONFIG_MX6)$(CONFIG_SECURE_BOOT), yy)
817 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
819 ifeq ($(CONFIG_MX7)$(CONFIG_SECURE_BOOT), yy)
820 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot-ivt.img
822 ALL-$(CONFIG_SPL_FRAMEWORK) += u-boot.img
825 ALL-$(CONFIG_TPL) += tpl/u-boot-tpl.bin
826 ALL-$(CONFIG_OF_SEPARATE) += u-boot.dtb
827 ifeq ($(CONFIG_SPL_FRAMEWORK),y)
828 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb.img
830 ALL-$(CONFIG_OF_HOSTFILE) += u-boot.dtb
831 ifneq ($(CONFIG_SPL_TARGET),)
832 ALL-$(CONFIG_SPL) += $(CONFIG_SPL_TARGET:"%"=%)
834 ALL-$(CONFIG_REMAKE_ELF) += u-boot.elf
835 ALL-$(CONFIG_EFI_APP) += u-boot-app.efi
836 ALL-$(CONFIG_EFI_STUB) += u-boot-payload.efi
838 ifneq ($(BUILD_ROM)$(CONFIG_BUILD_ROM),)
839 ALL-$(CONFIG_X86_RESET_VECTOR) += u-boot.rom
842 # Build a combined spl + u-boot image for sunxi
843 ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy)
844 ALL-y += u-boot-sunxi-with-spl.bin
847 # enable combined SPL/u-boot/dtb rules for tegra
848 ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy)
849 ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin
850 ALL-$(CONFIG_OF_SEPARATE) += u-boot-dtb-tegra.bin
853 ALL-$(CONFIG_ARCH_MEDIATEK) += u-boot-mtk.bin
855 # Add optional build target if defined in board/cpu/soc headers
856 ifneq ($(CONFIG_BUILD_TARGET),)
857 ALL-y += $(CONFIG_BUILD_TARGET:"%"=%)
860 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
861 ALL-y += init_sp_bss_offset_check
864 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
865 ALL-y += u-boot-with-dtb.bin
868 LDFLAGS_u-boot += $(LDFLAGS_FINAL)
870 # Avoid 'Not enough room for program headers' error on binutils 2.28 onwards.
871 LDFLAGS_u-boot += $(call ld-option, --no-dynamic-linker)
873 ifeq ($(CONFIG_ARC)$(CONFIG_NIOS2)$(CONFIG_X86)$(CONFIG_XTENSA),)
874 LDFLAGS_u-boot += -Ttext $(CONFIG_SYS_TEXT_BASE)
877 # Normally we fill empty space with 0xff
878 quiet_cmd_objcopy = OBJCOPY $@
879 cmd_objcopy = $(OBJCOPY) --gap-fill=0xff $(OBJCOPYFLAGS) \
880 $(OBJCOPYFLAGS_$(@F)) $< $@
882 # Provide a version which does not do this, for use by EFI
883 quiet_cmd_zobjcopy = OBJCOPY $@
884 cmd_zobjcopy = $(OBJCOPY) $(OBJCOPYFLAGS) $(OBJCOPYFLAGS_$(@F)) $< $@
886 quiet_cmd_efipayload = OBJCOPY $@
887 cmd_efipayload = $(OBJCOPY) -I binary -O $(EFIPAYLOAD_BFDTARGET) -B $(EFIPAYLOAD_BFDARCH) $< $@
889 MKIMAGEOUTPUT ?= /dev/null
891 quiet_cmd_mkimage = MKIMAGE $@
892 cmd_mkimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -d $< $@ \
893 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
895 quiet_cmd_mkfitimage = MKIMAGE $@
896 cmd_mkfitimage = $(objtree)/tools/mkimage $(MKIMAGEFLAGS_$(@F)) -f $(U_BOOT_ITS) -E $@ -p $(CONFIG_FIT_EXTERNAL_OFFSET)\
897 >$(MKIMAGEOUTPUT) $(if $(KBUILD_VERBOSE:0=), && cat $(MKIMAGEOUTPUT))
899 quiet_cmd_cat = CAT $@
900 cmd_cat = cat $(filter-out $(PHONY), $^) > $@
902 append = cat $(filter-out $< $(PHONY), $^) >> $@
904 quiet_cmd_pad_cat = CAT $@
905 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
909 quiet_cmd_cfgcheck = CFGCHK $2
910 cmd_cfgcheck = $(srctree)/scripts/check-config.sh $2 \
911 $(srctree)/scripts/config_whitelist.txt $(srctree)
914 ifeq ($(CONFIG_DM_I2C_COMPAT)$(CONFIG_SANDBOX),y)
915 @echo >&2 "===================== WARNING ======================"
916 @echo >&2 "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
917 @echo >&2 "(possibly in a subsequent patch in your series)"
918 @echo >&2 "before sending patches to the mailing list."
