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)$(CONFIG_DM_SCSI)$(CONFIG_MVSATA_IDE),y)
942 @echo >&2 "===================== WARNING ======================"
943 @echo >&2 "This board does not use CONFIG_DM_SCSI. Please update"
944 @echo >&2 "the storage controller to use CONFIG_DM_SCSI before the v2019.07 release."
945 @echo >&2 "Failure to update by the deadline may result in board removal."
946 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
947 @echo >&2 "===================================================="
949 ifeq ($(CONFIG_OF_EMBED),y)
950 @echo >&2 "===================== WARNING ======================"
951 @echo >&2 "CONFIG_OF_EMBED is enabled. This option should only"
952 @echo >&2 "be used for debugging purposes. Please use"
953 @echo >&2 "CONFIG_OF_SEPARATE for boards in mainline."
954 @echo >&2 "See doc/README.fdt-control for more info."
955 @echo >&2 "===================================================="
957 ifeq ($(CONFIG_SPI),y)
958 ifneq ($(CONFIG_DM_SPI)$(CONFIG_OF_CONTROL),yy)
959 @echo >&2 "===================== WARNING ======================"
960 @echo >&2 "This board does not use CONFIG_DM_SPI. Please update"
961 @echo >&2 "the board before v2019.04 for no dm conversion"
962 @echo >&2 "and v2019.07 for partially dm converted drivers."
963 @echo >&2 "Failure to update can lead to driver/board removal"
964 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
965 @echo >&2 "===================================================="
968 ifeq ($(CONFIG_SPI_FLASH),y)
969 ifneq ($(CONFIG_DM_SPI_FLASH)$(CONFIG_OF_CONTROL),yy)
970 @echo >&2 "===================== WARNING ======================"
971 @echo >&2 "This board does not use CONFIG_DM_SPI_FLASH. Please update"
972 @echo >&2 "the board to use CONFIG_SPI_FLASH before the v2019.07 release."
973 @echo >&2 "Failure to update by the deadline may result in board removal."
974 @echo >&2 "See doc/driver-model/MIGRATION.txt for more info."
975 @echo >&2 "===================================================="
978 @# Check that this build does not use CONFIG options that we do not
979 @# know about unless they are in Kconfig. All the existing CONFIG
980 @# options are whitelisted, so new ones should not be added.
981 $(call cmd,cfgcheck,u-boot.cfg)
987 $(Q)$(MAKE) $(build)=dts dtbs
989 quiet_cmd_copy = COPY $@
992 ifeq ($(CONFIG_MULTI_DTB_FIT),y)
994 fit-dtb.blob: dts/dt.dtb FORCE
995 $(call if_changed,mkimage)
997 MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
999 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
1001 u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
1002 $(call if_changed,cat)
1004 u-boot.bin: u-boot-fit-dtb.bin FORCE
1005 $(call if_changed,copy)
1006 else ifeq ($(CONFIG_OF_SEPARATE),y)
1007 u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
1008 $(call if_changed,cat)
1010 u-boot.bin: u-boot-dtb.bin FORCE
1011 $(call if_changed,copy)
1013 u-boot.bin: u-boot-nodtb.bin FORCE
1014 $(call if_changed,copy)
1018 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1021 $(Q)$(MAKE) $(build)=arch/arm/cpu/armv7/vf610 $@
1023 quiet_cmd_copy = COPY $@
1026 u-boot.dtb: dts/dt.dtb
1029 OBJCOPYFLAGS_u-boot.hex := -O ihex
1031 OBJCOPYFLAGS_u-boot.srec := -O srec
1033 u-boot.hex u-boot.srec: u-boot FORCE
1034 $(call if_changed,objcopy)
1036 OBJCOPYFLAGS_u-boot-elf.srec := $(OBJCOPYFLAGS_u-boot.srec)
1038 u-boot-elf.srec: u-boot.elf FORCE
1039 $(call if_changed,objcopy)
1041 OBJCOPYFLAGS_u-boot-spl.srec = $(OBJCOPYFLAGS_u-boot.srec)
1043 spl/u-boot-spl.srec: spl/u-boot-spl FORCE
1044 $(call if_changed,objcopy)
1046 OBJCOPYFLAGS_u-boot-nodtb.bin := -O binary \
1047 $(if $(CONFIG_X86_16BIT_INIT),-R .start16 -R .resetvec) \
1048 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR),-R .bootpg -R .resetvec)
1050 OBJCOPYFLAGS_u-boot-spl.hex = $(OBJCOPYFLAGS_u-boot.hex)
1052 spl/u-boot-spl.hex: spl/u-boot-spl FORCE
1053 $(call if_changed,objcopy)
1055 binary_size_check: u-boot-nodtb.bin FORCE
1056 @file_size=$(shell wc -c u-boot-nodtb.bin | awk '{print $$1}') ; \
1057 map_size=$(shell cat u-boot.map | \
1058 awk '/_image_copy_start/ {start = $$1} /_image_binary_end/ {end = $$1} END {if (start != "" && end != "") print "ibase=16; " toupper(end) " - " toupper(start)}' \
1061 if [ "" != "$$map_size" ]; then \
1062 if test $$map_size -ne $$file_size; then \
1063 echo "u-boot.map shows a binary size of $$map_size" >&2 ; \
1064 echo " but u-boot-nodtb.bin shows $$file_size" >&2 ; \
1069 ifneq ($(CONFIG_SYS_INIT_SP_BSS_OFFSET),)
1070 ifneq ($(CONFIG_SYS_MALLOC_F_LEN),)
1071 subtract_sys_malloc_f_len = space=$$(($${space} - $(CONFIG_SYS_MALLOC_F_LEN)))
1073 subtract_sys_malloc_f_len = true
1075 # The 1/4 margin below is somewhat arbitrary. The likely initial SP usage is
1076 # so low that the DTB could probably use 90%+ of the available space, for
1077 # current values of CONFIG_SYS_INIT_SP_BSS_OFFSET at least. However, let's be
1078 # safe for now and tweak this later if space becomes tight.
1079 # A rejected alternative would be to check that some absolute minimum stack
1080 # space was available. However, since CONFIG_SYS_INIT_SP_BSS_OFFSET is
1081 # deliberately build-specific, to take account of build-to-build stack usage
1082 # differences due to different feature sets, there is no common absolute value
1084 init_sp_bss_offset_check: u-boot.dtb FORCE
1085 @dtb_size=$(shell wc -c u-boot.dtb | awk '{print $$1}') ; \
1086 space=$(CONFIG_SYS_INIT_SP_BSS_OFFSET) ; \
1087 $(subtract_sys_malloc_f_len) ; \
1088 quarter_space=$$(($${space} / 4)) ; \
1089 if [ $${dtb_size} -gt $${quarter_space} ]; then \
1090 echo "u-boot.dtb is larger than 1 quarter of " >&2 ; \
1091 echo "(CONFIG_SYS_INIT_SP_BSS_OFFSET - CONFIG_SYS_MALLOC_F_LEN)" >&2 ; \
1096 u-boot-nodtb.bin: u-boot FORCE
1097 $(call if_changed,objcopy)
1098 $(call DO_STATIC_RELA,$<,$@,$(CONFIG_SYS_TEXT_BASE))
1103 $(LDR) -T $(CONFIG_CPU) -c $@ $< $(LDR_FLAGS)
1107 # ---------------------------------------------------------------------------
1108 # Use 'make BINMAN_DEBUG=1' to enable debugging
1109 quiet_cmd_binman = BINMAN $@
1110 cmd_binman = $(srctree)/tools/binman/binman -u -d u-boot.dtb -O . -m \
1111 -I . -I $(srctree) -I $(srctree)/board/$(BOARDDIR) \
1112 $(if $(BINMAN_DEBUG),-D) $(BINMAN_$(@F)) $<
1114 OBJCOPYFLAGS_u-boot.ldr.hex := -I binary -O ihex
1116 OBJCOPYFLAGS_u-boot.ldr.srec := -I binary -O srec
1118 u-boot.ldr.hex u-boot.ldr.srec: u-boot.ldr FORCE
1119 $(call if_changed,objcopy)
1122 # U-Boot entry point, needed for booting of full-blown U-Boot
1123 # from the SPL U-Boot version.
1125 ifndef CONFIG_SYS_UBOOT_START
1126 CONFIG_SYS_UBOOT_START := 0
1129 # Boards with more complex image requirments can provide an .its source file
1130 # or a generator script
1131 ifneq ($(CONFIG_SPL_FIT_SOURCE),"")
1132 U_BOOT_ITS = $(subst ",,$(CONFIG_SPL_FIT_SOURCE))
1134 ifneq ($(CONFIG_SPL_FIT_GENERATOR),"")
1135 U_BOOT_ITS := u-boot.its
1136 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-imx/mkimage_fit_atf.sh")
1137 U_BOOT_ITS_DEPS += u-boot-nodtb.bin
1139 ifeq ($(CONFIG_SPL_FIT_GENERATOR),"arch/arm/mach-rockchip/make_fit_atf.py")
1140 U_BOOT_ITS_DEPS += u-boot
1142 $(U_BOOT_ITS): $(U_BOOT_ITS_DEPS) FORCE
1143 $(srctree)/$(CONFIG_SPL_FIT_GENERATOR) \
1144 $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) > $@
1148 ifdef CONFIG_SPL_LOAD_FIT
1149 MKIMAGEFLAGS_u-boot.img = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
1150 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1151 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
1152 $(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
1154 MKIMAGEFLAGS_u-boot.img = -A $(ARCH) -T firmware -C none -O u-boot \
1155 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1156 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1157 MKIMAGEFLAGS_u-boot-ivt.img = -A $(ARCH) -T firmware_ivt -C none -O u-boot \
1158 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
1159 -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board"
1160 u-boot-ivt.img: MKIMAGEOUTPUT = u-boot-ivt.img.log
1161 CLEAN_FILES += u-boot-ivt.img.log u-boot-dtb.imx.log SPL.log u-boot.imx.log
1164 MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)
1166 MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1167 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
1169 MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