919 @echo >&2 "===================================================="
921 ifeq ($(CONFIG_MMC),y)
922 ifneq ($(CONFIG_DM_MMC)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
923 @echo >&2 "===================== WARNING ======================"
924 @echo >&2 "This board does not use CONFIG_DM_MMC. Please update"
925 @echo >&2 "the board to use CONFIG_DM_MMC before the v2019.04 release."
926 @echo >&2 "Failure to update by the deadline may result in board removal."
927 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
928 @echo >&2 "===================================================="
931 ifeq ($(CONFIG_USB),y)
932 ifneq ($(CONFIG_DM_USB)$(CONFIG_OF_CONTROL)$(CONFIG_BLK),yyy)
933 @echo >&2 "===================== WARNING ======================"
934 @echo >&2 "This board does not use CONFIG_DM_USB. Please update"
935 @echo >&2 "the board to use CONFIG_DM_USB before the v2019.07 release."
936 @echo >&2 "Failure to update by the deadline may result in board removal."
937 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
938 @echo >&2 "===================================================="
941 ifeq ($(CONFIG_LIBATA)$(CONFIG_MVSATA_IDE),y)
942 ifneq ($(CONFIG_DM_SCSI),y)
943 @echo >&2 "===================== WARNING ======================"
944 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update"
945 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
946 @echo >&2 "Failure to update by the deadline may result in board removal."
947 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
948 @echo >&2 "===================================================="
951 ifeq ($(CONFIG_PCI),y)
952 ifneq ($(CONFIG_DM_PCI),y)
953 @echo >&2 "===================== WARNING ======================"
954 @echo >&2 "This board does not use CONFIG_DM_PCI Please update"
955 @echo >&2 "the board to use CONFIG_DM_PCI before the v2019.07 release."
956 @echo >&2 "Failure to update by the deadline may result in board removal."
957 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
958 @echo >&2 "===================================================="
961 ifneq ($(CONFIG_LCD)$(CONFIG_VIDEO),)
962 ifneq ($(CONFIG_DM_VIDEO),y)
963 @echo >&2 "===================== WARNING ======================"
964 @echo >&2 "This board does not use CONFIG_DM_VIDEO Please update"
965 @echo >&2 "the board to use CONFIG_DM_VIDEO before the v2019.07 release."
966 @echo >&2 "Failure to update by the deadline may result in board removal."
967 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
968 @echo >&2 "===================================================="
971 ifeq ($(CONFIG_OF_EMBED),y)
972 @echo >&2 "===================== WARNING ======================"
973 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
974 @echo >&2 "be used for debugging purposes. Please use"
975 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
976 @echo >&2 "See doc/README.fdt-control for more info."
977 @echo >&2 "===================================================="
979 ifeq ($(CONFIG_SPI),y)
980 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
981 @echo >&2 "===================== WARNING ======================"
982 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
983 @echo >&2 "the board before v2019.04 for no dm conversion"
984 @echo >&2 "and v2019.07 for partially dm converted drivers."
985 @echo >&2 "Failure to update can lead to driver/board removal"
986 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
987 @echo >&2 "===================================================="
990 ifeq ($(CONFIG_SPI_FLASH),y)
991 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
992 @echo >&2 "===================== WARNING ======================"
993 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
994 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
995 @echo >&2 "Failure to update by the deadline may result in board removal."
996 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
997 @echo >&2 "===================================================="
1000 @# Check that this build does not use CONFIG options that we do not
1001 @# know about unless they are in Kconfig. All the existing CONFIG
1002 @# options are whitelisted, so new ones should not be added.