1170 -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1171 $(if $(KEYDIR),-k $(KEYDIR))
1173 MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1174 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
1176 u-boot-dtb.img u-boot.img u-boot.kwb u-boot.pbl u-boot-ivt.img: \
1177 $(if $(CONFIG_SPL_LOAD_FIT),u-boot-nodtb.bin dts/dt.dtb,u-boot.bin) FORCE
1178 $(call if_changed,mkimage)
1180 u-boot.itb: u-boot-nodtb.bin dts/dt.dtb $(U_BOOT_ITS) FORCE
1181 $(call if_changed,mkfitimage)
1184 u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
1185 $(call if_changed,mkimage)
1187 u-boot.sha1: u-boot.bin
1188 tools/ubsha1 u-boot.bin
1191 $(OBJDUMP) -d $< > $@
1193 ifneq ($(CONFIG_SPL_PAYLOAD),)
1194 SPL_PAYLOAD := $(CONFIG_SPL_PAYLOAD:"%"=%)
1196 SPL_PAYLOAD := u-boot.bin
1199 OBJCOPYFLAGS_u-boot-with-spl.bin = -I binary -O binary \
1200 --pad-to=$(CONFIG_SPL_PAD_TO)
1201 u-boot-with-spl.bin: spl/u-boot-spl.bin $(SPL_PAYLOAD) FORCE
1202 $(call if_changed,pad_cat)
1204 ifeq ($(CONFIG_ARCH_LPC32XX)$(CONFIG_SPL),yy)
1205 MKIMAGEFLAGS_lpc32xx-spl.img = -T lpc32xximage -a $(CONFIG_SPL_TEXT_BASE)
1207 lpc32xx-spl.img: spl/u-boot-spl.bin FORCE
1208 $(call if_changed,mkimage)
1210 OBJCOPYFLAGS_lpc32xx-boot-0.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1212 lpc32xx-boot-0.bin: lpc32xx-spl.img FORCE
1213 $(call if_changed,objcopy)
1215 OBJCOPYFLAGS_lpc32xx-boot-1.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1217 lpc32xx-boot-1.bin: lpc32xx-spl.img FORCE
1218 $(call if_changed,objcopy)
1220 lpc32xx-full.bin: lpc32xx-boot-0.bin lpc32xx-boot-1.bin u-boot.img FORCE
1221 $(call if_changed,cat)
1223 CLEAN_FILES += lpc32xx-*
1226 OBJCOPYFLAGS_u-boot-with-tpl.bin = -I binary -O binary \
1227 --pad-to=$(CONFIG_TPL_PAD_TO)
1228 tpl/u-boot-with-tpl.bin: tpl/u-boot-tpl.bin u-boot.bin FORCE
1229 $(call if_changed,pad_cat)
1231 SPL: spl/u-boot-spl.bin FORCE
1232 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1234 ifeq ($(CONFIG_ARCH_IMX8M), y)
1235 flash.bin: spl/u-boot-spl.bin u-boot.itb FORCE
1236 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1239 u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL u-boot.bin FORCE
1240 $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@
1242 MKIMAGEFLAGS_u-boot.ubl = -n $(UBL_CONFIG) -T ublimage -e $(CONFIG_SYS_TEXT_BASE)
1244 u-boot.ubl: u-boot-with-spl.bin FORCE
1245 $(call if_changed,mkimage)
1247 MKIMAGEFLAGS_u-boot-spl.ais = -s -n $(if $(CONFIG_AIS_CONFIG_FILE), \
1248 $(srctree)/$(CONFIG_AIS_CONFIG_FILE:"%"=%),"/dev/null") \
1249 -T aisimage -e $(CONFIG_SPL_TEXT_BASE)
1250 spl/u-boot-spl.ais: spl/u-boot-spl.bin FORCE
1251 $(call if_changed,mkimage)
1253 OBJCOPYFLAGS_u-boot.ais = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO)
1254 u-boot.ais: spl/u-boot-spl.ais u-boot.img FORCE
1255 $(call if_changed,pad_cat)
1257 u-boot-signed.sb: u-boot.bin spl/u-boot-spl.bin
1258 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot-signed.sb
1259 u-boot.sb: u-boot.bin spl/u-boot-spl.bin
1260 $(Q)$(MAKE) $(build)=arch/arm/cpu/arm926ejs/mxs u-boot.sb
1262 # On x600 (SPEAr600) U-Boot is appended to U-Boot SPL.
1263 # Both images are created using mkimage (crc etc), so that the ROM
1264 # bootloader can check its integrity. Padding needs to be done to the
1265 # SPL image (with mkimage header) and not the binary. Otherwise the resulting image
1266 # which is loaded/copied by the ROM bootloader to SRAM doesn't fit.