1003 $(call cmd,cfgcheck,u-boot.cfg)
1009 $(Q)$(MAKE) $(build)=dts dtbs
1011 quiet_cmd_copy = COPY $@
1014 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
1016 fit-dtb.blob: dts/dt.dtb FORCE
1017 $(call if_changed,mkimage)
1019 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1021 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1023 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
1024 $(call if_changed,cat)
1026 u-boot.bin: u-boot-fit-dtb.bin FORCE
1027 $(call if_changed,copy)
1028 else ifeq ($(CONFIG_OF_SEPARATE),y)
1029 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1030 $(call if_changed,cat)
1032 u-boot.bin: u-boot-dtb.bin FORCE
1033 $(call if_changed,copy)
1035 u-boot.bin: u-boot-nodtb.bin FORCE
1036 $(call if_changed,copy)
1040 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1043 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1045 quiet_cmd_copy = COPY $@
1048 u-boot.dtb: dts/dt.dtb
1051 OBJCOPYFLAGS_u-boot.hex := -O ihex
1053 OBJCOPYFLAGS_u-boot.srec := -O srec
1055 u-boot.hex u-boot.srec: u-boot FORCE
1056 $(call if_changed,objcopy)
1058 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1060 u-boot-elf.srec: u-boot.elf FORCE
1061 $(call if_changed,objcopy)
1063 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1065 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1066 $(call if_changed,objcopy)
1068 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1069 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1070 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1072 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1074 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1075 $(call if_changed,objcopy)
1077 binary_size_check: u-boot-nodtb.bin FORCE
1078 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1079 map_size=$(shell cat u-boot.map | \
1080 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1083 if [ "" != "$$map_size" ]; then \
1084 if test $$map_size -ne $$file_size; then \
1085 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1086 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1091 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1092 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1093 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1095 subtract_sys_malloc_f_len = true
1097 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1098 # so low that the DTB could probably use 90%+ of the available space, for
1099 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1100 # safe for now and tweak this later if space becomes tight.
1101 # A rejected alternative would be to check that some absolute minimum stack
1102 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1103 # deliberately build-specific, to take account of build-to-build stack usage
1104 # differences due to different feature sets, there is no common absolute value
1106 init_sp_bss_offset_check: u-boot.dtb FORCE
1107 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1108 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1109 $(subtract_sys_malloc_f_len) ; \
1110 quarter_space=$$(($${space} / 4)) ; \
1111 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1112 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1113 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1118 u-boot-nodtb.bin: u-boot FORCE
1119 $(call if_changed,objcopy)
1120 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1125 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1129 # ---------------------------------------------------------------------------
1130 # Use 'make BINMAN_DEBUG=1' to enable debugging
1131 quiet_cmd_binman = BINMAN $@
1132 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1133 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1134 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1136 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1138 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1140 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1141 $(call if_changed,objcopy)
1144 # U-Boot entry point, needed for booting of full-blown U-Boot
1145 # from the SPL U-Boot version.
1147 ifndef CONFIG_SYS_UBOOT_START
1148 CONFIG_SYS_UBOOT_START := 0
1151 # Boards with more complex image requirments can provide an .its source file
1152 # or a generator script
1153 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1154 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1156 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1157 U_BOOT_ITS := u-boot.its
1158 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1159 U_BOOT_ITS_DEPS += u-boot
1161 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1162 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1163 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1167 ifdef CONFIG_SPL_LOAD_FIT
1168 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1169 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1170 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1171 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1173 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1174 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1175 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1176 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1177 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1178 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1179 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1180 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1183 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1185 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1186 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1188 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1189 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1190 $(if $(KEYDIR),-k $(KEYDIR))
1192 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1193 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1195 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1196 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1197 $(call if_changed,mkimage)
1199 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1200 $(call if_changed,mkfitimage)
1203 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1204 $(call if_changed,mkimage)
1206 u-boot.sha1: u-boot.bin
1207 tools/ubsha1 u-boot.bin
1210 $(OBJDUMP) -d $< > $@
1212 ifneq ($(CONFIG_SPL_PAYLOAD),)
1213 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1215 SPL_PAYLOAD := u-boot.bin
1218 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1219 --pad-to=$(CONFIG_SPL_PAD_TO)
1220 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1221 $(call if_changed,pad_cat)
1223 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1224 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1226 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1227 $(call if_changed,mkimage)
1229 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1231 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1232 $(call if_changed,objcopy)
1234 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1236 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1237 $(call if_changed,objcopy)
1239 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1240 $(call if_changed,cat)
1242 CLEAN_FILES += lpc32xx-*
1245 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1246 --pad-to=$(CONFIG_TPL_PAD_TO)
1247 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1248 $(call if_changed,pad_cat)
1250 SPL: spl/u-boot-spl.bin FORCE
1251 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1253 ifeq ($(CONFIG_ARCH_IMX8M), y)
1254 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1255 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1258 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1259 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1261 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1263 u-boot.ubl: u-boot-with-spl.bin FORCE
1264 $(call if_changed,mkimage)
1266 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1267 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1268 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1269 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1270 $(call if_changed,mkimage)
1272 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1273 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1274 $(call if_changed,pad_cat)
1276 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1277 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1278 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1279 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1281 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1282 # Both images are created using mkimage (crc etc), so that the ROM
1283 # bootloader can check its integrity. Padding needs to be done to the
1284 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1285 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1286 # The resulting image containing both U-Boot images is called u-boot.spr
1287 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1288 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1289 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1290 $(call if_changed,mkimage)
1292 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1294 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1295 $(call if_changed,pad_cat)
1297 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1298 quiet_cmd_socboot = SOCBOOT $@
1299 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1300 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1301 u-boot.img > $@ || rm -f $@
1302 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1303 $(call if_changed,socboot)
1306 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1307 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1308 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1309 $(call if_changed,binman)
1311 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1312 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1313 u-boot-br.bin: u-boot FORCE
1314 $(call if_changed,objcopy)
1318 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1319 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1320 # the middle. This is handled by binman based on an image description in the
1321 # board's device tree.
1322 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1323 rom: u-boot.rom FORCE
1325 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1326 $(call if_changed,copy)
1328 quiet_cmd_ldr = LD $@
1329 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1330 $(filter-out FORCE,$^) -o $@
1332 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1333 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1334 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1335 $(call if_changed,binman)
1337 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1338 u-boot-x86-16bit.bin: u-boot FORCE
1339 $(call if_changed,objcopy)
1342 ifneq ($(CONFIG_ARCH_SUNXI),)
1343 ifeq ($(CONFIG_ARM64),)
1344 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1345 $(call if_changed,binman)
1347 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1348 $(call if_changed,cat)
1352 ifneq ($(CONFIG_TEGRA),)
1353 ifneq ($(CONFIG_BINMAN),)
1354 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1355 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1356 spl/%-spl %.bin FORCE
1357 $(call if_changed,binman)
1359 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1360 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1361 $(call if_changed,pad_cat)
1363 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1364 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1365 $(call if_changed,pad_cat)
1367 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1368 $(call if_changed,copy)
1372 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1373 u-boot-app.efi: u-boot FORCE
1374 $(call if_changed,zobjcopy)
1376 u-boot.bin.o: u-boot.bin FORCE
1377 $(call if_changed,efipayload)
1379 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1380 $(call if_changed_dep,cpp_lds)
1382 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1383 quiet_cmd_u-boot_payload ?= LD $@
1384 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1385 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1386 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1387 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1389 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1390 $(call if_changed,u-boot_payload)
1392 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1393 u-boot-payload.efi: u-boot-payload FORCE
1394 $(call if_changed,zobjcopy)
1396 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1397 $(call if_changed,cat)
1399 #Add a target to create boot binary having SPL binary in PBI format
1400 #concatenated with u-boot binary. It is need by PowerPC SoC having
1401 #internal SRAM <= 512KB.
1402 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1403 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1404 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1406 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1407 $(call if_changed,mkimage)
1410 UBOOT_BINLOAD := u-boot.img
1412 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1413 UBOOT_BINLOAD := u-boot-with-dtb.bin
1415 UBOOT_BINLOAD := u-boot.bin
1419 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1422 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1423 $(call if_changed,pad_cat)
1425 # PPC4xx needs the SPL at the end of the image, since the reset vector
1426 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1427 # and need to introduce a new build target with the full blown U-Boot
1428 # at the start padded up to the start of the SPL image. And then concat
1429 # the SPL image to the end.
1431 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1432 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1433 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1434 $(call if_changed,pad_cat)
1436 # Create a new ELF from a raw binary file.
1437 ifndef PLATFORM_ELFENTRY
1438 PLATFORM_ELFENTRY = "_start"
1440 quiet_cmd_u-boot-elf ?= LD $@
1441 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1442 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1443 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1444 u-boot.elf: u-boot.bin
1445 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1446 $(call if_changed,u-boot-elf)
1448 # MediaTek's ARM-based u-boot needs a header to contains its load address
1449 # which is parsed by the BootROM.