1267 # The resulting image containing both U-Boot images is called u-boot.spr
1268 MKIMAGEFLAGS_u-boot-spl.img = -A $(ARCH) -T firmware -C none \
1269 -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE) -n XLOADER
1270 spl/u-boot-spl.img: spl/u-boot-spl.bin FORCE
1271 $(call if_changed,mkimage)
1273 OBJCOPYFLAGS_u-boot.spr = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1275 u-boot.spr: spl/u-boot-spl.img u-boot.img FORCE
1276 $(call if_changed,pad_cat)
1278 ifneq ($(CONFIG_ARCH_SOCFPGA),)
1279 quiet_cmd_socboot = SOCBOOT $@
1280 cmd_socboot = cat spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1281 spl/u-boot-spl.sfp spl/u-boot-spl.sfp \
1282 u-boot.img > $@ || rm -f $@
1283 u-boot-with-spl.sfp: spl/u-boot-spl.sfp u-boot.img FORCE
1284 $(call if_changed,socboot)
1287 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1288 u-boot-with-dtb.bin: u-boot.bin u-boot.dtb \
1289 $(if $(CONFIG_MPC85XX_HAVE_RESET_VECTOR), u-boot-br.bin) FORCE
1290 $(call if_changed,binman)
1292 ifeq ($(CONFIG_MPC85XX_HAVE_RESET_VECTOR),y)
1293 OBJCOPYFLAGS_u-boot-br.bin := -O binary -j .bootpg -j .resetvec
1294 u-boot-br.bin: u-boot FORCE
1295 $(call if_changed,objcopy)
1299 # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including
1300 # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in
1301 # the middle. This is handled by binman based on an image description in the
1302 # board's device tree.
1303 ifneq ($(CONFIG_X86_RESET_VECTOR),)
1304 rom: u-boot.rom FORCE
1306 refcode.bin: $(srctree)/board/$(BOARDDIR)/refcode.bin FORCE
1307 $(call if_changed,copy)
1309 quiet_cmd_ldr = LD $@
1310 cmd_ldr = $(LD) $(LDFLAGS_$(@F)) \
1311 $(filter-out FORCE,$^) -o $@
1313 u-boot.rom: u-boot-x86-16bit.bin u-boot.bin \
1314 $(if $(CONFIG_SPL_X86_16BIT_INIT),spl/u-boot-spl.bin) \
1315 $(if $(CONFIG_HAVE_REFCODE),refcode.bin) FORCE
1316 $(call if_changed,binman)
1318 OBJCOPYFLAGS_u-boot-x86-16bit.bin := -O binary -j .start16 -j .resetvec
1319 u-boot-x86-16bit.bin: u-boot FORCE
1320 $(call if_changed,objcopy)
1323 ifneq ($(CONFIG_ARCH_SUNXI),)
1324 ifeq ($(CONFIG_ARM64),)
1325 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.img u-boot.dtb FORCE
1326 $(call if_changed,binman)
1328 u-boot-sunxi-with-spl.bin: spl/sunxi-spl.bin u-boot.itb FORCE
1329 $(call if_changed,cat)
1333 ifneq ($(CONFIG_TEGRA),)
1334 ifneq ($(CONFIG_BINMAN),)
1335 # Makes u-boot-dtb-tegra.bin u-boot-tegra.bin u-boot-nodtb-tegra.bin
1336 %-dtb-tegra.bin %-tegra.bin %-nodtb-tegra.bin: \
1337 spl/%-spl %.bin FORCE
1338 $(call if_changed,binman)
1340 OBJCOPYFLAGS_u-boot-nodtb-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1341 u-boot-nodtb-tegra.bin: spl/u-boot-spl u-boot-nodtb.bin FORCE
1342 $(call if_changed,pad_cat)
1344 OBJCOPYFLAGS_u-boot-tegra.bin = -O binary --pad-to=$(CONFIG_SYS_TEXT_BASE)
1345 u-boot-tegra.bin: spl/u-boot-spl u-boot.bin FORCE
1346 $(call if_changed,pad_cat)
1348 u-boot-dtb-tegra.bin: u-boot-tegra.bin FORCE
1349 $(call if_changed,copy)
1353 OBJCOPYFLAGS_u-boot-app.efi := $(OBJCOPYFLAGS_EFI)
1354 u-boot-app.efi: u-boot FORCE
1355 $(call if_changed,zobjcopy)
1357 u-boot.bin.o: u-boot.bin FORCE
1358 $(call if_changed,efipayload)
1360 u-boot-payload.lds: $(LDSCRIPT_EFI) FORCE
1361 $(call if_changed_dep,cpp_lds)
1363 # Rule to link the EFI payload which contains a stub and a U-Boot binary
1364 quiet_cmd_u-boot_payload ?= LD $@
1365 cmd_u-boot_payload ?= $(LD) $(LDFLAGS_EFI_PAYLOAD) -o $@ \
1366 -T u-boot-payload.lds arch/x86/cpu/call32.o \
1367 lib/efi/efi.o lib/efi/efi_stub.o u-boot.bin.o \
1368 $(addprefix arch/$(ARCH)/lib/,$(EFISTUB))
1370 u-boot-payload: u-boot.bin.o u-boot-payload.lds FORCE
1371 $(call if_changed,u-boot_payload)
1373 OBJCOPYFLAGS_u-boot-payload.efi := $(OBJCOPYFLAGS_EFI)
1374 u-boot-payload.efi: u-boot-payload FORCE
1375 $(call if_changed,zobjcopy)
1377 u-boot-img.bin: spl/u-boot-spl.bin u-boot.img FORCE
1378 $(call if_changed,cat)
1380 #Add a target to create boot binary having SPL binary in PBI format
1381 #concatenated with u-boot binary. It is need by PowerPC SoC having
1382 #internal SRAM <= 512KB.