1450 # If the SPL build is enabled, the header will be added to the spl binary,
1451 # and the spl binary and the u-boot.img will be combined into one file.
1452 # Otherwise the header will be added to the u-boot.bin directly.
1454 ifeq ($(CONFIG_SPL),y)
1455 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1457 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1458 $(call if_changed,binman)
1460 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1461 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1462 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1464 u-boot-mtk.bin: u-boot.bin FORCE
1465 $(call if_changed,mkimage)
1468 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1470 # Rule to link u-boot
1471 # May be overridden by arch/$(ARCH)/config.mk
1472 quiet_cmd_u-boot__ ?= LD $@
1473 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1474 -T u-boot.lds $(u-boot-init) \
1475 --start-group $(u-boot-main) --end-group \
1476 $(PLATFORM_LIBS) -Map u-boot.map; \
1477 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1479 quiet_cmd_smap = GEN common/system_map.o
1481 smap=`$(call SYSTEM_MAP,u-boot) | \
1482 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1483 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1484 -c $(srctree)/common/system_map.c -o common/system_map.o
1486 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1487 +$(call if_changed,u-boot__)
1488 ifeq ($(CONFIG_KALLSYMS),y)
1490 $(call cmd,u-boot__) common/system_map.o
1493 ifeq ($(CONFIG_RISCV),y)
1494 @tools/prelink-riscv $@ 0
1497 quiet_cmd_sym ?= SYM $@
1498 cmd_sym ?= $(OBJDUMP) -t $< > $@
1499 u-boot.sym: u-boot FORCE
1500 $(call if_changed,sym)
1502 # The actual objects are generated when descending,
1503 # make sure no implicit rule kicks in
1504 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1506 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1507 # Preset locale variables to speed up the build process. Limit locale
1508 # tweaks to this spot to avoid wrong language settings when running
1509 # make menuconfig etc.
1510 # Error messages still appears in the original language
1512 PHONY += $(u-boot-dirs)
1513 $(u-boot-dirs): prepare scripts
1514 $(Q)$(MAKE) $(build)=$@
1517 # The "tools" are needed early
1518 $(filter-out tools, $(u-boot-dirs)): tools
1519 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1520 # is "yes"), so compile examples after U-Boot is compiled.
1521 examples: $(filter-out examples, $(u-boot-dirs))
1523 define filechk_uboot.release
1524 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1527 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1528 include/config/uboot.release: include/config/auto.conf FORCE
1529 $(call filechk,uboot.release)
1532 # Things we need to do before we recursively start building the kernel
1533 # or the modules are listed in "prepare".
1534 # A multi level approach is used. prepareN is processed before prepareN-1.
1535 # archprepare is used in arch Makefiles and when processed asm symlink,
1536 # version.h and scripts_basic is processed / created.
1538 # Listed in dependency order
1539 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1541 # prepare3 is used to check if we are building in a separate output directory,
1543 # 1) Check that make has not been executed in the kernel src $(srctree)
1544 prepare3: include/config/uboot.release
1545 ifneq ($(KBUILD_SRC),)
1546 @$(kecho) ' Using $(srctree) as source for U-Boot'
1547 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1548 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1549 echo >&2 " in the '$(srctree)' directory.";\
1554 # prepare2 creates a makefile if using a separate output directory
1555 prepare2: prepare3 outputmakefile
1557 prepare1: prepare2 $(version_h) $(timestamp_h) \
1558 include/config/auto.conf
1559 ifeq ($(wildcard $(LDSCRIPT)),)
1560 @echo >&2 " Could not find linker script."
1564 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1565 prepare1: $(defaultenv_h)
1568 archprepare: prepare1 scripts_basic
1570 prepare0: archprepare FORCE
1571 $(Q)$(MAKE) $(build)=.
1573 # All the preparing..
1576 # Generate some files
1577 # ---------------------------------------------------------------------------
1579 define filechk_version.h
1580 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1581 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1582 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1583 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1586 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1587 # The BSD date on the other hand behaves different and would produce errors
1588 # with the misused '-d' switch. Respect that and search a working date with
1589 # well known pre- and suffixes for the GNU variant of date.
1590 define filechk_timestamp.h
1591 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1592 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1594 for date in gdate date.gnu date; do \
1595 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1597 if test -n "$${DATE}"; then \
1598 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1599 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1600 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1601 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1602 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1607 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1608 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1609 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1610 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1611 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1615 define filechk_defaultenv.h
1619 sed -e 's/\\\x0/\n/' | \
1620 xxd -i ; echo ", 0x00" ; )
1623 $(version_h): include/config/uboot.release FORCE
1624 $(call filechk,version.h)
1626 $(timestamp_h): $(srctree)/Makefile FORCE
1627 $(call filechk,timestamp.h)
1629 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1630 $(call filechk,defaultenv.h)
1632 # ---------------------------------------------------------------------------
1633 quiet_cmd_cpp_lds = LDS $@
1634 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1635 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1637 u-boot.lds: $(LDSCRIPT) prepare FORCE
1638 $(call if_changed_dep,cpp_lds)
1640 spl/u-boot-spl.bin: spl/u-boot-spl
1642 spl/u-boot-spl: tools prepare \
1643 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1644 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1645 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1647 spl/sunxi-spl.bin: spl/u-boot-spl
1650 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1653 spl/u-boot-spl.sfp: spl/u-boot-spl
1656 spl/boot.bin: spl/u-boot-spl
1659 tpl/u-boot-tpl.bin: tools prepare \
1660 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1661 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1663 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1669 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1670 -name '*.[chS]' -print`
1674 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1675 -name '*.[chS]' -print`
1677 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1683 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1686 @$(call SYSTEM_MAP,$<) > $@
1688 #########################################################################
1690 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1691 # R_AARCH64_RELATIVE (64-bit).
1692 checkarmreloc: u-boot
1693 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1694 grep R_A | sort -u`"; \
1695 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1696 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1697 echo "$< contains unexpected relocations: $$RELOC"; \
1701 envtools: scripts_basic $(version_h) $(timestamp_h)
1702 $(Q)$(MAKE) $(build)=tools/env
1704 tools-only: scripts_basic $(version_h) $(timestamp_h)
1705 $(Q)$(MAKE) $(build)=tools
1707 tools-all: export HOST_TOOLS_ALL=y
1708 tools-all: envtools tools ;
1710 cross_tools: export CROSS_BUILD_TOOLS=y
1711 cross_tools: tools ;
1715 git log --no-merges U-Boot-1_1_5.. | \
1716 unexpand -a | sed -e 's/\s\s*$$//' > $@
1718 #########################################################################
1721 # Cleaning is done on three levels.
1722 # make clean Delete most generated files
1723 # Leave enough to build external modules
1724 # make mrproper Delete the current configuration, and all generated files
1725 # make distclean Remove editor backup files, patch leftover files and the like
1727 # Directories & files removed with 'make clean'
1728 CLEAN_DIRS += $(MODVERDIR) \
1729 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1730 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1732 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1733 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1735 # Directories & files removed with 'make mrproper'
1736 MRPROPER_DIRS += include/config include/generated spl tpl \
1738 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1739 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1741 # clean - Delete most, but leave enough to build external modules
1743 clean: rm-dirs := $(CLEAN_DIRS)
1744 clean: rm-files := $(CLEAN_FILES)
1746 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1748 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1750 PHONY += $(clean-dirs) clean archclean
1752 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1754 clean: $(clean-dirs)
1757 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1758 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1759 -o -name '*.ko.*' -o -name '*.su' \
1760 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1761 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1762 -o -name '*.symtypes' -o -name 'modules.order' \
1763 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1764 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1765 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1766 -type f -print | xargs rm -f
1768 # mrproper - Delete all generated files, including .config
1770 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1771 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1772 mrproper-dirs := $(addprefix _mrproper_,scripts)
1774 PHONY += $(mrproper-dirs) mrproper archmrproper
1776 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1778 mrproper: clean $(mrproper-dirs)
1781 @rm -f arch/*/include/asm/arch
1788 @find $(srctree) $(RCS_FIND_IGNORE) \
1789 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1790 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1791 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1792 -o -name '*.pyc' \) \