1383 MKIMAGEFLAGS_u-boot-spl.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
1384 -R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage \
1385 -A $(ARCH) -a $(CONFIG_SPL_TEXT_BASE)
1387 spl/u-boot-spl.pbl: spl/u-boot-spl.bin FORCE
1388 $(call if_changed,mkimage)
1391 UBOOT_BINLOAD := u-boot.img
1393 ifeq ($(CONFIG_MPC85xx)$(CONFIG_OF_SEPARATE),yy)
1394 UBOOT_BINLOAD := u-boot-with-dtb.bin
1396 UBOOT_BINLOAD := u-boot.bin
1400 OBJCOPYFLAGS_u-boot-with-spl-pbl.bin = -I binary -O binary --pad-to=$(CONFIG_SPL_PAD_TO) \
1403 u-boot-with-spl-pbl.bin: spl/u-boot-spl.pbl $(UBOOT_BINLOAD) FORCE
1404 $(call if_changed,pad_cat)
1406 # PPC4xx needs the SPL at the end of the image, since the reset vector
1407 # is located at 0xfffffffc. So we can't use the "u-boot-img.bin" target
1408 # and need to introduce a new build target with the full blown U-Boot
1409 # at the start padded up to the start of the SPL image. And then concat
1410 # the SPL image to the end.
1412 OBJCOPYFLAGS_u-boot-img-spl-at-end.bin := -I binary -O binary \
1413 --pad-to=$(CONFIG_UBOOT_PAD_TO) --gap-fill=0xff
1414 u-boot-img-spl-at-end.bin: u-boot.img spl/u-boot-spl.bin FORCE
1415 $(call if_changed,pad_cat)
1417 # Create a new ELF from a raw binary file.
1418 ifndef PLATFORM_ELFENTRY
1419 PLATFORM_ELFENTRY = "_start"
1421 quiet_cmd_u-boot-elf ?= LD $@
1422 cmd_u-boot-elf ?= $(LD) u-boot-elf.o -o $@ \
1423 --defsym=$(PLATFORM_ELFENTRY)=$(CONFIG_SYS_TEXT_BASE) \
1424 -Ttext=$(CONFIG_SYS_TEXT_BASE)
1425 u-boot.elf: u-boot.bin
1426 $(Q)$(OBJCOPY) -I binary $(PLATFORM_ELFFLAGS) $< u-boot-elf.o
1427 $(call if_changed,u-boot-elf)
1429 # MediaTek's ARM-based u-boot needs a header to contains its load address
1430 # which is parsed by the BootROM.
1431 # If the SPL build is enabled, the header will be added to the spl binary,
1432 # and the spl binary and the u-boot.img will be combined into one file.
1433 # Otherwise the header will be added to the u-boot.bin directly.
1435 ifeq ($(CONFIG_SPL),y)
1436 spl/u-boot-spl-mtk.bin: spl/u-boot-spl
1438 u-boot-mtk.bin: u-boot.dtb u-boot.img spl/u-boot-spl-mtk.bin FORCE
1439 $(call if_changed,binman)
1441 MKIMAGEFLAGS_u-boot-mtk.bin = -T mtk_image \
1442 -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) \
1443 -n "$(patsubst "%",%,$(CONFIG_MTK_BROM_HEADER_INFO))"
1445 u-boot-mtk.bin: u-boot.bin FORCE
1446 $(call if_changed,mkimage)
1449 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(ARCH)/Makefile.postlink)
1451 # Rule to link u-boot
1452 # May be overridden by arch/$(ARCH)/config.mk
1453 quiet_cmd_u-boot__ ?= LD $@
1454 cmd_u-boot__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_u-boot) -o $@ \
1455 -T u-boot.lds $(u-boot-init) \
1456 --start-group $(u-boot-main) --end-group \
1457 $(PLATFORM_LIBS) -Map u-boot.map; \
1458 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
1460 quiet_cmd_smap = GEN common/system_map.o
1462 smap=`$(call SYSTEM_MAP,u-boot) | \
1463 awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \
1464 $(CC) $(c_flags) -DSYSTEM_MAP="\"$${smap}\"" \
1465 -c $(srctree)/common/system_map.c -o common/system_map.o
1467 u-boot: $(u-boot-init) $(u-boot-main) u-boot.lds FORCE
1468 +$(call if_changed,u-boot__)
1469 ifeq ($(CONFIG_KALLSYMS),y)
1471 $(call cmd,u-boot__) common/system_map.o
1474 ifeq ($(CONFIG_RISCV),y)
1475 @tools/prelink-riscv $@ 0
1478 quiet_cmd_sym ?= SYM $@
1479 cmd_sym ?= $(OBJDUMP) -t $< > $@
1480 u-boot.sym: u-boot FORCE
1481 $(call if_changed,sym)
1483 # The actual objects are generated when descending,
1484 # make sure no implicit rule kicks in
1485 $(sort $(u-boot-init) $(u-boot-main)): $(u-boot-dirs) ;
1487 # Handle descending into subdirectories listed in $(vmlinux-dirs)
1488 # Preset locale variables to speed up the build process. Limit locale
1489 # tweaks to this spot to avoid wrong language settings when running
1490 # make menuconfig etc.
1491 # Error messages still appears in the original language
1493 PHONY += $(u-boot-dirs)
1494 $(u-boot-dirs): prepare scripts
1495 $(Q)$(MAKE) $(build)=$@
1498 # The "tools" are needed early
1499 $(filter-out tools, $(u-boot-dirs)): tools
1500 # The "examples" conditionally depend on U-Boot (say, when USE_PRIVATE_LIBGCC
1501 # is "yes"), so compile examples after U-Boot is compiled.
1502 examples: $(filter-out examples, $(u-boot-dirs))
1504 define filechk_uboot.release
1505 echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1508 # Store (new) UBOOTRELEASE string in include/config/uboot.release
1509 include/config/uboot.release: include/config/auto.conf FORCE
1510 $(call filechk,uboot.release)
1513 # Things we need to do before we recursively start building the kernel
1514 # or the modules are listed in "prepare".
1515 # A multi level approach is used. prepareN is processed before prepareN-1.
1516 # archprepare is used in arch Makefiles and when processed asm symlink,
1517 # version.h and scripts_basic is processed / created.
1519 # Listed in dependency order
1520 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
1522 # prepare3 is used to check if we are building in a separate output directory,
1524 # 1) Check that make has not been executed in the kernel src $(srctree)
1525 prepare3: include/config/uboot.release
1526 ifneq ($(KBUILD_SRC),)
1527 @$(kecho) ' Using $(srctree) as source for U-Boot'
1528 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1529 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
1530 echo >&2 " in the '$(srctree)' directory.";\
1535 # prepare2 creates a makefile if using a separate output directory
1536 prepare2: prepare3 outputmakefile
1538 prepare1: prepare2 $(version_h) $(timestamp_h) \
1539 include/config/auto.conf
1540 ifeq ($(wildcard $(LDSCRIPT)),)
1541 @echo >&2 " Could not find linker script."
1545 ifeq ($(CONFIG_USE_DEFAULT_ENV_FILE),y)
1546 prepare1: $(defaultenv_h)
1549 archprepare: prepare1 scripts_basic
1551 prepare0: archprepare FORCE
1552 $(Q)$(MAKE) $(build)=.
1554 # All the preparing..
1557 # Generate some files
1558 # ---------------------------------------------------------------------------
1560 define filechk_version.h
1561 (echo \#define PLAIN_VERSION \"$(UBOOTRELEASE)\"; \
1562 echo \#define U_BOOT_VERSION \"U-Boot \" PLAIN_VERSION; \
1563 echo \#define CC_VERSION_STRING \"$$(LC_ALL=C $(CC) --version | head -n 1)\"; \
1564 echo \#define LD_VERSION_STRING \"$$(LC_ALL=C $(LD) --version | head -n 1)\"; )
1567 # The SOURCE_DATE_EPOCH mechanism requires a date that behaves like GNU date.
1568 # The BSD date on the other hand behaves different and would produce errors
1569 # with the misused '-d' switch. Respect that and search a working date with
1570 # well known pre- and suffixes for the GNU variant of date.
1571 define filechk_timestamp.h
1572 (if test -n "$${SOURCE_DATE_EPOCH}"; then \
1573 SOURCE_DATE="@$${SOURCE_DATE_EPOCH}"; \
1575 for date in gdate date.gnu date; do \
1576 $${date} -u -d "$${SOURCE_DATE}" >/dev/null 2>&1 && DATE="$${date}"; \
1578 if test -n "$${DATE}"; then \
1579 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DATE "%b %d %C%y"'; \
1580 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TIME "%T"'; \
1581 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_TZ "%z"'; \
1582 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1583 LC_ALL=C $${DATE} -u -d "$${SOURCE_DATE}" +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1588 LC_ALL=C date +'#define U_BOOT_DATE "%b %d %C%y"'; \
1589 LC_ALL=C date +'#define U_BOOT_TIME "%T"'; \
1590 LC_ALL=C date +'#define U_BOOT_TZ "%z"'; \
1591 LC_ALL=C date +'#define U_BOOT_DMI_DATE "%m/%d/%Y"'; \
1592 LC_ALL=C date +'#define U_BOOT_BUILD_DATE 0x%Y%m%d'; \
1596 define filechk_defaultenv.h
1600 sed -e 's/\\\x0/\n/' | \
1601 xxd -i ; echo ", 0x00" ; )
1604 $(version_h): include/config/uboot.release FORCE
1605 $(call filechk,version.h)
1607 $(timestamp_h): $(srctree)/Makefile FORCE
1608 $(call filechk,timestamp.h)
1610 $(defaultenv_h): $(CONFIG_DEFAULT_ENV_FILE:"%"=%) FORCE
1611 $(call filechk,defaultenv.h)
1613 # ---------------------------------------------------------------------------
1614 quiet_cmd_cpp_lds = LDS $@
1615 cmd_cpp_lds = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) \
1616 -D__ASSEMBLY__ -x assembler-with-cpp -std=c99 -P -o $@ $<
1618 u-boot.lds: $(LDSCRIPT) prepare FORCE
1619 $(call if_changed_dep,cpp_lds)
1621 spl/u-boot-spl.bin: spl/u-boot-spl
1623 spl/u-boot-spl: tools prepare \
1624 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb) \
1625 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_TPL_OF_PLATDATA),dts/dt.dtb)
1626 $(Q)$(MAKE) obj=spl -f $(srctree)/scripts/Makefile.spl all
1628 spl/sunxi-spl.bin: spl/u-boot-spl
1631 spl/sunxi-spl-with-ecc.bin: spl/sunxi-spl.bin
1634 spl/u-boot-spl.sfp: spl/u-boot-spl
1637 spl/boot.bin: spl/u-boot-spl
1640 tpl/u-boot-tpl.bin: tools prepare \
1641 $(if $(CONFIG_OF_SEPARATE)$(CONFIG_OF_EMBED)$(CONFIG_SPL_OF_PLATDATA),dts/dt.dtb)