1793 -type f -print | xargs rm -f
1797 F=`basename $(srctree)` ; cd .. ; \
1798 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1801 @echo 'Cleaning targets:'
1802 @echo ' clean - Remove most generated files but keep the config'
1803 @echo ' mrproper - Remove all generated files + config + various backup files'
1804 @echo ' distclean - mrproper + remove editor backup and patch files'
1806 @echo 'Configuration targets:'
1807 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1809 @echo 'Test targets:'
1811 @echo ' check - Run all automated tests that use sandbox'
1812 @echo ' qcheck - Run quick automated tests that use sandbox'
1814 @echo 'Other generic targets:'
1815 @echo ' all - Build all necessary images depending on configuration'
1816 @echo ' tests - Build U-Boot for sandbox and run tests'
1817 @echo '* u-boot - Build the bare u-boot'
1818 @echo ' dir/ - Build all files in dir and below'
1819 @echo ' dir/file.[oisS] - Build specified target only'
1820 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1821 @echo ' (requires a recent binutils and recent build (System.map))'
1822 @echo ' tags/ctags - Generate ctags file for editors'
1823 @echo ' etags - Generate etags file for editors'
1824 @echo ' cscope - Generate cscope index'
1825 @echo ' ubootrelease - Output the release version string (use with make -s)'
1826 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1827 @echo " cfg - Don't build, just create the .cfg files"
1828 @echo " envtools - Build only the target-side environment tools"
1830 @echo 'Static analysers'
1831 @echo ' checkstack - Generate a list of stack hogs'
1832 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1834 @echo 'Documentation targets:'
1835 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1837 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1838 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1839 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1840 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1841 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1842 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1843 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1844 @echo ' 1: warnings which may be relevant and do not occur too often'
1845 @echo ' 2: warnings which occur quite often but may still be relevant'
1846 @echo ' 3: more obscure warnings, can most likely be ignored'
1847 @echo ' Multiple levels can be combined with W=12 or W=123'
1849 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1850 @echo 'For further info see the ./README file'
1856 $(srctree)/test/run quick
1858 # Documentation targets
1859 # ---------------------------------------------------------------------------
1860 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1861 linkcheckdocs dochelp refcheckdocs
1862 PHONY += $(DOC_TARGETS)
1863 $(DOC_TARGETS): scripts_basic FORCE
1864 $(Q)$(MAKE) $(build)=Documentation $@
1866 endif #ifeq ($(config-targets),1)
1867 endif #ifeq ($(mixed-targets),1)
1869 PHONY += checkstack ubootrelease ubootversion
1872 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1873 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1876 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1879 @echo $(UBOOTVERSION)
1882 # ---------------------------------------------------------------------------
1883 # Single targets are compatible with:
1884 # - build with mixed source and output
1885 # - build with separate output dir 'make O=...'
1886 # - external modules
1888 # target-dir => where to store outputfile
1889 # build-dir => directory in kernel source tree to use
1891 ifeq ($(KBUILD_EXTMOD),)
1892 build-dir = $(patsubst %/,%,$(dir $@))
1893 target-dir = $(dir $@)
1895 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1896 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1897 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1900 %.s: %.c prepare scripts FORCE
1901 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1902 %.i: %.c prepare scripts FORCE
1903 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1904 %.o: %.c prepare scripts FORCE
1905 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1906 %.lst: %.c prepare scripts FORCE
1907 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1908 %.s: %.S prepare scripts FORCE
1909 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1910 %.o: %.S prepare scripts FORCE
1911 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1912 %.symtypes: %.c prepare scripts FORCE
1913 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1916 /: prepare scripts FORCE
1918 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1919 $(build)=$(build-dir)
1920 %/: prepare scripts FORCE
1922 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1923 $(build)=$(build-dir)
1924 %.ko: prepare scripts FORCE
1926 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1927 $(build)=$(build-dir) $(@:.ko=.o)
1928 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1930 # Consistency checks
1931 # ---------------------------------------------------------------------------
1936 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1938 # FIXME Should go into a make.lib or something
1939 # ===========================================================================
1941 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1942 cmd_rmdirs = rm -rf $(rm-dirs)
1944 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1945 cmd_rmfiles = rm -f $(rm-files)
1947 # read all saved command lines
1949 targets := $(wildcard $(sort $(targets)))
1950 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1952 ifneq ($(cmd_files),)
1953 $(cmd_files): ; # Do not try to update included dependency files
1954 include $(cmd_files)
1957 endif # skip-makefile
1962 # Declare the contents of the .PHONY variable as phony. We keep that
1963 # information in a variable so we can use it in if_changed and friends.