1642 $(Q)$(MAKE) obj=tpl -f $(srctree)/scripts/Makefile.spl all
1644 TAG_SUBDIRS := $(patsubst %,$(srctree)/%,$(u-boot-dirs) include)
1650 ctags -w -o ctags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1651 -name '*.[chS]' -print`
1655 etags -a -o etags `$(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) \
1656 -name '*.[chS]' -print`
1658 $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \
1664 grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
1667 @$(call SYSTEM_MAP,$<) > $@
1669 #########################################################################
1671 # ARM relocations should all be R_ARM_RELATIVE (32-bit) or
1672 # R_AARCH64_RELATIVE (64-bit).
1673 checkarmreloc: u-boot
1674 @RELOC="`$(CROSS_COMPILE)readelf -r -W $< | cut -d ' ' -f 4 | \
1675 grep R_A | sort -u`"; \
1676 if test "$$RELOC" != "R_ARM_RELATIVE" -a \
1677 "$$RELOC" != "R_AARCH64_RELATIVE"; then \
1678 echo "$< contains unexpected relocations: $$RELOC"; \
1682 envtools: scripts_basic $(version_h) $(timestamp_h)
1683 $(Q)$(MAKE) $(build)=tools/env
1685 tools-only: scripts_basic $(version_h) $(timestamp_h)
1686 $(Q)$(MAKE) $(build)=tools
1688 tools-all: export HOST_TOOLS_ALL=y
1689 tools-all: envtools tools ;
1691 cross_tools: export CROSS_BUILD_TOOLS=y
1692 cross_tools: tools ;
1696 git log --no-merges U-Boot-1_1_5.. | \
1697 unexpand -a | sed -e 's/\s\s*$$//' > $@
1699 #########################################################################
1702 # Cleaning is done on three levels.
1703 # make clean Delete most generated files
1704 # Leave enough to build external modules
1705 # make mrproper Delete the current configuration, and all generated files
1706 # make distclean Remove editor backup files, patch leftover files and the like
1708 # Directories & files removed with 'make clean'
1709 CLEAN_DIRS += $(MODVERDIR) \
1710 $(foreach d, spl tpl, $(patsubst %,$d/%, \
1711 $(filter-out include, $(shell ls -1 $d 2>/dev/null))))
1713 CLEAN_FILES += include/bmp_logo.h include/bmp_logo_data.h \
1714 boot* u-boot* MLO* SPL System.map fit-dtb.blob
1716 # Directories & files removed with 'make mrproper'
1717 MRPROPER_DIRS += include/config include/generated spl tpl \
1719 MRPROPER_FILES += .config .config.old include/autoconf.mk* include/config.h \
1720 ctags etags tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS
1722 # clean - Delete most, but leave enough to build external modules
1724 clean: rm-dirs := $(CLEAN_DIRS)
1725 clean: rm-files := $(CLEAN_FILES)
1727 clean-dirs := $(foreach f,$(u-boot-alldirs),$(if $(wildcard $(srctree)/$f/Makefile),$f))
1729 clean-dirs := $(addprefix _clean_, $(clean-dirs))
1731 PHONY += $(clean-dirs) clean archclean
1733 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1735 clean: $(clean-dirs)
1738 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1739 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1740 -o -name '*.ko.*' -o -name '*.su' \
1741 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1742 -o -name '*.lex.c' -o -name '*.tab.[ch]' \
1743 -o -name '*.symtypes' -o -name 'modules.order' \
1744 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1745 -o -name 'dsdt.aml' -o -name 'dsdt.asl.tmp' -o -name 'dsdt.c' \
1746 -o -name '*.efi' -o -name '*.gcno' -o -name '*.so' \) \
1747 -type f -print | xargs rm -f
1749 # mrproper - Delete all generated files, including .config
1751 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1752 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1753 mrproper-dirs := $(addprefix _mrproper_,scripts)
1755 PHONY += $(mrproper-dirs) mrproper archmrproper
1757 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1759 mrproper: clean $(mrproper-dirs)
1762 @rm -f arch/*/include/asm/arch
1769 @find $(srctree) $(RCS_FIND_IGNORE) \
1770 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1771 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1772 -o -name '.*.rej' -o -name '*%' -o -name 'core' \
1773 -o -name '*.pyc' \) \
1774 -type f -print | xargs rm -f
1778 F=`basename $(srctree)` ; cd .. ; \
1779 gtar --force-local -zcvf `LC_ALL=C date "+$$F-%Y-%m-%d-%T.tar.gz"` $$F
1782 @echo 'Cleaning targets:'
1783 @echo ' clean - Remove most generated files but keep the config'
1784 @echo ' mrproper - Remove all generated files + config + various backup files'
1785 @echo ' distclean - mrproper + remove editor backup and patch files'
1787 @echo 'Configuration targets:'
1788 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1790 @echo 'Test targets:'
1792 @echo ' check - Run all automated tests that use sandbox'
1793 @echo ' qcheck - Run quick automated tests that use sandbox'
1795 @echo 'Other generic targets:'
1796 @echo ' all - Build all necessary images depending on configuration'
1797 @echo ' tests - Build U-Boot for sandbox and run tests'
1798 @echo '* u-boot - Build the bare u-boot'
1799 @echo ' dir/ - Build all files in dir and below'
1800 @echo ' dir/file.[oisS] - Build specified target only'
1801 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1802 @echo ' (requires a recent binutils and recent build (System.map))'
1803 @echo ' tags/ctags - Generate ctags file for editors'
1804 @echo ' etags - Generate etags file for editors'
1805 @echo ' cscope - Generate cscope index'
1806 @echo ' ubootrelease - Output the release version string (use with make -s)'
1807 @echo ' ubootversion - Output the version stored in Makefile (use with make -s)'
1808 @echo " cfg - Don't build, just create the .cfg files"
1809 @echo " envtools - Build only the target-side environment tools"
1811 @echo 'Static analysers'
1812 @echo ' checkstack - Generate a list of stack hogs'
1813 @echo ' coccicheck - Execute static code analysis with Coccinelle'
1815 @echo 'Documentation targets:'
1816 @$(MAKE) -f $(srctree)/Documentation/Makefile dochelp
1818 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1819 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1820 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1821 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1822 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1823 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1824 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1825 @echo ' 1: warnings which may be relevant and do not occur too often'
1826 @echo ' 2: warnings which occur quite often but may still be relevant'
1827 @echo ' 3: more obscure warnings, can most likely be ignored'
1828 @echo ' Multiple levels can be combined with W=12 or W=123'
1830 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1831 @echo 'For further info see the ./README file'
1837 $(srctree)/test/run quick
1839 # Documentation targets
1840 # ---------------------------------------------------------------------------
1841 DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
1842 linkcheckdocs dochelp refcheckdocs
1843 PHONY += $(DOC_TARGETS)
1844 $(DOC_TARGETS): scripts_basic FORCE
1845 $(Q)$(MAKE) $(build)=Documentation $@
1847 endif #ifeq ($(config-targets),1)
1848 endif #ifeq ($(mixed-targets),1)
1850 PHONY += checkstack ubootrelease ubootversion
1853 $(OBJDUMP) -d u-boot $$(find . -name u-boot-spl) | \
1854 $(PERL) $(src)/scripts/checkstack.pl $(ARCH)
1857 @echo "$(UBOOTVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1860 @echo $(UBOOTVERSION)
1863 # ---------------------------------------------------------------------------
1864 # Single targets are compatible with:
1865 # - build with mixed source and output
1866 # - build with separate output dir 'make O=...'
1867 # - external modules
1869 # target-dir => where to store outputfile
1870 # build-dir => directory in kernel source tree to use
1872 ifeq ($(KBUILD_EXTMOD),)
1873 build-dir = $(patsubst %/,%,$(dir $@))
1874 target-dir = $(dir $@)
1876 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1877 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1878 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1881 %.s: %.c prepare scripts FORCE
1882 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1883 %.i: %.c prepare scripts FORCE
1884 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1885 %.o: %.c prepare scripts FORCE
1886 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1887 %.lst: %.c prepare scripts FORCE
1888 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1889 %.s: %.S prepare scripts FORCE
1890 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1891 %.o: %.S prepare scripts FORCE
1892 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1893 %.symtypes: %.c prepare scripts FORCE
1894 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1897 /: prepare scripts FORCE
1899 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1900 $(build)=$(build-dir)
1901 %/: prepare scripts FORCE
1903 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1904 $(build)=$(build-dir)
1905 %.ko: prepare scripts FORCE
1907 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1908 $(build)=$(build-dir) $(@:.ko=.o)
1909 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1911 # Consistency checks
1912 # ---------------------------------------------------------------------------
1917 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1919 # FIXME Should go into a make.lib or something
1920 # ===========================================================================
1922 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1923 cmd_rmdirs = rm -rf $(rm-dirs)
1925 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1926 cmd_rmfiles = rm -f $(rm-files)
1928 # read all saved command lines
1930 targets := $(wildcard $(sort $(targets)))
1931 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1933 ifneq ($(cmd_files),)
1934 $(cmd_files): ; # Do not try to update included dependency files
1935 include $(cmd_files)
1938 endif # skip-makefile
1943 # Declare the contents of the .PHONY variable as phony. We keep that
1944 # information in a variable so we can use it in if_changed and friends.